Wed, 02 Jul 2008 12:56:02 -0700
6719955: Update copyright year
Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell
1 /*
2 * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
26 package com.sun.tools.javac.tree;
28 import com.sun.source.tree.Tree;
29 import com.sun.source.tree.*;
30 import com.sun.tools.javac.tree.JCTree.*;
31 import com.sun.tools.javac.util.List;
32 import com.sun.tools.javac.util.ListBuffer;
33 import java.util.Map;
35 /**
36 * Creates a copy of a tree, using a given TreeMaker.
37 * Names, literal values, etc are shared with the original.
38 *
39 * <p><b>This is NOT part of any API supported by Sun Microsystems. If
40 * you write code that depends on this, you do so at your own risk.
41 * This code and its internal interfaces are subject to change or
42 * deletion without notice.</b>
43 */
44 public class TreeCopier<P> implements TreeVisitor<JCTree,P> {
45 private TreeMaker M;
47 /** Creates a new instance of TreeCopier */
48 public TreeCopier(TreeMaker M) {
49 this.M = M;
50 }
52 public <T extends JCTree> T copy(T tree) {
53 return copy(tree, null);
54 }
56 @SuppressWarnings("unchecked")
57 public <T extends JCTree> T copy(T tree, P p) {
58 if (tree == null)
59 return null;
60 return (T) (tree.accept(this, p));
61 }
63 public <T extends JCTree> List<T> copy(List<T> trees) {
64 return copy(trees, null);
65 }
67 public <T extends JCTree> List<T> copy(List<T> trees, P p) {
68 if (trees == null)
69 return null;
70 ListBuffer<T> lb = new ListBuffer<T>();
71 for (T tree: trees)
72 lb.append(copy(tree, p));
73 return lb.toList();
74 }
76 public JCTree visitAnnotation(AnnotationTree node, P p) {
77 JCAnnotation t = (JCAnnotation) node;
78 JCTree annotationType = copy(t.annotationType, p);
79 List<JCExpression> args = copy(t.args, p);
80 return M.at(t.pos).Annotation(annotationType, args);
81 }
83 public JCTree visitAssert(AssertTree node, P p) {
84 JCAssert t = (JCAssert) node;
85 JCExpression cond = copy(t.cond, p);
86 JCExpression detail = copy(t.detail, p);
87 return M.at(t.pos).Assert(cond, detail);
88 }
90 public JCTree visitAssignment(AssignmentTree node, P p) {
91 JCAssign t = (JCAssign) node;
92 JCExpression lhs = copy(t.lhs, p);
93 JCExpression rhs = copy(t.rhs, p);
94 return M.at(t.pos).Assign(lhs, rhs);
95 }
97 public JCTree visitCompoundAssignment(CompoundAssignmentTree node, P p) {
98 JCAssignOp t = (JCAssignOp) node;
99 JCTree lhs = copy(t.lhs, p);
100 JCTree rhs = copy(t.rhs, p);
101 return M.at(t.pos).Assignop(t.getTag(), lhs, rhs);
102 }
104 public JCTree visitBinary(BinaryTree node, P p) {
105 JCBinary t = (JCBinary) node;
106 JCExpression lhs = copy(t.lhs, p);
107 JCExpression rhs = copy(t.rhs, p);
108 return M.at(t.pos).Binary(t.getTag(), lhs, rhs);
109 }
111 public JCTree visitBlock(BlockTree node, P p) {
112 JCBlock t = (JCBlock) node;
113 List<JCStatement> stats = copy(t.stats, p);
114 return M.at(t.pos).Block(t.flags, stats);
115 }
117 public JCTree visitBreak(BreakTree node, P p) {
118 JCBreak t = (JCBreak) node;
119 return M.at(t.pos).Break(t.label);
120 }
122 public JCTree visitCase(CaseTree node, P p) {
123 JCCase t = (JCCase) node;
124 JCExpression pat = copy(t.pat, p);
125 List<JCStatement> stats = copy(t.stats, p);
126 return M.at(t.pos).Case(pat, stats);
127 }
129 public JCTree visitCatch(CatchTree node, P p) {
130 JCCatch t = (JCCatch) node;
