/*******************************************************************************
* Copyright (c) 2000, 2007 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.aspectj.org.eclipse.jdt.internal.core.search.matching;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.*;
import org.aspectj.org.eclipse.jdt.core.*;
import org.aspectj.org.eclipse.jdt.core.compiler.CharOperation;
import org.aspectj.org.eclipse.jdt.core.search.*;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.*;
import org.aspectj.org.eclipse.jdt.internal.compiler.env.IBinaryType;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.*;
import org.aspectj.org.eclipse.jdt.internal.compiler.util.SimpleSet;
import org.aspectj.org.eclipse.jdt.internal.core.JavaElement;
public class TypeReferenceLocator extends PatternLocator {
protected TypeReferencePattern pattern;
protected boolean isDeclarationOfReferencedTypesPattern;
public TypeReferenceLocator(TypeReferencePattern pattern) {
super(pattern);
this.pattern = pattern;
this.isDeclarationOfReferencedTypesPattern = this.pattern instanceof DeclarationOfReferencedTypesPattern;
}
protected IJavaElement findElement(IJavaElement element, int accuracy) {
// need exact match to be able to open on type ref
if (accuracy != SearchMatch.A_ACCURATE) return null;
// element that references the type must be included in the enclosing element
DeclarationOfReferencedTypesPattern declPattern = (DeclarationOfReferencedTypesPattern) this.pattern;
while (element != null && !declPattern.enclosingElement.equals(element))
element = element.getParent();
return element;
}
public int match(Annotation node, MatchingNodeSet nodeSet) {
return match(node.type, nodeSet);
}
public int match(ASTNode node, MatchingNodeSet nodeSet) { // interested in ImportReference
if (!(node instanceof ImportReference)) return IMPOSSIBLE_MATCH;
return nodeSet.addMatch(node, matchLevel((ImportReference) node));
}
//public int match(ConstructorDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
//public int match(Expression node, MatchingNodeSet nodeSet) - SKIP IT
//public int match(FieldDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
//public int match(MethodDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
//public int match(MessageSend node, MatchingNodeSet nodeSet) - SKIP IT
public int match(Reference node, MatchingNodeSet nodeSet) { // interested in NameReference & its subtypes
if (!(node instanceof NameReference)) return IMPOSSIBLE_MATCH;
if (this.pattern.simpleName == null)
return nodeSet.addMatch(node, ((InternalSearchPattern)this.pattern).mustResolve ? POSSIBLE_MATCH : ACCURATE_MATCH);
if (node instanceof SingleNameReference) {
if (matchesName(this.pattern.simpleName, ((SingleNameReference) node).token))
return nodeSet.addMatch(node, POSSIBLE_MATCH); // resolution is needed to find out if it is a type ref
} else {
char[][] tokens = ((QualifiedNameReference) node).tokens;
for (int i = 0, max = tokens.length; i < max; i++)
if (matchesName(this.pattern.simpleName, tokens[i]))
return nodeSet.addMatch(node, POSSIBLE_MATCH); // resolution is needed to find out if it is a type ref
}
return IMPOSSIBLE_MATCH;
}
//public int match(TypeDeclaration node, MatchingNodeSet nodeSet) - SKIP IT
public int match(TypeReference node, MatchingNodeSet nodeSet) {
if (this.pattern.simpleName == null)
return nodeSet.addMatch(node, ((InternalSearchPattern)this.pattern).mustResolve ? POSSIBLE_MATCH : ACCURATE_MATCH);
if (node instanceof SingleTypeReference) {
if (matchesName(this.pattern.simpleName, ((SingleTypeReference) node).token))
return nodeSet.addMatch(node, ((InternalSearchPattern)this.pattern).mustResolve ? POSSIBLE_MATCH : ACCURATE_MATCH);
} else {
char[][] tokens = ((QualifiedTypeReference) node).tokens;
for (int i = 0, max = tokens.length; i < max; i++)
