public void visitMethodCallExpression(MethodCallExpression call) {
if (call.isImplicitThis() && call.getMethod() instanceof ConstantExpression) {
ConstantExpression methodNameConstant = (ConstantExpression) call.getMethod();
Object value = methodNameConstant.getText();
if (!(value instanceof String)) {
throw new GroovyBugError(
"tried to make a method call with a non-String constant method name.");
}
String methodName = (String) value;
Variable v = checkVariableNameForDeclaration(methodName, call);
if (v != null && !(v instanceof DynamicVariable)) {
checkVariableContextAccess(v, call);
}
if (v instanceof VariableExpression || v instanceof Parameter) {
VariableExpression object = new VariableExpression(v);
object.setSourcePosition(methodNameConstant);
call.setObjectExpression(object);
ConstantExpression method = new ConstantExpression("call");
method.setSourcePosition(methodNameConstant); // important for GROOVY-4344
call.setImplicitThis(false);
call.setMethod(method);
}
}
super.visitMethodCallExpression(call);
}
private Expression transformMethodCallExpression(final MethodCallExpression exp) {
Expression objectExpression = transform(exp.getObjectExpression());
ClassNode traitReceiver = objectExpression.getNodeMetaData(SuperCallTraitTransformer.class);
if (traitReceiver != null) {
TraitHelpersTuple helpers = Traits.findHelpers(traitReceiver);
// (SomeTrait.super).foo() --> SomeTrait$Helper.foo(this)
ClassExpression receiver = new ClassExpression(helpers.getHelper());
ArgumentListExpression newArgs = new ArgumentListExpression();
Expression arguments = exp.getArguments();
newArgs.addExpression(new VariableExpression("this"));
if (arguments instanceof TupleExpression) {
List<Expression> expressions = ((TupleExpression) arguments).getExpressions();
for (Expression expression : expressions) {
newArgs.addExpression(transform(expression));
}
} else {
newArgs.addExpression(arguments);
}
MethodCallExpression result = new MethodCallExpression(receiver, exp.getMethod(), newArgs);
result.setImplicitThis(false);
result.setSpreadSafe(exp.isSpreadSafe());
result.setSafe(exp.isSafe());
result.setSourcePosition(exp);
return result;
}
return super.transform(exp);
}
private void createDirectCallMethod(final ClassNode closureClass, final MethodNode doCallMethod) {
// in case there is no "call" method on the closure, we can create a "fast invocation" paths
// to avoid going through ClosureMetaClass by call(Object...) method
// we can't have a specialized version of call(Object...) because the dispatch logic in
// ClosureMetaClass
// is too complex!
// call(Object)
Parameter args = new Parameter(ClassHelper.OBJECT_TYPE, "args");
MethodCallExpression doCall1arg =
new MethodCallExpression(
new VariableExpression("this"),
"doCall",
new ArgumentListExpression(new VariableExpression(args)));
doCall1arg.setImplicitThis(true);
doCall1arg.setMethodTarget(doCallMethod);
closureClass.addMethod(
new MethodNode(
"call",
Opcodes.ACC_PUBLIC,
ClassHelper.OBJECT_TYPE,
new Parameter[] {args},
ClassNode.EMPTY_ARRAY,
new ReturnStatement(doCall1arg)));
// call()
MethodCallExpression doCallNoArgs =
new MethodCallExpression(
new VariableExpression("this"),
"doCall",
new ArgumentListExpression(new ConstantExpression(null)));
doCallNoArgs.setImplicitThis(true);
doCallNoArgs.setMethodTarget(doCallMethod);
closureClass.addMethod(
new MethodNode(
"call",
Opcodes.ACC_PUBLIC,
ClassHelper.OBJECT_TYPE,
Parameter.EMPTY_ARRAY,
ClassNode.EMPTY_ARRAY,
new ReturnStatement(doCallNoArgs)));
}
@SuppressWarnings("unchecked")
private boolean makeGetPrivateFieldWithBridgeMethod(
final Expression receiver,
final ClassNode receiverType,
final String fieldName,
final boolean safe,
final boolean implicitThis) {
FieldNode field = receiverType.getField(fieldName);
ClassNode classNode = controller.getClassNode();
if (field != null
&& Modifier.isPrivate(field.getModifiers())
&& (StaticInvocationWriter.isPrivateBridgeMethodsCallAllowed(receiverType, classNode)
|| StaticInvocationWriter.isPrivateBridgeMethodsCallAllowed(classNode, receiverType))
&& !receiverType.equals(classNode)) {
Map<String, MethodNode> accessors =
(Map<String, MethodNode>)
receiverType
.redirect()
.getNodeMetaData(StaticCompilationMetadataKeys.PRIVATE_FIELDS_ACCESSORS);
if (accessors != null) {
MethodNode methodNode = accessors.get(fieldName);
if (methodNode != null) {
MethodCallExpression mce =
new MethodCallExpression(
receiver,
methodNode.getName(),
new ArgumentListExpression(
field.isStatic() ? new ConstantExpression(null) : receiver));
mce.setMethodTarget(methodNode);
mce.setSafe(safe);
mce.setImplicitThis(implicitThis);
mce.visit(controller.getAcg());
return true;
}
}
}
return false;
}
@Override
public void makeGetPropertySite(
Expression receiver,
final String methodName,
final boolean safe,
final boolean implicitThis) {
Object dynamic =
receiver.getNodeMetaData(StaticCompilationMetadataKeys.RECEIVER_OF_DYNAMIC_PROPERTY);
if (dynamic != null) {
MethodNode target =
safe ? INVOKERHELPER_GETPROPERTYSAFE_METHOD : INVOKERHELPER_GETPROPERTY_METHOD;
MethodCallExpression mce =
new MethodCallExpression(
new ClassExpression(INVOKERHELPER_TYPE),
target.getName(),
new ArgumentListExpression(receiver, new ConstantExpression(methodName)));
mce.setSafe(false);
mce.setImplicitThis(false);
mce.setMethodTarget(target);
mce.visit(controller.getAcg());
return;
}
TypeChooser typeChooser = controller.getTypeChooser();
ClassNode classNode = controller.getClassNode();
ClassNode receiverType =
(ClassNode) receiver.getNodeMetaData(StaticCompilationMetadataKeys.PROPERTY_OWNER);
if (receiverType == null) {
receiverType = typeChooser.resolveType(receiver, classNode);
}
Object type = receiver.getNodeMetaData(StaticTypesMarker.INFERRED_TYPE);
if (type == null && receiver instanceof VariableExpression) {
Variable variable = ((VariableExpression) receiver).getAccessedVariable();
if (variable instanceof Expression) {
type = ((Expression) variable).getNodeMetaData(StaticTypesMarker.INFERRED_TYPE);
}
}
if (type != null) {
// in case a "flow type" is found, it is preferred to use it instead of
// the declaration type
receiverType = (ClassNode) type;
}
boolean isClassReceiver = false;
if (isClassClassNodeWrappingConcreteType(receiverType)) {
isClassReceiver = true;
receiverType = receiverType.getGenericsTypes()[0].getType();
}
MethodVisitor mv = controller.getMethodVisitor();
if (receiverType.isArray() && methodName.equals("length")) {
receiver.visit(controller.getAcg());
ClassNode arrayGetReturnType = typeChooser.resolveType(receiver, classNode);
controller.getOperandStack().doGroovyCast(arrayGetReturnType);
mv.visitInsn(ARRAYLENGTH);
controller.getOperandStack().replace(int_TYPE);
return;
} else if ((receiverType.implementsInterface(COLLECTION_TYPE)
|| COLLECTION_TYPE.equals(receiverType))
&& ("size".equals(methodName) || "length".equals(methodName))) {
MethodCallExpression expr =
new MethodCallExpression(receiver, "size", ArgumentListExpression.EMPTY_ARGUMENTS);
expr.setMethodTarget(COLLECTION_SIZE_METHOD);
expr.setImplicitThis(implicitThis);
expr.setSafe(safe);
expr.visit(controller.getAcg());
return;
}
if (makeGetPropertyWithGetter(receiver, receiverType, methodName, safe, implicitThis)) return;
if (makeGetField(
receiver,
receiverType,
methodName,
implicitThis,
samePackages(receiverType.getPackageName(), classNode.getPackageName()))) return;
if (receiverType.isEnum()) {
mv.visitFieldInsn(
GETSTATIC,
BytecodeHelper.getClassInternalName(receiverType),
methodName,
BytecodeHelper.getTypeDescription(receiverType));
controller.getOperandStack().push(receiverType);
return;
}
if (receiver instanceof ClassExpression) {
if (makeGetField(
receiver,
receiver.getType(),
methodName,
implicitThis,
samePackages(receiver.getType().getPackageName(), classNode.getPackageName()))) return;
if (makeGetPropertyWithGetter(receiver, receiver.getType(), methodName, safe, implicitThis))
return;
if (makeGetPrivateFieldWithBridgeMethod(
receiver, receiver.getType(), methodName, safe, implicitThis)) return;
}
if (isClassReceiver) {
// we are probably looking for a property of the class
if (makeGetPropertyWithGetter(receiver, CLASS_Type, methodName, safe, implicitThis)) return;
if (makeGetField(receiver, CLASS_Type, methodName, false, true)) return;
}
if (makeGetPrivateFieldWithBridgeMethod(receiver, receiverType, methodName, safe, implicitThis))
return;
// GROOVY-5580, it is still possible that we're calling a superinterface property
String getterName = "get" + MetaClassHelper.capitalize(methodName);
if (receiverType.isInterface()) {
Set<ClassNode> allInterfaces = receiverType.getAllInterfaces();
MethodNode getterMethod = null;
for (ClassNode anInterface : allInterfaces) {
getterMethod = anInterface.getGetterMethod(getterName);
if (getterMethod != null) break;
}
// GROOVY-5585
if (getterMethod == null) {
getterMethod = OBJECT_TYPE.getGetterMethod(getterName);
}
if (getterMethod != null) {
MethodCallExpression call =
new MethodCallExpression(receiver, getterName, ArgumentListExpression.EMPTY_ARGUMENTS);
call.setMethodTarget(getterMethod);
call.setImplicitThis(false);
call.setSourcePosition(receiver);
call.visit(controller.getAcg());
return;
}
}
// GROOVY-5568, we would be facing a DGM call, but instead of foo.getText(), have foo.text
List<MethodNode> methods =
findDGMMethodsByNameAndArguments(
controller.getSourceUnit().getClassLoader(),
receiverType,
getterName,
ClassNode.EMPTY_ARRAY);
if (!methods.isEmpty()) {
List<MethodNode> methodNodes = chooseBestMethod(receiverType, methods, ClassNode.EMPTY_ARRAY);
if (methodNodes.size() == 1) {
MethodNode getter = methodNodes.get(0);
MethodCallExpression call =
new MethodCallExpression(receiver, getterName, ArgumentListExpression.EMPTY_ARGUMENTS);
call.setMethodTarget(getter);
call.setImplicitThis(false);
call.setSourcePosition(receiver);
call.visit(controller.getAcg());
return;
}
}
boolean isStaticProperty =
receiver instanceof ClassExpression
&& (receiverType.isDerivedFrom(receiver.getType())
|| receiverType.implementsInterface(receiver.getType()));
if (!isStaticProperty) {
if (receiverType.implementsInterface(MAP_TYPE) || MAP_TYPE.equals(receiverType)) {
// for maps, replace map.foo with map.get('foo')
writeMapDotProperty(receiver, methodName, mv, safe);
return;
}
if (receiverType.implementsInterface(LIST_TYPE) || LIST_TYPE.equals(receiverType)) {
writeListDotProperty(receiver, methodName, mv, safe);
return;
}
}
controller
.getSourceUnit()
.addError(
new SyntaxException(
"Access to "
+ (receiver instanceof ClassExpression ? receiver.getType() : receiverType)
.toString(false)
+ "#"
+ methodName
+ " is forbidden",
receiver.getLineNumber(),
receiver.getColumnNumber(),
receiver.getLastLineNumber(),
receiver.getLastColumnNumber()));
controller.getMethodVisitor().visitInsn(ACONST_NULL);
controller.getOperandStack().push(OBJECT_TYPE);
}
private boolean trySubscript(
final Expression receiver,
final String message,
final Expression arguments,
ClassNode rType,
final ClassNode aType) {
if (getWrapper(rType).isDerivedFrom(Number_TYPE)
&& getWrapper(aType).isDerivedFrom(Number_TYPE)) {
if ("plus".equals(message)
|| "minus".equals(message)
|| "multiply".equals(message)
|| "div".equals(message)) {
writeNumberNumberCall(receiver, message, arguments);
return true;
} else if ("power".equals(message)) {
writePowerCall(receiver, arguments, rType, aType);
return true;
} else if ("mod".equals(message)) {
writeModCall(receiver, arguments, rType, aType);
return true;
}
} else if (STRING_TYPE.equals(rType) && "plus".equals(message)) {
writeStringPlusCall(receiver, message, arguments);
return true;
} else if ("getAt".equals(message)) {
if (rType.isArray() && getWrapper(aType).isDerivedFrom(Number_TYPE)) {
writeArrayGet(receiver, arguments, rType, aType);
return true;
} else {
// check if a getAt method can be found on the receiver
ClassNode current = rType;
MethodNode getAtNode = null;
while (current != null && getAtNode == null) {
getAtNode = current.getMethod("getAt", new Parameter[] {new Parameter(aType, "index")});
if (getAtNode == null && isPrimitiveType(aType)) {
getAtNode =
current.getMethod(
"getAt", new Parameter[] {new Parameter(getWrapper(aType), "index")});
} else if (getAtNode == null && aType.isDerivedFrom(Number_TYPE)) {
getAtNode =
current.getMethod(
"getAt", new Parameter[] {new Parameter(getUnwrapper(aType), "index")});
}
current = current.getSuperClass();
}
if (getAtNode != null) {
MethodCallExpression call = new MethodCallExpression(receiver, "getAt", arguments);
call.setSourcePosition(arguments);
call.setImplicitThis(false);
call.setMethodTarget(getAtNode);
call.visit(controller.getAcg());
return true;
}
// make sure Map#getAt() and List#getAt handled with the bracket syntax are properly
// compiled
ClassNode[] args = {aType};
boolean acceptAnyMethod =
MAP_TYPE.equals(rType)
|| rType.implementsInterface(MAP_TYPE)
|| LIST_TYPE.equals(rType)
|| rType.implementsInterface(LIST_TYPE);
List<MethodNode> nodes =
StaticTypeCheckingSupport.findDGMMethodsByNameAndArguments(
controller.getSourceUnit().getClassLoader(), rType, message, args);
if (nodes.isEmpty()) {
// retry with raw types
rType = rType.getPlainNodeReference();
nodes =
StaticTypeCheckingSupport.findDGMMethodsByNameAndArguments(
controller.getSourceUnit().getClassLoader(), rType, message, args);
}
nodes = StaticTypeCheckingSupport.chooseBestMethod(rType, nodes, args);
if (nodes.size() == 1 || nodes.size() > 1 && acceptAnyMethod) {
MethodNode methodNode = nodes.get(0);
MethodCallExpression call = new MethodCallExpression(receiver, message, arguments);
call.setSourcePosition(arguments);
call.setImplicitThis(false);
call.setMethodTarget(methodNode);
call.visit(controller.getAcg());
return true;
}
if (implementsInterfaceOrIsSubclassOf(rType, MAP_TYPE)) {
// fallback to Map#get
MethodCallExpression call = new MethodCallExpression(receiver, "get", arguments);
call.setMethodTarget(MAP_GET_METHOD);
call.setSourcePosition(arguments);
call.setImplicitThis(false);
call.visit(controller.getAcg());
return true;
}
}
}
return false;
}
private boolean makeGetPropertyWithGetter(
final Expression receiver,
final ClassNode receiverType,
final String methodName,
final boolean safe,
final boolean implicitThis) {
// does a getter exists ?
String getterName = "get" + MetaClassHelper.capitalize(methodName);
MethodNode getterNode = receiverType.getGetterMethod(getterName);
if (getterNode == null) {
getterName = "is" + MetaClassHelper.capitalize(methodName);
getterNode = receiverType.getGetterMethod(getterName);
}
if (getterNode != null
&& receiver instanceof ClassExpression
&& !CLASS_Type.equals(receiverType)
&& !getterNode.isStatic()) {
return false;
}
// GROOVY-5561: if two files are compiled in the same source unit
// and that one references the other, the getters for properties have not been
// generated by the compiler yet (generated by the Verifier)
PropertyNode propertyNode = receiverType.getProperty(methodName);
if (propertyNode != null) {
// it is possible to use a getter
String prefix = "get";
if (boolean_TYPE.equals(propertyNode.getOriginType())) {
prefix = "is";
}
getterName = prefix + MetaClassHelper.capitalize(methodName);
getterNode =
new MethodNode(
getterName,
ACC_PUBLIC,
propertyNode.getOriginType(),
Parameter.EMPTY_ARRAY,
ClassNode.EMPTY_ARRAY,
EmptyStatement.INSTANCE);
getterNode.setDeclaringClass(receiverType);
if (propertyNode.isStatic()) getterNode.setModifiers(ACC_PUBLIC + ACC_STATIC);
}
if (getterNode != null) {
MethodCallExpression call =
new MethodCallExpression(receiver, getterName, ArgumentListExpression.EMPTY_ARGUMENTS);
call.setSourcePosition(receiver);
call.setMethodTarget(getterNode);
call.setImplicitThis(implicitThis);
call.setSafe(safe);
call.visit(controller.getAcg());
return true;
}
if (receiverType instanceof InnerClassNode && !receiverType.isStaticClass()) {
if (makeGetPropertyWithGetter(
receiver, receiverType.getOuterClass(), methodName, safe, implicitThis)) {
return true;
}
}
// go upper level
ClassNode superClass = receiverType.getSuperClass();
if (superClass != null) {
return makeGetPropertyWithGetter(receiver, superClass, methodName, safe, implicitThis);
}
return false;
}
@Override
public void makeGroovyObjectGetPropertySite(
final Expression receiver,
final String methodName,
final boolean safe,
final boolean implicitThis) {
TypeChooser typeChooser = controller.getTypeChooser();
ClassNode classNode = controller.getClassNode();
ClassNode receiverType = typeChooser.resolveType(receiver, classNode);
if (receiver instanceof VariableExpression
&& ((VariableExpression) receiver).isThisExpression()
&& !controller.isInClosure()) {
receiverType = classNode;
}
String property = methodName;
if (implicitThis) {
if (controller.getInvocationWriter() instanceof StaticInvocationWriter) {
MethodCallExpression currentCall =
((StaticInvocationWriter) controller.getInvocationWriter()).getCurrentCall();
if (currentCall != null
&& currentCall.getNodeMetaData(StaticTypesMarker.IMPLICIT_RECEIVER) != null) {
property = (String) currentCall.getNodeMetaData(StaticTypesMarker.IMPLICIT_RECEIVER);
String[] props = property.split("\\.");
BytecodeExpression thisLoader =
new BytecodeExpression() {
@Override
public void visit(final MethodVisitor mv) {
mv.visitVarInsn(ALOAD, 0); // load this
}
};
thisLoader.setType(CLOSURE_TYPE);
Expression pexp =
new PropertyExpression(thisLoader, new ConstantExpression(props[0]), safe);
for (int i = 1, propsLength = props.length; i < propsLength; i++) {
final String prop = props[i];
pexp.putNodeMetaData(StaticTypesMarker.INFERRED_TYPE, CLOSURE_TYPE);
pexp = new PropertyExpression(pexp, prop);
}
pexp.visit(controller.getAcg());
return;
}
}
}
if (makeGetPropertyWithGetter(receiver, receiverType, property, safe, implicitThis)) return;
if (makeGetField(
receiver,
receiverType,
property,
implicitThis,
samePackages(receiverType.getPackageName(), classNode.getPackageName()))) return;
MethodCallExpression call =
new MethodCallExpression(
receiver, "getProperty", new ArgumentListExpression(new ConstantExpression(property)));
call.setImplicitThis(implicitThis);
call.setSafe(safe);
call.setMethodTarget(GROOVYOBJECT_GETPROPERTY_METHOD);
call.visit(controller.getAcg());
return;
}
protected Expression transformMethodCallExpression(MethodCallExpression mce) {
Expression args = transform(mce.getArguments());
Expression method = transform(mce.getMethod());
Expression object = transform(mce.getObjectExpression());
boolean isExplicitThisOrSuper = false;
boolean isExplicitSuper = false;
if (object instanceof VariableExpression) {
VariableExpression ve = (VariableExpression) object;
isExplicitThisOrSuper =
!mce.isImplicitThis() && (ve.isThisExpression() || ve.isSuperExpression());
isExplicitSuper = ve.isSuperExpression();
}
if (mce.isImplicitThis() || isExplicitThisOrSuper) {
if (mce.isImplicitThis()) {
Expression ret = findStaticMethodImportFromModule(method, args);
if (ret != null) {
setSourcePosition(ret, mce);
return ret;
}
if (method instanceof ConstantExpression && !inLeftExpression) {
// could be a closure field
String methodName = (String) ((ConstantExpression) method).getValue();
ret = findStaticFieldOrPropAccessorImportFromModule(methodName);
if (ret != null) {
ret = new MethodCallExpression(ret, "call", args);
setSourcePosition(ret, mce);
return ret;
}
}
} else if (currentMethod != null && currentMethod.isStatic() && isExplicitSuper) {
MethodCallExpression ret =
new MethodCallExpression(
new ClassExpression(currentClass.getSuperClass()), method, args);
setSourcePosition(ret, mce);
return ret;
}
if (method instanceof ConstantExpression) {
ConstantExpression ce = (ConstantExpression) method;
Object value = ce.getValue();
if (value instanceof String) {
String methodName = (String) value;
boolean lookForPossibleStaticMethod = !methodName.equals("call");
if (currentMethod != null && !currentMethod.isStatic()) {
if (currentClass.hasPossibleMethod(methodName, args)) {
lookForPossibleStaticMethod = false;
}
}
if (!inClosure
&& (inSpecialConstructorCall
|| (lookForPossibleStaticMethod
&& currentClass.hasPossibleStaticMethod(methodName, args)))) {
StaticMethodCallExpression smce =
new StaticMethodCallExpression(currentClass, methodName, args);
setSourcePosition(smce, mce);
return smce;
}
}
}
}
MethodCallExpression result = new MethodCallExpression(object, method, args);
result.setSafe(mce.isSafe());
result.setImplicitThis(mce.isImplicitThis());
result.setSpreadSafe(mce.isSpreadSafe());
result.setMethodTarget(mce.getMethodTarget());
// GROOVY-6757
result.setGenericsTypes(mce.getGenericsTypes());
setSourcePosition(result, mce);
return result;
}
protected Expression transformMethodCallExpression(MethodCallExpression mce) {
Expression args = transform(mce.getArguments());
Expression method = transform(mce.getMethod());
Expression object = transform(mce.getObjectExpression());
boolean isExplicitThisOrSuper = false;
if (object instanceof VariableExpression) {
VariableExpression ve = (VariableExpression) object;
isExplicitThisOrSuper =
!mce.isImplicitThis() && (ve.getName().equals("this") || ve.getName().equals("super"));
}
if (mce.isImplicitThis() || isExplicitThisOrSuper) {
if (mce.isImplicitThis()) {
Expression ret = findStaticMethodImportFromModule(method, args);
if (ret != null) {
// GRECLIPSE add
if (!((StaticMethodCallExpression) ret).getMethod().equals(method.getText())) {
// store the identifier to facilitate organizing static imports
ret.setNodeMetaData("static.import.alias", method.getText());
}
// GRECLIPSE end
setSourcePosition(ret, mce);
return ret;
}
if (method instanceof ConstantExpression && !inLeftExpression) {
// could be a closure field
String methodName = (String) ((ConstantExpression) method).getValue();
ret = findStaticFieldOrPropAccessorImportFromModule(methodName);
if (ret != null) {
ret = new MethodCallExpression(ret, "call", args);
setSourcePosition(ret, mce);
return ret;
}
}
}
if (method instanceof ConstantExpression) {
ConstantExpression ce = (ConstantExpression) method;
Object value = ce.getValue();
if (value instanceof String) {
String methodName = (String) value;
boolean lookForPossibleStaticMethod = !methodName.equals("call");
if (currentMethod != null && !currentMethod.isStatic()) {
if (currentClass.hasPossibleMethod(methodName, args)) {
lookForPossibleStaticMethod = false;
}
}
if (inSpecialConstructorCall
|| (lookForPossibleStaticMethod
&& currentClass.hasPossibleStaticMethod(methodName, args))) {
StaticMethodCallExpression smce =
new StaticMethodCallExpression(currentClass, methodName, args);
setSourcePosition(smce, mce);
return smce;
}
}
}
}
MethodCallExpression result = new MethodCallExpression(object, method, args);
result.setSafe(mce.isSafe());
result.setImplicitThis(mce.isImplicitThis());
result.setSpreadSafe(mce.isSpreadSafe());
result.setMethodTarget(mce.getMethodTarget());
// GROOVY-6757
result.setGenericsTypes(mce.getGenericsTypes());
setSourcePosition(result, mce);
return result;
}
Expression transformBinaryExpression(final BinaryExpression bin) {
if (bin instanceof DeclarationExpression) {
Expression optimized = transformDeclarationExpression(bin);
if (optimized != null) {
return optimized;
}
}
Object[] list = bin.getNodeMetaData(BINARY_EXP_TARGET);
Token operation = bin.getOperation();
int operationType = operation.getType();
Expression rightExpression = bin.getRightExpression();
Expression leftExpression = bin.getLeftExpression();
if (bin instanceof DeclarationExpression && leftExpression instanceof VariableExpression) {
ClassNode declarationType = ((VariableExpression) leftExpression).getOriginType();
if (rightExpression instanceof ConstantExpression) {
ClassNode unwrapper = ClassHelper.getUnwrapper(declarationType);
ClassNode wrapper = ClassHelper.getWrapper(declarationType);
if (!rightExpression.getType().equals(declarationType)
&& wrapper.isDerivedFrom(ClassHelper.Number_TYPE)
&& WideningCategories.isDoubleCategory(unwrapper)) {
ConstantExpression constant = (ConstantExpression) rightExpression;
if (constant.getValue() != null) {
return optimizeConstantInitialization(
bin, operation, constant, leftExpression, declarationType);
}
}
}
}
if (operationType == Types.EQUAL && leftExpression instanceof PropertyExpression) {
MethodNode directMCT =
leftExpression.getNodeMetaData(StaticTypesMarker.DIRECT_METHOD_CALL_TARGET);
if (directMCT != null) {
return transformPropertyAssignmentToSetterCall(
(PropertyExpression) leftExpression, rightExpression, directMCT);
}
}
if (operationType == Types.COMPARE_EQUAL || operationType == Types.COMPARE_NOT_EQUAL) {
// let's check if one of the operands is the null constant
CompareToNullExpression compareToNullExpression = null;
if (isNullConstant(leftExpression)) {
compareToNullExpression =
new CompareToNullExpression(
staticCompilationTransformer.transform(rightExpression),
operationType == Types.COMPARE_EQUAL);
} else if (isNullConstant(rightExpression)) {
compareToNullExpression =
new CompareToNullExpression(
staticCompilationTransformer.transform(leftExpression),
operationType == Types.COMPARE_EQUAL);
}
if (compareToNullExpression != null) {
compareToNullExpression.setSourcePosition(bin);
return compareToNullExpression;
}
} else if (operationType == Types.KEYWORD_IN) {
return convertInOperatorToTernary(bin, rightExpression, leftExpression);
}
if (list != null) {
if (operationType == Types.COMPARE_TO) {
StaticTypesTypeChooser typeChooser = staticCompilationTransformer.getTypeChooser();
ClassNode classNode = staticCompilationTransformer.getClassNode();
ClassNode leftType = typeChooser.resolveType(leftExpression, classNode);
if (leftType.implementsInterface(ClassHelper.COMPARABLE_TYPE)) {
ClassNode rightType = typeChooser.resolveType(rightExpression, classNode);
if (rightType.implementsInterface(ClassHelper.COMPARABLE_TYPE)) {
Expression left = staticCompilationTransformer.transform(leftExpression);
Expression right = staticCompilationTransformer.transform(rightExpression);
MethodCallExpression call =
new MethodCallExpression(left, "compareTo", new ArgumentListExpression(right));
call.setImplicitThis(false);
call.setMethodTarget(COMPARE_TO_METHOD);
CompareIdentityExpression compareIdentity = new CompareIdentityExpression(left, right);
compareIdentity.putNodeMetaData(
StaticTypesMarker.INFERRED_RETURN_TYPE, ClassHelper.boolean_TYPE);
TernaryExpression result =
new TernaryExpression(
new BooleanExpression(compareIdentity), // a==b
CONSTANT_ZERO,
new TernaryExpression(
new BooleanExpression(new CompareToNullExpression(left, true)), // a==null
CONSTANT_MINUS_ONE,
new TernaryExpression(
new BooleanExpression(
new CompareToNullExpression(right, true)), // b==null
CONSTANT_ONE,
call)));
compareIdentity.putNodeMetaData(
StaticTypesMarker.INFERRED_RETURN_TYPE, ClassHelper.int_TYPE);
result.putNodeMetaData(StaticTypesMarker.INFERRED_TYPE, ClassHelper.int_TYPE);
TernaryExpression expr = (TernaryExpression) result.getFalseExpression();
expr.putNodeMetaData(StaticTypesMarker.INFERRED_TYPE, ClassHelper.int_TYPE);
expr.getFalseExpression()
.putNodeMetaData(StaticTypesMarker.INFERRED_TYPE, ClassHelper.int_TYPE);
return result;
}
}
}
boolean isAssignment = StaticTypeCheckingSupport.isAssignment(operationType);
MethodCallExpression call;
MethodNode node = (MethodNode) list[0];
String name = (String) list[1];
Expression left = staticCompilationTransformer.transform(leftExpression);
Expression right = staticCompilationTransformer.transform(rightExpression);
BinaryExpression optimized = tryOptimizeCharComparison(left, right, bin);
if (optimized != null) {
optimized.removeNodeMetaData(BINARY_EXP_TARGET);
return transformBinaryExpression(optimized);
}
call = new MethodCallExpression(left, name, new ArgumentListExpression(right));
call.setImplicitThis(false);
call.setMethodTarget(node);
MethodNode adapter = StaticCompilationTransformer.BYTECODE_BINARY_ADAPTERS.get(operationType);
if (adapter != null) {
ClassExpression sba =
new ClassExpression(StaticCompilationTransformer.BYTECODE_ADAPTER_CLASS);
// replace with compareEquals
call =
new MethodCallExpression(sba, "compareEquals", new ArgumentListExpression(left, right));
call.setMethodTarget(adapter);
call.setImplicitThis(false);
}
if (!isAssignment) return call;
// case of +=, -=, /=, ...
// the method represents the operation type only, and we must add an assignment
return new BinaryExpression(
left, Token.newSymbol("=", operation.getStartLine(), operation.getStartColumn()), call);
}
if (bin.getOperation().getType() == Types.EQUAL
&& leftExpression instanceof TupleExpression
&& rightExpression instanceof ListExpression) {
// multiple assignment
ListOfExpressionsExpression cle = new ListOfExpressionsExpression();
boolean isDeclaration = bin instanceof DeclarationExpression;
List<Expression> leftExpressions = ((TupleExpression) leftExpression).getExpressions();
List<Expression> rightExpressions = ((ListExpression) rightExpression).getExpressions();
Iterator<Expression> leftIt = leftExpressions.iterator();
Iterator<Expression> rightIt = rightExpressions.iterator();
if (isDeclaration) {
while (leftIt.hasNext()) {
Expression left = leftIt.next();
if (rightIt.hasNext()) {
Expression right = rightIt.next();
BinaryExpression bexp = new DeclarationExpression(left, bin.getOperation(), right);
bexp.setSourcePosition(right);
cle.addExpression(bexp);
}
}
} else {
// (next, result) = [ result, next+result ]
// -->
// def tmp1 = result
// def tmp2 = next+result
// next = tmp1
// result = tmp2
int size = rightExpressions.size();
List<Expression> tmpAssignments = new ArrayList<Expression>(size);
List<Expression> finalAssignments = new ArrayList<Expression>(size);
for (int i = 0; i < Math.min(size, leftExpressions.size()); i++) {
Expression left = leftIt.next();
Expression right = rightIt.next();
VariableExpression tmpVar = new VariableExpression("$tmpVar$" + tmpVarCounter++);
BinaryExpression bexp = new DeclarationExpression(tmpVar, bin.getOperation(), right);
bexp.setSourcePosition(right);
tmpAssignments.add(bexp);
bexp = new BinaryExpression(left, bin.getOperation(), new VariableExpression(tmpVar));
bexp.setSourcePosition(left);
finalAssignments.add(bexp);
}
for (Expression tmpAssignment : tmpAssignments) {
cle.addExpression(tmpAssignment);
}
for (Expression finalAssignment : finalAssignments) {
cle.addExpression(finalAssignment);
}
}
return staticCompilationTransformer.transform(cle);
}
return staticCompilationTransformer.superTransform(bin);
}