/*******************************************************************************
- * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
+ * 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 v0.5
+ * 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-v05.html
+ * http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
- ******************************************************************************/
+ *******************************************************************************/
package net.sourceforge.phpdt.internal.compiler.ast;
+import net.sourceforge.phpdt.core.compiler.CharOperation;
+import net.sourceforge.phpdt.internal.compiler.ASTVisitor;
import net.sourceforge.phpdt.internal.compiler.CompilationResult;
-import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
-import net.sourceforge.phpdt.internal.compiler.lookup.*;
-import net.sourceforge.phpdt.internal.compiler.parser.*;
-import net.sourceforge.phpdt.internal.compiler.util.*;
+import net.sourceforge.phpdt.internal.compiler.flow.ExceptionHandlingFlowContext;
+import net.sourceforge.phpdt.internal.compiler.flow.FlowInfo;
+import net.sourceforge.phpdt.internal.compiler.flow.InitializationFlowContext;
+import net.sourceforge.phpdt.internal.compiler.lookup.ClassScope;
+import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
+import net.sourceforge.phpdt.internal.compiler.parser.UnitParser;
+import net.sourceforge.phpdt.internal.compiler.problem.AbortMethod;
public class MethodDeclaration extends AbstractMethodDeclaration {
-
- public TypeReference returnType;
-
- /**
- * MethodDeclaration constructor comment.
- */
- public MethodDeclaration(CompilationResult compilationResult) {
- super(compilationResult);
- }
-
-
- public void parseStatements(Parser parser, CompilationUnitDeclaration unit) {
-
- //fill up the method body with statement
- if (ignoreFurtherInvestigation)
- return;
- parser.parse(this, unit);
- }
-
- public void resolveStatements(ClassScope upperScope) {
-
- // ========= abort on fatal error =============
- if (this.returnType != null && this.binding != null) {
- this.returnType.binding = this.binding.returnType;
- // record the return type binding
- }
- // look if the name of the method is correct
- if (binding != null && isTypeUseDeprecated(binding.returnType, scope))
- scope.problemReporter().deprecatedType(binding.returnType, returnType);
-
- if (CharOperation.equals(scope.enclosingSourceType().sourceName, selector))
- scope.problemReporter().methodWithConstructorName(this);
-
- // by grammatical construction, interface methods are always abstract
- if (!scope.enclosingSourceType().isInterface()){
-
- // if a method has an semicolon body and is not declared as abstract==>error
- // native methods may have a semicolon body
- if ((modifiers & AccSemicolonBody) != 0) {
- if ((modifiers & AccNative) == 0)
- if ((modifiers & AccAbstract) == 0)
- scope.problemReporter().methodNeedingAbstractModifier(this);
- } else {
- // the method HAS a body --> abstract native modifiers are forbiden
- if (((modifiers & AccNative) != 0) || ((modifiers & AccAbstract) != 0))
- scope.problemReporter().methodNeedingNoBody(this);
- }
- }
- super.resolveStatements(upperScope);
- }
-
- public String returnTypeToString(int tab) {
-
- if (returnType == null)
- return ""; //$NON-NLS-1$
- return returnType.toString(tab) + " "; //$NON-NLS-1$
- }
-
- public void traverse(
- IAbstractSyntaxTreeVisitor visitor,
- ClassScope classScope) {
-
- if (visitor.visit(this, classScope)) {
- if (returnType != null)
- returnType.traverse(visitor, scope);
- if (arguments != null) {
- int argumentLength = arguments.length;
- for (int i = 0; i < argumentLength; i++)
- arguments[i].traverse(visitor, scope);
- }
- if (thrownExceptions != null) {
- int thrownExceptionsLength = thrownExceptions.length;
- for (int i = 0; i < thrownExceptionsLength; i++)
- thrownExceptions[i].traverse(visitor, scope);
- }
- if (statements != null) {
- int statementsLength = statements.length;
- for (int i = 0; i < statementsLength; i++)
- statements[i].traverse(visitor, scope);
- }
- }
- visitor.endVisit(this, classScope);
- }
-}
\ No newline at end of file
+
+ public TypeReference returnType;
+ public static final int FUNCTION_DEFINITION = 1;
+ public static final int METHOD_DEFINITION = 2;
+ public int type;
+
+ /**
+ * MethodDeclaration constructor comment.