if (matchesName(this.pattern.simpleName, tokens[i]))
return nodeSet.addMatch(node, POSSIBLE_MATCH); // resolution is needed to find out if it is a type ref
}
return IMPOSSIBLE_MATCH;
}
protected int matchLevel(ImportReference importRef) {
if (this.pattern.qualification == null) {
if (this.pattern.simpleName == null) return ACCURATE_MATCH;
char[][] tokens = importRef.tokens;
if (matchesName(this.pattern.simpleName, tokens[tokens.length-1])) return ACCURATE_MATCH;
} else {
char[][] tokens = importRef.tokens;
char[] qualifiedPattern = this.pattern.simpleName == null
? this.pattern.qualification
: CharOperation.concat(this.pattern.qualification, this.pattern.simpleName, '.');
char[] qualifiedTypeName = CharOperation.concatWith(tokens, '.');
if (qualifiedPattern == null) return ACCURATE_MATCH; // null is as if it was "*"
if (qualifiedTypeName == null) return IMPOSSIBLE_MATCH; // cannot match null name
if (qualifiedTypeName.length == 0) { // empty name
if (qualifiedPattern.length == 0) { // can only matches empty pattern
return ACCURATE_MATCH;
}
return IMPOSSIBLE_MATCH;
}
boolean matchFirstChar = !this.isCaseSensitive || (qualifiedPattern[0] == qualifiedTypeName[0]);
if (this.isCamelCase && matchFirstChar && CharOperation.camelCaseMatch(qualifiedPattern, qualifiedTypeName)) {
return POSSIBLE_MATCH;
}
switch (this.matchMode) {
case SearchPattern.R_EXACT_MATCH:
case SearchPattern.R_PREFIX_MATCH:
if (CharOperation.prefixEquals(qualifiedPattern, qualifiedTypeName, this.isCaseSensitive)) {
return POSSIBLE_MATCH;
}
break;
case SearchPattern.R_PATTERN_MATCH:
if (CharOperation.match(qualifiedPattern, qualifiedTypeName, this.isCaseSensitive)) {
return POSSIBLE_MATCH;
}
break;
case SearchPattern.R_REGEXP_MATCH :
// TODO (frederic) implement regular expression match
break;
}
}
return IMPOSSIBLE_MATCH;
}
/* (non-Javadoc)
* @see org.aspectj.org.eclipse.jdt.internal.core.search.matching.PatternLocator#matchLevelAndReportImportRef(org.aspectj.org.eclipse.jdt.internal.compiler.ast.ImportReference, org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Binding, org.aspectj.org.eclipse.jdt.internal.core.search.matching.MatchLocator)
*/
protected void matchLevelAndReportImportRef(ImportReference importRef, Binding binding, MatchLocator locator) throws CoreException {
Binding refBinding = binding;
if (importRef.isStatic()) {
// for static import, binding can be a field binding or a member type binding
// verify that in this case binding is static and use declaring class for fields
if (binding instanceof FieldBinding) {
FieldBinding fieldBinding = (FieldBinding) binding;
if (!fieldBinding.isStatic()) return;
refBinding = fieldBinding.declaringClass;
} else if (binding instanceof MethodBinding) {
MethodBinding methodBinding = (MethodBinding) binding;
if (!methodBinding.isStatic()) return;
refBinding = methodBinding.declaringClass;
} else if (binding instanceof MemberTypeBinding) {
MemberTypeBinding memberBinding = (MemberTypeBinding) binding;
if (!memberBinding.isStatic()) return;
}
// resolve and report
int level = resolveLevel(refBinding);
if (level >= INACCURATE_MATCH) {
matchReportImportRef(
importRef,
binding,
locator.createImportHandle(importRef),
level == ACCURATE_MATCH
? SearchMatch.A_ACCURATE
: SearchMatch.A_INACCURATE,
locator);
}
return;
}
super.matchLevelAndReportImportRef(importRef, refBinding, locator);
}
protected void matchReportImportRef(ImportReference importRef, Binding binding, IJavaElement element, int accuracy, MatchLocator locator) throws CoreException {
if (this.isDeclarationOfReferencedTypesPattern) {
if ((element = findElement(element, accuracy)) != null) {
SimpleSet knownTypes = ((DeclarationOfReferencedTypesPattern) this.pattern).knownTypes;
while (binding instanceof ReferenceBinding) {
