Function hasBaseType

test/fixtures/snapshot/typescript.js:56935–56947

(type, checkBase)

        }
        // TODO: GH#18217 If `checkBase` is undefined, we should not call this because this will always return false.
        function hasBaseType(type, checkBase) {
            return check(type);
            function check(type) {
                if (ts.getObjectFlags(type) & (3 /* ObjectFlags.ClassOrInterface */ | 4 /* ObjectFlags.Reference */)) {
                    var target = getTargetType(type);
                    return target === checkBase || ts.some(getBaseTypes(target), check);
                }
                else if (type.flags & 2097152 /* TypeFlags.Intersection */) {
                    return ts.some(type.types, check);
                }
                return false;
            }
        }
        // Appends the type parameters given by a list of declarations to a set of type parameters and returns the resulting set.
        // The function allocates a new array if the input type parameter set is undefined, but otherwise it modifies the set
        // in-place and returns the same array.