+ */
+ public MethodDeclaration(CompilationResult compilationResult) {
+ super(compilationResult);
+ }
+
+ public void analyseCode(ClassScope classScope, InitializationFlowContext initializationContext, FlowInfo flowInfo) {
+
+ // starting of the code analysis for methods
+ if (ignoreFurtherInvestigation)
+ return;
+ try {
+ if (binding == null)
+ return;
+
+ if (this.binding.isPrivate() && !this.binding.isPrivateUsed()) {
+ if (!classScope.referenceCompilationUnit().compilationResult.hasSyntaxError()) {
+ scope.problemReporter().unusedPrivateMethod(this);
+ }
+ }
+
+ // may be in a non necessary <clinit> for innerclass with static final constant fields
+ if (binding.isAbstract()) // || binding.isNative())
+ return;
+
+ ExceptionHandlingFlowContext methodContext =
+ new ExceptionHandlingFlowContext(initializationContext, this, binding.thrownExceptions, scope, FlowInfo.DEAD_END);
+
+ // propagate to statements
+ if (statements != null) {
+ boolean didAlreadyComplain = false;
+ for (int i = 0, count = statements.length; i < count; i++) {
+ Statement stat;
+ if (!flowInfo.complainIfUnreachable((stat = statements[i]), scope, didAlreadyComplain)) {
+ flowInfo = stat.analyseCode(scope, methodContext, flowInfo);
+ } else {
+ didAlreadyComplain = true;
+ }
+ }
+ }
+ // check for missing returning path
+ TypeBinding returnType = binding.returnType;
+ if ((returnType == VoidBinding) || isAbstract()) {
+ this.needFreeReturn = flowInfo.isReachable();
+ } else {
+ if (flowInfo != FlowInfo.DEAD_END) {
+ scope.problemReporter().shouldReturn(returnType, this);
+ }
+ }
+ } catch (AbortMethod e) {
+ this.ignoreFurtherInvestigation = true;
+ }
+ }
+
+ public void parseStatements(UnitParser parser, CompilationUnitDeclaration unit) {
+
+ //fill up the method body with statement
+ if (ignoreFurtherInvestigation)
+ return;
+ parser.parse(this, unit);
+ }
+
+ public void resolveStatements() {
+
+ // ========= abort on fatal error =============
+ if (this.returnType != null && this.binding != null) {
+ this.returnType.resolvedType = this.binding.returnType;
+ // record the return type binding
+ }
+ // look if the name of the method is correct
+ if (binding != null && isTypeUseDeprecated(binding.returnType, scope))
+ scope.problemReporter().deprecatedType(binding.returnType, returnType);
+
+ if (scope != null) {
+ if (CharOperation.equals(scope.enclosingSourceType().sourceName, selector))
+ scope.problemReporter().methodWithConstructorName(this);
+
+ // by grammatical construction, interface methods are always abstract
+ if (!scope.enclosingSourceType().isInterface()) {
+
+ // if a method has an semicolon body and is not declared as abstract==>error
+ // native methods may have a semicolon body
+ // if ((modifiers & AccSemicolonBody) != 0) {
+ // if ((modifiers & AccNative) == 0)
+ // if ((modifiers & AccAbstract) == 0)
+ // scope.problemReporter().methodNeedingAbstractModifier(this);
+ // } else {
+ // // the method HAS a body --> abstract native modifiers are forbiden
+ // if (((modifiers & AccNative) != 0) || ((modifiers & AccAbstract) != 0))
+ // scope.problemReporter().methodNeedingNoBody(this);
+ // }
+ }
+ }
+ super.resolveStatements();
+ }
+
+ public String returnTypeToString(int tab) {
+
+ if (returnType == null)
+ return ""; //$NON-NLS-1$
+ return returnType.toString(tab) + " "; //$NON-NLS-1$
+ }
+
+ public void traverse(ASTVisitor visitor, ClassScope classScope) {
+
+ if (visitor.visit(this, classScope)) {
+ if (returnType != null)
+ returnType.traverse(visitor, scope);
+ if (arguments != null) {
+ int argumentLength = arguments.length;
+ for (int i = 0; i < argumentLength; i++)
+ arguments[i].traverse(visitor, scope);
+ }
+ if (thrownExceptions != null) {
+ int thrownExceptionsLength = thrownExceptions.length;
+ for (int i = 0; i < thrownExceptionsLength; i++)
+ thrownExceptions[i].traverse(visitor, scope);
+ }
+ if (statements != null) {
+ int statementsLength = statements.length;
+ for (int i = 0; i < statementsLength; i++)
+ statements[i].traverse(visitor, scope);
+ }
+ }
+ visitor.endVisit(this, classScope);
+ }
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff