JavaScript:JS3 Requirements: Difference between revisions

Latest revision as of 05:23, 25 June 2007

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

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+* 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 [http://www.whatwg.org/specs/web-apps/current-work/#html5 HTML5]
+* BigInt and other Big numeric types (int64/uint64?), and pragma support to use them for numeric literals and operators by default