/******************************************************************************* | |
* 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.lookup; | |
import java.util.HashMap; | |
import java.util.Hashtable; | |
import java.util.Iterator; | |
import org.eclipse.wst.jsdt.core.compiler.CharOperation; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.AbstractMethodDeclaration; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.AnnotationTypeMemberDeclaration; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.Argument; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.AssertStatement; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.ConstructorDeclaration; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.FieldDeclaration; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.MethodDeclaration; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.TypeDeclaration; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.TypeParameter; | |
import org.eclipse.wst.jsdt.internal.compiler.ast.TypeReference; | |
import org.eclipse.wst.jsdt.internal.compiler.classfmt.ClassFileConstants; | |
import org.eclipse.wst.jsdt.internal.compiler.impl.Constant; | |
public class SourceTypeBinding extends ReferenceBinding { | |
public ReferenceBinding superclass; | |
public ReferenceBinding[] superInterfaces; | |
public FieldBinding[] fields; | |
public MethodBinding[] methods; | |
public ReferenceBinding[] memberTypes; | |
public TypeVariableBinding[] typeVariables; | |
public ClassScope scope; | |
// Synthetics are separated into 5 categories: methods, super methods, fields, class literals, changed declaring type bindings and bridge methods | |
public final static int METHOD_EMUL = 0; | |
public final static int FIELD_EMUL = 1; | |
public final static int CLASS_LITERAL_EMUL = 2; | |
public final static int RECEIVER_TYPE_EMUL = 3; | |
HashMap[] synthetics; | |
char[] genericReferenceTypeSignature; | |
public SourceTypeBinding(char[][] compoundName, PackageBinding fPackage, ClassScope scope) { | |
this.compoundName = compoundName; | |
this.fPackage = fPackage; | |
this.fileName = scope.referenceCompilationUnit().getFileName(); | |
this.modifiers = scope.referenceContext.modifiers; | |
this.sourceName = scope.referenceContext.name; | |
this.scope = scope; | |
// expect the fields & methods to be initialized correctly later | |
this.fields = NoFields; | |
this.methods = NoMethods; | |
computeId(); | |
} | |
private void addDefaultAbstractMethod(MethodBinding abstractMethod) { | |
MethodBinding defaultAbstract = new MethodBinding( | |
abstractMethod.modifiers | AccDefaultAbstract, | |
abstractMethod.selector, | |
abstractMethod.returnType, | |
abstractMethod.parameters, | |
abstractMethod.thrownExceptions, | |
this); | |
MethodBinding[] temp = new MethodBinding[methods.length + 1]; | |
System.arraycopy(methods, 0, temp, 0, methods.length); | |
temp[methods.length] = defaultAbstract; | |
methods = temp; | |
} | |
public void addDefaultAbstractMethods() { | |
if ((tagBits & KnowsDefaultAbstractMethods) != 0) return; | |
tagBits |= KnowsDefaultAbstractMethods; | |
if (isClass() && isAbstract()) { | |
if (fPackage.environment.options.targetJDK >= ClassFileConstants.JDK1_2) return; // no longer added for post 1.2 targets | |
ReferenceBinding[][] interfacesToVisit = new ReferenceBinding[5][]; | |
int lastPosition = 0; | |
interfacesToVisit[lastPosition] = superInterfaces(); | |
for (int i = 0; i <= lastPosition; i++) { | |
ReferenceBinding[] interfaces = interfacesToVisit[i]; | |
for (int j = 0, length = interfaces.length; j < length; j++) { | |
ReferenceBinding superType = interfaces[j]; | |
if (superType.isValidBinding()) { | |
MethodBinding[] superMethods = superType.methods(); | |
for (int m = superMethods.length; --m >= 0;) { | |
MethodBinding method = superMethods[m]; | |
if (!implementsMethod(method)) | |
addDefaultAbstractMethod(method); | |
} | |
ReferenceBinding[] itsInterfaces = superType.superInterfaces(); | |
if (itsInterfaces != NoSuperInterfaces) { | |
if (++lastPosition == interfacesToVisit.length) | |
System.arraycopy(interfacesToVisit, 0, interfacesToVisit = new ReferenceBinding[lastPosition * 2][], 0, lastPosition); | |
interfacesToVisit[lastPosition] = itsInterfaces; | |
} | |
} | |
} | |
} | |
} | |
} | |
/* Add a new synthetic field for <actualOuterLocalVariable>. | |
* Answer the new field or the existing field if one already existed. | |
*/ | |
public FieldBinding addSyntheticField(LocalVariableBinding actualOuterLocalVariable) { | |
if (synthetics == null) { | |
synthetics = new HashMap[4]; | |
} | |
if (synthetics[FIELD_EMUL] == null) { | |
synthetics[FIELD_EMUL] = new HashMap(5); | |
} | |
FieldBinding synthField = (FieldBinding) synthetics[FIELD_EMUL].get(actualOuterLocalVariable); | |
if (synthField == null) { | |
synthField = new SyntheticFieldBinding( | |
CharOperation.concat(SyntheticArgumentBinding.OuterLocalPrefix, actualOuterLocalVariable.name), | |
actualOuterLocalVariable.type, | |
AccPrivate | AccFinal | AccSynthetic, | |
this, | |
Constant.NotAConstant, | |
synthetics[FIELD_EMUL].size()); | |
synthetics[FIELD_EMUL].put(actualOuterLocalVariable, synthField); | |
} | |
// ensure there is not already such a field defined by the user | |
boolean needRecheck; | |
int index = 1; | |
do { | |
needRecheck = false; | |
FieldBinding existingField; | |
if ((existingField = this.getField(synthField.name, true /*resolve*/)) != null) { | |
TypeDeclaration typeDecl = scope.referenceContext; | |
for (int i = 0, max = typeDecl.fields.length; i < max; i++) { | |
FieldDeclaration fieldDecl = typeDecl.fields[i]; | |
