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org.eclipse.jdt.internal.codeassist.InternalExtendedCompletionContext Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2008, 2014 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
* Stephan Herrmann - Contribution for
* Bug 392384 - [1.8][compiler][null] Restore nullness info from type annotations in class files
* Bug 440477 - [null] Infrastructure for feeding external annotations into compilation
*******************************************************************************/
package org.eclipse.jdt.internal.codeassist;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.ITypeRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jdt.core.WorkingCopyOwner;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.codeassist.complete.CompletionNodeDetector;
import org.eclipse.jdt.internal.codeassist.complete.CompletionParser;
import org.eclipse.jdt.internal.codeassist.impl.AssistCompilationUnit;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration;
import org.eclipse.jdt.internal.compiler.ast.AbstractVariableDeclaration;
import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
import org.eclipse.jdt.internal.compiler.ast.Initializer;
import org.eclipse.jdt.internal.compiler.ast.LambdaExpression;
import org.eclipse.jdt.internal.compiler.ast.LocalDeclaration;
import org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference;
import org.eclipse.jdt.internal.compiler.ast.SingleTypeReference;
import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
import org.eclipse.jdt.internal.compiler.ast.TypeParameter;
import org.eclipse.jdt.internal.compiler.ast.TypeReference;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.env.ITypeAnnotationWalker;
import org.eclipse.jdt.internal.compiler.impl.ReferenceContext;
import org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.Binding;
import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
import org.eclipse.jdt.internal.compiler.lookup.ClassScope;
import org.eclipse.jdt.internal.compiler.lookup.FieldBinding;
import org.eclipse.jdt.internal.compiler.lookup.ImportBinding;
import org.eclipse.jdt.internal.compiler.lookup.InvocationSite;
import org.eclipse.jdt.internal.compiler.lookup.LocalVariableBinding;
import org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment;
import org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
import org.eclipse.jdt.internal.compiler.lookup.MethodScope;
import org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import org.eclipse.jdt.internal.compiler.lookup.Scope;
import org.eclipse.jdt.internal.compiler.lookup.SignatureWrapper;
import org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding;
import org.eclipse.jdt.internal.compiler.problem.AbortCompilation;
import org.eclipse.jdt.internal.compiler.util.ObjectVector;
import org.eclipse.jdt.internal.core.CompilationUnitElementInfo;
import org.eclipse.jdt.internal.core.JavaElement;
import org.eclipse.jdt.internal.core.LocalVariable;
import org.eclipse.jdt.internal.core.util.Util;
@SuppressWarnings({"rawtypes", "unchecked"})
public class InternalExtendedCompletionContext {
private static Util.BindingsToNodesMap EmptyNodeMap = new Util.BindingsToNodesMap() {
public ASTNode get(Binding binding) {
return null;
}
};
private InternalCompletionContext completionContext;
// static data
private ITypeRoot typeRoot;
private CompilationUnitDeclaration compilationUnitDeclaration;
private LookupEnvironment lookupEnvironment;
private Scope assistScope;
private ASTNode assistNode;
private ASTNode assistNodeParent;
private WorkingCopyOwner owner;
private CompletionParser parser;
// computed data
private boolean hasComputedVisibleElementBindings;
private ObjectVector visibleLocalVariables;
private ObjectVector visibleFields;
private ObjectVector visibleMethods;
private boolean hasComputedEnclosingJavaElements;
private Map bindingsToHandles;
private Map nodesWithProblemsToHandles;
private ICompilationUnit compilationUnit;
public InternalExtendedCompletionContext(
InternalCompletionContext completionContext,
ITypeRoot typeRoot,
CompilationUnitDeclaration compilationUnitDeclaration,
LookupEnvironment lookupEnvironment,
Scope assistScope,
ASTNode assistNode,
ASTNode assistNodeParent,
