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);
}
Expression transformMethodCallExpression(final MethodCallExpression expr) {
Expression objectExpression = expr.getObjectExpression();
if (expr.isSafe()) {
MethodCallExpression notSafe =
new MethodCallExpression(objectExpression, expr.getMethod(), expr.getArguments());
notSafe.copyNodeMetaData(expr);
notSafe.setSpreadSafe(expr.isSpreadSafe());
notSafe.setSourcePosition(expr);
notSafe.setMethodTarget(expr.getMethodTarget());
TernaryExpression texpr =
new TernaryExpression(
new BooleanExpression(
new BinaryExpression(
objectExpression,
Token.newSymbol(
"!=",
objectExpression.getLineNumber(),
objectExpression.getColumnNumber()),
ConstantExpression.NULL)),
notSafe,
ConstantExpression.NULL);
return staticCompilationTransformer.transform(texpr);
}
ClassNode type =
staticCompilationTransformer
.getTypeChooser()
.resolveType(objectExpression, staticCompilationTransformer.getClassNode());
if (type != null && type.isArray()) {
String method = expr.getMethodAsString();
ClassNode componentType = type.getComponentType();
if ("getAt".equals(method)) {
Expression arguments = expr.getArguments();
if (arguments instanceof TupleExpression) {
List<Expression> argList = ((TupleExpression) arguments).getExpressions();
if (argList.size() == 1) {
Expression indexExpr = argList.get(0);
ClassNode argType =
staticCompilationTransformer
.getTypeChooser()
.resolveType(indexExpr, staticCompilationTransformer.getClassNode());
ClassNode indexType = ClassHelper.getWrapper(argType);
if (componentType.isEnum() && ClassHelper.Number_TYPE == indexType) {
// workaround for generated code in enums which use .next() returning a Number
indexType = ClassHelper.Integer_TYPE;
}
if (argType != null && ClassHelper.Integer_TYPE == indexType) {
BinaryExpression binaryExpression =
new BinaryExpression(
objectExpression,
Token.newSymbol("[", indexExpr.getLineNumber(), indexExpr.getColumnNumber()),
indexExpr);
binaryExpression.putNodeMetaData(StaticTypesMarker.INFERRED_TYPE, componentType);
return staticCompilationTransformer.transform(binaryExpression);
}
}
}
}
if ("putAt".equals(method)) {
Expression arguments = expr.getArguments();
if (arguments instanceof TupleExpression) {
List<Expression> argList = ((TupleExpression) arguments).getExpressions();
if (argList.size() == 2) {
Expression indexExpr = argList.get(0);
Expression objExpr = argList.get(1);
ClassNode argType =
staticCompilationTransformer
.getTypeChooser()
.resolveType(indexExpr, staticCompilationTransformer.getClassNode());
if (argType != null && ClassHelper.Integer_TYPE == ClassHelper.getWrapper(argType)) {
BinaryExpression arrayGet =
new BinaryExpression(
objectExpression,
Token.newSymbol("[", indexExpr.getLineNumber(), indexExpr.getColumnNumber()),
indexExpr);
arrayGet.putNodeMetaData(StaticTypesMarker.INFERRED_TYPE, componentType);
BinaryExpression assignment =
new BinaryExpression(
arrayGet,
Token.newSymbol("=", objExpr.getLineNumber(), objExpr.getColumnNumber()),
objExpr);
return staticCompilationTransformer.transform(assignment);
}
}
}
}
}
return staticCompilationTransformer.superTransform(expr);
}
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;
}
public void visitMethodCallExpression(MethodCallExpression call) {
call.getObjectExpression().visit(this);
call.getMethod().visit(this);
call.getArguments().visit(this);
}
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;
}
public static boolean isMethodOnThis(MethodCallExpression call, String name) {
boolean hasName =
call.getMethod() instanceof ConstantExpression && call.getMethod().getText().equals(name);
return hasName && targetIsThis(call);
}