es6-arrow-function-expression.js 11 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657
  1. (function() {
  2. var escope, expect, harmony;
  3. expect = require('chai').expect;
  4. harmony = require('../third_party/esprima');
  5. escope = require('..');
  6. describe('ES6 arrow function expression', function() {
  7. it('materialize scope for arrow function expression', function() {
  8. var ast, scope, scopeManager;
  9. ast = harmony.parse("var arrow = () => {\n let i = 0;\n var j = 20;\n console.log(i);\n}");
  10. scopeManager = escope.analyze(ast, {
  11. ecmaVersion: 6
  12. });
  13. expect(scopeManager.scopes).to.have.length(2);
  14. scope = scopeManager.scopes[0];
  15. expect(scope.type).to.be.equal('global');
  16. expect(scope.block.type).to.be.equal('Program');
  17. expect(scope.isStrict).to.be["false"];
  18. expect(scope.variables).to.have.length(1);
  19. scope = scopeManager.scopes[1];
  20. expect(scope.type).to.be.equal('function');
  21. expect(scope.block.type).to.be.equal('ArrowFunctionExpression');
  22. expect(scope.isStrict).to.be["true"];
  23. expect(scope.variables).to.have.length(2);
  24. expect(scope.variables[0].name).to.be.equal('i');
  25. return expect(scope.variables[1].name).to.be.equal('j');
  26. });
  27. return it('generate bindings for parameters', function() {
  28. var ast, scope, scopeManager;
  29. ast = harmony.parse("var arrow = (a, b, c, d) => {\n}");
  30. scopeManager = escope.analyze(ast, {
  31. ecmaVersion: 6
  32. });
  33. expect(scopeManager.scopes).to.have.length(2);
  34. scope = scopeManager.scopes[0];
  35. expect(scope.type).to.be.equal('global');
  36. expect(scope.block.type).to.be.equal('Program');
  37. expect(scope.isStrict).to.be["false"];
  38. expect(scope.variables).to.have.length(1);
  39. scope = scopeManager.scopes[1];
  40. expect(scope.type).to.be.equal('function');
  41. expect(scope.block.type).to.be.equal('ArrowFunctionExpression');
  42. expect(scope.isStrict).to.be["true"];
  43. expect(scope.variables).to.have.length(4);
  44. expect(scope.variables[0].name).to.be.equal('a');
  45. expect(scope.variables[1].name).to.be.equal('b');
  46. expect(scope.variables[2].name).to.be.equal('c');
  47. return expect(scope.variables[3].name).to.be.equal('d');
  48. });
  49. });
  50. }).call(this);
  51. //# sourceMappingURL=data:application/json;base64,{"version":3,"sources":["es6-arrow-function-expression.coffee"],"names":[],"mappings":"AAuBA;AAAA,MAAA,uBAAA;;AAAA,EAAA,MAAA,GAAS,OAAA,CAAS,MAAT,CAAe,CAAC,MAAzB,CAAA;;AAAA,EACA,OAAA,GAAU,OAAA,CAAS,wBAAT,CADV,CAAA;;AAAA,EAEA,MAAA,GAAS,OAAA,CAAS,IAAT,CAFT,CAAA;;AAAA,EAIA,QAAA,CAAU,+BAAV,EAA0C,SAAA,GAAA;AACtC,IAAA,EAAA,CAAI,iDAAJ,EAAsD,SAAA,GAAA;AAClD,UAAA,wBAAA;AAAA,MAAA,GAAA,GAAM,OAAO,CAAC,KAAR,CAAiB,8EAAjB,CAAN,CAAA;AAAA,MAQA,YAAA,GAAe,MAAM,CAAC,OAAP,CAAe,GAAf,EAAoB;AAAA,QAAA,WAAA,EAAa,CAAb;OAApB,CARf,CAAA;AAAA,MASA,MAAA,CAAO,YAAY,CAAC,MAApB,CAA2B,CAAC,EAAE,CAAC,IAAI,CAAC,MAApC,CAA2C,CAA3C,CATA,CAAA;AAAA,MAWA,KAAA,GAAQ,YAAY,CAAC,MAAO,CAAA,CAAA,CAX5B,CAAA;AAAA,MAYA,MAAA,CAAO,KAAK,CAAC,IAAb,CAAkB,CAAC,EAAE,CAAC,