WorkingCopyOwner owner,
CompletionParser parser) {
this.completionContext = completionContext;
this.typeRoot = typeRoot;
this.compilationUnitDeclaration = compilationUnitDeclaration;
this.lookupEnvironment = lookupEnvironment;
this.assistScope = assistScope;
this.assistNode = assistNode;
this.assistNodeParent = assistNodeParent;
this.owner = owner;
this.parser = parser;
}
private void computeEnclosingJavaElements() {
this.hasComputedEnclosingJavaElements = true;
if (this.typeRoot == null) return;
if (this.typeRoot.getElementType() == IJavaElement.COMPILATION_UNIT) {
ICompilationUnit original = (org.eclipse.jdt.core.ICompilationUnit)this.typeRoot;
HashMap handleToBinding = new HashMap();
HashMap bindingToHandle = new HashMap();
HashMap nodeWithProblemToHandle = new HashMap();
HashMap handleToInfo = new HashMap();
org.eclipse.jdt.core.ICompilationUnit handle = new AssistCompilationUnit(original, this.owner, handleToBinding, handleToInfo);
CompilationUnitElementInfo info = new CompilationUnitElementInfo();
handleToInfo.put(handle, info);
CompletionUnitStructureRequestor structureRequestor =
new CompletionUnitStructureRequestor(
handle,
info,
this.parser,
this.assistNode,
handleToBinding,
bindingToHandle,
nodeWithProblemToHandle,
handleToInfo);
CompletionElementNotifier notifier =
new CompletionElementNotifier(
structureRequestor,
true,
this.assistNode);
notifier.notifySourceElementRequestor(
this.compilationUnitDeclaration,
this.compilationUnitDeclaration.sourceStart,
this.compilationUnitDeclaration.sourceEnd,
false,
this.parser.sourceEnds,
new HashMap());
this.bindingsToHandles = bindingToHandle;
this.nodesWithProblemsToHandles = nodeWithProblemToHandle;
this.compilationUnit = handle;
}
}
private void computeVisibleElementBindings() {
CompilationUnitDeclaration previousUnitBeingCompleted = this.lookupEnvironment.unitBeingCompleted;
this.lookupEnvironment.unitBeingCompleted = this.compilationUnitDeclaration;
try {
this.hasComputedVisibleElementBindings = true;
Scope scope = this.assistScope;
ASTNode astNode = this.assistNode;
boolean notInJavadoc = this.completionContext.javadoc == 0;
this.visibleLocalVariables = new ObjectVector();
this.visibleFields = new ObjectVector();
this.visibleMethods = new ObjectVector();
ReferenceContext referenceContext = scope.referenceContext();
if (referenceContext instanceof AbstractMethodDeclaration || referenceContext instanceof LambdaExpression) {
// completion is inside a method body
searchVisibleVariablesAndMethods(scope, this.visibleLocalVariables, this.visibleFields, this.visibleMethods, notInJavadoc);
} else if (referenceContext instanceof TypeDeclaration) {
TypeDeclaration typeDeclaration = (TypeDeclaration) referenceContext;
FieldDeclaration[] fields = typeDeclaration.fields;
if (fields != null) {
done : for (int i = 0; i < fields.length; i++) {
if (fields[i] instanceof Initializer) {
Initializer initializer = (Initializer) fields[i];
if (initializer.block.sourceStart <= astNode.sourceStart &&
astNode.sourceStart < initializer.bodyEnd) {
// completion is inside an initializer
searchVisibleVariablesAndMethods(scope, this.visibleLocalVariables, this.visibleFields, this.visibleMethods, notInJavadoc);
break done;
}
} else {
FieldDeclaration fieldDeclaration = fields[i];
if (fieldDeclaration.initialization != null && fieldDeclaration.binding != null) {
boolean isInsideInitializer = false;
if (fieldDeclaration.initialization.sourceEnd > 0) {
if (fieldDeclaration.initialization.sourceStart <= astNode.sourceStart &&
astNode.sourceEnd <= fieldDeclaration.initialization.sourceEnd) {
// completion is inside a field initializer
isInsideInitializer = true;
}
} else { // The sourceEnd may not yet be set
CompletionNodeDetector detector = new CompletionNodeDetector(this.assistNode, fieldDeclaration.initialization);
if (detector.containsCompletionNode()) {
// completion is inside a field initializer
isInsideInitializer = true;
}
}
if (isInsideInitializer) {
searchVisibleVariablesAndMethods(scope, this.visibleLocalVariables, this.visibleFields, this.visibleMethods, notInJavadoc);
// remove this field from visibleFields list because completion is being asked in its
// intialization and so this has not yet been declared successfully.
