ES6 typings #987

mhegazy · 2014-10-29T07:01:00Z

This is the first stab at ES6 typing's. i think i have all the main ones covered in this review.

There are still a main issue here that we are not handling, which is the manageability of the library. currently we have multiple files, for DOM webworkers, etc.. and the target adds another dimension.

We have talked about this before in the design meeting to add a new attribute that allows us to filter out types based on tags. this is a different issue and will be handled in a future change.

Still missing:

Use of known symbols as we do not have support for computed properties yet.

DanielRosenwasser · 2014-10-29T07:27:26Z

src/lib/core.d.ts

- * Allows manipulation and formatting of text strings and determination and location of substrings within strings. 
- */
-declare var String: {
+interface StringConstructor {


Are we set on _Constructor? I have reservations because it's more than just a constructor; you have

fromCharCode(...codes: number[]): string;

which is a method on the static side. A lot of .d.ts libraries tend to use the _Static as a naming convention for these types.

I can honestly view it either way.

I have no strong feelings about the name. Personally I would rather not introduce a new named type and kept it the way it is now; and maybe we should.
But if we were to change it, am ok with type_static.

I would prefer StringConstructor. The ES spec calls it "the String Constructor" when describing the object and does not ever use the word "static" except to reserve it as a keyword.

http://www.ecma-international.org/ecma-262/5.1/#sec-15.5.3

CyrusNajmabadi · 2014-10-30T08:39:43Z

src/compiler/tsc.ts

@@ -193,7 +193,7 @@ module ts {

 return {
 getSourceFile: getSourceFile,
- getDefaultLibFilename: () => combinePaths(getDirectoryPath(normalizePath(sys.getExecutingFilePath())), "lib.d.ts"),
+ getDefaultLibFilename: (options) => combinePaths(getDirectoryPath(normalizePath(sys.getExecutingFilePath())), options.target === ScriptTarget.ES6 ? "lib.es6.d.ts" : "lib.d.ts"),


Conflicts: tests/baselines/reference/arrayTypeOfTypeOf.errors.txt tests/baselines/reference/redefineArray.errors.txt

DanielRosenwasser · 2014-11-13T02:01:17Z

src/lib/es6.d.ts

+ * String.raw is intended for use as a tag function of a Tagged Template String. When called as such the first argument will be a well formed 
+ * template call site object and the rest parameter will contain the substitution values
+ */
+ raw(callSite: { raw: string; }, ...substitutions: any[]);


callSite is a misleading name; also, this doesn't have a return type annotation. It should be string[].

DanielRosenwasser · 2014-11-13T02:05:43Z

Are we going to include TemplateStringsArray in this series of commits?

Side note: We've been having issues with how to deal with that when we try to typecheck a tagged template in ES5 mode, but when TemplateStringsArray isn't in the lib. @sheetalkamat and I talked about it and I'm going to make the checker use unknown in pre-ES6 targets for now.

mhegazy · 2014-11-13T03:41:23Z

I think this a fair addition to the existing lib.d.ts, nothing dependent on the runtime here. So I would say just add the definition and I will be it up when I merge.

…type when possible

mhegazy · 2014-11-17T21:37:49Z

@rbuckton and @bterlson this the ES6 typings. your feedback would be appreciated:)
you would want to look at sr\lib\es.d.ts; this should include the ES6 specific additions. thanks!

bterlson · 2014-11-17T22:17:45Z

you mean es6.d.ts?

Took a look, looks good to me. Only minor concern is the duplication of methods on each TypedArray when it's very unlikely the different TA's will have different methods on them.

mhegazy · 2014-11-18T04:21:51Z

Thanks @bterlson, I originally had one interface TypesArray that others inherited from bu did not want to add the extra name in the global namespace. i can go back there, should be less definitions overall.

