/******************************************************************************* | |
* 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); | |
} |