if (this.visibleFields.size > 0 && this.visibleFields.contains(fieldDeclaration.binding)) {
this.visibleFields.remove(fieldDeclaration.binding);
}
int count = 0;
while (count < this.visibleFields.size) {
FieldBinding visibleField = (FieldBinding)this.visibleFields.elementAt(count);
if (visibleField.id > fieldDeclaration.binding.id) {
this.visibleFields.remove(visibleField);
continue;
}
count++;
}
break done;
}
}
}
}
}
}
} finally {
this.lookupEnvironment.unitBeingCompleted = previousUnitBeingCompleted;
}
}
public IJavaElement getEnclosingElement() {
try {
if (!this.hasComputedEnclosingJavaElements) {
computeEnclosingJavaElements();
}
if (this.compilationUnit == null) return null;
IJavaElement enclosingElement = this.compilationUnit.getElementAt(this.completionContext.offset);
return enclosingElement == null ? this.compilationUnit : enclosingElement;
} catch (JavaModelException e) {
Util.log(e, "Cannot compute enclosing element"); //$NON-NLS-1$
return null;
}
}
private JavaElement getJavaElement(LocalVariableBinding binding) {
LocalDeclaration local = binding.declaration;
JavaElement parent = null;
ReferenceContext referenceContext = binding.declaringScope.isLambdaSubscope() ? binding.declaringScope.namedMethodScope().referenceContext() : binding.declaringScope.referenceContext();
if (referenceContext instanceof AbstractMethodDeclaration) {
AbstractMethodDeclaration methodDeclaration = (AbstractMethodDeclaration) referenceContext;
parent = this.getJavaElementOfCompilationUnit(methodDeclaration, methodDeclaration.binding);
} else if (referenceContext instanceof TypeDeclaration){
// Local variable is declared inside an initializer
TypeDeclaration typeDeclaration = (TypeDeclaration) referenceContext;
JavaElement type = this.getJavaElementOfCompilationUnit(typeDeclaration, typeDeclaration.binding);
parent = Util.getUnresolvedJavaElement(local.sourceStart, local.sourceEnd, type);
}
if (parent == null) return null;
return new LocalVariable(
parent,
new String(local.name),
local.declarationSourceStart,
local.declarationSourceEnd,
local.sourceStart,
local.sourceEnd,
local.type == null ? Signature.createTypeSignature(binding.type.signableName(), true) : Util.typeSignature(local.type),
binding.declaration.annotations,
local.modifiers,
local.getKind() == AbstractVariableDeclaration.PARAMETER);
}
private JavaElement getJavaElementOfCompilationUnit(Binding binding) {
if (!this.hasComputedEnclosingJavaElements) {
computeEnclosingJavaElements();
}
if (this.bindingsToHandles == null) return null;
return (JavaElement)this.bindingsToHandles.get(binding);
}
private JavaElement getJavaElementOfCompilationUnit(ASTNode node, Binding binding) {
if (!this.hasComputedEnclosingJavaElements) {
computeEnclosingJavaElements();
}
if (binding != null) {
if (this.bindingsToHandles == null) return null;
return (JavaElement)this.bindingsToHandles.get(binding);
} else {
if (this.nodesWithProblemsToHandles == null) return null;
return (JavaElement)this.nodesWithProblemsToHandles.get(node);
}
}
private TypeBinding getTypeFromSignature(String typeSignature, Scope scope) {
TypeBinding assignableTypeBinding = null;
TypeVariableBinding[] typeVariables = Binding.NO_TYPE_VARIABLES;
ReferenceContext referenceContext = scope.referenceContext();
if (referenceContext instanceof AbstractMethodDeclaration) {
AbstractMethodDeclaration methodDeclaration = (AbstractMethodDeclaration) referenceContext;
TypeParameter[] typeParameters = methodDeclaration.typeParameters();
if (typeParameters != null && typeParameters.length > 0) {
int length = typeParameters.length;
int count = 0;
typeVariables = new TypeVariableBinding[length];
for (int i = 0; i < length; i++) {
if (typeParameters[i].binding != null) {
typeVariables[count++] = typeParameters[i].binding;
}
}
if (count != length) {
System.arraycopy(typeVariables, 0, typeVariables = new TypeVariableBinding[count], 0, count);
}
}
}
CompilationUnitDeclaration previousUnitBeingCompleted = this.lookupEnvironment.unitBeingCompleted;
this.lookupEnvironment.unitBeingCompleted = this.compilationUnitDeclaration;
try {
SignatureWrapper wrapper = new SignatureWrapper(replacePackagesDot(typeSignature.toCharArray()));
// FIXME(stephan): do we interpret type annotations here?