131 JCVariableDecl param = copy(t.param, p);
132 JCBlock body = copy(t.body, p);
133 return M.at(t.pos).Catch(param, body);
134 }
136 public JCTree visitClass(ClassTree node, P p) {
137 JCClassDecl t = (JCClassDecl) node;
138 JCModifiers mods = copy(t.mods, p);
139 List<JCTypeParameter> typarams = copy(t.typarams, p);
140 JCTree extending = copy(t.extending, p);
141 List<JCExpression> implementing = copy(t.implementing, p);
142 List<JCTree> defs = copy(t.defs, p);
143 return M.at(t.pos).ClassDef(mods, t.name, typarams, extending, implementing, defs);
144 }
146 public JCTree visitConditionalExpression(ConditionalExpressionTree node, P p) {
147 JCConditional t = (JCConditional) node;
148 JCExpression cond = copy(t.cond, p);
149 JCExpression truepart = copy(t.truepart, p);
150 JCExpression falsepart = copy(t.falsepart, p);
151 return M.at(t.pos).Conditional(cond, truepart, falsepart);
152 }
154 public JCTree visitContinue(ContinueTree node, P p) {
155 JCContinue t = (JCContinue) node;
156 return M.at(t.pos).Continue(t.label);
157 }
159 public JCTree visitDoWhileLoop(DoWhileLoopTree node, P p) {
160 JCDoWhileLoop t = (JCDoWhileLoop) node;
161 JCStatement body = copy(t.body, p);
162 JCExpression cond = copy(t.cond, p);
163 return M.at(t.pos).DoLoop(body, cond);
164 }
166 public JCTree visitErroneous(ErroneousTree node, P p) {
167 JCErroneous t = (JCErroneous) node;
168 List<? extends JCTree> errs = copy(t.errs, p);
169 return M.at(t.pos).Erroneous(errs);
170 }
172 public JCTree visitExpressionStatement(ExpressionStatementTree node, P p) {
173 JCExpressionStatement t = (JCExpressionStatement) node;
174 JCExpression expr = copy(t.expr, p);
175 return M.at(t.pos).Exec(expr);
176 }
178 public JCTree visitEnhancedForLoop(EnhancedForLoopTree node, P p) {
179 JCEnhancedForLoop t = (JCEnhancedForLoop) node;
180 JCVariableDecl var = copy(t.var, p);
181 JCExpression expr = copy(t.expr, p);
182 JCStatement body = copy(t.body, p);
183 return M.at(t.pos).ForeachLoop(var, expr, body);
184 }
186 public JCTree visitForLoop(ForLoopTree node, P p) {
187 JCForLoop t = (JCForLoop) node;
188 List<JCStatement> init = copy(t.init, p);
189 JCExpression cond = copy(t.cond, p);
190 List<JCExpressionStatement> step = copy(t.step, p);
191 JCStatement body = copy(t.body, p);
192 return M.at(t.pos).ForLoop(init, cond, step, body);
193 }
195 public JCTree visitIdentifier(IdentifierTree node, P p) {
196 JCIdent t = (JCIdent) node;
197 return M.at(t.pos).Ident(t.name);
198 }
200 public JCTree visitIf(IfTree node, P p) {
201 JCIf t = (JCIf) node;
202 JCExpression cond = copy(t.cond, p);
203 JCStatement thenpart = copy(t.thenpart, p);
204 JCStatement elsepart = copy(t.elsepart, p);
205 return M.at(t.pos).If(cond, thenpart, elsepart);
206 }
208 public JCTree visitImport(ImportTree node, P p) {
209 JCImport t = (JCImport) node;
210 JCTree qualid = copy(t.qualid, p);
211 return M.at(t.pos).Import(qualid, t.staticImport);
212 }
214 public JCTree visitArrayAccess(ArrayAccessTree node, P p) {
215 JCArrayAccess t = (JCArrayAccess) node;
216 JCExpression indexed = copy(t.indexed, p);
217 JCExpression index = copy(t.index, p);
218 return M.at(t.pos).Indexed(indexed, index);
219 }
221 public JCTree visitLabeledStatement(LabeledStatementTree node, P p) {
222 JCLabeledStatement t = (JCLabeledStatement) node;
223 JCStatement body = copy(t.body, p);
