author | jjg |
Tue, 08 Nov 2011 11:51:05 -0800 | |
changeset 10950 | e87b50888909 |
parent 10948 | 063463f6535f |
child 11055 | ec1418effa77 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.tools.javac.parser; |
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import java.util.*; |
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import com.sun.tools.javac.code.*; |
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import com.sun.tools.javac.parser.Tokens.*; |
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import com.sun.tools.javac.parser.Tokens.Comment.CommentStyle; |
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import com.sun.tools.javac.tree.*; |
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import com.sun.tools.javac.tree.JCTree.*; |
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import com.sun.tools.javac.util.*; |
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import com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag; |
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import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition; |
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import com.sun.tools.javac.util.List; |
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import static com.sun.tools.javac.parser.Tokens.TokenKind.*; |
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import static com.sun.tools.javac.parser.Tokens.TokenKind.ASSERT; |
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import static com.sun.tools.javac.parser.Tokens.TokenKind.CASE; |
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import static com.sun.tools.javac.parser.Tokens.TokenKind.CATCH; |
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import static com.sun.tools.javac.parser.Tokens.TokenKind.EQ; |
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import static com.sun.tools.javac.parser.Tokens.TokenKind.GT; |
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import static com.sun.tools.javac.parser.Tokens.TokenKind.IMPORT; |
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import static com.sun.tools.javac.parser.Tokens.TokenKind.LT; |
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import static com.sun.tools.javac.util.ListBuffer.lb; |
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import static com.sun.tools.javac.tree.JCTree.Tag.*; |
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/** The parser maps a token sequence into an abstract syntax |
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* tree. It operates by recursive descent, with code derived |
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* systematically from an LL(1) grammar. For efficiency reasons, an |
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* operator precedence scheme is used for parsing binary operation |
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* expressions. |
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* |
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* <p><b>This is NOT part of any supported API. |
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* If you write code that depends on this, you do so at your own risk. |
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* This code and its internal interfaces are subject to change or |
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* deletion without notice.</b> |
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*/ |
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public class JavacParser implements Parser { |
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/** The number of precedence levels of infix operators. |
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*/ |
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private static final int infixPrecedenceLevels = 10; |
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/** The scanner used for lexical analysis. |
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*/ |
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protected Lexer S; |
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/** The factory to be used for abstract syntax tree construction. |
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*/ |
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protected TreeMaker F; |
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/** The log to be used for error diagnostics. |
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*/ |
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private Log log; |
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/** The Source language setting. */ |
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private Source source; |
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/** The name table. */ |
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private Names names; |
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/** Construct a parser from a given scanner, tree factory and log. |
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*/ |
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protected JavacParser(ParserFactory fac, |
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Lexer S, |
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boolean keepDocComments, |
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boolean keepLineMap) { |
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this.S = S; |
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nextToken(); // prime the pump |
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this.F = fac.F; |
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this.log = fac.log; |
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this.names = fac.names; |
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this.source = fac.source; |
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this.allowGenerics = source.allowGenerics(); |
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this.allowVarargs = source.allowVarargs(); |
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this.allowAsserts = source.allowAsserts(); |
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this.allowEnums = source.allowEnums(); |
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this.allowForeach = source.allowForeach(); |
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this.allowStaticImport = source.allowStaticImport(); |
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this.allowAnnotations = source.allowAnnotations(); |
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this.allowTWR = source.allowTryWithResources(); |
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this.allowDiamond = source.allowDiamond(); |
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this.allowMulticatch = source.allowMulticatch(); |
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this.allowStringFolding = fac.options.getBoolean("allowStringFolding", true); |
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this.keepDocComments = keepDocComments; |
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docComments = keepDocComments ? new HashMap<JCTree,String>() : null; |
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this.keepLineMap = keepLineMap; |
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this.errorTree = F.Erroneous(); |
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} |
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/** Switch: Should generics be recognized? |
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*/ |
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boolean allowGenerics; |
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/** Switch: Should diamond operator be recognized? |
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*/ |
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boolean allowDiamond; |
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/** Switch: Should multicatch clause be accepted? |
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*/ |
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boolean allowMulticatch; |
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/** Switch: Should varargs be recognized? |
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*/ |
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boolean allowVarargs; |
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/** Switch: should we recognize assert statements, or just give a warning? |
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*/ |
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boolean allowAsserts; |
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/** Switch: should we recognize enums, or just give a warning? |
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*/ |
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boolean allowEnums; |
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/** Switch: should we recognize foreach? |
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*/ |
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boolean allowForeach; |
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/** Switch: should we recognize foreach? |
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*/ |
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boolean allowStaticImport; |
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/** Switch: should we recognize annotations? |
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*/ |
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boolean allowAnnotations; |
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/** Switch: should we recognize try-with-resources? |
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*/ |
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boolean allowTWR; |
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/** Switch: should we fold strings? |
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*/ |
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boolean allowStringFolding; |
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/** Switch: should we keep docComments? |
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*/ |
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boolean keepDocComments; |
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/** Switch: should we keep line table? |
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*/ |
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boolean keepLineMap; |
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/** When terms are parsed, the mode determines which is expected: |
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* mode = EXPR : an expression |
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* mode = TYPE : a type |
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* mode = NOPARAMS : no parameters allowed for type |
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* mode = TYPEARG : type argument |
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*/ |
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static final int EXPR = 0x1; |
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static final int TYPE = 0x2; |
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static final int NOPARAMS = 0x4; |
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static final int TYPEARG = 0x8; |
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static final int DIAMOND = 0x10; |
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/** The current mode. |
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*/ |
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private int mode = 0; |
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/** The mode of the term that was parsed last. |
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*/ |
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private int lastmode = 0; |
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/* ---------- token management -------------- */ |
188 |
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protected Token token; |
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protected void nextToken() { |
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S.nextToken(); |
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token = S.token(); |
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} |
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/* ---------- error recovery -------------- */ |
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private JCErroneous errorTree; |
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/** Skip forward until a suitable stop token is found. |
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*/ |
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private void skip(boolean stopAtImport, boolean stopAtMemberDecl, boolean stopAtIdentifier, boolean stopAtStatement) { |
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while (true) { |
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switch (token.kind) { |
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case SEMI: |
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nextToken(); |
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return; |
208 |
case PUBLIC: |
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case FINAL: |
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case ABSTRACT: |
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case MONKEYS_AT: |
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case EOF: |
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case CLASS: |
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case INTERFACE: |
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case ENUM: |
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return; |
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case IMPORT: |
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if (stopAtImport) |
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return; |
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break; |
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case LBRACE: |
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case RBRACE: |
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case PRIVATE: |
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case PROTECTED: |
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225 |
case STATIC: |
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case TRANSIENT: |
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case NATIVE: |
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case VOLATILE: |
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case SYNCHRONIZED: |
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230 |
case STRICTFP: |
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231 |
case LT: |
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case BYTE: |
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case SHORT: |
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case CHAR: |
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case INT: |
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case LONG: |
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case FLOAT: |
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238 |
case DOUBLE: |
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case BOOLEAN: |
|
240 |
case VOID: |
|
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if (stopAtMemberDecl) |
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242 |
return; |
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243 |
break; |
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case IDENTIFIER: |
|
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if (stopAtIdentifier) |
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return; |
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247 |
break; |
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case CASE: |
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249 |
case DEFAULT: |
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250 |
case IF: |
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case FOR: |
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case WHILE: |
|
253 |
case DO: |
|
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case TRY: |
|
255 |
case SWITCH: |
|
256 |
case RETURN: |
|
257 |
case THROW: |
|
258 |
case BREAK: |
|
259 |
case CONTINUE: |
|
260 |
case ELSE: |
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261 |
case FINALLY: |
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262 |
case CATCH: |
|
263 |
if (stopAtStatement) |
|
264 |
return; |
|
265 |
break; |
|
266 |
} |
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10815 | 267 |
nextToken(); |
10 | 268 |
} |
269 |
} |
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270 |
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private JCErroneous syntaxError(int pos, String key, TokenKind... args) { |
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return syntaxError(pos, List.<JCTree>nil(), key, args); |
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} |
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private JCErroneous syntaxError(int pos, List<JCTree> errs, String key, TokenKind... args) { |
10 | 276 |
setErrorEndPos(pos); |
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JCErroneous err = F.at(pos).Erroneous(errs); |
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reportSyntaxError(err, key, (Object[])args); |
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if (errs != null) { |
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JCTree last = errs.last(); |
