/*******************************************************************************
* Copyright (c) 2000, 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Renaud Waldura <renaud+eclipse@waldura.com> - New class/interface with wizard
*******************************************************************************/
package org.eclipse.wst.jsdt.internal.ui.text.correction;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.ISharedImages;
import org.eclipse.wst.jsdt.core.IJavaScriptElement;
import org.eclipse.wst.jsdt.core.IJavaScriptProject;
import org.eclipse.wst.jsdt.core.IJavaScriptUnit;
import org.eclipse.wst.jsdt.core.IPackageFragment;
import org.eclipse.wst.jsdt.core.IType;
import org.eclipse.wst.jsdt.core.JavaScriptModelException;
import org.eclipse.wst.jsdt.core.Signature;
import org.eclipse.wst.jsdt.core.dom.AST;
import org.eclipse.wst.jsdt.core.dom.ASTMatcher;
import org.eclipse.wst.jsdt.core.dom.ASTNode;
import org.eclipse.wst.jsdt.core.dom.ArrayType;
import org.eclipse.wst.jsdt.core.dom.Assignment;
import org.eclipse.wst.jsdt.core.dom.BodyDeclaration;
import org.eclipse.wst.jsdt.core.dom.ClassInstanceCreation;
import org.eclipse.wst.jsdt.core.dom.ConstructorInvocation;
import org.eclipse.wst.jsdt.core.dom.Expression;
import org.eclipse.wst.jsdt.core.dom.FieldAccess;
import org.eclipse.wst.jsdt.core.dom.FunctionDeclaration;
import org.eclipse.wst.jsdt.core.dom.FunctionInvocation;
import org.eclipse.wst.jsdt.core.dom.IBinding;
import org.eclipse.wst.jsdt.core.dom.IFunctionBinding;
import org.eclipse.wst.jsdt.core.dom.IPackageBinding;
import org.eclipse.wst.jsdt.core.dom.ITypeBinding;
import org.eclipse.wst.jsdt.core.dom.IVariableBinding;
import org.eclipse.wst.jsdt.core.dom.JavaScriptUnit;
import org.eclipse.wst.jsdt.core.dom.Modifier;
import org.eclipse.wst.jsdt.core.dom.Name;
import org.eclipse.wst.jsdt.core.dom.ParenthesizedExpression;
import org.eclipse.wst.jsdt.core.dom.QualifiedName;
import org.eclipse.wst.jsdt.core.dom.SimpleName;
import org.eclipse.wst.jsdt.core.dom.SimpleType;
import org.eclipse.wst.jsdt.core.dom.StructuralPropertyDescriptor;
import org.eclipse.wst.jsdt.core.dom.SuperConstructorInvocation;
import org.eclipse.wst.jsdt.core.dom.SuperFieldAccess;
import org.eclipse.wst.jsdt.core.dom.SuperMethodInvocation;
import org.eclipse.wst.jsdt.core.dom.SwitchCase;
import org.eclipse.wst.jsdt.core.dom.SwitchStatement;
import org.eclipse.wst.jsdt.core.dom.ThisExpression;
import org.eclipse.wst.jsdt.core.dom.ThrowStatement;
import org.eclipse.wst.jsdt.core.dom.Type;
import org.eclipse.wst.jsdt.core.dom.TypeDeclaration;
import org.eclipse.wst.jsdt.core.dom.VariableDeclarationFragment;
import org.eclipse.wst.jsdt.core.dom.rewrite.ASTRewrite;
import org.eclipse.wst.jsdt.core.dom.rewrite.ImportRewrite;
import org.eclipse.wst.jsdt.internal.corext.codemanipulation.StubUtility;
import org.eclipse.wst.jsdt.internal.corext.dom.ASTNodeFactory;
import org.eclipse.wst.jsdt.internal.corext.dom.ASTNodes;
import org.eclipse.wst.jsdt.internal.corext.dom.Bindings;
import org.eclipse.wst.jsdt.internal.corext.dom.ScopeAnalyzer;
import org.eclipse.wst.jsdt.internal.corext.util.JavaModelUtil;
import org.eclipse.wst.jsdt.internal.corext.util.Messages;
import org.eclipse.wst.jsdt.internal.corext.util.QualifiedTypeNameHistory;
import org.eclipse.wst.jsdt.internal.corext.util.TypeFilter;
import org.eclipse.wst.jsdt.internal.ui.JavaPluginImages;
import org.eclipse.wst.jsdt.internal.ui.JavaScriptPlugin;
import org.eclipse.wst.jsdt.internal.ui.text.correction.ChangeMethodSignatureProposal.ChangeDescription;
import org.eclipse.wst.jsdt.internal.ui.text.correction.ChangeMethodSignatureProposal.EditDescription;
import org.eclipse.wst.jsdt.internal.ui.text.correction.ChangeMethodSignatureProposal.InsertDescription;
import org.eclipse.wst.jsdt.internal.ui.text.correction.ChangeMethodSignatureProposal.RemoveDescription;
import org.eclipse.wst.jsdt.internal.ui.text.correction.ChangeMethodSignatureProposal.SwapDescription;
import org.eclipse.wst.jsdt.internal.ui.viewsupport.BindingLabelProvider;
import org.eclipse.wst.jsdt.internal.ui.viewsupport.JavaElementImageProvider;
import org.eclipse.wst.jsdt.ui.JavaScriptElementImageDescriptor;
import org.eclipse.wst.jsdt.ui.JavaScriptElementLabels;
import org.eclipse.wst.jsdt.ui.text.java.IInvocationContext;
import org.eclipse.wst.jsdt.ui.text.java.IProblemLocation;
public class UnresolvedElementsSubProcessor {
private static final String ADD_IMPORT_ID= "org.eclipse.wst.jsdt.ui.correction.addImport"; //$NON-NLS-1$
public static void getVariableProposals(IInvocationContext context, IProblemLocation problem, IVariableBinding resolvedField, Collection proposals) throws CoreException {
IJavaScriptUnit cu= context.getCompilationUnit();
JavaScriptUnit astRoot= context.getASTRoot();
ASTNode selectedNode= problem.getCoveredNode(astRoot);
if (selectedNode == null) {
return;
}
// type that defines the variable
ITypeBinding binding= null;
/* Commented out BC rev 1. quickfixing case 'var k = new <undefinedType>' */
ITypeBinding declaringTypeBinding= Bindings.getBindingOfParentTypeContext(selectedNode);
// if (declaringTypeBinding == null) {
// return;
// }
// possible type kind of the node
boolean suggestVariableProposals= true;
int typeKind= 0;
while (selectedNode instanceof ParenthesizedExpression) {
selectedNode= ((ParenthesizedExpression) selectedNode).getExpression();
}
Name node= null;
switch (selectedNode.getNodeType()) {
case ASTNode.SIMPLE_NAME:
node= (SimpleName) selectedNode;
ASTNode parent= node.getParent();
StructuralPropertyDescriptor locationInParent= node.getLocationInParent();
if (locationInParent == FunctionInvocation.EXPRESSION_PROPERTY) {
typeKind= SimilarElementsRequestor.CLASSES;
} else if (locationInParent == FieldAccess.NAME_PROPERTY) {
Expression expression= ((FieldAccess) parent).getExpression();
if (expression != null) {
binding= expression.resolveTypeBinding();
if (binding == null) {
node= null;
}
}
} else if (parent instanceof SimpleType || parent instanceof ClassInstanceCreation) {
// suggestVariableProposals= false;
// typeKind= SimilarElementsRequestor.REF_TYPES_AND_VAR;
} else if (parent instanceof QualifiedName) {
Name qualifier= ((QualifiedName) parent).getQualifier();
if (qualifier != node) {
binding= qualifier.resolveTypeBinding();
} else {
typeKind= SimilarElementsRequestor.REF_TYPES;
}
ASTNode outerParent= parent.getParent();
while (outerParent instanceof QualifiedName) {
outerParent= outerParent.getParent();
}
if (outerParent instanceof SimpleType) {
typeKind= SimilarElementsRequestor.REF_TYPES;
suggestVariableProposals= false;
}
} else if (locationInParent == SwitchCase.EXPRESSION_PROPERTY) {
ITypeBinding switchExp= ((SwitchStatement) node.getParent().getParent()).getExpression().resolveTypeBinding();
} else if (locationInParent == SuperFieldAccess.NAME_PROPERTY) {
binding= declaringTypeBinding.getSuperclass();
}
break;
case ASTNode.QUALIFIED_NAME:
QualifiedName qualifierName= (QualifiedName) selectedNode;
ITypeBinding qualifierBinding= qualifierName.getQualifier().resolveTypeBinding();
if (qualifierBinding != null) {
node= qualifierName.getName();
binding= qualifierBinding;
} else {
node= qualifierName.getQualifier();