rbuckton · 2014-11-18T05:54:21Z

SymbolConstructor is missing the prototype property (per 19.4.2.7 of ES6 spec)
Symbol is missing the constructor property (per 19.4.3.1)
Comment on line 43 says "should be flatten", though it seems like it should read "should flatten"
Line 238, Array.prototype.keys is an Iterator, not an Array, according to the spec (22.1.3.13).
Line 243, Array.prototype.values is an Iterator, not an Array, according to the spec (22.1.3.14).
The value property of the IteratorResult interface should be optional, per the spec (25.1.1.3).
Since es6.d.ts currently documents symbolic members with comments, the Iterator interface should have a comment that notes that it contains Symbol.Iterator, assuming this is describing "%IteratorPrototype%", per the spec (25.1.2.1.1).
ES6 also defines a new GeneratorFunction object, which inherits from Function, per the spec (25.2.1). I would recommend adding GeneratorFunction and GeneratorFunctionConstructor, inheriting from Function and FunctionConstructor respectively. There also would be a GeneratorConstructor in the value space.
The Generator interface is may not be easy to apply to an actual generator. The reason is that the value of its IteratorResult can come from either a yield in the body of the generator function, as well as from a return in the body of a generator function. Anyone using Generator will likely have to reference it as Generator<T|R> where T is the type for value when done is false, and R is the type for value when done is true.
Generator is missing the return method, per the spec (25.3.1.3)
keys and values on Map should be Iterator, not Array, per the spec (23.1.3.8, 23.1.3.11)
keys and values on Set should be Iterator, not `Array, per the spec (23.2.3.8, 23.2.3.10)
Proxy does not have a ProxyConstructor, which would be consistent with the other _Constructor interfaces in the file.
Though not in the typings for Promise that I provided, the ES6 Promise constructor can be called as a regular function, per the spec (25.4.3.1)
PromiseConstructor is missing the prototype property
Promise is missing the constructor property

sheetalkamat · 2014-11-20T20:25:28Z

src/compiler/types.ts

@@ -1171,6 +1171,7 @@ module ts {
 version?: boolean;
 watch?: boolean;
 preserveConstEnums?: boolean;
+ allowNonTsExtensions?: boolean;


What happens on compile on save - So what happens with emit - what file name do we give.. Should it be emitted? Should it be considered ts file and not .d.ts file? What about declaration file generation - I think we should give error if emit is called with this option. (Emit time error)
We need tests with and without this option and .d.ts and .js file generation. Can be compiler baseline I guess.

Conflicts: src/compiler/parser.ts src/compiler/tsc.ts src/harness/harness.ts src/harness/projectsRunner.ts tests/baselines/reference/templateStringsArrayTypeDefinedInES5Mode.errors.txt

mhegazy · 2014-11-27T18:06:24Z

Notes on @rbuckton 's remarks:

SymbolConstructor is missing the prototype property (per 19.4.2.7 of ES6 spec)
- done
Symbol is missing the constructor property (per 19.4.3.1)
- you should get that from object anyways, we do not usually add it as it polutes the completion list
Comment on line 43 says "should be flatten", though it seems like it should read "should flatten"
- done
Line 238, Array.prototype.keys is an Iterator, not an Array, according to the spec (22.1.3.13).
- done
Line 243, Array.prototype.values is an Iterator, not an Array, according to the spec (22.1.3.14).
- done
The value property of the IteratorResult interface should be optional, per the spec (25.1.1.3).
- done
Since es6.d.ts currently documents symbolic members with comments, the Iterator interface should have a comment that notes that it contains Symbol.Iterator, assuming this is describing "%IteratorPrototype%", per the spec (25.1.2.1.1).
- done
ES6 also defines a new GeneratorFunction object, which inherits from Function, per the spec (25.2.1). I would recommend adding GeneratorFunction and GeneratorFunctionConstructor, inheriting from Function and FunctionConstructor respectively. There also would be a GeneratorConstructor in the value space.
- done
The Generator interface is may not be easy to apply to an actual generator. The reason is that the value of its IteratorResult can come from either a yield in the body of the generator function, as well as from a return in the body of a generator function. Anyone using Generator will likely have to reference it as Generator<T|R> where T is the type for value when done is false, and R is the type for value when done is true.
- i think we need to revisit this when we do generators. generatos have to use a special function, so i am not sure when or how we are going to use this generic type.
  may be type it like
  next(): IteratorResult<T>; next<R>(value: R): IteratorResult<T|R>;
Generator is missing the return method, per the spec (25.3.1.3)
- done
keys and values on Map should be Iterator, not Array, per the spec (23.1.3.8, 23.1.3.11)
- done
keys and values on Set should be Iterator, not `Array, per the spec (23.2.3.8, 23.2.3.10)
- done
Proxy does not have a ProxyConstructor, which would be consistent with the other _Constructor interfaces in the file.
- done
Though not in the typings for Promise that I provided, the ES6 Promise constructor can be called as a regular function, per the spec (25.4.3.1)
- I do not think so, from step 2 in section 25.4.3.1, "If Type(promise) is not Object, then throw a TypeError exception."
PromiseConstructor is missing the prototype property
- done
Promise is missing the constructor property
- you should get that from object anyways, we do not usually add it as it polutes the completion list

rbuckton · 2014-11-28T05:13:38Z

Regarding Promise Constructor, you are correct. It looks like the behavior of
25.4.3.1 is to support subclassing Promise, though subclassing does not seem to be supported in TypeScript given Promise is defined via interfaces.