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if (last != null) |
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storeEnd(last, pos); |
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} |
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return toP(err); |
10 | 285 |
} |
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private int errorPos = Position.NOPOS; |
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10 | 289 |
/** |
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* Report a syntax using the given the position parameter and arguments, |
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* unless one was already reported at the same position. |
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*/ |
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private void reportSyntaxError(int pos, String key, Object... args) { |
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JCDiagnostic.DiagnosticPosition diag = new JCDiagnostic.SimpleDiagnosticPosition(pos); |
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reportSyntaxError(diag, key, args); |
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} |
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/** |
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* Report a syntax error using the given DiagnosticPosition object and |
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* arguments, unless one was already reported at the same position. |
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301 |
*/ |
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302 |
private void reportSyntaxError(JCDiagnostic.DiagnosticPosition diagPos, String key, Object... args) { |
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303 |
int pos = diagPos.getPreferredPosition(); |
10 | 304 |
if (pos > S.errPos() || pos == Position.NOPOS) { |
10815 | 305 |
if (token.kind == EOF) { |
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306 |
error(diagPos, "premature.eof"); |
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|
307 |
} else { |
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308 |
error(diagPos, key, args); |
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309 |
} |
10 | 310 |
} |
311 |
S.errPos(pos); |
|
10815 | 312 |
if (token.pos == errorPos) |
313 |
nextToken(); // guarantee progress |
|
314 |
errorPos = token.pos; |
|
10 | 315 |
} |
316 |
||
317 |
||
318 |
/** Generate a syntax error at current position unless one was already |
|
319 |
* reported at the same position. |
|
320 |
*/ |
|
321 |
private JCErroneous syntaxError(String key) { |
|
10815 | 322 |
return syntaxError(token.pos, key); |
10 | 323 |
} |
324 |
||
325 |
/** Generate a syntax error at current position unless one was |
|
326 |
* already reported at the same position. |
|
327 |
*/ |
|
10815 | 328 |
private JCErroneous syntaxError(String key, TokenKind arg) { |
329 |
return syntaxError(token.pos, key, arg); |
|
10 | 330 |
} |
331 |
||
332 |
/** If next input token matches given token, skip it, otherwise report |
|
333 |
* an error. |
|
334 |
*/ |
|
10815 | 335 |
public void accept(TokenKind tk) { |
336 |
if (token.kind == tk) { |
|
337 |
nextToken(); |
|
10 | 338 |
} else { |
10815 | 339 |
setErrorEndPos(token.pos); |
340 |
reportSyntaxError(S.prevToken().endPos, "expected", tk); |
|
10 | 341 |
} |
342 |
} |
|
343 |
||
344 |
/** Report an illegal start of expression/type error at given position. |
|
345 |
*/ |
|
346 |
JCExpression illegal(int pos) { |
|
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|
347 |
setErrorEndPos(pos); |
10 | 348 |
if ((mode & EXPR) != 0) |
349 |
return syntaxError(pos, "illegal.start.of.expr"); |
|
350 |
else |
|
351 |
return syntaxError(pos, "illegal.start.of.type"); |
|
352 |
||
353 |
} |
|
354 |
||
355 |
/** Report an illegal start of expression/type error at current position. |
|
356 |
*/ |
|
357 |
JCExpression illegal() { |
|
10815 | 358 |
return illegal(token.pos); |
10 | 359 |
} |
360 |
||
361 |
/** Diagnose a modifier flag from the set, if any. */ |
|
362 |
void checkNoMods(long mods) { |
|
363 |
if (mods != 0) { |
|
364 |
long lowestMod = mods & -mods; |
|
10815 | 365 |
error(token.pos, "mod.not.allowed.here", |
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|
366 |
Flags.asFlagSet(lowestMod)); |
10 | 367 |
} |
368 |
} |
|
369 |
||
370 |
/* ---------- doc comments --------- */ |
|
371 |
||
372 |
/** A hashtable to store all documentation comments |
|
373 |
* indexed by the tree nodes they refer to. |
|
374 |
* defined only if option flag keepDocComment is set. |
|
375 |
*/ |
|
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376 |
private final Map<JCTree, String> docComments; |
10 | 377 |
|
378 |
/** Make an entry into docComments hashtable, |
|
379 |
* provided flag keepDocComments is set and given doc comment is non-null. |
|
380 |
* @param tree The tree to be used as index in the hashtable |
|
381 |
* @param dc The doc comment to associate with the tree, or null. |
|
382 |
*/ |
|
383 |
void attach(JCTree tree, String dc) { |
|
384 |
if (keepDocComments && dc != null) { |
|
385 |
// System.out.println("doc comment = ");System.out.println(dc);//DEBUG |
|
386 |
docComments.put(tree, dc); |
|
387 |
} |
|
388 |
} |
|
389 |
||
390 |
/* -------- source positions ------- */ |
|
391 |
||
392 |
private int errorEndPos = -1; |
|
393 |
||
394 |
private void setErrorEndPos(int errPos) { |
|
395 |
if (errPos > errorEndPos) |
|
396 |
errorEndPos = errPos; |
|
397 |
} |
|
398 |
||
399 |
protected int getErrorEndPos() { |
|
400 |
return errorEndPos; |
|
401 |
} |
|
402 |
||
403 |
/** |
|
404 |
* Store ending position for a tree. |
|
405 |
* @param tree The tree. |
|
406 |
* @param endpos The ending position to associate with the tree. |
|
407 |
*/ |
|
408 |
protected void storeEnd(JCTree tree, int endpos) {} |
|
409 |
||
410 |
/** |
|
411 |
* Store ending position for a tree. The ending position should |
|
412 |
* be the ending position of the current token. |
|
413 |
* @param t The tree. |
|
414 |
*/ |
|
415 |
protected <T extends JCTree> T to(T t) { return t; } |
|
416 |
||
417 |
/** |
|
418 |
* Store ending position for a tree. The ending position should |
|
419 |
* be greater of the ending position of the previous token and errorEndPos. |
|
420 |
* @param t The tree. |
|
421 |
*/ |
|
422 |
protected <T extends JCTree> T toP(T t) { return t; } |
|
423 |
||
424 |
/** Get the start position for a tree node. The start position is |
|
425 |
* defined to be the position of the first character of the first |
|
426 |
* token of the node's source text. |
|
427 |
* @param tree The tree node |
|
428 |
*/ |
|
429 |
public int getStartPos(JCTree tree) { |
|
430 |
return TreeInfo.getStartPos(tree); |
|
431 |
} |
|
432 |
||
433 |
/** |
|
434 |
* Get the end position for a tree node. The end position is |
|
435 |
* defined to be the position of the last character of the last |
|
436 |
* token of the node's source text. Returns Position.NOPOS if end |
|
437 |
* positions are not generated or the position is otherwise not |
|
438 |
* found. |
|
439 |
* @param tree The tree node |
|
440 |
*/ |
|
441 |
public int getEndPos(JCTree tree) { |
|
442 |
return Position.NOPOS; |
|
443 |
} |
|
444 |
||
445 |
||
446 |
||
447 |
/* ---------- parsing -------------- */ |
|
448 |
||
449 |
/** |
|
450 |
* Ident = IDENTIFIER |
|
451 |
*/ |
|
452 |
Name ident() { |
|
10815 | 453 |
if (token.kind == IDENTIFIER) { |
454 |
Name name = token.name(); |
|
455 |
nextToken(); |
|
10 | 456 |
return name; |
10815 | 457 |
} else if (token.kind == ASSERT) { |
10 | 458 |
if (allowAsserts) { |
10815 | 459 |
error(token.pos, "assert.as.identifier"); |
460 |
nextToken(); |
|
10 | 461 |
return names.error; |
462 |
} else { |
|
10815 | 463 |
warning(token.pos, "assert.as.identifier"); |
464 |
Name name = token.name(); |
|
465 |
nextToken(); |
|
10 | 466 |
return name; |
467 |
} |
|
10815 | 468 |
} else if (token.kind == ENUM) { |
10 | 469 |
if (allowEnums) { |
10815 | 470 |
error(token.pos, "enum.as.identifier"); |
471 |
nextToken(); |
|
10 | 472 |
return names.error; |
473 |
} else { |
|
10815 | 474 |
warning(token.pos, "enum.as.identifier"); |
475 |
Name name = token.name(); |
|
476 |
nextToken(); |
|
10 | 477 |
return name; |
478 |
} |
|
479 |
} else { |
|
480 |
accept(IDENTIFIER); |
|
481 |
return names.error; |
|
482 |
} |
|
483 |
} |
|
484 |
||
485 |
/** |
|
486 |
* Qualident = Ident { DOT Ident } |
|
487 |
*/ |
|
488 |
public JCExpression qualident() { |
|
10815 | 489 |
JCExpression t = toP(F.at(token.pos).Ident(ident())); |
490 |
while (token.kind == DOT) { |
|
491 |
int pos = token.pos; |
|
492 |
nextToken(); |
|
10 | 493 |
t = toP(F.at(pos).Select(t, ident())); |
494 |
} |
|
495 |
return t; |
|
496 |
} |
|
497 |
||
10455
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|
498 |
JCExpression literal(Name prefix) { |
10815 | 499 |
return literal(prefix, token.pos); |
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500 |
} |
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|
501 |
|
10 | 502 |
/** |
503 |
* Literal = |
|
504 |
* INTLITERAL |
|
505 |
* | LONGLITERAL |
|
506 |
* | FLOATLITERAL |
|
507 |
* | DOUBLELITERAL |
|
508 |
* | CHARLITERAL |
|
509 |
* | STRINGLITERAL |
|
510 |
* | TRUE |
|
511 |
* | FALSE |
|
512 |
* | NULL |
|
513 |
*/ |
|
10455
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diff
changeset
|
514 |
JCExpression literal(Name prefix, int pos) { |
10 | 515 |
JCExpression t = errorTree; |
10815 | 516 |
switch (token.kind) { |
10 | 517 |
case INTLITERAL: |
518 |
try { |
|
519 |
t = F.at(pos).Literal( |
|
520 |
TypeTags.INT, |
|
10815 | 521 |
Convert.string2int(strval(prefix), token.radix())); |
10 | 522 |
} catch (NumberFormatException ex) { |
10815 | 523 |
error(token.pos, "int.number.too.large", strval(prefix)); |
10 | 524 |
} |
525 |
break; |
|
526 |
case LONGLITERAL: |
|
527 |
try { |
|
528 |
t = F.at(pos).Literal( |
|
529 |
TypeTags.LONG, |
|
10815 | 530 |
new Long(Convert.string2long(strval(prefix), token.radix()))); |
10 | 531 |
} catch (NumberFormatException ex) { |
10815 | 532 |
error(token.pos, "int.number.too.large", strval(prefix)); |
10 | 533 |
} |
534 |
break; |
|
535 |
case FLOATLITERAL: { |
|
10815 | 536 |
String proper = token.radix() == 16 ? |
537 |
("0x"+ token.stringVal()) : |
|
538 |
token.stringVal(); |
|
10 | 539 |
Float n; |
540 |
try { |
|
541 |
n = Float.valueOf(proper); |
|
542 |
} catch (NumberFormatException ex) { |
|
7636
030f141aa32b
6504896: TreeMaker.Literal(Object) does not support Booleans
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parents:
7211
diff
changeset
|
543 |
// error already reported in scanner |
10 | 544 |
n = Float.NaN; |
545 |
} |
|
546 |
if (n.floatValue() == 0.0f && !isZero(proper)) |
|
10815 | 547 |
error(token.pos, "fp.number.too.small"); |
10 | 548 |
else if (n.floatValue() == Float.POSITIVE_INFINITY) |
10815 | 549 |
error(token.pos, "fp.number.too.large"); |
10 | 550 |
else |
551 |
t = F.at(pos).Literal(TypeTags.FLOAT, n); |
|
552 |
break; |
|
553 |
} |
|
554 |
case DOUBLELITERAL: { |
|
10815 | 555 |
String proper = token.radix() == 16 ? |
556 |
("0x"+ token.stringVal()) : |
|
557 |
token.stringVal(); |
|
10 | 558 |
Double n; |
559 |
try { |
|
560 |
n = Double.valueOf(proper); |
|
561 |
} catch (NumberFormatException ex) { |
|
562 |
// error already reported in scanner |
|
563 |
n = Double.NaN; |
|
564 |
} |
|
565 |
if (n.doubleValue() == 0.0d && !isZero(proper)) |
|
10815 | 566 |
error(token.pos, "fp.number.too.small"); |
10 | 567 |
else if (n.doubleValue() == Double.POSITIVE_INFINITY) |
10815 | 568 |
error(token.pos, "fp.number.too.large"); |
10 | 569 |
else |
570 |
t = F.at(pos).Literal(TypeTags.DOUBLE, n); |
|
571 |
break; |
|
572 |
} |
|
573 |
case CHARLITERAL: |
|
574 |
t = F.at(pos).Literal( |
|
575 |
TypeTags.CHAR, |
|
10815 | 576 |
token.stringVal().charAt(0) + 0); |
10 | 577 |
break; |
578 |
case STRINGLITERAL: |
|
579 |
t = F.at(pos).Literal( |
|
580 |
TypeTags.CLASS, |
|
10815 | 581 |
token.stringVal()); |
10 | 582 |
break; |
583 |
case TRUE: case FALSE: |
|
584 |
t = F.at(pos).Literal( |
|
585 |
TypeTags.BOOLEAN, |
|
10815 | 586 |
(token.kind == TRUE ? 1 : 0)); |
10 | 587 |
break; |
588 |
case NULL: |
|
589 |
t = F.at(pos).Literal( |
|
590 |
TypeTags.BOT, |
|
591 |
null); |
|
592 |
break; |
|
593 |
default: |
|
8032 | 594 |
Assert.error(); |
10 | 595 |
} |
596 |
if (t == errorTree) |
|
597 |
t = F.at(pos).Erroneous(); |
|
10815 | 598 |
storeEnd(t, token.endPos); |
599 |
nextToken(); |
|
10 | 600 |
return t; |
601 |
} |
|
602 |
//where |
|
603 |
boolean isZero(String s) { |
|
604 |
char[] cs = s.toCharArray(); |
|
3894 | 605 |
int base = ((cs.length > 1 && Character.toLowerCase(cs[1]) == 'x') ? 16 : 10); |
10 | 606 |
int i = ((base==16) ? 2 : 0); |
607 |
while (i < cs.length && (cs[i] == '0' || cs[i] == '.')) i++; |
|
608 |
return !(i < cs.length && (Character.digit(cs[i], base) > 0)); |
|
609 |
} |
|
610 |
||
611 |
String strval(Name prefix) { |
|
10815 | 612 |
String s = token.stringVal(); |
1260
a772ba9ba43d
6574134: Allow for alternative implementation of Name Table with garbage collection of name bytes
jjg
parents:
1258
diff
changeset
|
613 |
return prefix.isEmpty() ? s : prefix + s; |
10 | 614 |
} |
615 |
||
616 |
/** terms can be either expressions or types. |
|
617 |
*/ |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
618 |
public JCExpression parseExpression() { |
10 | 619 |
return term(EXPR); |
620 |
} |
|
621 |
||
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
622 |
public JCExpression parseType() { |
10 | 623 |
return term(TYPE); |
624 |
} |
|
625 |
||
626 |
JCExpression term(int newmode) { |
|
627 |
int prevmode = mode; |
|
628 |
mode = newmode; |
|
629 |
JCExpression t = term(); |
|
630 |
lastmode = mode; |
|
631 |
mode = prevmode; |
|
632 |
return t; |
|
633 |
} |
|
634 |
||
635 |
/** |
|
636 |
* Expression = Expression1 [ExpressionRest] |
|
637 |
* ExpressionRest = [AssignmentOperator Expression1] |
|
638 |
* AssignmentOperator = "=" | "+=" | "-=" | "*=" | "/=" | |
|
639 |
* "&=" | "|=" | "^=" | |
|
640 |
* "%=" | "<<=" | ">>=" | ">>>=" |
|
641 |
* Type = Type1 |
|
642 |
* TypeNoParams = TypeNoParams1 |
|
643 |
* StatementExpression = Expression |
|
644 |
* ConstantExpression = Expression |
|
645 |
*/ |
|
646 |
JCExpression term() { |
|
647 |
JCExpression t = term1(); |
|
648 |
if ((mode & EXPR) != 0 && |
|
10815 | 649 |
token.kind == EQ || PLUSEQ.compareTo(token.kind) <= 0 && token.kind.compareTo(GTGTGTEQ) <= 0) |
10 | 650 |
return termRest(t); |
651 |
else |
|
652 |
return t; |
|
653 |
} |
|
654 |
||
655 |
JCExpression termRest(JCExpression t) { |
|
10815 | 656 |
switch (token.kind) { |
10 | 657 |
case EQ: { |
10815 | 658 |
int pos = token.pos; |
659 |
nextToken(); |
|
10 | 660 |
mode = EXPR; |
661 |
JCExpression t1 = term(); |
|
662 |
return toP(F.at(pos).Assign(t, t1)); |
|
663 |
} |
|
664 |
case PLUSEQ: |
|
665 |
case SUBEQ: |
|
666 |
case STAREQ: |
|
667 |
case SLASHEQ: |
|
668 |
case PERCENTEQ: |
|
669 |
case AMPEQ: |
|
670 |
case BAREQ: |
|
671 |
case CARETEQ: |
|
672 |
case LTLTEQ: |
|
673 |
case GTGTEQ: |
|
674 |
case GTGTGTEQ: |
|
10815 | 675 |
int pos = token.pos; |
676 |
TokenKind tk = token.kind; |
|
677 |
nextToken(); |
|
10 | 678 |
mode = EXPR; |
679 |
JCExpression t1 = term(); |
|
10815 | 680 |
return F.at(pos).Assignop(optag(tk), t, t1); |
10 | 681 |
default: |
682 |
return t; |
|
683 |
} |
|
684 |
} |
|
685 |
||
686 |
/** Expression1 = Expression2 [Expression1Rest] |
|
687 |
* Type1 = Type2 |
|
688 |
* TypeNoParams1 = TypeNoParams2 |
|
689 |
*/ |
|
690 |
JCExpression term1() { |
|
691 |
JCExpression t = term2(); |
|
10815 | 692 |
if ((mode & EXPR) != 0 && token.kind == QUES) { |
10 | 693 |
mode = EXPR; |
694 |
return term1Rest(t); |
|
695 |
} else { |
|
696 |
return t; |
|
697 |
} |
|
698 |
} |
|
699 |
||
700 |
/** Expression1Rest = ["?" Expression ":" Expression1] |
|
701 |
*/ |
|
702 |
JCExpression term1Rest(JCExpression t) { |
|
10815 | 703 |
if (token.kind == QUES) { |
704 |
int pos = token.pos; |
|
705 |
nextToken(); |
|
10 | 706 |
JCExpression t1 = term(); |
707 |
accept(COLON); |
|
708 |
JCExpression t2 = term1(); |
|
709 |
return F.at(pos).Conditional(t, t1, t2); |
|
710 |
} else { |
|
711 |
return t; |
|
712 |
} |
|
713 |
} |
|
714 |
||
715 |
/** Expression2 = Expression3 [Expression2Rest] |
|
716 |
* Type2 = Type3 |
|
717 |
* TypeNoParams2 = TypeNoParams3 |
|
718 |
*/ |
|
719 |
JCExpression term2() { |
|
720 |
JCExpression t = term3(); |
|
10815 | 721 |
if ((mode & EXPR) != 0 && prec(token.kind) >= TreeInfo.orPrec) { |
10 | 722 |
mode = EXPR; |
723 |
return term2Rest(t, TreeInfo.orPrec); |
|
724 |
} else { |
|
725 |
return t; |
|
726 |
} |
|
727 |
} |
|
728 |
||
729 |
/* Expression2Rest = {infixop Expression3} |
|
730 |
* | Expression3 instanceof Type |
|
731 |
* infixop = "||" |
|
732 |
* | "&&" |
|
733 |
* | "|" |
|
734 |
* | "^" |
|
735 |
* | "&" |
|
736 |
* | "==" | "!=" |
|
737 |
* | "<" | ">" | "<=" | ">=" |
|
738 |
* | "<<" | ">>" | ">>>" |
|
739 |
* | "+" | "-" |
|
740 |
* | "*" | "/" | "%" |
|
741 |
*/ |
|
742 |
JCExpression term2Rest(JCExpression t, int minprec) { |
|
743 |
List<JCExpression[]> savedOd = odStackSupply.elems; |
|
744 |
JCExpression[] odStack = newOdStack(); |
|
745 |
List<Token[]> savedOp = opStackSupply.elems; |
|
746 |
Token[] opStack = newOpStack(); |
|
10815 | 747 |
|
10 | 748 |
// optimization, was odStack = new Tree[...]; opStack = new Tree[...]; |
749 |
int top = 0; |
|
750 |
odStack[0] = t; |
|
10815 | 751 |
int startPos = token.pos; |
752 |
Token topOp = Tokens.DUMMY; |
|
753 |
while (prec(token.kind) >= minprec) { |
|
10 | 754 |
opStack[top] = topOp; |
755 |
top++; |
|
10815 | 756 |
topOp = token; |
757 |
nextToken(); |
|
758 |
odStack[top] = (topOp.kind == INSTANCEOF) ? parseType() : term3(); |