typeKind= SimilarElementsRequestor.REF_TYPES;
suggestVariableProposals= node.isSimpleName();
}
if (selectedNode.getParent() instanceof SimpleType) {
typeKind= SimilarElementsRequestor.REF_TYPES;
suggestVariableProposals= false;
}
break;
case ASTNode.FIELD_ACCESS:
FieldAccess access= (FieldAccess) selectedNode;
Expression expression= access.getExpression();
if (expression != null) {
binding= expression.resolveTypeBinding();
if (binding != null) {
node= access.getName();
}
}
break;
case ASTNode.SUPER_FIELD_ACCESS:
binding= declaringTypeBinding.getSuperclass();
node= ((SuperFieldAccess) selectedNode).getName();
break;
default:
}
if (node == null) {
return;
}
// add type proposals
if (typeKind != 0) {
if (!JavaModelUtil.is50OrHigher(cu.getJavaScriptProject())) {
typeKind &= ~(SimilarElementsRequestor.ANNOTATIONS | SimilarElementsRequestor.ENUMS | SimilarElementsRequestor.VARIABLES);
}
int relevance= Character.isUpperCase(ASTNodes.getSimpleNameIdentifier(node).charAt(0)) ? 5 : -2;
addSimilarTypeProposals(typeKind, cu, node, relevance + 1, proposals);
typeKind &= ~SimilarElementsRequestor.ANNOTATIONS;
addNewTypeProposals(cu, node, typeKind, relevance, proposals);
}
if (!suggestVariableProposals) {
return;
}
SimpleName simpleName= node.isSimpleName() ? (SimpleName) node : ((QualifiedName) node).getName();
boolean isWriteAccess= ASTResolving.isWriteAccess(node);
// similar variables
addSimilarVariableProposals(cu, astRoot, binding, simpleName, isWriteAccess, proposals);
if (resolvedField == null || binding == null || resolvedField.getDeclaringClass() != binding.getTypeDeclaration() && Modifier.isPrivate(resolvedField.getModifiers())) {
// new fields
addNewFieldProposals(cu, astRoot, binding, declaringTypeBinding, simpleName, isWriteAccess, proposals);
// new parameters and local variables
if (binding == null) {
addNewVariableProposals(cu, node, simpleName, proposals);
}
}
}
private static void addNewVariableProposals(IJavaScriptUnit cu, Name node, SimpleName simpleName, Collection proposals) {
String name= simpleName.getIdentifier();
ASTNode bodyDeclaration= ASTResolving.findParentBodyDeclaration(node, true);
int type= bodyDeclaration.getNodeType();
if (type == ASTNode.FUNCTION_DECLARATION) {
int relevance= StubUtility.hasParameterName(cu.getJavaScriptProject(), name) ? 8 : 5;
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createparameter_description, simpleName.getIdentifier());
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_LOCAL);
proposals.add(new NewVariableCompletionProposal(label, cu, NewVariableCompletionProposal.PARAM, simpleName, null, relevance, image));
}
if (type == ASTNode.INITIALIZER || type == ASTNode.JAVASCRIPT_UNIT ||
(type == ASTNode.FUNCTION_DECLARATION && !ASTResolving.isInsideConstructorInvocation((FunctionDeclaration) bodyDeclaration, node))) {
int relevance= StubUtility.hasLocalVariableName(cu.getJavaScriptProject(), name) ? 10 : 7;
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createlocal_description, simpleName.getIdentifier());
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_LOCAL);
proposals.add(new NewVariableCompletionProposal(label, cu, NewVariableCompletionProposal.LOCAL, simpleName, null, relevance, image));
}
if (node.getParent().getNodeType() == ASTNode.ASSIGNMENT) {
Assignment assignment= (Assignment) node.getParent();
if (assignment.getLeftHandSide() == node && assignment.getParent().getNodeType() == ASTNode.EXPRESSION_STATEMENT) {
ASTNode statement= assignment.getParent();
ASTRewrite rewrite= ASTRewrite.create(statement.getAST());
if (ASTNodes.isControlStatementBody(assignment.getParent().getLocationInParent())) {
rewrite.replace(statement, rewrite.getAST().newBlock(), null);
} else {
rewrite.remove(statement, null);
}
String label= CorrectionMessages.UnresolvedElementsSubProcessor_removestatement_description;
Image image= JavaScriptPlugin.getDefault().getWorkbench().getSharedImages().getImage(ISharedImages.IMG_TOOL_DELETE);
ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, cu, rewrite, 4, image);
proposals.add(proposal);
}
}
}
private static void addNewFieldProposals(IJavaScriptUnit cu, JavaScriptUnit astRoot, ITypeBinding binding, ITypeBinding declaringTypeBinding, SimpleName simpleName, boolean isWriteAccess, Collection proposals) throws JavaScriptModelException {
// new variables
IJavaScriptUnit targetCU;
ITypeBinding senderDeclBinding;
if (binding != null) {
senderDeclBinding= binding.getTypeDeclaration();
targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, senderDeclBinding);
} else { // binding is null for accesses without qualifier
senderDeclBinding= declaringTypeBinding;
targetCU= cu;
}
if (senderDeclBinding==null || !senderDeclBinding.isFromSource() || targetCU == null) {
return;
}
boolean mustBeConst= ASTResolving.isInsideModifiers(simpleName);
addNewFieldForType(targetCU, binding, senderDeclBinding, simpleName, isWriteAccess, mustBeConst, proposals);
if (binding == null && senderDeclBinding.isNested()) {
ASTNode anonymDecl= astRoot.findDeclaringNode(senderDeclBinding);
if (anonymDecl != null) {
ITypeBinding bind= Bindings.getBindingOfParentType(anonymDecl.getParent());
if (!bind.isAnonymous()) {
addNewFieldForType(targetCU, bind, bind, simpleName, isWriteAccess, mustBeConst, proposals);
}
}
}
}
private static void addNewFieldForType(IJavaScriptUnit targetCU, ITypeBinding binding, ITypeBinding senderDeclBinding, SimpleName simpleName, boolean isWriteAccess, boolean mustBeConst, Collection proposals) {
String name= simpleName.getIdentifier();
String label;
Image image;
if (!mustBeConst) {
if (binding == null) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createfield_description, name);
image= JavaPluginImages.get(JavaPluginImages.IMG_FIELD_PRIVATE);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createfield_other_description, new Object[] { name, ASTResolving.getTypeSignature(senderDeclBinding) } );
image= JavaPluginImages.get(JavaPluginImages.IMG_FIELD_PUBLIC);
}
int fieldRelevance= StubUtility.hasFieldName(targetCU.getJavaScriptProject(), name) ? 9 : 6;
proposals.add(new NewVariableCompletionProposal(label, targetCU, NewVariableCompletionProposal.FIELD, simpleName, senderDeclBinding, fieldRelevance, image));
}
if (!isWriteAccess && !senderDeclBinding.isAnonymous()) {
if (binding == null) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createconst_description, name);
image= JavaPluginImages.get(JavaPluginImages.IMG_FIELD_PRIVATE);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createconst_other_description, new Object[] { name, ASTResolving.getTypeSignature(senderDeclBinding) } );
image= JavaPluginImages.get(JavaPluginImages.IMG_FIELD_PUBLIC);
}
int constRelevance= StubUtility.hasConstantName(name) ? 9 : 4;
proposals.add(new NewVariableCompletionProposal(label, targetCU, NewVariableCompletionProposal.CONST_FIELD, simpleName, senderDeclBinding, constRelevance, image));
}
}
private static void addSimilarVariableProposals(IJavaScriptUnit cu, JavaScriptUnit astRoot, ITypeBinding binding, SimpleName node, boolean isWriteAccess, Collection proposals) {
int kind= ScopeAnalyzer.VARIABLES | ScopeAnalyzer.CHECK_VISIBILITY;
if (!isWriteAccess) {
kind |= ScopeAnalyzer.METHODS; // also try to find similar methods
