• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/classes/com/sun/tools/javac/tree/TreeTranslator.java@959103a6100f (annotated)

src/share/classes/com/sun/tools/javac/tree/TreeTranslator.java

Wed, 27 Apr 2016 01:34:52 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:34:52 +0800

changeset 0

959103a6100f

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.tools.javac.tree;
aoqi@0	27
aoqi@0	28	import com.sun.tools.javac.util.*;
aoqi@0	29	import com.sun.tools.javac.tree.JCTree.*;
aoqi@0	30
aoqi@0	31	/** A subclass of Tree.Visitor, this class defines
aoqi@0	32	* a general tree translator pattern. Translation proceeds recursively in
aoqi@0	33	* left-to-right order down a tree, constructing translated nodes by
aoqi@0	34	* overwriting existing ones. There is one visitor method in this class
aoqi@0	35	* for every possible kind of tree node. To obtain a specific
aoqi@0	36	* translator, it suffices to override those visitor methods which
aoqi@0	37	* do some interesting work. The translator class itself takes care of all
aoqi@0	38	* navigational aspects.
aoqi@0	39	*
aoqi@0	40	* <p><b>This is NOT part of any supported API.
aoqi@0	41	* If you write code that depends on this, you do so at your own risk.
aoqi@0	42	* This code and its internal interfaces are subject to change or
aoqi@0	43	* deletion without notice.</b>
aoqi@0	44	*/
aoqi@0	45	public class TreeTranslator extends JCTree.Visitor {
aoqi@0	46
aoqi@0	47	/** Visitor result field: a tree
aoqi@0	48	*/
aoqi@0	49	protected JCTree result;
aoqi@0	50
aoqi@0	51	/** Visitor method: Translate a single node.
aoqi@0	52	*/
aoqi@0	53	@SuppressWarnings("unchecked")
aoqi@0	54	public <T extends JCTree> T translate(T tree) {
aoqi@0	55	if (tree == null) {
aoqi@0	56	return null;
aoqi@0	57	} else {
aoqi@0	58	tree.accept(this);
aoqi@0	59	JCTree tmpResult = this.result;
aoqi@0	60	this.result = null;
aoqi@0	61	return (T)tmpResult; // XXX cast
aoqi@0	62	}
aoqi@0	63	}
aoqi@0	64
aoqi@0	65	/** Visitor method: translate a list of nodes.
aoqi@0	66	*/
aoqi@0	67	public <T extends JCTree> List<T> translate(List<T> trees) {
aoqi@0	68	if (trees == null) return null;
aoqi@0	69	for (List<T> l = trees; l.nonEmpty(); l = l.tail)
aoqi@0	70	l.head = translate(l.head);
aoqi@0	71	return trees;
aoqi@0	72	}
aoqi@0	73
aoqi@0	74	/** Visitor method: translate a list of variable definitions.
aoqi@0	75	*/
aoqi@0	76	public List<JCVariableDecl> translateVarDefs(List<JCVariableDecl> trees) {
aoqi@0	77	for (List<JCVariableDecl> l = trees; l.nonEmpty(); l = l.tail)
aoqi@0	78	l.head = translate(l.head);
aoqi@0	79	return trees;
aoqi@0	80	}
aoqi@0	81
aoqi@0	82	/** Visitor method: translate a list of type parameters.
aoqi@0	83	*/
aoqi@0	84	public List<JCTypeParameter> translateTypeParams(List<JCTypeParameter> trees) {
aoqi@0	85	for (List<JCTypeParameter> l = trees; l.nonEmpty(); l = l.tail)
aoqi@0	86	l.head = translate(l.head);
aoqi@0	87	return trees;
aoqi@0	88	}
aoqi@0	89
aoqi@0	90	/** Visitor method: translate a list of case parts of switch statements.
aoqi@0	91	*/
aoqi@0	92	public List<JCCase> translateCases(List<JCCase> trees) {
aoqi@0	93	for (List<JCCase> l = trees; l.nonEmpty(); l = l.tail)
aoqi@0	94	l.head = translate(l.head);
aoqi@0	95	return trees;
aoqi@0	96	}
aoqi@0	97
aoqi@0	98	/** Visitor method: translate a list of catch clauses in try statements.
