/*******************************************************************************
- * 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.*;
-import net.sourceforge.phpdt.internal.compiler.*;
-import net.sourceforge.phpdt.internal.compiler.impl.*;
-import net.sourceforge.phpdt.internal.compiler.codegen.*;
-import net.sourceforge.phpdt.internal.compiler.flow.*;
-import net.sourceforge.phpdt.internal.compiler.lookup.*;
-import net.sourceforge.phpdt.internal.compiler.problem.*;
-import net.sourceforge.phpdt.internal.compiler.parser.*;
+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.flow.FlowInfo;
+import net.sourceforge.phpdt.internal.compiler.flow.InitializationFlowContext;
+import net.sourceforge.phpdt.internal.compiler.impl.ReferenceContext;
+import net.sourceforge.phpdt.internal.compiler.lookup.ClassScope;
+import net.sourceforge.phpdt.internal.compiler.lookup.MethodBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.MethodScope;
+import net.sourceforge.phpdt.internal.compiler.lookup.ReferenceBinding;
+import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
+import net.sourceforge.phpdt.internal.compiler.parser.UnitParser;
+import net.sourceforge.phpdt.internal.compiler.problem.AbortCompilation;
+import net.sourceforge.phpdt.internal.compiler.problem.AbortCompilationUnit;
+import net.sourceforge.phpdt.internal.compiler.problem.AbortMethod;
+import net.sourceforge.phpdt.internal.compiler.problem.AbortType;
+import net.sourceforge.phpdt.internal.compiler.problem.ProblemSeverities;
+
public abstract class AbstractMethodDeclaration
- extends AstNode
+ extends ASTNode
implements ProblemSeverities, ReferenceContext {
public MethodScope scope;
public MethodBinding binding;
public boolean ignoreFurtherInvestigation = false;
public boolean needFreeReturn = false;
-
+
public int bodyStart;
public int bodyEnd = -1;
public CompilationResult compilationResult;
}
}
- public void analyseCode(
- ClassScope currentScope,
- FlowContext flowContext,
- FlowInfo flowInfo) {
+ public abstract void analyseCode(ClassScope scope, InitializationFlowContext initializationContext, FlowInfo info);
- // starting of the code analysis for methods
- if (ignoreFurtherInvestigation)
- return;
- try {
- if (binding == null)
- return;
- // may be in a non necessary <clinit> for innerclass with static final constant fields
- if (binding.isAbstract() || binding.isNative())
- return;
-
- ExceptionHandlingFlowContext methodContext =
- new ExceptionHandlingFlowContext(
- flowContext,
- this,
- binding.thrownExceptions,
- scope,
- FlowInfo.DeadEnd);
-
- // propagate to statements
- if (statements != null) {
- for (int i = 0, count = statements.length; i < count; i++) {
- Statement stat;
- if (!flowInfo.complainIfUnreachable((stat = statements[i]), scope)) {
- flowInfo = stat.analyseCode(scope, methodContext, flowInfo);
- }
- }
- }
- // check for missing returning path
- TypeBinding returnType = binding.returnType;
- if ((returnType == VoidBinding) || isAbstract()) {
- needFreeReturn =
- !((flowInfo == FlowInfo.DeadEnd) || flowInfo.isFakeReachable());
- } else {
- if (flowInfo != FlowInfo.DeadEnd) {
- // special test for empty methods that should return something
- if ((statements == null) && (returnType != VoidBinding)) {
- scope.problemReporter().shouldReturn(returnType, this);
- } else {
- scope.problemReporter().shouldReturn(
- returnType,
- statements[statements.length - 1]);
- }
- }
- }
- } catch (AbortMethod e) {
- this.ignoreFurtherInvestigation = true;
- }
- }
-
- /**
+ /**
* Bind and add argument's binding into the scope of the method
*/
public void bindArguments() {
if (arguments != null) {
// by default arguments in abstract/native methods are considered to be used (no complaint is expected)
- boolean used = binding == null || binding.isAbstract() || binding.isNative();
+ boolean used = binding == null || binding.isAbstract();// || binding.isNative();
int length = arguments.length;
for (int i = 0; i < length; i++) {
if (this.thrownExceptions != null
