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/*
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* Copyright 1999-2006 Sun Microsystems, Inc. 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. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package com.sun.tools.javac.tree;
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import com.sun.tools.javac.code.*;
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import com.sun.tools.javac.code.Symbol.*;
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import com.sun.tools.javac.code.Type.*;
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import com.sun.tools.javac.util.*;
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import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition;
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import com.sun.tools.javac.tree.JCTree.*;
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import static com.sun.tools.javac.code.Flags.*;
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import static com.sun.tools.javac.code.Kinds.*;
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import static com.sun.tools.javac.code.TypeTags.*;
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/** Factory class for trees.
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*
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* <p><b>This is NOT part of any API supported by Sun Microsystems. If
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* 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 TreeMaker implements JCTree.Factory {
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/** The context key for the tree factory. */
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protected static final Context.Key<TreeMaker> treeMakerKey =
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new Context.Key<TreeMaker>();
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/** Get the TreeMaker instance. */
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public static TreeMaker instance(Context context) {
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TreeMaker instance = context.get(treeMakerKey);
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if (instance == null)
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instance = new TreeMaker(context);
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return instance;
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}
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/** The position at which subsequent trees will be created.
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*/
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public int pos = Position.NOPOS;
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/** The toplevel tree to which created trees belong.
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*/
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public JCCompilationUnit toplevel;
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/** The current name table. */
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Name.Table names;
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Types types;
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/** The current symbol table. */
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Symtab syms;
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/** Create a tree maker with null toplevel and NOPOS as initial position.
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*/
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protected TreeMaker(Context context) {
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context.put(treeMakerKey, this);
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this.pos = Position.NOPOS;
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this.toplevel = null;
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this.names = Name.Table.instance(context);
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this.syms = Symtab.instance(context);
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this.types = Types.instance(context);
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}
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/** Create a tree maker with a given toplevel and FIRSTPOS as initial position.
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*/
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TreeMaker(JCCompilationUnit toplevel, Name.Table names, Types types, Symtab syms) {
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this.pos = Position.FIRSTPOS;
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this.toplevel = toplevel;
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this.names = names;
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this.types = types;
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this.syms = syms;
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}
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/** Create a new tree maker for a given toplevel.
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*/
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public TreeMaker forToplevel(JCCompilationUnit toplevel) {
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return new TreeMaker(toplevel, names, types, syms);
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}
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/** Reassign current position.
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*/
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public TreeMaker at(int pos) {
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this.pos = pos;
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return this;
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}
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/** Reassign current position.
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*/
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public TreeMaker at(DiagnosticPosition pos) {
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this.pos = (pos == null ? Position.NOPOS : pos.getStartPosition());
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return this;
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}
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/**
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* Create given tree node at current position.
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* @param defs a list of ClassDef, Import, and Skip
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*/
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public JCCompilationUnit TopLevel(List<JCAnnotation> packageAnnotations,
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JCExpression pid,
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List<JCTree> defs) {
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assert packageAnnotations != null;
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for (JCTree node : defs)
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assert node instanceof JCClassDecl
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|| node instanceof JCImport
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|| node instanceof JCSkip
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|| node instanceof JCErroneous
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|| (node instanceof JCExpressionStatement
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&& ((JCExpressionStatement)node).expr instanceof JCErroneous)
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: node.getClass().getSimpleName();
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JCCompilationUnit tree = new JCCompilationUnit(packageAnnotations, pid, defs,
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null, null, null, null);
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tree.pos = pos;
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return tree;
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}