assignableTypeBinding = this.lookupEnvironment.getTypeFromTypeSignature(wrapper, typeVariables, this.assistScope.enclosingClassScope().referenceContext.binding, null, ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER);
assignableTypeBinding = BinaryTypeBinding.resolveType(assignableTypeBinding, this.lookupEnvironment, true);
} catch (AbortCompilation e) {
assignableTypeBinding = null;
} finally {
this.lookupEnvironment.unitBeingCompleted = previousUnitBeingCompleted;
}
return assignableTypeBinding;
}
private char[] replacePackagesDot(char[] signature) {
boolean replace = true;
int length = signature.length;
for (int i = 0; i < length; i++) {
switch (signature[i]) {
case '.':
if (replace) signature[i] = '/';
break;
case '<':
replace = true;
break;
case '>':
replace = false;
break;
}
}
return signature;
}
public IJavaElement[] getVisibleElements(String typeSignature) {
if (this.assistScope == null) return new IJavaElement[0];
if (!this.hasComputedVisibleElementBindings) {
computeVisibleElementBindings();
}
TypeBinding assignableTypeBinding = null;
if (typeSignature != null) {
assignableTypeBinding = getTypeFromSignature(typeSignature, this.assistScope);
if (assignableTypeBinding == null) return new IJavaElement[0];
}
int length = this.visibleLocalVariables.size() + this.visibleFields.size() + this.visibleMethods.size();
if (length == 0) return new IJavaElement[0];
IJavaElement[] result = new IJavaElement[length];
int elementCount = 0;
int size = this.visibleLocalVariables.size();
if (size > 0) {
next : for (int i = 0; i < size; i++) {
try {
LocalVariableBinding binding = (LocalVariableBinding) this.visibleLocalVariables.elementAt(i);
if (binding.type == null || (assignableTypeBinding != null && !binding.type.isCompatibleWith(assignableTypeBinding))) continue next;
JavaElement localVariable = getJavaElement(binding);
if (localVariable != null) result[elementCount++] = localVariable;
} catch(AbortCompilation e) {
// log the exception and proceed
Util.logRepeatedMessage(e.getKey(), e);
}
}
}
size = this.visibleFields.size();
if (size > 0) {
next : for (int i = 0; i < size; i++) {
try {
FieldBinding binding = (FieldBinding) this.visibleFields.elementAt(i);
if (assignableTypeBinding != null && !binding.type.isCompatibleWith(assignableTypeBinding)) continue next;
if (this.assistScope.isDefinedInSameUnit(binding.declaringClass)) {
JavaElement field = getJavaElementOfCompilationUnit(binding);
if (field != null) result[elementCount++] = field;
} else {
JavaElement field = Util.getUnresolvedJavaElement(binding, this.owner, EmptyNodeMap);
if (field != null) result[elementCount++] = field.resolved(binding);
}
} catch(AbortCompilation e) {
// log the exception and proceed
Util.logRepeatedMessage(e.getKey(), e);
}
}
}
size = this.visibleMethods.size();
if (size > 0) {
next : for (int i = 0; i < size; i++) {
try {
MethodBinding binding = (MethodBinding) this.visibleMethods.elementAt(i);
if (assignableTypeBinding != null && !binding.returnType.isCompatibleWith(assignableTypeBinding)) continue next;
if (this.assistScope.isDefinedInSameUnit(binding.declaringClass)) {
JavaElement method = getJavaElementOfCompilationUnit(binding);
if (method != null) result[elementCount++] = method;
} else {
JavaElement method = Util.getUnresolvedJavaElement(binding, this.owner, EmptyNodeMap);
if (method != null) result[elementCount++] = method.resolved(binding);
}
} catch(AbortCompilation e) {
// log the exception and proceed
Util.logRepeatedMessage(e.getKey(), e);
}
}
}
if (elementCount != result.length) {