if (fieldDecl.binding == existingField) { | |
synthField.name = CharOperation.concat( | |
SyntheticArgumentBinding.OuterLocalPrefix, | |
actualOuterLocalVariable.name, | |
("$" + String.valueOf(index++)).toCharArray()); //$NON-NLS-1$ | |
needRecheck = true; | |
break; | |
} | |
} | |
} | |
} while (needRecheck); | |
return synthField; | |
} | |
/* Add a new synthetic field for <enclosingType>. | |
* Answer the new field or the existing field if one already existed. | |
*/ | |
public FieldBinding addSyntheticField(ReferenceBinding enclosingType) { | |
if (synthetics == null) { | |
synthetics = new HashMap[4]; | |
} | |
if (synthetics[FIELD_EMUL] == null) { | |
synthetics[FIELD_EMUL] = new HashMap(5); | |
} | |
FieldBinding synthField = (FieldBinding) synthetics[FIELD_EMUL].get(enclosingType); | |
if (synthField == null) { | |
synthField = new SyntheticFieldBinding( | |
CharOperation.concat( | |
SyntheticArgumentBinding.EnclosingInstancePrefix, | |
String.valueOf(enclosingType.depth()).toCharArray()), | |
enclosingType, | |
AccDefault | AccFinal | AccSynthetic, | |
this, | |
Constant.NotAConstant, | |
synthetics[FIELD_EMUL].size()); | |
synthetics[FIELD_EMUL].put(enclosingType, synthField); | |
} | |
// ensure there is not already such a field defined by the user | |
FieldBinding existingField; | |
if ((existingField = this.getField(synthField.name, true /*resolve*/)) != null) { | |
TypeDeclaration typeDecl = scope.referenceContext; | |
for (int i = 0, max = typeDecl.fields.length; i < max; i++) { | |
FieldDeclaration fieldDecl = typeDecl.fields[i]; | |
if (fieldDecl.binding == existingField) { | |
scope.problemReporter().duplicateFieldInType(this, fieldDecl); | |
break; | |
} | |
} | |
} | |
return synthField; | |
} | |
/* Add a new synthetic field for a class literal access. | |
* Answer the new field or the existing field if one already existed. | |
*/ | |
public FieldBinding addSyntheticField(TypeBinding targetType, BlockScope blockScope) { | |
if (synthetics == null) { | |
synthetics = new HashMap[4]; | |
} | |
if (synthetics[CLASS_LITERAL_EMUL] == null) { | |
synthetics[CLASS_LITERAL_EMUL] = new HashMap(5); | |
} | |
// use a different table than FIELDS, given there might be a collision between emulation of X.this$0 and X.class. | |
FieldBinding synthField = (FieldBinding) synthetics[CLASS_LITERAL_EMUL].get(targetType); | |
if (synthField == null) { | |
synthField = new SyntheticFieldBinding( | |
("class$" + synthetics[CLASS_LITERAL_EMUL].size()).toCharArray(), //$NON-NLS-1$ | |
blockScope.getJavaLangClass(), | |
AccDefault | AccStatic | AccSynthetic, | |
this, | |
Constant.NotAConstant, | |
synthetics[CLASS_LITERAL_EMUL].size()); | |
synthetics[CLASS_LITERAL_EMUL].put(targetType, synthField); | |
} | |
// ensure there is not already such a field defined by the user | |
FieldBinding existingField; | |
if ((existingField = this.getField(synthField.name, true /*resolve*/)) != null) { | |
TypeDeclaration typeDecl = blockScope.referenceType(); | |
for (int i = 0, max = typeDecl.fields.length; i < max; i++) { | |
FieldDeclaration fieldDecl = typeDecl.fields[i]; | |
if (fieldDecl.binding == existingField) { | |
blockScope.problemReporter().duplicateFieldInType(this, fieldDecl); | |
break; | |
} | |
} | |
} | |
return synthField; | |
} | |
/* Add a new synthetic field for the emulation of the assert statement. | |
* Answer the new field or the existing field if one already existed. | |
*/ | |
public FieldBinding addSyntheticField(AssertStatement assertStatement, BlockScope blockScope) { | |
if (synthetics == null) { | |
synthetics = new HashMap[4]; | |
} | |
if (synthetics[FIELD_EMUL] == null) { | |
synthetics[FIELD_EMUL] = new HashMap(5); | |
} | |
FieldBinding synthField = (FieldBinding) synthetics[FIELD_EMUL].get("assertionEmulation"); //$NON-NLS-1$ | |
if (synthField == null) { | |
synthField = new SyntheticFieldBinding( | |
"$assertionsDisabled".toCharArray(), //$NON-NLS-1$ | |
BooleanBinding, | |
AccDefault | AccStatic | AccSynthetic | AccFinal, | |
this, | |
Constant.NotAConstant, | |
synthetics[FIELD_EMUL].size()); | |
synthetics[FIELD_EMUL].put("assertionEmulation", synthField); //$NON-NLS-1$ | |
} | |
// ensure there is not already such a field defined by the user | |
// ensure there is not already such a field defined by the user | |
boolean needRecheck; | |
int index = 0; | |
do { | |
needRecheck = false; | |
FieldBinding existingField; | |
if ((existingField = this.getField(synthField.name, true /*resolve*/)) != null) { | |
TypeDeclaration typeDecl = scope.referenceContext; | |
for (int i = 0, max = typeDecl.fields.length; i < max; i++) { | |
FieldDeclaration fieldDecl = typeDecl.fields[i]; | |
if (fieldDecl.binding == existingField) { | |
synthField.name = CharOperation.concat( | |
"$assertionsDisabled".toCharArray(), //$NON-NLS-1$ | |
("_" + String.valueOf(index++)).toCharArray()); //$NON-NLS-1$ | |
needRecheck = true; | |
break; | |
} | |
} | |
} | |
} while (needRecheck); | |
return synthField; | |
} | |
/* Add a new synthetic access method for read/write access to <targetField>. | |
Answer the new method or the existing method if one already existed. | |
*/ | |
public SyntheticAccessMethodBinding addSyntheticMethod(FieldBinding targetField, boolean isReadAccess) { | |
if (synthetics == null) { | |
synthetics = new HashMap[4]; | |
} | |
if (synthetics[METHOD_EMUL] == null) { | |
synthetics[METHOD_EMUL] = new HashMap(5); | |
} | |
SyntheticAccessMethodBinding accessMethod = null; | |
SyntheticAccessMethodBinding[] accessors = (SyntheticAccessMethodBinding[]) synthetics[METHOD_EMUL].get(targetField); | |
if (accessors == null) { | |
