node.js 1.4 KB

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  1. var fs = require("fs");
  2. var UglifyJS = exports;
  3. var FILES = UglifyJS.FILES = [
  4. "./domprops.js",
  5. "../lib/utils.js",
  6. "../lib/ast.js",
  7. "../lib/parse.js",
  8. "../lib/transform.js",
  9. "../lib/scope.js",
  10. "../lib/output.js",
  11. "../lib/compress.js",
  12. "../lib/sourcemap.js",
  13. "../lib/mozilla-ast.js",
  14. "../lib/propmangle.js",
  15. "../lib/minify.js",
  16. "./exports.js",
  17. ].map(function(file){
  18. return require.resolve(file);
  19. });
  20. try {
  21. var istanbul = require("istanbul");
  22. var instrumenter = new istanbul.Instrumenter();
  23. } catch (ex) {}
  24. new Function("MOZ_SourceMap", "exports", "require", function() {
  25. var code = FILES.map(function(file) {
  26. var contents = fs.readFileSync(file, "utf8");
  27. if (instrumenter && global.__IS_TESTING__) return instrumenter.instrumentSync(contents, file);
  28. return contents;
  29. });
  30. return code.join("\n\n");
  31. }())(
  32. require("source-map"),
  33. UglifyJS,
  34. require
  35. );
  36. function infer_options(options) {
  37. var result = UglifyJS.minify("", options);
  38. return result.error && result.error.defs;
  39. }
  40. UglifyJS.default_options = function() {
  41. var defs = {};
  42. Object.keys(infer_options({ 0: 0 })).forEach(function(component) {
  43. var options = {};
  44. options[component] = { 0: 0 };
  45. if (options = infer_options(options)) {
  46. defs[component] = options;
  47. }
  48. });
  49. return defs;
  50. };