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/*
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* Copyright (c) 2014, 2015, 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 jdk.jshell;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.List;
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import java.util.Locale;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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import javax.lang.model.element.Modifier;
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import com.sun.source.tree.ArrayTypeTree;
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import com.sun.source.tree.AssignmentTree;
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import com.sun.source.tree.ClassTree;
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import com.sun.source.tree.ExpressionTree;
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import com.sun.source.tree.IdentifierTree;
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import com.sun.source.tree.MethodTree;
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import com.sun.source.tree.ModifiersTree;
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import com.sun.source.tree.Tree;
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import com.sun.source.tree.VariableTree;
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import com.sun.tools.javac.tree.JCTree;
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import com.sun.tools.javac.tree.Pretty;
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import java.io.IOException;
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import java.io.StringWriter;
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import java.io.Writer;
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import java.util.LinkedHashSet;
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import java.util.Set;
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import jdk.jshell.ClassTracker.ClassInfo;
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import jdk.jshell.Key.ErroneousKey;
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import jdk.jshell.Key.MethodKey;
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import jdk.jshell.Snippet.SubKind;
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import jdk.jshell.TaskFactory.AnalyzeTask;
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import jdk.jshell.TaskFactory.BaseTask;
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import jdk.jshell.TaskFactory.CompileTask;
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import jdk.jshell.TaskFactory.ParseTask;
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import jdk.jshell.TreeDissector.ExpressionInfo;
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import jdk.jshell.Wrap.Range;
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import jdk.jshell.Snippet.Status;
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import static java.util.stream.Collectors.toList;
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import static java.util.stream.Collectors.toSet;
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import static jdk.internal.jshell.debug.InternalDebugControl.DBG_GEN;
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import static jdk.jshell.Util.*;
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import static jdk.internal.jshell.remote.RemoteCodes.DOIT_METHOD_NAME;
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import static jdk.internal.jshell.remote.RemoteCodes.prefixPattern;
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import static jdk.jshell.Snippet.SubKind.SINGLE_TYPE_IMPORT_SUBKIND;
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import static jdk.jshell.Snippet.SubKind.SINGLE_STATIC_IMPORT_SUBKIND;
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import static jdk.jshell.Snippet.SubKind.TYPE_IMPORT_ON_DEMAND_SUBKIND;
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import static jdk.jshell.Snippet.SubKind.STATIC_IMPORT_ON_DEMAND_SUBKIND;
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/**
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* The Evaluation Engine. Source internal analysis, wrapping control,
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* compilation, declaration. redefinition, replacement, and execution.
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*
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* @author Robert Field
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*/
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class Eval {
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private static final Pattern IMPORT_PATTERN = Pattern.compile("import\\p{javaWhitespace}+(?<static>static\\p{javaWhitespace}+)?(?<fullname>[\\p{L}\\p{N}_\\$\\.]+\\.(?<name>[\\p{L}\\p{N}_\\$]+|\\*))");
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private int varNumber = 0;
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private final JShell state;
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Eval(JShell state) {
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this.state = state;
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}
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List<SnippetEvent> eval(String userSource) throws IllegalStateException {
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String compileSource = Util.trimEnd(new MaskCommentsAndModifiers(userSource, false).cleared());
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if (compileSource.length() == 0) {
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return Collections.emptyList();
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}
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// String folding messes up position information.