}
IBinding[] varsAndMethodsInScope= (new ScopeAnalyzer(astRoot)).getDeclarationsInScope(node, kind);
if (varsAndMethodsInScope.length > 0) {
// avoid corrections like int i= i;
String otherNameInAssign= null;
// help with x.getString() -> y.getString()
String methodSenderName= null;
String fieldSenderName= null;
ASTNode parent= node.getParent();
switch (parent.getNodeType()) {
case ASTNode.VARIABLE_DECLARATION_FRAGMENT:
// node must be initializer
otherNameInAssign= ((VariableDeclarationFragment) parent).getName().getIdentifier();
break;
case ASTNode.ASSIGNMENT:
Assignment assignment= (Assignment) parent;
if (isWriteAccess && assignment.getRightHandSide() instanceof SimpleName) {
otherNameInAssign= ((SimpleName) assignment.getRightHandSide()).getIdentifier();
} else if (!isWriteAccess && assignment.getLeftHandSide() instanceof SimpleName) {
otherNameInAssign= ((SimpleName) assignment.getLeftHandSide()).getIdentifier();
}
break;
case ASTNode.FUNCTION_INVOCATION:
FunctionInvocation inv= (FunctionInvocation) parent;
if (inv.getExpression() == node) {
methodSenderName= inv.getName().getIdentifier();
}
break;
case ASTNode.QUALIFIED_NAME:
QualifiedName qualName= (QualifiedName) parent;
if (qualName.getQualifier() == node) {
fieldSenderName= qualName.getName().getIdentifier();
}
break;
}
ITypeBinding guessedType= ASTResolving.guessBindingForReference(node);
ITypeBinding objectBinding= astRoot.getAST().resolveWellKnownType("java.lang.Object"); //$NON-NLS-1$
String identifier= node.getIdentifier();
boolean isInStaticContext= ASTResolving.isInStaticContext(node);
loop: for (int i= 0; i < varsAndMethodsInScope.length; i++) {
IBinding varOrMeth= varsAndMethodsInScope[i];
if (varOrMeth instanceof IVariableBinding) {
IVariableBinding curr= (IVariableBinding) varOrMeth;
String currName= curr.getName();
if (currName.equals(otherNameInAssign)) {
continue loop;
}
boolean isFinal= Modifier.isFinal(curr.getModifiers());
if (isFinal && curr.isField() && isWriteAccess) {
continue loop;
}
if (isInStaticContext && !Modifier.isStatic(curr.getModifiers()) && curr.isField()) {
continue loop;
}
int relevance= 0;
if (NameMatcher.isSimilarName(currName, identifier)) {
relevance += 3; // variable with a similar name than the unresolved variable
}
if (currName.equalsIgnoreCase(identifier)) {
relevance+= 5;
}
ITypeBinding varType= curr.getType();
if (varType != null) {
if (guessedType != null && guessedType != objectBinding) { // too many result with object
// variable type is compatible with the guessed type
if (!isWriteAccess && canAssign(varType, guessedType)
|| isWriteAccess && canAssign(guessedType, varType)) {
relevance += 2; // unresolved variable can be assign to this variable
}
}else if (guessedType==null && relevance==0) {
/* type any? */
relevance+=1;
}
if (methodSenderName != null && hasMethodWithName(varType, methodSenderName)) {
relevance += 2;
}
if (fieldSenderName != null && hasFieldWithName(varType, fieldSenderName)) {
relevance += 2;
}
}
if (relevance > 0) {
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changevariable_description, currName);
if(node.getParent() instanceof ClassInstanceCreation) {
proposals.add(new RenameNodeCompletionProposal(label, cu, node.getParent().getStartPosition(), node.getParent().getLength(), currName, relevance));
}else {
proposals.add(new RenameNodeCompletionProposal(label, cu, node.getStartPosition(), node.getLength(), currName, relevance));
}
}
} else if (varOrMeth instanceof IFunctionBinding) {
IFunctionBinding curr= (IFunctionBinding) varOrMeth;
if (!curr.isConstructor() && guessedType != null && canAssign(curr.getReturnType(), guessedType)) {
if (NameMatcher.isSimilarName(curr.getName(), identifier)) {
AST ast= astRoot.getAST();
ASTRewrite rewrite= ASTRewrite.create(ast);
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changetomethod_description, ASTResolving.getMethodSignature(curr, false));
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
LinkedCorrectionProposal proposal= new LinkedCorrectionProposal(label, cu, rewrite, 8, image);
proposals.add(proposal);
FunctionInvocation newInv= ast.newFunctionInvocation();
newInv.setName(ast.newSimpleName(curr.getName()));
ITypeBinding[] parameterTypes= curr.getParameterTypes();
for (int k= 0; k < parameterTypes.length; k++) {
ASTNode arg= ASTNodeFactory.newDefaultExpression(ast, parameterTypes[k]);
newInv.arguments().add(arg);
proposal.addLinkedPosition(rewrite.track(arg), false, null);
}
rewrite.replace(node, newInv, null);
}
}
}
}
}
if (binding != null && binding.isArray()) {
String idLength= "length"; //$NON-NLS-1$
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changevariable_description, idLength);
proposals.add(new RenameNodeCompletionProposal(label, cu, node.getStartPosition(), node.getLength(), idLength, 8));
}
}
private static boolean canAssign(ITypeBinding returnType, ITypeBinding guessedType) {
return returnType.isAssignmentCompatible(guessedType);
}
private static boolean hasMethodWithName(ITypeBinding typeBinding, String name) {
IVariableBinding[] fields= typeBinding.getDeclaredFields();
for (int i= 0; i < fields.length; i++) {
if (fields[i].getName().equals(name)) {
return true;
}
}
ITypeBinding superclass= typeBinding.getSuperclass();
if (superclass != null) {
return hasMethodWithName(superclass, name);
}
return false;
}
private static boolean hasFieldWithName(ITypeBinding typeBinding, String name) {
IFunctionBinding[] methods= typeBinding.getDeclaredMethods();
for (int i= 0; i < methods.length; i++) {
if (methods[i].getName().equals(name)) {
return true;
}
}
ITypeBinding superclass= typeBinding.getSuperclass();
if (superclass != null) {
return hasMethodWithName(superclass, name);
}
return false;
}
private static int evauateTypeKind(ASTNode node, IJavaScriptProject project) {
int kind= ASTResolving.getPossibleTypeKinds(node, JavaModelUtil.is50OrHigher(project));
return kind;
}
public static void getTypeProposals(IInvocationContext context, IProblemLocation problem, Collection proposals) throws CoreException {
IJavaScriptUnit cu= context.getCompilationUnit();
ASTNode selectedNode= problem.getCoveringNode(context.getASTRoot());
if (selectedNode == null) {
return;
}
int kind= evauateTypeKind(selectedNode, cu.getJavaScriptProject());
while (selectedNode.getLocationInParent() == QualifiedName.NAME_PROPERTY) {
selectedNode= selectedNode.getParent();
}
Name node= null;
if (selectedNode instanceof SimpleType) {
node= ((SimpleType) selectedNode).getName();
} else if (selectedNode instanceof ArrayType) {
Type elementType= ((ArrayType) selectedNode).getElementType();
if (elementType.isSimpleType()) {
node= ((SimpleType) elementType).getName();
} else {
return;
}
} else if (selectedNode instanceof Name) {
node= (Name) selectedNode;
} else {
return;
}
// change to similar type proposals
addSimilarTypeProposals(kind, cu, node, 3, proposals);
while (node.getParent() instanceof QualifiedName) {
node= (Name) node.getParent();
}
if (selectedNode != node) {
kind= evauateTypeKind(node, cu.getJavaScriptProject());
}
if ((kind & (SimilarElementsRequestor.CLASSES | SimilarElementsRequestor.INTERFACES)) != 0) {