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public JCImport Import(JCTree qualid, boolean importStatic) {
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JCImport tree = new JCImport(qualid, importStatic);
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tree.pos = pos;
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return tree;
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}
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public JCClassDecl ClassDef(JCModifiers mods,
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Name name,
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List<JCTypeParameter> typarams,
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JCTree extending,
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List<JCExpression> implementing,
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List<JCTree> defs)
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{
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JCClassDecl tree = new JCClassDecl(mods,
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name,
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typarams,
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extending,
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implementing,
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defs,
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null);
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tree.pos = pos;
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return tree;
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}
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public JCMethodDecl MethodDef(JCModifiers mods,
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Name name,
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JCExpression restype,
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List<JCTypeParameter> typarams,
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List<JCVariableDecl> params,
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List<JCExpression> thrown,
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JCBlock body,
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JCExpression defaultValue)
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{
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JCMethodDecl tree = new JCMethodDecl(mods,
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name,
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restype,
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typarams,
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params,
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thrown,
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body,
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defaultValue,
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null);
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tree.pos = pos;
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return tree;
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}
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public JCVariableDecl VarDef(JCModifiers mods, Name name, JCExpression vartype, JCExpression init) {
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JCVariableDecl tree = new JCVariableDecl(mods, name, vartype, init, null);
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tree.pos = pos;
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return tree;
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}
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public JCSkip Skip() {
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JCSkip tree = new JCSkip();
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tree.pos = pos;
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return tree;
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}
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public JCBlock Block(long flags, List<JCStatement> stats) {
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JCBlock tree = new JCBlock(flags, stats);
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tree.pos = pos;
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return tree;
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}
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public JCDoWhileLoop DoLoop(JCStatement body, JCExpression cond) {
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JCDoWhileLoop tree = new JCDoWhileLoop(body, cond);
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tree.pos = pos;
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return tree;
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}
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public JCWhileLoop WhileLoop(JCExpression cond, JCStatement body) {
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JCWhileLoop tree = new JCWhileLoop(cond, body);
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tree.pos = pos;
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return tree;
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}
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public JCForLoop ForLoop(List<JCStatement> init,
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JCExpression cond,
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List<JCExpressionStatement> step,
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JCStatement body)
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{
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JCForLoop tree = new JCForLoop(init, cond, step, body);
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tree.pos = pos;
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return tree;
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}
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public JCEnhancedForLoop ForeachLoop(JCVariableDecl var, JCExpression expr, JCStatement body) {
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JCEnhancedForLoop tree = new JCEnhancedForLoop(var, expr, body);
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tree.pos = pos;
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return tree;
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}
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public JCLabeledStatement Labelled(Name label, JCStatement body) {
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JCLabeledStatement tree = new JCLabeledStatement(label, body);
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tree.pos = pos;
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return tree;
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}
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public JCSwitch Switch(JCExpression selector, List<JCCase> cases) {
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JCSwitch tree = new JCSwitch(selector, cases);
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tree.pos = pos;
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return tree;
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}
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public JCCase Case(JCExpression pat, List<JCStatement> stats) {
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JCCase tree = new JCCase(pat, stats);
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tree.pos = pos;
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return tree;
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}
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public JCSynchronized Synchronized(JCExpression lock, JCBlock body) {
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JCSynchronized tree = new JCSynchronized(lock, body);
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tree.pos = pos;
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return tree;
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}
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public JCTry Try(JCBlock body, List<JCCatch> catchers, JCBlock finalizer) {
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JCTry tree = new JCTry(body, catchers, finalizer);
