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/*******************************************************************************
* 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.wst.jsdt.internal.compiler.ast;
import org.eclipse.wst.jsdt.internal.compiler.ASTVisitor;
import org.eclipse.wst.jsdt.internal.compiler.flow.FlowContext;
import org.eclipse.wst.jsdt.internal.compiler.flow.FlowInfo;
import org.eclipse.wst.jsdt.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);
}