ReferenceBinding typeBinding = (ReferenceBinding) binding;
reportDeclaration(typeBinding, 1, locator, knownTypes);
binding = typeBinding.enclosingType();
}
}
return;
}
// return if this is not necessary to report
if (this.pattern.hasTypeArguments() && !this.isEquivalentMatch &&!this.isErasureMatch) {
return;
}
// Create search match
match = locator.newTypeReferenceMatch(element, binding, accuracy, importRef);
// set match raw flag and rule
match.setRaw(true);
if (this.pattern.hasTypeArguments()) {
// binding is raw => only compatible erasure if pattern has type arguments
match.setRule(match.getRule() & (~SearchPattern.R_FULL_MATCH));
}
// Try to find best selection for match
ReferenceBinding typeBinding = null;
boolean lastButOne = false;
if (binding instanceof ReferenceBinding) {
typeBinding = (ReferenceBinding) binding;
} else if (binding instanceof FieldBinding) { // may happen for static import
typeBinding = ((FieldBinding)binding).declaringClass;
lastButOne = importRef.isStatic() && ((importRef.bits & ASTNode.OnDemand) == 0);
} else if (binding instanceof MethodBinding) { // may happen for static import
typeBinding = ((MethodBinding)binding).declaringClass;
lastButOne = importRef.isStatic() && ((importRef.bits & ASTNode.OnDemand) == 0);
}
if (typeBinding != null) {
int lastIndex = importRef.tokens.length - 1;
if (lastButOne) {
// for field or method static import, use last but one token
lastIndex--;
}
if (typeBinding instanceof ProblemReferenceBinding) {
ProblemReferenceBinding pbBinding = (ProblemReferenceBinding) typeBinding;
typeBinding = pbBinding.closestMatch();
lastIndex = pbBinding.compoundName.length - 1;
}
// try to match all enclosing types for which the token matches as well.
while (typeBinding != null && lastIndex >= 0) {
if (resolveLevelForType(typeBinding) != IMPOSSIBLE_MATCH) {
if (locator.encloses(element)) {
long[] positions = importRef.sourcePositions;
// index now depends on pattern type signature
int index = lastIndex;
if (this.pattern.qualification != null) {
index = lastIndex - this.pattern.segmentsSize;
}
if (index < 0) index = 0;
int start = (int) ((positions[index]) >>> 32);
int end = (int) positions[lastIndex];
// report match
match.setOffset(start);
match.setLength(end-start+1);
locator.report(match);
}
return;
}
lastIndex--;
typeBinding = typeBinding.enclosingType();
}
}
locator.reportAccurateTypeReference(match, importRef, this.pattern.simpleName);
}
protected void matchReportReference(ArrayTypeReference arrayRef, IJavaElement element, Binding elementBinding, int accuracy, MatchLocator locator) throws CoreException {
if (this.pattern.simpleName == null) {
// TODO (frederic) need to add a test for this case while searching generic types...
if (locator.encloses(element)) {
int offset = arrayRef.sourceStart;
int length = arrayRef.sourceEnd-offset+1;
if (this.match == null) {
this.match = locator.newTypeReferenceMatch(element, elementBinding, accuracy, offset, length, arrayRef);
} else {
this.match.setOffset(offset);
this.match.setLength(length);
}
locator.report(match);
return;
}
}
match = locator.newTypeReferenceMatch(element, elementBinding, accuracy, arrayRef);
if (arrayRef.resolvedType != null) {
matchReportReference(arrayRef, -1, arrayRef.resolvedType.leafComponentType(), locator);
return;
}
locator.reportAccurateTypeReference(match, arrayRef, this.pattern.simpleName);
}
/**
* Reports the match of the given reference.
*/
protected void matchReportReference(ASTNode reference, IJavaElement element, Binding elementBinding, int accuracy, MatchLocator locator) throws CoreException {
matchReportReference(reference, element, null, null, elementBinding, accuracy, locator);
}
/**
* Reports the match of the given reference. Also provide a local and other elements to eventually report in match.