|
759 |
while (top > 0 && prec(topOp.kind) >= prec(token.kind)) { |
|
760 |
odStack[top-1] = makeOp(topOp.pos, topOp.kind, odStack[top-1], |
|
10 | 761 |
odStack[top]); |
762 |
top--; |
|
763 |
topOp = opStack[top]; |
|
764 |
} |
|
765 |
} |
|
8032 | 766 |
Assert.check(top == 0); |
10 | 767 |
t = odStack[0]; |
768 |
||
10950 | 769 |
if (t.hasTag(JCTree.Tag.PLUS)) { |
10 | 770 |
StringBuffer buf = foldStrings(t); |
771 |
if (buf != null) { |
|
772 |
t = toP(F.at(startPos).Literal(TypeTags.CLASS, buf.toString())); |
|
773 |
} |
|
774 |
} |
|
775 |
||
776 |
odStackSupply.elems = savedOd; // optimization |
|
777 |
opStackSupply.elems = savedOp; // optimization |
|
778 |
return t; |
|
779 |
} |
|
780 |
//where |
|
781 |
/** Construct a binary or type test node. |
|
782 |
*/ |
|
783 |
private JCExpression makeOp(int pos, |
|
10815 | 784 |
TokenKind topOp, |
10 | 785 |
JCExpression od1, |
786 |
JCExpression od2) |
|
787 |
{ |
|
788 |
if (topOp == INSTANCEOF) { |
|
789 |
return F.at(pos).TypeTest(od1, od2); |
|
790 |
} else { |
|
791 |
return F.at(pos).Binary(optag(topOp), od1, od2); |
|
792 |
} |
|
793 |
} |
|
794 |
/** If tree is a concatenation of string literals, replace it |
|
795 |
* by a single literal representing the concatenated string. |
|
796 |
*/ |
|
797 |
protected StringBuffer foldStrings(JCTree tree) { |
|
10200
56cc93e7b6ef
7068902: (javac) allow enabling or disabling of String folding
ksrini
parents:
10199
diff
changeset
|
798 |
if (!allowStringFolding) |
56cc93e7b6ef
7068902: (javac) allow enabling or disabling of String folding
ksrini
parents:
10199
diff
changeset
|
799 |
return null; |
10 | 800 |
List<String> buf = List.nil(); |
801 |
while (true) { |
|
10950 | 802 |
if (tree.hasTag(LITERAL)) { |
10 | 803 |
JCLiteral lit = (JCLiteral) tree; |
804 |
if (lit.typetag == TypeTags.CLASS) { |
|
805 |
StringBuffer sbuf = |
|
806 |
new StringBuffer((String)lit.value); |
|
807 |
while (buf.nonEmpty()) { |
|
808 |
sbuf.append(buf.head); |
|
809 |
buf = buf.tail; |
|
810 |
} |
|
811 |
return sbuf; |
|
812 |
} |
|
10950 | 813 |
} else if (tree.hasTag(JCTree.Tag.PLUS)) { |
10 | 814 |
JCBinary op = (JCBinary)tree; |
10950 | 815 |
if (op.rhs.hasTag(LITERAL)) { |
10 | 816 |
JCLiteral lit = (JCLiteral) op.rhs; |
817 |
if (lit.typetag == TypeTags.CLASS) { |
|
818 |
buf = buf.prepend((String) lit.value); |
|
819 |
tree = op.lhs; |
|
820 |
continue; |
|
821 |
} |
|
822 |
} |
|
823 |
} |
|
824 |
return null; |
|
825 |
} |
|
826 |
} |
|
827 |
||
828 |
/** optimization: To save allocating a new operand/operator stack |
|
829 |
* for every binary operation, we use supplys. |
|
830 |
*/ |
|
831 |
ListBuffer<JCExpression[]> odStackSupply = new ListBuffer<JCExpression[]>(); |
|
832 |
ListBuffer<Token[]> opStackSupply = new ListBuffer<Token[]>(); |
|
833 |
||
834 |
private JCExpression[] newOdStack() { |
|
835 |
if (odStackSupply.elems == odStackSupply.last) |
|
836 |
odStackSupply.append(new JCExpression[infixPrecedenceLevels + 1]); |
|
837 |
JCExpression[] odStack = odStackSupply.elems.head; |
|
838 |
odStackSupply.elems = odStackSupply.elems.tail; |
|
839 |
return odStack; |
|
840 |
} |
|
841 |
||
842 |
private Token[] newOpStack() { |
|
843 |
if (opStackSupply.elems == opStackSupply.last) |
|
844 |
opStackSupply.append(new Token[infixPrecedenceLevels + 1]); |
|
845 |
Token[] opStack = opStackSupply.elems.head; |
|
846 |
opStackSupply.elems = opStackSupply.elems.tail; |
|
847 |
return opStack; |
|
848 |
} |
|
849 |
||
850 |
/** Expression3 = PrefixOp Expression3 |
|
851 |
* | "(" Expr | TypeNoParams ")" Expression3 |
|
852 |
* | Primary {Selector} {PostfixOp} |
|
853 |
* Primary = "(" Expression ")" |
|
854 |
* | Literal |
|
855 |
* | [TypeArguments] THIS [Arguments] |
|
856 |
* | [TypeArguments] SUPER SuperSuffix |
|
857 |
* | NEW [TypeArguments] Creator |
|
7072 | 858 |
* | Ident { "." Ident } |
859 |
* [ "[" ( "]" BracketsOpt "." CLASS | Expression "]" ) |
|
10 | 860 |
* | Arguments |
861 |
* | "." ( CLASS | THIS | [TypeArguments] SUPER Arguments | NEW [TypeArguments] InnerCreator ) |
|
862 |
* ] |
|
863 |
* | BasicType BracketsOpt "." CLASS |
|
864 |
* PrefixOp = "++" | "--" | "!" | "~" | "+" | "-" |
|
865 |
* PostfixOp = "++" | "--" |
|
866 |
* Type3 = Ident { "." Ident } [TypeArguments] {TypeSelector} BracketsOpt |
|
867 |
* | BasicType |
|
868 |
* TypeNoParams3 = Ident { "." Ident } BracketsOpt |
|
869 |
* Selector = "." [TypeArguments] Ident [Arguments] |
|
870 |
* | "." THIS |
|
871 |
* | "." [TypeArguments] SUPER SuperSuffix |
|
872 |
* | "." NEW [TypeArguments] InnerCreator |
|
873 |
* | "[" Expression "]" |
|
874 |
* TypeSelector = "." Ident [TypeArguments] |
|
875 |
* SuperSuffix = Arguments | "." Ident [Arguments] |
|
876 |
*/ |
|
877 |
protected JCExpression term3() { |
|
10815 | 878 |
int pos = token.pos; |
10 | 879 |
JCExpression t; |
880 |
List<JCExpression> typeArgs = typeArgumentsOpt(EXPR); |
|
10815 | 881 |
switch (token.kind) { |
10 | 882 |
case QUES: |
883 |
if ((mode & TYPE) != 0 && (mode & (TYPEARG|NOPARAMS)) == TYPEARG) { |
|
884 |
mode = TYPE; |
|
885 |
return typeArgument(); |
|
886 |
} else |
|
887 |
return illegal(); |
|
888 |
case PLUSPLUS: case SUBSUB: case BANG: case TILDE: case PLUS: case SUB: |
|
889 |
if (typeArgs == null && (mode & EXPR) != 0) { |
|
10815 | 890 |
TokenKind tk = token.kind; |
891 |
nextToken(); |
|
10 | 892 |
mode = EXPR; |
10815 | 893 |
if (tk == SUB && |
894 |
(token.kind == INTLITERAL || token.kind == LONGLITERAL) && |
|
895 |
token.radix() == 10) { |
|
10 | 896 |
mode = EXPR; |
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
897 |
t = literal(names.hyphen, pos); |
10 | 898 |
} else { |
899 |
t = term3(); |
|
10815 | 900 |
return F.at(pos).Unary(unoptag(tk), t); |
10 | 901 |
} |
902 |
} else return illegal(); |
|
903 |
break; |
|
904 |
case LPAREN: |
|
905 |
if (typeArgs == null && (mode & EXPR) != 0) { |
|
10815 | 906 |
nextToken(); |
10 | 907 |
mode = EXPR | TYPE | NOPARAMS; |
908 |
t = term3(); |
|
10815 | 909 |
if ((mode & TYPE) != 0 && token.kind == LT) { |
10 | 910 |
// Could be a cast to a parameterized type |
10950 | 911 |
JCTree.Tag op = JCTree.Tag.LT; |
10815 | 912 |
int pos1 = token.pos; |
913 |
nextToken(); |
|
10 | 914 |
mode &= (EXPR | TYPE); |
915 |
mode |= TYPEARG; |
|
916 |
JCExpression t1 = term3(); |
|
917 |
if ((mode & TYPE) != 0 && |
|
10815 | 918 |
(token.kind == COMMA || token.kind == GT)) { |
10 | 919 |
mode = TYPE; |
920 |
ListBuffer<JCExpression> args = new ListBuffer<JCExpression>(); |
|
921 |
args.append(t1); |
|
10815 | 922 |
while (token.kind == COMMA) { |
923 |
nextToken(); |
|
10 | 924 |
args.append(typeArgument()); |
925 |
} |
|
926 |
accept(GT); |
|
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
927 |
t = toP(F.at(pos1).TypeApply(t, args.toList())); |
10 | 928 |
checkGenerics(); |
10815 | 929 |
while (token.kind == DOT) { |
930 |
nextToken(); |
|
1790
7182011ee8a6
6665356: Cast not allowed when both qualifying type and inner class are parameterized
mcimadamore
parents:
1260
diff
changeset
|
931 |
mode = TYPE; |
10815 | 932 |
t = toP(F.at(token.pos).Select(t, ident())); |
1790
7182011ee8a6
6665356: Cast not allowed when both qualifying type and inner class are parameterized
mcimadamore
parents:
1260
diff
changeset
|
933 |
t = typeArgumentsOpt(t); |
7182011ee8a6
6665356: Cast not allowed when both qualifying type and inner class are parameterized
mcimadamore
parents:
1260
diff
changeset
|
934 |
} |
1867
0a3af3ae0d8e
6795580: parser confused by square brackets in qualified generic cast
mcimadamore
parents:
1790
diff
changeset
|
935 |
t = bracketsOpt(toP(t)); |
10 | 936 |
} else if ((mode & EXPR) != 0) { |
937 |
mode = EXPR; |
|
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
938 |
JCExpression e = term2Rest(t1, TreeInfo.shiftPrec); |
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
939 |
t = F.at(pos1).Binary(op, t, e); |
10 | 940 |
t = termRest(term1Rest(term2Rest(t, TreeInfo.orPrec))); |
941 |
} else { |
|
942 |
accept(GT); |
|
943 |
} |
|
1790
7182011ee8a6
6665356: Cast not allowed when both qualifying type and inner class are parameterized
mcimadamore
parents:
1260
diff
changeset
|
944 |
} |
7182011ee8a6
6665356: Cast not allowed when both qualifying type and inner class are parameterized
mcimadamore
parents:
1260
diff
changeset
|
945 |
else { |
10 | 946 |
t = termRest(term1Rest(term2Rest(t, TreeInfo.orPrec))); |
947 |
} |
|
948 |
accept(RPAREN); |
|
949 |
lastmode = mode; |
|
950 |
mode = EXPR; |
|
951 |
if ((lastmode & EXPR) == 0) { |
|
952 |
JCExpression t1 = term3(); |
|
953 |
return F.at(pos).TypeCast(t, t1); |
|
954 |
} else if ((lastmode & TYPE) != 0) { |
|
10815 | 955 |
switch (token.kind) { |
10 | 956 |
/*case PLUSPLUS: case SUBSUB: */ |
957 |
case BANG: case TILDE: |
|
958 |
case LPAREN: case THIS: case SUPER: |
|
959 |
case INTLITERAL: case LONGLITERAL: case FLOATLITERAL: |
|
960 |
case DOUBLELITERAL: case CHARLITERAL: case STRINGLITERAL: |
|
961 |
case TRUE: case FALSE: case NULL: |
|
962 |
case NEW: case IDENTIFIER: case ASSERT: case ENUM: |
|
963 |
case BYTE: case SHORT: case CHAR: case INT: |
|
964 |
case LONG: case FLOAT: case DOUBLE: case BOOLEAN: case VOID: |
|
965 |
JCExpression t1 = term3(); |
|
966 |
return F.at(pos).TypeCast(t, t1); |
|
967 |
} |
|
968 |
} |
|
969 |
} else return illegal(); |
|
970 |
t = toP(F.at(pos).Parens(t)); |
|
971 |
break; |
|
972 |
case THIS: |
|
973 |
if ((mode & EXPR) != 0) { |
|
974 |
mode = EXPR; |
|
975 |
t = to(F.at(pos).Ident(names._this)); |
|
10815 | 976 |
nextToken(); |
10 | 977 |
if (typeArgs == null) |
978 |
t = argumentsOpt(null, t); |
|
979 |
else |
|
980 |
t = arguments(typeArgs, t); |
|
981 |
typeArgs = null; |
|
982 |
} else return illegal(); |
|
983 |
break; |
|
984 |
case SUPER: |
|
985 |
if ((mode & EXPR) != 0) { |
|
986 |
mode = EXPR; |
|
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
987 |
t = to(F.at(pos).Ident(names._super)); |
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
988 |
t = superSuffix(typeArgs, t); |
10 | 989 |
typeArgs = null; |
990 |
} else return illegal(); |
|
991 |
break; |
|
992 |
case INTLITERAL: case LONGLITERAL: case FLOATLITERAL: case DOUBLELITERAL: |
|
993 |
case CHARLITERAL: case STRINGLITERAL: |
|
994 |
case TRUE: case FALSE: case NULL: |
|
995 |
if (typeArgs == null && (mode & EXPR) != 0) { |
|
996 |
mode = EXPR; |
|
997 |
t = literal(names.empty); |
|
998 |
} else return illegal(); |
|
999 |
break; |
|
1000 |
case NEW: |
|
1001 |
if (typeArgs != null) return illegal(); |
|
1002 |
if ((mode & EXPR) != 0) { |
|
1003 |
mode = EXPR; |
|
10815 | 1004 |
nextToken(); |
1005 |
if (token.kind == LT) typeArgs = typeArguments(false); |
|
10 | 1006 |
t = creator(pos, typeArgs); |
1007 |
typeArgs = null; |
|
1008 |
} else return illegal(); |
|
1009 |
break; |
|
1010 |
case IDENTIFIER: case ASSERT: case ENUM: |
|
1011 |
if (typeArgs != null) return illegal(); |
|
10815 | 1012 |
t = toP(F.at(token.pos).Ident(ident())); |
10 | 1013 |
loop: while (true) { |
10815 | 1014 |
pos = token.pos; |
1015 |
switch (token.kind) { |
|
10 | 1016 |
case LBRACKET: |
10815 | 1017 |
nextToken(); |
1018 |
if (token.kind == RBRACKET) { |
|
1019 |
nextToken(); |
|
7072 | 1020 |
t = bracketsOpt(t); |
10 | 1021 |
t = toP(F.at(pos).TypeArray(t)); |
1022 |
t = bracketsSuffix(t); |
|
1023 |
} else { |
|
1024 |
if ((mode & EXPR) != 0) { |
|
1025 |
mode = EXPR; |
|
1026 |
JCExpression t1 = term(); |
|
1027 |
t = to(F.at(pos).Indexed(t, t1)); |
|
1028 |
} |
|
1029 |
accept(RBRACKET); |
|
1030 |
} |
|
1031 |
break loop; |
|
1032 |
case LPAREN: |
|
1033 |
if ((mode & EXPR) != 0) { |
|
1034 |
mode = EXPR; |
|
1035 |
t = arguments(typeArgs, t); |
|
1036 |
typeArgs = null; |
|
1037 |
} |
|
1038 |
break loop; |
|
1039 |
case DOT: |
|
10815 | 1040 |
nextToken(); |
510
8d0b2c7d60a1
6481655: Parser confused by combination of parens and explicit type args
mcimadamore
parents:
10
diff
changeset
|
1041 |
int oldmode = mode; |
8d0b2c7d60a1
6481655: Parser confused by combination of parens and explicit type args
mcimadamore
parents:
10
diff
changeset
|
1042 |
mode &= ~NOPARAMS; |
10 | 1043 |
typeArgs = typeArgumentsOpt(EXPR); |
510
8d0b2c7d60a1
6481655: Parser confused by combination of parens and explicit type args
mcimadamore
parents:
10
diff
changeset
|
1044 |
mode = oldmode; |
10 | 1045 |
if ((mode & EXPR) != 0) { |
10815 | 1046 |
switch (token.kind) { |
10 | 1047 |
case CLASS: |
1048 |
if (typeArgs != null) return illegal(); |
|
1049 |
mode = EXPR; |
|
1050 |
t = to(F.at(pos).Select(t, names._class)); |
|
10815 | 1051 |
nextToken(); |
10 | 1052 |
break loop; |
1053 |
case THIS: |
|
1054 |
if (typeArgs != null) return illegal(); |
|
1055 |
mode = EXPR; |
|
1056 |
t = to(F.at(pos).Select(t, names._this)); |
|
10815 | 1057 |
nextToken(); |
10 | 1058 |
break loop; |
1059 |
case SUPER: |
|
1060 |
mode = EXPR; |
|
1061 |
t = to(F.at(pos).Select(t, names._super)); |
|
1062 |
t = superSuffix(typeArgs, t); |
|
1063 |
typeArgs = null; |
|
1064 |
break loop; |
|
1065 |
case NEW: |
|
1066 |
if (typeArgs != null) return illegal(); |
|
1067 |
mode = EXPR; |
|
10815 | 1068 |
int pos1 = token.pos; |
1069 |
nextToken(); |
|
1070 |
if (token.kind == LT) typeArgs = typeArguments(false); |
|
10 | 1071 |
t = innerCreator(pos1, typeArgs, t); |
1072 |
typeArgs = null; |
|
1073 |
break loop; |
|
1074 |
} |
|
1075 |
} |
|
1076 |
// typeArgs saved for next loop iteration. |
|
1077 |
t = toP(F.at(pos).Select(t, ident())); |
|
1078 |
break; |
|
1079 |
default: |
|
1080 |
break loop; |
|
1081 |
} |
|
1082 |
} |
|
1083 |
if (typeArgs != null) illegal(); |
|
1084 |
t = typeArgumentsOpt(t); |
|
1085 |
break; |
|
1086 |
case BYTE: case SHORT: case CHAR: case INT: case LONG: case FLOAT: |
|
1087 |
case DOUBLE: case BOOLEAN: |
|
1088 |
if (typeArgs != null) illegal(); |
|
1089 |
t = bracketsSuffix(bracketsOpt(basicType())); |
|
1090 |
break; |
|
1091 |
case VOID: |
|
1092 |
if (typeArgs != null) illegal(); |
|
1093 |
if ((mode & EXPR) != 0) { |
|
10815 | 1094 |
nextToken(); |
1095 |
if (token.kind == DOT) { |
|
10 | 1096 |
JCPrimitiveTypeTree ti = toP(F.at(pos).TypeIdent(TypeTags.VOID)); |
1097 |
t = bracketsSuffix(ti); |
|
1098 |
} else { |
|
1099 |
return illegal(pos); |
|
1100 |
} |
|
1101 |
} else { |
|
2723
b659ca23d5f5
6829189: Java programming with JSR 292 needs language support
jrose
parents:
2212
diff
changeset
|
1102 |
// Support the corner case of myMethodHandle.<void>invoke() by passing |
b659ca23d5f5
6829189: Java programming with JSR 292 needs language support
jrose
parents:
2212
diff
changeset
|
1103 |
// a void type (like other primitive types) to the next phase. |
b659ca23d5f5
6829189: Java programming with JSR 292 needs language support
jrose
parents:
2212
diff
changeset
|
1104 |
// The error will be reported in Attr.attribTypes or Attr.visitApply. |
b659ca23d5f5
6829189: Java programming with JSR 292 needs language support
jrose
parents:
2212
diff
changeset
|
1105 |
JCPrimitiveTypeTree ti = to(F.at(pos).TypeIdent(TypeTags.VOID)); |
10815 | 1106 |
nextToken(); |
2723
b659ca23d5f5
6829189: Java programming with JSR 292 needs language support
jrose
parents:
2212
diff
changeset
|
1107 |
return ti; |
b659ca23d5f5
6829189: Java programming with JSR 292 needs language support
jrose
parents:
2212
diff
changeset
|
1108 |
//return illegal(); |
10 | 1109 |
} |
1110 |
break; |
|
1111 |
default: |
|
1112 |
return illegal(); |
|
1113 |
} |
|
1114 |
if (typeArgs != null) illegal(); |
|
1115 |
while (true) { |
|
10815 | 1116 |
int pos1 = token.pos; |
1117 |
if (token.kind == LBRACKET) { |
|
1118 |
nextToken(); |
|
10 | 1119 |
if ((mode & TYPE) != 0) { |
1120 |
int oldmode = mode; |
|
1121 |
mode = TYPE; |
|
10815 | 1122 |
if (token.kind == RBRACKET) { |
1123 |
nextToken(); |
|
7072 | 1124 |
t = bracketsOpt(t); |
10 | 1125 |
t = toP(F.at(pos1).TypeArray(t)); |
1126 |
return t; |
|
1127 |
} |
|
1128 |
mode = oldmode; |
|
1129 |
} |
|
1130 |
if ((mode & EXPR) != 0) { |
|
1131 |
mode = EXPR; |
|
1132 |
JCExpression t1 = term(); |
|
1133 |
t = to(F.at(pos1).Indexed(t, t1)); |
|
1134 |
} |
|
1135 |
accept(RBRACKET); |
|
10815 | 1136 |
} else if (token.kind == DOT) { |
1137 |
nextToken(); |
|
10 | 1138 |
typeArgs = typeArgumentsOpt(EXPR); |
10815 | 1139 |
if (token.kind == SUPER && (mode & EXPR) != 0) { |
10 | 1140 |
mode = EXPR; |
1141 |
t = to(F.at(pos1).Select(t, names._super)); |
|
10815 | 1142 |
nextToken(); |
10 | 1143 |
t = arguments(typeArgs, t); |
1144 |
typeArgs = null; |
|
10815 | 1145 |
} else if (token.kind == NEW && (mode & EXPR) != 0) { |
10 | 1146 |
if (typeArgs != null) return illegal(); |
1147 |
mode = EXPR; |
|
10815 | 1148 |
int pos2 = token.pos; |
1149 |
nextToken(); |
|
1150 |
if (token.kind == LT) typeArgs = typeArguments(false); |
|
10 | 1151 |
t = innerCreator(pos2, typeArgs, t); |
1152 |
typeArgs = null; |
|
1153 |
} else { |
|
1154 |
t = toP(F.at(pos1).Select(t, ident())); |
|
1155 |
t = argumentsOpt(typeArgs, typeArgumentsOpt(t)); |
|
1156 |
typeArgs = null; |
|
1157 |
} |
|
1158 |
} else { |
|
1159 |
break; |
|
1160 |
} |
|
1161 |
} |
|
10815 | 1162 |
while ((token.kind == PLUSPLUS || token.kind == SUBSUB) && (mode & EXPR) != 0) { |
10 | 1163 |
mode = EXPR; |
10815 | 1164 |
t = to(F.at(token.pos).Unary( |
10950 | 1165 |
token.kind == PLUSPLUS ? POSTINC : POSTDEC, t)); |
10815 | 1166 |
nextToken(); |
10 | 1167 |
} |
1168 |
return toP(t); |
|
1169 |
} |
|
1170 |
||
1171 |
/** SuperSuffix = Arguments | "." [TypeArguments] Ident [Arguments] |
|
1172 |
*/ |
|
1173 |
JCExpression superSuffix(List<JCExpression> typeArgs, JCExpression t) { |
|
10815 | 1174 |
nextToken(); |
1175 |
if (token.kind == LPAREN || typeArgs != null) { |
|
10 | 1176 |
t = arguments(typeArgs, t); |
1177 |
} else { |
|
10815 | 1178 |
int pos = token.pos; |
10 | 1179 |
accept(DOT); |
10815 | 1180 |
typeArgs = (token.kind == LT) ? typeArguments(false) : null; |
