0.4.2 compiles in an endless loop

[AndreasPresthammer]

0.4.1 seem to work fine, but the 0.4.2 compiles in an endless loop. It never finishes.

[k-maru]

I can not reproduce the error.
Please show the code to reproduce.

or

grunt --verbose option log

e.g. grunt typescript --verbose

[Coridyn]

I've just found this error too. The TypeScript compiler is writing all source files out multiple times (so for 100 input files it will write out 100 * 100 = 10,000 files).

Here is an example project showing the problem: https://github.com/Coridyn/grunt-typescript-debug

Expected output:

--host.writeFile: src/app.js
  write file: src/app.js => l:/User/projects/WidgetWorks/wiwo-playground/grunt-typescript-debug/dist/app.js
--host.writeFile: src/other-file.js
  write file: src/other-file.js => l:/User/projects/WidgetWorks/wiwo-playground/grunt-typescript-debug/dist/other-file.js
2 files created. js: 2 files, map: 0 files, declaration: 0 files

Actual output:

--host.writeFile: src/app.js
  write file: src/app.js => l:/User/projects/WidgetWorks/wiwo-playground/grunt-typescript-debug/dist/app.js
--host.writeFile: src/other-file.js
  write file: src/other-file.js => l:/User/projects/WidgetWorks/wiwo-playground/grunt-typescript-debug/dist/other-file.js
--host.writeFile: src/app.js
  write file: src/app.js => l:/User/projects/WidgetWorks/wiwo-playground/grunt-typescript-debug/dist/app.js
--host.writeFile: src/other-file.js
  write file: src/other-file.js => l:/User/projects/WidgetWorks/wiwo-playground/grunt-typescript-debug/dist/other-file.js
--host.writeFile: src/app.js
  write file: src/app.js => l:/User/projects/WidgetWorks/wiwo-playground/grunt-typescript-debug/dist/app.js
--host.writeFile: src/other-file.js
  write file: src/other-file.js => l:/User/projects/WidgetWorks/wiwo-playground/grunt-typescript-debug/dist/other-file.js
6 files created. js: 6 files, map: 0 files, declaration: 0 files (492ms)

---

It looks like typescript.js compile() function (https://github.com/k-maru/grunt-typescript/blob/master/tasks/typescript.js#L738) calls checker.emitFiles() for every file.

program.getSourceFiles().forEach(function (sourceFile) {
    if (!options.noLib && sourceFile.filename === defaultLibFilename) {
        return;
    }
    var emitOutput = checker.emitFiles(sourceFile);
    errors.push.apply(errors, emitOutput.errors);
});

and tsc.js emitFiles() (https://github.com/Microsoft/TypeScript/blob/v1.1.0.1/bin/tsc.js#L8496) calls emitFile() for every file as well

ts.forEach(program.getSourceFiles(), function (sourceFile) {
    if (shouldEmitToOwnFile(sourceFile)) {
        var jsFilePath = getOwnEmitOutputFilePath(sourceFile, ".js");
        emitFile(jsFilePath, sourceFile);
    }
});

[k-maru]

Thanks Coridyn.

It seems that my reading was not enough.
I has released a modified version 0.4.3