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+import isFinite from "../polyfills/isFinite.mjs";
+import objectValues from "../polyfills/objectValues.mjs";
+import inspect from "../jsutils/inspect.mjs";
+import invariant from "../jsutils/invariant.mjs";
+import isObjectLike from "../jsutils/isObjectLike.mjs";
+import safeArrayFrom from "../jsutils/safeArrayFrom.mjs";
+import { Kind } from "../language/kinds.mjs";
+import { GraphQLID } from "../type/scalars.mjs";
+import { isLeafType, isEnumType, isInputObjectType, isListType, isNonNullType } from "../type/definition.mjs";
+/**
+ * Produces a GraphQL Value AST given a JavaScript object.
+ * Function will match JavaScript/JSON values to GraphQL AST schema format
+ * by using suggested GraphQLInputType. For example:
+ *
+ * astFromValue("value", GraphQLString)
+ *
+ * A GraphQL type must be provided, which will be used to interpret different
+ * JavaScript values.
+ *
+ * | JSON Value | GraphQL Value |
+ * | ------------- | -------------------- |
+ * | Object | Input Object |
+ * | Array | List |
+ * | Boolean | Boolean |
+ * | String | String / Enum Value |
+ * | Number | Int / Float |
+ * | Mixed | Enum Value |
+ * | null | NullValue |
+ *
+ */
+
+export function astFromValue(value, type) {
+ if (isNonNullType(type)) {
+ var astValue = astFromValue(value, type.ofType);
+
+ if ((astValue === null || astValue === void 0 ? void 0 : astValue.kind) === Kind.NULL) {
+ return null;
+ }
+
+ return astValue;
+ } // only explicit null, not undefined, NaN
+
+
+ if (value === null) {
+ return {
+ kind: Kind.NULL
+ };
+ } // undefined
+
+
+ if (value === undefined) {
+ return null;
+ } // Convert JavaScript array to GraphQL list. If the GraphQLType is a list, but
+ // the value is not an array, convert the value using the list's item type.
+
+
+ if (isListType(type)) {
+ var itemType = type.ofType;
+ var items = safeArrayFrom(value);
+
+ if (items != null) {
+ var valuesNodes = [];
+
+ for (var _i2 = 0; _i2 < items.length; _i2++) {
+ var item = items[_i2];
+ var itemNode = astFromValue(item, itemType);
+
+ if (itemNode != null) {
+ valuesNodes.push(itemNode);
+ }
+ }
+
+ return {
+ kind: Kind.LIST,
+ values: valuesNodes
+ };
+ }
+
+ return astFromValue(value, itemType);
+ } // Populate the fields of the input object by creating ASTs from each value
+ // in the JavaScript object according to the fields in the input type.
+
+
+ if (isInputObjectType(type)) {
+ if (!isObjectLike(value)) {
+ return null;
+ }
+
+ var fieldNodes = [];
+
+ for (var _i4 = 0, _objectValues2 = objectValues(type.getFields()); _i4 < _objectValues2.length; _i4++) {
+ var field = _objectValues2[_i4];
+ var fieldValue = astFromValue(value[field.name], field.type);
+
+ if (fieldValue) {
+ fieldNodes.push({
+ kind: Kind.OBJECT_FIELD,
+ name: {
+ kind: Kind.NAME,
+ value: field.name
+ },
+ value: fieldValue
+ });
+ }
+ }
+
+ return {
+ kind: Kind.OBJECT,
+ fields: fieldNodes
+ };
+ } // istanbul ignore else (See: 'https://github.com/graphql/graphql-js/issues/2618')
+
+
+ if (isLeafType(type)) {
+ // Since value is an internally represented value, it must be serialized
+ // to an externally represented value before converting into an AST.
+ var serialized = type.serialize(value);
+
+ if (serialized == null) {
+ return null;
+ } // Others serialize based on their corresponding JavaScript scalar types.
+
+
+ if (typeof serialized === 'boolean') {
+ return {
+ kind: Kind.BOOLEAN,
+ value: serialized
+ };
+ } // JavaScript numbers can be Int or Float values.
+
+
+ if (typeof serialized === 'number' && isFinite(serialized)) {
+ var stringNum = String(serialized);
+ return integerStringRegExp.test(stringNum) ? {
+ kind: Kind.INT,
+ value: stringNum
+ } : {
+ kind: Kind.FLOAT,
+ value: stringNum
+ };
+ }
+
+ if (typeof serialized === 'string') {
+ // Enum types use Enum literals.
+ if (isEnumType(type)) {
+ return {
+ kind: Kind.ENUM,
+ value: serialized
+ };
+ } // ID types can use Int literals.
+
+
+ if (type === GraphQLID && integerStringRegExp.test(serialized)) {
+ return {
+ kind: Kind.INT,
+ value: serialized
+ };
+ }
+
+ return {
+ kind: Kind.STRING,
+ value: serialized
+ };
+ }
+
+ throw new TypeError("Cannot convert value to AST: ".concat(inspect(serialized), "."));
+ } // istanbul ignore next (Not reachable. All possible input types have been considered)
+
+
+ false || invariant(0, 'Unexpected input type: ' + inspect(type));
+}
+/**
+ * IntValue:
+ * - NegativeSign? 0
+ * - NegativeSign? NonZeroDigit ( Digit+ )?
+ */
+
+var integerStringRegExp = /^-?(?:0|[1-9][0-9]*)$/;