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tree.pos = pos;
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return tree;
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}
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public JCCatch Catch(JCVariableDecl param, JCBlock body) {
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JCCatch tree = new JCCatch(param, body);
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tree.pos = pos;
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return tree;
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}
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public JCConditional Conditional(JCExpression cond,
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JCExpression thenpart,
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JCExpression elsepart)
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{
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JCConditional tree = new JCConditional(cond, thenpart, elsepart);
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tree.pos = pos;
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return tree;
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}
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public JCIf If(JCExpression cond, JCStatement thenpart, JCStatement elsepart) {
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JCIf tree = new JCIf(cond, thenpart, elsepart);
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tree.pos = pos;
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return tree;
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}
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public JCExpressionStatement Exec(JCExpression expr) {
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JCExpressionStatement tree = new JCExpressionStatement(expr);
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tree.pos = pos;
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return tree;
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}
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public JCBreak Break(Name label) {
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JCBreak tree = new JCBreak(label, null);
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tree.pos = pos;
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return tree;
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}
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public JCContinue Continue(Name label) {
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JCContinue tree = new JCContinue(label, null);
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tree.pos = pos;
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return tree;
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}
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public JCReturn Return(JCExpression expr) {
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JCReturn tree = new JCReturn(expr);
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tree.pos = pos;
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return tree;
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}
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public JCThrow Throw(JCTree expr) {
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JCThrow tree = new JCThrow(expr);
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tree.pos = pos;
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return tree;
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}
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public JCAssert Assert(JCExpression cond, JCExpression detail) {
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JCAssert tree = new JCAssert(cond, detail);
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tree.pos = pos;
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return tree;
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}
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public JCMethodInvocation Apply(List<JCExpression> typeargs,
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JCExpression fn,
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List<JCExpression> args)
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{
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JCMethodInvocation tree = new JCMethodInvocation(typeargs, fn, args);
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tree.pos = pos;
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return tree;
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}
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public JCNewClass NewClass(JCExpression encl,
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List<JCExpression> typeargs,
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JCExpression clazz,
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List<JCExpression> args,
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JCClassDecl def)
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{
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JCNewClass tree = new JCNewClass(encl, typeargs, clazz, args, def);
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tree.pos = pos;
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return tree;
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}
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public JCNewArray NewArray(JCExpression elemtype,
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List<JCExpression> dims,
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List<JCExpression> elems)
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{
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JCNewArray tree = new JCNewArray(elemtype, dims, elems);
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tree.pos = pos;
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return tree;
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}
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public JCParens Parens(JCExpression expr) {
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JCParens tree = new JCParens(expr);
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tree.pos = pos;
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return tree;
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}
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public JCAssign Assign(JCExpression lhs, JCExpression rhs) {
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JCAssign tree = new JCAssign(lhs, rhs);
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tree.pos = pos;
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return tree;
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}
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public JCAssignOp Assignop(int opcode, JCTree lhs, JCTree rhs) {
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JCAssignOp tree = new JCAssignOp(opcode, lhs, rhs, null);
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tree.pos = pos;
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return tree;
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}
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public JCUnary Unary(int opcode, JCExpression arg) {
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JCUnary tree = new JCUnary(opcode, arg);
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tree.pos = pos;
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return tree;
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}
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public JCBinary Binary(int opcode, JCExpression lhs, JCExpression rhs) {
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JCBinary tree = new JCBinary(opcode, lhs, rhs, null);
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tree.pos = pos;
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return tree;
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}
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public JCTypeCast TypeCast(JCTree clazz, JCExpression expr) {
