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node_modules/graphql/utilities/isValidLiteralValue.js.flow

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+// @flow strict
+
+import { type GraphQLError } from '../error/GraphQLError';
+
+import { Kind } from '../language/kinds';
+import { type ValueNode } from '../language/ast';
+import { visit, visitWithTypeInfo } from '../language/visitor';
+
+import { ValuesOfCorrectType } from '../validation/rules/ValuesOfCorrectType';
+import { ValidationContext } from '../validation/ValidationContext';
+
+import { type GraphQLInputType } from '../type/definition';
+import { GraphQLSchema } from '../type/schema';
+
+import { TypeInfo } from './TypeInfo';
+
+/**
+ * Utility which determines if a value literal node is valid for an input type.
+ *
+ * Deprecated. Rely on validation for documents containing literal values.
+ *
+ * This function will be removed in v15
+ */
+export function isValidLiteralValue(
+  type: GraphQLInputType,
+  valueNode: ValueNode,
+): $ReadOnlyArray<GraphQLError> {
+  const emptySchema = new GraphQLSchema({});
+  const emptyDoc = { kind: Kind.DOCUMENT, definitions: [] };
+  const typeInfo = new TypeInfo(emptySchema, undefined, type);
+  const context = new ValidationContext(emptySchema, emptyDoc, typeInfo);
+  const visitor = ValuesOfCorrectType(context);
+  visit(valueNode, visitWithTypeInfo(typeInfo, visitor));
+  return context.getErrors();
+}