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https://github.com/facebookarchive/prepack.git
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45f37fdadf
Summary: Release notes: none We spam the console when running `test-react` and many of the errors are not errors but just noise. Interestingly this also brought about one test that genuinely is failing but before was bringing up an invalid bail-out with `dynamic-props.js`. I'll fix that as a follow up as it's unrelated to this PRs goal. Closes https://github.com/facebook/prepack/pull/1529 Differential Revision: D7149640 Pulled By: trueadm fbshipit-source-id: e3268bc92c62726a5686b1acfcfff4128b69f6cd
93 lines
2.6 KiB
JavaScript
93 lines
2.6 KiB
JavaScript
/**
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* Copyright (c) 2017-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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/* @flow */
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// NOTE:
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// put the input fb-www file in ${root}/fb-www/input.js
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// the compiled file will be saved to ${root}/fb-www/output.js
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let prepackSources = require("../lib/prepack-node.js").prepackSources;
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let path = require("path");
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let { readFile, writeFile } = require("fs");
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let { promisify } = require("util");
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let readFileAsync = promisify(readFile);
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let writeFileAsync = promisify(writeFile);
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let errorsCaptured = [];
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let prepackOptions = {
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errorHandler: diag => {
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errorsCaptured.push(diag);
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return "Fail";
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},
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compatibility: "fb-www",
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internalDebug: true,
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serialize: true,
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uniqueSuffix: "",
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maxStackDepth: 100,
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reactEnabled: true,
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reactOutput: "jsx",
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inlineExpressions: true,
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omitInvariants: true,
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abstractEffectsInAdditionalFunctions: true,
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simpleClosures: true,
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};
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let inputPath = path.resolve("fb-www/input.js");
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let outputPath = path.resolve("fb-www/output.js");
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function compileSource(source) {
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let serialized;
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try {
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serialized = prepackSources([{ filePath: "", fileContents: source, sourceMapContents: "" }], prepackOptions);
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} catch (e) {
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errorsCaptured.forEach(error => {
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console.error(error);
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});
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throw e;
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}
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return {
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// $FlowFixMe: reactStatistics do exist as we're passing reactEnabled in config
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stats: serialized.reactStatistics,
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code: serialized.code,
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};
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}
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async function compileFile() {
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let source = await readFileAsync(inputPath, "utf8");
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let { stats, code } = await compileSource(source);
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await writeFileAsync(outputPath, code);
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return stats;
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}
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function printReactEvaluationGraph(evaluatedRootNode, depth) {
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if (Array.isArray(evaluatedRootNode)) {
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for (let child of evaluatedRootNode) {
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printReactEvaluationGraph(child, depth);
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}
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} else {
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let line = `- ${evaluatedRootNode.name} (${evaluatedRootNode.status.toLowerCase()})`;
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console.log(line.padStart(line.length + depth));
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printReactEvaluationGraph(evaluatedRootNode.children, depth + 2);
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}
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}
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compileFile()
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.then(result => {
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console.log("\nCompilation complete!");
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console.log(`Optimized Trees: ${result.optimizedTrees}`);
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console.log(`Inlined Components: ${result.inlinedComponents}\n`);
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console.log(`Evaluated Tree:`);
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printReactEvaluationGraph(result.evaluatedRootNodes, 0);
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})
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.catch(e => {
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console.error(e.natickStack || e.stack);
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process.exit(1);
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});
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