System.arraycopy(result, 0, result = new IJavaElement[elementCount], 0, elementCount);
}
return result;
}
private void searchVisibleFields(
FieldBinding[] fields,
ReferenceBinding receiverType,
Scope scope,
InvocationSite invocationSite,
Scope invocationScope,
boolean onlyStaticFields,
ObjectVector localsFound,
ObjectVector fieldsFound) {
ObjectVector newFieldsFound = new ObjectVector();
// Inherited fields which are hidden by subclasses are filtered out
// No visibility checks can be performed without the scope & invocationSite
next : for (int f = fields.length; --f >= 0;) {
FieldBinding field = fields[f];
if (field.isSynthetic()) continue next;
if (onlyStaticFields && !field.isStatic()) continue next;
if (!field.canBeSeenBy(receiverType, invocationSite, scope)) continue next;
for (int i = fieldsFound.size; --i >= 0;) {
FieldBinding otherField = (FieldBinding) fieldsFound.elementAt(i);
if (CharOperation.equals(field.name, otherField.name, true)) {
continue next;
}
}
for (int l = localsFound.size; --l >= 0;) {
LocalVariableBinding local = (LocalVariableBinding) localsFound.elementAt(l);
if (CharOperation.equals(field.name, local.name, true)) {
continue next;
}
}
newFieldsFound.add(field);
}
fieldsFound.addAll(newFieldsFound);
}
private void searchVisibleFields(
ReferenceBinding receiverType,
Scope scope,
InvocationSite invocationSite,
Scope invocationScope,
boolean onlyStaticFields,
boolean notInJavadoc,
ObjectVector localsFound,
ObjectVector fieldsFound) {
ReferenceBinding currentType = receiverType;
ReferenceBinding[] interfacesToVisit = null;
int nextPosition = 0;
do {
ReferenceBinding[] itsInterfaces = currentType.superInterfaces();
if (notInJavadoc && itsInterfaces != Binding.NO_SUPERINTERFACES) {
if (interfacesToVisit == null) {
interfacesToVisit = itsInterfaces;
nextPosition = interfacesToVisit.length;
} else {
int itsLength = itsInterfaces.length;
if (nextPosition + itsLength >= interfacesToVisit.length)
System.arraycopy(interfacesToVisit, 0, interfacesToVisit = new ReferenceBinding[nextPosition + itsLength + 5], 0, nextPosition);
nextInterface : for (int a = 0; a < itsLength; a++) {
ReferenceBinding next = itsInterfaces[a];
for (int b = 0; b < nextPosition; b++)
if (TypeBinding.equalsEquals(next, interfacesToVisit[b])) continue nextInterface;
interfacesToVisit[nextPosition++] = next;
}
}
}
FieldBinding[] fields = currentType.availableFields();
if(fields != null && fields.length > 0) {
searchVisibleFields(
fields,
receiverType,
scope,
invocationSite,
invocationScope,
onlyStaticFields,
localsFound,
fieldsFound);
}
currentType = currentType.superclass();
} while (notInJavadoc && currentType != null);
if (notInJavadoc && interfacesToVisit != null) {
for (int i = 0; i < nextPosition; i++) {
ReferenceBinding anInterface = interfacesToVisit[i];
FieldBinding[] fields = anInterface.availableFields();
if(fields != null) {
searchVisibleFields(
fields,
receiverType,
scope,
invocationSite,
invocationScope,
onlyStaticFields,
localsFound,
fieldsFound);
}
ReferenceBinding[] itsInterfaces = anInterface.superInterfaces();
if (itsInterfaces != Binding.NO_SUPERINTERFACES) {
int itsLength = itsInterfaces.length;
if (nextPosition + itsLength >= interfacesToVisit.length)
System.arraycopy(interfacesToVisit, 0, interfacesToVisit = new ReferenceBinding[nextPosition + itsLength + 5], 0, nextPosition);
nextInterface : for (int a = 0; a < itsLength; a++) {
ReferenceBinding next = itsInterfaces[a];
for (int b = 0; b < nextPosition; b++)
if (TypeBinding.equalsEquals(next, interfacesToVisit[b])) continue nextInterface;