*/
protected void matchReportReference(ASTNode reference, IJavaElement element, IJavaElement localElement, IJavaElement[] otherElements, Binding elementBinding, int accuracy, MatchLocator locator) throws CoreException {
if (this.isDeclarationOfReferencedTypesPattern) {
if ((element = findElement(element, accuracy)) != null)
reportDeclaration(reference, element, locator, ((DeclarationOfReferencedTypesPattern) this.pattern).knownTypes);
return;
}
// Create search match
TypeReferenceMatch refMatch = locator.newTypeReferenceMatch(element, elementBinding, accuracy, reference);
refMatch.setLocalElement(localElement);
refMatch.setOtherElements(otherElements);
this.match = refMatch;
// Report match depending on reference type
if (reference instanceof QualifiedNameReference)
matchReportReference((QualifiedNameReference) reference, element, elementBinding, accuracy, locator);
else if (reference instanceof QualifiedTypeReference)
matchReportReference((QualifiedTypeReference) reference, element, elementBinding, accuracy, locator);
else if (reference instanceof ArrayTypeReference)
matchReportReference((ArrayTypeReference) reference, element, elementBinding, accuracy, locator);
else {
TypeBinding typeBinding = reference instanceof Expression ? ((Expression)reference).resolvedType : null;
if (typeBinding != null) {
matchReportReference((Expression)reference, -1, typeBinding, locator);
return;
}
locator.report(match);
}
}
/**
* Reports the match of the given reference. Also provide a scope to look for possible local and other elements.
*/
protected void matchReportReference(ASTNode reference, IJavaElement element, Binding elementBinding, Scope scope, int accuracy, MatchLocator locator) throws CoreException {
if (scope == null || (scope.kind != Scope.BLOCK_SCOPE && scope.kind != Scope.METHOD_SCOPE)) {
matchReportReference(reference, element, elementBinding, accuracy, locator);
return;
}
// Look if some block scope local variable declarations include reference start position
BlockScope blockScope = (BlockScope) scope;
LocalDeclaration[] localDeclarations = blockScope.findLocalVariableDeclarations(reference.sourceStart);
IJavaElement localElement = null;
IJavaElement[] otherElements = null;
// Some local variable declaration are matching
if (localDeclarations != null) {
int length = localDeclarations.length;
// Set local element to first matching local declaration
int idx = 0;
for (; idx<length; idx++) {
if (localDeclarations[idx] == null) break;
if (reference.sourceStart == localDeclarations[idx].declarationSourceStart) {
localElement = locator.createHandle(localDeclarations[idx], element);
break;
}
if (idx>0 && localDeclarations[idx].sourceStart > reference.sourceStart) {
localElement = locator.createHandle(localDeclarations[idx-1], element);
break;
}
}
if (localElement == null && idx > 0) {
if (reference.sourceEnd < localDeclarations[idx-1].declarationEnd) {
localElement = locator.createHandle(localDeclarations[idx-1], element);
}
}
// Store other local variable declarations in other elements
int size = 0;
for (int j=1; j<length; j++) {
if (localDeclarations[j] == null) break;
if (reference.sourceStart == localDeclarations[j].declarationSourceStart) {
if (otherElements == null) {
otherElements = new IJavaElement[length-j];
}
otherElements[size++] = locator.createHandle(localDeclarations[j], element);
}
}
if (size > 0 && size != (length-1)) {
System.arraycopy(otherElements, 0, otherElements = new IJavaElement[size], 0, size);
}
}
// Report match with local and other elements if any
matchReportReference(reference, element, localElement, otherElements, elementBinding, accuracy, locator);
}
protected void matchReportReference(QualifiedNameReference qNameRef, IJavaElement element, Binding elementBinding, int accuracy, MatchLocator locator) throws CoreException {