kind &= ~SimilarElementsRequestor.ANNOTATIONS; // only propose annotations when there are no other suggestions
}
addNewTypeProposals(cu, node, kind, 0, proposals);
}
private static void addSimilarTypeProposals(int kind, IJavaScriptUnit cu, Name node, int relevance, Collection proposals) throws CoreException {
SimilarElement[] elements= SimilarElementsRequestor.findSimilarElement(cu, node, kind);
// try to resolve type in context -> highest severity
String resolvedTypeName= null;
ITypeBinding binding= ASTResolving.guessBindingForTypeReference(node);
if (binding != null) {
ITypeBinding simpleBinding= binding;
if (simpleBinding.isArray()) {
simpleBinding= simpleBinding.getElementType();
}
simpleBinding= simpleBinding.getTypeDeclaration();
resolvedTypeName= simpleBinding.getQualifiedName();
CUCorrectionProposal proposal= createTypeRefChangeProposal(cu, resolvedTypeName, node, relevance + 2, elements.length);
proposals.add(proposal);
if (proposal instanceof AddImportCorrectionProposal)
proposal.setRelevance(relevance + elements.length + 2);
} else {
ASTNode normalizedNode= ASTNodes.getNormalizedNode(node);
if (!(normalizedNode.getParent() instanceof Type) && node.getParent() != normalizedNode) {
ITypeBinding normBinding= ASTResolving.guessBindingForTypeReference(normalizedNode);
if (normBinding != null) {
proposals.add(createTypeRefChangeFullProposal(cu, normBinding, normalizedNode, relevance + 2));
}
}
}
// add all similar elements
for (int i= 0; i < elements.length; i++) {
SimilarElement elem= elements[i];
if ((elem.getKind() & SimilarElementsRequestor.ALL_TYPES) != 0) {
String fullName= elem.getName();
if (!fullName.equals(resolvedTypeName)) {
proposals.add(createTypeRefChangeProposal(cu, fullName, node, relevance, elements.length));
}
}
}
}
private static CUCorrectionProposal createTypeRefChangeProposal(IJavaScriptUnit cu, String fullName, Name node, int relevance, int maxProposals) throws CoreException {
ImportRewrite importRewrite= null;
String simpleName= fullName;
String packName= Signature.getQualifier(fullName);
if (packName.length() > 0) { // no imports for primitive types, type variables
importRewrite= StubUtility.createImportRewrite((JavaScriptUnit) node.getRoot(), true);
simpleName= importRewrite.addImport(fullName);
}
if (!isLikelyTypeName(simpleName)) {
relevance -= 2;
}
ASTRewriteCorrectionProposal proposal;
if (importRewrite != null && node.isSimpleName() && simpleName.equals(((SimpleName) node).getIdentifier())) { // import only
// import only
String[] arg= { simpleName, packName };
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_importtype_description, arg);
Image image= JavaPluginImages.get(JavaPluginImages.IMG_OBJS_IMPDECL);
int boost= QualifiedTypeNameHistory.getBoost(fullName, 0, maxProposals);
proposal= new AddImportCorrectionProposal(label, cu, relevance + 100 + boost, image, packName, simpleName, (SimpleName)node);
proposal.setCommandId(ADD_IMPORT_ID);
} else {
String label;
if (packName.length() == 0) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changetype_nopack_description, simpleName);
} else {
String[] arg= { simpleName, packName };
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changetype_description, arg);
}
ASTRewrite rewrite= ASTRewrite.create(node.getAST());
rewrite.replace(node, rewrite.createStringPlaceholder(simpleName, ASTNode.SIMPLE_TYPE), null);
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
proposal= new ASTRewriteCorrectionProposal(label, cu, rewrite, relevance, image);
}
if (importRewrite != null) {
proposal.setImportRewrite(importRewrite);
}
return proposal;
}
private static CUCorrectionProposal createTypeRefChangeFullProposal(IJavaScriptUnit cu, ITypeBinding binding, ASTNode node, int relevance) throws CoreException {
ASTRewrite rewrite= ASTRewrite.create(node.getAST());
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_change_full_type_description, BindingLabelProvider.getBindingLabel(binding, JavaScriptElementLabels.ALL_DEFAULT));
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, cu, rewrite, relevance + 3, image);
ImportRewrite imports= proposal.createImportRewrite((JavaScriptUnit) node.getRoot());
Type type= imports.addImport(binding, node.getAST());
rewrite.replace(node, type, null);
return proposal;
}
private static boolean isLikelyTypeName(String name) {
return name.length() > 0 && Character.isUpperCase(name.charAt(0));
}
private static boolean isLikelyPackageName(String name) {
if (name.length() != 0) {
int i= 0;
do {
if (Character.isUpperCase(name.charAt(i))) {
return false;
}
i= name.indexOf('.', i) + 1;
} while (i != 0 && i < name.length());
}
return true;
}
private static boolean isLikelyTypeParameterName(String name) {
return name.length() == 1 && Character.isUpperCase(name.charAt(0));
}
public static void addNewTypeProposals(IJavaScriptUnit cu, Name refNode, int kind, int relevance, Collection proposals) throws JavaScriptModelException {
Name node= refNode;
do {
String typeName= ASTNodes.getSimpleNameIdentifier(node);
Name qualifier= null;
// only propose to create types for qualifiers when the name starts with upper case
boolean isPossibleName= isLikelyTypeName(typeName) || (node == refNode);
if (isPossibleName) {
IPackageFragment enclosingPackage= null;
IType enclosingType= null;
if (node.isSimpleName()) {
enclosingPackage= (IPackageFragment) cu.getParent();
// don't suggest member type, user can select it in wizard
} else {
Name qualifierName= ((QualifiedName) node).getQualifier();
IBinding binding= qualifierName.resolveBinding();
if (binding != null && binding.isRecovered()) {
binding= null;
}
if (binding instanceof ITypeBinding) {
enclosingType=(IType) binding.getJavaElement();
} else if (binding instanceof IPackageBinding) {
qualifier= qualifierName;
enclosingPackage= (IPackageFragment) binding.getJavaElement();
} else {
IJavaScriptElement[] res= cu.codeSelect(qualifierName.getStartPosition(), qualifierName.getLength());
if (res!= null && res.length > 0 && res[0] instanceof IType) {
enclosingType= (IType) res[0];
} else {
qualifier= qualifierName;
enclosingPackage= JavaModelUtil.getPackageFragmentRoot(cu).getPackageFragment(ASTResolving.getFullName(qualifierName));
}
}
}
int rel= relevance;
if (enclosingPackage != null && isLikelyPackageName(enclosingPackage.getElementName())) {
rel += 3;
}
if ((enclosingPackage != null && !enclosingPackage.getJavaScriptUnit(typeName + JavaModelUtil.DEFAULT_CU_SUFFIX).exists()) // new top level type
|| (enclosingType != null && !enclosingType.isReadOnly() && !enclosingType.getType(typeName).exists())) { // new member type
IJavaScriptElement enclosing= enclosingPackage != null ? (IJavaScriptElement) enclosingPackage : enclosingType;
if ((kind & SimilarElementsRequestor.CLASSES) != 0) {
proposals.add(new NewCUCompletionUsingWizardProposal(cu, node, NewCUCompletionUsingWizardProposal.K_CLASS, enclosing, rel+3));
}
// if ((kind & SimilarElementsRequestor.INTERFACES) != 0) {
// proposals.add(new NewCUCompletionUsingWizardProposal(cu, node, NewCUCompletionUsingWizardProposal.K_INTERFACE, enclosing, rel+2));
// }
// if ((kind & SimilarElementsRequestor.ENUMS) != 0) {
// proposals.add(new NewCUCompletionUsingWizardProposal(cu, node, NewCUCompletionUsingWizardProposal.K_ENUM, enclosing, rel));
// }
// if ((kind & SimilarElementsRequestor.ANNOTATIONS) != 0) {
// proposals.add(new NewCUCompletionUsingWizardProposal(cu, node, NewCUCompletionUsingWizardProposal.K_ANNOTATION, enclosing, rel + 1));
// }
}
}
node= qualifier;
} while (node != null);
// type parameter proposals
if (refNode.isSimpleName() && ((kind & SimilarElementsRequestor.VARIABLES) != 0)) {
JavaScriptUnit root= (JavaScriptUnit) refNode.getRoot();
String name= ((SimpleName) refNode).getIdentifier();
BodyDeclaration declaration= ASTResolving.findParentBodyDeclaration(refNode);
int baseRel= relevance;
if (isLikelyTypeParameterName(name)) {
baseRel += 4;
}
while (declaration != null) {
IBinding binding= null;
int rel= baseRel;
if (declaration instanceof FunctionDeclaration) {
binding= ((FunctionDeclaration) declaration).resolveBinding();
} else if (declaration instanceof TypeDeclaration) {
binding= ((TypeDeclaration) declaration).resolveBinding();
rel++;
}
if (!Modifier.isStatic(declaration.getModifiers())) {
declaration= ASTResolving.findParentBodyDeclaration(declaration.getParent());
} else {
declaration= null;
}
}
}
}
public static void getMethodProposals(IInvocationContext context, IProblemLocation problem, boolean isOnlyParameterMismatch, Collection proposals) throws CoreException {
IJavaScriptUnit cu= context.getCompilationUnit();
JavaScriptUnit astRoot= context.getASTRoot();
ASTNode selectedNode= problem.getCoveringNode(astRoot);
if (!(selectedNode instanceof SimpleName)) {
return;
}
SimpleName nameNode= (SimpleName) selectedNode;
List arguments;
Expression sender;
boolean isSuperInvocation;
ASTNode invocationNode= nameNode.getParent();
if (invocationNode instanceof FunctionInvocation) {
FunctionInvocation methodImpl= (FunctionInvocation) invocationNode;
arguments= methodImpl.arguments();
sender= methodImpl.getExpression();
isSuperInvocation= false;
} else if (invocationNode instanceof SuperMethodInvocation) {
SuperMethodInvocation methodImpl= (SuperMethodInvocation) invocationNode;
arguments= methodImpl.arguments();
sender= methodImpl.getQualifier();
isSuperInvocation= true;
} else {
return;
}
String methodName= nameNode.getIdentifier();
int nArguments= arguments.size();
// corrections
IBinding[] bindings= (new ScopeAnalyzer(astRoot)).getDeclarationsInScope(nameNode, ScopeAnalyzer.METHODS);
HashSet suggestedRenames= new HashSet();
for (int i= 0; i < bindings.length; i++) {
IFunctionBinding binding= (IFunctionBinding) bindings[i];
String curr= binding.getName();
if (!curr.equals(methodName) && binding.getParameterTypes().length == nArguments && NameMatcher.isSimilarName(methodName, curr) && suggestedRenames.add(curr)) {
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changemethod_description, curr);
proposals.add(new RenameNodeCompletionProposal(label, context.getCompilationUnit(), problem.getOffset(), problem.getLength(), curr, 6));
}
}
suggestedRenames= null;
if (isOnlyParameterMismatch) {
ArrayList parameterMismatchs= new ArrayList();
for (int i= 0; i < bindings.length; i++) {
IFunctionBinding binding= (IFunctionBinding) bindings[i];
if (binding.getName().equals(methodName)) {
parameterMismatchs.add(binding);
}
}
addParameterMissmatchProposals(context, problem, parameterMismatchs, invocationNode, arguments, proposals);
}
// new method
addNewMethodProposals(cu, astRoot, sender, arguments, isSuperInvocation, invocationNode, methodName, proposals);
if (!isSuperInvocation && sender == null && invocationNode.getParent() instanceof ThrowStatement) {
String str= "new "; //$NON-NLS-1$ // do it the manual way, copting all the arguments is nasty
String label= CorrectionMessages.UnresolvedElementsSubProcessor_addnewkeyword_description;
int relevance= Character.isUpperCase(methodName.charAt(0)) ? 7 : 4;
ReplaceCorrectionProposal proposal= new ReplaceCorrectionProposal(label, cu, invocationNode.getStartPosition(), 0, str, relevance);
proposals.add(proposal);
}
}
private static void addNewMethodProposals(IJavaScriptUnit cu, JavaScriptUnit astRoot, Expression sender, List arguments, boolean isSuperInvocation, ASTNode invocationNode, String methodName, Collection proposals) throws JavaScriptModelException {
ITypeBinding nodeParentType= Bindings.getBindingOfParentType(invocationNode);
ITypeBinding binding= null;
if (sender != null) {
binding= sender.resolveTypeBinding();
} else {
binding= nodeParentType;
if (isSuperInvocation && binding != null) {
binding= binding.getSuperclass();
}
}
if (binding != null && binding.isFromSource()) {
ITypeBinding senderDeclBinding= binding.getTypeDeclaration();
IJavaScriptUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, senderDeclBinding);
if (targetCU != null) {
String label;
Image image;
ITypeBinding[] parameterTypes= getParameterTypes(arguments);
if (parameterTypes != null) {
String sig= ASTResolving.getMethodSignature(methodName, parameterTypes, false);
if (ASTResolving.isUseableTypeInContext(parameterTypes, senderDeclBinding, false)) {
if (nodeParentType == senderDeclBinding) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_description, sig);
image= JavaPluginImages.get(JavaPluginImages.IMG_MISC_PRIVATE);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_other_description, new Object[] { sig, senderDeclBinding.getName() } );
image= JavaPluginImages.get(JavaPluginImages.IMG_MISC_PUBLIC);
}
proposals.add(new NewMethodCompletionProposal(label, targetCU, invocationNode, arguments, senderDeclBinding, 5, image));
}
if (senderDeclBinding.isNested() && cu.equals(targetCU) && sender == null && Bindings.findMethodInHierarchy(senderDeclBinding, methodName, (ITypeBinding[]) null) == null) { // no covering method
ASTNode anonymDecl= astRoot.findDeclaringNode(senderDeclBinding);
if (anonymDecl != null) {
senderDeclBinding= Bindings.getBindingOfParentType(anonymDecl.getParent());
if (!senderDeclBinding.isAnonymous() && ASTResolving.isUseableTypeInContext(parameterTypes, senderDeclBinding, false)) {
String[] args= new String[] { sig, ASTResolving.getTypeSignature(senderDeclBinding) };
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_other_description, args);
image= JavaPluginImages.get(JavaPluginImages.IMG_MISC_PROTECTED);
proposals.add(new NewMethodCompletionProposal(label, targetCU, invocationNode, arguments, senderDeclBinding, 5, image));
}
}
}
}
}
}
}
private static void addParameterMissmatchProposals(IInvocationContext context, IProblemLocation problem, List similarElements, ASTNode invocationNode, List arguments, Collection proposals) throws CoreException {
int nSimilarElements= similarElements.size();
ITypeBinding[] argTypes= getArgumentTypes(arguments);
if (argTypes == null || nSimilarElements == 0) {
return;
}
for (int i= 0; i < nSimilarElements; i++) {
IFunctionBinding elem = (IFunctionBinding) similarElements.get(i);
int diff= elem.getParameterTypes().length - argTypes.length;
if (diff == 0) {
int nProposals= proposals.size();
doEqualNumberOfParameters(context, invocationNode, problem, arguments, argTypes, elem, proposals);
if (nProposals != proposals.size()) {
return; // only suggest for one method (avoid duplicated proposals)
}
} else if (diff > 0) {
doMoreParameters(context, problem, invocationNode, arguments, argTypes, elem, proposals);
} else {
doMoreArguments(context, problem, invocationNode, arguments, argTypes, elem, proposals);
}
}
}
private static void doMoreParameters(IInvocationContext context, IProblemLocation problem, ASTNode invocationNode, List arguments, ITypeBinding[] argTypes, IFunctionBinding methodBinding, Collection proposals) throws CoreException {
ITypeBinding[] paramTypes= methodBinding.getParameterTypes();
int k= 0, nSkipped= 0;
int diff= paramTypes.length - argTypes.length;
int[] indexSkipped= new int[diff];
for (int i= 0; i < paramTypes.length; i++) {
if (k < argTypes.length && canAssign(argTypes[k], paramTypes[i])) {
k++; // match
} else {
if (nSkipped >= diff) {
return; // too different
}
indexSkipped[nSkipped++]= i;
}
}
ITypeBinding declaringType= methodBinding.getDeclaringClass();
IJavaScriptUnit cu= context.getCompilationUnit();
JavaScriptUnit astRoot= context.getASTRoot();
// add arguments
{
String[] arg= new String[] { ASTResolving.getMethodSignature(methodBinding, false) };
String label;
if (diff == 1) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_addargument_description, arg);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_addarguments_description, arg);
}
AddArgumentCorrectionProposal proposal= new AddArgumentCorrectionProposal(label, context.getCompilationUnit(), invocationNode, indexSkipped, paramTypes, 8);
proposal.setImage(JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_ADD));
proposals.add(proposal);
}
// remove parameters
if (!declaringType.isFromSource()) {
return;
}
IJavaScriptUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, declaringType);
if (targetCU != null) {
IFunctionBinding methodDecl= methodBinding.getMethodDeclaration();
ITypeBinding[] declParameterTypes= methodDecl.getParameterTypes();
ChangeDescription[] changeDesc= new ChangeDescription[declParameterTypes.length];
ITypeBinding[] changedTypes= new ITypeBinding[diff];
for (int i= diff - 1; i >= 0; i--) {
int idx= indexSkipped[i];
changeDesc[idx]= new RemoveDescription();
changedTypes[i]= declParameterTypes[idx];
}
String[] arg= new String[] { ASTResolving.getMethodSignature(methodDecl, !cu.equals(targetCU)), getTypeNames(changedTypes) };
String label;
if (methodDecl.isConstructor()) {
if (diff == 1) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_removeparam_constr_description, arg);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_removeparams_constr_description, arg);
}
} else {
if (diff == 1) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_removeparam_description, arg);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_removeparams_description, arg);
}
}
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_REMOVE);
ChangeMethodSignatureProposal proposal= new ChangeMethodSignatureProposal(label, targetCU, invocationNode, methodDecl, changeDesc, null, 5, image);
proposals.add(proposal);
}
}
private static String getTypeNames(ITypeBinding[] types) {
StringBuffer buf= new StringBuffer();
for (int i= 0; i < types.length; i++) {
if (i > 0) {
buf.append(", "); //$NON-NLS-1$
}
buf.append(ASTResolving.getTypeSignature(types[i]));
}
return buf.toString();
}
private static String getArgumentName(IJavaScriptUnit cu, List arguments, int index) {
String def= String.valueOf(index + 1);
ASTNode expr= (ASTNode) arguments.get(index);
if (expr.getLength() > 18) {
return def;
}
ASTMatcher matcher= new ASTMatcher();
for (int i= 0; i < arguments.size(); i++) {
if (i != index && matcher.safeSubtreeMatch(expr, arguments.get(i))) {
return def;
}
}
return '\'' + ASTNodes.asString(expr) + '\'';
}
private static void doMoreArguments(IInvocationContext context, IProblemLocation problem, ASTNode invocationNode, List arguments, ITypeBinding[] argTypes, IFunctionBinding methodRef, Collection proposals) throws CoreException {
ITypeBinding[] paramTypes= methodRef.getParameterTypes();
int k= 0, nSkipped= 0;
int diff= argTypes.length - paramTypes.length;
int[] indexSkipped= new int[diff];
for (int i= 0; i < argTypes.length; i++) {
if (k < paramTypes.length && canAssign(argTypes[i], paramTypes[k])) {
k++; // match
} else {
if (nSkipped >= diff) {
return; // too different
}
indexSkipped[nSkipped++]= i;
}
}
IJavaScriptUnit cu= context.getCompilationUnit();
JavaScriptUnit astRoot= context.getASTRoot();
// remove arguments
{
ASTRewrite rewrite= ASTRewrite.create(astRoot.getAST());
for (int i= diff - 1; i >= 0; i--) {
rewrite.remove((Expression) arguments.get(indexSkipped[i]), null);
}
String[] arg= new String[] { ASTResolving.getMethodSignature(methodRef, false) };
String label;
if (diff == 1) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_removeargument_description, arg);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_removearguments_description, arg);
}
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_REMOVE);
ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, cu, rewrite, 8, image);
proposals.add(proposal);
}
IFunctionBinding methodDecl= methodRef.getMethodDeclaration();
ITypeBinding declaringType= methodDecl.getDeclaringClass();
// add parameters
if (!declaringType.isFromSource()) {
return;
}
IJavaScriptUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, declaringType);
if (targetCU != null) {
boolean isDifferentCU= !cu.equals(targetCU);
if (isImplicitConstructor(methodDecl, targetCU)) {
return;
}
ChangeDescription[] changeDesc= new ChangeDescription[argTypes.length];
ITypeBinding[] changeTypes= new ITypeBinding[diff];
for (int i= diff - 1; i >= 0; i--) {
int idx= indexSkipped[i];
Expression arg= (Expression) arguments.get(idx);
String name= arg instanceof SimpleName ? ((SimpleName) arg).getIdentifier() : null;
ITypeBinding newType= Bindings.normalizeTypeBinding(argTypes[idx]);
if (newType == null) {
newType= astRoot.getAST().resolveWellKnownType("java.lang.Object"); //$NON-NLS-1$
}
if (!ASTResolving.isUseableTypeInContext(newType, methodDecl, false)) {
return;
}
changeDesc[idx]= new InsertDescription(newType, name);
changeTypes[i]= newType;
}
String[] arg= new String[] { ASTResolving.getMethodSignature(methodDecl, isDifferentCU), getTypeNames(changeTypes) };
String label;
if (methodDecl.isConstructor()) {
if (diff == 1) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_addparam_constr_description, arg);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_addparams_constr_description, arg);
}
} else {
if (diff == 1) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_addparam_description, arg);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_addparams_description, arg);
}
}
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_ADD);
ChangeMethodSignatureProposal proposal= new ChangeMethodSignatureProposal(label, targetCU, invocationNode, methodDecl, changeDesc, null, 5, image);
proposals.add(proposal);
}
}
private static boolean isImplicitConstructor(IFunctionBinding meth, IJavaScriptUnit targetCU) {
return meth.isDefaultConstructor();
}
private static ITypeBinding[] getParameterTypes(List args) {
ITypeBinding[] params= new ITypeBinding[args.size()];
for (int i= 0; i < args.size(); i++) {
Expression expr= (Expression) args.get(i);
ITypeBinding curr= Bindings.normalizeTypeBinding(expr.resolveTypeBinding());
if (curr == null) {
curr= expr.getAST().resolveWellKnownType("java.lang.Object"); //$NON-NLS-1$
}
params[i]= curr;
}
return params;
}
private static void doEqualNumberOfParameters(IInvocationContext context, ASTNode invocationNode, IProblemLocation problem, List arguments, ITypeBinding[] argTypes, IFunctionBinding methodBinding, Collection proposals) throws CoreException {
ITypeBinding[] paramTypes= methodBinding.getParameterTypes();
int[] indexOfDiff= new int[paramTypes.length];
int nDiffs= 0;
for (int n= 0; n < argTypes.length; n++) {
if (!canAssign(argTypes[n], paramTypes[n])) {
indexOfDiff[nDiffs++]= n;
}
}
ITypeBinding declaringTypeDecl= methodBinding.getDeclaringClass().getTypeDeclaration();
IJavaScriptUnit cu= context.getCompilationUnit();
JavaScriptUnit astRoot= context.getASTRoot();
ASTNode nameNode= problem.getCoveringNode(astRoot);
if (nameNode == null) {
return;
}
if (nDiffs == 0) {
if (nameNode.getParent() instanceof FunctionInvocation) {
FunctionInvocation inv= (FunctionInvocation) nameNode.getParent();
if (inv.getExpression() == null) {
addQualifierToOuterProposal(context, inv, methodBinding, proposals);
}
}
return;
}
if (nDiffs == 1) { // one argument mismatching: try to fix
int idx= indexOfDiff[0];
Expression nodeToCast= (Expression) arguments.get(idx);
ITypeBinding castType= paramTypes[idx];
castType= Bindings.normalizeTypeBinding(castType);
if (castType != null) {
TypeMismatchSubProcessor.addChangeSenderTypeProposals(context, nodeToCast, castType, false, 5, proposals);
}
}
if (nDiffs == 2) { // try to swap
int idx1= indexOfDiff[0];
int idx2= indexOfDiff[1];
boolean canSwap= canAssign(argTypes[idx1], paramTypes[idx2]) && canAssign(argTypes[idx2], paramTypes[idx1]);
if (canSwap) {
Expression arg1= (Expression) arguments.get(idx1);
Expression arg2= (Expression) arguments.get(idx2);
ASTRewrite rewrite= ASTRewrite.create(astRoot.getAST());
rewrite.replace(arg1, rewrite.createCopyTarget(arg2), null);
rewrite.replace(arg2, rewrite.createCopyTarget(arg1), null);
{
String[] arg= new String[] { getArgumentName(cu, arguments, idx1), getArgumentName(cu, arguments, idx2) };
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_swaparguments_description, arg);
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, 8, image);
proposals.add(proposal);
}
if (declaringTypeDecl.isFromSource()) {
IJavaScriptUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, declaringTypeDecl);
if (targetCU != null) {
ChangeDescription[] changeDesc= new ChangeDescription[paramTypes.length];
for (int i= 0; i < nDiffs; i++) {
changeDesc[idx1]= new SwapDescription(idx2);
}
IFunctionBinding methodDecl= methodBinding.getMethodDeclaration();
ITypeBinding[] declParamTypes= methodDecl.getParameterTypes();
ITypeBinding[] swappedTypes= new ITypeBinding[] { declParamTypes[idx1], declParamTypes[idx2] };
String[] args= new String[] { ASTResolving.getMethodSignature(methodDecl, !targetCU.equals(cu)), getTypeNames(swappedTypes) };
String label;
if (methodDecl.isConstructor()) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_swapparams_constr_description, args);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_swapparams_description, args);
}
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
ChangeMethodSignatureProposal proposal= new ChangeMethodSignatureProposal(label, targetCU, invocationNode, methodDecl, changeDesc, null, 5, image);
proposals.add(proposal);
}
}
return;
}
}
if (declaringTypeDecl.isFromSource()) {
IJavaScriptUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, declaringTypeDecl);
if (targetCU != null) {
ChangeDescription[] changeDesc= createSignatureChangeDescription(indexOfDiff, nDiffs, paramTypes, arguments, argTypes);
if (changeDesc != null) {
IFunctionBinding methodDecl= methodBinding.getMethodDeclaration();
ITypeBinding[] declParamTypes= methodDecl.getParameterTypes();
ITypeBinding[] newParamTypes= new ITypeBinding[changeDesc.length];
for (int i= 0; i < newParamTypes.length; i++) {
newParamTypes[i]= changeDesc[i] == null ? declParamTypes[i] : ((EditDescription) changeDesc[i]).type;
}
boolean isVarArgs= methodDecl.isVarargs() && newParamTypes.length > 0 && newParamTypes[newParamTypes.length - 1].isArray();
String[] args= new String[] { ASTResolving.getMethodSignature(methodDecl, !targetCU.equals(cu)), ASTResolving.getMethodSignature(methodDecl.getName(), newParamTypes, isVarArgs) };
String label;
if (methodDecl.isConstructor()) {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changeparamsignature_constr_description, args);
} else {
label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changeparamsignature_description, args);
}
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
ChangeMethodSignatureProposal proposal= new ChangeMethodSignatureProposal(label, targetCU, invocationNode, methodDecl, changeDesc, null, 7, image);
proposals.add(proposal);
}
}
}
}
private static ChangeDescription[] createSignatureChangeDescription(int[] indexOfDiff, int nDiffs, ITypeBinding[] paramTypes, List arguments, ITypeBinding[] argTypes) {
ChangeDescription[] changeDesc= new ChangeDescription[paramTypes.length];
for (int i= 0; i < nDiffs; i++) {
int diffIndex= indexOfDiff[i];
Expression arg= (Expression) arguments.get(diffIndex);
String name= arg instanceof SimpleName ? ((SimpleName) arg).getIdentifier() : null;
ITypeBinding argType= argTypes[diffIndex];
changeDesc[diffIndex]= new EditDescription(argType, name);
}
return changeDesc;
}
private static ITypeBinding[] getArgumentTypes(List arguments) {
ITypeBinding[] res= new ITypeBinding[arguments.size()];
for (int i= 0; i < res.length; i++) {
Expression expression= (Expression) arguments.get(i);
ITypeBinding curr= expression.resolveTypeBinding();
if (curr == null) {
return null;
}
if (!curr.isNullType()) { // don't normalize null type
curr= Bindings.normalizeTypeBinding(curr);
if (curr == null) {
curr= expression.getAST().resolveWellKnownType("java.lang.Object"); //$NON-NLS-1$
}
}
res[i]= curr;
}
return res;
}
private static void addQualifierToOuterProposal(IInvocationContext context, FunctionInvocation invocationNode, IFunctionBinding binding, Collection proposals) throws CoreException {
ITypeBinding declaringType= binding.getDeclaringClass();
ITypeBinding parentType= Bindings.getBindingOfParentType(invocationNode);
ITypeBinding currType= parentType;
boolean isInstanceMethod= !Modifier.isStatic(binding.getModifiers());
while (currType != null && !Bindings.isSuperType(declaringType, currType)) {
if (isInstanceMethod && Modifier.isStatic(currType.getModifiers())) {
return;
}
currType= currType.getDeclaringClass();
}
if (currType == null || currType == parentType) {
return;
}
ASTRewrite rewrite= ASTRewrite.create(invocationNode.getAST());
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changetoouter_description, ASTResolving.getTypeSignature(currType));
Image image= JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, 8, image);
ImportRewrite imports= proposal.createImportRewrite(context.getASTRoot());
AST ast= invocationNode.getAST();
String qualifier= imports.addImport(currType);
Name name= ASTNodeFactory.newName(ast, qualifier);
Expression newExpression;
if (isInstanceMethod) {
ThisExpression expr= ast.newThisExpression();
expr.setQualifier(name);
newExpression= expr;
} else {
newExpression= name;
}
rewrite.set(invocationNode, FunctionInvocation.EXPRESSION_PROPERTY, newExpression, null);
proposals.add(proposal);
}
public static void getConstructorProposals(IInvocationContext context, IProblemLocation problem, Collection proposals) throws CoreException {
IJavaScriptUnit cu= context.getCompilationUnit();
JavaScriptUnit astRoot= context.getASTRoot();
ASTNode selectedNode= problem.getCoveringNode(astRoot);
if (selectedNode == null) {
return;
}
ITypeBinding targetBinding= null;
List arguments= null;
IFunctionBinding recursiveConstructor= null;
int type= selectedNode.getNodeType();
if (type == ASTNode.CLASS_INSTANCE_CREATION) {
ClassInstanceCreation creation= (ClassInstanceCreation) selectedNode;
IBinding binding= creation.getType().resolveBinding();
if (binding instanceof ITypeBinding) {
targetBinding= (ITypeBinding) binding;
arguments= creation.arguments();
}
} else if (type == ASTNode.SUPER_CONSTRUCTOR_INVOCATION) {
ITypeBinding typeBinding= Bindings.getBindingOfParentType(selectedNode);
if (typeBinding != null && !typeBinding.isAnonymous()) {
targetBinding= typeBinding.getSuperclass();
arguments= ((SuperConstructorInvocation) selectedNode).arguments();
}
} else if (type == ASTNode.CONSTRUCTOR_INVOCATION) {
ITypeBinding typeBinding= Bindings.getBindingOfParentType(selectedNode);
if (typeBinding != null && !typeBinding.isAnonymous()) {
targetBinding= typeBinding;
arguments= ((ConstructorInvocation) selectedNode).arguments();
recursiveConstructor= ASTResolving.findParentMethodDeclaration(selectedNode).resolveBinding();
}
}
if (targetBinding == null) {
return;
}
IFunctionBinding[] methods= targetBinding.getDeclaredMethods();
ArrayList similarElements= new ArrayList();
for (int i= 0; i < methods.length; i++) {
IFunctionBinding curr= methods[i];
if (curr.isConstructor() && recursiveConstructor != curr) {
similarElements.add(curr); // similar elements can contain a implicit default constructor
}
}
addParameterMissmatchProposals(context, problem, similarElements, selectedNode, arguments, proposals);
if (targetBinding.isFromSource()) {
ITypeBinding targetDecl= targetBinding.getTypeDeclaration();
IJavaScriptUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, targetDecl);
if (targetCU != null) {
String[] args= new String[] { ASTResolving.getMethodSignature( ASTResolving.getTypeSignature(targetDecl), getParameterTypes(arguments), false) };
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createconstructor_description, args);
Image image= JavaElementImageProvider.getDecoratedImage(JavaPluginImages.DESC_MISC_PUBLIC, JavaScriptElementImageDescriptor.CONSTRUCTOR, JavaElementImageProvider.SMALL_SIZE);
proposals.add(new NewMethodCompletionProposal(label, targetCU, selectedNode, arguments, targetDecl, 5, image));
}
}
}
public static void getAmbiguosTypeReferenceProposals(IInvocationContext context, IProblemLocation problem, Collection proposals) throws CoreException {
final IJavaScriptUnit cu= context.getCompilationUnit();
int offset= problem.getOffset();
int len= problem.getLength();
IJavaScriptElement[] elements= cu.codeSelect(offset, len);
for (int i= 0; i < elements.length; i++) {
IJavaScriptElement curr= elements[i];
if (curr instanceof IType && !TypeFilter.isFiltered((IType) curr)) {
String qualifiedTypeName= JavaModelUtil.getFullyQualifiedName((IType) curr);
JavaScriptUnit root= context.getASTRoot();
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_importexplicit_description, qualifiedTypeName);
Image image= JavaPluginImages.get(JavaPluginImages.IMG_OBJS_IMPDECL);
ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal(label, cu, ASTRewrite.create(root.getAST()), 5, image);
ImportRewrite imports= proposal.createImportRewrite(root);
imports.addImport(qualifiedTypeName);
proposals.add(proposal);
}
}
}
public static void getArrayAccessProposals(IInvocationContext context, IProblemLocation problem, Collection proposals) {
JavaScriptUnit root= context.getASTRoot();
ASTNode selectedNode= problem.getCoveringNode(root);
if (!(selectedNode instanceof FunctionInvocation)) {
return;
}
FunctionInvocation decl= (FunctionInvocation) selectedNode;
SimpleName nameNode= decl.getName();
String methodName= nameNode.getIdentifier();
IBinding[] bindings= (new ScopeAnalyzer(root)).getDeclarationsInScope(nameNode, ScopeAnalyzer.METHODS);
for (int i= 0; i < bindings.length; i++) {
String currName= bindings[i].getName();
if (NameMatcher.isSimilarName(methodName, currName)) {
String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_arraychangetomethod_description, currName);
proposals.add(new RenameNodeCompletionProposal(label, context.getCompilationUnit(), nameNode.getStartPosition(), nameNode.getLength(), currName, 6));
}
}
// always suggest 'length'
String lengthId= "length"; //$NON-NLS-1$
String label= CorrectionMessages.UnresolvedElementsSubProcessor_arraychangetolength_description;
int offset= nameNode.getStartPosition();
int length= decl.getStartPosition() + decl.getLength() - offset;
proposals.add(new RenameNodeCompletionProposal(label, context.getCompilationUnit(), offset, length, lengthId, 7));
}
// public static void getAnnotationMemberProposals(IInvocationContext context, IProblemLocation problem, Collection proposals) throws CoreException {
// JavaScriptUnit astRoot= context.getASTRoot();
// IJavaScriptUnit cu= context.getCompilationUnit();
// ASTNode selectedNode= problem.getCoveringNode(astRoot);
//
// Annotation annotation;
// String memberName;
// if (selectedNode.getLocationInParent() == MemberValuePair.NAME_PROPERTY) {
// if (selectedNode.getParent().getLocationInParent() != NormalAnnotation.VALUES_PROPERTY) {
// return;
// }
// annotation= (Annotation) selectedNode.getParent().getParent();
// memberName= ((SimpleName) selectedNode).getIdentifier();
// } else if (selectedNode.getLocationInParent() == SingleMemberAnnotation.VALUE_PROPERTY) {
// annotation= (Annotation) selectedNode.getParent();
// memberName= "value"; //$NON-NLS-1$
// } else {
// return;
// }
//
// ITypeBinding annotBinding= annotation.resolveTypeBinding();
// if (annotBinding == null) {
// return;
// }
//
//
// if (annotation instanceof NormalAnnotation) {
// // similar names
// IFunctionBinding[] otherMembers= annotBinding.getDeclaredMethods();
// for (int i= 0; i < otherMembers.length; i++) {
// IFunctionBinding binding= otherMembers[i];
// String curr= binding.getName();
// int relevance= NameMatcher.isSimilarName(memberName, curr) ? 6 : 3;
// String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_UnresolvedElementsSubProcessor_changetoattribute_description, curr);
// proposals.add(new RenameNodeCompletionProposal(label, cu, problem.getOffset(), problem.getLength(), curr, relevance));
// }
// }
//
// if (annotBinding.isFromSource()) {
// IJavaScriptUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, annotBinding);
// if (targetCU != null) {
// String label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_UnresolvedElementsSubProcessor_createattribute_description, memberName);
// Image image= JavaPluginImages.get(JavaPluginImages.IMG_MISC_PUBLIC);
// proposals.add(new NewAnnotationMemberProposal(label, targetCU, selectedNode, annotBinding, 5, image));
// }
// }
// }
}