224 return M.at(t.pos).Labelled(t.label, t.body);
225 }
227 public JCTree visitLiteral(LiteralTree node, P p) {
228 JCLiteral t = (JCLiteral) node;
229 return M.at(t.pos).Literal(t.typetag, t.value);
230 }
232 public JCTree visitMethod(MethodTree node, P p) {
233 JCMethodDecl t = (JCMethodDecl) node;
234 JCModifiers mods = copy(t.mods, p);
235 JCExpression restype = copy(t.restype, p);
236 List<JCTypeParameter> typarams = copy(t.typarams, p);
237 List<JCVariableDecl> params = copy(t.params, p);
238 List<JCExpression> thrown = copy(t.thrown, p);
239 JCBlock body = copy(t.body, p);
240 JCExpression defaultValue = copy(t.defaultValue, p);
241 return M.at(t.pos).MethodDef(mods, t.name, restype, typarams, params, thrown, body, defaultValue);
242 }
244 public JCTree visitMethodInvocation(MethodInvocationTree node, P p) {
245 JCMethodInvocation t = (JCMethodInvocation) node;
246 List<JCExpression> typeargs = copy(t.typeargs, p);
247 JCExpression meth = copy(t.meth, p);
248 List<JCExpression> args = copy(t.args, p);
249 return M.at(t.pos).Apply(typeargs, meth, args);
250 }
252 public JCTree visitModifiers(ModifiersTree node, P p) {
253 JCModifiers t = (JCModifiers) node;
254 List<JCAnnotation> annotations = copy(t.annotations, p);
255 return M.at(t.pos).Modifiers(t.flags, annotations);
256 }
258 public JCTree visitNewArray(NewArrayTree node, P p) {
259 JCNewArray t = (JCNewArray) node;
260 JCExpression elemtype = copy(t.elemtype, p);
261 List<JCExpression> dims = copy(t.dims, p);
262 List<JCExpression> elems = copy(t.elems, p);
263 return M.at(t.pos).NewArray(elemtype, dims, elems);
264 }
266 public JCTree visitNewClass(NewClassTree node, P p) {
267 JCNewClass t = (JCNewClass) node;
268 JCExpression encl = copy(t.encl, p);
269 List<JCExpression> typeargs = copy(t.typeargs, p);
270 JCExpression clazz = copy(t.clazz, p);
271 List<JCExpression> args = copy(t.args, p);
272 JCClassDecl def = copy(t.def, p);
273 return M.at(t.pos).NewClass(encl, typeargs, clazz, args, def);
274 }
276 public JCTree visitParenthesized(ParenthesizedTree node, P p) {
277 JCParens t = (JCParens) node;
278 JCExpression expr = copy(t.expr, p);
279 return M.at(t.pos).Parens(expr);
280 }
282 public JCTree visitReturn(ReturnTree node, P p) {
283 JCReturn t = (JCReturn) node;
284 JCExpression expr = copy(t.expr, p);
285 return M.at(t.pos).Return(expr);
286 }
288 public JCTree visitMemberSelect(MemberSelectTree node, P p) {
289 JCFieldAccess t = (JCFieldAccess) node;
290 JCExpression selected = copy(t.selected, p);
291 return M.at(t.pos).Select(selected, t.name);
292 }
294 public JCTree visitEmptyStatement(EmptyStatementTree node, P p) {
295 JCSkip t = (JCSkip) node;
296 return M.at(t.pos).Skip();
297 }
299 public JCTree visitSwitch(SwitchTree node, P p) {
300 JCSwitch t = (JCSwitch) node;
301 JCExpression selector = copy(t.selector, p);
302 List<JCCase> cases = copy(t.cases, p);
303 return M.at(t.pos).Switch(selector, cases);
304 }
306 public JCTree visitSynchronized(SynchronizedTree node, P p) {
307 JCSynchronized t = (JCSynchronized) node;
308 JCExpression lock = copy(t.lock, p);
309 JCBlock body = copy(t.body, p);
310 return M.at(t.pos).Synchronized(lock, body);
311 }
313 public JCTree visitThrow(ThrowTree node, P p) {
314 JCThrow t = (JCThrow) node;
315 JCTree expr = copy(t.expr, p);
316 return M.at(t.pos).Throw(expr);