accessMethod = new SyntheticAccessMethodBinding(targetField, isReadAccess, this); | |
synthetics[METHOD_EMUL].put(targetField, accessors = new SyntheticAccessMethodBinding[2]); | |
accessors[isReadAccess ? 0 : 1] = accessMethod; | |
} else { | |
if ((accessMethod = accessors[isReadAccess ? 0 : 1]) == null) { | |
accessMethod = new SyntheticAccessMethodBinding(targetField, isReadAccess, this); | |
accessors[isReadAccess ? 0 : 1] = accessMethod; | |
} | |
} | |
return accessMethod; | |
} | |
/* Add a new synthetic access method for access to <targetMethod>. | |
* Must distinguish access method used for super access from others (need to use invokespecial bytecode) | |
Answer the new method or the existing method if one already existed. | |
*/ | |
public SyntheticAccessMethodBinding addSyntheticMethod(MethodBinding targetMethod, boolean isSuperAccess) { | |
if (synthetics == null) { | |
synthetics = new HashMap[4]; | |
} | |
if (synthetics[METHOD_EMUL] == null) { | |
synthetics[METHOD_EMUL] = new HashMap(5); | |
} | |
SyntheticAccessMethodBinding accessMethod = null; | |
SyntheticAccessMethodBinding[] accessors = (SyntheticAccessMethodBinding[]) synthetics[METHOD_EMUL].get(targetMethod); | |
if (accessors == null) { | |
accessMethod = new SyntheticAccessMethodBinding(targetMethod, isSuperAccess, this); | |
synthetics[METHOD_EMUL].put(targetMethod, accessors = new SyntheticAccessMethodBinding[2]); | |
accessors[isSuperAccess ? 0 : 1] = accessMethod; | |
} else { | |
if ((accessMethod = accessors[isSuperAccess ? 0 : 1]) == null) { | |
accessMethod = new SyntheticAccessMethodBinding(targetMethod, isSuperAccess, this); | |
accessors[isSuperAccess ? 0 : 1] = accessMethod; | |
} | |
} | |
return accessMethod; | |
} | |
/* | |
* Record the fact that bridge methods need to be generated to override certain inherited methods | |
*/ | |
public SyntheticAccessMethodBinding addSyntheticBridgeMethod(MethodBinding inheritedMethodToBridge, MethodBinding localTargetMethod) { | |
if (synthetics == null) { | |
synthetics = new HashMap[4]; | |
} | |
if (synthetics[METHOD_EMUL] == null) { | |
synthetics[METHOD_EMUL] = new HashMap(5); | |
} else { | |
// TODO (philippe) MethodBindings do not implement equals() so how do we prevent adding 2 'equal' inherited methods? | |
// check to see if there is another equivalent inheritedMethod already added | |
Iterator synthMethods = synthetics[METHOD_EMUL].keySet().iterator(); | |
while (synthMethods.hasNext()) { | |
Object method = synthMethods.next(); | |
if (method instanceof MethodBinding) | |
if (inheritedMethodToBridge.areParameterErasuresEqual((MethodBinding) method)) | |
if (inheritedMethodToBridge.returnType.erasure() == ((MethodBinding) method).returnType.erasure()) | |
return null; | |
} | |
} | |
SyntheticAccessMethodBinding accessMethod = null; | |
SyntheticAccessMethodBinding[] accessors = (SyntheticAccessMethodBinding[]) synthetics[METHOD_EMUL].get(inheritedMethodToBridge); | |
if (accessors == null) { | |
accessMethod = new SyntheticAccessMethodBinding(inheritedMethodToBridge, localTargetMethod); | |
synthetics[METHOD_EMUL].put(inheritedMethodToBridge, accessors = new SyntheticAccessMethodBinding[2]); | |
accessors[1] = accessMethod; | |
} else { | |
if ((accessMethod = accessors[1]) == null) { | |
accessMethod = new SyntheticAccessMethodBinding(inheritedMethodToBridge, localTargetMethod); | |
accessors[1] = accessMethod; | |
} | |
} | |
return accessMethod; | |
} | |
void faultInTypesForFieldsAndMethods() { | |
fields(); | |
methods(); | |
for (int i = 0, length = memberTypes.length; i < length; i++) | |
((SourceTypeBinding) memberTypes[i]).faultInTypesForFieldsAndMethods(); | |
} | |
// NOTE: the type of each field of a source type is resolved when needed | |
public FieldBinding[] fields() { | |
int failed = 0; | |
try { | |
for (int i = 0, length = fields.length; i < length; i++) { | |
if (resolveTypeFor(fields[i]) == null) { | |
fields[i] = null; | |
failed++; | |
} | |
} | |
} finally { | |
if (failed > 0) { | |
// ensure fields are consistent reqardless of the error | |
int newSize = fields.length - failed; | |
if (newSize == 0) | |
return fields = NoFields; | |
FieldBinding[] newFields = new FieldBinding[newSize]; | |
for (int i = 0, j = 0, length = fields.length; i < length; i++) | |
if (fields[i] != null) | |
newFields[j++] = fields[i]; | |
fields = newFields; | |
} | |
} | |
return fields; | |
} | |
/** | |
* @see org.eclipse.wst.jsdt.internal.compiler.lookup.TypeBinding#genericTypeSignature() | |
*/ | |
public char[] genericTypeSignature() { | |
if (this.genericReferenceTypeSignature == null) { | |
if (this.typeVariables == NoTypeVariables) { | |
this.genericReferenceTypeSignature = this.signature(); | |
} else { | |
char[] typeSig = this.signature(); | |
StringBuffer sig = new StringBuffer(10); | |
for (int i = 0; i < typeSig.length-1; i++) { // copy all but trailing semicolon | |
sig.append(typeSig[i]); | |
} | |
sig.append('<'); | |
for (int i = 0, length = this.typeVariables.length; i < length; i++) { | |
sig.append(this.typeVariables[i].genericTypeSignature()); | |
} | |
sig.append(">;"); //$NON-NLS-1$ | |
int sigLength = sig.length(); | |
this.genericReferenceTypeSignature = new char[sigLength]; | |
sig.getChars(0, sigLength, this.genericReferenceTypeSignature, 0); | |
} | |
} | |
return this.genericReferenceTypeSignature; | |
} | |
/** | |
* <param1 ... paramN>superclass superinterface1 ... superinterfaceN | |
* <T:LY<TT;>;U:Ljava/lang/Object;V::Ljava/lang/Runnable;:Ljava/lang/Cloneable;:Ljava/util/Map;>Ljava/lang/Exception;Ljava/lang/Runnable; | |
*/ | |
