feat(gulp-espower): Integrate empower-assert to enable transparent assertion enhancement

Author: twada

index.js

@@ -13,6 +13,9 @@ var through = require('through2');
 var gutil = require('gulp-util');
 var extend = require('xtend');
 var BufferStreams = require('bufferstreams');
+var mergeVisitors = require('merge-estraverse-visitors');
+var empowerAssert = require('empower-assert');
+var estraverse = require('estraverse');
 var espower = require('espower');
 var espowerSource = require('espower-source');
 var esprima = require('esprima');
@@ -60,7 +63,12 @@ function transform (file, encoding, opt) {
  sourceMapWithCode: true
  });
  }
- var modifiedAst = espower(jsAst, espowerOptions);
+ var modifiedAst = estraverse.replace(jsAst, mergeVisitors([
+ {
+ enter: empowerAssert.enter
+ },
+ espower.createVisitor(jsAst, espowerOptions)
+ ]));
  var escodegenOutput = escodegen.generate(modifiedAst, escodegenOptions);
  if (inMap) {
  file.contents = new Buffer(escodegenOutput.code);

test/expected/example-with-sourcemap.js

@@ -1,4 +1,4 @@
-var assert = require('power-assert'),
+var assert = require('assert'),
  truthy = 'true',
  falsy = 'false';
 assert(falsy);

test/fixtures/example.js

@@ -100,7 +100,7 @@ describe("gulp-espower", function () {
  ],
  mappings: 'AAAA,IAAAA,qBAAA;AAAA,aAAAC,mBAAA;AAAA,aAAAC,QAAA;AAAA;AAAA,IAAAD,mBAAA,CAAAE,SAAA,CAAAC,KAAA,YAAAA,KAAA,CAAAC,KAAA,EAAAC,MAAA;AAAA,aAAAJ,QAAA,CAAAK,IAAA;AAAA,YAAAF,KAAA,EAAAA,KAAA;AAAA,YAAAC,MAAA,EAAAA,MAAA;AAAA;AAAA,eAAAD,KAAA;AAAA;AAAA,IAAAJ,mBAAA,CAAAE,SAAA,CAAAK,KAAA,YAAAA,KAAA,CAAAH,KAAA,EAAAI,MAAA;AAAA;AAAA,YAAAC,kBAAA;AAAA,gBAAAL,KAAA,EAAAA,KAAA;AAAA,gBAAAM,MAAA,OAAAT,QAAA;AAAA;AAAA,YAAAO,MAAA,EAAAA,MAAA;AAAA;AAAA;AAAA,WAAAR,mBAAA;AAAA;AAGO,IAAAW,KAAA,OAAAZ,qBAAA,GAHP;AAIa,IAAAa,KAAA,OAAAb,qBAAA,GAJb;AAIqB,IAAAc,KAAA,OAAAd,qBAAA,GAJrB;AAAA,IAAIe,MAAA,GAASC,OAAA,CAAQ,cAAR,CAAb,EACIC,MAAA,GAAS,MADb,EAEIC,KAAA,GAAQ,OAFZ;AAGAH,MAAA,CAAOH,KAAA,CAAAJ,KAAA,CAAAI,KAAA,CAAAR,KAAA,CAAAc,KAAA;AAAA,IAAAC,OAAA;AAAA,IAAAC,QAAA;AAAA,IAAAC,IAAA;AAAA,EAAP,EAHA;AAIAN,MAAA,CAAOO,KAAP,CAAaT,KAAA,CAAAL,KAAA,CAAAK,KAAA,CAAAT,KAAA,CAAAa,MAAA;AAAA,IAAAE,OAAA;AAAA,IAAAC,QAAA;AAAA,IAAAC,IAAA;AAAA,EAAb,EAAqBP,KAAA,CAAAN,KAAA,CAAAM,KAAA,CAAAV,KAAA,CAAAc,KAAA;AAAA,IAAAC,OAAA;AAAA,IAAAC,QAAA;AAAA,IAAAC,IAAA;AAAA,EAArB',
  file: 'example.js',
- sourcesContent: [ 'var assert = require(\'power-assert\'),\n truthy = \'true\',\n falsy = \'false\';\nassert(falsy);\nassert.equal(truthy, falsy);\n' ] 
+ sourcesContent: [ 'var assert = require(\'assert\'),\n truthy = \'true\',\n falsy = \'false\';\nassert(falsy);\nassert.equal(truthy, falsy);\n' ] 
  });
  done();
  });