| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.jsdt.internal.compiler.ast; |
| |
| import org.eclipse.wst.jsdt.core.ast.IASTNode; |
| import org.eclipse.wst.jsdt.core.ast.IArgument; |
| import org.eclipse.wst.jsdt.internal.compiler.ASTVisitor; |
| import org.eclipse.wst.jsdt.internal.compiler.impl.Constant; |
| import org.eclipse.wst.jsdt.internal.compiler.lookup.ArrayBinding; |
| import org.eclipse.wst.jsdt.internal.compiler.lookup.Binding; |
| import org.eclipse.wst.jsdt.internal.compiler.lookup.BlockScope; |
| import org.eclipse.wst.jsdt.internal.compiler.lookup.ClassScope; |
| import org.eclipse.wst.jsdt.internal.compiler.lookup.LocalVariableBinding; |
| import org.eclipse.wst.jsdt.internal.compiler.lookup.MethodScope; |
| import org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding; |
| import org.eclipse.wst.jsdt.internal.compiler.lookup.TypeBinding; |
| import org.eclipse.wst.jsdt.internal.compiler.lookup.TypeIds; |
| |
| public class Argument extends LocalDeclaration implements IArgument { |
| |
| public char [] comment; |
| // prefix for setter method (to recognize special hiding argument) |
| // private final static char[] SET = "set".toCharArray(); //$NON-NLS-1$ |
| |
| public Argument(char[] name, long posNom, TypeReference tr, int modifiers) { |
| |
| super(name, (int) (posNom >>> 32), (int) posNom); |
| this.declarationSourceEnd = (int) posNom; |
| this.modifiers = modifiers; |
| type = tr; |
| this.bits |= IsLocalDeclarationReachable; |
| } |
| |
| public char[] getComment() { |
| return this.comment; |
| } |
| |
| public void bind(MethodScope scope, TypeBinding typeBinding, boolean used) { |
| |
| // record the resolved type into the type reference |
| |
| Binding existingVariable = scope.getLocalBinding(name, Binding.VARIABLE, this, false /*do not resolve hidden field*/); |
| if (existingVariable != null && existingVariable.isValidBinding() && existingVariable instanceof LocalVariableBinding ){ |
| LocalVariableBinding localVariableBinding=(LocalVariableBinding)existingVariable; |
| // if (existingVariable instanceof LocalVariableBinding && this.hiddenVariableDepth == 0) { |
| // scope.problemReporter().redefineArgument(this); |
| // } else { |
| // boolean isSpecialArgument = false; |
| // if (existingVariable instanceof FieldBinding) { |
| // if (scope.isInsideConstructor()) { |
| // isSpecialArgument = true; // constructor argument |
| // } else { |
| // AbstractMethodDeclaration methodDecl = scope.referenceMethod(); |
| // if (methodDecl != null && CharOperation.prefixEquals(SET, methodDecl.selector)) { |
| // isSpecialArgument = true; // setter argument |
| // } |
| // } |
| // } |
| if (localVariableBinding.declaringScope.compilationUnitScope()==scope.compilationUnitScope()) |
| scope.problemReporter().localVariableHiding(this, existingVariable, false); |
| // } |
| } |
| |
| if (this.binding == null) { |
| this.binding = new LocalVariableBinding(this, typeBinding, this.modifiers, true); |
| } |
| scope.addLocalVariable( this.binding ); |
| // if (JavaScriptCore.IS_ECMASCRIPT4) |
| // resolveAnnotations(scope, this.annotations, this.binding); |
| //true stand for argument instead of just local |
| this.binding.declaration = this; |
| this.binding.useFlag = used ? LocalVariableBinding.USED : LocalVariableBinding.UNUSED; |
| } |
| |
| /** |
| * @see org.eclipse.wst.jsdt.internal.compiler.ast.AbstractVariableDeclaration#getKind() |
| */ |
| public int getKind() { |
| return PARAMETER; |
| } |
| |
| public boolean isVarArgs() { |
| return this.type != null && (this.type.bits & IsVarArgs) != 0; |
| } |
| |
| public StringBuffer print(int indent, StringBuffer output) { |
| |
| printIndent(indent, output); |
| printModifiers(this.modifiers, output); |
