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ES6hasInstance #1063

Merged
merged 1 commit into from
Jun 9, 2016
Merged

ES6hasInstance #1063

merged 1 commit into from
Jun 9, 2016

Commits on Jun 9, 2016

  1. Enable ES6hasInstance in experimental 

    Recuperate perf loss from existing ES6hasInstance implementation.
Perf-neutral with vs. without -es6hasinstance switch.
Add inline-cache-invalidation for user-defined Symbol.hasInstance property in function constructor.
Revamp unit tests for ES6hasInstance.

Related ECMA262 spec sections:
6.1.5.1 Well-Known Symbols
7.3.19 OrdinaryHasInstance (C, O)
12.10.4 Runtime Semantics: InstanceofOperator(O, C)
19.2.3.6 Function.prototype [ @@hasInstance ] ( V )
    Suwei Chen committed Jun 9, 2016
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