interfacesToVisit[nextPosition++] = next;
}
}
}
}
}
private void searchVisibleInterfaceMethods(
ReferenceBinding[] itsInterfaces,
ReferenceBinding receiverType,
Scope scope,
InvocationSite invocationSite,
Scope invocationScope,
boolean onlyStaticMethods,
ObjectVector methodsFound) {
if (itsInterfaces != Binding.NO_SUPERINTERFACES) {
ReferenceBinding[] interfacesToVisit = itsInterfaces;
int nextPosition = interfacesToVisit.length;
for (int i = 0; i < nextPosition; i++) {
ReferenceBinding currentType = interfacesToVisit[i];
MethodBinding[] methods = currentType.availableMethods();
if(methods != null) {
searchVisibleLocalMethods(
methods,
receiverType,
scope,
invocationSite,
invocationScope,
onlyStaticMethods,
methodsFound);
}
itsInterfaces = currentType.superInterfaces();
if (itsInterfaces != null && itsInterfaces != Binding.NO_SUPERINTERFACES) {
int itsLength = itsInterfaces.length;
if (nextPosition + itsLength >= interfacesToVisit.length)
System.arraycopy(interfacesToVisit, 0, interfacesToVisit = new ReferenceBinding[nextPosition + itsLength + 5], 0, nextPosition);
nextInterface : for (int a = 0; a < itsLength; a++) {
ReferenceBinding next = itsInterfaces[a];
for (int b = 0; b < nextPosition; b++)
if (TypeBinding.equalsEquals(next, interfacesToVisit[b])) continue nextInterface;
interfacesToVisit[nextPosition++] = next;
}
}
}
}
}
private void searchVisibleLocalMethods(
MethodBinding[] methods,
ReferenceBinding receiverType,
Scope scope,
InvocationSite invocationSite,
Scope invocationScope,
boolean onlyStaticMethods,
ObjectVector methodsFound) {
ObjectVector newMethodsFound = new ObjectVector();
// Inherited methods which are hidden by subclasses are filtered out
// No visibility checks can be performed without the scope & invocationSite
next : for (int f = methods.length; --f >= 0;) {
MethodBinding method = methods[f];
if (method.isSynthetic()) continue next;
if (method.isDefaultAbstract()) continue next;
if (method.isConstructor()) continue next;
if (onlyStaticMethods && !method.isStatic()) continue next;
if (!method.canBeSeenBy(receiverType, invocationSite, scope)) continue next;
for (int i = methodsFound.size; --i >= 0;) {
MethodBinding otherMethod = (MethodBinding) methodsFound.elementAt(i);
if (method == otherMethod)
continue next;
if (CharOperation.equals(method.selector, otherMethod.selector, true)) {
if (this.lookupEnvironment.methodVerifier().isMethodSubsignature(otherMethod, method)) {
continue next;
}
}
}
newMethodsFound.add(method);
}
methodsFound.addAll(newMethodsFound);
}
private void searchVisibleMethods(
ReferenceBinding receiverType,
Scope scope,
InvocationSite invocationSite,
Scope invocationScope,
boolean onlyStaticMethods,
boolean notInJavadoc,
ObjectVector methodsFound) {
ReferenceBinding currentType = receiverType;
if (notInJavadoc) {
if (receiverType.isInterface()) {
searchVisibleInterfaceMethods(
new ReferenceBinding[]{currentType},
receiverType,
scope,
invocationSite,
invocationScope,
onlyStaticMethods,
methodsFound);
currentType = scope.getJavaLangObject();
}
}
boolean hasPotentialDefaultAbstractMethods = true;
while (currentType != null) {
MethodBinding[] methods = currentType.availableMethods();
if (methods != null) {
searchVisibleLocalMethods(
methods,
receiverType,
scope,
invocationSite,
invocationScope,
onlyStaticMethods,
methodsFound);
}
if (notInJavadoc &&
hasPotentialDefaultAbstractMethods &&
(currentType.isAbstract() ||
currentType.isTypeVariable() ||
currentType.isIntersectionType() ||
currentType.isEnum())){
ReferenceBinding[] superInterfaces = currentType.superInterfaces();