EAAE,CAAC,KAAzB,CAAgC,QAAhC,CAZA,CAAA;AAAA,MAaA,MAAA,CAAO,KAAK,CAAC,KAAK,CAAC,IAAnB,CAAwB,CAAC,EAAE,CAAC,EAAE,CAAC,KAA/B,CAAsC,SAAtC,CAbA,CAAA;AAAA,MAcA,MAAA,CAAO,KAAK,CAAC,QAAb,CAAsB,CAAC,EAAE,CAAC,EAAE,CAAC,OAAD,CAd5B,CAAA;AAAA,MAeA,MAAA,CAAO,KAAK,CAAC,SAAb,CAAuB,CAAC,EAAE,CAAC,IAAI,CAAC,MAAhC,CAAuC,CAAvC,CAfA,CAAA;AAAA,MAiBA,KAAA,GAAQ,YAAY,CAAC,MAAO,CAAA,CAAA,CAjB5B,CAAA;AAAA,MAkBA,MAAA,CAAO,KAAK,CAAC,IAAb,CAAkB,CAAC,EAAE,CAAC,EAAE,CAAC,KAAzB,CAAgC,UAAhC,CAlBA,CAAA;AAAA,MAmBA,MAAA,CAAO,KAAK,CAAC,KAAK,CAAC,IAAnB,CAAwB,CAAC,EAAE,CAAC,EAAE,CAAC,KAA/B,CAAsC,yBAAtC,CAnBA,CAAA;AAAA,MAoBA,MAAA,CAAO,KAAK,CAAC,QAAb,CAAsB,CAAC,EAAE,CAAC,EAAE,CAAC,MAAD,CApB5B,CAAA;AAAA,MAqBA,MAAA,CAAO,KAAK,CAAC,SAAb,CAAuB,CAAC,EAAE,CAAC,IAAI,CAAC,MAAhC,CAAuC,CAAvC,CArBA,CAAA;AAAA,MAuBA,MAAA,CAAO,KAAK,CAAC,SAAU,CAAA,CAAA,CAAE,CAAC,IAA1B,CAA+B,CAAC,EAAE,CAAC,EAAE,CAAC,KAAtC,CAA6C,GAA7C,CAvBA,CAAA;aAwBA,MAAA,CAAO,KAAK,CAAC,SAAU,CAAA,CAAA,CAAE,CAAC,IAA1B,CAA+B,CAAC,EAAE,CAAC,EAAE,CAAC,KAAtC,CAA6C,GAA7C,EAzBkD;IAAA,CAAtD,CAAA,CAAA;WA2BA,EAAA,CAAI,kCAAJ,EAAuC,SAAA,GAAA;AACnC,UAAA,wBAAA;AAAA,MAAA,GAAA,GAAM,OAAO,CAAC,KAAR,CAAiB,kCAAjB,CAAN,CAAA;AAAA,MAKA,YAAA,GAAe,MAAM,CAAC,OAAP,CAAe,GAAf,EAAoB;AAAA,QAAA,WAAA,EAAa,CAAb;OAApB,CALf,CAAA;AAAA,MAMA,MAAA,CAAO,YAAY,CAAC,MAApB,CAA2B,CAAC,EAAE,CAAC,IAAI,CAAC,MAApC,CAA2C,CAA3C,CANA,CAAA;AAAA,MAQA,KAAA,GAAQ,YAAY,CAAC,MAAO,CAAA,CAAA,CAR5B,CAAA;AAAA,MASA,MAAA,CAAO,KAAK,CAAC,IAAb,CAAkB,CAAC,EAAE,CAAC,EAAE,CAAC,KAAzB,CAAgC,QAAhC,CATA,CAAA;AAAA,MAUA,MAAA,CAAO,KAAK,CAAC,KAAK,CAAC,IAAnB,CAAwB,CAAC,EAAE,CAAC,EAAE,CAAC,KAA/B,CAAsC,SAAtC,CAVA,CAAA;AAAA,MAWA,MAAA,CAAO,KAAK,CAAC,QAAb,CAAsB,CAAC,EAAE,CAAC,EAAE,CAAC,OAAD,CAX5B,CAAA;AAAA,MAYA,MAAA,CAAO,KAAK,CAAC,SAAb,CAAuB,CAAC,EAAE,CAAC,IAAI,CAAC,MAAhC,CAAuC,CAAvC,CAZA,CAAA;AAAA,MAcA,KAAA,GAAQ,YAAY,CAAC,MAAO,CAAA,CAAA,CAd5B,CAAA;AAAA,MAeA,MAAA,CAAO,KAAK,CAAC,IAAb,CAAkB,CAAC,EAAE,CAAC,EAAE,CAAC,KAAzB,CAAgC,UAAhC,CAfA,CAAA;AAAA,MAgBA,MAAA,CAAO,KAAK,CAAC,KAAK,CAAC,IAAnB,CAAwB,CAAC,EAAE,CAAC,EAAE,CAAC,KAA/B,CAAsC,yBAAtC,CAhBA,CAAA;AAAA,MAiBA,MAAA,CAAO,KAAK,CAAC,QAAb,CAAsB,CAAC,EAAE,CAAC,EAAE,CAAC,MAAD,CAjB5B,CAAA;AAAA,MAkBA,MAAA,CAAO,KAAK,CAAC,SAAb,CAAuB,CAAC,EAAE,CAAC,IAAI,CAAC,MAAhC,CAAuC,CAAvC,CAlBA,CAAA;AAAA,MAoBA,MAAA,CAAO,KAAK,CAAC,SAAU,CAAA,CAAA,CAAE,CAAC,IAA1B,CAA+B,CAAC,EAAE,CAAC,EAAE,CAAC,KAAtC,CAA6C,GAA7C,CApBA,CAAA;AAAA,MAqBA,MAAA,CAAO,KAAK,CAAC,SAAU,CAAA,CAAA,CAAE,CAAC,IAA1B,CAA+B,CAAC,EAAE,CAAC,EAAE,CAAC,KAAtC,CAA6C,GAA7C,CArBA,CAAA;AAAA,MAsBA,MAAA,CAAO,KAAK,CAAC,SAAU,CAAA,CAAA,CAAE,CAAC,IAA1B,CAA+B,CAAC,EAAE,CAAC,EAAE,CAAC,KAAtC,CAA6C,GAA7C,CAtBA,CAAA;aAuBA,MAAA,CAAO,KAAK,CAAC,SAAU,CAAA,CAAA,CAAE,CAAC,IAA1B,CAA+B,CAAC,EAAE,CAAC,EAAE,CAAC,KAAtC,CAA6C,GAA7C,EAxBmC;IAAA,CAAvC,EA5BsC;EAAA,CAA1C,CAJA,CAAA;AAAA","file":"es6-arrow-function-expression.js","sourceRoot":"/source/","sourcesContent":["# -*- coding: utf-8 -*-\n#  Copyright (C) 2014 Yusuke Suzuki <utatane.tea@gmail.com>\n#\n#  Redistribution and use in source and binary forms, with or without\n#  modification, are permitted provided that the following conditions are met:\n#\n#    * Redistributions of source code must retain the above copyright\n#      notice, this list of conditions and the following disclaimer.