Binding binding = qNameRef.binding;
TypeBinding typeBinding = null;
int lastIndex = qNameRef.tokens.length - 1;
switch (qNameRef.bits & ASTNode.RestrictiveFlagMASK) {
case Binding.FIELD : // reading a field
typeBinding = qNameRef.actualReceiverType;
lastIndex -= qNameRef.otherBindings == null ? 1 : qNameRef.otherBindings.length + 1;
break;
case Binding.TYPE : //=============only type ==============
if (binding instanceof TypeBinding)
typeBinding = (TypeBinding) binding;
break;
case Binding.VARIABLE : //============unbound cases===========
case Binding.TYPE | Binding.VARIABLE :
if (binding instanceof ProblemReferenceBinding) {
typeBinding = (TypeBinding) binding;
} else if (binding instanceof ProblemFieldBinding) {
typeBinding = qNameRef.actualReceiverType;
lastIndex -= qNameRef.otherBindings == null ? 1 : qNameRef.otherBindings.length + 1;
} else if (binding instanceof ProblemBinding) {
typeBinding = ((ProblemBinding) binding).searchType;
}
break;
}
if (typeBinding instanceof ProblemReferenceBinding) {
ProblemReferenceBinding pbBinding = (ProblemReferenceBinding) typeBinding;
typeBinding = pbBinding.closestMatch();
lastIndex = pbBinding.compoundName.length - 1;
}
// Create search match to report
if (this.match == null) {
this.match = locator.newTypeReferenceMatch(element, elementBinding, accuracy, qNameRef);
}
// try to match all enclosing types for which the token matches as well.
if (typeBinding instanceof ReferenceBinding) {
ReferenceBinding refBinding = (ReferenceBinding) typeBinding;
while (refBinding != null && lastIndex >= 0) {
if (resolveLevelForType(refBinding) == ACCURATE_MATCH) {
if (locator.encloses(element)) {
long[] positions = qNameRef.sourcePositions;
// index now depends on pattern type signature
int index = lastIndex;
if (this.pattern.qualification != null) {
index = lastIndex - this.pattern.segmentsSize;
}
if (index < 0) index = 0;
int start = (int) ((positions[index]) >>> 32);
int end = (int) positions[lastIndex];
match.setOffset(start);
match.setLength(end-start+1);
// Look if there's a need to special report for parameterized type
matchReportReference(qNameRef, lastIndex, refBinding, locator);
}
return;
}
lastIndex--;
refBinding = refBinding.enclosingType();
}
}
locator.reportAccurateTypeReference(match, qNameRef, this.pattern.simpleName);
}
protected void matchReportReference(QualifiedTypeReference qTypeRef, IJavaElement element, Binding elementBinding, int accuracy, MatchLocator locator) throws CoreException {
TypeBinding typeBinding = qTypeRef.resolvedType;
int lastIndex = qTypeRef.tokens.length - 1;
if (typeBinding instanceof ArrayBinding)
typeBinding = ((ArrayBinding) typeBinding).leafComponentType;
if (typeBinding instanceof ProblemReferenceBinding) {
ProblemReferenceBinding pbBinding = (ProblemReferenceBinding) typeBinding;
typeBinding = pbBinding.closestMatch();
lastIndex = pbBinding.compoundName.length - 1;
}
// Create search match to report
if (this.match == null) {
this.match = locator.newTypeReferenceMatch(element, elementBinding, accuracy, qTypeRef);
}
// try to match all enclosing types for which the token matches as well
if (typeBinding instanceof ReferenceBinding) {
ReferenceBinding refBinding = (ReferenceBinding) typeBinding;
while (refBinding != null && lastIndex >= 0) {
if (resolveLevelForType(refBinding) != IMPOSSIBLE_MATCH) {
if (locator.encloses(element)) {
long[] positions = qTypeRef.sourcePositions;
// index now depends on pattern type signature
int index = lastIndex;
if (this.pattern.qualification != null) {
index = lastIndex - this.pattern.segmentsSize;
}
if (index < 0) index = 0;
int start = (int) ((positions[index]) >>> 32);
int end = (int) positions[lastIndex];
match.setOffset(start);
match.setLength(end-start+1);