public char[] genericSignature() { | |
StringBuffer sig = null; | |
if (this.typeVariables != NoTypeVariables) { | |
sig = new StringBuffer(10); | |
sig.append('<'); | |
for (int i = 0, length = this.typeVariables.length; i < length; i++) { | |
sig.append(this.typeVariables[i].genericSignature()); | |
} | |
sig.append('>'); | |
} else { | |
// could still need a signature if any of supertypes is parameterized | |
noSignature: if (this.superclass == null || !this.superclass.isParameterizedType()) { | |
for (int i = 0, length = this.superInterfaces.length; i < length; i++) { | |
if (this.superInterfaces[i].isParameterizedType()) break noSignature; | |
} | |
return null; | |
} | |
sig = new StringBuffer(10); | |
} | |
if (this.superclass != null) { | |
sig.append(this.superclass.genericTypeSignature()); | |
} else { | |
// interface scenario only (as Object cannot be generic) - 65953 | |
sig.append(scope.getJavaLangObject().genericTypeSignature()); | |
} | |
for (int i = 0, length = this.superInterfaces.length; i < length; i++) { | |
sig.append(this.superInterfaces[i].genericTypeSignature()); | |
} | |
return sig.toString().toCharArray(); | |
} | |
public MethodBinding[] getDefaultAbstractMethods() { | |
int count = 0; | |
for (int i = methods.length; --i >= 0;) | |
if (methods[i].isDefaultAbstract()) | |
count++; | |
if (count == 0) return NoMethods; | |
MethodBinding[] result = new MethodBinding[count]; | |
count = 0; | |
for (int i = methods.length; --i >= 0;) | |
if (methods[i].isDefaultAbstract()) | |
result[count++] = methods[i]; | |
return result; | |
} | |
// NOTE: the return type, arg & exception types of each method of a source type are resolved when needed | |
public MethodBinding getExactConstructor(TypeBinding[] argumentTypes) { | |
int argCount = argumentTypes.length; | |
if ((modifiers & AccUnresolved) == 0) { // have resolved all arg types & return type of the methods | |
nextMethod : for (int m = methods.length; --m >= 0;) { | |
MethodBinding method = methods[m]; | |
if (method.selector == ConstructorDeclaration.ConstantPoolName && method.parameters.length == argCount) { | |
TypeBinding[] toMatch = method.parameters; | |
for (int p = 0; p < argCount; p++) | |
if (toMatch[p] != argumentTypes[p]) | |
continue nextMethod; | |
return method; | |
} | |
} | |
} else { | |
MethodBinding[] constructors = getMethods(ConstructorDeclaration.ConstantPoolName); // takes care of duplicates & default abstract methods | |
nextConstructor : for (int c = constructors.length; --c >= 0;) { | |
MethodBinding constructor = constructors[c]; | |
TypeBinding[] toMatch = constructor.parameters; | |
if (toMatch.length == argCount) { | |
for (int p = 0; p < argCount; p++) | |
if (toMatch[p] != argumentTypes[p]) | |
continue nextConstructor; | |
return constructor; | |
} | |
} | |
} | |
return null; | |
} | |
// NOTE: the return type, arg & exception types of each method of a source type are resolved when needed | |
// searches up the hierarchy as long as no potential (but not exact) match was found. | |
public MethodBinding getExactMethod(char[] selector, TypeBinding[] argumentTypes, CompilationUnitScope refScope) { | |
if (refScope != null) | |
refScope.recordTypeReference(this); | |
int argCount = argumentTypes.length; | |
int selectorLength = selector.length; | |
boolean foundNothing = true; | |
if ((modifiers & AccUnresolved) == 0) { // have resolved all arg types & return type of the methods | |
nextMethod : for (int m = methods.length; --m >= 0;) { | |
MethodBinding method = methods[m]; | |
if (method.selector.length == selectorLength && CharOperation.equals(method.selector, selector)) { | |
foundNothing = false; // inner type lookups must know that a method with this name exists | |
if (method.parameters.length == argCount) { | |
TypeBinding[] toMatch = method.parameters; | |
for (int p = 0; p < argCount; p++) | |
if (toMatch[p] != argumentTypes[p]) | |
continue nextMethod; | |
return method; | |
} | |
} | |
} | |
} else { | |
MethodBinding[] matchingMethods = getMethods(selector); // takes care of duplicates & default abstract methods | |
foundNothing = matchingMethods == NoMethods; | |
nextMethod : for (int m = matchingMethods.length; --m >= 0;) { | |
MethodBinding method = matchingMethods[m]; | |
TypeBinding[] toMatch = method.parameters; | |
if (toMatch.length == argCount) { | |
for (int p = 0; p < argCount; p++) | |
if (toMatch[p] != argumentTypes[p]) | |
continue nextMethod; | |
return method; | |
} | |
} | |
} | |
if (foundNothing) { | |
if (isInterface()) { | |
if (superInterfaces.length == 1) | |
return superInterfaces[0].getExactMethod(selector, argumentTypes, refScope); | |
} else if (superclass != null) { | |
return superclass.getExactMethod(selector, argumentTypes, refScope); | |
} | |
} | |
return null; | |
} | |
// NOTE: the type of a field of a source type is resolved when needed | |
public FieldBinding getField(char[] fieldName, boolean needResolve) { | |
// always resolve anyway on source types | |
int fieldLength = fieldName.length; | |
for (int i = 0, length = fields.length; i < length; i++) { | |
FieldBinding field = fields[i]; | |
if (field.name.length == fieldLength && CharOperation.equals(field.name, fieldName)) { | |
FieldBinding result = null; | |
try { | |
result = resolveTypeFor(field); | |
return result; | |
} finally { | |
if (result == null) { | |
// ensure fields are consistent reqardless of the error | |
int newSize = fields.length - 1; | |
if (newSize == 0) { | |
fields = NoFields; | |
} else { | |
FieldBinding[] newFields = new FieldBinding[newSize]; | |
System.arraycopy(fields, 0, newFields, 0, i); | |