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JCTypeCast tree = new JCTypeCast(clazz, expr);
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tree.pos = pos;
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return tree;
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}
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public JCInstanceOf TypeTest(JCExpression expr, JCTree clazz) {
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JCInstanceOf tree = new JCInstanceOf(expr, clazz);
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tree.pos = pos;
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return tree;
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}
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public JCArrayAccess Indexed(JCExpression indexed, JCExpression index) {
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JCArrayAccess tree = new JCArrayAccess(indexed, index);
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tree.pos = pos;
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return tree;
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}
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public JCFieldAccess Select(JCExpression selected, Name selector) {
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JCFieldAccess tree = new JCFieldAccess(selected, selector, null);
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tree.pos = pos;
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return tree;
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}
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public JCIdent Ident(Name name) {
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JCIdent tree = new JCIdent(name, null);
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tree.pos = pos;
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return tree;
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}
|
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|
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public JCLiteral Literal(int tag, Object value) {
|
|
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JCLiteral tree = new JCLiteral(tag, value);
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tree.pos = pos;
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return tree;
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}
|
|
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|
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public JCPrimitiveTypeTree TypeIdent(int typetag) {
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|
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JCPrimitiveTypeTree tree = new JCPrimitiveTypeTree(typetag);
|
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tree.pos = pos;
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|
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return tree;
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}
|
|
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|
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public JCArrayTypeTree TypeArray(JCExpression elemtype) {
|
|
421 |
JCArrayTypeTree tree = new JCArrayTypeTree(elemtype);
|
|
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tree.pos = pos;
|
|
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return tree;
|
|
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}
|
|
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|
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public JCTypeApply TypeApply(JCExpression clazz, List<JCExpression> arguments) {
|
|
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JCTypeApply tree = new JCTypeApply(clazz, arguments);
|
|
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tree.pos = pos;
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return tree;
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}
|
|
431 |
|
|
432 |
public JCTypeParameter TypeParameter(Name name, List<JCExpression> bounds) {
|
|
433 |
JCTypeParameter tree = new JCTypeParameter(name, bounds);
|
|
434 |
tree.pos = pos;
|
|
435 |
return tree;
|
|
436 |
}
|
|
437 |
|
|
438 |
public JCWildcard Wildcard(TypeBoundKind kind, JCTree type) {
|
|
439 |
JCWildcard tree = new JCWildcard(kind, type);
|
|
440 |
tree.pos = pos;
|
|
441 |
return tree;
|
|
442 |
}
|
|
443 |
|
|
444 |
public TypeBoundKind TypeBoundKind(BoundKind kind) {
|
|
445 |
TypeBoundKind tree = new TypeBoundKind(kind);
|
|
446 |
tree.pos = pos;
|
|
447 |
return tree;
|
|
448 |
}
|
|
449 |
|
|
450 |
public JCAnnotation Annotation(JCTree annotationType, List<JCExpression> args) {
|
|
451 |
JCAnnotation tree = new JCAnnotation(annotationType, args);
|
|
452 |
tree.pos = pos;
|
|
453 |
return tree;
|
|
454 |
}
|
|
455 |
|
|
456 |
public JCModifiers Modifiers(long flags, List<JCAnnotation> annotations) {
|
|
457 |
JCModifiers tree = new JCModifiers(flags, annotations);
|
|
458 |
boolean noFlags = (flags & Flags.StandardFlags) == 0;
|
|
459 |
tree.pos = (noFlags && annotations.isEmpty()) ? Position.NOPOS : pos;
|
|
460 |
return tree;
|
|
461 |
}
|
|
462 |
|
|
463 |
public JCModifiers Modifiers(long flags) {
|
|
464 |
return Modifiers(flags, List.<JCAnnotation>nil());
|
|
465 |
}
|
|
466 |
|
|
467 |
public JCErroneous Erroneous() {
|
|
468 |
return Erroneous(List.<JCTree>nil());
|
|
469 |
}
|
|
470 |
|
|
471 |
public JCErroneous Erroneous(List<? extends JCTree> errs) {
|
|
472 |
JCErroneous tree = new JCErroneous(errs);
|
|
473 |
tree.pos = pos;
|
|
474 |
return tree;
|
|
475 |
}
|
|
476 |
|
|
477 |
public LetExpr LetExpr(List<JCVariableDecl> defs, JCTree expr) {
|
|
478 |
LetExpr tree = new LetExpr(defs, expr);
|
|
479 |
tree.pos = pos;
|
|
480 |
return tree;
|
|
481 |
}
|
|
482 |
|
|
483 |
/* ***************************************************************************
|
|
484 |
* Derived building blocks.
|
|
485 |
****************************************************************************/
|
|
486 |
|
|
487 |
public JCClassDecl AnonymousClassDef(JCModifiers mods,
|
|
488 |
List<JCTree> defs)
|
|
489 |
{
|
|
490 |
return ClassDef(mods,
|
|
491 |
names.empty,
|
|
492 |
List.<JCTypeParameter>nil(),
|
|
493 |
null,
|
|
494 |
List.<JCExpression>nil(),
|
|
495 |
defs);
|
|
496 |
}
|
|
497 |
|
|
498 |
public LetExpr LetExpr(JCVariableDecl def, JCTree expr) {
|
|
499 |
LetExpr tree = new LetExpr(List.of(def), expr);
|
|
500 |
tree.pos = pos;
|
|
501 |
return tree;
|
|
502 |
}
|
|
503 |
|
|
504 |
/** Create an identifier from a symbol.
|
|
505 |
*/
|
|
506 |
public JCIdent Ident(Symbol sym) {
|
|
507 |
return (JCIdent)new JCIdent((sym.name != names.empty)
|
|
508 |
? sym.name
|
|
509 |
: sym.flatName(), sym)
|
|
510 |
.setPos(pos)
|
|
511 |
.setType(sym.type);
|
|
512 |
}
|
|
513 |
|
|
514 |
/** Create a selection node from a qualifier tree and a symbol.
|
|
515 |
* @param base The qualifier tree.
|
|
516 |
*/
|
|
517 |
public JCExpression Select(JCExpression base, Symbol sym) {
|
|
518 |
return new JCFieldAccess(base, sym.name, sym).setPos(pos).setType(sym.type);
|
|
519 |
}
|
|
520 |
|
|
521 |
/** Create a qualified identifier from a symbol, adding enough qualifications
|
|
522 |
* to make the reference unique.
|
|
523 |
*/
|
|
524 |
public JCExpression QualIdent(Symbol sym) {
|
|
525 |
return isUnqualifiable(sym)
|
|
526 |
? Ident(sym)
|
|
527 |
: Select(QualIdent(sym.owner), sym);
|
|
528 |
}
|
|
529 |
|
|
530 |
/** Create an identifier that refers to the variable declared in given variable
|
|
531 |
* declaration.
|
|
532 |
*/
|
|
533 |
public JCExpression Ident(JCVariableDecl param) {
|
|
534 |
return Ident(param.sym);
|
|
535 |
}
|
|
536 |
|
|
537 |
/** Create a list of identifiers referring to the variables declared
|
|
538 |
* in given list of variable declarations.
|
|
539 |
*/
|
|
540 |
public List<JCExpression> Idents(List<JCVariableDecl> params) {
|
|
541 |
ListBuffer<JCExpression> ids = new ListBuffer<JCExpression>();
|
|
542 |
for (List<JCVariableDecl> l = params; l.nonEmpty(); l = l.tail)
|
|
543 |
ids.append(Ident(l.head));
|
|
544 |
return ids.toList();
|
|
545 |
}
|
|
546 |
|
|
547 |
/** Create a tree representing `this', given its type.
|
|
548 |
*/
|
|
549 |
public JCExpression This(Type t) {
|
|
550 |
return Ident(new VarSymbol(FINAL, names._this, t, t.tsym));
|
|
551 |
}
|
|
552 |
|
|
553 |
/** Create a tree representing a class literal.
|
|
554 |
*/
|
|
555 |
public JCExpression ClassLiteral(ClassSymbol clazz) {
|
|
556 |
return ClassLiteral(clazz.type);
|
|
557 |
}
|
|
558 |
|
|
559 |
/** Create a tree representing a class literal.
|
|
560 |
*/
|
|
561 |
public JCExpression ClassLiteral(Type t) {
|
|
562 |
VarSymbol lit = new VarSymbol(STATIC | PUBLIC | FINAL,
|
|
563 |
names._class,
|
|
564 |
t,
|
|
565 |
t.tsym);
|
|
566 |
return Select(Type(t), lit);
|
|
567 |
}
|
|
568 |
|
|
569 |
/** Create a tree representing `super', given its type and owner.
|
|
570 |
*/
|
|
571 |
public JCIdent Super(Type t, TypeSymbol owner) {
|
|
572 |
return Ident(new VarSymbol(FINAL, names._super, t, owner));
|
|
573 |
}
|
|
574 |
|
|
575 |
/**
|
|
576 |
* Create a method invocation from a method tree and a list of
|
|
577 |
* argument trees.
|
|
578 |
*/
|
|
579 |
public JCMethodInvocation App(JCExpression meth, List<JCExpression> args) {
|
|
580 |
return Apply(null, meth, args).setType(meth.type.getReturnType());
|
|
581 |
}
|
|
582 |
|
|
583 |
/**
|
|
584 |
* Create a no-arg method invocation from a method tree
|
|
585 |
*/
|
|
586 |
public JCMethodInvocation App(JCExpression meth) {
|
|
587 |
return Apply(null, meth, List.<JCExpression>nil()).setType(meth.type.getReturnType());
|
|
588 |
}
|
|
589 |
|
|
590 |
/** Create a method invocation from a method tree and a list of argument trees.
|
|
591 |
*/
|
|
592 |
public JCExpression Create(Symbol ctor, List<JCExpression> args) {
|
|
593 |
Type t = ctor.owner.erasure(types);
|
|
594 |
JCNewClass newclass = NewClass(null, null, Type(t), args, null);
|
|
595 |
newclass.constructor = ctor;
|
|
596 |
newclass.setType(t);
|
|
597 |
return newclass;
|
|
598 |
}
|
|
599 |
|
|
600 |
/** Create a tree representing given type.
|
|
601 |
*/
|
|
602 |
public JCExpression Type(Type t) {
|
|
603 |
if (t == null) return null;
|
|
604 |
JCExpression tp;
|
|
605 |
switch (t.tag) {
|
|
606 |
case BYTE: case CHAR: case SHORT: case INT: case LONG: case FLOAT:
|
|
607 |
case DOUBLE: case BOOLEAN: case VOID:
|
|
608 |
tp = TypeIdent(t.tag);
|
|
609 |
break;
|
|
610 |
case TYPEVAR:
|
|
611 |
tp = Ident(t.tsym);
|
|
612 |
break;
|
|
613 |
case WILDCARD: {
|
|
614 |
WildcardType a = ((WildcardType) t);
|
|
615 |
tp = Wildcard(TypeBoundKind(a.kind), Type(a.type));
|
|
616 |
break;
|
|
617 |
}
|
|
618 |
case CLASS:
|
|
619 |
Type outer = t.getEnclosingType();
|
|
620 |
JCExpression clazz = outer.tag == CLASS && t.tsym.owner.kind == TYP
|
|
621 |
? Select(Type(outer), t.tsym)
|
|
622 |
: QualIdent(t.tsym);
|
|
623 |
tp = t.getTypeArguments().isEmpty()
|
|
624 |
? clazz
|
|
625 |
: TypeApply(clazz, Types(t.getTypeArguments()));
|
|
626 |
break;
|
|
627 |
case ARRAY:
|
|
628 |
tp = TypeArray(Type(types.elemtype(t)));
|
|
629 |
break;
|
|
630 |
case ERROR:
|
|
631 |
tp = TypeIdent(ERROR);
|
|
632 |
break;
|
|
633 |
default:
|
|
634 |
throw new AssertionError("unexpected type: " + t);
|
|
635 |
}
|
|
636 |
return tp.setType(t);
|
|
637 |
}
|
|
638 |
//where
|
|
639 |
private JCExpression Selectors(JCExpression base, Symbol sym, Symbol limit) {
|
|
640 |
if (sym == limit) return base;
|
|
641 |
else return Select(Selectors(base, sym.owner, limit), sym);
|
|
642 |
}
|
|
643 |
|
|
644 |
/** Create a list of trees representing given list of types.