if (superInterfaces != null && currentType.isIntersectionType()) {
for (int i = 0; i < superInterfaces.length; i++) {
superInterfaces[i] = (ReferenceBinding)superInterfaces[i].capture(invocationScope, invocationSite.sourceStart(), invocationSite.sourceEnd());
}
}
searchVisibleInterfaceMethods(
superInterfaces,
receiverType,
scope,
invocationSite,
invocationScope,
onlyStaticMethods,
methodsFound);
} else {
hasPotentialDefaultAbstractMethods = false;
}
if(currentType.isParameterizedType()) {
currentType = ((ParameterizedTypeBinding)currentType).genericType().superclass();
} else {
currentType = currentType.superclass();
}
}
}
private void searchVisibleVariablesAndMethods(
Scope scope,
ObjectVector localsFound,
ObjectVector fieldsFound,
ObjectVector methodsFound,
boolean notInJavadoc) {
InvocationSite invocationSite = CompletionEngine.FakeInvocationSite;
boolean staticsOnly = false;
// need to know if we're in a static context (or inside a constructor)
Scope currentScope = scope;
done1 : while (true) { // done when a COMPILATION_UNIT_SCOPE is found
switch (currentScope.kind) {
case Scope.METHOD_SCOPE :
// handle the error case inside an explicit constructor call (see MethodScope>>findField)
MethodScope methodScope = (MethodScope) currentScope;
staticsOnly |= methodScope.isStatic | methodScope.isConstructorCall;
//$FALL-THROUGH$
case Scope.BLOCK_SCOPE :
BlockScope blockScope = (BlockScope) currentScope;
next : for (int i = 0, length = blockScope.locals.length; i < length; i++) {
LocalVariableBinding local = blockScope.locals[i];
if (local == null)
break next;
if (local.isSecret())
continue next;
// If the local variable declaration's initialization statement itself has the completion,
// then don't propose the local variable
if (local.declaration.initialization != null) {
/*(use this if-else block if it is found that local.declaration.initialization != null is not sufficient to
guarantee that proposal is being asked inside a local variable declaration's initializer)
if(local.declaration.initialization.sourceEnd > 0) {
if (this.assistNode.sourceEnd <= local.declaration.initialization.sourceEnd
&& this.assistNode.sourceStart >= local.declaration.initialization.sourceStart) {
continue next;
}
} else {
CompletionNodeDetector detector = new CompletionNodeDetector(
this.assistNode,
local.declaration.initialization);
if (detector.containsCompletionNode()) {
continue next;
}
}*/
continue next;
}
for (int f = 0; f < localsFound.size; f++) {
LocalVariableBinding otherLocal =
(LocalVariableBinding) localsFound.elementAt(f);
if (CharOperation.equals(otherLocal.name, local.name, true))
continue next;
}
localsFound.add(local);
}
break;
case Scope.COMPILATION_UNIT_SCOPE :
break done1;
}
currentScope = currentScope.parent;
}
staticsOnly = false;
currentScope = scope;
done2 : while (true) { // done when a COMPILATION_UNIT_SCOPE is found
switch (currentScope.kind) {
case Scope.METHOD_SCOPE :
// handle the error case inside an explicit constructor call (see MethodScope>>findField)
MethodScope methodScope = (MethodScope) currentScope;
staticsOnly |= methodScope.isStatic | methodScope.isConstructorCall;
break;
case Scope.CLASS_SCOPE :
ClassScope classScope = (ClassScope) currentScope;
SourceTypeBinding enclosingType = classScope.referenceContext.binding;
searchVisibleFields(
enclosingType,
classScope,
invocationSite,
scope,
staticsOnly,
notInJavadoc,
localsFound,
fieldsFound);
searchVisibleMethods(
enclosingType,
classScope,
invocationSite,
scope,
staticsOnly,
notInJavadoc,
methodsFound);
staticsOnly |= enclosingType.isStatic();