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ParseTask pt = state.taskFactory.new ParseTask(compileSource);
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if (pt.getDiagnostics().hasOtherThanNotStatementErrors()) {
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return compileFailResult(pt, userSource);
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}
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List<? extends Tree> units = pt.units();
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if (units.isEmpty()) {
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return compileFailResult(pt, userSource);
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}
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// Erase illegal modifiers
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compileSource = new MaskCommentsAndModifiers(compileSource, true).cleared();
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Tree unitTree = units.get(0);
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state.debug(DBG_GEN, "Kind: %s -- %s\n", unitTree.getKind(), unitTree);
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switch (unitTree.getKind()) {
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case IMPORT:
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return processImport(userSource, compileSource);
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case VARIABLE:
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return processVariables(userSource, units, compileSource, pt);
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case EXPRESSION_STATEMENT:
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return processExpression(userSource, compileSource);
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case CLASS:
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return processClass(userSource, unitTree, compileSource, SubKind.CLASS_SUBKIND, pt);
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case ENUM:
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return processClass(userSource, unitTree, compileSource, SubKind.ENUM_SUBKIND, pt);
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case ANNOTATION_TYPE:
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return processClass(userSource, unitTree, compileSource, SubKind.ANNOTATION_TYPE_SUBKIND, pt);
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case INTERFACE:
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return processClass(userSource, unitTree, compileSource, SubKind.INTERFACE_SUBKIND, pt);
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case METHOD:
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return processMethod(userSource, unitTree, compileSource, pt);
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default:
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return processStatement(userSource, compileSource);
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}
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}
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private List<SnippetEvent> processImport(String userSource, String compileSource) {
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Wrap guts = Wrap.importWrap(compileSource);
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Matcher mat = IMPORT_PATTERN.matcher(compileSource);
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String fullname;
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String name;
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boolean isStatic;
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if (mat.find()) {
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isStatic = mat.group("static") != null;
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name = mat.group("name");
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fullname = mat.group("fullname");
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} else {
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// bad import -- fake it
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isStatic = compileSource.contains("static");
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name = fullname = compileSource;
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}
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String fullkey = (isStatic ? "static-" : "") + fullname;
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boolean isStar = name.equals("*");
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String keyName = isStar
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? fullname
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: name;
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SubKind snippetKind = isStar
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? (isStatic ? STATIC_IMPORT_ON_DEMAND_SUBKIND : TYPE_IMPORT_ON_DEMAND_SUBKIND)
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: (isStatic ? SINGLE_STATIC_IMPORT_SUBKIND : SINGLE_TYPE_IMPORT_SUBKIND);
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Snippet snip = new ImportSnippet(state.keyMap.keyForImport(keyName, snippetKind),
