TypeScript sourcemaps support

[guybedford]

Better piping is needed at https://github.com/systemjs/builder/blob/master/compilers/esm.js#L105 to handle the source map generation flow.

[guybedford]

This is now merged.

[guybedford]

Released in 0.13.2.

[cherrydev]

This still appears to be busted. When I set sourceMaps: true I get external source maps with the wrong line offsets. When I set sourceMaps: "inline" my typescript files the .ts files in Chrome actually show me the generated javascript instead of the typescript source (but at least the line offsets are correct?). I'm using TypeScript 1.5.3 and systemjs-builder 0.13.5.

Edit: Also tried with TypeScript 1.6.0-beta and dailies.

[smajl]

@guybedford My sincere apologies that I am bothering you, but can I ask, how to properly generate sourcemaps when building from typescript? Build passes but all I get in a sourcemaps file is this: {"version":3,"sources":[],"names":[],"mappings":"","file":"app-build.js"}

My app structure:

www/...
system.config.js
gulpfile.js
...

Contents of system.config.js:

System.config({
  baseURL: "www",
  defaultJSExtensions: true,
  transpiler: "typescript",
  typescriptOptions: {
    "module": "commonjs"
  },
  paths: {
    "app": "ts"
  },

  packages: {
    "ts": {
      "main": "app",
      "defaultExtension": "ts"
    }
  },

  map: {
    "typescript": "/node_modules/typescript/lib/typescript"
  }
});

My gulp task:

var Builder = require('systemjs-builder');
gulp.task('scripts', function() {
  var builder = new Builder();

  builder.loadConfig('system.config.js').then(function() {
    return builder.buildStatic('app', 'www/js/app-build.js', { sourceMaps: true });
  });
});

[guybedford]

@smajl thanks I will check this out when I can. Have you tried looking at https://github.com/frankwallis/plugin-typescript?

[smajl]

@guybedford I looked into that and managed to bundle the app with sourcemaps using plugin-typescript - unfortunately line numbers are off. Also I have trouble loading the mentioned plugin when bundling - I have to temporarily change baseUrl to point to www, otherwise it tries to load the plugin from the root folder insted of www/jspm_packages/....