|
|
645 |
*/
|
|
646 |
public List<JCExpression> Types(List<Type> ts) {
|
|
647 |
ListBuffer<JCExpression> types = new ListBuffer<JCExpression>();
|
|
648 |
for (List<Type> l = ts; l.nonEmpty(); l = l.tail)
|
|
649 |
types.append(Type(l.head));
|
|
650 |
return types.toList();
|
|
651 |
}
|
|
652 |
|
|
653 |
/** Create a variable definition from a variable symbol and an initializer
|
|
654 |
* expression.
|
|
655 |
*/
|
|
656 |
public JCVariableDecl VarDef(VarSymbol v, JCExpression init) {
|
|
657 |
return (JCVariableDecl)
|
|
658 |
new JCVariableDecl(
|
|
659 |
Modifiers(v.flags(), Annotations(v.getAnnotationMirrors())),
|
|
660 |
v.name,
|
|
661 |
Type(v.type),
|
|
662 |
init,
|
|
663 |
v).setPos(pos).setType(v.type);
|
|
664 |
}
|
|
665 |
|
|
666 |
/** Create annotation trees from annotations.
|
|
667 |
*/
|
|
668 |
public List<JCAnnotation> Annotations(List<Attribute.Compound> attributes) {
|
|
669 |
if (attributes == null) return List.nil();
|
|
670 |
ListBuffer<JCAnnotation> result = new ListBuffer<JCAnnotation>();
|
|
671 |
for (List<Attribute.Compound> i = attributes; i.nonEmpty(); i=i.tail) {
|
|
672 |
Attribute a = i.head;
|
|
673 |
result.append(Annotation(a));
|
|
674 |
}
|
|
675 |
return result.toList();
|
|
676 |
}
|
|
677 |
|
|
678 |
public JCLiteral Literal(Object value) {
|
|
679 |
JCLiteral result = null;
|
|
680 |
if (value instanceof String) {
|
|
681 |
result = Literal(CLASS, value).
|
|
682 |
setType(syms.stringType.constType(value));
|
|
683 |
} else if (value instanceof Integer) {
|
|
684 |
result = Literal(INT, value).
|
|
685 |
setType(syms.intType.constType(value));
|
|
686 |
} else if (value instanceof Long) {
|
|
687 |
result = Literal(LONG, value).
|
|
688 |
setType(syms.longType.constType(value));
|
|
689 |
} else if (value instanceof Byte) {
|
|
690 |
result = Literal(BYTE, value).
|
|
691 |
setType(syms.byteType.constType(value));
|
|
692 |
} else if (value instanceof Character) {
|
|
693 |
result = Literal(CHAR, value).
|
|
694 |
setType(syms.charType.constType(value));
|
|
695 |
} else if (value instanceof Double) {
|
|
696 |
result = Literal(DOUBLE, value).
|
|
697 |
setType(syms.doubleType.constType(value));
|
|
698 |
} else if (value instanceof Float) {
|
|
699 |
result = Literal(FLOAT, value).
|
|
700 |
setType(syms.floatType.constType(value));
|
|
701 |
} else if (value instanceof Short) {
|
|
702 |
result = Literal(SHORT, value).
|
|
703 |
setType(syms.shortType.constType(value));
|
|
704 |
} else {
|
|
705 |
throw new AssertionError(value);
|
|
706 |
}
|
|
707 |
return result;
|
|
708 |
}
|
|
709 |
|
|
710 |
class AnnotationBuilder implements Attribute.Visitor {
|
|
711 |
JCExpression result = null;
|
|
712 |
public void visitConstant(Attribute.Constant v) {
|
|
713 |
result = Literal(v.value);
|
|
714 |
}
|
|
715 |
public void visitClass(Attribute.Class clazz) {
|
|
716 |
result = ClassLiteral(clazz.type).setType(syms.classType);
|
|
717 |
}
|
|
718 |
public void visitEnum(Attribute.Enum e) {
|
|
719 |
result = QualIdent(e.value);
|
|
720 |
}
|
|
721 |
public void visitError(Attribute.Error e) {
|
|
722 |
result = Erroneous();
|
|
723 |
}
|
|
724 |
public void visitCompound(Attribute.Compound compound) {
|
|
725 |
result = visitCompoundInternal(compound);
|
|
726 |
}
|
|
727 |
public JCAnnotation visitCompoundInternal(Attribute.Compound compound) {
|
|
728 |
ListBuffer<JCExpression> args = new ListBuffer<JCExpression>();
|
|
729 |
for (List<Pair<Symbol.MethodSymbol,Attribute>> values = compound.values; values.nonEmpty(); values=values.tail) {
|
|
730 |
Pair<MethodSymbol,Attribute> pair = values.head;
|
|
731 |
JCExpression valueTree = translate(pair.snd);
|
|
732 |
args.append(Assign(Ident(pair.fst), valueTree).setType(valueTree.type));
|
|
733 |
}
|
|
734 |
return Annotation(Type(compound.type), args.toList());
|
|
735 |
}
|
|
736 |
public void visitArray(Attribute.Array array) {
|
|
737 |
ListBuffer<JCExpression> elems = new ListBuffer<JCExpression>();
|
|
738 |
for (int i = 0; i < array.values.length; i++)
|
|
739 |
elems.append(translate(array.values[i]));
|
|
740 |
result = NewArray(null, List.<JCExpression>nil(), elems.toList()).setType(array.type);
|
|
741 |
}
|
|
742 |
JCExpression translate(Attribute a) {
|
|
743 |
a.accept(this);
|
|
744 |
return result;
|
|
745 |
}
|
|
746 |
JCAnnotation translate(Attribute.Compound a) {
|
|
747 |
return visitCompoundInternal(a);
|
|
748 |
}
|
|
749 |
}
|
|
750 |
AnnotationBuilder annotationBuilder = new AnnotationBuilder();
|
|
751 |
|
|
752 |
/** Create an annotation tree from an attribute.
|
|
753 |
*/
|
|
754 |
public JCAnnotation Annotation(Attribute a) {
|
|
755 |
return annotationBuilder.translate((Attribute.Compound)a);
|
|
756 |
}
|
|
757 |
|
|
758 |
/** Create a method definition from a method symbol and a method body.
|
|
759 |
*/
|
|
760 |
public JCMethodDecl MethodDef(MethodSymbol m, JCBlock body) {
|
|
761 |
return MethodDef(m, m.type, body);
|
|
762 |
}
|
|
763 |
|
|
764 |
/** Create a method definition from a method symbol, method type
|
|
765 |
* and a method body.
|
|
766 |
*/
|
|
767 |
public JCMethodDecl MethodDef(MethodSymbol m, Type mtype, JCBlock body) {
|
|
768 |
return (JCMethodDecl)
|
|
769 |
new JCMethodDecl(
|
|
770 |
Modifiers(m.flags(), Annotations(m.getAnnotationMirrors())),
|
|
771 |
m.name,
|
|
772 |
Type(mtype.getReturnType()),
|
|
773 |
TypeParams(mtype.getTypeArguments()),
|
|
774 |
Params(mtype.getParameterTypes(), m),
|
|
775 |
Types(mtype.getThrownTypes()),
|
|
776 |
body,
|
|
777 |
null,
|
|
778 |
m).setPos(pos).setType(mtype);
|
|
779 |
}
|
|
780 |
|
|
781 |
/** Create a type parameter tree from its name and type.
|
|
782 |
*/
|
|
783 |
public JCTypeParameter TypeParam(Name name, TypeVar tvar) {
|
|
784 |
return (JCTypeParameter)
|
|
785 |
TypeParameter(name, Types(types.getBounds(tvar))).setPos(pos).setType(tvar);
|
|
786 |
}
|
|
787 |
|
|
788 |
/** Create a list of type parameter trees from a list of type variables.
|
|
789 |
*/
|
|
790 |
public List<JCTypeParameter> TypeParams(List<Type> typarams) {
|
|
791 |
ListBuffer<JCTypeParameter> tparams = new ListBuffer<JCTypeParameter>();
|
|
792 |
int i = 0;
|
|
793 |
for (List<Type> l = typarams; l.nonEmpty(); l = l.tail)
|
|
794 |
tparams.append(TypeParam(l.head.tsym.name, (TypeVar)l.head));
|
|
795 |
return tparams.toList();
|
|
796 |
}
|
|
797 |
|
|
798 |
/** Create a value parameter tree from its name, type, and owner.
|
|
799 |
*/
|
|
800 |
public JCVariableDecl Param(Name name, Type argtype, Symbol owner) {
|
|
801 |
return VarDef(new VarSymbol(0, name, argtype, owner), null);
|
|
802 |
}
|
|
803 |
|
|
804 |
/** Create a a list of value parameter trees x0, ..., xn from a list of
|
|
805 |
* their types and an their owner.
