blob: 921f5e139a1a4f2c6e55ff91183a4a291d3cc141 [file] [log] [blame]
/*******************************************************************************
* 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.jdt.internal.codeassist;
import java.util.Locale;
import java.util.Map;
import org.eclipse.jdt.core.ICompletionRequestor;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.core.compiler.IProblem;
import org.eclipse.jdt.internal.codeassist.complete.*;
import org.eclipse.jdt.internal.codeassist.impl.AssistParser;
import org.eclipse.jdt.internal.codeassist.impl.Engine;
import org.eclipse.jdt.internal.codeassist.impl.Keywords;
import org.eclipse.jdt.internal.compiler.CompilationResult;
import org.eclipse.jdt.internal.compiler.DefaultErrorHandlingPolicies;
import org.eclipse.jdt.internal.compiler.ast.*;
import org.eclipse.jdt.internal.compiler.env.*;
import org.eclipse.jdt.internal.compiler.lookup.*;
import org.eclipse.jdt.internal.compiler.parser.Scanner;
import org.eclipse.jdt.internal.compiler.parser.TerminalTokens;
import org.eclipse.jdt.internal.compiler.problem.AbortCompilation;
import org.eclipse.jdt.internal.compiler.problem.DefaultProblemFactory;
import org.eclipse.jdt.internal.compiler.problem.ProblemReporter;
import org.eclipse.jdt.internal.compiler.util.SuffixConstants;
import org.eclipse.jdt.internal.compiler.util.HashtableOfObject;
import org.eclipse.jdt.internal.compiler.util.ObjectVector;
import org.eclipse.jdt.internal.core.*;
import org.eclipse.jdt.internal.core.BasicCompilationUnit;
import org.eclipse.jdt.internal.core.TypeConverter;
/**
* This class is the entry point for source completions.
* It contains two public APIs used to call CodeAssist on a given source with
* a given environment, assisting position and storage (and possibly options).
*/
public final class CompletionEngine
extends Engine
implements ISearchRequestor, TypeConstants , TerminalTokens , RelevanceConstants, SuffixConstants {
public HashtableOfObject typeCache;
public static boolean DEBUG = false;
private final static char[] ERROR_PATTERN = "*error*".toCharArray(); //$NON-NLS-1$
private final static char[] EXCEPTION_PATTERN = "*exception*".toCharArray(); //$NON-NLS-1$
private final static char[] SEMICOLON = new char[] { ';' };
private final static int SUPERTYPE = 1;
private final static int SUBTYPE = 2;
private final static int FIELD = 0;
private final static int LOCAL = 1;
private final static int ARGUMENT = 2;
int expectedTypesPtr = -1;
TypeBinding[] expectedTypes = new TypeBinding[1];
int expectedTypesFilter;
int uninterestingBindingsPtr = -1;
Binding[] uninterestingBindings = new Binding[1];
boolean assistNodeIsClass;
boolean assistNodeIsException;
boolean assistNodeIsInterface;
IJavaProject javaProject;
CompletionParser parser;
ICompletionRequestor requestor;
ProblemReporter problemReporter;
char[] source;
char[] completionToken;
char[] qualifiedCompletionToken;
boolean resolvingImports = false;
boolean insideQualifiedReference = false;
boolean noProposal = true;
IProblem problem = null;
int startPosition, actualCompletionPosition, endPosition, offset;
HashtableOfObject knownPkgs = new HashtableOfObject(10);
HashtableOfObject knownTypes = new HashtableOfObject(10);
Scanner nameScanner;
/*
static final char[][] mainDeclarations =
new char[][] {
"package".toCharArray(),
"import".toCharArray(),
"abstract".toCharArray(),
"final".toCharArray(),
"public".toCharArray(),
"class".toCharArray(),
"interface".toCharArray()};
static final char[][] modifiers = // may want field, method, type & member type modifiers
new char[][] {
"abstract".toCharArray(),
"final".toCharArray(),
"native".toCharArray(),
"public".toCharArray(),
"protected".toCharArray(),
"private".toCharArray(),
"static".toCharArray(),
"strictfp".toCharArray(),
"synchronized".toCharArray(),
"transient".toCharArray(),
"volatile".toCharArray()};
*/
static final char[][] baseTypes = new char[][] {
"boolean".toCharArray(), //$NON-NLS-1$
"byte".toCharArray(), //$NON-NLS-1$
"char".toCharArray(), //$NON-NLS-1$
"double".toCharArray(), //$NON-NLS-1$
"float".toCharArray(), //$NON-NLS-1$
"int".toCharArray(), //$NON-NLS-1$
"long".toCharArray(), //$NON-NLS-1$
"short".toCharArray(), //$NON-NLS-1$
"void".toCharArray(), //$NON-NLS-1$
};
static final char[] classField = "class".toCharArray(); //$NON-NLS-1$
static final char[] lengthField = "length".toCharArray(); //$NON-NLS-1$
static final char[] cloneMethod = "clone".toCharArray(); //$NON-NLS-1$
static final char[] THIS = "this".toCharArray(); //$NON-NLS-1$
static final char[] THROWS = "throws".toCharArray(); //$NON-NLS-1$
static InvocationSite FakeInvocationSite = new InvocationSite(){
public boolean isSuperAccess(){ return false; }
public boolean isTypeAccess(){ return false; }
public void setActualReceiverType(ReferenceBinding receiverType) {}
public void setDepth(int depth){}
public void setFieldIndex(int depth){}
public int sourceStart() { return 0; }
public int sourceEnd() { return 0; }
};
/**
* The CompletionEngine is responsible for computing source completions.
*
* It requires a searchable name environment, which supports some
* specific search APIs, and a requestor to feed back the results to a UI.
*
* @param nameEnvironment org.eclipse.jdt.internal.codeassist.ISearchableNameEnvironment
* used to resolve type/package references and search for types/packages
* based on partial names.
*
* @param requestor org.eclipse.jdt.internal.codeassist.ICompletionRequestor
* since the engine might produce answers of various forms, the engine
* is associated with a requestor able to accept all possible completions.
*
* @param settings java.util.Map
* set of options used to configure the code assist engine.
*/
public CompletionEngine(
ISearchableNameEnvironment nameEnvironment,
ICompletionRequestor requestor,
Map settings,
IJavaProject javaProject) {
super(settings);
this.javaProject = javaProject;
this.requestor = requestor;
this.nameEnvironment = nameEnvironment;
this.typeCache = new HashtableOfObject(5);
problemReporter = new ProblemReporter(
DefaultErrorHandlingPolicies.proceedWithAllProblems(),
this.compilerOptions,
new DefaultProblemFactory(Locale.getDefault()) {
int lastErrorStart;
public IProblem createProblem(
char[] originatingFileName,
int problemId,
String[] problemArguments,
String[] messageArguments,
int severity,
int start,
int end,
int lineNumber) {
IProblem pb = super.createProblem(
originatingFileName,
problemId,
problemArguments,
messageArguments,
severity,
start,
end,
lineNumber);
// TODO (david) problems could be detected in other units which got requested (see CompilationUnitProblemFinder)
if(actualCompletionPosition > start
&& lastErrorStart < start
&& pb.isError()
&& (pb.getID() & IProblem.Syntax) == 0) {
CompletionEngine.this.problem = pb;
lastErrorStart = start;
}
return pb;
}
});
this.lookupEnvironment =
new LookupEnvironment(this, this.compilerOptions, problemReporter, nameEnvironment);
this.parser =
new CompletionParser(problemReporter);
this.nameScanner =
new Scanner(
false /*comment*/,
false /*whitespace*/,
false /*nls*/,
this.compilerOptions.sourceLevel,
null /*taskTags*/,
null/*taskPriorities*/,
true/*taskCaseSensitive*/);
}
/**
* One result of the search consists of a new class.
*
* NOTE - All package and type names are presented in their readable form:
* Package names are in the form "a.b.c".
* Nested type names are in the qualified form "A.M".
* The default package is represented by an empty array.
*/
public void acceptClass(char[] packageName, char[] className, int modifiers) {
char[] fullyQualifiedName = CharOperation.concat(packageName, className, '.');
char[] completionName = fullyQualifiedName;
if (this.knownTypes.containsKey(completionName)) return;
this.knownTypes.put(completionName, this);
boolean isQualified = true;
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
if (resolvingImports) {
completionName = CharOperation.concat(completionName, SEMICOLON);
relevance += computeRelevanceForCaseMatching(completionToken, fullyQualifiedName);
} else {
if (mustQualifyType(packageName, className)) {
if (packageName == null || packageName.length == 0)
if (unitScope != null && unitScope.fPackage.compoundName != CharOperation.NO_CHAR_CHAR)
return; // ignore types from the default package from outside it
} else {
completionName = className;
isQualified = false;
}
relevance += computeRelevanceForCaseMatching(completionToken, className);
relevance += computeRelevanceForExpectingType(packageName, className);
relevance += computeRelevanceForClass();
relevance += computeRelevanceForException(className);
relevance += computeRelevanceForQualification(isQualified);
}
noProposal = false;
requestor.acceptClass(
packageName,
className,
completionName,
modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
/**
* One result of the search consists of a new interface.
*
* NOTE - All package and type names are presented in their readable form:
* Package names are in the form "a.b.c".
* Nested type names are in the qualified form "A.I".
* The default package is represented by an empty array.
*/
public void acceptInterface(
char[] packageName,
char[] interfaceName,
int modifiers) {
char[] fullyQualifiedName = CharOperation.concat(packageName, interfaceName, '.');
char[] completionName = fullyQualifiedName;
if (this.knownTypes.containsKey(completionName)) return;
this.knownTypes.put(completionName, this);
boolean isQualified = true;
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
if (resolvingImports) {
completionName = CharOperation.concat(completionName, new char[] { ';' });
relevance += computeRelevanceForCaseMatching(completionToken, fullyQualifiedName);
} else {
if (mustQualifyType(packageName, interfaceName)) {
if (packageName == null || packageName.length == 0)
if (unitScope != null && unitScope.fPackage.compoundName != CharOperation.NO_CHAR_CHAR)
return; // ignore types from the default package from outside it
} else {
completionName = interfaceName;
isQualified = false;
}
relevance += computeRelevanceForCaseMatching(completionToken, interfaceName);
relevance += computeRelevanceForExpectingType(packageName, interfaceName);
relevance += computeRelevanceForInterface();
relevance += computeRelevanceForQualification(isQualified);
}
noProposal = false;
requestor.acceptInterface(
packageName,
interfaceName,
completionName,
modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
/**
* One result of the search consists of a new package.
*
* NOTE - All package names are presented in their readable form:
* Package names are in the form "a.b.c".
* The default package is represented by an empty array.
*/
public void acceptPackage(char[] packageName) {
if (this.knownPkgs.containsKey(packageName)) return;
this.knownPkgs.put(packageName, this);
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(qualifiedCompletionToken == null ? completionToken : qualifiedCompletionToken, packageName);
relevance += computeRelevanceForQualification(true);
noProposal = false;
requestor.acceptPackage(
packageName,
resolvingImports
? CharOperation.concat(packageName, new char[] { '.', '*', ';' })
: packageName,
startPosition - offset,
endPosition - offset,
relevance);
}
/**
* One result of the search consists of a new type.
*
* NOTE - All package and type names are presented in their readable form:
* Package names are in the form "a.b.c".
* Nested type names are in the qualified form "A.M".
* The default package is represented by an empty array.
*/
public void acceptType(char[] packageName, char[] typeName) {
char[] fullyQualifiedName = CharOperation.concat(packageName, typeName, '.');
char[] completionName = fullyQualifiedName;
if (this.knownTypes.containsKey(completionName)) return;
this.knownTypes.put(completionName, this);
boolean isQualified = true;
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
if (resolvingImports) {
completionName = CharOperation.concat(completionName, new char[] { ';' });
relevance += computeRelevanceForCaseMatching(completionToken, fullyQualifiedName);
} else {
if (mustQualifyType(packageName, typeName)) {
if (packageName == null || packageName.length == 0)
if (unitScope != null && unitScope.fPackage.compoundName != CharOperation.NO_CHAR_CHAR)
return; // ignore types from the default package from outside it
} else {
completionName = typeName;
isQualified = false;
}
relevance += computeRelevanceForCaseMatching(completionToken, typeName);
relevance += computeRelevanceForExpectingType(packageName, typeName);
relevance += computeRelevanceForQualification(isQualified);
}
noProposal = false;
requestor.acceptType(
packageName,
typeName,
completionName,
startPosition - offset,
endPosition - offset,
relevance);
}
private void complete(ASTNode astNode, ASTNode astNodeParent, Binding qualifiedBinding, Scope scope) {
setSourceRange(astNode.sourceStart, astNode.sourceEnd);
computeUninterestingBindings(astNodeParent, scope);
if(astNodeParent != null) {
computeExpectedTypes(astNodeParent, scope);
}
if (astNode instanceof CompletionOnFieldType) {
CompletionOnFieldType field = (CompletionOnFieldType) astNode;
CompletionOnSingleTypeReference type = (CompletionOnSingleTypeReference) field.type;
completionToken = type.token;
setSourceRange(type.sourceStart, type.sourceEnd);
findTypesAndPackages(completionToken, scope);
findKeywordsForMember(completionToken, field.modifiers);
if(!field.isLocalVariable && field.modifiers == CompilerModifiers.AccDefault) {
findMethods(completionToken,null,scope.enclosingSourceType(),scope,new ObjectVector(),false,false,true,null,null,false, false);
proposeNewMethod(completionToken, scope.enclosingSourceType());
}
} else {
if(astNode instanceof CompletionOnMethodReturnType) {
CompletionOnMethodReturnType method = (CompletionOnMethodReturnType) astNode;
SingleTypeReference type = (CompletionOnSingleTypeReference) method.returnType;
completionToken = type.token;
setSourceRange(type.sourceStart, type.sourceEnd);
findTypesAndPackages(completionToken, scope);
findKeywordsForMember(completionToken, method.modifiers);
if(method.modifiers == CompilerModifiers.AccDefault) {
findMethods(completionToken,null,scope.enclosingSourceType(),scope,new ObjectVector(),false,false,true,null,null,false,false);
proposeNewMethod(completionToken, scope.enclosingSourceType());
}
} else {
if (astNode instanceof CompletionOnSingleNameReference) {
CompletionOnSingleNameReference singleNameReference = (CompletionOnSingleNameReference) astNode;
completionToken = singleNameReference.token;
findVariablesAndMethods(
completionToken,
scope,
(CompletionOnSingleNameReference) astNode,
scope);
// can be the start of a qualified type name
findTypesAndPackages(completionToken, scope);
findKeywords(completionToken, singleNameReference.possibleKeywords);
if(singleNameReference.canBeExplicitConstructor){
if(CharOperation.prefixEquals(completionToken, Keywords.THIS, false)) {
ReferenceBinding ref = scope.enclosingSourceType();
findExplicitConstructors(Keywords.THIS, ref, (MethodScope)scope, singleNameReference);
} else if(CharOperation.prefixEquals(completionToken, Keywords.SUPER, false)) {
ReferenceBinding ref = scope.enclosingSourceType();
findExplicitConstructors(Keywords.SUPER, ref.superclass(), (MethodScope)scope, singleNameReference);
}
}
} else {
if (astNode instanceof CompletionOnSingleTypeReference) {
completionToken = ((CompletionOnSingleTypeReference) astNode).token;
assistNodeIsClass = astNode instanceof CompletionOnClassReference;
assistNodeIsException = astNode instanceof CompletionOnExceptionReference;
assistNodeIsInterface = astNode instanceof CompletionOnInterfaceReference;
// can be the start of a qualified type name
if (qualifiedBinding == null) {
findTypesAndPackages(completionToken, scope);
} else {
findMemberTypes(
completionToken,
(ReferenceBinding) qualifiedBinding,
scope,
scope.enclosingSourceType());
}
} else {
if (astNode instanceof CompletionOnQualifiedNameReference) {
insideQualifiedReference = true;
CompletionOnQualifiedNameReference ref =
(CompletionOnQualifiedNameReference) astNode;
completionToken = ref.completionIdentifier;
long completionPosition = ref.sourcePositions[ref.sourcePositions.length - 1];
if (qualifiedBinding instanceof VariableBinding) {
setSourceRange((int) (completionPosition >>> 32), (int) completionPosition);
TypeBinding receiverType = ((VariableBinding) qualifiedBinding).type;
if (receiverType != null) {
findFieldsAndMethods(completionToken, receiverType, scope, ref, scope,false,false);
}
} else {
if (qualifiedBinding instanceof ReferenceBinding) {
ReferenceBinding receiverType = (ReferenceBinding) qualifiedBinding;
setSourceRange((int) (completionPosition >>> 32), (int) completionPosition);
findMemberTypes(completionToken, receiverType, scope, scope.enclosingSourceType());
findClassField(completionToken, (TypeBinding) qualifiedBinding, scope);
MethodScope methodScope = null;
if((scope instanceof MethodScope && !((MethodScope)scope).isStatic)
|| ((methodScope = scope.enclosingMethodScope()) != null && !methodScope.isStatic)) {
if(completionToken.length > 0) {
findKeywords(completionToken, new char[][]{Keywords.THIS});
} else {
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(completionToken, Keywords.THIS);
noProposal = false;
requestor.acceptKeyword(Keywords.THIS, startPosition - offset, endPosition - offset,relevance);
}
}
findFields(
completionToken,
receiverType,
scope,
new ObjectVector(),
new ObjectVector(),
true,
ref,
scope,
false);
findMethods(
completionToken,
null,
receiverType,
scope,
new ObjectVector(),
true,
false,
false,
ref,
scope,
false,
false);
} else {
if (qualifiedBinding instanceof PackageBinding) {
setSourceRange(astNode.sourceStart, (int) completionPosition);
// replace to the end of the completion identifier
findTypesAndSubpackages(completionToken, (PackageBinding) qualifiedBinding);
}
}
}
} else {
if (astNode instanceof CompletionOnQualifiedTypeReference) {
insideQualifiedReference = true;
assistNodeIsClass = astNode instanceof CompletionOnQualifiedClassReference;
assistNodeIsException = astNode instanceof CompletionOnQualifiedExceptionReference;
assistNodeIsInterface = astNode instanceof CompletionOnQualifiedInterfaceReference;
CompletionOnQualifiedTypeReference ref =
(CompletionOnQualifiedTypeReference) astNode;
completionToken = ref.completionIdentifier;
long completionPosition = ref.sourcePositions[ref.tokens.length];
// get the source positions of the completion identifier
if (qualifiedBinding instanceof ReferenceBinding) {
setSourceRange((int) (completionPosition >>> 32), (int) completionPosition);
findMemberTypes(
completionToken,
(ReferenceBinding) qualifiedBinding,
scope,
scope.enclosingSourceType());
} else {
if (qualifiedBinding instanceof PackageBinding) {
setSourceRange(astNode.sourceStart, (int) completionPosition);
// replace to the end of the completion identifier
findTypesAndSubpackages(completionToken, (PackageBinding) qualifiedBinding);
}
}
} else {
if (astNode instanceof CompletionOnMemberAccess) {
insideQualifiedReference = true;
CompletionOnMemberAccess access = (CompletionOnMemberAccess) astNode;
long completionPosition = access.nameSourcePosition;
setSourceRange((int) (completionPosition >>> 32), (int) completionPosition);
completionToken = access.token;
findKeywords(completionToken, new char[][]{Keywords.NEW});
findFieldsAndMethods(
completionToken,
(TypeBinding) qualifiedBinding,
scope,
access,
scope,
false,
access.receiver instanceof SuperReference);
} else {
if (astNode instanceof CompletionOnMessageSend) {
setSourceRange(astNode.sourceStart, astNode.sourceEnd, false);
CompletionOnMessageSend messageSend = (CompletionOnMessageSend) astNode;
TypeBinding[] argTypes =
computeTypes(messageSend.arguments, (BlockScope) scope);
completionToken = messageSend.selector;
if (qualifiedBinding == null) {
findImplicitMessageSends(completionToken, argTypes, scope, messageSend, scope);
} else {
findMethods(
completionToken,
argTypes,
(ReferenceBinding) qualifiedBinding,
scope,
new ObjectVector(),
false,
true,
false,
messageSend,
scope,
false,
messageSend.receiver instanceof SuperReference);
}
} else {
if (astNode instanceof CompletionOnExplicitConstructorCall) {
setSourceRange(astNode.sourceStart, astNode.sourceEnd, false);
CompletionOnExplicitConstructorCall constructorCall =
(CompletionOnExplicitConstructorCall) astNode;
TypeBinding[] argTypes =
computeTypes(constructorCall.arguments, (BlockScope) scope);
findConstructors(
(ReferenceBinding) qualifiedBinding,
argTypes,
scope,
constructorCall,
false);
} else {
if (astNode instanceof CompletionOnQualifiedAllocationExpression) {
setSourceRange(astNode.sourceStart, astNode.sourceEnd, false);
CompletionOnQualifiedAllocationExpression allocExpression =
(CompletionOnQualifiedAllocationExpression) astNode;
TypeBinding[] argTypes =
computeTypes(allocExpression.arguments, (BlockScope) scope);
ReferenceBinding ref = (ReferenceBinding) qualifiedBinding;
if(ref.isClass()) {
if(!ref.isAbstract()) {
findConstructors(
ref,
argTypes,
scope,
allocExpression,
false);
}
}
if(!ref.isFinal()){
findAnonymousType(
ref,
argTypes,
scope,
allocExpression);
}
} else {
if (astNode instanceof CompletionOnClassLiteralAccess) {
CompletionOnClassLiteralAccess access = (CompletionOnClassLiteralAccess) astNode;
setSourceRange(access.classStart, access.sourceEnd);
completionToken = access.completionIdentifier;
findClassField(completionToken, (TypeBinding) qualifiedBinding, scope);
} else {
if(astNode instanceof CompletionOnMethodName) {
CompletionOnMethodName method = (CompletionOnMethodName) astNode;
setSourceRange(method.sourceStart, method.selectorEnd);
FieldBinding[] fields = scope.enclosingSourceType().fields();
char[][] excludeNames = new char[fields.length][];
for(int i = 0 ; i < fields.length ; i++){
excludeNames[i] = fields[i].name;
}
completionToken = method.selector;
findVariableNames(completionToken, method.returnType, excludeNames, FIELD, method.modifiers);
} else {
if (astNode instanceof CompletionOnFieldName) {
CompletionOnFieldName field = (CompletionOnFieldName) astNode;
FieldBinding[] fields = scope.enclosingSourceType().fields();
char[][] excludeNames = new char[fields.length][];
for(int i = 0 ; i < fields.length ; i++){
excludeNames[i] = fields[i].name;
}
completionToken = field.realName;
findVariableNames(field.realName, field.type, excludeNames, FIELD, field.modifiers);
} else {
if (astNode instanceof CompletionOnLocalName ||
astNode instanceof CompletionOnArgumentName){
LocalDeclaration variable = (LocalDeclaration) astNode;
LocalVariableBinding[] locals = ((BlockScope)scope).locals;
char[][] excludeNames = new char[locals.length][];
int localCount = 0;
for(int i = 0 ; i < locals.length ; i++){
if(locals[i] != null) {
excludeNames[localCount++] = locals[i].name;
}
}
System.arraycopy(excludeNames, 0, excludeNames = new char[localCount][], 0, localCount);
if(variable instanceof CompletionOnLocalName){
completionToken = ((CompletionOnLocalName) variable).realName;
findVariableNames(completionToken, variable.type, excludeNames, LOCAL, variable.modifiers);
} else {
CompletionOnArgumentName arg = (CompletionOnArgumentName) variable;
completionToken = arg.realName;
findVariableNames(completionToken, variable.type, excludeNames, arg.isCatchArgument ? LOCAL : ARGUMENT, variable.modifiers);
}
} else {
if(astNode instanceof CompletionOnKeyword) {
CompletionOnKeyword keyword = (CompletionOnKeyword)astNode;
findKeywords(keyword.getToken(), keyword.getPossibleKeywords());
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
public void complete(IType type, char[] snippet, int position, char[][] localVariableTypeNames, char[][] localVariableNames, int[] localVariableModifiers, boolean isStatic){
IType topLevelType = type;
while(topLevelType.getDeclaringType() != null) {
topLevelType = topLevelType.getDeclaringType();
}
CompilationResult compilationResult = new CompilationResult((topLevelType.getElementName() + SUFFIX_STRING_java).toCharArray(), 1, 1, this.compilerOptions.maxProblemsPerUnit);
CompilationUnitDeclaration compilationUnit = new CompilationUnitDeclaration(problemReporter, compilationResult, 0);
try {
//TODO (david) should be instead be using SourceTypeConverter?
TypeDeclaration typeDeclaration = TypeConverter.buildTypeDeclaration(type, compilationUnit, compilationResult);
if(typeDeclaration != null) {
// build AST from snippet
Initializer fakeInitializer = parseSnippeInitializer(snippet, position, localVariableTypeNames, localVariableNames, localVariableModifiers, isStatic);
// merge AST
FieldDeclaration[] oldFields = typeDeclaration.fields;
FieldDeclaration[] newFields = new FieldDeclaration[oldFields.length + 1];
System.arraycopy(oldFields, 0, newFields, 0, oldFields.length);
newFields[oldFields.length] = fakeInitializer;
typeDeclaration.fields = newFields;
if(DEBUG) {
System.out.println("SNIPPET COMPLETION AST :"); //$NON-NLS-1$
System.out.println(compilationUnit.toString());
}
if (compilationUnit.types != null) {
try {
lookupEnvironment.buildTypeBindings(compilationUnit);
if ((unitScope = compilationUnit.scope) != null) {
lookupEnvironment.completeTypeBindings(compilationUnit, true);
compilationUnit.scope.faultInTypes();
compilationUnit.resolve();
}
} catch (CompletionNodeFound e) {
// completionNodeFound = true;
if (e.astNode != null) {
// if null then we found a problem in the completion node
complete(e.astNode, parser.assistNodeParent, e.qualifiedBinding, e.scope);
}
}
}
if(noProposal && problem != null) {
requestor.acceptError(problem);
}
}
} catch(JavaModelException e) {
// Do nothing
}
}
private Initializer parseSnippeInitializer(char[] snippet, int position, char[][] localVariableTypeNames, char[][] localVariableNames, int[] localVariableModifiers, boolean isStatic){
StringBuffer prefix = new StringBuffer();
prefix.append("public class FakeType {\n "); //$NON-NLS-1$
if(isStatic) {
prefix.append("static "); //$NON-NLS-1$
}
prefix.append("{\n"); //$NON-NLS-1$
for (int i = 0; i < localVariableTypeNames.length; i++) {
ASTNode.printModifiers(localVariableModifiers[i], prefix);
prefix.append(' ');
prefix.append(localVariableTypeNames[i]);
prefix.append(' ');
prefix.append(localVariableNames[i]);
prefix.append(';');
}
char[] fakeSource = CharOperation.concat(prefix.toString().toCharArray(), snippet, "}}".toCharArray());//$NON-NLS-1$
offset = prefix.length();
String encoding = this.compilerOptions.defaultEncoding;
BasicCompilationUnit fakeUnit = new BasicCompilationUnit(
fakeSource,
null,
"FakeType.java", //$NON-NLS-1$
encoding);
actualCompletionPosition = prefix.length() + position - 1;
CompilationResult fakeResult = new CompilationResult(fakeUnit, 1, 1, this.compilerOptions.maxProblemsPerUnit);
CompilationUnitDeclaration fakeAST = parser.dietParse(fakeUnit, fakeResult, actualCompletionPosition);
parseBlockStatements(fakeAST, actualCompletionPosition);
return (Initializer)fakeAST.types[0].fields[0];
}
/**
* Ask the engine to compute a completion at the specified position
* of the given compilation unit.
*
* @return void
* completion results are answered through a requestor.
*
* @param sourceUnit org.eclipse.jdt.internal.compiler.env.ICompilationUnit
* the source of the current compilation unit.
*
* @param completionPosition int
* a position in the source where the completion is taking place.
* This position is relative to the source provided.
*/
public void complete(ICompilationUnit sourceUnit, int completionPosition, int pos) {
if(DEBUG) {
System.out.print("COMPLETION IN "); //$NON-NLS-1$
System.out.print(sourceUnit.getFileName());
System.out.print(" AT POSITION "); //$NON-NLS-1$
System.out.println(completionPosition);
System.out.println("COMPLETION - Source :"); //$NON-NLS-1$
System.out.println(sourceUnit.getContents());
}
try {
actualCompletionPosition = completionPosition - 1;
this.offset = pos;
// for now until we can change the UI.
CompilationResult result = new CompilationResult(sourceUnit, 1, 1, this.compilerOptions.maxProblemsPerUnit);
CompilationUnitDeclaration parsedUnit = parser.dietParse(sourceUnit, result, actualCompletionPosition);
// boolean completionNodeFound = false;
if (parsedUnit != null) {
if(DEBUG) {
System.out.println("COMPLETION - Diet AST :"); //$NON-NLS-1$
System.out.println(parsedUnit.toString());
}
// scan the package & import statements first
if (parsedUnit.currentPackage instanceof CompletionOnPackageReference) {
findPackages((CompletionOnPackageReference) parsedUnit.currentPackage);
if(noProposal && problem != null) {
requestor.acceptError(problem);
}
return;
}
ImportReference[] imports = parsedUnit.imports;
if (imports != null) {
for (int i = 0, length = imports.length; i < length; i++) {
ImportReference importReference = imports[i];
if (importReference instanceof CompletionOnImportReference) {
findImports((CompletionOnImportReference) importReference);
if(noProposal && problem != null) {
requestor.acceptError(problem);
}
return;
} else if(importReference instanceof CompletionOnKeyword) {
setSourceRange(importReference.sourceStart, importReference.sourceEnd);
CompletionOnKeyword keyword = (CompletionOnKeyword)importReference;
findKeywords(keyword.getToken(), keyword.getPossibleKeywords());
if(noProposal && problem != null) {
requestor.acceptError(problem);
}
return;
}
}
}
if (parsedUnit.types != null) {
try {
lookupEnvironment.buildTypeBindings(parsedUnit);
if ((unitScope = parsedUnit.scope) != null) {
source = sourceUnit.getContents();
lookupEnvironment.completeTypeBindings(parsedUnit, true);
parsedUnit.scope.faultInTypes();
parseBlockStatements(parsedUnit, actualCompletionPosition);
if(DEBUG) {
System.out.println("COMPLETION - AST :"); //$NON-NLS-1$
System.out.println(parsedUnit.toString());
}
parsedUnit.resolve();
}
} catch (CompletionNodeFound e) {
// completionNodeFound = true;
if (e.astNode != null) {
if(DEBUG) {
System.out.print("COMPLETION - Completion node : "); //$NON-NLS-1$
System.out.println(e.astNode.toString());
if(parser.assistNodeParent != null) {
System.out.print("COMPLETION - Parent Node : "); //$NON-NLS-1$
System.out.println(parser.assistNodeParent);
}
}
// if null then we found a problem in the completion node
complete(e.astNode, parser.assistNodeParent, e.qualifiedBinding, e.scope);
}
}
}
}
if(noProposal && problem != null) {
requestor.acceptError(problem);
}
/* Ignore package, import, class & interface keywords for now...
if (!completionNodeFound) {
if (parsedUnit == null || parsedUnit.types == null) {
// this is not good enough... can still be trying to define a second type
CompletionScanner scanner = (CompletionScanner) parser.scanner;
setSourceRange(scanner.completedIdentifierStart, scanner.completedIdentifierEnd);
findKeywords(scanner.completionIdentifier, mainDeclarations, null);
}
// currently have no way to know if extends/implements are possible keywords
}
*/
} catch (IndexOutOfBoundsException e) { // work-around internal failure - 1GEMF6D
} catch (InvalidCursorLocation e) { // may eventually report a usefull error
} catch (AbortCompilation e) { // ignore this exception for now since it typically means we cannot find java.lang.Object
} catch (CompletionNodeFound e){ // internal failure - bugs 5618
} finally {
reset();
}
}
private TypeBinding[] computeTypes(Expression[] arguments, BlockScope scope) {
if (arguments == null)
return null;
int argsLength = arguments.length;
TypeBinding[] argTypes = new TypeBinding[argsLength];
for (int a = argsLength; --a >= 0;)
argTypes[a] = arguments[a].resolvedType;
return argTypes;
}
private void findAnonymousType(
ReferenceBinding currentType,
TypeBinding[] argTypes,
Scope scope,
InvocationSite invocationSite) {
if (currentType.isInterface()) {
char[] completion = CharOperation.NO_CHAR;
// nothing to insert - do not want to replace the existing selector & arguments
if (source == null
|| source.length <= endPosition
|| source[endPosition] != ')')
completion = new char[] { ')' };
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
noProposal = false;
requestor.acceptAnonymousType(
currentType.qualifiedPackageName(),
currentType.qualifiedSourceName(),
CharOperation.NO_CHAR_CHAR,
CharOperation.NO_CHAR_CHAR,
CharOperation.NO_CHAR_CHAR,
completion,
IConstants.AccPublic,
endPosition - offset,
endPosition - offset,
relevance);
} else {
findConstructors(
currentType,
argTypes,
scope,
invocationSite,
true);
}
}
private void findClassField(char[] token, TypeBinding receiverType, Scope scope) {
if (token == null)
return;
if (token.length <= classField.length
&& CharOperation.prefixEquals(token, classField, false /* ignore case */
)) {
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(token, classField);
relevance += computeRelevanceForExpectingType(scope.getJavaLangClass());
noProposal = false;
requestor.acceptField(
CharOperation.NO_CHAR,
CharOperation.NO_CHAR,
classField,
CharOperation.NO_CHAR,
CharOperation.NO_CHAR,
classField,
IConstants.AccStatic | IConstants.AccPublic,
startPosition - offset,
endPosition - offset,
relevance);
}
}
private void findExplicitConstructors(
char[] name,
ReferenceBinding currentType,
MethodScope scope,
InvocationSite invocationSite) {
ConstructorDeclaration constructorDeclaration = (ConstructorDeclaration)scope.referenceContext;
MethodBinding enclosingConstructor = constructorDeclaration.binding;
// No visibility checks can be performed without the scope & invocationSite
MethodBinding[] methods = currentType.availableMethods();
if(methods != null) {
next : for (int f = methods.length; --f >= 0;) {
MethodBinding constructor = methods[f];
if (constructor != enclosingConstructor && constructor.isConstructor()) {
if (constructor.isSynthetic()) continue next;
if (options.checkVisibility
&& !constructor.canBeSeenBy(invocationSite, scope)) continue next;
TypeBinding[] parameters = constructor.parameters;
int paramLength = parameters.length;
char[][] parameterPackageNames = new char[paramLength][];
char[][] parameterTypeNames = new char[paramLength][];
for (int i = 0; i < paramLength; i++) {
TypeBinding type = parameters[i];
parameterPackageNames[i] = type.qualifiedPackageName();
parameterTypeNames[i] = type.qualifiedSourceName();
}
char[][] parameterNames = findMethodParameterNames(constructor,parameterTypeNames);
char[] completion = CharOperation.NO_CHAR;
if (source != null
&& source.length > endPosition
&& source[endPosition] == '(')
completion = name;
else
completion = CharOperation.concat(name, new char[] { '(', ')' });
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(completionToken, name);
noProposal = false;
requestor.acceptMethod(
currentType.qualifiedPackageName(),
currentType.qualifiedSourceName(),
name,
parameterPackageNames,
parameterTypeNames,
parameterNames,
CharOperation.NO_CHAR,
CharOperation.NO_CHAR,
completion,
constructor.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
}
}
}
private void findConstructors(
ReferenceBinding currentType,
TypeBinding[] argTypes,
Scope scope,
InvocationSite invocationSite,
boolean forAnonymousType) {
// No visibility checks can be performed without the scope & invocationSite
MethodBinding[] methods = currentType.availableMethods();
if(methods != null) {
int minArgLength = argTypes == null ? 0 : argTypes.length;
next : for (int f = methods.length; --f >= 0;) {
MethodBinding constructor = methods[f];
if (constructor.isConstructor()) {
if (constructor.isSynthetic()) continue next;
if (options.checkVisibility
&& !constructor.canBeSeenBy(invocationSite, scope)) {
if(!forAnonymousType || !constructor.isProtected())
continue next;
}
TypeBinding[] parameters = constructor.parameters;
int paramLength = parameters.length;
if (minArgLength > paramLength)
continue next;
for (int a = minArgLength; --a >= 0;)
if (argTypes[a] != null) // can be null if it could not be resolved properly
if (!argTypes[a].isCompatibleWith(constructor.parameters[a]))
continue next;
char[][] parameterPackageNames = new char[paramLength][];
char[][] parameterTypeNames = new char[paramLength][];
for (int i = 0; i < paramLength; i++) {
TypeBinding type = parameters[i];
parameterPackageNames[i] = type.qualifiedPackageName();
parameterTypeNames[i] = type.qualifiedSourceName();
}
char[][] parameterNames = findMethodParameterNames(constructor,parameterTypeNames);
char[] completion = CharOperation.NO_CHAR;
// nothing to insert - do not want to replace the existing selector & arguments
if (source == null
|| source.length <= endPosition
|| source[endPosition] != ')')
completion = new char[] { ')' };
if(forAnonymousType){
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
noProposal = false;
requestor.acceptAnonymousType(
currentType.qualifiedPackageName(),
currentType.qualifiedSourceName(),
parameterPackageNames,
parameterTypeNames,
parameterNames,
completion,
constructor.modifiers,
endPosition - offset,
endPosition - offset,
relevance);
} else {
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
noProposal = false;
requestor.acceptMethod(
currentType.qualifiedPackageName(),
currentType.qualifiedSourceName(),
currentType.sourceName(),
parameterPackageNames,
parameterTypeNames,
parameterNames,
CharOperation.NO_CHAR,
CharOperation.NO_CHAR,
completion,
constructor.modifiers,
endPosition - offset,
endPosition - offset,
relevance);
}
}
}
}
}
// Helper method for findFields(char[], ReferenceBinding, Scope, ObjectVector, boolean)
private void findFields(
char[] fieldName,
FieldBinding[] fields,
Scope scope,
ObjectVector fieldsFound,
ObjectVector localsFound,
boolean onlyStaticFields,
ReferenceBinding receiverType,
InvocationSite invocationSite,
Scope invocationScope,
boolean implicitCall) {
ObjectVector newFieldsFound = new ObjectVector();
// Inherited fields which are hidden by subclasses are filtered out
// No visibility checks can be performed without the scope & invocationSite
int fieldLength = fieldName.length;
next : for (int f = fields.length; --f >= 0;) {
FieldBinding field = fields[f];
if (field.isSynthetic()) continue next;
if (onlyStaticFields && !field.isStatic()) continue next;
if (fieldLength > field.name.length) continue next;
if (!CharOperation.prefixEquals(fieldName, field.name, false /* ignore case */)) continue next;
if (options.checkVisibility
&& !field.canBeSeenBy(receiverType, invocationSite, scope)) continue next;
boolean prefixRequired = false;
for (int i = fieldsFound.size; --i >= 0;) {
Object[] other = (Object[])fieldsFound.elementAt(i);
FieldBinding otherField = (FieldBinding) other[0];
ReferenceBinding otherReceiverType = (ReferenceBinding) other[1];
if (field == otherField && receiverType == otherReceiverType)
continue next;
if (CharOperation.equals(field.name, otherField.name, true)) {
if (field.declaringClass.isSuperclassOf(otherField.declaringClass))
continue next;
if (otherField.declaringClass.isInterface()) {
if (field.declaringClass == scope.getJavaLangObject())
continue next;
if (field.declaringClass.implementsInterface(otherField.declaringClass, true))
continue next;
}
if (field.declaringClass.isInterface())
if (otherField.declaringClass.implementsInterface(field.declaringClass, true))
continue next;
prefixRequired = true;
}
}
for (int l = localsFound.size; --l >= 0;) {
LocalVariableBinding local = (LocalVariableBinding) localsFound.elementAt(l);
if (CharOperation.equals(field.name, local.name, true)) {
SourceTypeBinding declarationType = scope.enclosingSourceType();
if (declarationType.isAnonymousType() && declarationType != invocationScope.enclosingSourceType()) {
continue next;
}
prefixRequired = true;
break;
}
}
newFieldsFound.add(new Object[]{field, receiverType});
char[] completion = field.name;
if(prefixRequired || options.forceImplicitQualification){
char[] prefix = computePrefix(scope.enclosingSourceType(), invocationScope.enclosingSourceType(), field.isStatic());
completion = CharOperation.concat(prefix,completion,'.');
}
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal(field);
relevance += computeRelevanceForCaseMatching(fieldName, field.name);
relevance += computeRelevanceForExpectingType(field.type);
relevance += computeRelevanceForStatic(onlyStaticFields, field.isStatic());
relevance += computeRelevanceForQualification(prefixRequired);
noProposal = false;
requestor
.acceptField(
field.declaringClass.qualifiedPackageName(),
field.declaringClass.qualifiedSourceName(),
field.name,
field.type.qualifiedPackageName(),
field.type.qualifiedSourceName(),
completion,
// may include some qualification to resolve ambiguities
field.modifiers, startPosition - offset, endPosition - offset,
relevance);
}
fieldsFound.addAll(newFieldsFound);
}
private void findFields(
char[] fieldName,
ReferenceBinding receiverType,
Scope scope,
ObjectVector fieldsFound,
ObjectVector localsFound,
boolean onlyStaticFields,
InvocationSite invocationSite,
Scope invocationScope,
boolean implicitCall) {
if (fieldName == null)
return;
ReferenceBinding currentType = receiverType;
ReferenceBinding[][] interfacesToVisit = null;
int lastPosition = -1;
do {
ReferenceBinding[] itsInterfaces = currentType.superInterfaces();
if (itsInterfaces != NoSuperInterfaces) {
if (interfacesToVisit == null)
interfacesToVisit = new ReferenceBinding[5][];
if (++lastPosition == interfacesToVisit.length)
System.arraycopy(
interfacesToVisit,
0,
interfacesToVisit = new ReferenceBinding[lastPosition * 2][],
0,
lastPosition);
interfacesToVisit[lastPosition] = itsInterfaces;
}
FieldBinding[] fields = currentType.availableFields();
if(fields != null) {
findFields(
fieldName,
fields,
scope,
fieldsFound,
localsFound,
onlyStaticFields,
receiverType,
invocationSite,
invocationScope,
implicitCall);
}
currentType = currentType.superclass();
} while (currentType != null);
if (interfacesToVisit != null) {
for (int i = 0; i <= lastPosition; i++) {
ReferenceBinding[] interfaces = interfacesToVisit[i];
for (int j = 0, length = interfaces.length; j < length; j++) {
ReferenceBinding anInterface = interfaces[j];
if ((anInterface.tagBits & TagBits.InterfaceVisited) == 0) {
// if interface as not already been visited
anInterface.tagBits |= TagBits.InterfaceVisited;
FieldBinding[] fields = anInterface.availableFields();
if(fields != null) {
findFields(
fieldName,
fields,
scope,
fieldsFound,
localsFound,
onlyStaticFields,
receiverType,
invocationSite,
invocationScope,
implicitCall);
}
ReferenceBinding[] itsInterfaces = anInterface.superInterfaces();
if (itsInterfaces != NoSuperInterfaces) {
if (++lastPosition == interfacesToVisit.length)
System.arraycopy(
interfacesToVisit,
0,
interfacesToVisit = new ReferenceBinding[lastPosition * 2][],
0,
lastPosition);
interfacesToVisit[lastPosition] = itsInterfaces;
}
}
}
}
// bit reinitialization
for (int i = 0; i <= lastPosition; i++) {
ReferenceBinding[] interfaces = interfacesToVisit[i];
for (int j = 0, length = interfaces.length; j < length; j++)
interfaces[j].tagBits &= ~TagBits.InterfaceVisited;
}
}
}
private void findFieldsAndMethods(
char[] token,
TypeBinding receiverType,
Scope scope,
InvocationSite invocationSite,
Scope invocationScope,
boolean implicitCall,
boolean superCall) {
if (token == null)
return;
if (receiverType.isBaseType())
return; // nothing else is possible with base types
ObjectVector methodsFound = new ObjectVector();
if (receiverType.isArrayType()) {
if (token.length <= lengthField.length
&& CharOperation.prefixEquals(token, lengthField, false /* ignore case */
)) {
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(token,lengthField);
relevance += computeRelevanceForExpectingType(BaseTypes.IntBinding);
noProposal = false;
requestor.acceptField(
CharOperation.NO_CHAR,
CharOperation.NO_CHAR,
lengthField,
CharOperation.NO_CHAR,
CharOperation.NO_CHAR,
lengthField,
IConstants.AccPublic,
startPosition - offset,
endPosition - offset,
relevance);
}
if (token.length <= cloneMethod.length
&& CharOperation.prefixEquals(token, cloneMethod, false /* ignore case */
)) {
ReferenceBinding objectRef = scope.getJavaLangObject();
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(token, cloneMethod);
relevance += computeRelevanceForExpectingType(objectRef);
relevance += computeRelevanceForStatic(false, false);
relevance += computeRelevanceForQualification(false);
char[] completion;
if (source != null
&& source.length > endPosition
&& source[endPosition] == '(') {
completion = cloneMethod;
} else {
completion = CharOperation.concat(cloneMethod, new char[] { '(', ')' });
}
noProposal = false;
requestor.acceptMethod(
CharOperation.NO_CHAR,
CharOperation.NO_CHAR,
cloneMethod,
CharOperation.NO_CHAR_CHAR,
CharOperation.NO_CHAR_CHAR,
CharOperation.NO_CHAR_CHAR,
CharOperation.concat(JAVA, LANG, '.'),
OBJECT,
completion,
IConstants.AccPublic,
startPosition - offset,
endPosition - offset,
relevance);
methodsFound.add(new Object[]{objectRef.getMethods(cloneMethod)[0], objectRef});
}
receiverType = scope.getJavaLangObject();
}
findFields(
token,
(ReferenceBinding) receiverType,
scope,
new ObjectVector(),
new ObjectVector(),
false,
invocationSite,
invocationScope,
implicitCall);
findMethods(
token,
null,
(ReferenceBinding) receiverType,
scope,
methodsFound,
false,
false,
false,
invocationSite,
invocationScope,
implicitCall,
superCall);
}
private void findImports(CompletionOnImportReference importReference) {
char[][] tokens = importReference.tokens;
char[] importName = CharOperation.concatWith(tokens, '.');
if (importName.length == 0)
return;
char[] lastToken = tokens[tokens.length - 1];
if(lastToken != null && lastToken.length == 0)
importName = CharOperation.concat(importName, new char[]{'.'});
resolvingImports = true;
setSourceRange(
importReference.sourceStart,
importReference.declarationSourceEnd);
completionToken = importName;
// want to replace the existing .*;
nameEnvironment.findPackages(importName, this);
nameEnvironment.findTypes(importName, this);
}
// what about onDemand types? Ignore them since it does not happen!
// import p1.p2.A.*;
private void findKeywords(char[] keyword, char[][] choices) {
if(choices == null || choices.length == 0) return;
int length = keyword.length;
if (length > 0)
for (int i = 0; i < choices.length; i++)
if (length <= choices[i].length
&& CharOperation.prefixEquals(keyword, choices[i], false /* ignore case */
)){
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(keyword, choices[i]);
noProposal = false;
requestor.acceptKeyword(choices[i], startPosition - offset, endPosition - offset,relevance);
}
}
private void findKeywordsForMember(char[] token, int modifiers) {
char[][] keywords = new char[Keywords.COUNT][];
int count = 0;
// visibility
if((modifiers & IConstants.AccPrivate) == 0
&& (modifiers & IConstants.AccProtected) == 0
&& (modifiers & IConstants.AccPublic) == 0) {
keywords[count++] = Keywords.PROTECTED;
keywords[count++] = Keywords.PUBLIC;
if((modifiers & IConstants.AccAbstract) == 0) {
keywords[count++] = Keywords.PRIVATE;
}
}
if((modifiers & IConstants.AccAbstract) == 0) {
// abtract
if((modifiers & ~(CompilerModifiers.AccVisibilityMASK | IConstants.AccStatic)) == 0) {
keywords[count++] = Keywords.ABSTRACT;
}
// final
if((modifiers & IConstants.AccFinal) == 0) {
keywords[count++] = Keywords.FINAL;
}
// static
if((modifiers & IConstants.AccStatic) == 0) {
keywords[count++] = Keywords.STATIC;
}
boolean canBeField = true;
boolean canBeMethod = true;
boolean canBeType = true;
if((modifiers & IConstants.AccNative) != 0
|| (modifiers & IConstants.AccStrictfp) != 0
|| (modifiers & IConstants.AccSynchronized) != 0) {
canBeField = false;
canBeType = false;
}
if((modifiers & IConstants.AccTransient) != 0
|| (modifiers & IConstants.AccVolatile) != 0) {
canBeMethod = false;
canBeType = false;
}
if(canBeField) {
// transient
if((modifiers & IConstants.AccTransient) == 0) {
keywords[count++] = Keywords.TRANSIENT;
}
// volatile
if((modifiers & IConstants.AccVolatile) == 0) {
keywords[count++] = Keywords.VOLATILE;
}
}
if(canBeMethod) {
// native
if((modifiers & IConstants.AccNative) == 0) {
keywords[count++] = Keywords.NATIVE;
}
// strictfp
if((modifiers & IConstants.AccStrictfp) == 0) {
keywords[count++] = Keywords.STRICTFP;
}
// synchronized
if((modifiers & IConstants.AccSynchronized) == 0) {
keywords[count++] = Keywords.SYNCHRONIZED;
}
}
if(canBeType) {
keywords[count++] = Keywords.CLASS;
keywords[count++] = Keywords.INTERFACE;
}
} else {
// class
keywords[count++] = Keywords.CLASS;
keywords[count++] = Keywords.INTERFACE;
}
System.arraycopy(keywords, 0, keywords = new char[count][], 0, count);
findKeywords(token, keywords);
}
// Helper method for findMemberTypes(char[], ReferenceBinding, Scope)
private void findMemberTypes(
char[] typeName,
ReferenceBinding[] memberTypes,
ObjectVector typesFound,
ReferenceBinding receiverType,
SourceTypeBinding invocationType) {
// Inherited member types which are hidden by subclasses are filtered out
// No visibility checks can be performed without the scope & invocationSite
int typeLength = typeName.length;
next : for (int m = memberTypes.length; --m >= 0;) {
ReferenceBinding memberType = memberTypes[m];
// if (!wantClasses && memberType.isClass()) continue next;
// if (!wantInterfaces && memberType.isInterface()) continue next;
if (typeLength > memberType.sourceName.length)
continue next;
if (!CharOperation.prefixEquals(typeName, memberType.sourceName, false
/* ignore case */
))
continue next;
if (options.checkVisibility
&& !memberType.canBeSeenBy(receiverType, invocationType))
continue next;
for (int i = typesFound.size; --i >= 0;) {
ReferenceBinding otherType = (ReferenceBinding) typesFound.elementAt(i);
if (memberType == otherType)
continue next;
if (CharOperation.equals(memberType.sourceName, otherType.sourceName, true)) {
if (memberType.enclosingType().isSuperclassOf(otherType.enclosingType()))
continue next;
if (otherType.enclosingType().isInterface())
if (memberType.enclosingType()
.implementsInterface(otherType.enclosingType(), true))
continue next;
if (memberType.enclosingType().isInterface())
if (otherType.enclosingType()
.implementsInterface(memberType.enclosingType(), true))
continue next;
}
}
typesFound.add(memberType);
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(typeName, memberType.sourceName);
relevance += computeRelevanceForExpectingType(memberType);
if (memberType.isClass()) {
relevance += computeRelevanceForClass();
relevance += computeRelevanceForException(memberType.sourceName);
noProposal = false;
requestor.acceptClass(
memberType.qualifiedPackageName(),
memberType.qualifiedSourceName(),
memberType.sourceName(),
memberType.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
} else {
relevance += computeRelevanceForInterface();
noProposal = false;
requestor.acceptInterface(
memberType.qualifiedPackageName(),
memberType.qualifiedSourceName(),
memberType.sourceName(),
memberType.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
}
}
private void findMemberTypes(
char[] typeName,
ReferenceBinding receiverType,
Scope scope,
SourceTypeBinding typeInvocation) {
ReferenceBinding currentType = receiverType;
if (typeName == null)
return;
if (currentType.superInterfaces() == null)
return; // we're trying to find a supertype
ObjectVector typesFound = new ObjectVector();
if (insideQualifiedReference
|| typeName.length == 0) { // do not search up the hierarchy
findMemberTypes(
typeName,
currentType.memberTypes(),
typesFound,
receiverType,
typeInvocation);
return;
}
ReferenceBinding[][] interfacesToVisit = null;
int lastPosition = -1;
do {
ReferenceBinding[] itsInterfaces = currentType.superInterfaces();
if (itsInterfaces != NoSuperInterfaces) {
if (interfacesToVisit == null)
interfacesToVisit = new ReferenceBinding[5][];
if (++lastPosition == interfacesToVisit.length)
System.arraycopy(
interfacesToVisit,
0,
interfacesToVisit = new ReferenceBinding[lastPosition * 2][],
0,
lastPosition);
interfacesToVisit[lastPosition] = itsInterfaces;
}
findMemberTypes(
typeName,
currentType.memberTypes(),
typesFound,
receiverType,
typeInvocation);
currentType = currentType.superclass();
} while (currentType != null);
if (interfacesToVisit != null) {
for (int i = 0; i <= lastPosition; i++) {
ReferenceBinding[] interfaces = interfacesToVisit[i];
for (int j = 0, length = interfaces.length; j < length; j++) {
ReferenceBinding anInterface = interfaces[j];
if ((anInterface.tagBits & TagBits.InterfaceVisited) == 0) {
// if interface as not already been visited
anInterface.tagBits |= TagBits.InterfaceVisited;
findMemberTypes(
typeName,
anInterface.memberTypes(),
typesFound,
receiverType,
typeInvocation);
ReferenceBinding[] itsInterfaces = anInterface.superInterfaces();
if (itsInterfaces != NoSuperInterfaces) {
if (++lastPosition == interfacesToVisit.length)
System.arraycopy(
interfacesToVisit,
0,
interfacesToVisit = new ReferenceBinding[lastPosition * 2][],
0,
lastPosition);
interfacesToVisit[lastPosition] = itsInterfaces;
}
}
}
}
// bit reinitialization
for (int i = 0; i <= lastPosition; i++) {
ReferenceBinding[] interfaces = interfacesToVisit[i];
for (int j = 0, length = interfaces.length; j < length; j++)
interfaces[j].tagBits &= ~TagBits.InterfaceVisited;
}
}
}
private void findIntefacesMethods(
char[] selector,
TypeBinding[] argTypes,
ReferenceBinding receiverType,
ReferenceBinding[] itsInterfaces,
Scope scope,
ObjectVector methodsFound,
boolean onlyStaticMethods,
boolean exactMatch,
boolean isCompletingDeclaration,
InvocationSite invocationSite,
Scope invocationScope,
boolean implicitCall,
boolean superCall) {
if (selector == null)
return;
if (itsInterfaces != NoSuperInterfaces) {
ReferenceBinding[][] interfacesToVisit = new ReferenceBinding[5][];
int lastPosition = 0;
interfacesToVisit[lastPosition] = itsInterfaces;
for (int i = 0; i <= lastPosition; i++) {
ReferenceBinding[] interfaces = interfacesToVisit[i];
for (int j = 0, length = interfaces.length; j < length; j++) {
ReferenceBinding currentType = interfaces[j];
if ((currentType.tagBits & TagBits.InterfaceVisited) == 0) {
// if interface as not already been visited
currentType.tagBits |= TagBits.InterfaceVisited;
MethodBinding[] methods = currentType.availableMethods();
if(methods != null) {
if(isCompletingDeclaration){
findLocalMethodDeclarations(
selector,
methods,
scope,
methodsFound,
onlyStaticMethods,
exactMatch,
receiverType);
} else {
findLocalMethods(
selector,
argTypes,
methods,
scope,
methodsFound,
onlyStaticMethods,
exactMatch,
receiverType,
invocationSite,
invocationScope,
implicitCall,
superCall);
}
}
itsInterfaces = currentType.superInterfaces();
if (itsInterfaces != NoSuperInterfaces) {
if (++lastPosition == interfacesToVisit.length)
System.arraycopy(
interfacesToVisit,
0,
interfacesToVisit = new ReferenceBinding[lastPosition * 2][],
0,
lastPosition);
interfacesToVisit[lastPosition] = itsInterfaces;
}
}
}
}
// bit reinitialization
for (int i = 0; i <= lastPosition; i++) {
ReferenceBinding[] interfaces = interfacesToVisit[i];
for (int j = 0, length = interfaces.length; j < length; j++){
interfaces[j].tagBits &= ~TagBits.InterfaceVisited;
}
}
}
}
private void findImplicitMessageSends(
char[] token,
TypeBinding[] argTypes,
Scope scope,
InvocationSite invocationSite,
Scope invocationScope) {
if (token == null)
return;
boolean staticsOnly = false;
// need to know if we're in a static context (or inside a constructor)
ObjectVector methodsFound = new ObjectVector();
done : while (true) { // done when a COMPILATION_UNIT_SCOPE is found
switch (scope.kind) {
case Scope.METHOD_SCOPE :
// handle the error case inside an explicit constructor call (see MethodScope>>findField)
MethodScope methodScope = (MethodScope) scope;
staticsOnly |= methodScope.isStatic | methodScope.isConstructorCall;
break;
case Scope.CLASS_SCOPE :
ClassScope classScope = (ClassScope) scope;
SourceTypeBinding enclosingType = classScope.referenceContext.binding;
findMethods(
token,
argTypes,
enclosingType,
classScope,
methodsFound,
staticsOnly,
true,
false,
invocationSite,
invocationScope,
true,
false);
staticsOnly |= enclosingType.isStatic();
break;
case Scope.COMPILATION_UNIT_SCOPE :
break done;
}
scope = scope.parent;
}
}
// Helper method for findMethods(char[], TypeBinding[], ReferenceBinding, Scope, ObjectVector, boolean, boolean, boolean)
private void findLocalMethods(
char[] methodName,
TypeBinding[] argTypes,
MethodBinding[] methods,
Scope scope,
ObjectVector methodsFound,
boolean onlyStaticMethods,
boolean exactMatch,
ReferenceBinding receiverType,
InvocationSite invocationSite,
Scope invocationScope,
boolean implicitCall,
boolean superCall) {
ObjectVector newMethodsFound = new ObjectVector();
// Inherited methods which are hidden by subclasses are filtered out
// No visibility checks can be performed without the scope & invocationSite
int methodLength = methodName.length;
int minArgLength = argTypes == null ? 0 : argTypes.length;
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;
//TODO (david) perhaps the relevance of a void method must be lesser than other methods
//if (expectedTypesPtr > -1 && method.returnType == BaseTypes.VoidBinding) continue next;
if (onlyStaticMethods && !method.isStatic()) continue next;
if (options.checkVisibility
&& !method.canBeSeenBy(receiverType, invocationSite, scope)) continue next;
if(superCall && method.isAbstract()) {
methodsFound.add(new Object[]{method, receiverType});
continue next;
}
if (exactMatch) {
if (!CharOperation.equals(methodName, method.selector, false /* ignore case */
))
continue next;
} else {
if (methodLength > method.selector.length)
continue next;
if (!CharOperation.prefixEquals(methodName, method.selector, false
/* ignore case */
))
continue next;
}
if (minArgLength > method.parameters.length)
continue next;
for (int a = minArgLength; --a >= 0;){
if (argTypes[a] != null){ // can be null if it could not be resolved properly
if (!argTypes[a].isCompatibleWith(method.parameters[a])) {
continue next;
}
}
}
boolean prefixRequired = false;
for (int i = methodsFound.size; --i >= 0;) {
Object[] other = (Object[]) methodsFound.elementAt(i);
MethodBinding otherMethod = (MethodBinding) other[0];
ReferenceBinding otherReceiverType = (ReferenceBinding) other[1];
if (method == otherMethod && receiverType == otherReceiverType)
continue next;
if (CharOperation.equals(method.selector, otherMethod.selector, true)
&& method.areParametersEqual(otherMethod)) {
if (method.declaringClass.isSuperclassOf(otherMethod.declaringClass))
continue next;
if (otherMethod.declaringClass.isInterface()) {
if(method.declaringClass == scope.getJavaLangObject())
continue next;
if (!superCall && method
.declaringClass
.implementsInterface(otherMethod.declaringClass, true))
continue next;
}
if (method.declaringClass.isInterface())
if(otherMethod
.declaringClass
.implementsInterface(method.declaringClass,true))
continue next;
if(receiverType.isAnonymousType()) continue next;
if(!superCall) {
prefixRequired = true;
}
}
}
newMethodsFound.add(new Object[]{method, receiverType});
int length = method.parameters.length;
char[][] parameterPackageNames = new char[length][];
char[][] parameterTypeNames = new char[length][];
for (int i = 0; i < length; i++) {
TypeBinding type = method.parameters[i];
parameterPackageNames[i] = type.qualifiedPackageName();
parameterTypeNames[i] = type.qualifiedSourceName();
}
char[][] parameterNames = findMethodParameterNames(method,parameterTypeNames);
char[] completion = CharOperation.NO_CHAR;
int previousStartPosition = startPosition;
// nothing to insert - do not want to replace the existing selector & arguments
if (!exactMatch) {
if (source != null
&& source.length > endPosition
&& source[endPosition] == '(')
completion = method.selector;
else
completion = CharOperation.concat(method.selector, new char[] { '(', ')' });
} else {
if(prefixRequired && (source != null)) {
completion = CharOperation.subarray(source, startPosition, endPosition);
} else {
startPosition = endPosition;
}
}
if(prefixRequired || options.forceImplicitQualification){
char[] prefix = computePrefix(scope.enclosingSourceType(), invocationScope.enclosingSourceType(), method.isStatic());
completion = CharOperation.concat(prefix,completion,'.');
}
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(methodName, method.selector);
relevance += computeRelevanceForExpectingType(method.returnType);
relevance += computeRelevanceForStatic(onlyStaticMethods, method.isStatic());
relevance += computeRelevanceForQualification(prefixRequired);
noProposal = false;
requestor.acceptMethod(
method.declaringClass.qualifiedPackageName(),
method.declaringClass.qualifiedSourceName(),
method.selector,
parameterPackageNames,
parameterTypeNames,
parameterNames,
method.returnType.qualifiedPackageName(),
method.returnType.qualifiedSourceName(),
completion,
method.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
startPosition = previousStartPosition;
}
methodsFound.addAll(newMethodsFound);
}
int computeRelevanceForCaseMatching(char[] token, char[] proposalName){
if (CharOperation.prefixEquals(token, proposalName, true /* do not ignore case */)) {
if(CharOperation.equals(token, proposalName, true /* do not ignore case */)) {
return R_CASE + R_EXACT_NAME;
} else {
return R_CASE;
}
} else {
return 0;
}
}
private int computeRelevanceForClass(){
if(assistNodeIsClass) {
return R_CLASS;
}
return 0;
}
private int computeRelevanceForInterface(){
if(assistNodeIsInterface) {
return R_INTERFACE;
}
return 0;
}
private int computeRelevanceForQualification(boolean prefixRequired) {
if(!prefixRequired && !insideQualifiedReference) {
return R_UNQUALIFIED;
}
if(prefixRequired && insideQualifiedReference) {
return R_QUALIFIED;
}
return 0;
}
private int computeRelevanceForStatic(boolean onlyStatic, boolean isStatic) {
if(insideQualifiedReference && !onlyStatic && !isStatic) {
return R_NON_STATIC;
}
return 0;
}
private int computeRelevanceForStaticOveride(boolean isStatic) {
return isStatic ? 0 : R_NON_STATIC_OVERIDE;
}
private int computeRelevanceForException(char[] proposalName){
if(assistNodeIsException &&
(CharOperation.match(EXCEPTION_PATTERN, proposalName, false) ||
CharOperation.match(ERROR_PATTERN, proposalName, false))) {
return R_EXCEPTION;
}
return 0;
}
private int computeRelevanceForExpectingType(TypeBinding proposalType){
if(expectedTypes != null && proposalType != null) {
for (int i = 0; i <= expectedTypesPtr; i++) {
if(CharOperation.equals(expectedTypes[i].qualifiedPackageName(), proposalType.qualifiedPackageName()) &&
CharOperation.equals(expectedTypes[i].qualifiedSourceName(), proposalType.qualifiedSourceName())) {
return R_EXACT_EXPECTED_TYPE;
}
if((expectedTypesFilter & SUBTYPE) != 0
&& proposalType.isCompatibleWith(expectedTypes[i])) {
return R_EXPECTED_TYPE;
}
if((expectedTypesFilter & SUPERTYPE) != 0
&& expectedTypes[i].isCompatibleWith(proposalType)) {
return R_EXPECTED_TYPE;
}
}
}
return 0;
}
private int computeRelevanceForExpectingType(char[] packageName, char[] typeName){
if(expectedTypes != null) {
for (int i = 0; i <= expectedTypesPtr; i++) {
if(CharOperation.equals(expectedTypes[i].qualifiedPackageName(), packageName) &&
CharOperation.equals(expectedTypes[i].qualifiedSourceName(), typeName)) {
return R_EXACT_EXPECTED_TYPE;
}
}
}
return 0;
}
int computeRelevanceForInterestingProposal(){
return computeRelevanceForInterestingProposal(null);
}
private int computeRelevanceForInterestingProposal(Binding binding){
if(uninterestingBindings != null) {
for (int i = 0; i <= uninterestingBindingsPtr; i++) {
if(uninterestingBindings[i] == binding) {
return 0;
}
}
}
return R_INTERESTING;
}
private void computeUninterestingBindings(ASTNode parent, Scope scope){
if(parent instanceof LocalDeclaration) {
addUninterestingBindings(((LocalDeclaration)parent).binding);
} else if (parent instanceof FieldDeclaration) {
addUninterestingBindings(((FieldDeclaration)parent).binding);
}
}
// Helper method for findMethods(char[], MethodBinding[], Scope, ObjectVector, boolean, boolean, boolean, TypeBinding)
private void findLocalMethodDeclarations(
char[] methodName,
MethodBinding[] methods,
Scope scope,
ObjectVector methodsFound,
// boolean noVoidReturnType, how do you know?
boolean onlyStaticMethods,
boolean exactMatch,
ReferenceBinding receiverType) {
ObjectVector newMethodsFound = new ObjectVector();
// Inherited methods which are hidden by subclasses are filtered out
// No visibility checks can be performed without the scope & invocationSite
int methodLength = methodName.length;
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 (method.isFinal()) continue next;
// if (noVoidReturnType && method.returnType == BaseTypes.VoidBinding) continue next;
if(method.isStatic()) {
if(receiverType.isAnonymousType()) continue next;
if(receiverType.isMemberType() && !receiverType.isStatic()) continue next;
if(receiverType.isLocalType()) continue next;
} else {
if(onlyStaticMethods) continue next;
}
if (options.checkVisibility
&& !method.canBeSeenBy(receiverType, FakeInvocationSite , scope)) continue next;
if (exactMatch) {
if (!CharOperation.equals(methodName, method.selector, false /* ignore case */
))
continue next;
} else {
if (methodLength > method.selector.length)
continue next;
if (!CharOperation.prefixEquals(methodName, method.selector, false
/* ignore case */
))
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)
&& method.areParametersEqual(otherMethod)) {
continue next;
}
}
newMethodsFound.add(method);
int length = method.parameters.length;
char[][] parameterPackageNames = new char[length][];
char[][] parameterTypeNames = new char[length][];
for (int i = 0; i < length; i++) {
TypeBinding type = method.parameters[i];
parameterPackageNames[i] = type.qualifiedPackageName();
parameterTypeNames[i] = type.qualifiedSourceName();
}
char[][] parameterNames = findMethodParameterNames(method,parameterTypeNames);
StringBuffer completion = new StringBuffer(10);
// flush uninteresting modifiers
int insertedModifiers = method.modifiers & ~(IConstants.AccNative | IConstants.AccAbstract);
if (!exactMatch) {
if(insertedModifiers != CompilerModifiers.AccDefault){
ASTNode.printModifiers(insertedModifiers, completion);
}
char[] returnPackageName = method.returnType.qualifiedPackageName();
char[] returnTypeName = method.returnType.qualifiedSourceName();
if(mustQualifyType(returnPackageName, returnTypeName)) {
completion.append(CharOperation.concat(returnPackageName, returnTypeName,'.'));
} else {
completion.append(method.returnType.sourceName());
}
completion.append(' ');
completion.append(method.selector);
completion.append('(');
for(int i = 0; i < length ; i++){
if(mustQualifyType(parameterPackageNames[i], parameterTypeNames[i])){
completion.append(CharOperation.concat(parameterPackageNames[i], parameterTypeNames[i], '.'));
} else {
completion.append(parameterTypeNames[i]);
}
completion.append(' ');
if(parameterNames != null){
completion.append(parameterNames[i]);
} else {
completion.append('%');
}
if(i != (length - 1))
completion.append(',');
}
completion.append(')');
ReferenceBinding[] exceptions = method.thrownExceptions;
if (exceptions != null && exceptions.length > 0){
completion.append(' ');
completion.append(THROWS);
completion.append(' ');
for(int i = 0; i < exceptions.length ; i++){
ReferenceBinding exception = exceptions[i];
char[] exceptionPackageName = exception.qualifiedPackageName();
char[] exceptionTypeName = exception.qualifiedSourceName();
if(i != 0){
completion.append(',');
completion.append(' ');
}
if(mustQualifyType(exceptionPackageName, exceptionTypeName)){
completion.append(CharOperation.concat(exceptionPackageName, exceptionTypeName, '.'));
} else {
completion.append(exception.sourceName());
}
}
}
}
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(methodName, method.selector);
relevance += computeRelevanceForStaticOveride(method.isStatic());
if(method.isAbstract()) relevance += R_ABSTRACT_METHOD;
noProposal = false;
requestor.acceptMethodDeclaration(
method.declaringClass.qualifiedPackageName(),
method.declaringClass.qualifiedSourceName(),
method.selector,
parameterPackageNames,
parameterTypeNames,
parameterNames,
method.returnType.qualifiedPackageName(),
method.returnType.qualifiedSourceName(),
completion.toString().toCharArray(),
method.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
methodsFound.addAll(newMethodsFound);
}
private void findMethods(
char[] selector,
TypeBinding[] argTypes,
ReferenceBinding receiverType,
Scope scope,
ObjectVector methodsFound,
boolean onlyStaticMethods,
boolean exactMatch,
boolean isCompletingDeclaration,
InvocationSite invocationSite,
Scope invocationScope,
boolean implicitCall,
boolean superCall) {
if (selector == null)
return;
if(isCompletingDeclaration) {
MethodBinding[] methods = receiverType.availableMethods();
if (methods != null){
for (int i = 0; i < methods.length; i++) {
if(!methods[i].isDefaultAbstract()) {
methodsFound.add(methods[i]);
}
}
}
}
ReferenceBinding currentType = receiverType;
if (receiverType.isInterface()) {
if(isCompletingDeclaration) {
findIntefacesMethods(
selector,
argTypes,
receiverType,
currentType.superInterfaces(),
scope,
methodsFound,
onlyStaticMethods,
exactMatch,
isCompletingDeclaration,
invocationSite,
invocationScope,
implicitCall,
superCall);
} else {
findIntefacesMethods(
selector,
argTypes,
receiverType,
new ReferenceBinding[]{currentType},
scope,
methodsFound,
onlyStaticMethods,
exactMatch,
isCompletingDeclaration,
invocationSite,
invocationScope,
implicitCall,
superCall);
}
currentType = scope.getJavaLangObject();
} else {
if(isCompletingDeclaration){
findIntefacesMethods(
selector,
argTypes,
receiverType,
currentType.superInterfaces(),
scope,
methodsFound,
onlyStaticMethods,
exactMatch,
isCompletingDeclaration,
invocationSite,
invocationScope,
implicitCall,
superCall);
currentType = receiverType.superclass();
}
}
boolean hasPotentialDefaultAbstractMethods = true;
while (currentType != null) {
MethodBinding[] methods = currentType.availableMethods();
if(methods != null) {
if(isCompletingDeclaration){
findLocalMethodDeclarations(
selector,
methods,
scope,
methodsFound,
onlyStaticMethods,
exactMatch,
receiverType);
} else{
findLocalMethods(
selector,
argTypes,
methods,
scope,
methodsFound,
onlyStaticMethods,
exactMatch,
receiverType,
invocationSite,
invocationScope,
implicitCall,
superCall);
}
}
if(hasPotentialDefaultAbstractMethods && currentType.isAbstract()){
findIntefacesMethods(
selector,
argTypes,
receiverType,
currentType.superInterfaces(),
scope,
methodsFound,
onlyStaticMethods,
exactMatch,
isCompletingDeclaration,
invocationSite,
invocationScope,
implicitCall,
superCall);
} else {
hasPotentialDefaultAbstractMethods = false;
}
currentType = currentType.superclass();
}
}
private char[][] findMethodParameterNames(MethodBinding method, char[][] parameterTypeNames){
ReferenceBinding bindingType = method.declaringClass;
char[][] parameterNames = null;
int length = parameterTypeNames.length;
if (length == 0){
return CharOperation.NO_CHAR_CHAR;
}
// look into the corresponding unit if it is available
if (bindingType instanceof SourceTypeBinding){
SourceTypeBinding sourceType = (SourceTypeBinding) bindingType;
if (sourceType.scope != null){
TypeDeclaration parsedType;
if ((parsedType = sourceType.scope.referenceContext) != null){
AbstractMethodDeclaration methodDecl = parsedType.declarationOf(method);
if (methodDecl != null){
Argument[] arguments = methodDecl.arguments;
parameterNames = new char[length][];
for(int i = 0 ; i < length ; i++){
parameterNames[i] = arguments[i].name;
}
}
}
}
}
// look into the model
if(parameterNames == null){
char[] compoundName = CharOperation.concatWith(bindingType.compoundName, '.');
Object type = typeCache.get(compoundName);
ISourceType sourceType = null;
if(type != null) {
if(type instanceof ISourceType) {
sourceType = (ISourceType) type;
}
} else {
NameEnvironmentAnswer answer = nameEnvironment.findType(bindingType.compoundName);
if(answer != null && answer.isSourceType()) {
sourceType = answer.getSourceTypes()[0];
typeCache.put(compoundName, sourceType);
}
}
if(sourceType != null) {
ISourceMethod[] sourceMethods = sourceType.getMethods();
int len = sourceMethods == null ? 0 : sourceMethods.length;
for(int i = 0; i < len ; i++){
ISourceMethod sourceMethod = sourceMethods[i];
char[][] argTypeNames = sourceMethod.getArgumentTypeNames();
if(argTypeNames != null &&
CharOperation.equals(method.selector,sourceMethod.getSelector()) &&
CharOperation.equals(argTypeNames,parameterTypeNames)){
parameterNames = sourceMethod.getArgumentNames();
break;
}
}
}
}
return parameterNames;
}
private void findNestedTypes(
char[] typeName,
SourceTypeBinding currentType,
Scope scope) {
if (typeName == null)
return;
int typeLength = typeName.length;
while (scope != null) { // done when a COMPILATION_UNIT_SCOPE is found
switch (scope.kind) {
case Scope.METHOD_SCOPE :
case Scope.BLOCK_SCOPE :
BlockScope blockScope = (BlockScope) scope;
next : for (int i = 0, length = blockScope.subscopeCount; i < length; i++) {
if (blockScope.subscopes[i] instanceof ClassScope) {
SourceTypeBinding localType =
((ClassScope) blockScope.subscopes[i]).referenceContext.binding;
if (!localType.isAnonymousType()) {
if (typeLength > localType.sourceName.length)
continue next;
if (!CharOperation.prefixEquals(typeName, localType.sourceName, false
/* ignore case */
))
continue next;
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(typeName, localType.sourceName);
relevance += computeRelevanceForExpectingType(localType);
relevance += computeRelevanceForException(localType.sourceName);
relevance += computeRelevanceForClass();
relevance += computeRelevanceForQualification(false);
noProposal = false;
requestor.acceptClass(
localType.qualifiedPackageName(),
localType.sourceName,
localType.sourceName,
localType.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
}
}
break;
case Scope.CLASS_SCOPE :
findMemberTypes(typeName, scope.enclosingSourceType(), scope, currentType);
if (typeLength == 0)
return; // do not search outside the class scope if no prefix was provided
break;
case Scope.COMPILATION_UNIT_SCOPE :
return;
}
scope = scope.parent;
}
}
private void findPackages(CompletionOnPackageReference packageStatement) {
completionToken = CharOperation.concatWith(packageStatement.tokens, '.');
if (completionToken.length == 0)
return;
setSourceRange(packageStatement.sourceStart, packageStatement.sourceEnd);
nameEnvironment.findPackages(CharOperation.toLowerCase(completionToken), this);
}
private void findTypesAndPackages(char[] token, Scope scope) {
if (token == null)
return;
if (scope.enclosingSourceType() != null)
findNestedTypes(token, scope.enclosingSourceType(), scope);
if (unitScope != null) {
int typeLength = token.length;
SourceTypeBinding[] types = unitScope.topLevelTypes;
for (int i = 0, length = types.length; i < length; i++) {
SourceTypeBinding sourceType = types[i];
if (typeLength > sourceType.sourceName.length) continue;
if (!CharOperation.prefixEquals(token, sourceType.sourceName, false)) continue;
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(token, sourceType.sourceName);
relevance += computeRelevanceForExpectingType(sourceType);
relevance += computeRelevanceForQualification(false);
if (sourceType.isClass()){
relevance += computeRelevanceForClass();
relevance += computeRelevanceForException(sourceType.sourceName);
noProposal = false;
requestor.acceptClass(
sourceType.qualifiedPackageName(),
sourceType.sourceName(),
sourceType.sourceName(),
sourceType.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
} else {
relevance += computeRelevanceForInterface();
noProposal = false;
requestor.acceptInterface(
sourceType.qualifiedPackageName(),
sourceType.sourceName(),
sourceType.sourceName(),
sourceType.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
}
}
if (token.length == 0) {
if(expectedTypesPtr > -1) {
next : for (int i = 0; i <= expectedTypesPtr; i++) {
if(expectedTypes[i] instanceof ReferenceBinding) {
ReferenceBinding refBinding = (ReferenceBinding)expectedTypes[i];
boolean inSameUnit = unitScope.isDefinedInSameUnit(refBinding);
// top level types of the current unit are already proposed.
if(!inSameUnit || (inSameUnit && refBinding.isMemberType())) {
char[] packageName = refBinding.qualifiedPackageName();
char[] typeName = refBinding.sourceName();
char[] completionName = typeName;
boolean isQualified = false;
if (!insideQualifiedReference && !refBinding.isMemberType()) {
if (mustQualifyType(packageName, typeName)) {
if (packageName == null || packageName.length == 0)
if (unitScope != null && unitScope.fPackage.compoundName != CharOperation.NO_CHAR_CHAR)
continue next; // ignore types from the default package from outside it
completionName = CharOperation.concat(packageName, typeName, '.');
isQualified = true;
}
}
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(token, typeName);
relevance += computeRelevanceForExpectingType(refBinding);
relevance += computeRelevanceForQualification(isQualified);
if(refBinding.isClass()) {
relevance += computeRelevanceForClass();
noProposal = false;
requestor.acceptClass(
packageName,
typeName,
completionName,
refBinding.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
} else if (refBinding.isInterface()) {
relevance += computeRelevanceForInterface();
noProposal = false;
requestor.acceptInterface(
packageName,
typeName,
completionName,
refBinding.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
}
}
}
}
} else {
findKeywords(token, baseTypes);
nameEnvironment.findTypes(token, this);
nameEnvironment.findPackages(token, this);
}
}
private void findTypesAndSubpackages(
char[] token,
PackageBinding packageBinding) {
char[] qualifiedName =
CharOperation.concatWith(packageBinding.compoundName, token, '.');
if (token == null || token.length == 0) {
int length = qualifiedName.length;
System.arraycopy(
qualifiedName,
0,
qualifiedName = new char[length + 1],
0,
length);
qualifiedName[length] = '.';
}
this.qualifiedCompletionToken = qualifiedName;
if (unitScope != null) {
int typeLength = qualifiedName.length;
SourceTypeBinding[] types = unitScope.topLevelTypes;
for (int i = 0, length = types.length; i < length; i++) {
SourceTypeBinding sourceType = types[i];
char[] qualifiedSourceTypeName = CharOperation.concatWith(sourceType.compoundName, '.');
if (typeLength > qualifiedSourceTypeName.length) continue;
if (!(packageBinding == sourceType.getPackage())) continue;
if (!CharOperation.prefixEquals(qualifiedName, qualifiedSourceTypeName, false)) continue;
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(qualifiedName, qualifiedSourceTypeName);
relevance += computeRelevanceForExpectingType(sourceType);
relevance += computeRelevanceForQualification(false);
if (sourceType.isClass()){
relevance += computeRelevanceForClass();
relevance += computeRelevanceForException(sourceType.sourceName);
noProposal = false;
requestor.acceptClass(
sourceType.qualifiedPackageName(),
sourceType.sourceName(),
sourceType.sourceName(),
sourceType.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
} else {
relevance += computeRelevanceForInterface();
noProposal = false;
requestor.acceptInterface(
sourceType.qualifiedPackageName(),
sourceType.sourceName(),
sourceType.sourceName(),
sourceType.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
}
}
nameEnvironment.findTypes(qualifiedName, this);
nameEnvironment.findPackages(qualifiedName, this);
}
private void findVariablesAndMethods(
char[] token,
Scope scope,
InvocationSite invocationSite,
Scope invocationScope) {
if (token == null)
return;
// Should local variables hide fields from the receiver type or any of its enclosing types?
// we know its an implicit field/method access... see BlockScope getBinding/getImplicitMethod
boolean staticsOnly = false;
// need to know if we're in a static context (or inside a constructor)
int tokenLength = token.length;
ObjectVector localsFound = new ObjectVector();
ObjectVector fieldsFound = new ObjectVector();
ObjectVector methodsFound = new ObjectVector();
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;
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 (tokenLength > local.name.length)
continue next;
if (!CharOperation.prefixEquals(token, local.name, false /* ignore case */
))
continue next;
if (local.isSecret())
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);
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal(local);
relevance += computeRelevanceForCaseMatching(token, local.name);
relevance += computeRelevanceForExpectingType(local.type);
relevance += computeRelevanceForQualification(false);
noProposal = false;
requestor.acceptLocalVariable(
local.name,
local.type == null
? CharOperation.NO_CHAR
: local.type.qualifiedPackageName(),
local.type == null
? local.declaration.type.toString().toCharArray()
: local.type.qualifiedSourceName(),
local.modifiers,
startPosition - offset,
endPosition - offset,
relevance);
}
break;
case Scope.COMPILATION_UNIT_SCOPE :
break done1;
}
currentScope = currentScope.parent;
}
currentScope = scope;
done2 : while (true) { // done when a COMPILATION_UNIT_SCOPE is found
switch (currentScope.kind) {
case Scope.CLASS_SCOPE :
ClassScope classScope = (ClassScope) currentScope;
SourceTypeBinding enclosingType = classScope.referenceContext.binding;
/* if (tokenLength == 0) { // only search inside the type itself if no prefix was provided
findFields(token, enclosingType.fields(), classScope, fieldsFound, staticsOnly);
findMethods(token, enclosingType.methods(), classScope, methodsFound, staticsOnly, false);
break done;
} else { */
findFields(
token,
enclosingType,
classScope,
fieldsFound,
localsFound,
staticsOnly,
invocationSite,
invocationScope,
true);
findMethods(
token,
null,
enclosingType,
classScope,
methodsFound,
staticsOnly,
false,
false,
invocationSite,
invocationScope,
true,
false);
staticsOnly |= enclosingType.isStatic();
// }
break;
case Scope.COMPILATION_UNIT_SCOPE :
break done2;
}
currentScope = currentScope.parent;
}
}
// Helper method for private void findVariableNames(char[] name, TypeReference type )
private void findVariableName(
char[] token,
char[] qualifiedPackageName,
char[] qualifiedSourceName,
char[] sourceName,
char[][] excludeNames,
int dim,
int kind,
int modifiers){
if(sourceName == null || sourceName.length == 0)
return;
// compute variable name for non base type
final char[] displayName;
if (dim > 0){
int l = qualifiedSourceName.length;
displayName = new char[l+(2*dim)];
System.arraycopy(qualifiedSourceName, 0, displayName, 0, l);
for(int i = 0; i < dim; i++){
displayName[l+(i*2)] = '[';
displayName[l+(i*2)+1] = ']';
}
} else {
displayName = qualifiedSourceName;
}
final char[] t = token;
final char[] q = qualifiedPackageName;
INamingRequestor namingRequestor = new INamingRequestor() {
public void acceptNameWithPrefixAndSuffix(char[] name, boolean isFirstPrefix, boolean isFirstSuffix) {
accept( name,
(isFirstPrefix ? R_NAME_FIRST_PREFIX : R_NAME_PREFIX) + (isFirstSuffix ? R_NAME_FIRST_SUFFIX : R_NAME_SUFFIX));
}
public void acceptNameWithPrefix(char[] name, boolean isFirstPrefix) {
accept(name, isFirstPrefix ? R_NAME_FIRST_PREFIX : R_NAME_PREFIX);
}
public void acceptNameWithSuffix(char[] name, boolean isFirstSuffix) {
accept(name, isFirstSuffix ? R_NAME_FIRST_SUFFIX : R_NAME_SUFFIX);
}
public void acceptNameWithoutPrefixAndSuffix(char[] name) {
accept(name, 0);
}
void accept(char[] name, int prefixAndSuffixRelevance){
if (CharOperation.prefixEquals(t, name, false)) {
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
relevance += computeRelevanceForCaseMatching(t, name);
relevance += prefixAndSuffixRelevance;
// accept result
noProposal = false;
requestor.acceptVariableName(
q,
displayName,
name,
name,
startPosition - offset,
endPosition - offset,
relevance);
}
}
};
switch (kind) {
case FIELD :
InternalNamingConventions.suggestFieldNames(
javaProject,
qualifiedPackageName,
qualifiedSourceName,
dim,
modifiers,
excludeNames,
namingRequestor);
break;
case LOCAL :
InternalNamingConventions.suggestLocalVariableNames(
javaProject,
qualifiedPackageName,
qualifiedSourceName,
dim,
excludeNames,
namingRequestor);
break;
case ARGUMENT :
InternalNamingConventions.suggestArgumentNames(
javaProject,
qualifiedPackageName,
qualifiedSourceName,
dim,
excludeNames,
namingRequestor);
break;
}
}
private void findVariableNames(char[] name, TypeReference type , char[][] excludeNames, int kind, int modifiers){
if(type != null &&
type.resolvedType != null &&
type.resolvedType.problemId() == ProblemReasons.NoError){
TypeBinding tb = type.resolvedType;
findVariableName(
name,
tb.leafComponentType().qualifiedPackageName(),
tb.leafComponentType().qualifiedSourceName(),
tb.leafComponentType().sourceName(),
excludeNames,
type.dimensions(),
kind,
modifiers);
}/* else {
char[][] typeName = type.getTypeName();
findVariableName(
name,
NoChar,
CharOperation.concatWith(typeName, '.'),
typeName[typeName.length - 1],
excludeNames,
type.dimensions());
}*/
}
public AssistParser getParser() {
return parser;
}
protected void reset() {
super.reset();
this.knownPkgs = new HashtableOfObject(10);
this.knownTypes = new HashtableOfObject(10);
}
private void setSourceRange(int start, int end) {
this.setSourceRange(start, end, true);
}
private void setSourceRange(int start, int end, boolean emptyTokenAdjstment) {
this.startPosition = start;
if(emptyTokenAdjstment) {
int endOfEmptyToken = ((CompletionScanner)parser.scanner).endOfEmptyToken;
this.endPosition = endOfEmptyToken > end ? endOfEmptyToken + 1 : end + 1;
} else {
this.endPosition = end + 1;
}
}
int computeBaseRelevance(){
return R_DEFAULT;
}
private void computeExpectedTypes(ASTNode parent, Scope scope){
// default filter
expectedTypesFilter = SUBTYPE;
// find types from parent
if(parent instanceof AbstractVariableDeclaration) {
AbstractVariableDeclaration variable = (AbstractVariableDeclaration)parent;
TypeBinding binding = variable.type.resolvedType;
if(binding != null) {
if(!(variable.initialization instanceof ArrayInitializer)) {
addExpectedType(binding);
}
}
} else if(parent instanceof Assignment) {
TypeBinding binding = ((Assignment)parent).resolvedType;
if(binding != null) {
addExpectedType(binding);
}
} else if(parent instanceof ReturnStatement) {
if(scope.methodScope().referenceContext instanceof AbstractMethodDeclaration) {
MethodBinding methodBinding = ((AbstractMethodDeclaration) scope.methodScope().referenceContext).binding;
TypeBinding binding = methodBinding == null ? null : methodBinding.returnType;
if(binding != null) {
addExpectedType(binding);
}
}
} else if(parent instanceof CastExpression) {
Expression e = ((CastExpression)parent).type;
TypeBinding binding = e.resolvedType;
if(binding != null){
addExpectedType(binding);
expectedTypesFilter = SUBTYPE | SUPERTYPE;
}
} else if(parent instanceof MessageSend) {
MessageSend messageSend = (MessageSend) parent;
if(messageSend.receiverType instanceof ReferenceBinding) {
ReferenceBinding binding = (ReferenceBinding)messageSend.receiverType;
boolean isStatic = messageSend.receiver.isTypeReference();
while(binding != null) {
computeExpectedTypesForMessageSend(
binding,
messageSend.selector,
messageSend.arguments,
(ReferenceBinding)messageSend.receiverType,
scope,
messageSend,
isStatic);
computeExpectedTypesForMessageSendForInterface(
binding,
messageSend.selector,
messageSend.arguments,
(ReferenceBinding)messageSend.receiverType,
scope,
messageSend,
isStatic);
binding = binding.superclass();
}
}
} else if(parent instanceof AllocationExpression) {
AllocationExpression allocationExpression = (AllocationExpression) parent;
ReferenceBinding binding = (ReferenceBinding)allocationExpression.type.resolvedType;
if(binding != null) {
computeExpectedTypesForAllocationExpression(
binding,
allocationExpression.arguments,
scope,
allocationExpression);
}
} else if(parent instanceof OperatorExpression) {
int operator = (parent.bits & ASTNode.OperatorMASK) >> ASTNode.OperatorSHIFT;
if(parent instanceof ConditionalExpression) {
// for future use
} else if(parent instanceof InstanceOfExpression) {
InstanceOfExpression e = (InstanceOfExpression) parent;
TypeBinding binding = e.expression.resolvedType;
if(binding != null){
addExpectedType(binding);
expectedTypesFilter = SUBTYPE | SUPERTYPE;
}
} else if(parent instanceof BinaryExpression) {
switch(operator) {
case OperatorIds.PLUS :
addExpectedType(BaseTypes.ShortBinding);
addExpectedType(BaseTypes.IntBinding);
addExpectedType(BaseTypes.LongBinding);
addExpectedType(BaseTypes.FloatBinding);
addExpectedType(BaseTypes.DoubleBinding);
addExpectedType(BaseTypes.CharBinding);
addExpectedType(BaseTypes.ByteBinding);
addExpectedType(scope.getJavaLangString());
break;
case OperatorIds.AND_AND :
case OperatorIds.OR_OR :
case OperatorIds.XOR :
addExpectedType(BaseTypes.BooleanBinding);
break;
default :
addExpectedType(BaseTypes.ShortBinding);
addExpectedType(BaseTypes.IntBinding);
addExpectedType(BaseTypes.LongBinding);
addExpectedType(BaseTypes.FloatBinding);
addExpectedType(BaseTypes.DoubleBinding);
addExpectedType(BaseTypes.CharBinding);
addExpectedType(BaseTypes.ByteBinding);
break;
}
} else if(parent instanceof UnaryExpression) {
switch(operator) {
case OperatorIds.NOT :
addExpectedType(BaseTypes.BooleanBinding);
break;
case OperatorIds.TWIDDLE :
addExpectedType(BaseTypes.ShortBinding);
addExpectedType(BaseTypes.IntBinding);
addExpectedType(BaseTypes.LongBinding);
addExpectedType(BaseTypes.CharBinding);
addExpectedType(BaseTypes.ByteBinding);
break;
case OperatorIds.PLUS :
case OperatorIds.MINUS :
case OperatorIds.PLUS_PLUS :
case OperatorIds.MINUS_MINUS :
addExpectedType(BaseTypes.ShortBinding);
addExpectedType(BaseTypes.IntBinding);
addExpectedType(BaseTypes.LongBinding);
addExpectedType(BaseTypes.FloatBinding);
addExpectedType(BaseTypes.DoubleBinding);
addExpectedType(BaseTypes.CharBinding);
addExpectedType(BaseTypes.ByteBinding);
break;
}
}
} else if(parent instanceof ArrayReference) {
addExpectedType(BaseTypes.ShortBinding);
addExpectedType(BaseTypes.IntBinding);
addExpectedType(BaseTypes.LongBinding);
}
if(expectedTypesPtr + 1 != expectedTypes.length) {
System.arraycopy(expectedTypes, 0, expectedTypes = new TypeBinding[expectedTypesPtr + 1], 0, expectedTypesPtr + 1);
}
}
private void computeExpectedTypesForAllocationExpression(
ReferenceBinding binding,
Expression[] arguments,
Scope scope,
InvocationSite invocationSite) {
MethodBinding[] methods = binding.availableMethods();
nextMethod : for (int i = 0; i < methods.length; i++) {
MethodBinding method = methods[i];
if (!method.isConstructor()) continue nextMethod;
if (method.isSynthetic()) continue nextMethod;
if (options.checkVisibility && !method.canBeSeenBy(invocationSite, scope)) continue nextMethod;
TypeBinding[] parameters = method.parameters;
if(parameters.length < arguments.length)
continue nextMethod;
int length = arguments.length - 1;
for (int j = 0; j < length; j++) {
Expression argument = arguments[j];
TypeBinding argType = argument.resolvedType;
if(argType != null && !argType.isCompatibleWith(parameters[j]))
continue nextMethod;
}
TypeBinding expectedType = method.parameters[arguments.length - 1];
if(expectedType != null) {
addExpectedType(expectedType);
}
}
}
private void computeExpectedTypesForMessageSendForInterface(
ReferenceBinding binding,
char[] selector,
Expression[] arguments,
ReferenceBinding receiverType,
Scope scope,
InvocationSite invocationSite,
boolean isStatic) {
ReferenceBinding[] itsInterfaces = binding.superInterfaces();
if (itsInterfaces != NoSuperInterfaces) {
ReferenceBinding[][] interfacesToVisit = new ReferenceBinding[5][];
int lastPosition = 0;
interfacesToVisit[lastPosition] = itsInterfaces;
for (int i = 0; i <= lastPosition; i++) {
ReferenceBinding[] interfaces = interfacesToVisit[i];
for (int j = 0, length = interfaces.length; j < length; j++) {
ReferenceBinding currentType = interfaces[j];
if ((currentType.tagBits & TagBits.InterfaceVisited) == 0) {
// if interface as not already been visited
currentType.tagBits |= TagBits.InterfaceVisited;
computeExpectedTypesForMessageSend(
currentType,
selector,
arguments,
receiverType,
scope,
invocationSite,
isStatic);
itsInterfaces = currentType.superInterfaces();
if (itsInterfaces != NoSuperInterfaces) {
if (++lastPosition == interfacesToVisit.length)
System.arraycopy(
interfacesToVisit,
0,
interfacesToVisit = new ReferenceBinding[lastPosition * 2][],
0,
lastPosition);
interfacesToVisit[lastPosition] = itsInterfaces;
}
}
}
}
// bit reinitialization
for (int i = 0; i <= lastPosition; i++) {
ReferenceBinding[] interfaces = interfacesToVisit[i];
for (int j = 0, length = interfaces.length; j < length; j++){
interfaces[j].tagBits &= ~TagBits.InterfaceVisited;
}
}
}
}
private void computeExpectedTypesForMessageSend(
ReferenceBinding binding,
char[] selector,
Expression[] arguments,
ReferenceBinding receiverType,
Scope scope,
InvocationSite invocationSite,
boolean isStatic) {
MethodBinding[] methods = binding.availableMethods();
nextMethod : for (int i = 0; i < methods.length; i++) {
MethodBinding method = methods[i];
if (method.isSynthetic()) continue nextMethod;
if (method.isDefaultAbstract()) continue nextMethod;
if (method.isConstructor()) continue nextMethod;
if (isStatic && !method.isStatic()) continue nextMethod;
if (options.checkVisibility && !method.canBeSeenBy(receiverType, invocationSite, scope)) continue nextMethod;
if(!CharOperation.equals(method.selector, selector)) continue nextMethod;
TypeBinding[] parameters = method.parameters;
if(parameters.length < arguments.length)
continue nextMethod;
int length = arguments.length - 1;
for (int j = 0; j < length; j++) {
Expression argument = arguments[j];
TypeBinding argType = argument.resolvedType;
if(argType != null && !argType.isCompatibleWith(parameters[j]))
continue nextMethod;
}
TypeBinding expectedType = method.parameters[arguments.length - 1];
if(expectedType != null) {
addExpectedType(expectedType);
}
}
}
private void addExpectedType(TypeBinding type){
if (type == null || !type.isValidBinding()) return;
int length = this.expectedTypes.length;
if (++this.expectedTypesPtr >= length)
System.arraycopy(this.expectedTypes, 0, this.expectedTypes = new TypeBinding[length * 2], 0, length);
this.expectedTypes[this.expectedTypesPtr] = type;
}
private void addUninterestingBindings(Binding binding){
if (binding == null) return;
int length = this.uninterestingBindings.length;
if (++this.uninterestingBindingsPtr >= length)
System.arraycopy(this.uninterestingBindings, 0, this.uninterestingBindings = new Binding[length * 2], 0, length);
this.uninterestingBindings[this.uninterestingBindingsPtr] = binding;
}
private char[] computePrefix(SourceTypeBinding declarationType, SourceTypeBinding invocationType, boolean isStatic){
StringBuffer completion = new StringBuffer(10);
if (isStatic) {
completion.append(declarationType.sourceName());
} else if (declarationType == invocationType) {
completion.append(THIS);
} else {
if (!declarationType.isNestedType()) {
completion.append(declarationType.sourceName());
completion.append('.');
completion.append(THIS);
} else if (!declarationType.isAnonymousType()) {
completion.append(declarationType.sourceName());
completion.append('.');
completion.append(THIS);
}
}
return completion.toString().toCharArray();
}
private void proposeNewMethod(char[] token, ReferenceBinding reference) {
if(requestor instanceof IExtendedCompletionRequestor) {
IExtendedCompletionRequestor extendedRequestor = (IExtendedCompletionRequestor) requestor;
int relevance = computeBaseRelevance();
relevance += computeRelevanceForInterestingProposal();
extendedRequestor.acceptPotentialMethodDeclaration(
reference.qualifiedPackageName(),
reference.qualifiedSourceName(),
token,
startPosition - offset,
endPosition - offset,
relevance);
}
}
}