Function resolveBaseTypesOfInterface

test/fixtures/snapshot/typescript.js:57284–57315

(type)

                type.flags & 2097152 /* TypeFlags.Intersection */ && ts.every(type.types, isValidBaseType));
        }
        function resolveBaseTypesOfInterface(type) {
            type.resolvedBaseTypes = type.resolvedBaseTypes || ts.emptyArray;
            if (type.symbol.declarations) {
                for (var _i = 0, _a = type.symbol.declarations; _i < _a.length; _i++) {
                    var declaration = _a[_i];
                    if (declaration.kind === 258 /* SyntaxKind.InterfaceDeclaration */ && ts.getInterfaceBaseTypeNodes(declaration)) {
                        for (var _b = 0, _c = ts.getInterfaceBaseTypeNodes(declaration); _b < _c.length; _b++) {
                            var node = _c[_b];
                            var baseType = getReducedType(getTypeFromTypeNode(node));
                            if (!isErrorType(baseType)) {
                                if (isValidBaseType(baseType)) {
                                    if (type !== baseType && !hasBaseType(baseType, type)) {
                                        if (type.resolvedBaseTypes === ts.emptyArray) {
                                            type.resolvedBaseTypes = [baseType];
                                        }
                                        else {
                                            type.resolvedBaseTypes.push(baseType);
                                        }
                                    }
                                    else {
                                        reportCircularBaseType(declaration, type);
                                    }
                                }
                                else {
                                    error(node, ts.Diagnostics.An_interface_can_only_extend_an_object_type_or_intersection_of_object_types_with_statically_known_members);
                                }
                            }
                        }
                    }
                }
            }
        }
        /**
         * Returns true if the interface given by the symbol is free of "this" references.
         *