| // if (this.annotations != null) printAnnotations(this.annotations, output); |
| |
| // if (type == null) { |
| // output.append("<no type> "); //$NON-NLS-1$ |
| // } else { |
| // type.print(0, output).append(' '); |
| // } |
| return output.append(this.name); |
| } |
| |
| public StringBuffer printStatement(int indent, StringBuffer output) { |
| |
| return print(indent, output).append(';'); |
| } |
| |
| public TypeBinding resolveForCatch(BlockScope scope) { |
| |
| // resolution on an argument of a catch clause |
| // provide the scope with a side effect : insertion of a LOCAL |
| // that represents the argument. The type must be from JavaThrowable |
| |
| ReferenceBinding javaLangError = scope.getJavaLangError(); |
| TypeBinding exceptionType = this.type!=null ? |
| this.type.resolveType(scope, true /* check bounds*/) : javaLangError; |
| if (exceptionType == null) return null; |
| boolean hasError = false; |
| if (exceptionType.isBoundParameterizedType()) { |
| scope.problemReporter().invalidParameterizedExceptionType(exceptionType, this); |
| hasError = true; |
| // fall thru to create the variable - avoids additional errors because the variable is missing |
| } |
| if (exceptionType.isTypeVariable()) { |
| scope.problemReporter().invalidTypeVariableAsException(exceptionType, this); |
| hasError = true; |
| // fall thru to create the variable - avoids additional errors because the variable is missing |
| } |
| if (exceptionType.isArrayType() && ((ArrayBinding) exceptionType).leafComponentType == TypeBinding.VOID) { |
| scope.problemReporter().variableTypeCannotBeVoidArray(this); |
| hasError = true; |
| // fall thru to create the variable - avoids additional errors because the variable is missing |
| } |
| if ( !(exceptionType==javaLangError) && exceptionType.findSuperTypeErasingTo(TypeIds.T_JavaLangThrowable, true) == null) { |
| scope.problemReporter().cannotThrowType(this.type, exceptionType); |
| hasError = true; |
| // fall thru to create the variable - avoids additional errors because the variable is missing |
| } |
| |
| Binding existingVariable = scope.getBinding(name, Binding.VARIABLE, this, false /*do not resolve hidden field*/); |
| if (existingVariable != null && existingVariable.isValidBinding()){ |
| // if (existingVariable instanceof LocalVariableBinding && this.hiddenVariableDepth == 0) { |
| // scope.problemReporter().redefineArgument(this); |
| // } else { |
| scope.problemReporter().localVariableHiding(this, existingVariable, false); |
| // } |
| } |
| |
| this.binding = new LocalVariableBinding(this, exceptionType, modifiers, false); // argument decl, but local var (where isArgument = false) |
| // resolveAnnotations(scope, this.annotations, this.binding); |
| |
| scope.addLocalVariable(binding); |
| binding.setConstant(Constant.NotAConstant); |
| if (hasError) return null; |
| return exceptionType; |
| } |
| |
| public void traverse(ASTVisitor visitor, BlockScope scope) { |
| |
| if (visitor.visit(this, scope)) { |
| if (this.annotations != null) { |
| int annotationsLength = this.annotations.length; |
| for (int i = 0; i < annotationsLength; i++) |
| this.annotations[i].traverse(visitor, scope); |
| } |
| if (type != null) |
| type.traverse(visitor, scope); |
| } |
| visitor.endVisit(this, scope); |
| } |
| public void traverse(ASTVisitor visitor, ClassScope scope) { |
| |
| if (visitor.visit(this, scope)) { |
| if (this.annotations != null) { |
| int annotationsLength = this.annotations.length; |
| for (int i = 0; i < annotationsLength; i++) |
| this.annotations[i].traverse(visitor, scope); |
| } |
| if (type != null) |
| type.traverse(visitor, scope); |
| } |
| visitor.endVisit(this, scope); |
| } |
| public int getASTType() { |
| return IASTNode.ARGUMENT; |
| |
| } |
| } |