\n#    * Redistributions in binary form must reproduce the above copyright\n#      notice, this list of conditions and the following disclaimer in the\n#      documentation and/or other materials provided with the distribution.\n#\n#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\n#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\n#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n#  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY\n#  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n#  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\n#  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\n#  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n#  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\n#  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nexpect = require('chai').expect\nharmony = require '../third_party/esprima'\nescope = require '..'\n\ndescribe 'ES6 arrow function expression', ->\n    it 'materialize scope for arrow function expression', ->\n        ast = harmony.parse \"\"\"\n        var arrow = () => {\n            let i = 0;\n            var j = 20;\n            console.log(i);\n        }\n        \"\"\"\n\n        scopeManager = escope.analyze ast, ecmaVersion: 6\n        expect(scopeManager.scopes).to.have.length 2\n\n        scope = scopeManager.scopes[0]\n        expect(scope.type).to.be.equal 'global'\n        expect(scope.block.type).to.be.equal 'Program'\n        expect(scope.isStrict).to.be.false\n        expect(scope.variables).to.have.length 1\n\n        scope = scopeManager.scopes[1]\n        expect(scope.type).to.be.equal 'function'\n        expect(scope.block.type).to.be.equal 'ArrowFunctionExpression'\n        expect(scope.isStrict).to.be.true\n        expect(scope.variables).to.have.length 2\n        # There's no \"arguments\"\n        expect(scope.variables[0].name).to.be.equal 'i'\n        expect(scope.variables[1].name).to.be.equal 'j'\n\n    it 'generate bindings for parameters', ->\n        ast = harmony.parse \"\"\"\n        var arrow = (a, b, c, d) => {\n        }\n        \"\"\"\n\n        scopeManager = escope.analyze ast, ecmaVersion: 6\n        expect(scopeManager.scopes).to.have.length 2\n\n        scope = scopeManager.scopes[0]\n        expect(scope.type).to.be.equal 'global'\n        expect(scope.block.type).to.be.equal 'Program'\n        expect(scope.isStrict).to.be.false\n        expect(scope.variables).to.have.length 1\n\n        scope = scopeManager.scopes[1]\n        expect(scope.type).to.be.equal 'function'\n        expect(scope.block.type).to.be.equal 'ArrowFunctionExpression'\n        expect(scope.isStrict).to.be.true\n        expect(scope.variables).to.have.length 4\n        # There's no \"arguments\"\n        expect(scope.variables[0].name).to.be.equal 'a'\n        expect(scope.variables[1].name).to.be.equal 'b'\n        expect(scope.variables[2].name).to.be.equal 'c'\n        expect(scope.variables[3].name).to.be.equal 'd'\n\n# vim: set sw=4 ts=4 et tw=80 :\n"]}