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errorCheck.ts

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import * as fs from "fs";

import * as async from "async";

import * as glob from "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: RegExpExecArray | null;

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: RegExpExecArray | null;

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");

});

});