&& this.binding != null
&& this.binding.thrownExceptions != null) {
+ int thrownExceptionLength = this.thrownExceptions.length;
int length = this.binding.thrownExceptions.length;
- for (int i = 0; i < length; i++) {
- this.thrownExceptions[i].binding = this.binding.thrownExceptions[i];
+ if (length == thrownExceptionLength) {
+ for (int i = 0; i < length; i++) {
+ this.thrownExceptions[i].resolvedType = this.binding.thrownExceptions[i];
+ }
+ } else {
+ int bindingIndex = 0;
+ for (int i = 0; i < thrownExceptionLength && bindingIndex < length; i++) {
+ TypeReference thrownException = this.thrownExceptions[i];
+ ReferenceBinding thrownExceptionBinding = this.binding.thrownExceptions[bindingIndex];
+ char[][] bindingCompoundName = thrownExceptionBinding.compoundName;
+ if (thrownException instanceof SingleTypeReference) {
+ // single type reference
+ int lengthName = bindingCompoundName.length;
+ char[] thrownExceptionTypeName = thrownException.getTypeName()[0];
+ if (CharOperation.equals(thrownExceptionTypeName, bindingCompoundName[lengthName - 1])) {
+ thrownException.resolvedType = thrownExceptionBinding;
+ bindingIndex++;
+ }
+ } else {
+ // qualified type reference
+ if (CharOperation.equals(thrownException.getTypeName(), bindingCompoundName)) {
+ thrownException.resolvedType = thrownExceptionBinding;
+ bindingIndex++;
+ }
+ }
+ }
}
}
}
/**
* Bytecode generation for a method
*/
- public void generateCode(ClassScope classScope, ClassFile classFile) {
-
- int problemResetPC = 0;
- classFile.codeStream.wideMode = false; // reset wideMode to false
- if (ignoreFurtherInvestigation) {
- // method is known to have errors, dump a problem method
- if (this.binding == null)
- return; // handle methods with invalid signature or duplicates
- int problemsLength;
- IProblem[] problems =
- scope.referenceCompilationUnit().compilationResult.getProblems();
- IProblem[] problemsCopy = new IProblem[problemsLength = problems.length];
- System.arraycopy(problems, 0, problemsCopy, 0, problemsLength);
- classFile.addProblemMethod(this, binding, problemsCopy);
- return;
- }
- // regular code generation
- try {
- problemResetPC = classFile.contentsOffset;
- this.generateCode(classFile);
- } catch (AbortMethod e) {
- // a fatal error was detected during code generation, need to restart code gen if possible
- if (e.compilationResult == CodeStream.RESTART_IN_WIDE_MODE) {
- // a branch target required a goto_w, restart code gen in wide mode.
- try {
- this.traverse(new ResetStateForCodeGenerationVisitor(), classScope);
- classFile.contentsOffset = problemResetPC;
- classFile.methodCount--;
- classFile.codeStream.wideMode = true; // request wide mode
- this.generateCode(classFile); // restart method generation
- } catch (AbortMethod e2) {
- int problemsLength;
- IProblem[] problems =
- scope.referenceCompilationUnit().compilationResult.getProblems();
- IProblem[] problemsCopy = new IProblem[problemsLength = problems.length];
- System.arraycopy(problems, 0, problemsCopy, 0, problemsLength);
- classFile.addProblemMethod(this, binding, problemsCopy, problemResetPC);
- }
- } else {
- // produce a problem method accounting for this fatal error
- int problemsLength;
- IProblem[] problems =
- scope.referenceCompilationUnit().compilationResult.getProblems();
- IProblem[] problemsCopy = new IProblem[problemsLength = problems.length];
- System.arraycopy(problems, 0, problemsCopy, 0, problemsLength);
- classFile.addProblemMethod(this, binding, problemsCopy, problemResetPC);
- }
- }
- }
-
- private void generateCode(ClassFile classFile) {
-
- classFile.generateMethodInfoHeader(binding);
- int methodAttributeOffset = classFile.contentsOffset;
- int attributeNumber = classFile.generateMethodInfoAttribute(binding);
- if ((!binding.isNative()) && (!binding.isAbstract())) {
- int codeAttributeOffset = classFile.contentsOffset;
- classFile.generateCodeAttributeHeader();
- CodeStream codeStream = classFile.codeStream;
- codeStream.reset(this, classFile);
