@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 void visitClosure(GrClosableBlock closure) {
// do not go inside closures except gstring injections
if (closure.getParent() instanceof GrStringInjection) {
for (GrParameter parameter : closure.getAllParameters()) {
if (myPolicy.isVariableInitialized(parameter)) {
addNode(new ReadWriteVariableInstruction(parameter.getName(), parameter, WRITE));
}
}
addNode(new ReadWriteVariableInstruction("owner", closure.getLBrace(), WRITE));
super.visitClosure(closure);
return;
}
ReadWriteVariableInstruction[] reads =
ControlFlowBuilderUtil.getReadsWithoutPriorWrites(closure.getControlFlow(), false);
for (ReadWriteVariableInstruction read : reads) {
PsiElement element = read.getElement();
if (!(element instanceof GrReferenceExpression)
|| myPolicy.isReferenceAccepted((GrReferenceExpression) element)) {
addNodeAndCheckPending(
new ReadWriteVariableInstruction(read.getVariableName(), closure, READ));
}
}
addNodeAndCheckPending(new InstructionImpl(closure));
}
public ClosureSyntheticParameter(GrClosableBlock closure) {
super(
GrClosableBlock.IT_PARAMETER_NAME,
PsiType.getJavaLangObject(closure.getManager(), closure.getResolveScope()),
closure);
myClosure = closure;
setOptional(true);
}
@Override
protected void processIntention(@NotNull PsiElement element, Project project, Editor editor)
throws IncorrectOperationException {
final GrMethodCallExpression expression = (GrMethodCallExpression) element;
final GrClosableBlock block = expression.getClosureArguments()[0];
final GrParameterList parameterList = block.getParameterList();
final GrParameter[] parameters = parameterList.getParameters();
String var;
if (parameters.length == 1) {
var = parameters[0].getText();
var = StringUtil.replace(var, GrModifier.DEF, "");
} else {
var = "it";
}
final GrExpression invokedExpression = expression.getInvokedExpression();
GrExpression qualifier = ((GrReferenceExpression) invokedExpression).getQualifierExpression();
final GroovyPsiElementFactory elementFactory =
GroovyPsiElementFactory.getInstance(element.getProject());
if (qualifier == null) {
qualifier = elementFactory.createExpressionFromText("this");
}
StringBuilder builder = new StringBuilder();
builder.append("for (").append(var).append(" in ").append(qualifier.getText()).append(") {\n");
String text = block.getText();
final PsiElement blockArrow = block.getArrow();
int index;
if (blockArrow != null) {
index = blockArrow.getStartOffsetInParent() + blockArrow.getTextLength();
} else {
index = 1;
}
while (index < text.length() && Character.isWhitespace(text.charAt(index))) index++;
text = text.substring(index, text.length() - 1);
builder.append(text);
builder.append("}");
final GrStatement statement = elementFactory.createStatementFromText(builder.toString());
GrForStatement forStatement = (GrForStatement) expression.replaceWithStatement(statement);
final GrForClause clause = forStatement.getClause();
GrVariable variable = clause.getDeclaredVariable();
forStatement = updateReturnStatements(forStatement);
if (variable == null) return;
if (ApplicationManager.getApplication().isUnitTestMode()) return;
final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project);
final Document doc = documentManager.getDocument(element.getContainingFile());
if (doc == null) return;
documentManager.doPostponedOperationsAndUnblockDocument(doc);
editor.getCaretModel().moveToOffset(variable.getTextOffset());
new VariableInplaceRenamer(variable, editor).performInplaceRename();
}
private static boolean closableBlockExpressionsAreEquivalent(
GrClosableBlock closableBlock1, GrClosableBlock closableBlock2) {
final GrStatement[] statements1 = closableBlock1.getStatements();
final GrStatement[] statements2 = closableBlock2.getStatements();
if (statements1.length != statements2.length) {
return false;
}
for (int i = 0; i < statements1.length; i++) {
if (!statementsAreEquivalent(statements1[i], statements2[i])) {
return false;
}
}
return true;
}
@Nullable
public static PsiType getExpectedClosureReturnType(GrClosableBlock closure) {
final Set<PsiType> expectedTypes = getDefaultExpectedTypes(closure);
List<PsiType> expectedReturnTypes = new ArrayList<PsiType>();
for (PsiType expectedType : expectedTypes) {
if (!(expectedType instanceof PsiClassType)) return null;
final PsiClassType.ClassResolveResult resolveResult =
((PsiClassType) expectedType).resolveGenerics();
final PsiClass resolved = resolveResult.getElement();
if (resolved == null
|| !(GroovyCommonClassNames.GROOVY_LANG_CLOSURE.equals(resolved.getQualifiedName())))
return null;
final PsiTypeParameter[] typeParameters = resolved.getTypeParameters();
if (typeParameters.length != 1) return null;
final PsiTypeParameter expected = typeParameters[0];
final PsiType expectedReturnType = resolveResult.getSubstitutor().substitute(expected);
if (expectedReturnType == PsiType.VOID || expectedReturnType == null) return null;
expectedReturnTypes.add(expectedReturnType);
}
return TypesUtil.getLeastUpperBoundNullable(expectedReturnTypes, closure.getManager());
}
@Override
public void visitClosure(GrClosableBlock closure) {
if (closure == expr) {
super.visitClosure(closure);
} else {
closure.accept(new ConstantChecker(closure, scope));
}
}
public PsiElement setName(@NotNull String newName) throws IncorrectOperationException {
if (!newName.equals(getName())) {
GrParameter parameter =
GroovyPsiElementFactory.getInstance(getProject())
.createParameter(newName, (String) null, null);
myClosure.addParameter(parameter);
}
return this;
}
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]);
}
}
private static void execute(final GrField field, final Collection<PsiElement> fieldUsages) {
final GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(field.getProject());
final StringBuilder builder = new StringBuilder(field.getTextLength());
final GrClosableBlock block = (GrClosableBlock) field.getInitializerGroovy();
final GrModifierList modifierList = field.getModifierList();
if (modifierList.getModifiers().length > 0 || modifierList.getAnnotations().length > 0) {
builder.append(modifierList.getText());
} else {
builder.append(GrModifier.DEF);
}
builder.append(' ').append(field.getName());
builder.append('(');
if (block.hasParametersSection()) {
builder.append(block.getParameterList().getText());
} else {
builder.append("def it = null");
}
builder.append(") {");
ApplicationManager.getApplication()
.runWriteAction(
new Runnable() {
public void run() {
block.getParameterList().delete();
block.getLBrace().delete();
final PsiElement psiElement =
PsiUtil.skipWhitespacesAndComments(block.getFirstChild(), true);
if (psiElement != null && "->".equals(psiElement.getText())) {
psiElement.delete();
}
builder.append(block.getText());
final GrMethod method =
GroovyPsiElementFactory.getInstance(field.getProject())
.createMethodFromText(builder.toString());
field.getParent().replace(method);
for (PsiElement usage : fieldUsages) {
if (usage instanceof GrReferenceExpression) {
final PsiElement parent = usage.getParent();
StringBuilder newRefText = new StringBuilder();
if (parent instanceof GrReferenceExpression
&& usage == ((GrReferenceExpression) parent).getQualifier()
&& "call".equals(((GrReferenceExpression) parent).getReferenceName())) {
newRefText.append(usage.getText());
usage = parent;
} else {
PsiElement qualifier = ((GrReferenceExpression) usage).getQualifier();
if (qualifier == null) {
if (parent instanceof GrReferenceExpression
&& ((GrReferenceExpression) parent).getQualifier() != null
&& usage != ((GrReferenceExpression) parent).getQualifier()) {
qualifier = ((GrReferenceExpression) parent).getQualifier();
usage = parent;
}
}
if (qualifier != null) {
newRefText.append(qualifier.getText()).append('.');
((GrReferenceExpression) usage).setQualifier(null);
} else {
newRefText.append("this.");
}
newRefText.append('&').append(usage.getText());
}
usage.replace(factory.createReferenceExpressionFromText(newRefText.toString()));
}
}
}
});
}