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userSource, guts, fullname, name, snippetKind, fullkey, isStatic, isStar);
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return declare(snip);
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}
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private static class EvalPretty extends Pretty {
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private final Writer out;
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public EvalPretty(Writer writer, boolean bln) {
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super(writer, bln);
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this.out = writer;
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}
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/**
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* Print string, DO NOT replacing all non-ascii character with unicode
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* escapes.
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*/
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@Override
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public void print(Object o) throws IOException {
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out.write(o.toString());
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}
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static String prettyExpr(JCTree tree, boolean bln) {
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StringWriter out = new StringWriter();
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try {
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new EvalPretty(out, bln).printExpr(tree);
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} catch (IOException e) {
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throw new AssertionError(e);
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}
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return out.toString();
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}
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}
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private List<SnippetEvent> processVariables(String userSource, List<? extends Tree> units, String compileSource, ParseTask pt) {
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List<SnippetEvent> allEvents = new ArrayList<>();
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TreeDissector dis = new TreeDissector(pt);
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for (Tree unitTree : units) {
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VariableTree vt = (VariableTree) unitTree;
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String name = vt.getName().toString();
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String typeName = EvalPretty.prettyExpr((JCTree) vt.getType(), false);
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Tree baseType = vt.getType();
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TreeDependencyScanner tds = new TreeDependencyScanner();
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tds.scan(baseType); // Not dependent on initializer
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StringBuilder sbBrackets = new StringBuilder();
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while (baseType instanceof ArrayTypeTree) {
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//TODO handle annotations too
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baseType = ((ArrayTypeTree) baseType).getType();
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sbBrackets.append("[]");
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}
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Range rtype = dis.treeToRange(baseType);
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Range runit = dis.treeToRange(vt);
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runit = new Range(runit.begin, runit.end - 1);
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ExpressionTree it = vt.getInitializer();
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Range rinit = null;
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int nameMax = runit.end - 1;
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SubKind subkind;
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if (it != null) {
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subkind = SubKind.VAR_DECLARATION_WITH_INITIALIZER_SUBKIND;
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rinit = dis.treeToRange(it);
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nameMax = rinit.begin - 1;
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} else {
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subkind = SubKind.VAR_DECLARATION_SUBKIND;
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}
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int nameStart = compileSource.lastIndexOf(name, nameMax);
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if (nameStart < 0) {
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throw new AssertionError("Name '" + name + "' not found");
