package org.eclipse.jdt.internal.compiler.ast; | |
/* | |
* (c) Copyright IBM Corp. 2000, 2001. | |
* All Rights Reserved. | |
*/ | |
import org.eclipse.jdt.internal.compiler.IAbstractSyntaxTreeVisitor; | |
import org.eclipse.jdt.internal.compiler.impl.*; | |
import org.eclipse.jdt.internal.compiler.codegen.*; | |
import org.eclipse.jdt.internal.compiler.flow.*; | |
import org.eclipse.jdt.internal.compiler.lookup.*; | |
public class ClassLiteralAccess extends Expression { | |
public TypeReference type; | |
public TypeBinding targetType; | |
FieldBinding syntheticField; | |
public ClassLiteralAccess(int pos, TypeReference t) { | |
type = t; | |
sourceEnd = (sourceStart = pos)+4 ; // "class" length - 1 | |
} | |
public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) { | |
// if reachable, request the addition of a synthetic field for caching the class descriptor | |
SourceTypeBinding sourceType = currentScope.outerMostMethodScope().enclosingSourceType(); | |
if (!(sourceType.isInterface() // no field generated in interface case (would'nt verify) see 1FHHEZL | |
|| sourceType.isBaseType())){ | |
syntheticField = sourceType.addSyntheticField(targetType, currentScope); | |
} | |
return flowInfo; | |
} | |
/** | |
* MessageSendDotClass code generation | |
* | |
* @param currentScope org.eclipse.jdt.internal.compiler.lookup.BlockScope | |
* @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream | |
* @param valueRequired boolean | |
*/ | |
public void generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired) { | |
int pc = codeStream.position; | |
// in interface case, no caching occurs, since cannot make a cache field for interface | |
if (valueRequired) | |
codeStream.generateClassLiteralAccessForType(type.binding, syntheticField); | |
codeStream.recordPositionsFrom(pc, this); | |
} | |
public TypeBinding resolveType(BlockScope scope) { | |
constant = NotAConstant; | |
if ((targetType = type.resolveType(scope)) == null) | |
return null; | |
if (targetType.isArrayType() && ((ArrayBinding) targetType).leafComponentType == VoidBinding) { | |
scope.problemReporter().cannotAllocateVoidArray(this); | |
return null; | |
} | |
return scope.getJavaLangClass(); | |
} | |
public String toStringExpression(){ | |
/*slow code*/ | |
String s = ""/*nonNLS*/; | |
s = s + type.toString(0) + ".class"/*nonNLS*/ ; | |
return s;} | |
public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope blockScope) { | |
if (visitor.visit(this, blockScope)) { | |
type.traverse(visitor, blockScope); | |
} | |
visitor.endVisit(this, blockScope); | |
} | |
} |