// Look if there's a need to special report for parameterized type
matchReportReference(qTypeRef, lastIndex, refBinding, locator);
}
return;
}
lastIndex--;
refBinding = refBinding.enclosingType();
}
}
locator.reportAccurateTypeReference(match, qTypeRef, this.pattern.simpleName);
}
void matchReportReference(Expression expr, int lastIndex, TypeBinding refBinding, MatchLocator locator) throws CoreException {
// Look if there's a need to special report for parameterized type
if (refBinding.isParameterizedType() || refBinding.isRawType()) {
// Try to refine accuracy
ParameterizedTypeBinding parameterizedBinding = (ParameterizedTypeBinding)refBinding;
updateMatch(parameterizedBinding, this.pattern.getTypeArguments(), this.pattern.hasTypeParameters(), 0, locator);
// See whether it is necessary to report or not
if (match.getRule() == 0) return; // impossible match
boolean report = (this.isErasureMatch && match.isErasure()) || (this.isEquivalentMatch && match.isEquivalent()) || match.isExact();
if (!report) return;
// Make a special report for parameterized types if necessary
if (refBinding.isParameterizedType() && this.pattern.hasTypeArguments()) {
TypeReference typeRef = null;
TypeReference[] typeArguments = null;
if (expr instanceof ParameterizedQualifiedTypeReference) {
typeRef = (ParameterizedQualifiedTypeReference) expr;
typeArguments = ((ParameterizedQualifiedTypeReference) expr).typeArguments[lastIndex];
}
else if (expr instanceof ParameterizedSingleTypeReference) {
typeRef = (ParameterizedSingleTypeReference) expr;
typeArguments = ((ParameterizedSingleTypeReference) expr).typeArguments;
}
if (typeRef != null) {
locator.reportAccurateParameterizedTypeReference(match, typeRef, lastIndex, typeArguments);
return;
}
}
} else if (this.pattern.hasTypeArguments()) { // binding has no type params, compatible erasure if pattern does
match.setRule(SearchPattern.R_ERASURE_MATCH);
}
// Report match
if (expr instanceof ArrayTypeReference) {
locator.reportAccurateTypeReference(match, expr, this.pattern.simpleName);
return;
}
if (refBinding.isLocalType()) {
// see bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=82673
LocalTypeBinding local = (LocalTypeBinding) refBinding;
IJavaElement focus = ((InternalSearchPattern)pattern).focus;
if (focus != null && local.enclosingMethod != null && focus.getParent().getElementType() == IJavaElement.METHOD) {
IMethod method = (IMethod) focus.getParent();
if (!CharOperation.equals(local.enclosingMethod.selector, method.getElementName().toCharArray())) {
return;
}
}
}
locator.report(match);
}
protected int referenceType() {
return IJavaElement.TYPE;
}
protected void reportDeclaration(ASTNode reference, IJavaElement element, MatchLocator locator, SimpleSet knownTypes) throws CoreException {
int maxType = -1;
TypeBinding typeBinding = null;
if (reference instanceof TypeReference) {
typeBinding = ((TypeReference) reference).resolvedType;
maxType = Integer.MAX_VALUE;
} else if (reference instanceof QualifiedNameReference) {
QualifiedNameReference qNameRef = (QualifiedNameReference) reference;
Binding binding = qNameRef.binding;
maxType = qNameRef.tokens.length - 1;
switch (qNameRef.bits & ASTNode.RestrictiveFlagMASK) {
case Binding.FIELD : // reading a field
typeBinding = qNameRef.actualReceiverType;
maxType -= qNameRef.otherBindings == null ? 1 : qNameRef.otherBindings.length + 1;
break;
case Binding.TYPE : //=============only type ==============
if (binding instanceof TypeBinding)
typeBinding = (TypeBinding) binding;
break;
case Binding.VARIABLE : //============unbound cases===========
case Binding.TYPE | Binding.VARIABLE :
if (binding instanceof ProblemFieldBinding) {
typeBinding = qNameRef.actualReceiverType;
maxType -= qNameRef.otherBindings == null ? 1 : qNameRef.otherBindings.length + 1;
