package org.eclipse.jdt.internal.compiler.ast;
import org.eclipse.jdt.internal.compiler.ASTVisitor;
import org.eclipse.jdt.internal.compiler.codegen.*;
import org.eclipse.jdt.internal.compiler.flow.*;
import org.eclipse.jdt.internal.compiler.impl.Constant;
import org.eclipse.jdt.internal.compiler.lookup.*;
public class QualifiedThisReference extends ThisReference {
public TypeReference qualification;
ReferenceBinding currentCompatibleType;
public QualifiedThisReference(TypeReference name, int sourceStart, int sourceEnd) {
super(sourceStart, sourceEnd);
this.qualification = name;
name.bits |= IgnoreRawTypeCheck;
this.sourceStart = name.sourceStart;
}
@Override
public FlowInfo analyseCode(
BlockScope currentScope,
FlowContext flowContext,
FlowInfo flowInfo) {
return flowInfo;
}
@Override
public FlowInfo analyseCode(
BlockScope currentScope,
FlowContext flowContext,
FlowInfo flowInfo,
boolean valueRequired) {
return flowInfo;
}
@Override
public void generateCode(
BlockScope currentScope,
CodeStream codeStream,
boolean valueRequired) {
int pc = codeStream.position;
if (valueRequired) {
if ((this.bits & DepthMASK) != 0) {
Object[] emulationPath =
currentScope.getEmulationPath(this.currentCompatibleType, true , false);
codeStream.generateOuterAccess(emulationPath, this, this.currentCompatibleType, currentScope);
} else {
codeStream.aload_0();
}
}
codeStream.recordPositionsFrom(pc, this.sourceStart);
}
@Override
public TypeBinding resolveType(BlockScope scope) {
this.constant = Constant.NotAConstant;
TypeBinding type = this.qualification.resolveType(scope, true );
if (type == null || !type.isValidBinding()) return null;
type = type.erasure();
if (type instanceof ReferenceBinding) {
this.resolvedType = scope.environment().convertToParameterizedType((ReferenceBinding) type);
} else {
this.resolvedType = type;
}
int depth = findCompatibleEnclosing(scope.referenceType().binding, type, scope);
this.bits &= ~DepthMASK;
this.bits |= (depth & 0xFF) << DepthSHIFT;
if (this.currentCompatibleType == null) {
if (this.resolvedType.isValidBinding())
scope.problemReporter().noSuchEnclosingInstance(type, this, false);
return this.resolvedType;
} else {
scope.tagAsAccessingEnclosingInstanceStateOf(this.currentCompatibleType, false );
}
if (depth == 0) {
checkAccess(scope, null);
}
MethodScope methodScope = scope.namedMethodScope();
if (methodScope != null) {
MethodBinding method = methodScope.referenceMethodBinding();
if (method != null) {
TypeBinding receiver = method.receiver;
while (receiver != null) {
if (TypeBinding.equalsEquals(receiver, this.resolvedType))
return this.resolvedType = receiver;
receiver = receiver.enclosingType();
}
}
}
return this.resolvedType;
}
int findCompatibleEnclosing(ReferenceBinding enclosingType, TypeBinding type, BlockScope scope) {
int depth = 0;
this.currentCompatibleType = enclosingType;
while (this.currentCompatibleType != null && TypeBinding.notEquals(this.currentCompatibleType, type)) {
depth++;
this.currentCompatibleType = this.currentCompatibleType.isStatic() ? null : this.currentCompatibleType.enclosingType();
}
return depth;
}
@Override
public StringBuffer printExpression(int indent, StringBuffer output) {
return this.qualification.print(0, output).append(".this");
}
@Override
public void traverse(
ASTVisitor visitor,
BlockScope blockScope) {
if (visitor.visit(this, blockScope)) {
this.qualification.traverse(visitor, blockScope);
}
visitor.endVisit(this, blockScope);
}
@Override
public void traverse(
ASTVisitor visitor,
ClassScope blockScope) {
if (visitor.visit(this, blockScope)) {
this.qualification.traverse(visitor, blockScope);
}
visitor.endVisit(this, blockScope);
}
}