| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.codehaus.groovy.ast; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.codehaus.groovy.ast.expr.*; |
| import org.codehaus.groovy.ast.stmt.AssertStatement; |
| import org.codehaus.groovy.ast.stmt.BlockStatement; |
| import org.codehaus.groovy.ast.stmt.BreakStatement; |
| import org.codehaus.groovy.ast.stmt.CaseStatement; |
| import org.codehaus.groovy.ast.stmt.CatchStatement; |
| import org.codehaus.groovy.ast.stmt.ContinueStatement; |
| import org.codehaus.groovy.ast.stmt.DoWhileStatement; |
| import org.codehaus.groovy.ast.stmt.ExpressionStatement; |
| import org.codehaus.groovy.ast.stmt.ForStatement; |
| import org.codehaus.groovy.ast.stmt.IfStatement; |
| import org.codehaus.groovy.ast.stmt.ReturnStatement; |
| import org.codehaus.groovy.ast.stmt.Statement; |
| import org.codehaus.groovy.ast.stmt.SwitchStatement; |
| import org.codehaus.groovy.ast.stmt.SynchronizedStatement; |
| import org.codehaus.groovy.ast.stmt.ThrowStatement; |
| import org.codehaus.groovy.ast.stmt.TryCatchStatement; |
| import org.codehaus.groovy.ast.stmt.WhileStatement; |
| |
| /** |
| * Abstract base class for any GroovyCodeVisitory which by default |
| * just walks the code and expression tree |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public abstract class CodeVisitorSupport implements GroovyCodeVisitor { |
| |
| public void visitBlockStatement(BlockStatement block) { |
| List statements = block.getStatements(); |
| for (Iterator iter = statements.iterator(); iter.hasNext(); ) { |
| Statement statement = (Statement) iter.next(); |
| statement.visit(this); |
| } |
| } |
| |
| public void visitForLoop(ForStatement forLoop) { |
| forLoop.getCollectionExpression().visit(this); |
| forLoop.getLoopBlock().visit(this); |
| } |
| |
| public void visitWhileLoop(WhileStatement loop) { |
| loop.getBooleanExpression().visit(this); |
| loop.getLoopBlock().visit(this); |
| } |
| |
| public void visitDoWhileLoop(DoWhileStatement loop) { |
| loop.getLoopBlock().visit(this); |
| loop.getBooleanExpression().visit(this); |
| } |
| |
| public void visitIfElse(IfStatement ifElse) { |
| ifElse.getBooleanExpression().visit(this); |
| ifElse.getIfBlock().visit(this); |
| ifElse.getElseBlock().visit(this); |
| } |
| |
| public void visitExpressionStatement(ExpressionStatement statement) { |
| statement.getExpression().visit(this); |
| } |
| |
| public void visitReturnStatement(ReturnStatement statement) { |
| statement.getExpression().visit(this); |
| } |
| |
| public void visitAssertStatement(AssertStatement statement) { |
| statement.getBooleanExpression().visit(this); |
| statement.getMessageExpression().visit(this); |
| } |
| |
| public void visitTryCatchFinally(TryCatchStatement statement) { |
| statement.getTryStatement().visit(this); |
| List list = statement.getCatchStatements(); |
| for (Iterator iter = list.iterator(); iter.hasNext(); ) { |
| CatchStatement catchStatement = (CatchStatement) iter.next(); |
| catchStatement.visit(this); |
| } |
| statement.getFinallyStatement().visit(this); |
| } |
| |
| public void visitSwitch(SwitchStatement statement) { |
| statement.getExpression().visit(this); |
| List list = statement.getCaseStatements(); |
| for (Iterator iter = list.iterator(); iter.hasNext(); ) { |
| CaseStatement caseStatement = (CaseStatement) iter.next(); |
| caseStatement.visit(this); |
| } |
| statement.getDefaultStatement().visit(this); |
| } |
| |
| public void visitCaseStatement(CaseStatement statement) { |
| statement.getExpression().visit(this); |
| statement.getCode().visit(this); |
| } |
| |
| public void visitBreakStatement(BreakStatement statement) { |
| } |
| |
| public void visitContinueStatement(ContinueStatement statement) { |
| } |
| |
| public void visitSynchronizedStatement(SynchronizedStatement statement) { |
| statement.getExpression().visit(this); |
| statement.getCode().visit(this); |
| } |
| |
| public void visitThrowStatement(ThrowStatement statement) { |
| statement.getExpression().visit(this); |
| } |
| |
| public void visitMethodCallExpression(MethodCallExpression call) { |
| call.getObjectExpression().visit(this); |
| call.getMethod().visit(this); |
| call.getArguments().visit(this); |
| } |
| |
| public void visitStaticMethodCallExpression(StaticMethodCallExpression call) { |
| call.getArguments().visit(this); |
| } |
| |
| public void visitConstructorCallExpression(ConstructorCallExpression call) { |
| call.getArguments().visit(this); |
| } |
| |
| public void visitBinaryExpression(BinaryExpression expression) { |