- // initialize local positions
- scope.computeLocalVariablePositions(binding.isStatic() ? 0 : 1, codeStream);
-
- // arguments initialization for local variable debug attributes
- if (arguments != null) {
- for (int i = 0, max = arguments.length; i < max; i++) {
- LocalVariableBinding argBinding;
- codeStream.addVisibleLocalVariable(argBinding = arguments[i].binding);
- argBinding.recordInitializationStartPC(0);
- }
- }
- if (statements != null) {
- for (int i = 0, max = statements.length; i < max; i++)
- statements[i].generateCode(scope, codeStream);
- }
- if (needFreeReturn) {
- codeStream.return_();
- }
- // local variable attributes
- codeStream.exitUserScope(scope);
- codeStream.recordPositionsFrom(0, this.bodyEnd);
- classFile.completeCodeAttribute(codeAttributeOffset);
- attributeNumber++;
- }
- classFile.completeMethodInfo(methodAttributeOffset, attributeNumber);
-
- // if a problem got reported during code gen, then trigger problem method creation
- if (ignoreFurtherInvestigation) {
- throw new AbortMethod(scope.referenceCompilationUnit().compilationResult);
- }
- }
-
+// public void generateCode(ClassScope classScope, ClassFile classFile) {
+//
+// int problemResetPC = 0;
+// classFile.codeStream.wideMode = false; // reset wideMode to false
+// if (ignoreFurtherInvestigation) {
+// // method is known to have errors, dump a problem method
+// if (this.binding == null)
+// return; // handle methods with invalid signature or duplicates
+// int problemsLength;
+// IProblem[] problems =
+// scope.referenceCompilationUnit().compilationResult.getProblems();
+// IProblem[] problemsCopy = new IProblem[problemsLength = problems.length];
+// System.arraycopy(problems, 0, problemsCopy, 0, problemsLength);
+// classFile.addProblemMethod(this, binding, problemsCopy);
+// return;
+// }
+// // regular code generation
+// try {
+// problemResetPC = classFile.contentsOffset;
+// this.generateCode(classFile);
+// } catch (AbortMethod e) {
+// // a fatal error was detected during code generation, need to restart code gen if possible
+// if (e.compilationResult == CodeStream.RESTART_IN_WIDE_MODE) {
+// // a branch target required a goto_w, restart code gen in wide mode.
+// try {
+// this.traverse(new ResetStateForCodeGenerationVisitor(), classScope);
+// classFile.contentsOffset = problemResetPC;
+// classFile.methodCount--;
+// classFile.codeStream.wideMode = true; // request wide mode
+// this.generateCode(classFile); // restart method generation
+// } catch (AbortMethod e2) {
+// int problemsLength;
+// IProblem[] problems =
+// scope.referenceCompilationUnit().compilationResult.getAllProblems();
+// IProblem[] problemsCopy = new IProblem[problemsLength = problems.length];
+// System.arraycopy(problems, 0, problemsCopy, 0, problemsLength);
+// classFile.addProblemMethod(this, binding, problemsCopy, problemResetPC);
+// }
+// } else {
+// // produce a problem method accounting for this fatal error
+// int problemsLength;
+// IProblem[] problems =
+// scope.referenceCompilationUnit().compilationResult.getAllProblems();
+// IProblem[] problemsCopy = new IProblem[problemsLength = problems.length];
+// System.arraycopy(problems, 0, problemsCopy, 0, problemsLength);
+// classFile.addProblemMethod(this, binding, problemsCopy, problemResetPC);
+// }
+// }
+// }
+//
+// private void generateCode(ClassFile classFile) {
+//
+// classFile.generateMethodInfoHeader(binding);
+// int methodAttributeOffset = classFile.contentsOffset;
+// int attributeNumber = classFile.generateMethodInfoAttribute(binding);
+// if ((!binding.isNative()) && (!binding.isAbstract())) {
+// int codeAttributeOffset = classFile.contentsOffset;
+// classFile.generateCodeAttributeHeader();
+// CodeStream codeStream = classFile.codeStream;
+// codeStream.reset(this, classFile);
+// // initialize local positions
+// this.scope.computeLocalVariablePositions(binding.isStatic() ? 0 : 1, codeStream);
+//
+// // arguments initialization for local variable debug attributes
+// if (arguments != null) {