aoqi@0	99	*/
aoqi@0	100	public List<JCCatch> translateCatchers(List<JCCatch> trees) {
aoqi@0	101	for (List<JCCatch> l = trees; l.nonEmpty(); l = l.tail)
aoqi@0	102	l.head = translate(l.head);
aoqi@0	103	return trees;
aoqi@0	104	}
aoqi@0	105
aoqi@0	106	/** Visitor method: translate a list of catch clauses in try statements.
aoqi@0	107	*/
aoqi@0	108	public List<JCAnnotation> translateAnnotations(List<JCAnnotation> trees) {
aoqi@0	109	for (List<JCAnnotation> l = trees; l.nonEmpty(); l = l.tail)
aoqi@0	110	l.head = translate(l.head);
aoqi@0	111	return trees;
aoqi@0	112	}
aoqi@0	113
aoqi@0	114	/* ***************************************************************************
aoqi@0	115	* Visitor methods
aoqi@0	116	****************************************************************************/
aoqi@0	117
aoqi@0	118	public void visitTopLevel(JCCompilationUnit tree) {
aoqi@0	119	tree.pid = translate(tree.pid);
aoqi@0	120	tree.defs = translate(tree.defs);
aoqi@0	121	result = tree;
aoqi@0	122	}
aoqi@0	123
aoqi@0	124	public void visitImport(JCImport tree) {
aoqi@0	125	tree.qualid = translate(tree.qualid);
aoqi@0	126	result = tree;
aoqi@0	127	}
aoqi@0	128
aoqi@0	129	public void visitClassDef(JCClassDecl tree) {
aoqi@0	130	tree.mods = translate(tree.mods);
aoqi@0	131	tree.typarams = translateTypeParams(tree.typarams);
aoqi@0	132	tree.extending = translate(tree.extending);
aoqi@0	133	tree.implementing = translate(tree.implementing);
aoqi@0	134	tree.defs = translate(tree.defs);
aoqi@0	135	result = tree;
aoqi@0	136	}
aoqi@0	137
aoqi@0	138	public void visitMethodDef(JCMethodDecl tree) {
aoqi@0	139	tree.mods = translate(tree.mods);
aoqi@0	140	tree.restype = translate(tree.restype);
aoqi@0	141	tree.typarams = translateTypeParams(tree.typarams);
aoqi@0	142	tree.recvparam = translate(tree.recvparam);
aoqi@0	143	tree.params = translateVarDefs(tree.params);
aoqi@0	144	tree.thrown = translate(tree.thrown);
aoqi@0	145	tree.body = translate(tree.body);
aoqi@0	146	result = tree;
aoqi@0	147	}
aoqi@0	148
aoqi@0	149	public void visitVarDef(JCVariableDecl tree) {
aoqi@0	150	tree.mods = translate(tree.mods);
aoqi@0	151	tree.nameexpr = translate(tree.nameexpr);
aoqi@0	152	tree.vartype = translate(tree.vartype);
aoqi@0	153	tree.init = translate(tree.init);
aoqi@0	154	result = tree;
aoqi@0	155	}
aoqi@0	156
aoqi@0	157	public void visitSkip(JCSkip tree) {
aoqi@0	158	result = tree;
aoqi@0	159	}
aoqi@0	160
aoqi@0	161	public void visitBlock(JCBlock tree) {
aoqi@0	162	tree.stats = translate(tree.stats);
aoqi@0	163	result = tree;
aoqi@0	164	}
aoqi@0	165
aoqi@0	166	public void visitDoLoop(JCDoWhileLoop tree) {
aoqi@0	167	tree.body = translate(tree.body);
aoqi@0	168	tree.cond = translate(tree.cond);
aoqi@0	169	result = tree;
aoqi@0	170	}
aoqi@0	171
aoqi@0	172	public void visitWhileLoop(JCWhileLoop tree) {
aoqi@0	173	tree.cond = translate(tree.cond);
aoqi@0	174	tree.body = translate(tree.body);
aoqi@0	175	result = tree;
aoqi@0	176	}
aoqi@0	177
aoqi@0	178	public void visitForLoop(JCForLoop tree) {
aoqi@0	179	tree.init = translate(tree.init);
aoqi@0	180	tree.cond = translate(tree.cond);
aoqi@0	181	tree.step = translate(tree.step);
aoqi@0	182	tree.body = translate(tree.body);
aoqi@0	183	result = tree;
aoqi@0	184	}
aoqi@0	185
aoqi@0	186	public void visitForeachLoop(JCEnhancedForLoop tree) {
aoqi@0	187	tree.var = translate(tree.var);
aoqi@0	188	tree.expr = translate(tree.expr);
aoqi@0	189	tree.body = translate(tree.body);
aoqi@0	190	result = tree;
aoqi@0	191	}
aoqi@0	192
aoqi@0	193	public void visitLabelled(JCLabeledStatement tree) {
aoqi@0	194	tree.body = translate(tree.body);
aoqi@0	195	result = tree;
aoqi@0	196	}
aoqi@0	197
aoqi@0	198	public void visitSwitch(JCSwitch tree) {
aoqi@0	199	tree.selector = translate(tree.selector);
aoqi@0	200	tree.cases = translateCases(tree.cases);
aoqi@0	201	result = tree;
aoqi@0	202	}
aoqi@0	203
aoqi@0	204	public void visitCase(JCCase tree) {
aoqi@0	205	tree.pat = translate(tree.pat);
aoqi@0	206	tree.stats = translate(tree.stats);
aoqi@0	207	result = tree;
aoqi@0	208	}
aoqi@0	209
aoqi@0	210	public void visitSynchronized(JCSynchronized tree) {
aoqi@0	211	tree.lock = translate(tree.lock);
aoqi@0	212	tree.body = translate(tree.body);
aoqi@0	213	result = tree;
aoqi@0	214	}
aoqi@0	215
aoqi@0	216	public void visitTry(JCTry tree) {
aoqi@0	217	tree.resources = translate(tree.resources);
aoqi@0	218	tree.body = translate(tree.body);
aoqi@0	219	tree.catchers = translateCatchers(tree.catchers);
aoqi@0	220	tree.finalizer = translate(tree.finalizer);
aoqi@0	221	result = tree;
aoqi@0	222	}
aoqi@0	223
aoqi@0	224	public void visitCatch(JCCatch tree) {
aoqi@0	225	tree.param = translate(tree.param);
aoqi@0	226	tree.body = translate(tree.body);
aoqi@0	227	result = tree;
aoqi@0	228	}
aoqi@0	229
aoqi@0	230	public void visitConditional(JCConditional tree) {
aoqi@0	231	tree.cond = translate(tree.cond);
aoqi@0	232	tree.truepart = translate(tree.truepart);
aoqi@0	233	tree.falsepart = translate(tree.falsepart);
aoqi@0	234	result = tree;
aoqi@0	235	}
aoqi@0	236
aoqi@0	237	public void visitIf(JCIf tree) {
aoqi@0	238	tree.cond = translate(tree.cond);
aoqi@0	239	tree.thenpart = translate(tree.thenpart);
aoqi@0	240	tree.elsepart = translate(tree.elsepart);
aoqi@0	241	result = tree;
aoqi@0	242	}
aoqi@0	243
aoqi@0	244	public void visitExec(JCExpressionStatement tree) {
aoqi@0	245	tree.expr = translate(tree.expr);
aoqi@0	246	result = tree;
aoqi@0	247	}
aoqi@0	248
aoqi@0	249	public void visitBreak(JCBreak tree) {
aoqi@0	250	result = tree;
aoqi@0	251	}
aoqi@0	252
aoqi@0	253	public void visitContinue(JCContinue tree) {
aoqi@0	254	result = tree;
aoqi@0	255	}
aoqi@0	256
aoqi@0	257	public void visitReturn(JCReturn tree) {
aoqi@0	258	tree.expr = translate(tree.expr);
aoqi@0	259	result = tree;
aoqi@0	260	}
aoqi@0	261
aoqi@0	262	public void visitThrow(JCThrow tree) {
aoqi@0	263	tree.expr = translate(tree.expr);
aoqi@0	264	result = tree;
aoqi@0	265	}