Conflicts: tests/baselines/reference/constDeclarationShadowedByVarDeclaration3.types

ES6 typings

mhegazy added 3 commits October 28, 2014 21:21

Allow static side of native types to be extended

fe4a96e

First draft of es6 typings

c8db066

Load the es6 lib if target is es6

63e1363

DanielRosenwasser reviewed Oct 29, 2014
View reviewed changes

Add reflect definition

4f8605b

CyrusNajmabadi reviewed Oct 30, 2014
View reviewed changes

mhegazy added 10 commits November 10, 2014 16:46

Merge branch 'master' into es6Typings

13a6487

Conflicts: tests/baselines/reference/arrayTypeOfTypeOf.errors.txt tests/baselines/reference/redefineArray.errors.txt

remove unused arguments for getCompiler

00bfc06

Add additional property to mapfn for Array.from

ff32be7

Use the correct name for interface Math

f5eef43

Fix paramters for Math.hypot function

6ae43f3

Use PropertyKey instead of string when appropriate

6b5d0b0

Make WeakMap.prototype.set second parameter optional

20bbebc

Make Map.prototype.set second paramter optional

4257e1c

Cleanup Proxy definition

abed6e4

Add support for typed arrays

ded34ef

DanielRosenwasser reviewed Nov 13, 2014
View reviewed changes

mhegazy added 5 commits November 14, 2014 10:14

Fix symbol constructor and update Object properties

7d6f7ea

Add Promise typing support

2897612

Respond to code review comments

1986fb1

allow non ts files to be passed in to the compiler

0629bba

Add test262 test runner

6c6d9bf

mhegazy added 4 commits November 17, 2014 12:47

Add dom to es6 lib

1abe1d7

minor fixes

bdee183

Add some more jsdoc comments and ensure everything has a constructor …

4c2f5d1

…type when possible

remove extra call to getSourceFile

ff2e4fa

mhegazy mentioned this pull request Nov 20, 2014

Language service wants all files to end in *.ts or *.d.ts #1015

Closed

sheetalkamat reviewed Nov 20, 2014
View reviewed changes

mhegazy added 3 commits November 20, 2014 13:25

Respond to code review comments

ebf4ed8

Merge branch 'master' into es6typings

d3e70ec

Conflicts: src/compiler/parser.ts src/compiler/tsc.ts src/harness/harness.ts src/harness/projectsRunner.ts tests/baselines/reference/templateStringsArrayTypeDefinedInES5Mode.errors.txt

Merge branch 'master' into es6Typings

507ec3d

mhegazy added 3 commits November 27, 2014 13:01

Add tree serializer to test262

ef14da0

Move collateOutputs to harness

af38970

Add the test262 helper file

cc270c7

mhegazy mentioned this pull request Nov 30, 2014

Use static interfaces for Ambient declarations in lib.d.ts #182

Closed

mhegazy added 4 commits December 1, 2014 13:22

Merge branch 'master' into es6Typings

199b71c

handel serializing diagnostics

99d13f4

Merge branch 'master' into es6typings

4e79458

Conflicts: tests/baselines/reference/constDeclarationShadowedByVarDeclaration3.types

add missing prototype definitions

d390f67

mhegazy added a commit that referenced this pull request Dec 2, 2014

Merge pull request #987 from Microsoft/es6Typings

28a3745

ES6 typings

mhegazy merged commit 28a3745 into master Dec 2, 2014

mhegazy deleted the es6Typings branch December 2, 2014 01:32

mhegazy mentioned this pull request Dec 2, 2014

Add a syntax serializer to the harness #1141

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ES6 typings #987

ES6 typings #987

mhegazy commented Oct 29, 2014

DanielRosenwasser Oct 29, 2014

mhegazy Oct 29, 2014

RyanCavanaugh Oct 29, 2014

CyrusNajmabadi Oct 30, 2014

DanielRosenwasser Nov 13, 2014

DanielRosenwasser commented Nov 13, 2014

mhegazy commented Nov 13, 2014

mhegazy commented Nov 17, 2014

bterlson commented Nov 17, 2014

mhegazy commented Nov 18, 2014

rbuckton commented Nov 18, 2014

sheetalkamat Nov 20, 2014

mhegazy commented Nov 27, 2014

rbuckton commented Nov 28, 2014

ES6 typings #987

ES6 typings #987

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mhegazy commented Oct 29, 2014

DanielRosenwasser Oct 29, 2014

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DanielRosenwasser commented Nov 13, 2014

mhegazy commented Nov 13, 2014

mhegazy commented Nov 17, 2014

bterlson commented Nov 17, 2014

mhegazy commented Nov 18, 2014

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mhegazy commented Nov 27, 2014

rbuckton commented Nov 28, 2014