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}
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int nameEnd = nameStart + name.length();
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Range rname = new Range(nameStart, nameEnd);
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Wrap guts = Wrap.varWrap(compileSource, rtype, sbBrackets.toString(), rname, rinit);
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Snippet snip = new VarSnippet(state.keyMap.keyForVariable(name), userSource, guts,
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name, subkind, typeName,
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tds.declareReferences());
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DiagList modDiag = modifierDiagnostics(vt.getModifiers(), dis, true);
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List<SnippetEvent> res1 = declare(snip, modDiag);
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allEvents.addAll(res1);
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}
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return allEvents;
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}
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private List<SnippetEvent> processExpression(String userSource, String compileSource) {
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String name = null;
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ExpressionInfo ei = typeOfExpression(compileSource);
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ExpressionTree assignVar;
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Wrap guts;
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Snippet snip;
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if (ei != null && ei.isNonVoid) {
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String typeName = ei.typeName;
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SubKind subkind;
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if (ei.tree instanceof IdentifierTree) {
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IdentifierTree id = (IdentifierTree) ei.tree;
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name = id.getName().toString();
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subkind = SubKind.VAR_VALUE_SUBKIND;
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} else if (ei.tree instanceof AssignmentTree
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&& (assignVar = ((AssignmentTree) ei.tree).getVariable()) instanceof IdentifierTree) {
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name = assignVar.toString();
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subkind = SubKind.ASSIGNMENT_SUBKIND;
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} else {
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subkind = SubKind.OTHER_EXPRESSION_SUBKIND;
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}
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if (shouldGenTempVar(subkind)) {
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if (state.tempVariableNameGenerator != null) {
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name = state.tempVariableNameGenerator.get();
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}
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while (name == null || state.keyMap.doesVariableNameExist(name)) {
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name = "$" + ++varNumber;
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}
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guts = Wrap.tempVarWrap(compileSource, typeName, name);
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Collection<String> declareReferences = null; //TODO
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snip = new VarSnippet(state.keyMap.keyForVariable(name), userSource, guts,
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name, SubKind.TEMP_VAR_EXPRESSION_SUBKIND, typeName, declareReferences);
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} else {
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guts = Wrap.methodReturnWrap(compileSource);
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snip = new ExpressionSnippet(state.keyMap.keyForExpression(name, typeName), userSource, guts,
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name, subkind);
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}
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} else {
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guts = Wrap.methodWrap(compileSource);
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if (ei == null) {
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// We got no type info, check for not a statement by trying
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AnalyzeTask at = trialCompile(guts);
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if (at.getDiagnostics().hasNotStatement()) {
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guts = Wrap.methodReturnWrap(compileSource);
