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GeezerVison is showing github.com — TypeScript/scripts/errorCheck.ts at main · lowr/TypeScript

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errorCheck.ts

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const fs = require("fs");
const async = require("async");
const glob = require("glob");
fs.readFile("src/compiler/diagnosticMessages.json", "utf-8", (err, data) => {
if (err) {
throw err;
}
const messages = JSON.parse(data);
const keys = Object.keys(messages);
console.log("Loaded " + keys.length + " errors");
for (const k of keys) {
messages[k].seen = false;
}
const errRegex = /\(\d+,\d+\): error TS([^:]+):/g;
const baseDir = "tests/baselines/reference/";
fs.readdir(baseDir, (err, files) => {
files = files.filter(f => f.indexOf(".errors.txt") > 0);
const tasks: ((callback: () => void) => void)[] = [];
files.forEach(f => tasks.push(done => {
fs.readFile(baseDir + f, "utf-8", (err, baseline) => {
if (err) throw err;
let g: string[];
while (g = errRegex.exec(baseline)) {
const errCode = +g[1];
const msg = keys.filter(k => messages[k].code === errCode)[0];
messages[msg].seen = true;
}
done();
});
}));
async.parallelLimit(tasks, 25, done => {
console.log("== List of errors not present in baselines ==");
let count = 0;
for (const k of keys) {
if (messages[k].seen !== true) {
console.log(k);
count++;
}
}
console.log(count + " of " + keys.length + " errors are not in baselines");
});
});
});
fs.readFile("src/compiler/diagnosticInformationMap.generated.ts", "utf-8", (err, data) => {
const errorRegexp = /\s(\w+): \{ code/g;
const errorNames: string[] = [];
let errMatch: string[];
while (errMatch = errorRegexp.exec(data)) {
errorNames.push(errMatch[1]);
}
let allSrc = "";
glob("./src/**/*.ts", {}, (err, files) => {
console.log("Reading " + files.length + " source files");
for (const file of files) {
if (file.indexOf("diagnosticInformationMap.generated.ts") > 0) {
continue;
}
const src = fs.readFileSync(file, "utf-8");
allSrc = allSrc + src;
}
console.log("Consumed " + allSrc.length + " characters of source");
let count = 0;
console.log("== List of errors not used in source ==");
for (const errName of errorNames) {
if (allSrc.indexOf(errName) < 0) {
console.log(errName);
count++;
}
}
console.log(count + " of " + errorNames.length + " errors are not used in source");
});
});
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