10 | 1181 |
t = toP(F.at(pos).Select(t, ident())); |
1182 |
t = argumentsOpt(typeArgs, t); |
|
1183 |
} |
|
1184 |
return t; |
|
1185 |
} |
|
1186 |
||
1187 |
/** BasicType = BYTE | SHORT | CHAR | INT | LONG | FLOAT | DOUBLE | BOOLEAN |
|
1188 |
*/ |
|
1189 |
JCPrimitiveTypeTree basicType() { |
|
10815 | 1190 |
JCPrimitiveTypeTree t = to(F.at(token.pos).TypeIdent(typetag(token.kind))); |
1191 |
nextToken(); |
|
10 | 1192 |
return t; |
1193 |
} |
|
1194 |
||
1195 |
/** ArgumentsOpt = [ Arguments ] |
|
1196 |
*/ |
|
1197 |
JCExpression argumentsOpt(List<JCExpression> typeArgs, JCExpression t) { |
|
10815 | 1198 |
if ((mode & EXPR) != 0 && token.kind == LPAREN || typeArgs != null) { |
10 | 1199 |
mode = EXPR; |
1200 |
return arguments(typeArgs, t); |
|
1201 |
} else { |
|
1202 |
return t; |
|
1203 |
} |
|
1204 |
} |
|
1205 |
||
1206 |
/** Arguments = "(" [Expression { COMMA Expression }] ")" |
|
1207 |
*/ |
|
1208 |
List<JCExpression> arguments() { |
|
1209 |
ListBuffer<JCExpression> args = lb(); |
|
10815 | 1210 |
if (token.kind == LPAREN) { |
1211 |
nextToken(); |
|
1212 |
if (token.kind != RPAREN) { |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1213 |
args.append(parseExpression()); |
10815 | 1214 |
while (token.kind == COMMA) { |
1215 |
nextToken(); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1216 |
args.append(parseExpression()); |
10 | 1217 |
} |
1218 |
} |
|
1219 |
accept(RPAREN); |
|
1220 |
} else { |
|
10815 | 1221 |
syntaxError(token.pos, "expected", LPAREN); |
10 | 1222 |
} |
1223 |
return args.toList(); |
|
1224 |
} |
|
1225 |
||
1226 |
JCMethodInvocation arguments(List<JCExpression> typeArgs, JCExpression t) { |
|
10815 | 1227 |
int pos = token.pos; |
10 | 1228 |
List<JCExpression> args = arguments(); |
1229 |
return toP(F.at(pos).Apply(typeArgs, t, args)); |
|
1230 |
} |
|
1231 |
||
1232 |
/** TypeArgumentsOpt = [ TypeArguments ] |
|
1233 |
*/ |
|
1234 |
JCExpression typeArgumentsOpt(JCExpression t) { |
|
10815 | 1235 |
if (token.kind == LT && |
10 | 1236 |
(mode & TYPE) != 0 && |
1237 |
(mode & NOPARAMS) == 0) { |
|
1238 |
mode = TYPE; |
|
1239 |
checkGenerics(); |
|
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1240 |
return typeArguments(t, false); |
10 | 1241 |
} else { |
1242 |
return t; |
|
1243 |
} |
|
1244 |
} |
|
1245 |
List<JCExpression> typeArgumentsOpt() { |
|
1246 |
return typeArgumentsOpt(TYPE); |
|
1247 |
} |
|
1248 |
||
1249 |
List<JCExpression> typeArgumentsOpt(int useMode) { |
|
10815 | 1250 |
if (token.kind == LT) { |
10 | 1251 |
checkGenerics(); |
1252 |
if ((mode & useMode) == 0 || |
|
1253 |
(mode & NOPARAMS) != 0) { |
|
1254 |
illegal(); |
|
1255 |
} |
|
1256 |
mode = useMode; |
|
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1257 |
return typeArguments(false); |
10 | 1258 |
} |
1259 |
return null; |
|
1260 |
} |
|
1261 |
||
1262 |
/** TypeArguments = "<" TypeArgument {"," TypeArgument} ">" |
|
1263 |
*/ |
|
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1264 |
List<JCExpression> typeArguments(boolean diamondAllowed) { |
10815 | 1265 |
if (token.kind == LT) { |
1266 |
nextToken(); |
|
1267 |
if (token.kind == GT && diamondAllowed) { |
|
5321
c8efe769cb3b
6939620: Switch to 'complex' diamond inference scheme
mcimadamore
parents:
5320
diff
changeset
|
1268 |
checkDiamond(); |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1269 |
mode |= DIAMOND; |
10815 | 1270 |
nextToken(); |
5321
c8efe769cb3b
6939620: Switch to 'complex' diamond inference scheme
mcimadamore
parents:
5320
diff
changeset
|
1271 |
return List.nil(); |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1272 |
} else { |
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1273 |
ListBuffer<JCExpression> args = ListBuffer.lb(); |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1274 |
args.append(((mode & EXPR) == 0) ? typeArgument() : parseType()); |
10815 | 1275 |
while (token.kind == COMMA) { |
1276 |
nextToken(); |
|
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1277 |
args.append(((mode & EXPR) == 0) ? typeArgument() : parseType()); |
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1278 |
} |
10815 | 1279 |
switch (token.kind) { |
1280 |
||
1281 |
case GTGTGTEQ: case GTGTEQ: case GTEQ: |
|
1282 |
case GTGTGT: case GTGT: |
|
1283 |
token = S.split(); |
|
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1284 |
break; |
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1285 |
case GT: |
10815 | 1286 |
nextToken(); |
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1287 |
break; |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1288 |
default: |
10815 | 1289 |
args.append(syntaxError(token.pos, "expected", GT)); |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1290 |
break; |
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1291 |
} |
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1292 |
return args.toList(); |
10 | 1293 |
} |
1294 |
} else { |
|
10815 | 1295 |
return List.<JCExpression>of(syntaxError(token.pos, "expected", LT)); |
10 | 1296 |
} |
1297 |
} |
|
1298 |
||
1299 |
/** TypeArgument = Type |
|
7072 | 1300 |
* | "?" |
1301 |
* | "?" EXTENDS Type {"&" Type} |
|
1302 |
* | "?" SUPER Type |
|
10 | 1303 |
*/ |
1304 |
JCExpression typeArgument() { |
|
10815 | 1305 |
if (token.kind != QUES) return parseType(); |
1306 |
int pos = token.pos; |
|
1307 |
nextToken(); |
|
1308 |
if (token.kind == EXTENDS) { |
|
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
1309 |
TypeBoundKind t = to(F.at(pos).TypeBoundKind(BoundKind.EXTENDS)); |
10815 | 1310 |
nextToken(); |
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
1311 |
JCExpression bound = parseType(); |
7072 | 1312 |
return F.at(pos).Wildcard(t, bound); |
10815 | 1313 |
} else if (token.kind == SUPER) { |
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
1314 |
TypeBoundKind t = to(F.at(pos).TypeBoundKind(BoundKind.SUPER)); |
10815 | 1315 |
nextToken(); |
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
1316 |
JCExpression bound = parseType(); |
7072 | 1317 |
return F.at(pos).Wildcard(t, bound); |
10815 | 1318 |
} else if (token.kind == IDENTIFIER) { |
10 | 1319 |
//error recovery |
1320 |
TypeBoundKind t = F.at(Position.NOPOS).TypeBoundKind(BoundKind.UNBOUND); |
|
1321 |
JCExpression wc = toP(F.at(pos).Wildcard(t, null)); |
|
10815 | 1322 |
JCIdent id = toP(F.at(token.pos).Ident(ident())); |
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1323 |
JCErroneous err = F.at(pos).Erroneous(List.<JCTree>of(wc, id)); |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1324 |
reportSyntaxError(err, "expected3", GT, EXTENDS, SUPER); |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1325 |
return err; |
10 | 1326 |
} else { |
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
1327 |
TypeBoundKind t = toP(F.at(pos).TypeBoundKind(BoundKind.UNBOUND)); |
7072 | 1328 |
return toP(F.at(pos).Wildcard(t, null)); |
10 | 1329 |
} |
1330 |
} |
|
1331 |
||
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1332 |
JCTypeApply typeArguments(JCExpression t, boolean diamondAllowed) { |
10815 | 1333 |
int pos = token.pos; |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1334 |
List<JCExpression> args = typeArguments(diamondAllowed); |
10 | 1335 |
return toP(F.at(pos).TypeApply(t, args)); |
1336 |
} |
|
1337 |
||
7072 | 1338 |
/** BracketsOpt = {"[" "]"} |
10 | 1339 |
*/ |
7072 | 1340 |
private JCExpression bracketsOpt(JCExpression t) { |
10815 | 1341 |
if (token.kind == LBRACKET) { |
1342 |
int pos = token.pos; |
|
1343 |
nextToken(); |
|
7072 | 1344 |
t = bracketsOptCont(t, pos); |
1345 |
F.at(pos); |
|
10 | 1346 |
} |
1347 |
return t; |
|
1348 |
} |
|
1349 |
||
7072 | 1350 |
private JCArrayTypeTree bracketsOptCont(JCExpression t, int pos) { |
10 | 1351 |
accept(RBRACKET); |
7072 | 1352 |
t = bracketsOpt(t); |
10 | 1353 |
return toP(F.at(pos).TypeArray(t)); |
1354 |
} |
|
1355 |
||
1356 |
/** BracketsSuffixExpr = "." CLASS |
|
1357 |
* BracketsSuffixType = |
|
1358 |
*/ |
|
1359 |
JCExpression bracketsSuffix(JCExpression t) { |
|
10815 | 1360 |
if ((mode & EXPR) != 0 && token.kind == DOT) { |
10 | 1361 |
mode = EXPR; |
10815 | 1362 |
int pos = token.pos; |
1363 |
nextToken(); |
|
10 | 1364 |
accept(CLASS); |
10815 | 1365 |
if (token.pos == errorEndPos) { |
10 | 1366 |
// error recovery |
1367 |
Name name = null; |
|
10815 | 1368 |
if (token.kind == IDENTIFIER) { |
1369 |
name = token.name(); |
|
1370 |
nextToken(); |
|
10 | 1371 |
} else { |
1372 |
name = names.error; |
|
1373 |
} |
|
1374 |
t = F.at(pos).Erroneous(List.<JCTree>of(toP(F.at(pos).Select(t, name)))); |
|
1375 |
} else { |
|
1376 |
t = toP(F.at(pos).Select(t, names._class)); |
|
1377 |
} |
|
1378 |
} else if ((mode & TYPE) != 0) { |
|
1379 |
mode = TYPE; |
|
1380 |
} else { |
|
10815 | 1381 |
syntaxError(token.pos, "dot.class.expected"); |
10 | 1382 |
} |
1383 |
return t; |
|
1384 |
} |
|
1385 |
||
7072 | 1386 |
/** Creator = Qualident [TypeArguments] ( ArrayCreatorRest | ClassCreatorRest ) |
10 | 1387 |
*/ |
1388 |
JCExpression creator(int newpos, List<JCExpression> typeArgs) { |
|
10815 | 1389 |
switch (token.kind) { |
10 | 1390 |
case BYTE: case SHORT: case CHAR: case INT: case LONG: case FLOAT: |
1391 |
case DOUBLE: case BOOLEAN: |
|
7072 | 1392 |
if (typeArgs == null) |
1393 |
return arrayCreatorRest(newpos, basicType()); |
|
10 | 1394 |
break; |
1395 |
default: |
|
1396 |
} |
|
1397 |
JCExpression t = qualident(); |
|
1398 |
int oldmode = mode; |
|
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1399 |
mode = TYPE; |
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1400 |
boolean diamondFound = false; |
10199
48bd09ecc88a
7057297: Project Coin: diamond erroneously accepts in array initializer expressions
mcimadamore
parents:
9300
diff
changeset
|
1401 |
int lastTypeargsPos = -1; |
10815 | 1402 |
if (token.kind == LT) { |
10 | 1403 |
checkGenerics(); |
10815 | 1404 |
lastTypeargsPos = token.pos; |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1405 |
t = typeArguments(t, true); |
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1406 |
diamondFound = (mode & DIAMOND) != 0; |
10 | 1407 |
} |
10815 | 1408 |
while (token.kind == DOT) { |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1409 |
if (diamondFound) { |
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1410 |
//cannot select after a diamond |
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1411 |
illegal(); |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1412 |
} |
10815 | 1413 |
int pos = token.pos; |
1414 |
nextToken(); |
|
10 | 1415 |
t = toP(F.at(pos).Select(t, ident())); |
10815 | 1416 |
if (token.kind == LT) { |
1417 |
lastTypeargsPos = token.pos; |
|
10 | 1418 |
checkGenerics(); |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1419 |
t = typeArguments(t, true); |
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1420 |
diamondFound = (mode & DIAMOND) != 0; |
10 | 1421 |
} |
1422 |
} |
|
1423 |
mode = oldmode; |
|
10815 | 1424 |
if (token.kind == LBRACKET) { |
10 | 1425 |
JCExpression e = arrayCreatorRest(newpos, t); |
10199
48bd09ecc88a
7057297: Project Coin: diamond erroneously accepts in array initializer expressions
mcimadamore
parents:
9300
diff
changeset
|
1426 |
if (diamondFound) { |
48bd09ecc88a
7057297: Project Coin: diamond erroneously accepts in array initializer expressions
mcimadamore
parents:
9300
diff
changeset
|
1427 |
reportSyntaxError(lastTypeargsPos, "cannot.create.array.with.diamond"); |
48bd09ecc88a
7057297: Project Coin: diamond erroneously accepts in array initializer expressions
mcimadamore
parents:
9300
diff
changeset
|
1428 |
return toP(F.at(newpos).Erroneous(List.of(e))); |
48bd09ecc88a
7057297: Project Coin: diamond erroneously accepts in array initializer expressions
mcimadamore
parents:
9300
diff
changeset
|
1429 |
} |
48bd09ecc88a
7057297: Project Coin: diamond erroneously accepts in array initializer expressions
mcimadamore
parents:
9300
diff
changeset
|
1430 |
else if (typeArgs != null) { |
10 | 1431 |
int pos = newpos; |
1432 |
if (!typeArgs.isEmpty() && typeArgs.head.pos != Position.NOPOS) { |
|
1433 |
// note: this should always happen but we should |
|
1434 |
// not rely on this as the parser is continuously |
|
1435 |
// modified to improve error recovery. |
|
1436 |
pos = typeArgs.head.pos; |
|
1437 |
} |
|
10815 | 1438 |
setErrorEndPos(S.prevToken().endPos); |
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1439 |
JCErroneous err = F.at(pos).Erroneous(typeArgs.prepend(e)); |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1440 |
reportSyntaxError(err, "cannot.create.array.with.type.arguments"); |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1441 |
return toP(err); |
10 | 1442 |
} |
1443 |
return e; |
|
10815 | 1444 |
} else if (token.kind == LPAREN) { |
7072 | 1445 |
return classCreatorRest(newpos, null, typeArgs, t); |
10 | 1446 |
} else { |
10815 | 1447 |
setErrorEndPos(token.pos); |
1448 |
reportSyntaxError(token.pos, "expected2", LPAREN, LBRACKET); |
|
10 | 1449 |
t = toP(F.at(newpos).NewClass(null, typeArgs, t, List.<JCExpression>nil(), null)); |
1450 |
return toP(F.at(newpos).Erroneous(List.<JCTree>of(t))); |
|
1451 |
} |
|
1452 |
} |
|
1453 |
||
1454 |
/** InnerCreator = Ident [TypeArguments] ClassCreatorRest |
|
1455 |
*/ |
|
1456 |
JCExpression innerCreator(int newpos, List<JCExpression> typeArgs, JCExpression encl) { |
|
10815 | 1457 |
JCExpression t = toP(F.at(token.pos).Ident(ident())); |
1458 |
if (token.kind == LT) { |
|
5321
c8efe769cb3b
6939620: Switch to 'complex' diamond inference scheme
mcimadamore
parents:
5320
diff
changeset
|
1459 |
int oldmode = mode; |
10 | 1460 |
checkGenerics(); |
9073
a29adf86aa0c
7030687: Diamond: compiler accepts erroneous code where diamond is used with non-generic inner class
mcimadamore
parents:
8625
diff
changeset
|
1461 |
t = typeArguments(t, true); |
5321
c8efe769cb3b
6939620: Switch to 'complex' diamond inference scheme
mcimadamore
parents:
5320
diff
changeset
|
1462 |
mode = oldmode; |
10 | 1463 |
} |
1464 |
return classCreatorRest(newpos, encl, typeArgs, t); |
|
1465 |
} |
|
1466 |
||
7072 | 1467 |
/** ArrayCreatorRest = "[" ( "]" BracketsOpt ArrayInitializer |
1468 |
* | Expression "]" {"[" Expression "]"} BracketsOpt ) |
|
10 | 1469 |
*/ |
1470 |
JCExpression arrayCreatorRest(int newpos, JCExpression elemtype) { |
|
1471 |
accept(LBRACKET); |
|
10815 | 1472 |
if (token.kind == RBRACKET) { |
10 | 1473 |
accept(RBRACKET); |
7072 | 1474 |
elemtype = bracketsOpt(elemtype); |
10815 | 1475 |
if (token.kind == LBRACE) { |
7072 | 1476 |
return arrayInitializer(newpos, elemtype); |
10 | 1477 |
} else { |
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
1478 |
JCExpression t = toP(F.at(newpos).NewArray(elemtype, List.<JCExpression>nil(), null)); |
10815 | 1479 |
return syntaxError(token.pos, List.<JCTree>of(t), "array.dimension.missing"); |
10 | 1480 |
} |
1481 |
} else { |
|
1482 |
ListBuffer<JCExpression> dims = new ListBuffer<JCExpression>(); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1483 |
dims.append(parseExpression()); |
10 | 1484 |
accept(RBRACKET); |
10815 | 1485 |
while (token.kind == LBRACKET) { |
1486 |
int pos = token.pos; |
|
1487 |
nextToken(); |
|
1488 |
if (token.kind == RBRACKET) { |
|
7072 | 1489 |
elemtype = bracketsOptCont(elemtype, pos); |
10 | 1490 |
} else { |
7072 | 1491 |
dims.append(parseExpression()); |
1492 |
accept(RBRACKET); |
|
10 | 1493 |
} |
1494 |
} |
|
7072 | 1495 |
return toP(F.at(newpos).NewArray(elemtype, dims.toList(), null)); |
10 | 1496 |
} |
1497 |
} |
|
1498 |
||
1499 |
/** ClassCreatorRest = Arguments [ClassBody] |
|
1500 |
*/ |
|
3149 | 1501 |
JCNewClass classCreatorRest(int newpos, |
10 | 1502 |
JCExpression encl, |
1503 |
List<JCExpression> typeArgs, |
|
1504 |
JCExpression t) |
|
1505 |
{ |
|
1506 |
List<JCExpression> args = arguments(); |
|
1507 |
JCClassDecl body = null; |
|
10815 | 1508 |
if (token.kind == LBRACE) { |
1509 |
int pos = token.pos; |
|
10 | 1510 |
List<JCTree> defs = classOrInterfaceBody(names.empty, false); |
1511 |
JCModifiers mods = F.at(Position.NOPOS).Modifiers(0); |
|
1512 |
body = toP(F.at(pos).AnonymousClassDef(mods, defs)); |
|
1513 |
} |
|
1514 |
return toP(F.at(newpos).NewClass(encl, typeArgs, t, args, body)); |
|
1515 |
} |
|
1516 |
||
1517 |
/** ArrayInitializer = "{" [VariableInitializer {"," VariableInitializer}] [","] "}" |
|
1518 |
*/ |
|
1519 |
JCExpression arrayInitializer(int newpos, JCExpression t) { |
|
1520 |
accept(LBRACE); |
|
1521 |
ListBuffer<JCExpression> elems = new ListBuffer<JCExpression>(); |
|
10815 | 1522 |
if (token.kind == COMMA) { |
1523 |
nextToken(); |
|
1524 |
} else if (token.kind != RBRACE) { |
|
10 | 1525 |
elems.append(variableInitializer()); |
10815 | 1526 |
while (token.kind == COMMA) { |
1527 |
nextToken(); |
|
1528 |
if (token.kind == RBRACE) break; |
|
10 | 1529 |
elems.append(variableInitializer()); |
1530 |
} |
|
1531 |
} |
|
1532 |
accept(RBRACE); |
|
1533 |
return toP(F.at(newpos).NewArray(t, List.<JCExpression>nil(), elems.toList())); |
|
1534 |
} |
|
1535 |
||
1536 |
/** VariableInitializer = ArrayInitializer | Expression |
|
1537 |
*/ |
|
1538 |
public JCExpression variableInitializer() { |
|
10815 | 1539 |
return token.kind == LBRACE ? arrayInitializer(token.pos, null) : parseExpression(); |
10 | 1540 |
} |
1541 |
||
1542 |
/** ParExpression = "(" Expression ")" |
|
1543 |
*/ |
|
1544 |
JCExpression parExpression() { |
|
1545 |
accept(LPAREN); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1546 |
JCExpression t = parseExpression(); |
10 | 1547 |
accept(RPAREN); |
1548 |
return t; |
|
1549 |
} |
|
1550 |
||
1551 |
/** Block = "{" BlockStatements "}" |
|
1552 |
*/ |
|
1553 |
JCBlock block(int pos, long flags) { |
|
1554 |
accept(LBRACE); |
|
1555 |
List<JCStatement> stats = blockStatements(); |
