Function getIndexInfosOfIndexSymbol

test/fixtures/snapshot/typescript.js:60036–60058

(indexSymbol)

            return indexSymbol ? getIndexInfosOfIndexSymbol(indexSymbol) : ts.emptyArray;
        }
        function getIndexInfosOfIndexSymbol(indexSymbol) {
            if (indexSymbol.declarations) {
                var indexInfos_4 = [];
                var _loop_14 = function (declaration) {
                    if (declaration.parameters.length === 1) {
                        var parameter = declaration.parameters[0];
                        if (parameter.type) {
                            forEachType(getTypeFromTypeNode(parameter.type), function (keyType) {
                                if (isValidIndexKeyType(keyType) && !findIndexInfo(indexInfos_4, keyType)) {
                                    indexInfos_4.push(createIndexInfo(keyType, declaration.type ? getTypeFromTypeNode(declaration.type) : anyType, ts.hasEffectiveModifier(declaration, 64 /* ModifierFlags.Readonly */), declaration));
                                }
                            });
                        }
                    }
                };
                for (var _i = 0, _a = indexSymbol.declarations; _i < _a.length; _i++) {
                    var declaration = _a[_i];
                    _loop_14(declaration);
                }
                return indexInfos_4;
            }
            return ts.emptyArray;
        }
        function isValidIndexKeyType(type) {
            return !!(type.flags & (4 /* TypeFlags.String */ | 8 /* TypeFlags.Number */ | 4096 /* TypeFlags.ESSymbol */)) || isPatternLiteralType(type) ||
                !!(type.flags & 2097152 /* TypeFlags.Intersection */) && !isGenericType(type) && ts.some(type.types, isValidIndexKeyType);