317 }
319 public JCTree visitCompilationUnit(CompilationUnitTree node, P p) {
320 JCCompilationUnit t = (JCCompilationUnit) node;
321 List<JCAnnotation> packageAnnotations = copy(t.packageAnnotations, p);
322 JCExpression pid = copy(t.pid, p);
323 List<JCTree> defs = copy(t.defs, p);
324 return M.at(t.pos).TopLevel(packageAnnotations, pid, defs);
325 }
327 public JCTree visitTry(TryTree node, P p) {
328 JCTry t = (JCTry) node;
329 JCBlock body = copy(t.body, p);
330 List<JCCatch> catchers = copy(t.catchers, p);
331 JCBlock finalizer = copy(t.finalizer, p);
332 return M.at(t.pos).Try(body, catchers, finalizer);
333 }
335 public JCTree visitParameterizedType(ParameterizedTypeTree node, P p) {
336 JCTypeApply t = (JCTypeApply) node;
337 JCExpression clazz = copy(t.clazz, p);
338 List<JCExpression> arguments = copy(t.arguments, p);
339 return M.at(t.pos).TypeApply(clazz, arguments);
340 }
342 public JCTree visitArrayType(ArrayTypeTree node, P p) {
343 JCArrayTypeTree t = (JCArrayTypeTree) node;
344 JCExpression elemtype = copy(t.elemtype, p);
345 return M.at(t.pos).TypeArray(elemtype);
346 }
348 public JCTree visitTypeCast(TypeCastTree node, P p) {
349 JCTypeCast t = (JCTypeCast) node;
350 JCTree clazz = copy(t.clazz, p);
351 JCExpression expr = copy(t.expr, p);
352 return M.at(t.pos).TypeCast(clazz, expr);
353 }
355 public JCTree visitPrimitiveType(PrimitiveTypeTree node, P p) {
356 JCPrimitiveTypeTree t = (JCPrimitiveTypeTree) node;
357 return M.at(t.pos).TypeIdent(t.typetag);
358 }
360 public JCTree visitTypeParameter(TypeParameterTree node, P p) {
361 JCTypeParameter t = (JCTypeParameter) node;
362 List<JCExpression> bounds = copy(t.bounds, p);
363 return M.at(t.pos).TypeParameter(t.name, t.bounds);
364 }
366 public JCTree visitInstanceOf(InstanceOfTree node, P p) {
367 JCInstanceOf t = (JCInstanceOf) node;
368 JCExpression expr = copy(t.expr, p);
369 JCTree clazz = copy(t.clazz, p);
370 return M.at(t.pos).TypeTest(expr, clazz);
371 }
373 public JCTree visitUnary(UnaryTree node, P p) {
374 JCUnary t = (JCUnary) node;
375 JCExpression arg = copy(t.arg, p);
376 return M.at(t.pos).Unary(t.getTag(), arg);
377 }
379 public JCTree visitVariable(VariableTree node, P p) {
380 JCVariableDecl t = (JCVariableDecl) node;
381 JCModifiers mods = copy(t.mods, p);
382 JCExpression vartype = copy(t.vartype, p);
383 JCExpression init = copy(t.init, p);
384 return M.at(t.pos).VarDef(mods, t.name, vartype, init);
385 }
387 public JCTree visitWhileLoop(WhileLoopTree node, P p) {
388 JCWhileLoop t = (JCWhileLoop) node;
389 JCStatement body = copy(t.body, p);
390 JCExpression cond = copy(t.cond, p);
391 return M.at(t.pos).WhileLoop(cond, body);
392 }
394 public JCTree visitWildcard(WildcardTree node, P p) {
395 JCWildcard t = (JCWildcard) node;
396 TypeBoundKind kind = M.at(t.kind.pos).TypeBoundKind(t.kind.kind);
397 JCTree inner = copy(t.inner, p);
398 return M.at(t.pos).Wildcard(kind, inner);
399 }
401 public JCTree visitOther(Tree node, P p) {
402 JCTree tree = (JCTree) node;
403 switch (tree.getTag()) {
404 case JCTree.LETEXPR: {
405 LetExpr t = (LetExpr) node;
406 List<JCVariableDecl> defs = copy(t.defs, p);
407 JCTree expr = copy(t.expr, p);
408 return M.at(t.pos).LetExpr(defs, expr);
409 }
410 default:
411 throw new AssertionError("unknown tree tag: " + tree.getTag());
412 }
413 }
415 }