/*******************************************************************************
- * 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.IProblem;
-import net.sourceforge.phpdt.internal.compiler.ClassFile;
+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.codegen.CodeStream;
-import net.sourceforge.phpdt.internal.compiler.codegen.ResetStateForCodeGenerationVisitor;
-import net.sourceforge.phpdt.internal.compiler.flow.ExceptionHandlingFlowContext;
-import net.sourceforge.phpdt.internal.compiler.flow.FlowContext;
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.LocalVariableBinding;
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.Parser;
+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
- implements ProblemSeverities, ReferenceContext {
-
+public abstract class AbstractMethodDeclaration extends ASTNode implements
+ ProblemSeverities, ReferenceContext {
+
public MethodScope scope;
- //it is not relevent for constructor but it helps to have the name of the constructor here
- //which is always the name of the class.....parsing do extra work to fill it up while it do not have to....
+
+ // it is not relevent for constructor but it helps to have the name of the
+ // constructor here
+ // which is always the name of the class.....parsing do extra work to fill
+ // it up while it do not have to....
public char[] selector;
+
public int declarationSourceStart;
+
public int declarationSourceEnd;
+
public int modifiers;
+
public int modifiersSourceStart;
+
public Argument[] arguments;
+
public TypeReference[] thrownExceptions;
+
public Statement[] statements;
+
public int explicitDeclarations;
+
public MethodBinding binding;
+
public boolean ignoreFurtherInvestigation = false;
+
public boolean needFreeReturn = false;
public int bodyStart;
+
public int bodyEnd = -1;
+
public CompilationResult compilationResult;
-
- AbstractMethodDeclaration(CompilationResult compilationResult){
+
+ AbstractMethodDeclaration(CompilationResult compilationResult) {
this.compilationResult = compilationResult;
}
-
+
/*
- * We cause the compilation task to abort to a given extent.
+ * We cause the compilation task to abort to a given extent.
*/
public void abort(int abortLevel) {
throw new AbortCompilation(); // cannot do better
}
- CompilationResult compilationResult =
- scope.referenceCompilationUnit().compilationResult;
+ CompilationResult compilationResult = scope.referenceCompilationUnit().compilationResult;
switch (abortLevel) {
- case AbortCompilation :
- throw new AbortCompilation(compilationResult);
- case AbortCompilationUnit :
- throw new AbortCompilationUnit(compilationResult);
- case AbortType :
- throw new AbortType(compilationResult);
- default :
- throw new AbortMethod(compilationResult);
+ case AbortCompilation:
+ throw new AbortCompilation(compilationResult);
+ case AbortCompilationUnit:
+ throw new AbortCompilationUnit(compilationResult);
+ case AbortType:
+ throw new AbortType(compilationResult);
+ default:
+ throw new AbortMethod(compilationResult);
}
}
- public void analyseCode(
- ClassScope currentScope,
- FlowContext flowContext,
- FlowInfo flowInfo) {
-
- // 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;
- }
- }
+ public abstract void analyseCode(ClassScope scope,
+ InitializationFlowContext initializationContext, FlowInfo info);
/**
* 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();
+ // by default arguments in abstract/native methods are considered to
+ // be used (no complaint is expected)
+ boolean used = binding == null || binding.isAbstract();// ||
+ // binding.isNative();
int length = arguments.length;
for (int i = 0; i < length; i++) {
- TypeBinding argType = binding == null ? null : binding.parameters[i];
+ TypeBinding argType = binding == null ? null
+ : binding.parameters[i];
arguments[i].bind(scope, argType, used);
}
}
}
/**
- * Record the thrown exception type bindings in the corresponding type references.
+ * Record the thrown exception type bindings in the corresponding type
+ * references.
*/
public void bindThrownExceptions() {
- if (this.thrownExceptions != null
- && this.binding != null
- && this.binding.thrownExceptions != null) {
+ 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++;
+ }
+ }
+ }
}
}
}
public CompilationResult compilationResult() {
-
+
return this.compilationResult;
}
-
+
/**
* 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,
- CompilationUnitDeclaration unit);
+ public abstract void parseStatements(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) {
}
try {
- bindArguments();
+ bindArguments();
bindThrownExceptions();
- resolveStatements(upperScope);
- } catch (AbortMethod e) { // ========= abort on fatal error =============
+ 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;
s += arguments[i].toString(0);
if (i != (arguments.length - 1))
s = s + ", "; //$NON-NLS-1$
- };
- };
+ }
+ ;
+ }
+ ;
s += ")"; //$NON-NLS-1$
if (thrownExceptions != null) {
s += " throws "; //$NON-NLS-1$
s += thrownExceptions[i].toString(0);
if (i != (thrownExceptions.length - 1))
s = s + ", "; //$NON-NLS-1$
- };
- };
+ }
+ ;
+ }
+ ;
s += toStringStatements(tab + 1);
return s;
return s;
}
- public void traverse(
- IAbstractSyntaxTreeVisitor visitor,
- ClassScope classScope) {
+ public void traverse(ASTVisitor visitor, ClassScope classScope) {
}
-}
\ No newline at end of file
+}
git://secure.phpeclipse.com / phpeclipse.git / blobdiff