public DeclaredFunctionType withTypeInfoFromSuper(DeclaredFunctionType superType) {
FunctionTypeBuilder builder = new FunctionTypeBuilder();
int i = 0;
for (JSType formal : requiredFormals) {
builder.addReqFormal(formal != null ? formal : superType.getFormalType(i));
i++;
}
for (JSType formal : optionalFormals) {
builder.addOptFormal(formal != null ? formal : superType.getFormalType(i));
i++;
}
if (restFormals != null) {
builder.addRestFormals(restFormals);
} else if (superType.hasRestFormals()) {
builder.addRestFormals(superType.restFormals);
}
builder.addRetType(returnType != null ? returnType : superType.returnType);
builder.addNominalType(nominalType);
builder.addReceiverType(receiverType);
builder.addTypeParameters(typeParameters);
return builder.buildDeclaration();
}
private static DeclaredFunctionType meet(DeclaredFunctionType f1, DeclaredFunctionType f2) {
if (f1.equals(f2)) {
return f1;
}
FunctionTypeBuilder builder = new FunctionTypeBuilder();
int minRequiredArity = Math.min(f1.requiredFormals.size(), f2.requiredFormals.size());
for (int i = 0; i < minRequiredArity; i++) {
builder.addReqFormal(nullAcceptingJoin(f1.getFormalType(i), f2.getFormalType(i)));
}
int maxTotalArity =
Math.max(
f1.requiredFormals.size() + f1.optionalFormals.size(),
f2.requiredFormals.size() + f2.optionalFormals.size());
for (int i = minRequiredArity; i < maxTotalArity; i++) {
builder.addOptFormal(nullAcceptingJoin(f1.getFormalType(i), f2.getFormalType(i)));
}
if (f1.restFormals != null || f2.restFormals != null) {
builder.addRestFormals(nullAcceptingJoin(f1.restFormals, f2.restFormals));
}
builder.addRetType(nullAcceptingMeet(f1.returnType, f2.returnType));
return builder.buildDeclaration();
}
private DeclaredFunctionType getFunTypeFromTypicalFunctionJsdoc(
JSDocInfo jsdoc,
String functionName,
Node funNode,
RawNominalType constructorType,
RawNominalType ownerType,
DeclaredTypeRegistry registry,
FunctionTypeBuilder builder) {
ImmutableList.Builder<String> typeParamsBuilder = ImmutableList.builder();
ImmutableList<String> typeParameters = ImmutableList.of();
Node parent = funNode.getParent();
// TODO(dimvar): need more @template warnings
// - warn for multiple @template annotations
// - warn for @template annotation w/out usage
boolean ignoreJsdoc = false;
if (jsdoc != null) {
if (constructorType != null) {
// We have created new names for these type variables in GTI, don't
// create new ones here.
typeParamsBuilder.addAll(constructorType.getTypeParameters());
} else {
for (String typeParam : jsdoc.getTemplateTypeNames()) {
typeParamsBuilder.add(this.nameGen.getNextName(typeParam));
}
}
// We don't properly support the type transformation language; we treat
// its type variables as ordinary type variables.
for (String typeParam : jsdoc.getTypeTransformations().keySet()) {
typeParamsBuilder.add(this.nameGen.getNextName(typeParam));
}
typeParameters = typeParamsBuilder.build();
if (!typeParameters.isEmpty()) {
if (parent.isSetterDef() || parent.isGetterDef()) {
ignoreJsdoc = true;
jsdoc = null;
warnings.add(JSError.make(funNode, TEMPLATED_GETTER_SETTER));
} else {
builder.addTypeParameters(typeParameters);
}
}
}
if (ownerType != null) {
typeParamsBuilder.addAll(ownerType.getTypeParameters());
typeParameters = typeParamsBuilder.build();
}
fillInFormalParameterTypes(jsdoc, funNode, typeParameters, registry, builder, ignoreJsdoc);
fillInReturnType(jsdoc, funNode, parent, typeParameters, registry, builder, ignoreJsdoc);
if (jsdoc == null) {
return builder.buildDeclaration();
}
// Look at other annotations, eg, @constructor
NominalType parentClass =
getMaybeParentClass(jsdoc, functionName, funNode, typeParameters, registry);
ImmutableSet<NominalType> implementedIntfs =
getImplementedInterfaces(jsdoc, registry, typeParameters);
if (constructorType == null && jsdoc.isConstructorOrInterface()) {
// Anonymous type, don't register it.
return builder.buildDeclaration();
} else if (jsdoc.isConstructor()) {
handleConstructorAnnotation(
functionName, funNode, constructorType, parentClass, implementedIntfs, registry, builder);
} else if (jsdoc.isInterface()) {
handleInterfaceAnnotation(
jsdoc,
functionName,
funNode,
constructorType,
implementedIntfs,
typeParameters,
registry,
builder);
} else if (!implementedIntfs.isEmpty()) {
warnings.add(JSError.make(funNode, IMPLEMENTS_WITHOUT_CONSTRUCTOR, functionName));
}
if (jsdoc.hasThisType()) {
Node thisRoot = jsdoc.getThisType().getRoot();
Preconditions.checkState(thisRoot.getType() == Token.BANG);
builder.addReceiverType(getThisOrNewType(thisRoot.getFirstChild(), registry, typeParameters));
}
return builder.buildDeclaration();
}