System.arraycopy(fields, i + 1, newFields, i, newSize - i); | |
fields = newFields; | |
} | |
} | |
} | |
} | |
} | |
return null; | |
} | |
// NOTE: the return type, arg & exception types of each method of a source type are resolved when needed | |
public MethodBinding[] getMethods(char[] selector) { | |
int selectorLength = selector.length; | |
boolean methodsAreResolved = (modifiers & AccUnresolved) == 0; // have resolved all arg types & return type of the methods | |
java.util.ArrayList matchingMethods = null; | |
for (int i = 0, length = methods.length; i < length; i++) { | |
MethodBinding method = methods[i]; | |
if (method.selector.length == selectorLength && CharOperation.equals(method.selector, selector)) { | |
if (!methodsAreResolved && resolveTypesFor(method) == null || method.returnType == null) { | |
methods(); | |
return getMethods(selector); // try again since the problem methods have been removed | |
} | |
if (matchingMethods == null) | |
matchingMethods = new java.util.ArrayList(2); | |
matchingMethods.add(method); | |
} | |
} | |
if (matchingMethods == null) return NoMethods; | |
MethodBinding[] result = new MethodBinding[matchingMethods.size()]; | |
matchingMethods.toArray(result); | |
if (!methodsAreResolved) { | |
for (int i = 0, length = result.length - 1; i < length; i++) { | |
MethodBinding method = result[i]; | |
for (int j = length; j > i; j--) { | |
if (method.areParameterErasuresEqual(result[j])) { | |
methods(); | |
return getMethods(selector); // try again since the duplicate methods have been removed | |
} | |
} | |
} | |
} | |
return result; | |
} | |
/* Answer the synthetic field for <actualOuterLocalVariable> | |
* or null if one does not exist. | |
*/ | |
public FieldBinding getSyntheticField(LocalVariableBinding actualOuterLocalVariable) { | |
if (synthetics == null || synthetics[FIELD_EMUL] == null) return null; | |
return (FieldBinding) synthetics[FIELD_EMUL].get(actualOuterLocalVariable); | |
} | |
/* | |
* Answer the bridge method associated for an inherited methods or null if one does not exist | |
*/ | |
public SyntheticAccessMethodBinding getSyntheticBridgeMethod(MethodBinding inheritedMethodToBridge) { | |
if (synthetics == null) return null; | |
if (synthetics[METHOD_EMUL] == null) return null; | |
SyntheticAccessMethodBinding[] accessors = (SyntheticAccessMethodBinding[]) synthetics[METHOD_EMUL].get(inheritedMethodToBridge); | |
if (accessors == null) return null; | |
return accessors[1]; | |
} | |
/** | |
* Returns true if a type is identical to another one, | |
* or for generic types, true if compared to its raw type. | |
*/ | |
public boolean isEquivalentTo(TypeBinding otherType) { | |
if (this == otherType) return true; | |
if (otherType == null) return false; | |
if (otherType.isWildcard()) // wildcard | |
return ((WildcardBinding) otherType).boundCheck(this); | |
if (this.typeVariables == NoTypeVariables) return false; | |
if (otherType.isParameterizedType()) { | |
if ((otherType.tagBits & HasWildcard) == 0 && (!this.isMemberType() || !otherType.isMemberType())) | |
return false; // should have been identical | |
ParameterizedTypeBinding otherParamType = (ParameterizedTypeBinding) otherType; | |
if (this != otherParamType.type) | |
return false; | |
ReferenceBinding enclosing = enclosingType(); | |
if (enclosing != null && !enclosing.isEquivalentTo(otherParamType.enclosingType())) | |
return false; | |
int length = this.typeVariables == null ? 0 : this.typeVariables.length; | |
TypeBinding[] otherArguments = otherParamType.arguments; | |
int otherLength = otherArguments == null ? 0 : otherArguments.length; | |
if (otherLength != length) | |
return false; | |
// argument must be identical, only equivalence is allowed if wildcard other type | |
for (int i = 0; i < length; i++) { | |
TypeBinding argument = this.typeVariables[i]; | |
TypeBinding otherArgument = otherArguments[i]; | |
if (!(argument == otherArgument | |
|| (otherArgument.isWildcard()) && argument.isEquivalentTo(otherArgument))) { | |
return false; | |
} | |
} | |
return true; | |
} else if (otherType.isRawType()) | |
return otherType.erasure() == this; | |
return false; | |
} | |
public boolean isGenericType() { | |
return this.typeVariables != NoTypeVariables; | |
} | |
public ReferenceBinding[] memberTypes() { | |
return this.memberTypes; | |
} | |
public FieldBinding getUpdatedFieldBinding(FieldBinding targetField, ReferenceBinding newDeclaringClass) { | |
if (this.synthetics == null) { | |
this.synthetics = new HashMap[4]; | |
} | |
if (this.synthetics[RECEIVER_TYPE_EMUL] == null) { | |
this.synthetics[RECEIVER_TYPE_EMUL] = new HashMap(5); | |
} | |
Hashtable fieldMap = (Hashtable) this.synthetics[RECEIVER_TYPE_EMUL].get(targetField); | |
if (fieldMap == null) { | |
fieldMap = new Hashtable(5); | |
this.synthetics[RECEIVER_TYPE_EMUL].put(targetField, fieldMap); | |
} | |
FieldBinding updatedField = (FieldBinding) fieldMap.get(newDeclaringClass); | |
if (updatedField == null){ | |
updatedField = new FieldBinding(targetField, newDeclaringClass); | |
fieldMap.put(newDeclaringClass, updatedField); | |
} | |
return updatedField; | |
} | |
public MethodBinding getUpdatedMethodBinding(MethodBinding targetMethod, ReferenceBinding newDeclaringClass) { | |
if (this.synthetics == null) { | |
this.synthetics = new HashMap[4]; | |
} | |
if (this.synthetics[RECEIVER_TYPE_EMUL] == null) { | |
this.synthetics[RECEIVER_TYPE_EMUL] = new HashMap(5); | |
} | |
Hashtable methodMap = (Hashtable) synthetics[RECEIVER_TYPE_EMUL].get(targetMethod); | |
if (methodMap == null) { | |
methodMap = new Hashtable(5); | |
this.synthetics[RECEIVER_TYPE_EMUL].put(targetMethod, methodMap); | |
