| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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 org.eclipse.jdt.internal.compiler.ast; |
| |
| import org.eclipse.jdt.internal.compiler.ASTVisitor; |
| import org.eclipse.jdt.internal.compiler.flow.FlowContext; |
| import org.eclipse.jdt.internal.compiler.flow.FlowInfo; |
| import org.eclipse.jdt.internal.compiler.lookup.*; |
| |
| public abstract class TypeReference extends Expression { |
| |
| public TypeReference() { |
| super () ; |
| } |
| |
| public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) { |
| return flowInfo; |
| } |
| |
| // allows us to trap completion & selection nodes |
| public void aboutToResolve(Scope scope) { |
| // default implementation: do nothing |
| } |
| /* |
| * Answer a base type reference (can be an array of base type). |
| */ |
| public static final TypeReference baseTypeReference(int baseType, int dim) { |
| |
| if (dim == 0) { |
| switch (baseType) { |
| case (T_void) : |
| return new SingleTypeReference(VoidBinding.simpleName, 0); |
| case (T_boolean) : |
| return new SingleTypeReference(BooleanBinding.simpleName, 0); |
| case (T_char) : |
| return new SingleTypeReference(CharBinding.simpleName, 0); |
| case (T_float) : |
| return new SingleTypeReference(FloatBinding.simpleName, 0); |
| case (T_double) : |
| return new SingleTypeReference(DoubleBinding.simpleName, 0); |
| case (T_byte) : |
| return new SingleTypeReference(ByteBinding.simpleName, 0); |
| case (T_short) : |
| return new SingleTypeReference(ShortBinding.simpleName, 0); |
| case (T_int) : |
| return new SingleTypeReference(IntBinding.simpleName, 0); |
| default : //T_long |
| return new SingleTypeReference(LongBinding.simpleName, 0); |
| } |
| } |
| switch (baseType) { |
| case (T_void) : |
| return new ArrayTypeReference(VoidBinding.simpleName, dim, 0); |
| case (T_boolean) : |
| return new ArrayTypeReference(BooleanBinding.simpleName, dim, 0); |
| case (T_char) : |
| return new ArrayTypeReference(CharBinding.simpleName, dim, 0); |
| case (T_float) : |
| return new ArrayTypeReference(FloatBinding.simpleName, dim, 0); |
| case (T_double) : |
| return new ArrayTypeReference(DoubleBinding.simpleName, dim, 0); |
| case (T_byte) : |
| return new ArrayTypeReference(ByteBinding.simpleName, dim, 0); |
| case (T_short) : |
| return new ArrayTypeReference(ShortBinding.simpleName, dim, 0); |
| case (T_int) : |
| return new ArrayTypeReference(IntBinding.simpleName, dim, 0); |
| default : //T_long |
| return new ArrayTypeReference(LongBinding.simpleName, dim, 0); |
| } |
| } |
| public void checkBounds(Scope scope) { |
| // only parameterized type references have bounds |
| } |
| public abstract TypeReference copyDims(int dim); |
| public int dimensions() { |
| return 0; |
| } |
| /** |
| * @return char[][] |
| * TODO (jerome) should merge back into #getTypeName() |
| */ |
| public char [][] getParameterizedTypeName(){ |
| return getTypeName(); |
| } |
| protected abstract TypeBinding getTypeBinding(Scope scope); |
| /** |
| * @return char[][] |
| */ |
| public abstract char [][] getTypeName() ; |
| public boolean isTypeReference() { |
| return true; |
| } |
| public TypeBinding resolveSuperType(ClassScope scope) { |
| // assumes the implementation of resolveType(ClassScope) will call back to detect cycles |
| if (resolveType(scope) == null) return null; |
| |
| if (this.resolvedType.isTypeVariable()) { |
| this.resolvedType = new ProblemReferenceBinding(getTypeName(), (ReferenceBinding) this.resolvedType, ProblemReasons.IllegalSuperTypeVariable); |
| reportInvalidType(scope); |
| return null; |
| } |
| return this.resolvedType; |
| } |
| public TypeBinding resolveType(BlockScope blockScope) { |
| // handle the error here |
| this.constant = NotAConstant; |
| if (this.resolvedType != null) // is a shared type reference which was already resolved |
| return this.resolvedType.isValidBinding() ? this.resolvedType : null; // already reported error |
| |
| this.resolvedType = getTypeBinding(blockScope); |
| if (this.resolvedType == null) |
| return null; // detected cycle while resolving hierarchy |
| if (!this.resolvedType.isValidBinding()) { |
| reportInvalidType(blockScope); |
| return null; |
| } |
| if (isTypeUseDeprecated(this.resolvedType, blockScope)) |
| reportDeprecatedType(blockScope); |
| return this.resolvedType = blockScope.convertToRawType(this.resolvedType); |
| } |
| public TypeBinding resolveType(ClassScope classScope) { |
| // handle the error here |
| this.constant = NotAConstant; |
| if (this.resolvedType != null) // is a shared type reference which was already resolved |
| return this.resolvedType.isValidBinding() ? this.resolvedType : null; // already reported error |
| |
| this.resolvedType = getTypeBinding(classScope); |
| if (this.resolvedType == null) |
| return null; // detected cycle while resolving hierarchy |
| if (!this.resolvedType.isValidBinding()) { |
| reportInvalidType(classScope); |
| return null; |
| } |
| if (isTypeUseDeprecated(this.resolvedType, classScope)) |
| reportDeprecatedType(classScope); |
| return this.resolvedType = classScope.convertToRawType(this.resolvedType); |
| } |
| |
| public TypeBinding resolveTypeArgument(BlockScope blockScope, ReferenceBinding genericType, int rank) { |
| return resolveType(blockScope); |
| } |
| |
| public TypeBinding resolveTypeArgument(ClassScope classScope, ReferenceBinding genericType, int rank) { |
| return resolveType(classScope); |
| } |
| |
| protected void reportInvalidType(Scope scope) { |
| scope.problemReporter().invalidType(this, this.resolvedType); |
| } |
| protected void reportDeprecatedType(Scope scope) { |
| scope.problemReporter().deprecatedType(this.resolvedType, this); |
| } |
| public abstract void traverse(ASTVisitor visitor, ClassScope classScope); |
| public abstract void traverse(ASTVisitor visitor, BlockScope classScope); |
| } |