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at = trialCompile(guts);
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}
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if (at.hasErrors()) {
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return compileFailResult(at, userSource);
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}
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}
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snip = new StatementSnippet(state.keyMap.keyForStatement(), userSource, guts);
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}
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return declare(snip);
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}
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private List<SnippetEvent> processClass(String userSource, Tree unitTree, String compileSource, SubKind snippetKind, ParseTask pt) {
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TreeDependencyScanner tds = new TreeDependencyScanner();
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tds.scan(unitTree);
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TreeDissector dis = new TreeDissector(pt);
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ClassTree klassTree = (ClassTree) unitTree;
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String name = klassTree.getSimpleName().toString();
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Wrap guts = Wrap.classMemberWrap(compileSource);
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Wrap corralled = null; //TODO
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Snippet snip = new TypeDeclSnippet(state.keyMap.keyForClass(name), userSource, guts,
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name, snippetKind,
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corralled, tds.declareReferences(), tds.bodyReferences());
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DiagList modDiag = modifierDiagnostics(klassTree.getModifiers(), dis, false);
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return declare(snip, modDiag);
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}
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private List<SnippetEvent> processStatement(String userSource, String compileSource) {
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Wrap guts = Wrap.methodWrap(compileSource);
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// Check for unreachable by trying
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AnalyzeTask at = trialCompile(guts);
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if (at.hasErrors()) {
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if (at.getDiagnostics().hasUnreachableError()) {
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guts = Wrap.methodUnreachableSemiWrap(compileSource);
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at = trialCompile(guts);
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if (at.hasErrors()) {
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if (at.getDiagnostics().hasUnreachableError()) {
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// Without ending semicolon
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guts = Wrap.methodUnreachableWrap(compileSource);
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at = trialCompile(guts);
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}
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if (at.hasErrors()) {
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return compileFailResult(at, userSource);
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}
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}
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} else {
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return compileFailResult(at, userSource);
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}
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}
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Snippet snip = new StatementSnippet(state.keyMap.keyForStatement(), userSource, guts);
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return declare(snip);
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}
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private OuterWrap wrapInClass(String className, Set<Key> except, String userSource, Wrap guts, Collection<Snippet> plus) {
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String imports = state.maps.packageAndImportsExcept(except, plus);
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return OuterWrap.wrapInClass(state.maps.packageName(), className, imports, userSource, guts);
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}
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OuterWrap wrapInClass(Snippet snip, Set<Key> except, Wrap guts, Collection<Snippet> plus) {
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return wrapInClass(snip.className(), except, snip.source(), guts, plus);
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}
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private AnalyzeTask trialCompile(Wrap guts) {
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OuterWrap outer = wrapInClass(REPL_DOESNOTMATTER_CLASS_NAME,
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Collections.emptySet(), "", guts, null);
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return state.taskFactory.new AnalyzeTask(outer);
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}
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private List<SnippetEvent> processMethod(String userSource, Tree unitTree, String compileSource, ParseTask pt) {
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TreeDependencyScanner tds = new TreeDependencyScanner();
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tds.scan(unitTree);
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MethodTree mt = (MethodTree) unitTree;
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TreeDissector dis = new TreeDissector(pt);
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DiagList modDiag = modifierDiagnostics(mt.getModifiers(), dis, true);
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if (modDiag.hasErrors()) {
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return compileFailResult(modDiag, userSource);
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}
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String unitName = mt.getName().toString();
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Wrap guts = Wrap.classMemberWrap(compileSource);
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Range modRange = dis.treeToRange(mt.getModifiers());
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Range tpRange = dis.treeListToRange(mt.getTypeParameters());
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Range typeRange = dis.treeToRange(mt.getReturnType());
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String name = mt.getName().toString();
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Range paramRange = dis.treeListToRange(mt.getParameters());
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Range throwsRange = dis.treeListToRange(mt.getThrows());
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String parameterTypes
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= mt.getParameters()
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.stream()
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|
374 |
.map(param -> dis.treeToRange(param.getType()).part(compileSource))
|
|
375 |
.collect(Collectors.joining(","));
|
|
376 |
String signature = "(" + parameterTypes + ")" + typeRange.part(compileSource);
|
|
377 |
|
|
378 |
MethodKey key = state.keyMap.keyForMethod(name, parameterTypes);
|
|
379 |
// rewrap with correct Key index
|
|
380 |
Wrap corralled = Wrap.corralledMethod(compileSource,
|
|
381 |
modRange, tpRange, typeRange, name, paramRange, throwsRange, key.index());
|
|
382 |
Snippet snip = new MethodSnippet(key, userSource, guts,
|
|
383 |
unitName, signature,
|
|
384 |
corralled, tds.declareReferences(), tds.bodyReferences());
|
|
385 |
return declare(snip, modDiag);
|
|
386 |
}
|
|
387 |
|
|
388 |
/**
|
|
389 |
* The snippet has failed, return with the rejected event
|
|
390 |
*
|
|
391 |
* @param xt the task from which to extract the failure diagnostics
|
|
392 |
* @param userSource the incoming bad user source
|
|
393 |
* @return a rejected snippet event
|
|
394 |
*/
|
|
395 |
private List<SnippetEvent> compileFailResult(BaseTask xt, String userSource) {
|
|
396 |
return compileFailResult(xt.getDiagnostics(), userSource);
|
|
397 |
}
|
|
398 |
|
|
399 |
/**
|
|
400 |
* The snippet has failed, return with the rejected event
|
|
401 |
*
|
|
402 |
* @param diags the failure diagnostics
|
|
403 |
* @param userSource the incoming bad user source
|
|
404 |
* @return a rejected snippet event
|
|
405 |
*/
|
|
406 |
private List<SnippetEvent> compileFailResult(DiagList diags, String userSource) {
|
|
407 |
ErroneousKey key = state.keyMap.keyForErroneous();
|
|
408 |
Snippet snip = new ErroneousSnippet(key, userSource, null, SubKind.UNKNOWN_SUBKIND);
|
|
409 |
snip.setFailed(diags);
|
|
410 |
state.maps.installSnippet(snip);
|
|
411 |
return Collections.singletonList(new SnippetEvent(
|
|
412 |
snip, Status.NONEXISTENT, Status.REJECTED,
|
|
413 |
false, null, null, null)
|
|
414 |
);
|
|
415 |
}
|
|
416 |
|
|
417 |
private ExpressionInfo typeOfExpression(String expression) {
|
|
418 |
Wrap guts = Wrap.methodReturnWrap(expression);
|
|
419 |
TaskFactory.AnalyzeTask at = trialCompile(guts);
|
|
420 |
if (!at.hasErrors() && at.cuTree() != null) {
|
|
421 |
return new TreeDissector(at)
|
|
422 |
.typeOfReturnStatement(at.messages(), state.maps::fullClassNameAndPackageToClass);
|
|
423 |
}
|
|
424 |
return null;
|
|
425 |
}
|
|
426 |
|
|
427 |
/**
|
|
428 |
* Should a temp var wrap the expression. TODO make this user configurable.
|
|
429 |
*
|
|
430 |
* @param snippetKind
|
|
431 |
* @return
|
|
432 |
*/
|
|
433 |
private boolean shouldGenTempVar(SubKind snippetKind) {
|
|
434 |
return snippetKind == SubKind.OTHER_EXPRESSION_SUBKIND;
|
|
435 |
}
|
|
436 |
|
|
437 |
List<SnippetEvent> drop(Snippet si) {
