mirror of
https://github.com/facebookarchive/prepack.git
synced 2024-09-11 14:46:37 +03:00
Summary: Release notes: none This cleans up generator.js in the following ways: - pulls our NameGenerator and PreludeGenerator into it's own module - takes out the Babel coupling with Generator and puts the serialization logic into the serializer instead This is of many PRs to help clean up the serialization/generator logic. Pull Request resolved: https://github.com/facebook/prepack/pull/2306 Differential Revision: D8961658 Pulled By: trueadm fbshipit-source-id: 4aa3f34c2df1b26eef5719d1a49a5985b9a0e7b3
101 lines
3.2 KiB
JavaScript
101 lines
3.2 KiB
JavaScript
/**
|
|
* Copyright (c) 2017-present, Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD-style license found in the
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
|
*/
|
|
|
|
/* @flow */
|
|
|
|
import madge from "madge";
|
|
import { exec } from "child_process";
|
|
|
|
const MAX_CYCLE_LEN = 56; // NEVER EVER increase this value
|
|
|
|
const cmd = "flow check --profile --merge-timeout 0";
|
|
exec(cmd, function(error, stdout, stderr) {
|
|
error;
|
|
stdout;
|
|
/*
|
|
pattern format:
|
|
...
|
|
cycle detected among the following files:
|
|
file1
|
|
file2
|
|
...
|
|
filen
|
|
... more flow output after unindented line
|
|
*/
|
|
let inCycle = false;
|
|
let cycles = 0;
|
|
let cycle_len = 0,
|
|
max_cycle_len = 0;
|
|
let found_ecma = false,
|
|
found_realm = false;
|
|
let lines = stderr.split("\n");
|
|
for (let line of lines) {
|
|
if (inCycle && !line.startsWith("\t")) {
|
|
if (found_ecma && found_realm) {
|
|
console.error("Invalid Dependencies: ecma262/ is in a circular dependency with realm.js");
|
|
console.error("Run the following command to see the cycle: " + cmd);
|
|
process.exit(1);
|
|
}
|
|
max_cycle_len = Math.max(cycle_len, max_cycle_len);
|
|
cycle_len = 0;
|
|
found_ecma = found_realm = false;
|
|
inCycle = false;
|
|
}
|
|
if (!inCycle && line === "cycle detected among the following nodes:") {
|
|
inCycle = true;
|
|
cycles++;
|
|
} else if (inCycle) {
|
|
cycle_len++;
|
|
found_ecma = found_ecma || line.includes("/ecma262/");
|
|
found_realm = found_realm || line.includes("/realm.js");
|
|
}
|
|
}
|
|
if (inCycle || cycles === 0 || !(max_cycle_len > 0)) {
|
|
console.error("Error while processing Flow stderr, couldn't find cycle information:");
|
|
for (let line of lines) console.error(line);
|
|
process.exit(1);
|
|
}
|
|
console.log("Biggest cycle: " + max_cycle_len + " (out of " + cycles + " cycles reported by Flow)");
|
|
if (max_cycle_len > MAX_CYCLE_LEN) {
|
|
console.error("Error: You increased cycle length from the previous high of " + MAX_CYCLE_LEN);
|
|
console.error("This is never OK.");
|
|
console.error("Run the following command to see the cycle: " + cmd);
|
|
process.exit(1);
|
|
}
|
|
});
|
|
|
|
// NB: This doesn't prevent cycles using "import type" because those are
|
|
// erased in the lib folder but madge doesn't work with flow type imports.
|
|
|
|
madge("./lib/").then(res => {
|
|
let deps = res.obj();
|
|
let idx_deps = res.depends("intrinsics/index");
|
|
if (idx_deps.length !== 1 || idx_deps[0] !== "construct_realm") {
|
|
console.error("Invalid Dependency: Intrinsics index depends on " + idx_deps[0]);
|
|
process.exit(1);
|
|
}
|
|
|
|
for (let dep in deps) {
|
|
// Nothing in intrinsics/ecma262 depends on anything but intrinsics/index except Error and global.
|
|
if (
|
|
dep.startsWith("intrinsics/ecma262") &&
|
|
dep !== "intrinsics/ecma262/Error" &&
|
|
dep !== "intrinsics/ecma262/global"
|
|
) {
|
|
let ext_deps = res
|
|
.depends(dep)
|
|
.filter(depend => depend !== "intrinsics/index" && !depend.startsWith("intrinsics/ecma262"));
|
|
if (ext_deps.length > 0) {
|
|
console.error("Invalid Dependency: " + dep + " depends on " + ext_deps);
|
|
process.exit(1);
|
|
}
|
|
}
|
|
}
|
|
});
|