|
1556 |
JCBlock t = F.at(pos).Block(flags, stats); |
|
10815 | 1557 |
while (token.kind == CASE || token.kind == DEFAULT) { |
1558 |
syntaxError("orphaned", token.kind); |
|
10 | 1559 |
switchBlockStatementGroups(); |
1560 |
} |
|
1561 |
// the Block node has a field "endpos" for first char of last token, which is |
|
1562 |
// usually but not necessarily the last char of the last token. |
|
10815 | 1563 |
t.endpos = token.pos; |
10 | 1564 |
accept(RBRACE); |
1565 |
return toP(t); |
|
1566 |
} |
|
1567 |
||
1568 |
public JCBlock block() { |
|
10815 | 1569 |
return block(token.pos, 0); |
10 | 1570 |
} |
1571 |
||
1572 |
/** BlockStatements = { BlockStatement } |
|
1573 |
* BlockStatement = LocalVariableDeclarationStatement |
|
1574 |
* | ClassOrInterfaceOrEnumDeclaration |
|
1575 |
* | [Ident ":"] Statement |
|
1576 |
* LocalVariableDeclarationStatement |
|
1577 |
* = { FINAL | '@' Annotation } Type VariableDeclarators ";" |
|
1578 |
*/ |
|
1579 |
@SuppressWarnings("fallthrough") |
|
1580 |
List<JCStatement> blockStatements() { |
|
1581 |
//todo: skip to anchor on error(?) |
|
1582 |
int lastErrPos = -1; |
|
1583 |
ListBuffer<JCStatement> stats = new ListBuffer<JCStatement>(); |
|
1584 |
while (true) { |
|
10815 | 1585 |
int pos = token.pos; |
1586 |
switch (token.kind) { |
|
10 | 1587 |
case RBRACE: case CASE: case DEFAULT: case EOF: |
1588 |
return stats.toList(); |
|
1589 |
case LBRACE: case IF: case FOR: case WHILE: case DO: case TRY: |
|
1590 |
case SWITCH: case SYNCHRONIZED: case RETURN: case THROW: case BREAK: |
|
1591 |
case CONTINUE: case SEMI: case ELSE: case FINALLY: case CATCH: |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1592 |
stats.append(parseStatement()); |
10 | 1593 |
break; |
1594 |
case MONKEYS_AT: |
|
1595 |
case FINAL: { |
|
10948 | 1596 |
String dc = token.comment(CommentStyle.JAVADOC); |
10 | 1597 |
JCModifiers mods = modifiersOpt(); |
10815 | 1598 |
if (token.kind == INTERFACE || |
1599 |
token.kind == CLASS || |
|
1600 |
allowEnums && token.kind == ENUM) { |
|
10 | 1601 |
stats.append(classOrInterfaceOrEnumDeclaration(mods, dc)); |
1602 |
} else { |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1603 |
JCExpression t = parseType(); |
10 | 1604 |
stats.appendList(variableDeclarators(mods, t, |
1605 |
new ListBuffer<JCStatement>())); |
|
1606 |
// A "LocalVariableDeclarationStatement" subsumes the terminating semicolon |
|
10815 | 1607 |
storeEnd(stats.elems.last(), token.endPos); |
10 | 1608 |
accept(SEMI); |
1609 |
} |
|
1610 |
break; |
|
1611 |
} |
|
1612 |
case ABSTRACT: case STRICTFP: { |
|
10948 | 1613 |
String dc = token.comment(CommentStyle.JAVADOC); |
10 | 1614 |
JCModifiers mods = modifiersOpt(); |
1615 |
stats.append(classOrInterfaceOrEnumDeclaration(mods, dc)); |
|
1616 |
break; |
|
1617 |
} |
|
1618 |
case INTERFACE: |
|
1619 |
case CLASS: |
|
10948 | 1620 |
String dc = token.comment(CommentStyle.JAVADOC); |
10815 | 1621 |
stats.append(classOrInterfaceOrEnumDeclaration(modifiersOpt(), dc)); |
10 | 1622 |
break; |
1623 |
case ENUM: |
|
1624 |
case ASSERT: |
|
10815 | 1625 |
if (allowEnums && token.kind == ENUM) { |
1626 |
error(token.pos, "local.enum"); |
|
10948 | 1627 |
dc = token.comment(CommentStyle.JAVADOC); |
10815 | 1628 |
stats.append(classOrInterfaceOrEnumDeclaration(modifiersOpt(), dc)); |
10 | 1629 |
break; |
10815 | 1630 |
} else if (allowAsserts && token.kind == ASSERT) { |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1631 |
stats.append(parseStatement()); |
10 | 1632 |
break; |
1633 |
} |
|
1634 |
/* fall through to default */ |
|
1635 |
default: |
|
10815 | 1636 |
Token prevToken = token; |
10 | 1637 |
JCExpression t = term(EXPR | TYPE); |
10950 | 1638 |
if (token.kind == COLON && t.hasTag(IDENT)) { |
10815 | 1639 |
nextToken(); |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1640 |
JCStatement stat = parseStatement(); |
10815 | 1641 |
stats.append(F.at(pos).Labelled(prevToken.name(), stat)); |
10 | 1642 |
} else if ((lastmode & TYPE) != 0 && |
10815 | 1643 |
(token.kind == IDENTIFIER || |
1644 |
token.kind == ASSERT || |
|
1645 |
token.kind == ENUM)) { |
|
1646 |
pos = token.pos; |
|
10 | 1647 |
JCModifiers mods = F.at(Position.NOPOS).Modifiers(0); |
1648 |
F.at(pos); |
|
1649 |
stats.appendList(variableDeclarators(mods, t, |
|
1650 |
new ListBuffer<JCStatement>())); |
|
1651 |
// A "LocalVariableDeclarationStatement" subsumes the terminating semicolon |
|
10815 | 1652 |
storeEnd(stats.elems.last(), token.endPos); |
10 | 1653 |
accept(SEMI); |
1654 |
} else { |
|
1655 |
// This Exec is an "ExpressionStatement"; it subsumes the terminating semicolon |
|
1656 |
stats.append(to(F.at(pos).Exec(checkExprStat(t)))); |
|
1657 |
accept(SEMI); |
|
1658 |
} |
|
1659 |
} |
|
1660 |
||
1661 |
// error recovery |
|
10815 | 1662 |
if (token.pos == lastErrPos) |
10 | 1663 |
return stats.toList(); |
10815 | 1664 |
if (token.pos <= errorEndPos) { |
10 | 1665 |
skip(false, true, true, true); |
10815 | 1666 |
lastErrPos = token.pos; |
10 | 1667 |
} |
1668 |
} |
|
1669 |
} |
|
1670 |
||
1671 |
/** Statement = |
|
1672 |
* Block |
|
1673 |
* | IF ParExpression Statement [ELSE Statement] |
|
1674 |
* | FOR "(" ForInitOpt ";" [Expression] ";" ForUpdateOpt ")" Statement |
|
1675 |
* | FOR "(" FormalParameter : Expression ")" Statement |
|
1676 |
* | WHILE ParExpression Statement |
|
1677 |
* | DO Statement WHILE ParExpression ";" |
|
1678 |
* | TRY Block ( Catches | [Catches] FinallyPart ) |
|
8234
5050975e2df0
7014734: Project Coin: Allow optional trailing semicolon to terminate resources list in try-with-resources
darcy
parents:
8224
diff
changeset
|
1679 |
* | TRY "(" ResourceSpecification ";"opt ")" Block [Catches] [FinallyPart] |
10 | 1680 |
* | SWITCH ParExpression "{" SwitchBlockStatementGroups "}" |
1681 |
* | SYNCHRONIZED ParExpression Block |
|
1682 |
* | RETURN [Expression] ";" |
|
1683 |
* | THROW Expression ";" |
|
1684 |
* | BREAK [Ident] ";" |
|
1685 |
* | CONTINUE [Ident] ";" |
|
1686 |
* | ASSERT Expression [ ":" Expression ] ";" |
|
1687 |
* | ";" |
|
1688 |
* | ExpressionStatement |
|
1689 |
* | Ident ":" Statement |
|
1690 |
*/ |
|
1691 |
@SuppressWarnings("fallthrough") |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1692 |
public JCStatement parseStatement() { |
10815 | 1693 |
int pos = token.pos; |
1694 |
switch (token.kind) { |
|
10 | 1695 |
case LBRACE: |
1696 |
return block(); |
|
1697 |
case IF: { |
|
10815 | 1698 |
nextToken(); |
10 | 1699 |
JCExpression cond = parExpression(); |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1700 |
JCStatement thenpart = parseStatement(); |
10 | 1701 |
JCStatement elsepart = null; |
10815 | 1702 |
if (token.kind == ELSE) { |
1703 |
nextToken(); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1704 |
elsepart = parseStatement(); |
10 | 1705 |
} |
1706 |
return F.at(pos).If(cond, thenpart, elsepart); |
|
1707 |
} |
|
1708 |
case FOR: { |
|
10815 | 1709 |
nextToken(); |
10 | 1710 |
accept(LPAREN); |
10815 | 1711 |
List<JCStatement> inits = token.kind == SEMI ? List.<JCStatement>nil() : forInit(); |
10 | 1712 |
if (inits.length() == 1 && |
10950 | 1713 |
inits.head.hasTag(VARDEF) && |
10 | 1714 |
((JCVariableDecl) inits.head).init == null && |
10815 | 1715 |
token.kind == COLON) { |
10 | 1716 |
checkForeach(); |
1717 |
JCVariableDecl var = (JCVariableDecl)inits.head; |
|
1718 |
accept(COLON); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1719 |
JCExpression expr = parseExpression(); |
10 | 1720 |
accept(RPAREN); |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1721 |
JCStatement body = parseStatement(); |
10 | 1722 |
return F.at(pos).ForeachLoop(var, expr, body); |
1723 |
} else { |
|
1724 |
accept(SEMI); |
|
10815 | 1725 |
JCExpression cond = token.kind == SEMI ? null : parseExpression(); |
10 | 1726 |
accept(SEMI); |
10815 | 1727 |
List<JCExpressionStatement> steps = token.kind == RPAREN ? List.<JCExpressionStatement>nil() : forUpdate(); |
10 | 1728 |
accept(RPAREN); |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1729 |
JCStatement body = parseStatement(); |
10 | 1730 |
return F.at(pos).ForLoop(inits, cond, steps, body); |
1731 |
} |
|
1732 |
} |
|
1733 |
case WHILE: { |
|
10815 | 1734 |
nextToken(); |
10 | 1735 |
JCExpression cond = parExpression(); |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1736 |
JCStatement body = parseStatement(); |
10 | 1737 |
return F.at(pos).WhileLoop(cond, body); |
1738 |
} |
|
1739 |
case DO: { |
|
10815 | 1740 |
nextToken(); |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
1741 |
JCStatement body = parseStatement(); |
10 | 1742 |
accept(WHILE); |
1743 |
JCExpression cond = parExpression(); |
|
1744 |
JCDoWhileLoop t = to(F.at(pos).DoLoop(body, cond)); |
|
1745 |
accept(SEMI); |
|
1746 |
return t; |
|
1747 |
} |
|
1748 |
case TRY: { |
|
10815 | 1749 |
nextToken(); |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
1750 |
List<JCTree> resources = List.<JCTree>nil(); |
10815 | 1751 |
if (token.kind == LPAREN) { |
7211
163fe60f63de
6970016: Clean up ARM/try-with-resources implementation
mcimadamore
parents:
7076
diff
changeset
|
1752 |
checkTryWithResources(); |
10815 | 1753 |
nextToken(); |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
1754 |
resources = resources(); |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
1755 |
accept(RPAREN); |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
1756 |
} |
10 | 1757 |
JCBlock body = block(); |
1758 |
ListBuffer<JCCatch> catchers = new ListBuffer<JCCatch>(); |
|
1759 |
JCBlock finalizer = null; |
|
10815 | 1760 |
if (token.kind == CATCH || token.kind == FINALLY) { |
1761 |
while (token.kind == CATCH) catchers.append(catchClause()); |
|
1762 |
if (token.kind == FINALLY) { |
|
1763 |
nextToken(); |
|
10 | 1764 |
finalizer = block(); |
1765 |
} |
|
1766 |
} else { |
|
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
1767 |
if (allowTWR) { |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
1768 |
if (resources.isEmpty()) |
7076
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
1769 |
error(pos, "try.without.catch.finally.or.resource.decls"); |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
1770 |
} else |
7076
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
1771 |
error(pos, "try.without.catch.or.finally"); |
10 | 1772 |
} |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
1773 |
return F.at(pos).Try(resources, body, catchers.toList(), finalizer); |
10 | 1774 |
} |
1775 |
case SWITCH: { |
|
10815 | 1776 |
nextToken(); |
10 | 1777 |
JCExpression selector = parExpression(); |
1778 |
accept(LBRACE); |
|
1779 |
List<JCCase> cases = switchBlockStatementGroups(); |
|
1780 |
JCSwitch t = to(F.at(pos).Switch(selector, cases)); |
|
1781 |
accept(RBRACE); |
|
1782 |
return t; |
|
1783 |
} |
|
1784 |
case SYNCHRONIZED: { |
|
10815 | 1785 |
nextToken(); |
10 | 1786 |
JCExpression lock = parExpression(); |
1787 |
JCBlock body = block(); |
|
1788 |
return F.at(pos).Synchronized(lock, body); |
|
1789 |
} |
|
1790 |
case RETURN: { |
|
10815 | 1791 |
nextToken(); |
1792 |
JCExpression result = token.kind == SEMI ? null : parseExpression(); |
|
10 | 1793 |
JCReturn t = to(F.at(pos).Return(result)); |
1794 |
accept(SEMI); |
|
1795 |
return t; |
|
1796 |
} |
|
1797 |
case THROW: { |
|
10815 | 1798 |
nextToken(); |
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|
1799 |
JCExpression exc = parseExpression(); |
10 | 1800 |
JCThrow t = to(F.at(pos).Throw(exc)); |
1801 |
accept(SEMI); |
|
1802 |
return t; |
|
1803 |
} |
|
1804 |
case BREAK: { |
|
10815 | 1805 |
nextToken(); |
1806 |
Name label = (token.kind == IDENTIFIER || token.kind == ASSERT || token.kind == ENUM) ? ident() : null; |
|
10 | 1807 |
JCBreak t = to(F.at(pos).Break(label)); |
1808 |
accept(SEMI); |
|
1809 |
return t; |
|
1810 |
} |
|
1811 |
case CONTINUE: { |
|
10815 | 1812 |
nextToken(); |
1813 |
Name label = (token.kind == IDENTIFIER || token.kind == ASSERT || token.kind == ENUM) ? ident() : null; |
|
10 | 1814 |
JCContinue t = to(F.at(pos).Continue(label)); |
1815 |
accept(SEMI); |
|
1816 |
return t; |
|
1817 |
} |
|
1818 |
case SEMI: |
|
10815 | 1819 |
nextToken(); |
10 | 1820 |
return toP(F.at(pos).Skip()); |
1821 |
case ELSE: |
|
1822 |
return toP(F.Exec(syntaxError("else.without.if"))); |
|
1823 |
case FINALLY: |
|
1824 |
return toP(F.Exec(syntaxError("finally.without.try"))); |
|
1825 |
case CATCH: |
|
1826 |
return toP(F.Exec(syntaxError("catch.without.try"))); |
|
1827 |
case ASSERT: { |
|
10815 | 1828 |
if (allowAsserts && token.kind == ASSERT) { |
1829 |
nextToken(); |
|
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|
1830 |
JCExpression assertion = parseExpression(); |
10 | 1831 |
JCExpression message = null; |
10815 | 1832 |
if (token.kind == COLON) { |
1833 |
nextToken(); |
|
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|
1834 |
message = parseExpression(); |
10 | 1835 |
} |
1836 |
JCAssert t = to(F.at(pos).Assert(assertion, message)); |
|
1837 |
accept(SEMI); |
|
1838 |
return t; |
|
1839 |
} |
|
1840 |
/* else fall through to default case */ |
|
1841 |
} |
|
1842 |
case ENUM: |
|
1843 |
default: |
|
10815 | 1844 |
Token prevToken = token; |
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|
1845 |
JCExpression expr = parseExpression(); |
10950 | 1846 |
if (token.kind == COLON && expr.hasTag(IDENT)) { |
10815 | 1847 |
nextToken(); |
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|
1848 |
JCStatement stat = parseStatement(); |
10815 | 1849 |
return F.at(pos).Labelled(prevToken.name(), stat); |
10 | 1850 |
} else { |
1851 |
// This Exec is an "ExpressionStatement"; it subsumes the terminating semicolon |
|
1852 |
JCExpressionStatement stat = to(F.at(pos).Exec(checkExprStat(expr))); |
|
1853 |
accept(SEMI); |
|
1854 |
return stat; |
|
1855 |
} |
|
1856 |
} |
|
1857 |
} |
|
1858 |
||
1859 |
/** CatchClause = CATCH "(" FormalParameter ")" Block |
|
1860 |
*/ |
|
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|
1861 |
protected JCCatch catchClause() { |
10815 | 1862 |
int pos = token.pos; |
10 | 1863 |
accept(CATCH); |
1864 |
accept(LPAREN); |
|
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|
1865 |
JCModifiers mods = optFinal(Flags.PARAMETER); |
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|
1866 |
List<JCExpression> catchTypes = catchTypes(); |
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changeset
|
1867 |
JCExpression paramType = catchTypes.size() > 1 ? |
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|
1868 |
toP(F.at(catchTypes.head.getStartPosition()).TypeUnion(catchTypes)) : |
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changeset
|
1869 |
catchTypes.head; |
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changeset
|
1870 |
JCVariableDecl formal = variableDeclaratorId(mods, paramType); |
10 | 1871 |
accept(RPAREN); |
1872 |
JCBlock body = block(); |
|
1873 |
return F.at(pos).Catch(formal, body); |
|
1874 |
} |
|
1875 |
||
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changeset
|
1876 |
List<JCExpression> catchTypes() { |
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changeset
|
1877 |
ListBuffer<JCExpression> catchTypes = ListBuffer.lb(); |
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changeset
|
1878 |
catchTypes.add(parseType()); |
10815 | 1879 |
while (token.kind == BAR) { |
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changeset
|
1880 |
checkMulticatch(); |
10815 | 1881 |
nextToken(); |
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changeset
|
1882 |
catchTypes.add(qualident()); |
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changeset
|
1883 |
} |
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|
1884 |
return catchTypes.toList(); |
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|
1885 |
} |
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changeset
|
1886 |
|
10 | 1887 |
/** SwitchBlockStatementGroups = { SwitchBlockStatementGroup } |
1888 |
* SwitchBlockStatementGroup = SwitchLabel BlockStatements |
|
1889 |
* SwitchLabel = CASE ConstantExpression ":" | DEFAULT ":" |
|
1890 |
*/ |
|
1891 |
List<JCCase> switchBlockStatementGroups() { |
|
1892 |
ListBuffer<JCCase> cases = new ListBuffer<JCCase>(); |
|
1893 |
while (true) { |
|
10815 | 1894 |
int pos = token.pos; |
1895 |
switch (token.kind) { |
|
10 | 1896 |
case CASE: { |
10815 | 1897 |
nextToken(); |
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|
1898 |
JCExpression pat = parseExpression(); |
10 | 1899 |
accept(COLON); |
1900 |
List<JCStatement> stats = blockStatements(); |
|
1901 |
JCCase c = F.at(pos).Case(pat, stats); |
|
1902 |
if (stats.isEmpty()) |
|
10815 | 1903 |
storeEnd(c, S.prevToken().endPos); |
10 | 1904 |
cases.append(c); |
1905 |
break; |
|
1906 |
} |
|
1907 |
case DEFAULT: { |
|
10815 | 1908 |
nextToken(); |
10 | 1909 |
accept(COLON); |
1910 |
List<JCStatement> stats = blockStatements(); |
|
1911 |
JCCase c = F.at(pos).Case(null, stats); |
|
1912 |
if (stats.isEmpty()) |
|
10815 | 1913 |
storeEnd(c, S.prevToken().endPos); |
10 | 1914 |
cases.append(c); |
1915 |
break; |
|
1916 |
} |
|
1917 |
case RBRACE: case EOF: |
|
1918 |
return cases.toList(); |
|
1919 |
default: |
|
10815 | 1920 |
nextToken(); // to ensure progress |
10 | 1921 |
syntaxError(pos, "expected3", |
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|
1922 |
CASE, DEFAULT, RBRACE); |
10 | 1923 |
} |
1924 |
} |
|
1925 |
} |
|
1926 |
||
1927 |
/** MoreStatementExpressions = { COMMA StatementExpression } |
|
1928 |
*/ |
|
1929 |
<T extends ListBuffer<? super JCExpressionStatement>> T moreStatementExpressions(int pos, |
|
1930 |
JCExpression first, |
|
1931 |
T stats) { |
|
1932 |
// This Exec is a "StatementExpression"; it subsumes no terminating token |
|
1933 |
stats.append(toP(F.at(pos).Exec(checkExprStat(first)))); |
