private void checkFinalFieldAccess(Expression expression) {
if (!(expression instanceof VariableExpression) && !(expression instanceof PropertyExpression))
return;
Variable v = null;
if (expression instanceof VariableExpression) {
VariableExpression ve = (VariableExpression) expression;
v = ve.getAccessedVariable();
} else {
PropertyExpression propExp = ((PropertyExpression) expression);
Expression objectExpression = propExp.getObjectExpression();
if (objectExpression instanceof VariableExpression) {
VariableExpression varExp = (VariableExpression) objectExpression;
if (varExp.isThisExpression()) {
v = currentClass.getDeclaredField(propExp.getPropertyAsString());
}
}
}
if (v instanceof FieldNode) {
FieldNode fn = (FieldNode) v;
/*
* if it is static final but not accessed inside a static constructor, or,
* if it is an instance final but not accessed inside a instance constructor, it is an error
*/
boolean isFinal = fn.isFinal();
boolean isStatic = fn.isStatic();
boolean error =
isFinal && ((isStatic && !inStaticConstructor) || (!isStatic && !inConstructor));
if (error)
addError(
"cannot modify"
+ (isStatic ? " static" : "")
+ " final field '"
+ fn.getName()
+ "' outside of "
+ (isStatic ? "static initialization block." : "constructor."),
expression);
}
}
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;
}