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LibJS: Implement the "instanceof" operator

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This operator walks the prototype chain of the RHS value and looks for
a "prototype" property with the same value as the prototype of the LHS.

This is pretty cool. :^)
This commit is contained in:
Andreas Kling 2020-03-28 16:56:54 +01:00
parent 37fe16a99c
commit a3d92b1210
6 changed files with 41 additions and 1 deletions
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Libraries/LibJS/Runtime/Value.h
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@ -189,6 +189,7 @@ Value mul(Value lhs, Value rhs);
Value div(Value lhs, Value rhs);
Value eq(Value lhs, Value rhs);
Value typed_eq(Value lhs, Value rhs);
Value instance_of(Value lhs, Value rhs);
const LogStream& operator<<(const LogStream&, const Value&);