break;
case Scope.COMPILATION_UNIT_SCOPE :
break done2;
}
currentScope = currentScope.parent;
}
// search in static import
ImportBinding[] importBindings = scope.compilationUnitScope().imports;
for (int i = 0; i < importBindings.length; i++) {
ImportBinding importBinding = importBindings[i];
if(importBinding.isValidBinding() && importBinding.isStatic()) {
Binding binding = importBinding.resolvedImport;
if(binding != null && binding.isValidBinding()) {
if(importBinding.onDemand) {
if((binding.kind() & Binding.TYPE) != 0) {
searchVisibleFields(
(ReferenceBinding)binding,
scope,
invocationSite,
scope,
staticsOnly,
notInJavadoc,
localsFound,
fieldsFound);
searchVisibleMethods(
(ReferenceBinding)binding,
scope,
invocationSite,
scope,
staticsOnly,
notInJavadoc,
methodsFound);
}
} else {
if ((binding.kind() & Binding.FIELD) != 0) {
searchVisibleFields(
new FieldBinding[]{(FieldBinding)binding},
((FieldBinding)binding).declaringClass,
scope,
invocationSite,
scope,
staticsOnly,
localsFound,
fieldsFound);
} else if ((binding.kind() & Binding.METHOD) != 0) {
MethodBinding methodBinding = (MethodBinding)binding;
searchVisibleLocalMethods(
methodBinding.declaringClass.getMethods(methodBinding.selector),
methodBinding.declaringClass,
scope,
invocationSite,
scope,
true,
methodsFound);
}
}
}
}
}
}
public boolean canUseDiamond(String[] parameterTypes, char[] fullyQualifiedTypeName) {
TypeBinding guessedType = null;
char[][] cn = CharOperation.splitOn('.', fullyQualifiedTypeName);
Scope scope = this.assistScope;
if (scope.compilerOptions().sourceLevel < ClassFileConstants.JDK1_7) return false;
// If no LHS or return type expected, then we can safely use diamond
char[][] expectedTypekeys= this.completionContext.getExpectedTypesKeys();
if (expectedTypekeys == null || expectedTypekeys.length == 0)
return true;
// Next, find out whether any of the constructor parameters are the same as one of the
// class type variables. If yes, diamond cannot be used.
TypeReference ref;
if (cn.length == 1) {
ref = new SingleTypeReference(cn[0], 0);
} else {
ref = new QualifiedTypeReference(cn,new long[cn.length]);
}
switch (scope.kind) {
case Scope.METHOD_SCOPE :
case Scope.BLOCK_SCOPE :
guessedType = ref.resolveType((BlockScope)scope);
break;
case Scope.CLASS_SCOPE :
guessedType = ref.resolveType((ClassScope)scope);
break;
}
if (guessedType != null && guessedType.isValidBinding()) {
// the erasure must be used because guessedType can be a RawTypeBinding
guessedType = guessedType.erasure();
TypeVariableBinding[] typeVars = guessedType.typeVariables();
for (int i = 0; i < parameterTypes.length; i++) {
for (int j = 0; j < typeVars.length; j++) {
if (CharOperation.equals(parameterTypes[i].toCharArray(), typeVars[j].sourceName))
return false;
}
}
return true;
}
return false;
}
/**
* @see InternalCompletionContext#getCompletionNode()
*/
public ASTNode getCompletionNode() {
return this.assistNode;
}
/**
* @see InternalCompletionContext#getCompletionNodeParent()
*/
public ASTNode getCompletionNodeParent() {
// TODO Auto-generated method stub
return this.assistNodeParent;
}
public ObjectVector getVisibleLocalVariables() {
if (!this.hasComputedVisibleElementBindings) {
computeVisibleElementBindings();
}
return this.visibleLocalVariables;
}
public ObjectVector getVisibleFields() {
if (!this.hasComputedVisibleElementBindings) {
computeVisibleElementBindings();
}
return this.visibleFields;
}
public ObjectVector getVisibleMethods() {
if (!this.hasComputedVisibleElementBindings) {
computeVisibleElementBindings();
}
return this.visibleMethods;
}
}