} | |
MethodBinding updatedMethod = (MethodBinding) methodMap.get(newDeclaringClass); | |
if (updatedMethod == null){ | |
updatedMethod = new MethodBinding(targetMethod, newDeclaringClass); | |
methodMap.put(newDeclaringClass, updatedMethod); | |
} | |
return updatedMethod; | |
} | |
public boolean hasMemberTypes() { | |
return this.memberTypes.length > 0; | |
} | |
// NOTE: the return type, arg & exception types of each method of a source type are resolved when needed | |
public MethodBinding[] methods() { | |
if ((modifiers & AccUnresolved) == 0) | |
return methods; | |
int failed = 0; | |
try { | |
for (int i = 0, length = methods.length; i < length; i++) { | |
if (resolveTypesFor(methods[i]) == null) { | |
methods[i] = null; // unable to resolve parameters | |
failed++; | |
} | |
} | |
// find & report collision cases | |
for (int i = 0, length = methods.length; i < length; i++) { | |
MethodBinding method = methods[i]; | |
if (method != null) { | |
AbstractMethodDeclaration methodDecl = null; | |
for (int j = length - 1; j > i; j--) { | |
MethodBinding method2 = methods[j]; | |
if (method2 != null && CharOperation.equals(method.selector, method2.selector)) { | |
if (method.areParameterErasuresEqual(method2)) { | |
if (methodDecl == null) { | |
methodDecl = method.sourceMethod(); // cannot be retrieved after binding is lost | |
scope.problemReporter().duplicateMethodInType(this, methodDecl); | |
methodDecl.binding = null; | |
methods[i] = null; | |
failed++; | |
} | |
AbstractMethodDeclaration method2Decl = method2.sourceMethod(); | |
scope.problemReporter().duplicateMethodInType(this, method2Decl); | |
method2Decl.binding = null; | |
methods[j] = null; | |
failed++; | |
} | |
} | |
} | |
if (method.returnType == null && methodDecl == null) { // forget method with invalid return type... was kept to detect possible collisions | |
method.sourceMethod().binding = null; | |
methods[i] = null; | |
failed++; | |
} | |
} | |
} | |
} finally { | |
if (failed > 0) { | |
int newSize = methods.length - failed; | |
if (newSize == 0) { | |
methods = NoMethods; | |
} else { | |
MethodBinding[] newMethods = new MethodBinding[newSize]; | |
for (int i = 0, j = 0, length = methods.length; i < length; i++) | |
if (methods[i] != null) | |
newMethods[j++] = methods[i]; | |
methods = newMethods; | |
} | |
} | |
// handle forward references to potential default abstract methods | |
addDefaultAbstractMethods(); | |
modifiers ^= AccUnresolved; | |
} | |
return methods; | |
} | |
private FieldBinding resolveTypeFor(FieldBinding field) { | |
if ((field.modifiers & AccUnresolved) == 0) | |
return field; | |
FieldDeclaration[] fieldDecls = scope.referenceContext.fields; | |
for (int f = 0, length = fieldDecls.length; f < length; f++) { | |
if (fieldDecls[f].binding != field) | |
continue; | |
MethodScope initializationScope = field.isStatic() | |
? scope.referenceContext.staticInitializerScope | |
: scope.referenceContext.initializerScope; | |
FieldBinding previousField = initializationScope.initializedField; | |
try { | |
initializationScope.initializedField = field; | |
TypeBinding fieldType = fieldDecls[f].type.resolveType(initializationScope); | |
field.type = fieldType; | |
field.modifiers ^= AccUnresolved; | |
if (fieldType == null) { | |
fieldDecls[f].binding = null; | |
return null; | |
} | |
if (fieldType == VoidBinding) { | |
scope.problemReporter().variableTypeCannotBeVoid(fieldDecls[f]); | |
fieldDecls[f].binding = null; | |
return null; | |
} | |
if (fieldType.isArrayType() && ((ArrayBinding) fieldType).leafComponentType == VoidBinding) { | |
scope.problemReporter().variableTypeCannotBeVoidArray(fieldDecls[f]); | |
fieldDecls[f].binding = null; | |
return null; | |
} | |
if (fieldType instanceof ReferenceBinding && (((ReferenceBinding)fieldType).modifiers & AccGenericSignature) != 0) { | |
field.modifiers |= AccGenericSignature; | |
} | |
} finally { | |
initializationScope.initializedField = previousField; | |
} | |
return field; | |
} | |
return null; // should never reach this point | |
} | |
private MethodBinding resolveTypesFor(MethodBinding method) { | |
if ((method.modifiers & AccUnresolved) == 0) | |
return method; | |
AbstractMethodDeclaration methodDecl = method.sourceMethod(); | |
if (methodDecl == null) return null; // method could not be resolved in previous iteration | |
TypeParameter[] typeParameters = methodDecl.typeParameters(); | |
if (typeParameters != null) methodDecl.scope.connectTypeVariables(typeParameters); | |
TypeReference[] exceptionTypes = methodDecl.thrownExceptions; | |
if (exceptionTypes != null) { | |
int size = exceptionTypes.length; | |
method.thrownExceptions = new ReferenceBinding[size]; | |
ReferenceBinding throwable = scope.getJavaLangThrowable(); | |
int count = 0; | |
ReferenceBinding resolvedExceptionType; | |
for (int i = 0; i < size; i++) { | |
resolvedExceptionType = (ReferenceBinding) exceptionTypes[i].resolveType(methodDecl.scope); | |
if (resolvedExceptionType == null) { | |
continue; | |
} | |
if (resolvedExceptionType.isGenericType() || resolvedExceptionType.isParameterizedType()) { | |
methodDecl.scope.problemReporter().invalidParameterizedExceptionType(resolvedExceptionType, exceptionTypes[i]); | |
continue; | |
} | |
if (throwable != resolvedExceptionType && !throwable.isSuperclassOf(resolvedExceptionType)) { | |
methodDecl.scope.problemReporter().cannotThrowType(this, methodDecl, exceptionTypes[i], resolvedExceptionType); | |
continue; | |
} | |
if ((resolvedExceptionType.modifiers & AccGenericSignature) != 0) { | |
method.modifiers |= AccGenericSignature; | |
