JavaScript:JS3 Requirements
From MozillaWiki
- Standardized hybrid information flow security model
- AST binary syntax as over-the-wire standard (self-verifying? implicit flows?)
- AST reflection
- Quotations
- Hygienic macros
- Safe, scalable concurrency
- "E5X"
- E4X's query and path operators rationalized for all types
- XDuce or similar extensions to the JS2/ES4 type system
- Changes to the core language, in particular to error handling rules, to make it easier to add new syntax in future versions of the language (JS n, where n > 3) without scripts using those languages breaking in earlier browsers (JS 3..n-1)
- This requires lexical and syntactic grammar extensibility, not just error handling as in HTML5
- BigInt and other Big numeric types (int64/uint64?), and pragma support to use them for numeric literals and operators by default
