ES6 Main Tracking Issue

[mikesherov]

2.0

• arrow functions
• default function parameters ( ES6 feature: Default Parameters: tracking Issue #1005)
• binary/octal integer literals
• shorthand object property notation
• method definitions (in object literal)
• regular expression flags
• extended unicode escapes in strings, templates, and regexps "\u{123456}"
• implicit octals

2.1 (#1067)

• block-scoped variable declarations (let/const) (ES6 feature: Let and Const Declaration #1065)
• disallow initialiser in for-in head (let / const / var)
• rest parameters (ES6 feature: Rest Parameters: tracking Issue #1011)
• computed property names (ES6 feature: computed property name #1037)
• remove duplicate object property (besides proto) strict mode restriction (ES6 feature: computed property name #1037)
• classes (ES6 feature: Classes: tracking Issue #1001)

2.2 (#1161)

• template strings (ES6 Feature: Template Strings: tracking Issue #1074)
• destructuring (ES6 feature: Destructuring: Tracking Issue #1045)
• import and export declarations (ES6 feature: Modules: Tracking Issue #1000)
• super calls and super member accesses (Implement Super Node #1147)

2.3 (#1189)

• generator functions + yield (ES6 feature: Generator: Tracking Issue #1033)

2.4 (#1202)

• for-of (ES6 feature: Iteration using for of #1047)
• spread arguments (ES6: Spread Element (for function argument) #1169)

2.5 (#1246)

• meta property (ES6 feature: Meta property #1203)
• yield: keyword vs identifier (Generator: correctly distinguish yield as identifier vs keyword #1186)
• identifier name (ES6 Updated identifier name #1232 and Recognize identifier characters from the Supplementary Multilingual Plane #1244)
• await (Treat await as a reserved word when parsing a module #1234)

[ariya]

Also, take a look at https://github.com/jquery/esprima/blob/master/ChangeLog. 2.0 already has few more stuff there.

[mikesherov]

@ariya, does this look right now?

[ariya]

There was also implicit octal in 2.0. I personally prefer this term (taken from V8), rather than noctal (which seems to be a bit made-up and has no precedent anywhere else). /cc @ikarienator

[ariya]

2.1 partially triggers an early errors for initializer in for-in (only for let and const, not yet for var).

[caridy]

2.2: import and export declarations were implemented here: #1149

[ariya]

Per our discussion this morning, I think we should resolve this task since we reach "feature complete" with respect to ES6 support (and thus let's stop indexing up to 2.5). Further defects and enhancement can be tracked separately.

[mikesherov]

Lets close it!