} | |
method.thrownExceptions[count++] = resolvedExceptionType; | |
} | |
if (count < size) | |
System.arraycopy(method.thrownExceptions, 0, method.thrownExceptions = new ReferenceBinding[count], 0, count); | |
} | |
boolean foundArgProblem = false; | |
Argument[] arguments = methodDecl.arguments; | |
if (arguments != null) { | |
int size = arguments.length; | |
method.parameters = new TypeBinding[size]; | |
for (int i = 0; i < size; i++) { | |
Argument arg = arguments[i]; | |
TypeBinding parameterType = arg.type.resolveType(methodDecl.scope); | |
if (parameterType == null) { | |
foundArgProblem = true; | |
} else if (parameterType == VoidBinding) { | |
methodDecl.scope.problemReporter().argumentTypeCannotBeVoid(this, methodDecl, arg); | |
foundArgProblem = true; | |
} else if (parameterType.isArrayType() && ((ArrayBinding) parameterType).leafComponentType == VoidBinding) { | |
methodDecl.scope.problemReporter().argumentTypeCannotBeVoidArray(this, methodDecl, arg); | |
foundArgProblem = true; | |
} else { | |
if (parameterType instanceof ReferenceBinding && (((ReferenceBinding)parameterType).modifiers & AccGenericSignature) != 0) { | |
method.modifiers |= AccGenericSignature; | |
} | |
method.parameters[i] = parameterType; | |
} | |
} | |
} | |
boolean foundReturnTypeProblem = false; | |
if (!method.isConstructor()) { | |
TypeReference returnType = methodDecl instanceof MethodDeclaration | |
? ((MethodDeclaration) methodDecl).returnType | |
: ((AnnotationTypeMemberDeclaration) methodDecl).returnType; | |
if (returnType == null) { | |
methodDecl.scope.problemReporter().missingReturnType(methodDecl); | |
method.returnType = null; | |
foundReturnTypeProblem = true; | |
} else { | |
TypeBinding methodType = returnType.resolveType(methodDecl.scope); | |
if (methodType == null) { | |
foundReturnTypeProblem = true; | |
} else if (methodType.isArrayType() && ((ArrayBinding) methodType).leafComponentType == VoidBinding) { | |
methodDecl.scope.problemReporter().returnTypeCannotBeVoidArray(this, (MethodDeclaration) methodDecl); | |
foundReturnTypeProblem = true; | |
} else { | |
method.returnType = methodType; | |
if (methodType instanceof ReferenceBinding && (((ReferenceBinding)methodType).modifiers & AccGenericSignature) != 0) { | |
method.modifiers |= AccGenericSignature; | |
} | |
} | |
} | |
} | |
if (foundArgProblem) { | |
methodDecl.binding = null; | |
return null; | |
} | |
if (foundReturnTypeProblem) | |
return method; // but its still unresolved with a null return type & is still connected to its method declaration | |
method.modifiers ^= AccUnresolved; | |
return method; | |
} | |
public final int sourceEnd() { | |
return scope.referenceContext.sourceEnd; | |
} | |
public final int sourceStart() { | |
return scope.referenceContext.sourceStart; | |
} | |
public ReferenceBinding superclass() { | |
return superclass; | |
} | |
public ReferenceBinding[] superInterfaces() { | |
return superInterfaces; | |
} | |
// TODO (philippe) could be a performance issue since some senders are building the list just to count them | |
public SyntheticAccessMethodBinding[] syntheticAccessMethods() { | |
if (synthetics == null || synthetics[METHOD_EMUL] == null || synthetics[METHOD_EMUL].size() == 0) return null; | |
// difficult to compute size up front because of the embedded arrays so assume there is only 1 | |
int index = 0; | |
SyntheticAccessMethodBinding[] bindings = new SyntheticAccessMethodBinding[1]; | |
Iterator fieldsOrMethods = synthetics[METHOD_EMUL].keySet().iterator(); | |
while (fieldsOrMethods.hasNext()) { | |
Object fieldOrMethod = fieldsOrMethods.next(); | |
if (fieldOrMethod instanceof MethodBinding) { | |
SyntheticAccessMethodBinding[] methodAccessors = (SyntheticAccessMethodBinding[]) synthetics[METHOD_EMUL].get(fieldOrMethod); | |
int numberOfAccessors = 0; | |
if (methodAccessors[0] != null) numberOfAccessors++; | |
if (methodAccessors[1] != null) numberOfAccessors++; | |
if (index + numberOfAccessors > bindings.length) | |
System.arraycopy(bindings, 0, (bindings = new SyntheticAccessMethodBinding[index + numberOfAccessors]), 0, index); | |
if (methodAccessors[0] != null) | |
bindings[index++] = methodAccessors[0]; // super access | |
if (methodAccessors[1] != null) | |
bindings[index++] = methodAccessors[1]; // normal access or bridge | |
} else { | |
SyntheticAccessMethodBinding[] fieldAccessors = (SyntheticAccessMethodBinding[]) synthetics[METHOD_EMUL].get(fieldOrMethod); | |
int numberOfAccessors = 0; | |
if (fieldAccessors[0] != null) numberOfAccessors++; | |
if (fieldAccessors[1] != null) numberOfAccessors++; | |
if (index + numberOfAccessors > bindings.length) | |
System.arraycopy(bindings, 0, (bindings = new SyntheticAccessMethodBinding[index + numberOfAccessors]), 0, index); | |
if (fieldAccessors[0] != null) | |
bindings[index++] = fieldAccessors[0]; // read access | |
if (fieldAccessors[1] != null) | |
bindings[index++] = fieldAccessors[1]; // write access | |
} | |
} | |
// sort them in according to their own indexes | |
int length; | |
SyntheticAccessMethodBinding[] sortedBindings = new SyntheticAccessMethodBinding[length = bindings.length]; | |
for (int i = 0; i < length; i++){ | |
SyntheticAccessMethodBinding binding = bindings[i]; | |
sortedBindings[binding.index] = binding; | |
} | |
return sortedBindings; | |
} | |
/** | |
* Answer the collection of synthetic fields to append into the classfile | |
*/ | |
public FieldBinding[] syntheticFields() { | |
if (synthetics == null) return null; | |
int fieldSize = synthetics[FIELD_EMUL] == null ? 0 : synthetics[FIELD_EMUL].size(); | |