} else if (binding instanceof ProblemBinding) {
ProblemBinding pbBinding = (ProblemBinding) binding;
typeBinding = pbBinding.searchType; // second chance with recorded type so far
char[] partialQualifiedName = pbBinding.name;
maxType = CharOperation.occurencesOf('.', partialQualifiedName) - 1; // index of last bound token is one before the pb token
if (typeBinding == null || maxType < 0) return;
}
break;
}
} else if (reference instanceof SingleNameReference) {
typeBinding = (TypeBinding) ((SingleNameReference) reference).binding;
maxType = 1;
}
if (typeBinding instanceof ArrayBinding)
typeBinding = ((ArrayBinding) typeBinding).leafComponentType;
if (typeBinding == null || typeBinding instanceof BaseTypeBinding) return;
if (typeBinding instanceof ProblemReferenceBinding) {
ReferenceBinding original = ((ProblemReferenceBinding) typeBinding).closestMatch();
if (original == null) return; // original may not be set (bug 71279)
typeBinding = original;
}
typeBinding = typeBinding.erasure();
reportDeclaration((ReferenceBinding) typeBinding, maxType, locator, knownTypes);
}
protected void reportDeclaration(ReferenceBinding typeBinding, int maxType, MatchLocator locator, SimpleSet knownTypes) throws CoreException {
IType type = locator.lookupType(typeBinding);
if (type == null) return; // case of a secondary type
IResource resource = type.getResource();
boolean isBinary = type.isBinary();
IBinaryType info = null;
if (isBinary) {
if (resource == null)
resource = type.getJavaProject().getProject();
info = locator.getBinaryInfo((org.aspectj.org.eclipse.jdt.internal.core.ClassFile) type.getClassFile(), resource);
}
while (maxType >= 0 && type != null) {
if (!knownTypes.includes(type)) {
if (isBinary) {
locator.reportBinaryMemberDeclaration(resource, type, typeBinding, info, SearchMatch.A_ACCURATE);
} else {
if (typeBinding instanceof ParameterizedTypeBinding)
typeBinding = ((ParameterizedTypeBinding) typeBinding).genericType();
ClassScope scope = ((SourceTypeBinding) typeBinding).scope;
if (scope != null) {
TypeDeclaration typeDecl = scope.referenceContext;
int offset = typeDecl.sourceStart;
match = new TypeDeclarationMatch(((JavaElement) type).resolved(typeBinding), SearchMatch.A_ACCURATE, offset, typeDecl.sourceEnd-offset+1, locator.getParticipant(), resource);
locator.report(match);
}
}
knownTypes.add(type);
}
typeBinding = typeBinding.enclosingType();
IJavaElement parent = type.getParent();
if (parent instanceof IType) {
type = (IType)parent;
} else {
type = null;
}
maxType--;
}
}
public int resolveLevel(ASTNode node) {
if (node instanceof TypeReference)
return resolveLevel((TypeReference) node);
if (node instanceof NameReference)
return resolveLevel((NameReference) node);
// if (node instanceof ImportReference) - Not called when resolve is true, see MatchingNodeSet.reportMatching(unit)
return IMPOSSIBLE_MATCH;
}
public int resolveLevel(Binding binding) {
if (binding == null) return INACCURATE_MATCH;
if (!(binding instanceof TypeBinding)) return IMPOSSIBLE_MATCH;
TypeBinding typeBinding = (TypeBinding) binding;
if (typeBinding instanceof ArrayBinding)
typeBinding = ((ArrayBinding) typeBinding).leafComponentType;
if (typeBinding instanceof ProblemReferenceBinding)
typeBinding = ((ProblemReferenceBinding) typeBinding).closestMatch();
if (((InternalSearchPattern) this.pattern).focus instanceof IType && typeBinding instanceof ReferenceBinding) {
IPackageFragment pkg = ((IType) ((InternalSearchPattern) this.pattern).focus).getPackageFragment();
// check that type is located inside this instance of a package fragment
if (!PackageReferenceLocator.isDeclaringPackageFragment(pkg, (ReferenceBinding) typeBinding))
return IMPOSSIBLE_MATCH;
}
