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fix(setup): use upstream traceur with explicit patches

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Also correct the transpile to ES6

Also support generics correctly

All patches are hooked in via `/tools/transpiler/index.js`
https://github.com/google/traceur-compiler/issues/1700
https://github.com/google/traceur-compiler/issues/1699
https://github.com/google/traceur-compiler/issues/1708
https://github.com/google/traceur-compiler/issues/1625
https://github.com/google/traceur-compiler/issues/1706
This commit is contained in:
Tobias Bosch
2015-02-06 13:38:52 -08:00
parent 63d8107d1c
commit f39c6dc2c7
46 changed files with 515 additions and 125 deletions
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136
tools/transpiler/unittest/transpilertests.js
View File

@ -1,21 +1,24 @@
var compiler = require('../index');
// fixme: copied from top of gulpfile
var OPTIONS = {
sourceMaps: true,
var DEFAULT_OPTIONS = {
sourceMaps: false,
annotations: true, // parse annotations
types: true, // parse types
script: false, // parse as a module
memberVariables: true, // parse class fields
outputLanguage: 'dart'
memberVariables: true // parse class fields
};
describe('transpile to dart', function(){
var options;
beforeEach(function() {
options = merge(DEFAULT_OPTIONS, {outputLanguage: 'dart'});
});
// https://github.com/angular/angular/issues/509
describe('string interpolation', function() {
it('should not interpolate inside old quotes', function(){
var result = compiler.compile(OPTIONS, "test.js",
var result = compiler.compile(options, "test.js",
"var a:number = 1;" +
"var s1:string = \"${a}\";" +
"var s2:string = '\\${a}';" +
@ -28,7 +31,7 @@ describe('transpile to dart', function(){
});
it('should not interpolate without curly braces', function() {
var result = compiler.compile(OPTIONS, "test.js",
var result = compiler.compile(options, "test.js",
"var a:number = 1;" +
"var s1:string = `$a`;" +
"var s2:string = `\\$a`;");
@ -39,7 +42,7 @@ describe('transpile to dart', function(){
});
it('should interpolate inside template quotes', function() {
var result = compiler.compile(OPTIONS, "test.js",
var result = compiler.compile(options, "test.js",
"var a:number = 1;" +
"var s1:string = `${a}`;");
expect(result.js).toBe("library test_dart;\n" +
@ -47,4 +50,121 @@ describe('transpile to dart', function(){
"String s1 = '''${a}''';\n");
});
});
describe('generic', function() {
it('should support types without generics', function() {
var result = compiler.compile(options, "test.js",
"var a:List = [];");
expect(result.js).toBe("library test_dart;\nList a = [];\n");
});
it('should support one level generics', function() {
var result = compiler.compile(options, "test.js",
"var a:List<string> = [];");
expect(result.js).toBe("library test_dart;\nList<String> a = [];\n");
});
it('should support multiple one level generics', function() {
var result = compiler.compile(options, "test.js",
"var a:List<A,B> = [];");
expect(result.js).toBe("library test_dart;\nList<A, B> a = [];\n");
});
it('should support nested generics', function() {
var result = compiler.compile(options, "test.js",
"var a:List<A<B>> = [];");
expect(result.js).toBe("library test_dart;\nList<A<B>> a = [];\n");
});
});
});
describe('transpile to es6', function() {
var options;
beforeEach(function() {
options = merge(DEFAULT_OPTIONS, {outputLanguage: 'es6', typeAssertions: 'true'});
});
it('should preserve generic type information', function() {
var result = compiler.compile(options, "test.js",
"function f(a:List<string>){}");
expect(result.js).toBe('function f(a) {\n'+
' assert.argumentTypes(a, assert.genericType(List, assert.type.string));\n'+
'}\n'+
'Object.defineProperty(f, "parameters", {get: function() {\n'+
' return [[assert.genericType(List, assert.type.string)]];\n'+
' }});\n');
});
it('should allow super() calls when transpiling to ES6 with source maps', function() {
options = merge(options, {sourceMaps: true});
var result = compiler.compile(options, "test.js",
"class Test {" +
" constructor() { super(); }" +
"}");
expect(result.js).toBe("class Test {\n" +
" constructor() {\n"+
" super();\n"+
" }\n"+
"}\n\n"+
"//# sourceMappingURL=test.map\n");
});
it('should convert types to expressions', function() {
var result = compiler.compile(options, "test.js",
"function f(a:string) {}");
expect(result.js).toBe('function f(a) {\n'+
' assert.argumentTypes(a, assert.type.string);\n'+
'}\n' +
'Object.defineProperty(f, "parameters", {get: function() {\n' +
' return [[assert.type.string]];\n' +
' }});\n');
});
it('should not convert type properties to getter/setters', function() {
var result = compiler.compile(options, "test.js",
"class Test {" +
" constructor() { this.a = 1; }" +
"}");
expect(result.js).toBe("class Test {\n" +
" constructor() {\n"+
" this.a = 1;\n"+
" }\n"+
"}\n");
});
it('should remove class field declarations', function() {
var result = compiler.compile(options, "test.js",
"class Test {" +
" a:number = 1;" +
"}");
expect(result.js).toBe("class Test {}\n");
});
it('should convert types to expressions on "assert" module', function() {
var result = compiler.compile(options, "test.js",
"function f(a:string, b) { return a+b; }");
expect(result.js).toBe('function f(a, b) {\n'+
' assert.argumentTypes(a, assert.type.string, b, assert.type.any);\n'+
' return a + b;\n'+
'}\n'+
'Object.defineProperty(f, "parameters", {get: function() {\n'+
' return [[assert.type.string], []];\n'+
' }});\n');
});
});
function merge(a, b) {
var result = {};
for (var prop in a) {
result[prop] = a[prop];
}
for (var prop in b) {
result[prop] = b[prop];
}
return result;
}