| expression.getLeftExpression().visit(this); |
| expression.getRightExpression().visit(this); |
| } |
| |
| public void visitTernaryExpression(TernaryExpression expression) { |
| expression.getBooleanExpression().visit(this); |
| expression.getTrueExpression().visit(this); |
| expression.getFalseExpression().visit(this); |
| } |
| |
| public void visitPostfixExpression(PostfixExpression expression) { |
| expression.getExpression().visit(this); |
| } |
| |
| public void visitPrefixExpression(PrefixExpression expression) { |
| expression.getExpression().visit(this); |
| } |
| |
| public void visitBooleanExpression(BooleanExpression expression) { |
| expression.getExpression().visit(this); |
| } |
| |
| public void visitNotExpression(NotExpression expression) { |
| expression.getExpression().visit(this); |
| } |
| |
| public void visitClosureExpression(ClosureExpression expression) { |
| expression.getCode().visit(this); |
| } |
| |
| public void visitTupleExpression(TupleExpression expression) { |
| visitListOfExpressions(expression.getExpressions()); |
| } |
| |
| public void visitListExpression(ListExpression expression) { |
| visitListOfExpressions(expression.getExpressions()); |
| } |
| |
| public void visitArrayExpression(ArrayExpression expression) { |
| visitListOfExpressions(expression.getExpressions()); |
| visitListOfExpressions(expression.getSizeExpression()); |
| } |
| |
| public void visitMapExpression(MapExpression expression) { |
| visitListOfExpressions(expression.getMapEntryExpressions()); |
| |
| } |
| |
| public void visitMapEntryExpression(MapEntryExpression expression) { |
| expression.getKeyExpression().visit(this); |
| expression.getValueExpression().visit(this); |
| |
| } |
| |
| public void visitRangeExpression(RangeExpression expression) { |
| expression.getFrom().visit(this); |
| expression.getTo().visit(this); |
| } |
| |
| public void visitSpreadExpression(SpreadExpression expression) { |
| expression.getExpression().visit(this); |
| } |
| |
| public void visitSpreadMapExpression(SpreadMapExpression expression) { |
| expression.getExpression().visit(this); |
| } |
| |
| public void visitMethodPointerExpression(MethodPointerExpression expression) { |
| expression.getExpression().visit(this); |
| expression.getMethodName().visit(this); |
| } |
| |
| public void visitNegationExpression(NegationExpression expression) { |
| expression.getExpression().visit(this); |
| } |
| |
| public void visitBitwiseNegExpression(BitwiseNegExpression expression) { |
| expression.getExpression().visit(this); |
| } |
| |
| public void visitCastExpression(CastExpression expression) { |
| expression.getExpression().visit(this); |
| } |
| |
| public void visitConstantExpression(ConstantExpression expression) { |
| } |
| |
| public void visitClassExpression(ClassExpression expression) { |
| } |
| |
| public void visitVariableExpression(VariableExpression expression) { |
| } |
| |
| public void visitDeclarationExpression(DeclarationExpression expression) { |
| visitBinaryExpression(expression); |
| } |
| |
| public void visitPropertyExpression(PropertyExpression expression) { |
| expression.getObjectExpression().visit(this); |
| expression.getProperty().visit(this); |
| } |
| |
| public void visitAttributeExpression(AttributeExpression expression) { |
| expression.getObjectExpression().visit(this); |
| expression.getProperty().visit(this); |
| } |
| |
| public void visitFieldExpression(FieldExpression expression) { |
| } |
| |
| public void visitRegexExpression(RegexExpression expression) { |
| } |
| |
| public void visitGStringExpression(GStringExpression expression) { |
| visitListOfExpressions(expression.getStrings()); |
| visitListOfExpressions(expression.getValues()); |
| } |
| |
| protected void visitListOfExpressions(List list) { |
| if (list==null) return; |
| for (Iterator iter = list.iterator(); iter.hasNext(); ) { |
| Expression expression = (Expression) iter.next(); |
| if (expression instanceof SpreadExpression) { |
| Expression spread = ((SpreadExpression) expression).getExpression(); |
| spread.visit(this); |
| } else { |
| expression.visit(this); |
| } |
| } |
| } |
| |
| public void visitCatchStatement(CatchStatement statement) { |
| statement.getCode().visit(this); |
| } |
| |
| public void visitArgumentlistExpression(ArgumentListExpression ale) { |
| visitTupleExpression(ale); |
| } |
| |
| public void visitClosureListExpression(ClosureListExpression cle) { |
| visitListOfExpressions(cle.getExpressions()); |
| } |
| } |