int literalSize = synthetics[CLASS_LITERAL_EMUL] == null ? 0 :synthetics[CLASS_LITERAL_EMUL].size(); | |
int totalSize = fieldSize + literalSize; | |
if (totalSize == 0) return null; | |
FieldBinding[] bindings = new FieldBinding[totalSize]; | |
// add innerclass synthetics | |
if (synthetics[FIELD_EMUL] != null){ | |
Iterator elements = synthetics[FIELD_EMUL].values().iterator(); | |
for (int i = 0; i < fieldSize; i++) { | |
SyntheticFieldBinding synthBinding = (SyntheticFieldBinding) elements.next(); | |
bindings[synthBinding.index] = synthBinding; | |
} | |
} | |
// add class literal synthetics | |
if (synthetics[CLASS_LITERAL_EMUL] != null){ | |
Iterator elements = synthetics[CLASS_LITERAL_EMUL].values().iterator(); | |
for (int i = 0; i < literalSize; i++) { | |
SyntheticFieldBinding synthBinding = (SyntheticFieldBinding) elements.next(); | |
bindings[fieldSize+synthBinding.index] = synthBinding; | |
} | |
} | |
return bindings; | |
} | |
public String toString() { | |
StringBuffer buffer = new StringBuffer(30); | |
buffer.append("(id="); //$NON-NLS-1$ | |
if (id == NoId) | |
buffer.append("NoId"); //$NON-NLS-1$ | |
else | |
buffer.append(id); | |
buffer.append(")\n"); //$NON-NLS-1$ | |
if (isDeprecated()) buffer.append("deprecated "); //$NON-NLS-1$ | |
if (isPublic()) buffer.append("public "); //$NON-NLS-1$ | |
if (isProtected()) buffer.append("protected "); //$NON-NLS-1$ | |
if (isPrivate()) buffer.append("private "); //$NON-NLS-1$ | |
if (isAbstract() && isClass()) buffer.append("abstract "); //$NON-NLS-1$ | |
if (isStatic() && isNestedType()) buffer.append("static "); //$NON-NLS-1$ | |
if (isFinal()) buffer.append("final "); //$NON-NLS-1$ | |
buffer.append(isInterface() ? "interface " : "class "); //$NON-NLS-1$ //$NON-NLS-2$ | |
buffer.append((compoundName != null) ? CharOperation.toString(compoundName) : "UNNAMED TYPE"); //$NON-NLS-1$ | |
if (this.typeVariables != null && this.typeVariables != NoTypeVariables) { | |
buffer.append("\n\t<"); //$NON-NLS-1$ | |
for (int i = 0, length = this.typeVariables.length; i < length; i++) { | |
if (i > 0) | |
buffer.append(", "); //$NON-NLS-1$ | |
buffer.append((this.typeVariables[i] != null) ? this.typeVariables[i].toString() : "NULL TYPE VARIABLE"); //$NON-NLS-1$ | |
} | |
buffer.append(">"); //$NON-NLS-1$ | |
} else { | |
buffer.append("<NULL TYPE VARIABLES>"); //$NON-NLS-1$ | |
} | |
buffer.append("\n\textends "); //$NON-NLS-1$ | |
buffer.append((superclass != null) ? superclass.debugName() : "NULL TYPE"); //$NON-NLS-1$ | |
if (superInterfaces != null) { | |
if (superInterfaces != NoSuperInterfaces) { | |
buffer.append("\n\timplements : "); //$NON-NLS-1$ | |
for (int i = 0, length = superInterfaces.length; i < length; i++) { | |
if (i > 0) | |
buffer.append(", "); //$NON-NLS-1$ | |
buffer.append((superInterfaces[i] != null) ? superInterfaces[i].debugName() : "NULL TYPE"); //$NON-NLS-1$ | |
} | |
} | |
} else { | |
buffer.append("NULL SUPERINTERFACES"); //$NON-NLS-1$ | |
} | |
if (enclosingType() != null) { | |
buffer.append("\n\tenclosing type : "); //$NON-NLS-1$ | |
buffer.append(enclosingType().debugName()); | |
} | |
if (fields != null) { | |
if (fields != NoFields) { | |
buffer.append("\n/* fields */"); //$NON-NLS-1$ | |
for (int i = 0, length = fields.length; i < length; i++) | |
buffer.append('\n').append((fields[i] != null) ? fields[i].toString() : "NULL FIELD"); //$NON-NLS-1$ | |
} | |
} else { | |
buffer.append("NULL FIELDS"); //$NON-NLS-1$ | |
} | |
if (methods != null) { | |
if (methods != NoMethods) { | |
buffer.append("\n/* methods */"); //$NON-NLS-1$ | |
for (int i = 0, length = methods.length; i < length; i++) | |
buffer.append('\n').append((methods[i] != null) ? methods[i].toString() : "NULL METHOD"); //$NON-NLS-1$ //$NON-NLS-2$ | |
} | |
} else { | |
buffer.append("NULL METHODS"); //$NON-NLS-1$ | |
} | |
if (memberTypes != null) { | |
if (memberTypes != NoMemberTypes) { | |
buffer.append("\n/* members */"); //$NON-NLS-1$ | |
for (int i = 0, length = memberTypes.length; i < length; i++) | |
buffer.append('\n').append((memberTypes[i] != null) ? memberTypes[i].toString() : "NULL TYPE"); //$NON-NLS-1$ //$NON-NLS-2$ | |
} | |
} else { | |
buffer.append("NULL MEMBER TYPES"); //$NON-NLS-1$ | |
} | |
buffer.append("\n\n"); //$NON-NLS-1$ | |
return buffer.toString(); | |
} | |
public TypeVariableBinding[] typeVariables() { | |
return this.typeVariables; | |
} | |
void verifyMethods(MethodVerifier verifier) { | |
verifier.verify(this); | |
for (int i = memberTypes.length; --i >= 0;) | |
((SourceTypeBinding) memberTypes[i]).verifyMethods(verifier); | |
} | |
/* Answer the synthetic field for <targetEnclosingType> | |
* or null if one does not exist. | |
*/ | |
public FieldBinding getSyntheticField(ReferenceBinding targetEnclosingType, boolean onlyExactMatch) { | |
if (synthetics == null || synthetics[FIELD_EMUL] == null) return null; | |
FieldBinding field = (FieldBinding) synthetics[FIELD_EMUL].get(targetEnclosingType); | |
if (field != null) return field; | |
// type compatibility : to handle cases such as | |
// class T { class M{}} | |
// class S extends T { class N extends M {}} --> need to use S as a default enclosing instance for the super constructor call in N(). | |
if (!onlyExactMatch){ | |
Iterator accessFields = synthetics[FIELD_EMUL].values().iterator(); | |
while (accessFields.hasNext()) { | |
field = (FieldBinding) accessFields.next(); | |
if (CharOperation.prefixEquals(SyntheticArgumentBinding.EnclosingInstancePrefix, field.name) | |
&& ((ReferenceBinding) field.type).findSuperTypeErasingTo(targetEnclosingType) != null) | |
return field; | |
} | |
} | |
return null; | |
} | |
} |