aoqi@0	266
aoqi@0	267	public void visitAssert(JCAssert tree) {
aoqi@0	268	tree.cond = translate(tree.cond);
aoqi@0	269	tree.detail = translate(tree.detail);
aoqi@0	270	result = tree;
aoqi@0	271	}
aoqi@0	272
aoqi@0	273	public void visitApply(JCMethodInvocation tree) {
aoqi@0	274	tree.meth = translate(tree.meth);
aoqi@0	275	tree.args = translate(tree.args);
aoqi@0	276	result = tree;
aoqi@0	277	}
aoqi@0	278
aoqi@0	279	public void visitNewClass(JCNewClass tree) {
aoqi@0	280	tree.encl = translate(tree.encl);
aoqi@0	281	tree.clazz = translate(tree.clazz);
aoqi@0	282	tree.args = translate(tree.args);
aoqi@0	283	tree.def = translate(tree.def);
aoqi@0	284	result = tree;
aoqi@0	285	}
aoqi@0	286
aoqi@0	287	public void visitLambda(JCLambda tree) {
aoqi@0	288	tree.params = translate(tree.params);
aoqi@0	289	tree.body = translate(tree.body);
aoqi@0	290	result = tree;
aoqi@0	291	}
aoqi@0	292
aoqi@0	293	public void visitNewArray(JCNewArray tree) {
aoqi@0	294	tree.annotations = translate(tree.annotations);
aoqi@0	295	List<List<JCAnnotation>> dimAnnos = List.nil();
aoqi@0	296	for (List<JCAnnotation> origDimAnnos : tree.dimAnnotations)
aoqi@0	297	dimAnnos = dimAnnos.append(translate(origDimAnnos));
aoqi@0	298	tree.dimAnnotations = dimAnnos;
aoqi@0	299	tree.elemtype = translate(tree.elemtype);
aoqi@0	300	tree.dims = translate(tree.dims);
aoqi@0	301	tree.elems = translate(tree.elems);
aoqi@0	302	result = tree;
aoqi@0	303	}
aoqi@0	304
aoqi@0	305	public void visitParens(JCParens tree) {
aoqi@0	306	tree.expr = translate(tree.expr);
aoqi@0	307	result = tree;
aoqi@0	308	}
aoqi@0	309
aoqi@0	310	public void visitAssign(JCAssign tree) {
aoqi@0	311	tree.lhs = translate(tree.lhs);
aoqi@0	312	tree.rhs = translate(tree.rhs);
aoqi@0	313	result = tree;
aoqi@0	314	}
aoqi@0	315
aoqi@0	316	public void visitAssignop(JCAssignOp tree) {
aoqi@0	317	tree.lhs = translate(tree.lhs);
aoqi@0	318	tree.rhs = translate(tree.rhs);
aoqi@0	319	result = tree;
aoqi@0	320	}
aoqi@0	321
aoqi@0	322	public void visitUnary(JCUnary tree) {
aoqi@0	323	tree.arg = translate(tree.arg);
aoqi@0	324	result = tree;
aoqi@0	325	}
aoqi@0	326
aoqi@0	327	public void visitBinary(JCBinary tree) {
aoqi@0	328	tree.lhs = translate(tree.lhs);
aoqi@0	329	tree.rhs = translate(tree.rhs);
aoqi@0	330	result = tree;
aoqi@0	331	}
aoqi@0	332
aoqi@0	333	public void visitTypeCast(JCTypeCast tree) {
aoqi@0	334	tree.clazz = translate(tree.clazz);
aoqi@0	335	tree.expr = translate(tree.expr);
aoqi@0	336	result = tree;
aoqi@0	337	}
aoqi@0	338
aoqi@0	339	public void visitTypeTest(JCInstanceOf tree) {
aoqi@0	340	tree.expr = translate(tree.expr);
aoqi@0	341	tree.clazz = translate(tree.clazz);
aoqi@0	342	result = tree;
aoqi@0	343	}
aoqi@0	344
aoqi@0	345	public void visitIndexed(JCArrayAccess tree) {
aoqi@0	346	tree.indexed = translate(tree.indexed);
aoqi@0	347	tree.index = translate(tree.index);
aoqi@0	348	result = tree;
aoqi@0	349	}
aoqi@0	350
aoqi@0	351	public void visitSelect(JCFieldAccess tree) {