|
|
438 |
Unit c = new Unit(state, si);
|
|
439 |
|
|
440 |
Set<Unit> ins = c.dependents().collect(toSet());
|
|
441 |
Set<Unit> outs = compileAndLoad(ins);
|
|
442 |
|
|
443 |
return events(c, outs, null, null);
|
|
444 |
}
|
|
445 |
|
|
446 |
private List<SnippetEvent> declare(Snippet si) {
|
|
447 |
return declare(si, new DiagList());
|
|
448 |
}
|
|
449 |
|
|
450 |
private List<SnippetEvent> declare(Snippet si, DiagList generatedDiagnostics) {
|
|
451 |
Unit c = new Unit(state, si, null, generatedDiagnostics);
|
|
452 |
|
|
453 |
// Ignores duplicates
|
|
454 |
//TODO: remove, modify, or move to edit
|
|
455 |
if (c.isRedundant()) {
|
|
456 |
return Collections.emptyList();
|
|
457 |
}
|
|
458 |
|
|
459 |
Set<Unit> ins = new LinkedHashSet<>();
|
|
460 |
ins.add(c);
|
|
461 |
Set<Unit> outs = compileAndLoad(ins);
|
|
462 |
|
|
463 |
if (!si.status().isDefined
|
|
464 |
&& si.diagnostics().isEmpty()
|
|
465 |
&& si.unresolved().isEmpty()) {
|
|
466 |
// did not succeed, but no record of it, extract from others
|
|
467 |
si.setDiagnostics(outs.stream()
|
|
468 |
.flatMap(u -> u.snippet().diagnostics().stream())
|
|
469 |
.collect(Collectors.toCollection(DiagList::new)));
|
|
470 |
}
|
|
471 |
|
|
472 |
// If appropriate, execute the snippet
|
|
473 |
String value = null;
|
|
474 |
Exception exception = null;
|
|
475 |
if (si.isExecutable() && si.status().isDefined) {
|
|
476 |
try {
|
|
477 |
value = state.executionControl().commandInvoke(state.maps.classFullName(si));
|
|
478 |
value = si.subKind().hasValue()
|
|
479 |
? expunge(value)
|
|
480 |
: "";
|
|
481 |
} catch (EvalException ex) {
|
|
482 |
exception = translateExecutionException(ex);
|
|
483 |
} catch (UnresolvedReferenceException ex) {
|
|
484 |
exception = ex;
|
|
485 |
}
|
|
486 |
}
|
|
487 |
return events(c, outs, value, exception);
|
|
488 |
}
|
|
489 |
|
|
490 |
private List<SnippetEvent> events(Unit c, Collection<Unit> outs, String value, Exception exception) {
|
|
491 |
List<SnippetEvent> events = new ArrayList<>();
|
|
492 |
events.add(c.event(value, exception));
|
|
493 |
events.addAll(outs.stream()
|
|
494 |
.filter(u -> u != c)
|
|
495 |
.map(u -> u.event(null, null))
|
|
496 |
.collect(Collectors.toList()));
|
|
497 |
events.addAll(outs.stream()
|
|
498 |
.flatMap(u -> u.secondaryEvents().stream())
|
|
499 |
.collect(Collectors.toList()));
|
|
500 |
//System.err.printf("Events: %s\n", events);
|
|
501 |
return events;
|
|
502 |
}
|
|
503 |
|
|
504 |
private Set<Unit> compileAndLoad(Set<Unit> ins) {
|
|
505 |
if (ins.isEmpty()) {
|
|
506 |
return ins;
|
|
507 |
}
|
|
508 |
Set<Unit> replaced = new LinkedHashSet<>();
|
|
509 |
while (true) {
|
|
510 |
state.debug(DBG_GEN, "compileAndLoad %s\n", ins);
|
|
511 |
|
|
512 |
ins.stream().forEach(u -> u.initialize(ins));
|
|
513 |
AnalyzeTask at = state.taskFactory.new AnalyzeTask(ins);
|
|
514 |
ins.stream().forEach(u -> u.setDiagnostics(at));
|
|
515 |
// corral any Snippets that need it
|
|
516 |
if (ins.stream().filter(u -> u.corralIfNeeded(ins)).count() > 0) {
|
|
517 |
// if any were corralled, re-analyze everything
|
|
518 |
AnalyzeTask cat = state.taskFactory.new AnalyzeTask(ins);
|
|
519 |
ins.stream().forEach(u -> u.setCorralledDiagnostics(cat));
|
|
520 |
}
|
|
521 |
ins.stream().forEach(u -> u.setStatus());
|
|
522 |
// compile and load the legit snippets
|
|
523 |
boolean success;
|
|
524 |
while (true) {
|
|
525 |
List<Unit> legit = ins.stream()
|
|
526 |
.filter(u -> u.isDefined())
|
|
527 |
.collect(toList());
|
|
528 |
state.debug(DBG_GEN, "compileAndLoad ins = %s -- legit = %s\n",
|
|
529 |
ins, legit);
|
|
530 |
if (legit.isEmpty()) {
|
|
531 |
// no class files can be generated
|
|
532 |
success = true;
|
|
533 |
} else {
|
|
534 |
// re-wrap with legit imports
|
|
535 |
legit.stream().forEach(u -> u.setWrap(ins, legit));
|
|
536 |
|
|
537 |
// generate class files for those capable
|
|
538 |
CompileTask ct = state.taskFactory.new CompileTask(legit);
|
|
539 |
if (!ct.compile()) {
|
|
540 |
// oy! compile failed because of recursive new unresolved
|
|
541 |
if (legit.stream()
|
|
542 |
.filter(u -> u.smashingErrorDiagnostics(ct))
|
|
543 |
.count() > 0) {
|
|
544 |
// try again, with the erroreous removed
|
|
545 |
continue;
|
|
546 |
} else {
|
|
547 |
state.debug(DBG_GEN, "Should never happen error-less failure - %s\n",
|
|
548 |
legit);
|
|
549 |
}
|
|
550 |
}
|
|
551 |
|
|
552 |
// load all new classes
|
|
553 |
load(legit.stream()
|
|
554 |
.flatMap(u -> u.classesToLoad(ct.classInfoList(u)))
|
|
555 |
.collect(toList()));
|
|
556 |
// attempt to redefine the remaining classes
|
|
557 |
List<Unit> toReplace = legit.stream()
|
|
558 |
.filter(u -> !u.doRedefines())
|
|
559 |
.collect(toList());
|
|
560 |
|
|
561 |
// prevent alternating redefine/replace cyclic dependency
|
|
562 |
// loop by replacing all that have been replaced
|
|
563 |
if (!toReplace.isEmpty()) {
|
|
564 |
replaced.addAll(toReplace);
|
|
565 |
replaced.stream().forEach(u -> u.markForReplacement());
|
|
566 |
}
|
|
567 |
|
|
568 |
success = toReplace.isEmpty();
|
|
569 |
}
|
|
570 |
break;
|
|
571 |
}
|
|