|
|
806 |
*/
|
|
807 |
public List<JCVariableDecl> Params(List<Type> argtypes, Symbol owner) {
|
|
808 |
ListBuffer<JCVariableDecl> params = new ListBuffer<JCVariableDecl>();
|
|
809 |
MethodSymbol mth = (owner.kind == MTH) ? ((MethodSymbol)owner) : null;
|
|
810 |
if (mth != null && mth.params != null && argtypes.length() == mth.params.length()) {
|
|
811 |
for (VarSymbol param : ((MethodSymbol)owner).params)
|
|
812 |
params.append(VarDef(param, null));
|
|
813 |
} else {
|
|
814 |
int i = 0;
|
|
815 |
for (List<Type> l = argtypes; l.nonEmpty(); l = l.tail)
|
|
816 |
params.append(Param(paramName(i++), l.head, owner));
|
|
817 |
}
|
|
818 |
return params.toList();
|
|
819 |
}
|
|
820 |
|
|
821 |
/** Wrap a method invocation in an expression statement or return statement,
|
|
822 |
* depending on whether the method invocation expression's type is void.
|
|
823 |
*/
|
|
824 |
public JCStatement Call(JCExpression apply) {
|
|
825 |
return apply.type.tag == VOID ? Exec(apply) : Return(apply);
|
|
826 |
}
|
|
827 |
|
|
828 |
/** Construct an assignment from a variable symbol and a right hand side.
|
|
829 |
*/
|
|
830 |
public JCStatement Assignment(Symbol v, JCExpression rhs) {
|
|
831 |
return Exec(Assign(Ident(v), rhs).setType(v.type));
|
|
832 |
}
|
|
833 |
|
|
834 |
/** Construct an index expression from a variable and an expression.
|
|
835 |
*/
|
|
836 |
public JCArrayAccess Indexed(Symbol v, JCExpression index) {
|
|
837 |
JCArrayAccess tree = new JCArrayAccess(QualIdent(v), index);
|
|
838 |
tree.type = ((ArrayType)v.type).elemtype;
|
|
839 |
return tree;
|
|
840 |
}
|
|
841 |
|
|
842 |
/** Make an attributed type cast expression.
|
|
843 |
*/
|
|
844 |
public JCTypeCast TypeCast(Type type, JCExpression expr) {
|
|
845 |
return (JCTypeCast)TypeCast(Type(type), expr).setType(type);
|
|
846 |
}
|
|
847 |
|
|
848 |
/* ***************************************************************************
|
|
849 |
* Helper methods.
|
|
850 |
****************************************************************************/
|
|
851 |
|
|
852 |
/** Can given symbol be referred to in unqualified form?
|
|
853 |
*/
|
|
854 |
boolean isUnqualifiable(Symbol sym) {
|
|
855 |
if (sym.name == names.empty ||
|
|
856 |
sym.owner == null ||
|
|
857 |
sym.owner.kind == MTH || sym.owner.kind == VAR) {
|
|
858 |
return true;
|
|
859 |
} else if (sym.kind == TYP && toplevel != null) {
|
|
860 |
Scope.Entry e;
|
|
861 |
e = toplevel.namedImportScope.lookup(sym.name);
|
|
862 |
if (e.scope != null) {
|
|
863 |
return
|
|
864 |
e.sym == sym &&
|
|
865 |
e.next().scope == null;
|
|
866 |
}
|
|
867 |
e = toplevel.packge.members().lookup(sym.name);
|
|
868 |
if (e.scope != null) {
|
|
869 |
return
|
|
870 |
e.sym == sym &&
|
|
871 |
e.next().scope == null;
|
|
872 |
}
|
|
873 |
e = toplevel.starImportScope.lookup(sym.name);
|
|
874 |
if (e.scope != null) {
|
|
875 |
return
|
|
876 |
e.sym == sym &&
|
|
877 |
e.next().scope == null;
|
|
878 |
}
|
|
879 |
}
|
|
880 |
return false;
|
|
881 |
}
|
|
882 |
|
|
883 |
/** The name of synthetic parameter number `i'.
|
|
884 |
*/
|
|
885 |
public Name paramName(int i) { return names.fromString("x" + i); }
|
|
886 |
|
|
887 |
/** The name of synthetic type parameter number `i'.
|
|
888 |
*/
|
|
889 |
public Name typaramName(int i) { return names.fromString("A" + i); }
|
|
890 |
}
|