62 lines
1.5 KiB
JavaScript
62 lines
1.5 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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/*global exports:true*/
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/*jslint node:true*/
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'use strict';
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var util = require('util');
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var Syntax = require('esprima-fb').Syntax;
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var utils = require('jstransform/src/utils');
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// Top level file pragmas that must not exist for the meta transform to
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// be applied.
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var mustNotHave = [
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'nosourcemeta',
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];
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function shouldTraverseFile(state, pragmas) {
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if (state.g.sourcemeta === undefined) {
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var notHaves = true;
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mustNotHave.forEach(function (value) {
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notHaves = notHaves && !(value in pragmas);
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});
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state.g.sourcemeta = notHaves;
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}
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return state.g.sourcemeta;
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}
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var shouldTransformFile = shouldTraverseFile;
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function shouldTransformFunction(node, state, pragmas, params) /*bool*/ {
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if (!shouldTransformFile(state, pragmas)) {
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throw new Error(
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'shouldTransformFunction should not be called if shouldTransformFile ' +
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'fails'
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);
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}
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return true;
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}
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function wrapsBody() {
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return false;
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}
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function annotates() {
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return true;
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}
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exports.shouldTransformFile = shouldTransformFile;
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exports.shouldTraverseFile = shouldTraverseFile;
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exports.shouldTransformFunction = shouldTransformFunction;
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exports.wrapsBody = wrapsBody;
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exports.annotates = annotates;
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exports.name = 'sourcemeta';
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