572 |
|
|
573 |
// add any new dependencies to the working set
|
|
574 |
List<Unit> newDependencies = ins.stream()
|
|
575 |
.flatMap(u -> u.effectedDependents())
|
|
576 |
.collect(toList());
|
|
577 |
state.debug(DBG_GEN, "compileAndLoad %s -- deps: %s success: %s\n",
|
|
578 |
ins, newDependencies, success);
|
|
579 |
if (!ins.addAll(newDependencies) && success) {
|
|
580 |
// all classes that could not be directly loaded (because they
|
|
581 |
// are new) have been redefined, and no new dependnencies were
|
|
582 |
// identified
|
|
583 |
ins.stream().forEach(u -> u.finish());
|
|
584 |
return ins;
|
|
585 |
}
|
|
586 |
}
|
|
587 |
}
|
|
588 |
|
|
589 |
private void load(List<ClassInfo> cil) {
|
|
590 |
if (!cil.isEmpty()) {
|
|
591 |
state.executionControl().commandLoad(cil);
|
|
592 |
}
|
|
593 |
}
|
|
594 |
|
|
595 |
private EvalException translateExecutionException(EvalException ex) {
|
|
596 |
StackTraceElement[] raw = ex.getStackTrace();
|
|
597 |
int last = raw.length;
|
|
598 |
do {
|
|
599 |
if (last == 0) {
|
|
600 |
last = raw.length - 1;
|
|
601 |
break;
|
|
602 |
}
|
|
603 |
} while (!isWrap(raw[--last]));
|
|
604 |
StackTraceElement[] elems = new StackTraceElement[last + 1];
|
|
605 |
for (int i = 0; i <= last; ++i) {
|
|
606 |
StackTraceElement r = raw[i];
|
|
607 |
String rawKlass = r.getClassName();
|
|
608 |
Matcher matcher = prefixPattern.matcher(rawKlass);
|
|
609 |
String num;
|
|
610 |
if (matcher.find() && (num = matcher.group("num")) != null) {
|
|
611 |
int end = matcher.end();
|
|
612 |
if (rawKlass.charAt(end - 1) == '$') {
|
|
613 |
--end;
|
|
614 |
}
|
|
615 |
int id = Integer.parseInt(num);
|
|
616 |
Snippet si = state.maps.getSnippet(id);
|
|
617 |
String klass = expunge(rawKlass);
|
|
618 |
String method = r.getMethodName().equals(DOIT_METHOD_NAME) ? "" : r.getMethodName();
|
|
619 |
String file = "#" + id;
|
|
620 |
int line = si.outerWrap().wrapLineToSnippetLine(r.getLineNumber() - 1) + 1;
|
|
621 |
elems[i] = new StackTraceElement(klass, method, file, line);
|
|
622 |
} else if (r.getFileName().equals("<none>")) {
|
|
623 |
elems[i] = new StackTraceElement(r.getClassName(), r.getMethodName(), null, r.getLineNumber());
|
|
624 |
} else {
|
|
625 |
elems[i] = r;
|
|
626 |
}
|
|
627 |
}
|
|
628 |
String msg = ex.getMessage();
|
|
629 |
if (msg.equals("<none>")) {
|
|
630 |
msg = null;
|
|
631 |
}
|
|
632 |
return new EvalException(msg, ex.getExceptionClassName(), elems);
|
|
633 |
}
|
|
634 |
|
|
635 |
private boolean isWrap(StackTraceElement ste) {
|
|
636 |
return prefixPattern.matcher(ste.getClassName()).find();
|
|
637 |
}
|
|
638 |
|
|
639 |
private DiagList modifierDiagnostics(ModifiersTree modtree,
|
|
640 |
final TreeDissector dis, boolean isAbstractProhibited) {
|
|
641 |
|
|
642 |
class ModifierDiagnostic extends Diag {
|
|
643 |
|
|
644 |
final boolean fatal;
|
|
645 |
final String message;
|
|
646 |
|
|
647 |
ModifierDiagnostic(List<Modifier> list, boolean fatal) {
|
|
648 |
this.fatal = fatal;
|
|
649 |
StringBuilder sb = new StringBuilder();
|
|
650 |
sb.append((list.size() > 1) ? "Modifiers " : "Modifier ");
|
|
651 |
for (Modifier mod : list) {
|
|
652 |
sb.append("'");
|
|
653 |
sb.append(mod.toString());
|
|
654 |
sb.append("' ");
|
|
655 |
}
|
|
656 |
sb.append("not permitted in top-level declarations");
|
|
657 |
if (!fatal) {
|
|
658 |
sb.append(", ignored");
|
|
659 |
}
|
|
660 |
this.message = sb.toString();
|
|
661 |
}
|
|
662 |
|
|
663 |
@Override
|
|
664 |
public boolean isError() {
|
|
665 |
return fatal;
|
|
666 |
}
|
|
667 |
|
|
668 |
@Override
|
|
669 |
public long getPosition() {
|
|
670 |
return dis.getStartPosition(modtree);
|
|
671 |
}
|
|
672 |
|
|
673 |
@Override
|
|
674 |
public long getStartPosition() {
|
|
675 |
return dis.getStartPosition(modtree);
|
|
676 |
}
|
|
677 |
|
|
678 |
@Override
|
|
679 |
public long getEndPosition() {
|
|
680 |
return dis.getEndPosition(modtree);
|
|
681 |
}
|
|
682 |
|
|
683 |
@Override
|
|
684 |
public String getCode() {
|
|
685 |
return fatal
|
|
686 |
? "jdk.eval.error.illegal.modifiers"
|
|
687 |
: "jdk.eval.warn.illegal.modifiers";
|
|
688 |
}
|
|
689 |
|
|
690 |
@Override
|
|
691 |
public String getMessage(Locale locale) {
|
|
692 |
return message;
|
|
693 |
}
|
|
694 |
|
|
695 |
@Override
|
|
696 |
Unit unitOrNull() {
|
|
697 |
return null;
|
|
698 |
}
|
|
699 |
}
|
|
700 |
|
|
701 |
List<Modifier> list = new ArrayList<>();
|
|
702 |
boolean fatal = false;
|
|
703 |
for (Modifier mod : modtree.getFlags()) {
|
|
704 |
switch (mod) {
|
|
705 |
case SYNCHRONIZED:
|
|
706 |
case NATIVE:
|
|
707 |
list.add(mod);
|
|
708 |
fatal = true;
|
|
709 |
break;
|
|
710 |
case ABSTRACT:
|
|
711 |
if (isAbstractProhibited) {
|
|
712 |
list.add(mod);
|
|
713 |
fatal = true;
|
|
714 |
}
|
|
715 |
break;
|
|
716 |
case PUBLIC:
|
|
717 |
case PROTECTED:
|
|
718 |
case PRIVATE:
|
|
719 |
case STATIC:
|
|
720 |
case FINAL:
|
|
721 |
list.add(mod);
|
|
722 |
break;
|
|
723 |
}
|
|
724 |
}
|
|
725 |
return list.isEmpty()
|
|
726 |
? new DiagList()
|
|
727 |
: new DiagList(new ModifierDiagnostic(list, fatal));
|
|
728 |
}
|
|
729 |
|
|
730 |
}
|