56 lines
1.4 KiB
Plaintext
56 lines
1.4 KiB
Plaintext
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow strict-local
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*/
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// flowlint ambiguous-object-type:error
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'use strict';
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const {createUserError, createCompilerError} = require('../core/CompilerError');
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const {getName} = require('./GraphQLASTUtils');
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import type {ExecutableDefinitionNode} from 'graphql';
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import type {Sources} from 'relay-compiler';
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class GraphQLNodeMap extends Map<string, ExecutableDefinitionNode> {
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static from(nodes: Iterable<ExecutableDefinitionNode>): GraphQLNodeMap {
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const result = new GraphQLNodeMap();
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for (const node of nodes) {
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const name = getName(node);
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const prevNode = result.get(name);
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if (prevNode) {
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throw createUserError(`Duplicate node named '${name}'`, null, [
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node,
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prevNode,
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]);
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}
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result.set(name, node);
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}
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return result;
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}
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static fromSources(
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sources: Sources<ExecutableDefinitionNode>,
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): GraphQLNodeMap {
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return GraphQLNodeMap.from(sources.nodes());
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}
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enforceGet(name: string): ExecutableDefinitionNode {
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const node = this.get(name);
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if (!node) {
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throw createCompilerError(
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`GraphQLNodeMap: expected to have a node named ${name}.`,
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);
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}
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return node;
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}
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}
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module.exports = GraphQLNodeMap;
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