return resolveLevelForTypeOrEnclosingTypes(this.pattern.simpleName, this.pattern.qualification, typeBinding);
}
protected int resolveLevel(NameReference nameRef) {
Binding binding = nameRef.binding;
if (nameRef instanceof SingleNameReference) {
if (binding instanceof ProblemReferenceBinding)
binding = ((ProblemReferenceBinding) binding).closestMatch();
if (binding instanceof ReferenceBinding)
return resolveLevelForType((ReferenceBinding) binding);
return binding == null || binding instanceof ProblemBinding ? INACCURATE_MATCH : IMPOSSIBLE_MATCH;
}
TypeBinding typeBinding = null;
QualifiedNameReference qNameRef = (QualifiedNameReference) nameRef;
switch (qNameRef.bits & ASTNode.RestrictiveFlagMASK) {
case Binding.FIELD : // reading a field
if (qNameRef.tokens.length < (qNameRef.otherBindings == null ? 2 : qNameRef.otherBindings.length + 2))
return IMPOSSIBLE_MATCH; // must be at least A.x
typeBinding = nameRef.actualReceiverType;
break;
case Binding.LOCAL : // reading a local variable
return IMPOSSIBLE_MATCH; // no type match in it
case Binding.TYPE : //=============only type ==============
if (binding instanceof TypeBinding)
typeBinding = (TypeBinding) binding;
break;
/*
* Handling of unbound qualified name references. The match may reside in the resolved fragment,
* which is recorded inside the problem binding, along with the portion of the name until it became a problem.
*/
case Binding.VARIABLE : //============unbound cases===========
case Binding.TYPE | Binding.VARIABLE :
if (binding instanceof ProblemReferenceBinding) {
typeBinding = (TypeBinding) binding;
} else if (binding instanceof ProblemFieldBinding) {
if (qNameRef.tokens.length < (qNameRef.otherBindings == null ? 2 : qNameRef.otherBindings.length + 2))
return IMPOSSIBLE_MATCH; // must be at least A.x
typeBinding = nameRef.actualReceiverType;
} else if (binding instanceof ProblemBinding) {
ProblemBinding pbBinding = (ProblemBinding) binding;
if (CharOperation.occurencesOf('.', pbBinding.name) <= 0) // index of last bound token is one before the pb token
return INACCURATE_MATCH;
typeBinding = pbBinding.searchType;
}
break;
}
return resolveLevel(typeBinding);
}
protected int resolveLevel(TypeReference typeRef) {
TypeBinding typeBinding = typeRef.resolvedType;
if (typeBinding instanceof ArrayBinding)
typeBinding = ((ArrayBinding) typeBinding).leafComponentType;
if (typeBinding instanceof ProblemReferenceBinding)
typeBinding = ((ProblemReferenceBinding) typeBinding).closestMatch();
if (typeRef instanceof SingleTypeReference) {
return resolveLevelForType(typeBinding);
} else
return resolveLevelForTypeOrEnclosingTypes(this.pattern.simpleName, this.pattern.qualification, typeBinding);
}
/* (non-Javadoc)
* Resolve level for type with a given binding.
* This is just an helper to avoid call of method with all parameters...
*/
protected int resolveLevelForType(TypeBinding typeBinding) {
return resolveLevelForType(
this.pattern.simpleName,
this.pattern.qualification,
this.pattern.getTypeArguments(),
0,
typeBinding);
}
/**
* Returns whether the given type binding or one of its enclosing types
* matches the given simple name pattern and qualification pattern.
* Returns ACCURATE_MATCH if it does.
* Returns INACCURATE_MATCH if resolve failed.
* Returns IMPOSSIBLE_MATCH if it doesn't.
*/
protected int resolveLevelForTypeOrEnclosingTypes(char[] simpleNamePattern, char[] qualificationPattern, TypeBinding binding) {
if (binding == null) return INACCURATE_MATCH;
if (binding instanceof ReferenceBinding) {
ReferenceBinding type = (ReferenceBinding) binding;
while (type != null) {
int level = resolveLevelForType(type);
if (level != IMPOSSIBLE_MATCH) return level;
type = type.enclosingType();
}
}
return IMPOSSIBLE_MATCH;
}
public String toString() {
return "Locator for " + this.pattern.toString(); //$NON-NLS-1$
}
}