public Type asType(boolean nullable, com.google.dart.compiler.type.Type type) {
switch (type.getKind()) {
case VOID:
return CoreTypeRepository.VOID_TYPE;
case DYNAMIC:
return nullable
? CoreTypeRepository.DYNAMIC_TYPE
: CoreTypeRepository.DYNAMIC_NON_NULL_TYPE;
case VARIABLE:
// return typeRepository.findType(nullable, (ClassElement)
// type.getElement());
if (!(type.getElement() instanceof ClassElement)) {
return DYNAMIC_NON_NULL_TYPE;
}
case INTERFACE:
return typeRepository.findType(nullable, (ClassElement) type.getElement());
case FUNCTION:
return asFunctionType(nullable, (com.google.dart.compiler.type.FunctionType) type);
case FUNCTION_ALIAS:
return asFunctionType(nullable, ((FunctionAliasType) type).getElement().getFunctionType());
case NONE:
default:
throw new AssertionError("asType: " + type.getKind() + " must be implemented");
}
}
/** @return js The expression used to lookup the RTT for the given type. */
private JsExpression buildTypeLookupExpression(
Type type, List<? extends Type> list, JsExpression contextTypeArgs) {
switch (TypeKind.of(type)) {
case INTERFACE:
InterfaceType interfaceType = (InterfaceType) type;
JsInvocation callLookup = call(null, getRTTLookupMethodName(interfaceType.getElement()));
if (hasTypeParameters(interfaceType.getElement()) && !interfaceType.hasDynamicTypeArgs()) {
JsArrayLiteral typeArgs = new JsArrayLiteral();
for (Type arg : interfaceType.getArguments()) {
typeArgs.getExpressions().add(buildTypeLookupExpression(arg, list, contextTypeArgs));
}
callLookup.getArguments().add(typeArgs);
}
return callLookup;
case FUNCTION_ALIAS:
// TODO(johnlenz): implement this
return newQualifiedNameRef("RTT.placeholderType");
case VARIABLE:
TypeVariable var = (TypeVariable) type;
JsProgram program = translationContext.getProgram();
int varIndex = 0;
for (Type t : list) {
if (t.equals(type)) {
return call(
null,
newQualifiedNameRef("RTT.getTypeArg"),
Cloner.clone(contextTypeArgs),
program.getNumberLiteral(varIndex));
}
varIndex++;
}
throw new AssertionError("unresolved type variable:" + var);
default:
throw new AssertionError("unexpected type kind:" + type.getKind());
}
}