+// for (int i = 0, max = arguments.length; i < max; i++) {
+// LocalVariableBinding argBinding;
+// codeStream.addVisibleLocalVariable(argBinding = arguments[i].binding);
+// argBinding.recordInitializationStartPC(0);
+// }
+// }
+// if (statements != null) {
+// for (int i = 0, max = statements.length; i < max; i++)
+// statements[i].generateCode(scope, codeStream);
+// }
+// if (this.needFreeReturn) {
+// codeStream.return_();
+// }
+// // local variable attributes
+// codeStream.exitUserScope(scope);
+// codeStream.recordPositionsFrom(0, this.declarationSourceEnd);
+// classFile.completeCodeAttribute(codeAttributeOffset);
+// attributeNumber++;
+// } else {
+// checkArgumentsSize();
+// }
+// classFile.completeMethodInfo(methodAttributeOffset, attributeNumber);
+//
+// // if a problem got reported during code gen, then trigger problem method creation
+// if (ignoreFurtherInvestigation) {
+// throw new AbortMethod(scope.referenceCompilationUnit().compilationResult);
+// }
+// }
+
+// private void checkArgumentsSize() {
+// TypeBinding[] parameters = binding.parameters;
+// int size = 1; // an abstact method or a native method cannot be static
+// for (int i = 0, max = parameters.length; i < max; i++) {
+// TypeBinding parameter = parameters[i];
+// if (parameter == LongBinding || parameter == DoubleBinding) {
+// size += 2;
+// } else {
+// size++;
+// }
+// if (size > 0xFF) {
+// scope.problemReporter().noMoreAvailableSpaceForArgument(scope.locals[i], scope.locals[i].declaration);
+// }
+// }
+// }
+
public boolean hasErrors() {
return this.ignoreFurtherInvestigation;
}
return false;
}
- public boolean isNative() {
-
- if (binding != null)
- return binding.isNative();
- return (modifiers & AccNative) != 0;
- }
+// public boolean isNative() {
+//
+// if (binding != null)
+// return binding.isNative();
+// return (modifiers & AccNative) != 0;
+// }
public boolean isStatic() {
* Fill up the method body with statement
*/
public abstract void parseStatements(
- Parser parser,
+ UnitParser parser,
CompilationUnitDeclaration unit);
+ public StringBuffer print(int tab, StringBuffer output) {
+
+ printIndent(tab, output);
+ printModifiers(this.modifiers, output);
+ printReturnType(0, output).append(this.selector).append('(');
+ if (this.arguments != null) {
+ for (int i = 0; i < this.arguments.length; i++) {
+ if (i > 0) output.append(", "); //$NON-NLS-1$
+ this.arguments[i].print(0, output);
+ }
+ }
+ output.append(')');
+ if (this.thrownExceptions != null) {
+ output.append(" throws "); //$NON-NLS-1$
+ for (int i = 0; i < this.thrownExceptions.length; i++) {
+ if (i > 0) output.append(", "); //$NON-NLS-1$
+ this.thrownExceptions[i].print(0, output);
+ }
+ }
+ printBody(tab + 1, output);
+ return output;
+ }
+
+ public StringBuffer printBody(int indent, StringBuffer output) {
+ if (isAbstract() || (this.modifiers & AccSemicolonBody) != 0)
+ return output.append(';');
+
+ output.append(" {"); //$NON-NLS-1$
+ if (this.statements != null) {
+ for (int i = 0; i < this.statements.length; i++) {
+ output.append('\n');
+ this.statements[i].printStatement(indent, output);
+ }
+ }
+ output.append('\n'); //$NON-NLS-1$
+ printIndent(indent == 0 ? 0 : indent - 1, output).append('}');
+ return output;
+ }
+
+ public StringBuffer printReturnType(int indent, StringBuffer output) {
+
+ return output;
+ }
public void resolve(ClassScope upperScope) {
if (binding == null) {
try {
bindArguments();
bindThrownExceptions();
- resolveStatements(upperScope);
+ resolveStatements();
} catch (AbortMethod e) { // ========= abort on fatal error =============
this.ignoreFurtherInvestigation = true;
}
}
- public void resolveStatements(ClassScope upperScope) {
+ public void resolveStatements() {
if (statements != null) {
int i = 0, length = statements.length;
}
public void traverse(
- IAbstractSyntaxTreeVisitor visitor,
+ ASTVisitor visitor,
ClassScope classScope) {
}
-}
\ No newline at end of file
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff