@Nullable
public static GrExpression getRuntimeQualifier(GrReferenceExpression refExpr) {
GrExpression qualifier = refExpr.getQualifierExpression();
if (qualifier != null) return qualifier;
for (GrClosableBlock closure = PsiTreeUtil.getParentOfType(refExpr, GrClosableBlock.class);
closure != null;
closure = PsiTreeUtil.getParentOfType(closure, GrClosableBlock.class)) {
PsiElement parent = closure.getParent();
if (parent instanceof GrArgumentList) parent = parent.getParent();
if (!(parent instanceof GrMethodCall)) continue;
GrExpression funExpr = ((GrMethodCall) parent).getInvokedExpression();
if (!(funExpr instanceof GrReferenceExpression)) return funExpr;
final PsiElement resolved = ((GrReferenceExpression) funExpr).resolve();
if (!(resolved instanceof PsiMethod)) return funExpr;
if (resolved instanceof GrGdkMethod
&& isFromDGM((GrGdkMethod) resolved)
&& !GdkMethodUtil.isWithName(((GrGdkMethod) resolved).getStaticMethod().getName())) {
continue;
}
qualifier = ((GrReferenceExpression) funExpr).getQualifierExpression();
if (qualifier != null) return qualifier;
}
return null;
}
public static void deleteStatementTail(PsiElement container, @NotNull PsiElement statement) {
PsiElement next = statement.getNextSibling();
while (next != null) {
final ASTNode node = next.getNode();
final IElementType type = node.getElementType();
if (type == mSEMI) {
final PsiElement nnext = next.getNextSibling();
container.deleteChildRange(next, next);
next = nnext;
} else if (type == mNLS || type == TokenType.WHITE_SPACE && next.getText().contains("\n")) {
final String text = next.getText();
final int first = text.indexOf("\n");
final int second = text.indexOf("\n", first + 1);
if (second < 0) {
container.deleteChildRange(next, next);
return;
}
final String substring = text.substring(second);
container
.getNode()
.replaceChild(
node,
createSingleLeafElement(
type, substring, 0, substring.length(), null, container.getManager()));
return;
} else {
break;
}
}
}
public static boolean hasNamedArguments(@Nullable GrNamedArgumentsOwner list) {
if (list == null) return false;
for (PsiElement child = list.getFirstChild(); child != null; child = child.getNextSibling()) {
if (child instanceof GrNamedArgument) return true;
}
return false;
}
public static boolean hasExpressionArguments(@Nullable GrArgumentList list) {
if (list == null) return false;
for (PsiElement child = list.getFirstChild(); child != null; child = child.getNextSibling()) {
if (child instanceof GrExpression) return true;
}
return false;
}
public static boolean hasClosureArguments(@Nullable GrCall call) {
if (call == null) return false;
for (PsiElement child = call.getFirstChild(); child != null; child = child.getNextSibling()) {
if (child instanceof GrClosableBlock) return true;
}
return false;
}
public static PsiElement findTailingSemicolon(@NotNull GrStatement statement) {
final PsiElement nextNonSpace = PsiUtil.skipWhitespaces(statement.getNextSibling(), true);
if (nextNonSpace != null && nextNonSpace.getNode().getElementType() == mSEMI) {
return nextNonSpace;
}
return null;
}
public static GrStatement[] getStatements(final GrStatementOwner statementOwner) {
List<GrStatement> result = new ArrayList<GrStatement>();
for (PsiElement cur = statementOwner.getFirstChild(); cur != null; cur = cur.getNextSibling()) {
if (cur instanceof GrStatement) {
result.add((GrStatement) cur);
}
}
return result.toArray(new GrStatement[result.size()]);
}
@Override
public void visitParenthesizedExpression(GrParenthesizedExpression expression) {
final PsiElement parent = expression.getParent();
if (parent instanceof GroovyPsiElement) {
((GroovyPsiElement) parent).accept(this);
} else {
parent.accept(new GroovyPsiElementVisitor(this));
}
}
/** @return leading regex or null if it does not exist */
@Nullable
private static GrLiteral getRegexAtTheBeginning(PsiElement expr) {
PsiElement fchild = expr;
while (fchild != null) {
if (fchild instanceof GrLiteral && GrStringUtil.isRegex((GrLiteral) fchild))
return (GrLiteral) fchild;
fchild = fchild.getFirstChild();
}
return null;
}
@Override
public void visitCaseLabel(GrCaseLabel caseLabel) {
final PsiElement parent = caseLabel.getParent().getParent();
assert parent instanceof GrSwitchStatement : parent + " of class " + parent.getClass();
final GrExpression condition = ((GrSwitchStatement) parent).getCondition();
if (condition == null) return;
final PsiType type = condition.getType();
if (type == null) return;
myResult = new TypeConstraint[] {SubtypeConstraint.create(type)};
}
@NotNull
public static PsiType createSetType(@NotNull PsiElement context, @NotNull PsiType type) {
JavaPsiFacade facade = JavaPsiFacade.getInstance(context.getProject());
GlobalSearchScope resolveScope = context.getResolveScope();
PsiClass setClass = facade.findClass(JAVA_UTIL_SET, resolveScope);
if (setClass != null && setClass.getTypeParameters().length == 1) {
return facade.getElementFactory().createType(setClass, type);
}
return facade.getElementFactory().createTypeByFQClassName(JAVA_UTIL_SET, resolveScope);
}
@Override
public void visitAnnotationArrayInitializer(GrAnnotationArrayInitializer arrayInitializer) {
final GrAnnotationNameValuePair nameValuePair =
PsiTreeUtil.getParentOfType(
arrayInitializer,
GrAnnotationNameValuePair.class,
true,
GrDefaultAnnotationValue.class);
if (nameValuePair != null) {
final PsiClass annot = ResolveUtil.resolveAnnotation(arrayInitializer);
if (annot == null) return;
final String name = nameValuePair.getName();
if (name == null) return;
final PsiMethod[] attrs = annot.findMethodsByName(name, false);
if (attrs.length > 0) {
PsiType type = attrs[0].getReturnType();
while (type instanceof PsiArrayType) type = ((PsiArrayType) type).getComponentType();
if (type != null && isAcceptableAnnotationValueType(type)) {
myResult = createSimpleSubTypeResult(type);
}
}
} else {
final GrAnnotationMethod method =
PsiTreeUtil.getParentOfType(arrayInitializer, GrAnnotationMethod.class);
assert method != null;
PsiType type = method.getReturnType();
int count = 1;
PsiElement parent = arrayInitializer.getParent();
while (parent instanceof GrAnnotationArrayInitializer) {
count++;
parent = parent.getParent();
}
while (type instanceof PsiArrayType && count > 0) {
type = ((PsiArrayType) type).getComponentType();
count--;
}
if (type != null && isAcceptableAnnotationValueType(type)) {
myResult = createSimpleSubTypeResult(type);
}
}
}
public static void removeVariable(GrVariable variable) {
final GrVariableDeclaration varDecl = (GrVariableDeclaration) variable.getParent();
final List<GrVariable> variables = Arrays.asList(varDecl.getVariables());
if (!variables.contains(variable)) {
throw new IllegalArgumentException();
}
final PsiElement parent = varDecl.getParent();
final ASTNode owner = parent.getNode();
if (variables.size() == 1 && owner != null) {
PsiElement next = varDecl.getNextSibling();
// remove redundant semicolons
//noinspection ConstantConditions
while (next != null && next.getNode() != null && next.getNode().getElementType() == mSEMI) {
PsiElement tmpNext = next.getNextSibling();
//noinspection ConstantConditions
next.delete();
next = tmpNext;
}
removeNewLineAfter(varDecl);
varDecl.delete();
return;
}
variable.delete();
}
@Nullable
private InstructionImpl findInstruction(PsiElement element) {
final Iterator<InstructionImpl> iterator = myProcessingStack.descendingIterator();
while (iterator.hasNext()) {
final InstructionImpl instruction = iterator.next();
if (element.equals(instruction.getElement())) return instruction;
}
return null;
}
public static boolean isAssignableWithoutConversions(
@Nullable PsiType lType, @Nullable PsiType rType, @NotNull PsiElement context) {
if (lType == null || rType == null) return false;
if (rType == PsiType.NULL) {
return !(lType instanceof PsiPrimitiveType);
}
PsiManager manager = context.getManager();
GlobalSearchScope scope = context.getResolveScope();
if (rType instanceof GrTupleType && ((GrTupleType) rType).getComponentTypes().length == 0) {
if (lType instanceof PsiArrayType
|| InheritanceUtil.isInheritor(lType, JAVA_UTIL_LIST)
|| InheritanceUtil.isInheritor(lType, JAVA_UTIL_SET)) {
return true;
}
}
if (isClassType(rType, GROOVY_LANG_GSTRING) && lType.equalsToText(JAVA_LANG_STRING)) {
return true;
}
if (isNumericType(lType) && isNumericType(rType)) {
lType = unboxPrimitiveTypeWrapper(lType);
if (isClassType(lType, JAVA_MATH_BIG_DECIMAL)) lType = PsiType.DOUBLE;
rType = unboxPrimitiveTypeWrapper(rType);
if (isClassType(rType, JAVA_MATH_BIG_DECIMAL)) rType = PsiType.DOUBLE;
} else {
rType = boxPrimitiveType(rType, manager, scope);
lType = boxPrimitiveType(lType, manager, scope);
}
if (rType instanceof GrMapType || rType instanceof GrTupleType) {
Boolean result = isAssignableForNativeTypes(lType, (PsiClassType) rType, context);
if (result != null && result.booleanValue()) return true;
}
if (TypeConversionUtil.isAssignable(lType, rType)) {
return true;
}
return false;
}
@Nullable
public static PsiElement realPrevious(PsiElement previousLeaf) {
while (previousLeaf != null
&& (previousLeaf instanceof PsiWhiteSpace
|| previousLeaf instanceof PsiComment
|| previousLeaf instanceof PsiErrorElement)) {
previousLeaf = previousLeaf.getPrevSibling();
}
return previousLeaf;
}
public static <T extends PsiElement> void setQualifier(
@NotNull GrQualifiedReference<T> ref, @Nullable T newQualifier) {
final T oldQualifier = ref.getQualifier();
final ASTNode node = ref.getNode();
final PsiElement refNameElement = ref.getReferenceNameElement();
if (newQualifier == null) {
if (oldQualifier != null && refNameElement != null) {
ref.deleteChildRange(ref.getFirstChild(), refNameElement.getPrevSibling());
}
} else {
if (oldQualifier == null) {
if (refNameElement != null) {
node.addLeaf(mDOT, ".", refNameElement.getNode());
ref.addBefore(newQualifier, refNameElement.getPrevSibling());
}
} else {
oldQualifier.replace(newQualifier);
}
}
}
@NotNull
public static String getName(@NotNull GrNamedElement namedElement) {
PsiElement nameElement = namedElement.getNameIdentifierGroovy();
ASTNode node = nameElement.getNode();
LOG.assertTrue(node != null);
if (node.getElementType() == mIDENT) {
return nameElement.getText();
}
if (node.getElementType() == mSTRING_LITERAL || node.getElementType() == mGSTRING_LITERAL) {
final Object value = GrLiteralImpl.getLiteralValue(nameElement);
if (value instanceof String) {
return (String) value;
} else {
return GrStringUtil.removeQuotes(nameElement.getText());
}
}
throw new IncorrectOperationException(
"incorrect name element: " + node.getElementType() + ", named element: " + namedElement);
}
private void buildFlowForClosure(final GrClosableBlock closure) {
for (GrParameter parameter : closure.getAllParameters()) {
if (myPolicy.isVariableInitialized(parameter)) {
addNode(new ReadWriteVariableInstruction(parameter.getName(), parameter, WRITE));
}
}
addNode(new ReadWriteVariableInstruction("owner", closure.getLBrace(), WRITE));
PsiElement child = closure.getFirstChild();
while (child != null) {
if (child instanceof GroovyPsiElement) {
((GroovyPsiElement) child).accept(this);
}
child = child.getNextSibling();
}
final GrStatement[] statements = closure.getStatements();
if (statements.length > 0) {
handlePossibleReturn(statements[statements.length - 1]);
}
}
@Nullable
public static PsiType inferExpectedTypeForDiamond(GrExpression diamondNew) {
PsiElement skipped = PsiUtil.skipParentheses(diamondNew, true);
assert skipped != null;
PsiElement pparent = skipped.getParent();
if (pparent instanceof GrAssignmentExpression
&& PsiTreeUtil.isAncestor(
((GrAssignmentExpression) pparent).getRValue(), diamondNew, false)) {
GrExpression lValue = ((GrAssignmentExpression) pparent).getLValue();
if (PsiUtil.mightBeLValue(lValue)) {
return lValue.getNominalType();
}
} else if (pparent instanceof GrVariable
&& ((GrVariable) pparent).getInitializerGroovy() == diamondNew) {
return ((GrVariable) pparent).getDeclaredType();
} else if (pparent instanceof GrListOrMap) {
PsiElement ppparent = PsiUtil.skipParentheses(pparent.getParent(), true);
if (ppparent instanceof GrAssignmentExpression
&& PsiTreeUtil.isAncestor(
((GrAssignmentExpression) ppparent).getRValue(), pparent, false)) {
PsiElement lValue =
PsiUtil.skipParentheses(((GrAssignmentExpression) ppparent).getLValue(), false);
if (lValue instanceof GrTupleExpression) {
GrExpression[] initializers = ((GrListOrMap) pparent).getInitializers();
int index = ArrayUtil.find(initializers, diamondNew);
GrExpression[] expressions = ((GrTupleExpression) lValue).getExpressions();
if (index < expressions.length) {
return expressions[index].getNominalType();
}
}
}
}
return null;
}
@Nullable
public static GrExpression replaceExpression(
GrExpression oldExpr, GrExpression newExpr, boolean removeUnnecessaryParentheses) {
PsiElement oldParent = oldExpr.getParent();
if (oldParent == null) throw new PsiInvalidElementAccessException(oldExpr);
if (!(oldExpr instanceof GrApplicationStatement)) {
newExpr = ApplicationStatementUtil.convertToMethodCallExpression(newExpr);
}
// Remove unnecessary parentheses
if (removeUnnecessaryParentheses
&& oldParent instanceof GrParenthesizedExpression
&& !(oldParent.getParent() instanceof GrArgumentLabel)) {
return ((GrExpression) oldParent)
.replaceWithExpression(newExpr, removeUnnecessaryParentheses);
}
// regexes cannot be after identifier , try to replace it with simple string
if (getRegexAtTheBeginning(newExpr) != null && isAfterIdentifier(oldExpr)) {
final PsiElement copy = newExpr.copy();
final GrLiteral regex = getRegexAtTheBeginning(copy);
LOG.assertTrue(regex != null);
final GrLiteral stringLiteral = GrStringUtil.createStringFromRegex(regex);
if (regex == copy) {
return oldExpr.replaceWithExpression(stringLiteral, removeUnnecessaryParentheses);
} else {
regex.replace(stringLiteral);
return oldExpr.replaceWithExpression((GrExpression) copy, removeUnnecessaryParentheses);
}
}
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(oldExpr.getProject());
if (oldParent instanceof GrStringInjection) {
if (newExpr instanceof GrString
|| newExpr instanceof GrLiteral && ((GrLiteral) newExpr).getValue() instanceof String) {
return GrStringUtil.replaceStringInjectionByLiteral(
(GrStringInjection) oldParent, (GrLiteral) newExpr);
} else {
newExpr = factory.createExpressionFromText("{" + newExpr.getText() + "}");
oldParent.getNode().replaceChild(oldExpr.getNode(), newExpr.getNode());
return newExpr;
}
}
if (PsiTreeUtil.getParentOfType(oldExpr, GrStringInjection.class, false, GrCodeBlock.class)
!= null) {
final PsiElement replaced = oldExpr.replace(newExpr);
final GrStringInjection stringInjection =
PsiTreeUtil.getParentOfType(replaced, GrStringInjection.class);
GrStringUtil.wrapInjection(stringInjection);
assert stringInjection != null;
return stringInjection.getClosableBlock();
}
// check priorities
if (oldParent instanceof GrExpression && !(oldParent instanceof GrParenthesizedExpression)) {
GrExpression addedParenth =
addParenthesesIfNeeded(newExpr, oldExpr, (GrExpression) oldParent);
if (newExpr != addedParenth) {
return oldExpr.replaceWithExpression(addedParenth, removeUnnecessaryParentheses);
}
}
// if replace closure argument with expression
// we should add the expression in arg list
if (oldExpr instanceof GrClosableBlock
&& !(newExpr instanceof GrClosableBlock)
&& oldParent instanceof GrMethodCallExpression
&& ArrayUtil.contains(
oldExpr, ((GrMethodCallExpression) oldParent).getClosureArguments())) {
return ((GrMethodCallExpression) oldParent)
.replaceClosureArgument((GrClosableBlock) oldExpr, newExpr);
}
newExpr = (GrExpression) oldExpr.replace(newExpr);
// if newExpr is the first grand child of command argument list we should replace command arg
// list with parenthesised arg list.
// In other case the code will be broken. So we try to find wrapping command arg list counting
// levels. After arg list replace we go inside it
// to find target parenthesised expression.
if (newExpr instanceof GrParenthesizedExpression && isFirstChild(newExpr)) {
int parentCount = 0;
PsiElement element = oldParent;
while (element != null && !(element instanceof GrCommandArgumentList)) {
if (element instanceof GrCodeBlock || element instanceof GrParenthesizedExpression) break;
if (element instanceof PsiFile) break;
final PsiElement parent = element.getParent();
if (parent == null) break;
if (!isFirstChild(element)) break;
element = parent;
parentCount++;
}
if (element instanceof GrCommandArgumentList) {
final GrCommandArgumentList commandArgList = (GrCommandArgumentList) element;
final PsiElement parent = commandArgList.getParent();
LOG.assertTrue(parent instanceof GrApplicationStatement);
final GrMethodCall methodCall =
factory.createMethodCallByAppCall((GrApplicationStatement) parent);
final GrMethodCall newCall = (GrMethodCall) parent.replace(methodCall);
PsiElement result = newCall.getArgumentList().getAllArguments()[0];
for (int i = 0; i < parentCount; i++) {
result = PsiUtil.skipWhitespacesAndComments(result.getFirstChild(), true);
}
LOG.assertTrue(result instanceof GrParenthesizedExpression);
return (GrExpression) result;
}
}
return newExpr;
}
@NotNull
public static PsiClassType createTypeByFQClassName(
@NotNull String fqName, @NotNull PsiElement context) {
return GroovyPsiManager.getInstance(context.getProject())
.createTypeByFQClassName(fqName, context.getResolveScope());
}
@NotNull
public static PsiClassType getJavaLangObject(@NotNull PsiElement context) {
return PsiType.getJavaLangObject(context.getManager(), context.getResolveScope());
}
public static boolean isAssignable(
@Nullable PsiType lType, @Nullable PsiType rType, @NotNull PsiElement context) {
if (lType == null || rType == null) {
return false;
}
if (rType instanceof PsiIntersectionType) {
for (PsiType child : ((PsiIntersectionType) rType).getConjuncts()) {
if (isAssignable(lType, child, context)) {
return true;
}
}
return false;
}
if (lType instanceof PsiIntersectionType) {
for (PsiType child : ((PsiIntersectionType) lType).getConjuncts()) {
if (!isAssignable(child, rType, context)) {
return false;
}
}
return true;
}
if (rType == PsiType.NULL) {
return !(lType instanceof PsiPrimitiveType);
}
if (isNumericType(lType) && isNumericType(rType)) {
return true;
}
if (isClassType(lType, JAVA_LANG_STRING)) {
return true;
}
final PsiManager manager = context.getManager();
final GlobalSearchScope scope = context.getResolveScope();
if (lType instanceof PsiArrayType) {
PsiType lComponentType = ((PsiArrayType) lType).getComponentType();
PsiType rComponentType = ClosureParameterEnhancer.findTypeForIteration(rType, context);
if (rComponentType != null && isAssignable(lComponentType, rComponentType, context)) {
return true;
}
}
if (unboxPrimitiveTypeWrapper(lType) == PsiType.CHAR
&& (isClassType(rType, JAVA_LANG_STRING) || isClassType(rType, GROOVY_LANG_GSTRING))) {
return true;
}
if (isAssignableByMethodCallConversion(lType, rType, context)) return true;
lType = boxPrimitiveType(lType, manager, scope);
rType = boxPrimitiveType(rType, manager, scope);
if (lType.isAssignableFrom(rType)) {
return true;
}
if (context instanceof GroovyPsiElement) {
for (GrTypeConverter converter : GrTypeConverter.EP_NAME.getExtensions()) {
if (!converter.isAllowedInMethodCall()) {
Boolean result = converter.isConvertible(lType, rType, (GroovyPsiElement) context);
if (result != null) {
return result;
}
}
}
}
return false;
}
private static boolean isAfterIdentifier(PsiElement el) {
final PsiElement prev = GeeseUtil.getPreviousNonWhitespaceToken(el);
return prev != null && prev.getNode().getElementType() == mIDENT;
}
public static void setName(String name, PsiElement nameElement) {
final PsiElement newNameElement =
GroovyPsiElementFactory.getInstance(nameElement.getProject())
.createReferenceNameFromText(name);
nameElement.replace(newNameElement);
}
private static boolean isFirstChild(PsiElement element) {
return PsiUtil.skipWhitespacesAndComments(element.getParent().getFirstChild(), true) == element;
}
public static boolean hasElementType(@Nullable PsiElement next, final TokenSet set) {
if (next == null) return false;
final ASTNode astNode = next.getNode();
return astNode != null && set.contains(astNode.getElementType());
}
public static boolean hasElementType(
@Nullable PsiElement next, @NotNull final IElementType type) {
if (next == null) return false;
final ASTNode astNode = next.getNode();
return astNode != null && astNode.getElementType() == type;
}