|
10815 | 1934 |
while (token.kind == COMMA) { |
1935 |
nextToken(); |
|
1936 |
pos = token.pos; |
|
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|
1937 |
JCExpression t = parseExpression(); |
10 | 1938 |
// This Exec is a "StatementExpression"; it subsumes no terminating token |
1939 |
stats.append(toP(F.at(pos).Exec(checkExprStat(t)))); |
|
1940 |
} |
|
1941 |
return stats; |
|
1942 |
} |
|
1943 |
||
1944 |
/** ForInit = StatementExpression MoreStatementExpressions |
|
1945 |
* | { FINAL | '@' Annotation } Type VariableDeclarators |
|
1946 |
*/ |
|
1947 |
List<JCStatement> forInit() { |
|
1948 |
ListBuffer<JCStatement> stats = lb(); |
|
10815 | 1949 |
int pos = token.pos; |
1950 |
if (token.kind == FINAL || token.kind == MONKEYS_AT) { |
|
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|
1951 |
return variableDeclarators(optFinal(0), parseType(), stats).toList(); |
10 | 1952 |
} else { |
1953 |
JCExpression t = term(EXPR | TYPE); |
|
1954 |
if ((lastmode & TYPE) != 0 && |
|
10815 | 1955 |
(token.kind == IDENTIFIER || token.kind == ASSERT || token.kind == ENUM)) |
10 | 1956 |
return variableDeclarators(modifiersOpt(), t, stats).toList(); |
1957 |
else |
|
1958 |
return moreStatementExpressions(pos, t, stats).toList(); |
|
1959 |
} |
|
1960 |
} |
|
1961 |
||
1962 |
/** ForUpdate = StatementExpression MoreStatementExpressions |
|
1963 |
*/ |
|
1964 |
List<JCExpressionStatement> forUpdate() { |
|
10815 | 1965 |
return moreStatementExpressions(token.pos, |
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|
1966 |
parseExpression(), |
10 | 1967 |
new ListBuffer<JCExpressionStatement>()).toList(); |
1968 |
} |
|
1969 |
||
1970 |
/** AnnotationsOpt = { '@' Annotation } |
|
1971 |
*/ |
|
7072 | 1972 |
List<JCAnnotation> annotationsOpt() { |
10815 | 1973 |
if (token.kind != MONKEYS_AT) return List.nil(); // optimization |
10 | 1974 |
ListBuffer<JCAnnotation> buf = new ListBuffer<JCAnnotation>(); |
10815 | 1975 |
while (token.kind == MONKEYS_AT) { |
1976 |
int pos = token.pos; |
|
1977 |
nextToken(); |
|
7072 | 1978 |
buf.append(annotation(pos)); |
10 | 1979 |
} |
7072 | 1980 |
return buf.toList(); |
10 | 1981 |
} |
1982 |
||
1983 |
/** ModifiersOpt = { Modifier } |
|
1984 |
* Modifier = PUBLIC | PROTECTED | PRIVATE | STATIC | ABSTRACT | FINAL |
|
1985 |
* | NATIVE | SYNCHRONIZED | TRANSIENT | VOLATILE | "@" |
|
1986 |
* | "@" Annotation |
|
1987 |
*/ |
|
1988 |
JCModifiers modifiersOpt() { |
|
1989 |
return modifiersOpt(null); |
|
1990 |
} |
|
10455
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changeset
|
1991 |
protected JCModifiers modifiersOpt(JCModifiers partial) { |
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changeset
|
1992 |
long flags; |
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changeset
|
1993 |
ListBuffer<JCAnnotation> annotations = new ListBuffer<JCAnnotation>(); |
a132763160d7
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diff
changeset
|
1994 |
int pos; |
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diff
changeset
|
1995 |
if (partial == null) { |
a132763160d7
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changeset
|
1996 |
flags = 0; |
10815 | 1997 |
pos = token.pos; |
4870
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changeset
|
1998 |
} else { |
a132763160d7
6919889: assorted position errors in compiler syntax trees
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parents:
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diff
changeset
|
1999 |
flags = partial.flags; |
a132763160d7
6919889: assorted position errors in compiler syntax trees
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parents:
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diff
changeset
|
2000 |
annotations.appendList(partial.annotations); |
a132763160d7
6919889: assorted position errors in compiler syntax trees
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diff
changeset
|
2001 |
pos = partial.pos; |
a132763160d7
6919889: assorted position errors in compiler syntax trees
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diff
changeset
|
2002 |
} |
10948 | 2003 |
if (token.deprecatedFlag()) { |
10 | 2004 |
flags |= Flags.DEPRECATED; |
2005 |
} |
|
2006 |
int lastPos = Position.NOPOS; |
|
2007 |
loop: |
|
2008 |
while (true) { |
|
2009 |
long flag; |
|
10815 | 2010 |
switch (token.kind) { |
10 | 2011 |
case PRIVATE : flag = Flags.PRIVATE; break; |
2012 |
case PROTECTED : flag = Flags.PROTECTED; break; |
|
2013 |
case PUBLIC : flag = Flags.PUBLIC; break; |
|
2014 |
case STATIC : flag = Flags.STATIC; break; |
|
2015 |
case TRANSIENT : flag = Flags.TRANSIENT; break; |
|
2016 |
case FINAL : flag = Flags.FINAL; break; |
|
2017 |
case ABSTRACT : flag = Flags.ABSTRACT; break; |
|
2018 |
case NATIVE : flag = Flags.NATIVE; break; |
|
2019 |
case VOLATILE : flag = Flags.VOLATILE; break; |
|
2020 |
case SYNCHRONIZED: flag = Flags.SYNCHRONIZED; break; |
|
2021 |
case STRICTFP : flag = Flags.STRICTFP; break; |
|
2022 |
case MONKEYS_AT : flag = Flags.ANNOTATION; break; |
|
10815 | 2023 |
case ERROR : flag = 0; nextToken(); break; |
10 | 2024 |
default: break loop; |
2025 |
} |
|
10815 | 2026 |
if ((flags & flag) != 0) error(token.pos, "repeated.modifier"); |
2027 |
lastPos = token.pos; |
|
2028 |
nextToken(); |
|
10 | 2029 |
if (flag == Flags.ANNOTATION) { |
2030 |
checkAnnotations(); |
|
10815 | 2031 |
if (token.kind != INTERFACE) { |
7072 | 2032 |
JCAnnotation ann = annotation(lastPos); |
4870
a132763160d7
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diff
changeset
|
2033 |
// if first modifier is an annotation, set pos to annotation's. |
a132763160d7
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parents:
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diff
changeset
|
2034 |
if (flags == 0 && annotations.isEmpty()) |
a132763160d7
6919889: assorted position errors in compiler syntax trees
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parents:
4704
diff
changeset
|
2035 |
pos = ann.pos; |
a132763160d7
6919889: assorted position errors in compiler syntax trees
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parents:
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diff
changeset
|
2036 |
annotations.append(ann); |
a132763160d7
6919889: assorted position errors in compiler syntax trees
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parents:
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diff
changeset
|
2037 |
lastPos = ann.pos; |
10 | 2038 |
flag = 0; |
2039 |
} |
|
2040 |
} |
|
2041 |
flags |= flag; |
|
2042 |
} |
|
10815 | 2043 |
switch (token.kind) { |
10 | 2044 |
case ENUM: flags |= Flags.ENUM; break; |
2045 |
case INTERFACE: flags |= Flags.INTERFACE; break; |
|
2046 |
default: break; |
|
2047 |
} |
|
2048 |
||
2049 |
/* A modifiers tree with no modifier tokens or annotations |
|
2050 |
* has no text position. */ |
|
6152
111b884a19a7
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jjg
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changeset
|
2051 |
if ((flags & (Flags.ModifierFlags | Flags.ANNOTATION)) == 0 && annotations.isEmpty()) |
10 | 2052 |
pos = Position.NOPOS; |
2053 |
||
2054 |
JCModifiers mods = F.at(pos).Modifiers(flags, annotations.toList()); |
|
2055 |
if (pos != Position.NOPOS) |
|
10815 | 2056 |
storeEnd(mods, S.prevToken().endPos); |
10 | 2057 |
return mods; |
2058 |
} |
|
2059 |
||
2060 |
/** Annotation = "@" Qualident [ "(" AnnotationFieldValues ")" ] |
|
2061 |
* @param pos position of "@" token |
|
2062 |
*/ |
|
7072 | 2063 |
JCAnnotation annotation(int pos) { |
10 | 2064 |
// accept(AT); // AT consumed by caller |
2065 |
checkAnnotations(); |
|
2066 |
JCTree ident = qualident(); |
|
2067 |
List<JCExpression> fieldValues = annotationFieldValuesOpt(); |
|
7072 | 2068 |
JCAnnotation ann = F.at(pos).Annotation(ident, fieldValues); |
10815 | 2069 |
storeEnd(ann, S.prevToken().endPos); |
10 | 2070 |
return ann; |
2071 |
} |
|
2072 |
||
2073 |
List<JCExpression> annotationFieldValuesOpt() { |
|
10815 | 2074 |
return (token.kind == LPAREN) ? annotationFieldValues() : List.<JCExpression>nil(); |
10 | 2075 |
} |
2076 |
||
2077 |
/** AnnotationFieldValues = "(" [ AnnotationFieldValue { "," AnnotationFieldValue } ] ")" */ |
|
2078 |
List<JCExpression> annotationFieldValues() { |
|
2079 |
accept(LPAREN); |
|
2080 |
ListBuffer<JCExpression> buf = new ListBuffer<JCExpression>(); |
|
10815 | 2081 |
if (token.kind != RPAREN) { |
10 | 2082 |
buf.append(annotationFieldValue()); |
10815 | 2083 |
while (token.kind == COMMA) { |
2084 |
nextToken(); |
|
10 | 2085 |
buf.append(annotationFieldValue()); |
2086 |
} |
|
2087 |
} |
|
2088 |
accept(RPAREN); |
|
2089 |
return buf.toList(); |
|
2090 |
} |
|
2091 |
||
2092 |
/** AnnotationFieldValue = AnnotationValue |
|
2093 |
* | Identifier "=" AnnotationValue |
|
2094 |
*/ |
|
2095 |
JCExpression annotationFieldValue() { |
|
10815 | 2096 |
if (token.kind == IDENTIFIER) { |
10 | 2097 |
mode = EXPR; |
2098 |
JCExpression t1 = term1(); |
|
10950 | 2099 |
if (t1.hasTag(IDENT) && token.kind == EQ) { |
10815 | 2100 |
int pos = token.pos; |
10 | 2101 |
accept(EQ); |
4870
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parents:
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|
2102 |
JCExpression v = annotationValue(); |
a132763160d7
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changeset
|
2103 |
return toP(F.at(pos).Assign(t1, v)); |
10 | 2104 |
} else { |
2105 |
return t1; |
|
2106 |
} |
|
2107 |
} |
|
2108 |
return annotationValue(); |
|
2109 |
} |
|
2110 |
||
2111 |
/* AnnotationValue = ConditionalExpression |
|
2112 |
* | Annotation |
|
3997
35250de1d4ea
6337964: should ignore last comma in annotation array
darcy
parents:
3894
diff
changeset
|
2113 |
* | "{" [ AnnotationValue { "," AnnotationValue } ] [","] "}" |
10 | 2114 |
*/ |
2115 |
JCExpression annotationValue() { |
|
2116 |
int pos; |
|
10815 | 2117 |
switch (token.kind) { |
10 | 2118 |
case MONKEYS_AT: |
10815 | 2119 |
pos = token.pos; |
2120 |
nextToken(); |
|
7072 | 2121 |
return annotation(pos); |
10 | 2122 |
case LBRACE: |
10815 | 2123 |
pos = token.pos; |
10 | 2124 |
accept(LBRACE); |
2125 |
ListBuffer<JCExpression> buf = new ListBuffer<JCExpression>(); |
|
10815 | 2126 |
if (token.kind != RBRACE) { |
10 | 2127 |
buf.append(annotationValue()); |
10815 | 2128 |
while (token.kind == COMMA) { |
2129 |
nextToken(); |
|
2130 |
if (token.kind == RBRACE) break; |
|
10 | 2131 |
buf.append(annotationValue()); |
2132 |
} |
|
2133 |
} |
|
2134 |
accept(RBRACE); |
|
2135 |
return toP(F.at(pos).NewArray(null, List.<JCExpression>nil(), buf.toList())); |
|
2136 |
default: |
|
2137 |
mode = EXPR; |
|
2138 |
return term1(); |
|
2139 |
} |
|
2140 |
} |
|
2141 |
||
2142 |
/** VariableDeclarators = VariableDeclarator { "," VariableDeclarator } |
|
2143 |
*/ |
|
2144 |
public <T extends ListBuffer<? super JCVariableDecl>> T variableDeclarators(JCModifiers mods, |
|
2145 |
JCExpression type, |
|
2146 |
T vdefs) |
|
2147 |
{ |
|
10815 | 2148 |
return variableDeclaratorsRest(token.pos, mods, type, ident(), false, null, vdefs); |
10 | 2149 |
} |
2150 |
||
2151 |
/** VariableDeclaratorsRest = VariableDeclaratorRest { "," VariableDeclarator } |
|
2152 |
* ConstantDeclaratorsRest = ConstantDeclaratorRest { "," ConstantDeclarator } |
|
2153 |
* |
|
2154 |
* @param reqInit Is an initializer always required? |
|
2155 |
* @param dc The documentation comment for the variable declarations, or null. |
|
2156 |
*/ |
|
2157 |
<T extends ListBuffer<? super JCVariableDecl>> T variableDeclaratorsRest(int pos, |
|
2158 |
JCModifiers mods, |
|
2159 |
JCExpression type, |
|
2160 |
Name name, |
|
2161 |
boolean reqInit, |
|
2162 |
String dc, |
|
2163 |
T vdefs) |
|
2164 |
{ |
|
2165 |
vdefs.append(variableDeclaratorRest(pos, mods, type, name, reqInit, dc)); |
|
10815 | 2166 |
while (token.kind == COMMA) { |
10 | 2167 |
// All but last of multiple declarators subsume a comma |
10815 | 2168 |
storeEnd((JCTree)vdefs.elems.last(), token.endPos); |
2169 |
nextToken(); |
|
10 | 2170 |
vdefs.append(variableDeclarator(mods, type, reqInit, dc)); |
2171 |
} |
|
2172 |
return vdefs; |
|
2173 |
} |
|
2174 |
||
2175 |
/** VariableDeclarator = Ident VariableDeclaratorRest |
|
2176 |
* ConstantDeclarator = Ident ConstantDeclaratorRest |
|
2177 |
*/ |
|
2178 |
JCVariableDecl variableDeclarator(JCModifiers mods, JCExpression type, boolean reqInit, String dc) { |
|
10815 | 2179 |
return variableDeclaratorRest(token.pos, mods, type, ident(), reqInit, dc); |
10 | 2180 |
} |
2181 |
||
2182 |
/** VariableDeclaratorRest = BracketsOpt ["=" VariableInitializer] |
|
2183 |
* ConstantDeclaratorRest = BracketsOpt "=" VariableInitializer |
|
2184 |
* |
|
2185 |
* @param reqInit Is an initializer always required? |
|
2186 |
* @param dc The documentation comment for the variable declarations, or null. |
|
2187 |
*/ |
|
2188 |
JCVariableDecl variableDeclaratorRest(int pos, JCModifiers mods, JCExpression type, Name name, |
|
2189 |
boolean reqInit, String dc) { |
|
2190 |
type = bracketsOpt(type); |
|
2191 |
JCExpression init = null; |
|
10815 | 2192 |
if (token.kind == EQ) { |
2193 |
nextToken(); |
|
10 | 2194 |
init = variableInitializer(); |
2195 |
} |
|
10815 | 2196 |
else if (reqInit) syntaxError(token.pos, "expected", EQ); |
10 | 2197 |
JCVariableDecl result = |
2198 |
toP(F.at(pos).VarDef(mods, name, type, init)); |
|
2199 |
attach(result, dc); |
|
2200 |
return result; |
|
2201 |
} |
|
2202 |
||
2203 |
/** VariableDeclaratorId = Ident BracketsOpt |
|
2204 |
*/ |
|
2205 |
JCVariableDecl variableDeclaratorId(JCModifiers mods, JCExpression type) { |
|
10815 | 2206 |
int pos = token.pos; |
10 | 2207 |
Name name = ident(); |
8047
c7f08cdb5c3c
6569633: Varargs: parser error when varargs element type is an array
mcimadamore
parents:
8033
diff
changeset
|
2208 |
if ((mods.flags & Flags.VARARGS) != 0 && |
10815 | 2209 |
token.kind == LBRACKET) { |
2210 |
log.error(token.pos, "varargs.and.old.array.syntax"); |
|
8047
c7f08cdb5c3c
6569633: Varargs: parser error when varargs element type is an array
mcimadamore
parents:
8033
diff
changeset
|
2211 |
} |
c7f08cdb5c3c
6569633: Varargs: parser error when varargs element type is an array
mcimadamore
parents:
8033
diff
changeset
|
2212 |
type = bracketsOpt(type); |
10 | 2213 |
return toP(F.at(pos).VarDef(mods, name, type, null)); |
2214 |
} |
|
2215 |
||
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2216 |
/** Resources = Resource { ";" Resources } |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2217 |
*/ |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2218 |
List<JCTree> resources() { |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2219 |
ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2220 |
defs.append(resource()); |
10815 | 2221 |
while (token.kind == SEMI) { |
8234
5050975e2df0
7014734: Project Coin: Allow optional trailing semicolon to terminate resources list in try-with-resources
darcy
parents:
8224
diff
changeset
|
2222 |
// All but last of multiple declarators must subsume a semicolon |
10815 | 2223 |
storeEnd(defs.elems.last(), token.endPos); |
2224 |
int semiColonPos = token.pos; |
|
2225 |
nextToken(); |
|
2226 |
if (token.kind == RPAREN) { // Optional trailing semicolon |
|
8224
8f18e1622660
7013420: Project Coin: remove general expression support from try-with-resources statement
darcy
parents:
8047
diff
changeset
|
2227 |
// after last resource |
8f18e1622660
7013420: Project Coin: remove general expression support from try-with-resources statement
darcy
parents:
8047
diff
changeset
|
2228 |
break; |
8f18e1622660
7013420: Project Coin: remove general expression support from try-with-resources statement
darcy
parents:
8047
diff
changeset
|
2229 |
} |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2230 |
defs.append(resource()); |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2231 |
} |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2232 |
return defs.toList(); |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2233 |
} |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2234 |
|
8224
8f18e1622660
7013420: Project Coin: remove general expression support from try-with-resources statement
darcy
parents:
8047
diff
changeset
|
2235 |
/** Resource = VariableModifiersOpt Type VariableDeclaratorId = Expression |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2236 |
*/ |
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2237 |
protected JCTree resource() { |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2238 |
JCModifiers optFinal = optFinal(Flags.FINAL); |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2239 |
JCExpression type = parseType(); |
10815 | 2240 |
int pos = token.pos; |
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2241 |
Name ident = ident(); |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2242 |
return variableDeclaratorRest(pos, optFinal, type, ident, true, null); |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2243 |
} |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
2244 |
|
10 | 2245 |
/** CompilationUnit = [ { "@" Annotation } PACKAGE Qualident ";"] {ImportDeclaration} {TypeDeclaration} |
2246 |
*/ |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2247 |
public JCTree.JCCompilationUnit parseCompilationUnit() { |
10815 | 2248 |
Token firstToken = token; |
10 | 2249 |
JCExpression pid = null; |
2250 |
JCModifiers mods = null; |
|
10815 | 2251 |
boolean consumedToplevelDoc = false; |
2252 |
boolean seenImport = false; |
|
2253 |
boolean seenPackage = false; |
|
10 | 2254 |
List<JCAnnotation> packageAnnotations = List.nil(); |
10815 | 2255 |
if (token.kind == MONKEYS_AT) |
10 | 2256 |
mods = modifiersOpt(); |
2257 |
||
10815 | 2258 |
if (token.kind == PACKAGE) { |
2259 |
seenPackage = true; |
|
10 | 2260 |
if (mods != null) { |
2261 |
checkNoMods(mods.flags); |
|
2262 |
packageAnnotations = mods.annotations; |
|
2263 |
mods = null; |
|
2264 |
} |
|
10815 | 2265 |
nextToken(); |
10 | 2266 |
pid = qualident(); |
2267 |
accept(SEMI); |
|
2268 |
} |
|
2269 |
ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2270 |
boolean checkForImports = true; |
10815 | 2271 |
boolean firstTypeDecl = true; |
2272 |
while (token.kind != EOF) { |
|
2273 |
if (token.pos <= errorEndPos) { |
|
10 | 2274 |
// error recovery |
2275 |
skip(checkForImports, false, false, false); |
|
10815 | 2276 |
if (token.kind == EOF) |
10 | 2277 |
break; |
2278 |
} |
|
10815 | 2279 |
if (checkForImports && mods == null && token.kind == IMPORT) { |
2280 |
seenImport = true; |
|
10 | 2281 |
defs.append(importDeclaration()); |
2282 |
} else { |
|
10948 | 2283 |
String docComment = token.comment(CommentStyle.JAVADOC); |
10815 | 2284 |
if (firstTypeDecl && !seenImport && !seenPackage) { |
10948 | 2285 |
docComment = firstToken.comment(CommentStyle.JAVADOC); |
10815 | 2286 |
consumedToplevelDoc = true; |
6716
71df48777dd1
6877202: Elements.getDocComment() is not getting JavaDocComments
jjg
parents:
6585
diff
changeset
|
2287 |
} |
10815 | 2288 |
JCTree def = typeDeclaration(mods, docComment); |
10 | 2289 |
if (def instanceof JCExpressionStatement) |
2290 |
def = ((JCExpressionStatement)def).expr; |
|
2291 |
defs.append(def); |
|
2292 |
if (def instanceof JCClassDecl) |
|
2293 |
checkForImports = false; |
|
2294 |
mods = null; |
|
10815 | 2295 |
firstTypeDecl = false; |
10 | 2296 |
} |
2297 |
} |
|
10815 | 2298 |
JCTree.JCCompilationUnit toplevel = F.at(firstToken.pos).TopLevel(packageAnnotations, pid, defs.toList()); |
2299 |
if (!consumedToplevelDoc) |
|
10948 | 2300 |
attach(toplevel, firstToken.comment(CommentStyle.JAVADOC)); |
10 | 2301 |
if (defs.elems.isEmpty()) |
10815 | 2302 |
storeEnd(toplevel, S.prevToken().endPos); |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2303 |
if (keepDocComments) |
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2304 |
toplevel.docComments = docComments; |
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2305 |
if (keepLineMap) |
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2306 |
toplevel.lineMap = S.getLineMap(); |
10 | 2307 |
return toplevel; |
2308 |
} |
|
2309 |
||
2310 |
/** ImportDeclaration = IMPORT [ STATIC ] Ident { "." Ident } [ "." "*" ] ";" |
|
2311 |
*/ |
|
2312 |
JCTree importDeclaration() { |
|
10815 | 2313 |
int pos = token.pos; |
2314 |
nextToken(); |
|
10 | 2315 |
boolean importStatic = false; |
10815 | 2316 |
if (token.kind == STATIC) { |
10 | 2317 |
checkStaticImports(); |
2318 |
importStatic = true; |
|
10815 | 2319 |
nextToken(); |
10 | 2320 |
} |
10815 | 2321 |
JCExpression pid = toP(F.at(token.pos).Ident(ident())); |
10 | 2322 |
do { |
10815 | 2323 |
int pos1 = token.pos; |
10 | 2324 |
accept(DOT); |
10815 | 2325 |
if (token.kind == STAR) { |
10 | 2326 |
pid = to(F.at(pos1).Select(pid, names.asterisk)); |
10815 | 2327 |
nextToken(); |
10 | 2328 |
break; |
2329 |
} else { |
|
2330 |
pid = toP(F.at(pos1).Select(pid, ident())); |
|
2331 |
} |
|
10815 | 2332 |
} while (token.kind == DOT); |
10 | 2333 |
accept(SEMI); |
2334 |
return toP(F.at(pos).Import(pid, importStatic)); |
|
2335 |
} |
|
2336 |
||
2337 |
/** TypeDeclaration = ClassOrInterfaceOrEnumDeclaration |
|
2338 |
* | ";" |
|
2339 |
*/ |
|
10815 | 2340 |
JCTree typeDeclaration(JCModifiers mods, String docComment) { |
2341 |
int pos = token.pos; |
|
2342 |
if (mods == null && token.kind == SEMI) { |
|
2343 |
nextToken(); |
|
10 | 2344 |
return toP(F.at(pos).Skip()); |
2345 |
} else { |
|
10815 | 2346 |
return classOrInterfaceOrEnumDeclaration(modifiersOpt(mods), docComment); |
10 | 2347 |
} |
2348 |
} |
|
2349 |
||
2350 |
/** ClassOrInterfaceOrEnumDeclaration = ModifiersOpt |
|
2351 |
* (ClassDeclaration | InterfaceDeclaration | EnumDeclaration) |
|
2352 |
* @param mods Any modifiers starting the class or interface declaration |
|
2353 |
* @param dc The documentation comment for the class, or null. |
|
2354 |
*/ |
|
2355 |
JCStatement classOrInterfaceOrEnumDeclaration(JCModifiers mods, String dc) { |
|
10815 | 2356 |
if (token.kind == CLASS) { |
10 | 2357 |
return classDeclaration(mods, dc); |
10815 | 2358 |
} else if (token.kind == INTERFACE) { |
10 | 2359 |
return interfaceDeclaration(mods, dc); |
2360 |
} else if (allowEnums) { |
|
10815 | 2361 |
if (token.kind == ENUM) { |
10 | 2362 |
return enumDeclaration(mods, dc); |
2363 |
} else { |
|
10815 | 2364 |
int pos = token.pos; |
10 | 2365 |
List<JCTree> errs; |
10815 | 2366 |
if (token.kind == IDENTIFIER) { |
10 | 2367 |
errs = List.<JCTree>of(mods, toP(F.at(pos).Ident(ident()))); |
10815 | 2368 |
setErrorEndPos(token.pos); |
10 | 2369 |
} else { |
2370 |
errs = List.<JCTree>of(mods); |
|
2371 |
} |
|
2372 |
return toP(F.Exec(syntaxError(pos, errs, "expected3", |
|
939
38e24969c7e9
6717241: some diagnostic argument is prematurely converted into a String object
mcimadamore
parents:
735
diff
changeset
|
2373 |
CLASS, INTERFACE, ENUM))); |
10 | 2374 |
} |
2375 |
} else { |
|
10815 | 2376 |
if (token.kind == ENUM) { |
2377 |
error(token.pos, "enums.not.supported.in.source", source.name); |
|
10 | 2378 |
allowEnums = true; |
2379 |
return enumDeclaration(mods, dc); |
|
2380 |
} |
|
10815 | 2381 |
int pos = token.pos; |
10 | 2382 |
List<JCTree> errs; |
10815 | 2383 |
if (token.kind == IDENTIFIER) { |
10 | 2384 |
errs = List.<JCTree>of(mods, toP(F.at(pos).Ident(ident()))); |
10815 | 2385 |
setErrorEndPos(token.pos); |
10 | 2386 |
} else { |
2387 |
errs = List.<JCTree>of(mods); |
|
2388 |
} |
|
2389 |
return toP(F.Exec(syntaxError(pos, errs, "expected2", |
|
939
38e24969c7e9
6717241: some diagnostic argument is prematurely converted into a String object
mcimadamore
parents:
735
diff
changeset
|
2390 |
CLASS, INTERFACE))); |
10 | 2391 |
} |
2392 |
} |
|
2393 |
||
2394 |
/** ClassDeclaration = CLASS Ident TypeParametersOpt [EXTENDS Type] |
|
2395 |
* [IMPLEMENTS TypeList] ClassBody |
|
2396 |
* @param mods The modifiers starting the class declaration |
|
2397 |
* @param dc The documentation comment for the class, or null. |
|
2398 |
*/ |
|
2399 |
JCClassDecl classDeclaration(JCModifiers mods, String dc) { |
|
10815 | 2400 |
int pos = token.pos; |
10 | 2401 |
accept(CLASS); |
2402 |
Name name = ident(); |
|
2403 |
||
2404 |
List<JCTypeParameter> typarams = typeParametersOpt(); |
|
2405 |
||
8625
6b51ef804d49
6639645: Modeling type implementing missing interfaces
jjg
parents:
8234
diff
changeset
|
2406 |
JCExpression extending = null; |
10815 | 2407 |
if (token.kind == EXTENDS) { |
2408 |
nextToken(); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2409 |
extending = parseType(); |
10 | 2410 |
} |
2411 |
List<JCExpression> implementing = List.nil(); |
|
10815 | 2412 |
if (token.kind == IMPLEMENTS) { |
2413 |
nextToken(); |
|
10 | 2414 |
implementing = typeList(); |
2415 |
} |
|
2416 |
List<JCTree> defs = classOrInterfaceBody(name, false); |
|
2417 |
JCClassDecl result = toP(F.at(pos).ClassDef( |
|
2418 |
mods, name, typarams, extending, implementing, defs)); |
|
2419 |
attach(result, dc); |
|
2420 |
return result; |
|
2421 |
} |
|
2422 |
||
2423 |
/** InterfaceDeclaration = INTERFACE Ident TypeParametersOpt |
|
2424 |
* [EXTENDS TypeList] InterfaceBody |
|
2425 |
* @param mods The modifiers starting the interface declaration |
|
2426 |
* @param dc The documentation comment for the interface, or null. |
|
2427 |
*/ |
|
2428 |
JCClassDecl interfaceDeclaration(JCModifiers mods, String dc) { |
|
10815 | 2429 |
int pos = token.pos; |
10 | 2430 |
accept(INTERFACE); |
2431 |
Name name = ident(); |
|
2432 |
||
2433 |
List<JCTypeParameter> typarams = typeParametersOpt(); |
|
2434 |
||
2435 |
List<JCExpression> extending = List.nil(); |
|
10815 | 2436 |
if (token.kind == EXTENDS) { |
2437 |
nextToken(); |
|
10 | 2438 |
extending = typeList(); |
2439 |
} |
|
2440 |
List<JCTree> defs = classOrInterfaceBody(name, true); |
|
2441 |
JCClassDecl result = toP(F.at(pos).ClassDef( |
|
2442 |
mods, name, typarams, null, extending, defs)); |
|
2443 |
attach(result, dc); |
|
2444 |
return result; |
|
2445 |
} |
|
2446 |
||
2447 |
/** EnumDeclaration = ENUM Ident [IMPLEMENTS TypeList] EnumBody |
|
2448 |
* @param mods The modifiers starting the enum declaration |
|
2449 |
* @param dc The documentation comment for the enum, or null. |
|
2450 |
*/ |
|
2451 |
JCClassDecl enumDeclaration(JCModifiers mods, String dc) { |
|
10815 | 2452 |
int pos = token.pos; |
10 | 2453 |
accept(ENUM); |
2454 |
Name name = ident(); |
|
2455 |
||
2456 |
List<JCExpression> implementing = List.nil(); |
|
10815 | 2457 |
if (token.kind == IMPLEMENTS) { |
2458 |
nextToken(); |
|
10 | 2459 |
implementing = typeList(); |
2460 |
} |
|
2461 |
||
2462 |
List<JCTree> defs = enumBody(name); |
|
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
2463 |
mods.flags |= Flags.ENUM; |
10 | 2464 |
JCClassDecl result = toP(F.at(pos). |
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
2465 |
ClassDef(mods, name, List.<JCTypeParameter>nil(), |
10 | 2466 |
null, implementing, defs)); |
2467 |
attach(result, dc); |
|
2468 |
return result; |
|
2469 |
} |
|
2470 |
||
2471 |
/** EnumBody = "{" { EnumeratorDeclarationList } [","] |
|
2472 |
* [ ";" {ClassBodyDeclaration} ] "}" |
|
2473 |
*/ |
|
2474 |
List<JCTree> enumBody(Name enumName) { |
|
2475 |
accept(LBRACE); |
|
2476 |
ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
|
10815 | 2477 |
if (token.kind == COMMA) { |
2478 |
nextToken(); |
|
2479 |
} else if (token.kind != RBRACE && token.kind != SEMI) { |
|
10 | 2480 |
defs.append(enumeratorDeclaration(enumName)); |
10815 | 2481 |
while (token.kind == COMMA) { |
2482 |
nextToken(); |
|
2483 |
if (token.kind == RBRACE || token.kind == SEMI) break; |
|
10 | 2484 |
defs.append(enumeratorDeclaration(enumName)); |
2485 |
} |
|
10815 | 2486 |
if (token.kind != SEMI && token.kind != RBRACE) { |
2487 |
defs.append(syntaxError(token.pos, "expected3", |
|
939
38e24969c7e9
6717241: some diagnostic argument is prematurely converted into a String object
mcimadamore
parents:
735
diff
changeset
|
2488 |
COMMA, RBRACE, SEMI)); |
10815 | 2489 |
nextToken(); |
10 | 2490 |
} |
2491 |
} |
|
10815 | 2492 |
if (token.kind == SEMI) { |
2493 |
nextToken(); |
|
2494 |
while (token.kind != RBRACE && token.kind != EOF) { |
|
10 | 2495 |
defs.appendList(classOrInterfaceBodyDeclaration(enumName, |
2496 |
false)); |
|
10815 | 2497 |
if (token.pos <= errorEndPos) { |
10 | 2498 |
// error recovery |
2499 |
skip(false, true, true, false); |
|
2500 |
} |
|
2501 |
} |
|
2502 |
} |
|
2503 |
accept(RBRACE); |
|
2504 |
return defs.toList(); |
|
2505 |
} |
|
2506 |
||
2507 |
/** EnumeratorDeclaration = AnnotationsOpt [TypeArguments] IDENTIFIER [ Arguments ] [ "{" ClassBody "}" ] |
|
2508 |
*/ |
|
2509 |
JCTree enumeratorDeclaration(Name enumName) { |
|
10948 | 2510 |
String dc = token.comment(CommentStyle.JAVADOC); |
10 | 2511 |
int flags = Flags.PUBLIC|Flags.STATIC|Flags.FINAL|Flags.ENUM; |
10948 | 2512 |
if (token.deprecatedFlag()) { |
10 | 2513 |
flags |= Flags.DEPRECATED; |
2514 |
} |
|
10815 | 2515 |
int pos = token.pos; |
7072 | 2516 |
List<JCAnnotation> annotations = annotationsOpt(); |
10 | 2517 |
JCModifiers mods = F.at(annotations.isEmpty() ? Position.NOPOS : pos).Modifiers(flags, annotations); |
2518 |
List<JCExpression> typeArgs = typeArgumentsOpt(); |
|
10815 | 2519 |
int identPos = token.pos; |
10 | 2520 |
Name name = ident(); |
10815 | 2521 |
int createPos = token.pos; |
2522 |
List<JCExpression> args = (token.kind == LPAREN) |
|
10 | 2523 |
? arguments() : List.<JCExpression>nil(); |
2524 |
JCClassDecl body = null; |
|
10815 | 2525 |
if (token.kind == LBRACE) { |
10 | 2526 |
JCModifiers mods1 = F.at(Position.NOPOS).Modifiers(Flags.ENUM | Flags.STATIC); |
2527 |
List<JCTree> defs = classOrInterfaceBody(names.empty, false); |
|
2528 |
body = toP(F.at(identPos).AnonymousClassDef(mods1, defs)); |
|
2529 |
} |
|
2530 |
if (args.isEmpty() && body == null) |
|
4704
5206047418c2
6472751: SourcePositions.getStartPos returns incorrect value for enum constants
jjg
parents:
3997
diff
changeset
|
2531 |
createPos = identPos; |
5206047418c2
6472751: SourcePositions.getStartPos returns incorrect value for enum constants
jjg
parents:
3997
diff
changeset
|
2532 |
JCIdent ident = F.at(identPos).Ident(enumName); |
10 | 2533 |
JCNewClass create = F.at(createPos).NewClass(null, typeArgs, ident, args, body); |
4704
5206047418c2
6472751: SourcePositions.getStartPos returns incorrect value for enum constants
jjg
parents:
3997
diff
changeset
|
2534 |
if (createPos != identPos) |
10815 | 2535 |
storeEnd(create, S.prevToken().endPos); |
4704
5206047418c2
6472751: SourcePositions.getStartPos returns incorrect value for enum constants
jjg
parents:
3997
diff
changeset
|
2536 |
ident = F.at(identPos).Ident(enumName); |
10 | 2537 |
JCTree result = toP(F.at(pos).VarDef(mods, name, ident, create)); |
2538 |
attach(result, dc); |
|
2539 |
return result; |
|
2540 |
} |
|
2541 |
||
2542 |
/** TypeList = Type {"," Type} |
|
2543 |
*/ |
|
2544 |
List<JCExpression> typeList() { |
|
2545 |
ListBuffer<JCExpression> ts = new ListBuffer<JCExpression>(); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2546 |
ts.append(parseType()); |
10815 | 2547 |
while (token.kind == COMMA) { |
2548 |
nextToken(); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2549 |
ts.append(parseType()); |
10 | 2550 |
} |
2551 |
return ts.toList(); |
|
2552 |
} |
|
2553 |
||
2554 |
/** ClassBody = "{" {ClassBodyDeclaration} "}" |
|
2555 |
* InterfaceBody = "{" {InterfaceBodyDeclaration} "}" |
|
2556 |
*/ |
|
2557 |
List<JCTree> classOrInterfaceBody(Name className, boolean isInterface) { |
|
2558 |
accept(LBRACE); |
|
10815 | 2559 |
if (token.pos <= errorEndPos) { |
10 | 2560 |
// error recovery |
2561 |
skip(false, true, false, false); |
|
10815 | 2562 |
if (token.kind == LBRACE) |
2563 |
nextToken(); |
|
10 | 2564 |
} |
2565 |
ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
|
10815 | 2566 |
while (token.kind != RBRACE && token.kind != EOF) { |
10 | 2567 |
defs.appendList(classOrInterfaceBodyDeclaration(className, isInterface)); |
10815 | 2568 |
if (token.pos <= errorEndPos) { |
10 | 2569 |
// error recovery |
2570 |
skip(false, true, true, false); |
|
2571 |
} |
|
2572 |
} |
|
2573 |
accept(RBRACE); |
|
2574 |
return defs.toList(); |
|
2575 |
} |
|
2576 |
||
2577 |
/** ClassBodyDeclaration = |
|
2578 |
* ";" |
|
2579 |
* | [STATIC] Block |
|
2580 |
* | ModifiersOpt |
|
2581 |
* ( Type Ident |
|
2582 |
* ( VariableDeclaratorsRest ";" | MethodDeclaratorRest ) |
|
2583 |
* | VOID Ident MethodDeclaratorRest |
|
2584 |
* | TypeParameters (Type | VOID) Ident MethodDeclaratorRest |
|
2585 |
* | Ident ConstructorDeclaratorRest |
|
2586 |
* | TypeParameters Ident ConstructorDeclaratorRest |
|
2587 |
* | ClassOrInterfaceOrEnumDeclaration |
|
2588 |
* ) |
|
2589 |
* InterfaceBodyDeclaration = |
|
2590 |
* ";" |
|
2591 |
* | ModifiersOpt Type Ident |
|
2592 |
* ( ConstantDeclaratorsRest | InterfaceMethodDeclaratorRest ";" ) |
|
2593 |
*/ |
|
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2594 |
protected List<JCTree> classOrInterfaceBodyDeclaration(Name className, boolean isInterface) { |
10815 | 2595 |
if (token.kind == SEMI) { |
2596 |
nextToken(); |
|
6585
189f53daed52
6921495: spurious semicolons in class def cause empty NOPOS blocks
jjg
parents:
6152
diff
changeset
|
2597 |
return List.<JCTree>nil(); |
10 | 2598 |
} else { |
10948 | 2599 |
String dc = token.comment(CommentStyle.JAVADOC); |
10815 | 2600 |
int pos = token.pos; |
10 | 2601 |
JCModifiers mods = modifiersOpt(); |
10815 | 2602 |
if (token.kind == CLASS || |
2603 |
token.kind == INTERFACE || |
|
2604 |
allowEnums && token.kind == ENUM) { |
|
10 | 2605 |
return List.<JCTree>of(classOrInterfaceOrEnumDeclaration(mods, dc)); |
10815 | 2606 |
} else if (token.kind == LBRACE && !isInterface && |
10 | 2607 |
(mods.flags & Flags.StandardFlags & ~Flags.STATIC) == 0 && |
2608 |
mods.annotations.isEmpty()) { |
|
2609 |
return List.<JCTree>of(block(pos, mods.flags)); |
|
2610 |
} else { |
|
10815 | 2611 |
pos = token.pos; |
10 | 2612 |
List<JCTypeParameter> typarams = typeParametersOpt(); |
8033
13d9c18b8fa1
6993305: starting position of a method without modifiers and with type parameters is incorrect
jjg
parents:
8032
diff
changeset
|
2613 |
// if there are type parameters but no modifiers, save the start |
13d9c18b8fa1
6993305: starting position of a method without modifiers and with type parameters is incorrect
jjg
parents:
8032
diff
changeset
|
2614 |
// position of the method in the modifiers. |
13d9c18b8fa1
6993305: starting position of a method without modifiers and with type parameters is incorrect
jjg
parents:
8032
diff
changeset
|
2615 |
if (typarams.nonEmpty() && mods.pos == Position.NOPOS) { |
13d9c18b8fa1
6993305: starting position of a method without modifiers and with type parameters is incorrect
jjg
parents:
8032
diff
changeset
|
2616 |
mods.pos = pos; |
13d9c18b8fa1
6993305: starting position of a method without modifiers and with type parameters is incorrect
jjg
parents:
8032
diff
changeset
|
2617 |
storeEnd(mods, pos); |
13d9c18b8fa1
6993305: starting position of a method without modifiers and with type parameters is incorrect
jjg
parents:
8032
diff
changeset
|
2618 |
} |
10815 | 2619 |
Token tk = token; |
2620 |
pos = token.pos; |
|
10 | 2621 |
JCExpression type; |
10815 | 2622 |
boolean isVoid = token.kind == VOID; |
10 | 2623 |
if (isVoid) { |
2624 |
type = to(F.at(pos).TypeIdent(TypeTags.VOID)); |
|
10815 | 2625 |
nextToken(); |
10 | 2626 |
} else { |
7072 | 2627 |
type = parseType(); |
10 | 2628 |
} |
10950 | 2629 |
if (token.kind == LPAREN && !isInterface && type.hasTag(IDENT)) { |