aoqi@0	352	tree.selected = translate(tree.selected);
aoqi@0	353	result = tree;
aoqi@0	354	}
aoqi@0	355
aoqi@0	356	public void visitReference(JCMemberReference tree) {
aoqi@0	357	tree.expr = translate(tree.expr);
aoqi@0	358	result = tree;
aoqi@0	359	}
aoqi@0	360
aoqi@0	361	public void visitIdent(JCIdent tree) {
aoqi@0	362	result = tree;
aoqi@0	363	}
aoqi@0	364
aoqi@0	365	public void visitLiteral(JCLiteral tree) {
aoqi@0	366	result = tree;
aoqi@0	367	}
aoqi@0	368
aoqi@0	369	public void visitTypeIdent(JCPrimitiveTypeTree tree) {
aoqi@0	370	result = tree;
aoqi@0	371	}
aoqi@0	372
aoqi@0	373	public void visitTypeArray(JCArrayTypeTree tree) {
aoqi@0	374	tree.elemtype = translate(tree.elemtype);
aoqi@0	375	result = tree;
aoqi@0	376	}
aoqi@0	377
aoqi@0	378	public void visitTypeApply(JCTypeApply tree) {
aoqi@0	379	tree.clazz = translate(tree.clazz);
aoqi@0	380	tree.arguments = translate(tree.arguments);
aoqi@0	381	result = tree;
aoqi@0	382	}
aoqi@0	383
aoqi@0	384	public void visitTypeUnion(JCTypeUnion tree) {
aoqi@0	385	tree.alternatives = translate(tree.alternatives);
aoqi@0	386	result = tree;
aoqi@0	387	}
aoqi@0	388
aoqi@0	389	public void visitTypeIntersection(JCTypeIntersection tree) {
aoqi@0	390	tree.bounds = translate(tree.bounds);
aoqi@0	391	result = tree;
aoqi@0	392	}
aoqi@0	393
aoqi@0	394	public void visitTypeParameter(JCTypeParameter tree) {
aoqi@0	395	tree.annotations = translate(tree.annotations);
aoqi@0	396	tree.bounds = translate(tree.bounds);
aoqi@0	397	result = tree;
aoqi@0	398	}
aoqi@0	399
aoqi@0	400	@Override
aoqi@0	401	public void visitWildcard(JCWildcard tree) {
aoqi@0	402	tree.kind = translate(tree.kind);
aoqi@0	403	tree.inner = translate(tree.inner);
aoqi@0	404	result = tree;
aoqi@0	405	}
aoqi@0	406
aoqi@0	407	@Override
aoqi@0	408	public void visitTypeBoundKind(TypeBoundKind tree) {
aoqi@0	409	result = tree;
aoqi@0	410	}
aoqi@0	411
aoqi@0	412	public void visitErroneous(JCErroneous tree) {
aoqi@0	413	result = tree;
aoqi@0	414	}
aoqi@0	415
aoqi@0	416	public void visitLetExpr(LetExpr tree) {
aoqi@0	417	tree.defs = translateVarDefs(tree.defs);
aoqi@0	418	tree.expr = translate(tree.expr);
aoqi@0	419	result = tree;
aoqi@0	420	}
aoqi@0	421
aoqi@0	422	public void visitModifiers(JCModifiers tree) {
aoqi@0	423	tree.annotations = translateAnnotations(tree.annotations);
aoqi@0	424	result = tree;
aoqi@0	425	}
aoqi@0	426
aoqi@0	427	public void visitAnnotation(JCAnnotation tree) {
aoqi@0	428	tree.annotationType = translate(tree.annotationType);
aoqi@0	429	tree.args = translate(tree.args);
aoqi@0	430	result = tree;
aoqi@0	431	}
aoqi@0	432
aoqi@0	433	public void visitAnnotatedType(JCAnnotatedType tree) {
aoqi@0	434	tree.annotations = translate(tree.annotations);
aoqi@0	435	tree.underlyingType = translate(tree.underlyingType);
aoqi@0	436	result = tree;
aoqi@0	437	}
aoqi@0	438
aoqi@0	439	public void visitTree(JCTree tree) {
aoqi@0	440	throw new AssertionError(tree);
aoqi@0	441	}
aoqi@0	442	}