+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2003 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-package net.sourceforge.phpeclipse.internal.compiler.ast;
-
-import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
-import net.sourceforge.phpdt.internal.compiler.codegen.CaseLabel;
-import net.sourceforge.phpdt.internal.compiler.flow.FlowContext;
-import net.sourceforge.phpdt.internal.compiler.flow.FlowInfo;
-import net.sourceforge.phpdt.internal.compiler.impl.Constant;
-import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
-import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
-
-
-public class Case extends Statement {
-
- public Expression constantExpression;
- public CaseLabel targetLabel;
- public Case(int sourceStart, Expression constantExpression) {
- this.constantExpression = constantExpression;
- this.sourceEnd = constantExpression.sourceEnd;
- this.sourceStart = sourceStart;
- }
-
- public FlowInfo analyseCode(
- BlockScope currentScope,
- FlowContext flowContext,
- FlowInfo flowInfo) {
-
- if (constantExpression.constant == NotAConstant)
- currentScope.problemReporter().caseExpressionMustBeConstant(constantExpression);
-
- this.constantExpression.analyseCode(currentScope, flowContext, flowInfo);
- return flowInfo;
- }
-
- /**
- * Case code generation
- *
- */
-// public void generateCode(BlockScope currentScope, CodeStream codeStream) {
-//
-// if ((bits & IsReachableMASK) == 0) {
-// return;
-// }
-// int pc = codeStream.position;
-// targetLabel.place();
-// codeStream.recordPositionsFrom(pc, this.sourceStart);
-// }
-
- /**
- * No-op : should use resolveCase(...) instead.
- */
- public void resolve(BlockScope scope) {
- }
-
- public Constant resolveCase(
- BlockScope scope,
- TypeBinding switchType,
- SwitchStatement switchStatement) {
-
- // add into the collection of cases of the associated switch statement
- switchStatement.cases[switchStatement.caseCount++] = this;
- TypeBinding caseType = constantExpression.resolveType(scope);
- if (caseType == null || switchType == null)
- return null;
- if (constantExpression.isConstantValueOfTypeAssignableToType(caseType, switchType))
- return constantExpression.constant;
- if (caseType.isCompatibleWith(switchType))
- return constantExpression.constant;
- scope.problemReporter().typeMismatchErrorActualTypeExpectedType(
- constantExpression,
- caseType,
- switchType);
- return null;
- }
-
- public String toString(int tab) {
-
- String s = tabString(tab);
- s = s + "case " + constantExpression.toStringExpression() + " : "; //$NON-NLS-1$ //$NON-NLS-2$
- return s;
- }
-
- public void traverse(
- IAbstractSyntaxTreeVisitor visitor,
- BlockScope blockScope) {
-
- if (visitor.visit(this, blockScope)) {
- constantExpression.traverse(visitor, blockScope);
- }
- visitor.endVisit(this, blockScope);
- }
-}