10815 | 2630 |
if (isInterface || tk.name() != className) |
7076
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
2631 |
error(pos, "invalid.meth.decl.ret.type.req"); |
10 | 2632 |
return List.of(methodDeclaratorRest( |
2633 |
pos, mods, null, names.init, typarams, |
|
2634 |
isInterface, true, dc)); |
|
2635 |
} else { |
|
10815 | 2636 |
pos = token.pos; |
2637 |
Name name = ident(); |
|
2638 |
if (token.kind == LPAREN) { |
|
10 | 2639 |
return List.of(methodDeclaratorRest( |
2640 |
pos, mods, type, name, typarams, |
|
2641 |
isInterface, isVoid, dc)); |
|
2642 |
} else if (!isVoid && typarams.isEmpty()) { |
|
2643 |
List<JCTree> defs = |
|
2644 |
variableDeclaratorsRest(pos, mods, type, name, isInterface, dc, |
|
2645 |
new ListBuffer<JCTree>()).toList(); |
|
10815 | 2646 |
storeEnd(defs.last(), token.endPos); |
10 | 2647 |
accept(SEMI); |
2648 |
return defs; |
|
2649 |
} else { |
|
10815 | 2650 |
pos = token.pos; |
10 | 2651 |
List<JCTree> err = isVoid |
2652 |
? List.<JCTree>of(toP(F.at(pos).MethodDef(mods, name, type, typarams, |
|
2653 |
List.<JCVariableDecl>nil(), List.<JCExpression>nil(), null, null))) |
|
2654 |
: null; |
|
10815 | 2655 |
return List.<JCTree>of(syntaxError(token.pos, err, "expected", LPAREN)); |
10 | 2656 |
} |
2657 |
} |
|
2658 |
} |
|
2659 |
} |
|
2660 |
} |
|
2661 |
||
2662 |
/** MethodDeclaratorRest = |
|
7072 | 2663 |
* FormalParameters BracketsOpt [Throws TypeList] ( MethodBody | [DEFAULT AnnotationValue] ";") |
10 | 2664 |
* VoidMethodDeclaratorRest = |
7072 | 2665 |
* FormalParameters [Throws TypeList] ( MethodBody | ";") |
10 | 2666 |
* InterfaceMethodDeclaratorRest = |
7072 | 2667 |
* FormalParameters BracketsOpt [THROWS TypeList] ";" |
10 | 2668 |
* VoidInterfaceMethodDeclaratorRest = |
7072 | 2669 |
* FormalParameters [THROWS TypeList] ";" |
10 | 2670 |
* ConstructorDeclaratorRest = |
7072 | 2671 |
* "(" FormalParameterListOpt ")" [THROWS TypeList] MethodBody |
10 | 2672 |
*/ |
2673 |
JCTree methodDeclaratorRest(int pos, |
|
2674 |
JCModifiers mods, |
|
2675 |
JCExpression type, |
|
2676 |
Name name, |
|
2677 |
List<JCTypeParameter> typarams, |
|
2678 |
boolean isInterface, boolean isVoid, |
|
2679 |
String dc) { |
|
2680 |
List<JCVariableDecl> params = formalParameters(); |
|
7072 | 2681 |
if (!isVoid) type = bracketsOpt(type); |
10 | 2682 |
List<JCExpression> thrown = List.nil(); |
10815 | 2683 |
if (token.kind == THROWS) { |
2684 |
nextToken(); |
|
10 | 2685 |
thrown = qualidentList(); |
2686 |
} |
|
2687 |
JCBlock body = null; |
|
2688 |
JCExpression defaultValue; |
|
10815 | 2689 |
if (token.kind == LBRACE) { |
10 | 2690 |
body = block(); |
2691 |
defaultValue = null; |
|
2692 |
} else { |
|
10815 | 2693 |
if (token.kind == DEFAULT) { |
10 | 2694 |
accept(DEFAULT); |
2695 |
defaultValue = annotationValue(); |
|
2696 |
} else { |
|
2697 |
defaultValue = null; |
|
2698 |
} |
|
2699 |
accept(SEMI); |
|
10815 | 2700 |
if (token.pos <= errorEndPos) { |
10 | 2701 |
// error recovery |
2702 |
skip(false, true, false, false); |
|
10815 | 2703 |
if (token.kind == LBRACE) { |
10 | 2704 |
body = block(); |
2705 |
} |
|
2706 |
} |
|
2707 |
} |
|
4870
a132763160d7
6919889: assorted position errors in compiler syntax trees
jjg
parents:
4704
diff
changeset
|
2708 |
|
10 | 2709 |
JCMethodDecl result = |
2710 |
toP(F.at(pos).MethodDef(mods, name, type, typarams, |
|
7072 | 2711 |
params, thrown, |
10 | 2712 |
body, defaultValue)); |
2713 |
attach(result, dc); |
|
2714 |
return result; |
|
2715 |
} |
|
2716 |
||
7072 | 2717 |
/** QualidentList = Qualident {"," Qualident} |
10 | 2718 |
*/ |
2719 |
List<JCExpression> qualidentList() { |
|
2720 |
ListBuffer<JCExpression> ts = new ListBuffer<JCExpression>(); |
|
7072 | 2721 |
ts.append(qualident()); |
10815 | 2722 |
while (token.kind == COMMA) { |
2723 |
nextToken(); |
|
7072 | 2724 |
ts.append(qualident()); |
10 | 2725 |
} |
2726 |
return ts.toList(); |
|
2727 |
} |
|
2728 |
||
2729 |
/** TypeParametersOpt = ["<" TypeParameter {"," TypeParameter} ">"] |
|
2730 |
*/ |
|
2731 |
List<JCTypeParameter> typeParametersOpt() { |
|
10815 | 2732 |
if (token.kind == LT) { |
10 | 2733 |
checkGenerics(); |
2734 |
ListBuffer<JCTypeParameter> typarams = new ListBuffer<JCTypeParameter>(); |
|
10815 | 2735 |
nextToken(); |
10 | 2736 |
typarams.append(typeParameter()); |
10815 | 2737 |
while (token.kind == COMMA) { |
2738 |
nextToken(); |
|
10 | 2739 |
typarams.append(typeParameter()); |
2740 |
} |
|
2741 |
accept(GT); |
|
2742 |
return typarams.toList(); |
|
2743 |
} else { |
|
2744 |
return List.nil(); |
|
2745 |
} |
|
2746 |
} |
|
2747 |
||
7072 | 2748 |
/** TypeParameter = TypeVariable [TypeParameterBound] |
10 | 2749 |
* TypeParameterBound = EXTENDS Type {"&" Type} |
2750 |
* TypeVariable = Ident |
|
2751 |
*/ |
|
2752 |
JCTypeParameter typeParameter() { |
|
10815 | 2753 |
int pos = token.pos; |
10 | 2754 |
Name name = ident(); |
2755 |
ListBuffer<JCExpression> bounds = new ListBuffer<JCExpression>(); |
|
10815 | 2756 |
if (token.kind == EXTENDS) { |
2757 |
nextToken(); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2758 |
bounds.append(parseType()); |
10815 | 2759 |
while (token.kind == AMP) { |
2760 |
nextToken(); |
|
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2761 |
bounds.append(parseType()); |
10 | 2762 |
} |
2763 |
} |
|
7072 | 2764 |
return toP(F.at(pos).TypeParameter(name, bounds.toList())); |
10 | 2765 |
} |
2766 |
||
2767 |
/** FormalParameters = "(" [ FormalParameterList ] ")" |
|
2768 |
* FormalParameterList = [ FormalParameterListNovarargs , ] LastFormalParameter |
|
2769 |
* FormalParameterListNovarargs = [ FormalParameterListNovarargs , ] FormalParameter |
|
2770 |
*/ |
|
2771 |
List<JCVariableDecl> formalParameters() { |
|
2772 |
ListBuffer<JCVariableDecl> params = new ListBuffer<JCVariableDecl>(); |
|
2773 |
JCVariableDecl lastParam = null; |
|
2774 |
accept(LPAREN); |
|
10815 | 2775 |
if (token.kind != RPAREN) { |
10 | 2776 |
params.append(lastParam = formalParameter()); |
10815 | 2777 |
while ((lastParam.mods.flags & Flags.VARARGS) == 0 && token.kind == COMMA) { |
2778 |
nextToken(); |
|
10 | 2779 |
params.append(lastParam = formalParameter()); |
2780 |
} |
|
2781 |
} |
|
2782 |
accept(RPAREN); |
|
2783 |
return params.toList(); |
|
2784 |
} |
|
2785 |
||
2786 |
JCModifiers optFinal(long flags) { |
|
2787 |
JCModifiers mods = modifiersOpt(); |
|
2788 |
checkNoMods(mods.flags & ~(Flags.FINAL | Flags.DEPRECATED)); |
|
2789 |
mods.flags |= flags; |
|
2790 |
return mods; |
|
2791 |
} |
|
2792 |
||
2793 |
/** FormalParameter = { FINAL | '@' Annotation } Type VariableDeclaratorId |
|
2794 |
* LastFormalParameter = { FINAL | '@' Annotation } Type '...' Ident | FormalParameter |
|
2795 |
*/ |
|
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2796 |
protected JCVariableDecl formalParameter() { |
10 | 2797 |
JCModifiers mods = optFinal(Flags.PARAMETER); |
1258
1cf37d8837d1
6724118: change JavaCompiler to not use Scanner directly
jjg
parents:
939
diff
changeset
|
2798 |
JCExpression type = parseType(); |
10815 | 2799 |
if (token.kind == ELLIPSIS) { |
10 | 2800 |
checkVarargs(); |
2801 |
mods.flags |= Flags.VARARGS; |
|
10815 | 2802 |
type = to(F.at(token.pos).TypeArray(type)); |
2803 |
nextToken(); |
|
10 | 2804 |
} |
2805 |
return variableDeclaratorId(mods, type); |
|
2806 |
} |
|
2807 |
||
2808 |
/* ---------- auxiliary methods -------------- */ |
|
2809 |
||
7076
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
2810 |
void error(int pos, String key, Object ... args) { |
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
2811 |
log.error(DiagnosticFlag.SYNTAX, pos, key, args); |
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
2812 |
} |
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
2813 |
|
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2814 |
void error(DiagnosticPosition pos, String key, Object ... args) { |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2815 |
log.error(DiagnosticFlag.SYNTAX, pos, key, args); |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2816 |
} |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2817 |
|
7076
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
2818 |
void warning(int pos, String key, Object ... args) { |
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
2819 |
log.warning(pos, key, args); |
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
2820 |
} |
c96fa26247c8
6994946: option to specify only syntax errors as unrecoverable
jjg
parents:
7074
diff
changeset
|
2821 |
|
10 | 2822 |
/** Check that given tree is a legal expression statement. |
2823 |
*/ |
|
2824 |
protected JCExpression checkExprStat(JCExpression t) { |
|
2825 |
switch(t.getTag()) { |
|
10950 | 2826 |
case PREINC: case PREDEC: |
2827 |
case POSTINC: case POSTDEC: |
|
2828 |
case ASSIGN: |
|
2829 |
case BITOR_ASG: case BITXOR_ASG: case BITAND_ASG: |
|
2830 |
case SL_ASG: case SR_ASG: case USR_ASG: |
|
2831 |
case PLUS_ASG: case MINUS_ASG: |
|
2832 |
case MUL_ASG: case DIV_ASG: case MOD_ASG: |
|
2833 |
case APPLY: case NEWCLASS: |
|
2834 |
case ERRONEOUS: |
|
10 | 2835 |
return t; |
2836 |
default: |
|
10455
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2837 |
JCExpression ret = F.at(t.pos).Erroneous(List.<JCTree>of(t)); |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2838 |
error(ret, "not.stmt"); |
3d070be0fff8
7073631: (javac) javac parser improvements for error position reporting
ksrini
parents:
10200
diff
changeset
|
2839 |
return ret; |
10 | 2840 |
} |
2841 |
} |
|
2842 |
||
2843 |
/** Return precedence of operator represented by token, |
|
2844 |
* -1 if token is not a binary operator. @see TreeInfo.opPrec |
|
2845 |
*/ |
|
10815 | 2846 |
static int prec(TokenKind token) { |
10950 | 2847 |
JCTree.Tag oc = optag(token); |
2848 |
return (oc != NO_TAG) ? TreeInfo.opPrec(oc) : -1; |
|
10 | 2849 |
} |
2850 |
||
5013
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2851 |
/** |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2852 |
* Return the lesser of two positions, making allowance for either one |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2853 |
* being unset. |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2854 |
*/ |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2855 |
static int earlier(int pos1, int pos2) { |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2856 |
if (pos1 == Position.NOPOS) |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2857 |
return pos2; |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2858 |
if (pos2 == Position.NOPOS) |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2859 |
return pos1; |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2860 |
return (pos1 < pos2 ? pos1 : pos2); |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2861 |
} |
e942b2e52479
6931927: position issues with synthesized anonymous class
jjg
parents:
4870
diff
changeset
|
2862 |
|
10 | 2863 |
/** Return operation tag of binary operator represented by token, |
10950 | 2864 |
* No_TAG if token is not a binary operator. |
10 | 2865 |
*/ |
10950 | 2866 |
static JCTree.Tag optag(TokenKind token) { |
10 | 2867 |
switch (token) { |
2868 |
case BARBAR: |
|
10950 | 2869 |
return OR; |
10 | 2870 |
case AMPAMP: |
10950 | 2871 |
return AND; |
10 | 2872 |
case BAR: |
10950 | 2873 |
return BITOR; |
10 | 2874 |
case BAREQ: |
10950 | 2875 |
return BITOR_ASG; |
10 | 2876 |
case CARET: |
10950 | 2877 |
return BITXOR; |
10 | 2878 |
case CARETEQ: |
10950 | 2879 |
return BITXOR_ASG; |
10 | 2880 |
case AMP: |
10950 | 2881 |
return BITAND; |
10 | 2882 |
case AMPEQ: |
10950 | 2883 |
return BITAND_ASG; |
10 | 2884 |
case EQEQ: |
10950 | 2885 |
return JCTree.Tag.EQ; |
10 | 2886 |
case BANGEQ: |
10950 | 2887 |
return NE; |
10 | 2888 |
case LT: |
10950 | 2889 |
return JCTree.Tag.LT; |
10 | 2890 |
case GT: |
10950 | 2891 |
return JCTree.Tag.GT; |
10 | 2892 |
case LTEQ: |
10950 | 2893 |
return LE; |
10 | 2894 |
case GTEQ: |
10950 | 2895 |
return GE; |
10 | 2896 |
case LTLT: |
10950 | 2897 |
return SL; |
10 | 2898 |
case LTLTEQ: |
10950 | 2899 |
return SL_ASG; |
10 | 2900 |
case GTGT: |
10950 | 2901 |
return SR; |
10 | 2902 |
case GTGTEQ: |
10950 | 2903 |
return SR_ASG; |
10 | 2904 |
case GTGTGT: |
10950 | 2905 |
return USR; |
10 | 2906 |
case GTGTGTEQ: |
10950 | 2907 |
return USR_ASG; |
10 | 2908 |
case PLUS: |
10950 | 2909 |
return JCTree.Tag.PLUS; |
10 | 2910 |
case PLUSEQ: |
10950 | 2911 |
return PLUS_ASG; |
10 | 2912 |
case SUB: |
10950 | 2913 |
return MINUS; |
10 | 2914 |
case SUBEQ: |
10950 | 2915 |
return MINUS_ASG; |
10 | 2916 |
case STAR: |
10950 | 2917 |
return MUL; |
10 | 2918 |
case STAREQ: |
10950 | 2919 |
return MUL_ASG; |
10 | 2920 |
case SLASH: |
10950 | 2921 |
return DIV; |
10 | 2922 |
case SLASHEQ: |
10950 | 2923 |
return DIV_ASG; |
10 | 2924 |
case PERCENT: |
10950 | 2925 |
return MOD; |
10 | 2926 |
case PERCENTEQ: |
10950 | 2927 |
return MOD_ASG; |
10 | 2928 |
case INSTANCEOF: |
10950 | 2929 |
return TYPETEST; |
10 | 2930 |
default: |
10950 | 2931 |
return NO_TAG; |
10 | 2932 |
} |
2933 |
} |
|
2934 |
||
2935 |
/** Return operation tag of unary operator represented by token, |
|
10950 | 2936 |
* No_TAG if token is not a binary operator. |
10 | 2937 |
*/ |
10950 | 2938 |
static JCTree.Tag unoptag(TokenKind token) { |
10 | 2939 |
switch (token) { |
2940 |
case PLUS: |
|
10950 | 2941 |
return POS; |
10 | 2942 |
case SUB: |
10950 | 2943 |
return NEG; |
10 | 2944 |
case BANG: |
10950 | 2945 |
return NOT; |
10 | 2946 |
case TILDE: |
10950 | 2947 |
return COMPL; |
10 | 2948 |
case PLUSPLUS: |
10950 | 2949 |
return PREINC; |
10 | 2950 |
case SUBSUB: |
10950 | 2951 |
return PREDEC; |
10 | 2952 |
default: |
10950 | 2953 |
return NO_TAG; |
10 | 2954 |
} |
2955 |
} |
|
2956 |
||
2957 |
/** Return type tag of basic type represented by token, |
|
2958 |
* -1 if token is not a basic type identifier. |
|
2959 |
*/ |
|
10815 | 2960 |
static int typetag(TokenKind token) { |
10 | 2961 |
switch (token) { |
2962 |
case BYTE: |
|
2963 |
return TypeTags.BYTE; |
|
2964 |
case CHAR: |
|
2965 |
return TypeTags.CHAR; |
|
2966 |
case SHORT: |
|
2967 |
return TypeTags.SHORT; |
|
2968 |
case INT: |
|
2969 |
return TypeTags.INT; |
|
2970 |
case LONG: |
|
2971 |
return TypeTags.LONG; |
|
2972 |
case FLOAT: |
|
2973 |
return TypeTags.FLOAT; |
|
2974 |
case DOUBLE: |
|
2975 |
return TypeTags.DOUBLE; |
|
2976 |
case BOOLEAN: |
|
2977 |
return TypeTags.BOOLEAN; |
|
2978 |
default: |
|
2979 |
return -1; |
|
2980 |
} |
|
2981 |
} |
|
2982 |
||
2983 |
void checkGenerics() { |
|
2984 |
if (!allowGenerics) { |
|
10815 | 2985 |
error(token.pos, "generics.not.supported.in.source", source.name); |
10 | 2986 |
allowGenerics = true; |
2987 |
} |
|
2988 |
} |
|
2989 |
void checkVarargs() { |
|
2990 |
if (!allowVarargs) { |
|
10815 | 2991 |
error(token.pos, "varargs.not.supported.in.source", source.name); |
10 | 2992 |
allowVarargs = true; |
2993 |
} |
|
2994 |
} |
|
2995 |
void checkForeach() { |
|
2996 |
if (!allowForeach) { |
|
10815 | 2997 |
error(token.pos, "foreach.not.supported.in.source", source.name); |
10 | 2998 |
allowForeach = true; |
2999 |
} |
|
3000 |
} |
|
3001 |
void checkStaticImports() { |
|
3002 |
if (!allowStaticImport) { |
|
10815 | 3003 |
error(token.pos, "static.import.not.supported.in.source", source.name); |
10 | 3004 |
allowStaticImport = true; |
3005 |
} |
|
3006 |
} |
|
3007 |
void checkAnnotations() { |
|
3008 |
if (!allowAnnotations) { |
|
10815 | 3009 |
error(token.pos, "annotations.not.supported.in.source", source.name); |
10 | 3010 |
allowAnnotations = true; |
3011 |
} |
|
3012 |
} |
|
5321
c8efe769cb3b
6939620: Switch to 'complex' diamond inference scheme
mcimadamore
parents:
5320
diff
changeset
|
3013 |
void checkDiamond() { |
c8efe769cb3b
6939620: Switch to 'complex' diamond inference scheme
mcimadamore
parents:
5320
diff
changeset
|
3014 |
if (!allowDiamond) { |
10815 | 3015 |
error(token.pos, "diamond.not.supported.in.source", source.name); |
5321
c8efe769cb3b
6939620: Switch to 'complex' diamond inference scheme
mcimadamore
parents:
5320
diff
changeset
|
3016 |
allowDiamond = true; |
c8efe769cb3b
6939620: Switch to 'complex' diamond inference scheme
mcimadamore
parents:
5320
diff
changeset
|
3017 |
} |
c8efe769cb3b
6939620: Switch to 'complex' diamond inference scheme
mcimadamore
parents:
5320
diff
changeset
|
3018 |
} |
5492
515e4b33b335
6943289: Project Coin: Improved Exception Handling for Java (aka 'multicatch')
mcimadamore
parents:
5321
diff
changeset
|
3019 |
void checkMulticatch() { |
515e4b33b335
6943289: Project Coin: Improved Exception Handling for Java (aka 'multicatch')
mcimadamore
parents:
5321
diff
changeset
|
3020 |
if (!allowMulticatch) { |
10815 | 3021 |
error(token.pos, "multicatch.not.supported.in.source", source.name); |
5492
515e4b33b335
6943289: Project Coin: Improved Exception Handling for Java (aka 'multicatch')
mcimadamore
parents:
5321
diff
changeset
|
3022 |
allowMulticatch = true; |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
3023 |
} |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
3024 |
} |
7211
163fe60f63de
6970016: Clean up ARM/try-with-resources implementation
mcimadamore
parents:
7076
diff
changeset
|
3025 |
void checkTryWithResources() { |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
3026 |
if (!allowTWR) { |
10815 | 3027 |
error(token.pos, "try.with.resources.not.supported.in.source", source.name); |
6148
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
3028 |
allowTWR = true; |
3a8158299c51
6911256: Project Coin: Support Automatic Resource Management (ARM) blocks in the compiler
darcy
parents:
6146
diff
changeset
|
3029 |
} |
5492
515e4b33b335
6943289: Project Coin: Improved Exception Handling for Java (aka 'multicatch')
mcimadamore
parents:
5321
diff
changeset
|
3030 |
} |
10 | 3031 |
} |