text: // @flow strict
  
  import inspect from '../jsutils/inspect';
  import invariant from '../jsutils/invariant';
  import keyValMap from '../jsutils/keyValMap';
  import { type ObjMap } from '../jsutils/ObjMap';
  
  import { Kind } from '../language/kinds';
  import { type ValueNode } from '../language/ast';
  
  /**
   * Produces a JavaScript value given a GraphQL Value AST.
   *
   * Unlike `valueFromAST()`, no type is provided. The resulting JavaScript value
   * will reflect the provided GraphQL value AST.
   *
   * | GraphQL Value        | JavaScript Value |
   * | -------------------- | ---------------- |
   * | Input Object         | Object           |
   * | List                 | Array            |
   * | Boolean              | Boolean          |
   * | String / Enum        | String           |
   * | Int / Float          | Number           |
   * | Null                 | null             |
   *
   */
  export function valueFromASTUntyped(
    valueNode: ValueNode,
    variables?: ?ObjMap<mixed>,
  ): mixed {
    switch (valueNode.kind) {
      case Kind.NULL:
        return null;
      case Kind.INT:
        return parseInt(valueNode.value, 10);
      case Kind.FLOAT:
        return parseFloat(valueNode.value);
      case Kind.STRING:
      case Kind.ENUM:
      case Kind.BOOLEAN:
        return valueNode.value;
      case Kind.LIST:
        return valueNode.values.map((node) =>
          valueFromASTUntyped(node, variables),
        );
      case Kind.OBJECT:
        return keyValMap(
          valueNode.fields,
          (field) => field.name.value,
          (field) => valueFromASTUntyped(field.value, variables),
        );
      case Kind.VARIABLE:
        return variables?.[valueNode.name.value];
    }
  
    // Not reachable. All possible value nodes have been considered.
    invariant(false, 'Unexpected value node: ' + inspect((valueNode: empty)));
  }
  