--- /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.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.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
+ 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....
+ 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){
+ this.compilationResult = compilationResult;
+ }
+
+ /*
+ * We cause the compilation task to abort to a given extent.
+ */
+ public void abort(int abortLevel) {
+
+ if (scope == null) {
+ throw new AbortCompilation(); // cannot do better
+ }
+
+ 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);
+ }
+ }
+
+ 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();
+
+ int length = arguments.length;
+ for (int i = 0; i < length; 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.
+ */
+ public void bindThrownExceptions() {
+
+ if (this.thrownExceptions != null
+ && this.binding != null
+ && this.binding.thrownExceptions != null) {
+ int thrownExceptionLength = this.thrownExceptions.length;
+ int length = this.binding.thrownExceptions.length;
+ 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.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;
+ }
+
+ public boolean isAbstract() {
+
+ if (binding != null)
+ return binding.isAbstract();
+ return (modifiers & AccAbstract) != 0;
+ }
+
+ public boolean isClinit() {
+
+ return false;
+ }
+
+ public boolean isConstructor() {
+
+ return false;
+ }
+
+ public boolean isDefaultConstructor() {
+
+ return false;
+ }
+
+ public boolean isInitializationMethod() {
+
+ return false;
+ }
+
+// public boolean isNative() {
+//
+// if (binding != null)
+// return binding.isNative();
+// return (modifiers & AccNative) != 0;
+// }
+
+ public boolean isStatic() {
+
+ if (binding != null)
+ return binding.isStatic();
+ return (modifiers & AccStatic) != 0;
+ }
+
+ /**
+ * Fill up the method body with statement
+ */
+ 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) {
+
+ if (binding == null) {
+ ignoreFurtherInvestigation = true;
+ }
+
+ try {
+ bindArguments();
+ bindThrownExceptions();
+ resolveStatements();
+ } catch (AbortMethod e) { // ========= abort on fatal error =============
+ this.ignoreFurtherInvestigation = true;
+ }
+ }
+
+ public void resolveStatements() {
+
+ if (statements != null) {
+ int i = 0, length = statements.length;
+ while (i < length)
+ statements[i++].resolve(scope);
+ }
+ }
+
+ public String returnTypeToString(int tab) {
+
+ return ""; //$NON-NLS-1$
+ }
+
+ public void tagAsHavingErrors() {
+
+ ignoreFurtherInvestigation = true;
+ }
+
+ public String toString(int tab) {
+
+ String s = tabString(tab);
+ if (modifiers != AccDefault) {
+ s += modifiersString(modifiers);
+ }
+
+ s += returnTypeToString(0);
+ s += new String(selector) + "("; //$NON-NLS-1$
+ if (arguments != null) {
+ for (int i = 0; i < arguments.length; i++) {
+ s += arguments[i].toString(0);
+ if (i != (arguments.length - 1))
+ s = s + ", "; //$NON-NLS-1$
+ };
+ };
+ s += ")"; //$NON-NLS-1$
+ if (thrownExceptions != null) {
+ s += " throws "; //$NON-NLS-1$
+ for (int i = 0; i < thrownExceptions.length; i++) {
+ s += thrownExceptions[i].toString(0);
+ if (i != (thrownExceptions.length - 1))
+ s = s + ", "; //$NON-NLS-1$
+ };
+ };
+
+ s += toStringStatements(tab + 1);
+ return s;
+ }
+
+ public String toStringStatements(int tab) {
+
+ if (isAbstract() || (this.modifiers & AccSemicolonBody) != 0)
+ return ";"; //$NON-NLS-1$
+
+ String s = " {"; //$NON-NLS-1$
+ if (statements != null) {
+ for (int i = 0; i < statements.length; i++) {
+ s = s + "\n" + statements[i].toString(tab); //$NON-NLS-1$
+ if (!(statements[i] instanceof Block)) {
+ s += ";"; //$NON-NLS-1$
+ }
+ }
+ }
+ s += "\n" + tabString(tab == 0 ? 0 : tab - 1) + "}"; //$NON-NLS-2$ //$NON-NLS-1$
+ return s;
+ }
+
+ public void traverse(
+ ASTVisitor visitor,
+ ClassScope classScope) {
+ }
+}
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