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README.md

nanvm-lib

A NaN-boxing VM for FunctionalScript implemented in Rust. See todo/fjs-nanvm-integration.md and nanvm-lib/todo/ for design notes.

JS Operator Implementation Status

Operators on Any<A> (the top-level VM value type).

Arithmetic

Operator Description Any<A> Notes
+ Addition / concat [x] any/add.rs — delegates to Unpacked; handles number, string, bigint
- Subtraction [ ] Sub for BigInt exists; no Any-level impl
* Multiplication [x] impls/mul.rs → Numeric * Numeric
/ Division [ ]
% Remainder [ ]
** Exponentiation [ ]

Unary

Operator Description Any<A> Notes
- Unary minus [x] any/neg.rs — Neg for Any<A>
+ Unary plus [x] Any::unary_plus() method (coerces to number)
! Logical NOT [ ]
~ Bitwise NOT [ ]
typeof Type of [ ]

Comparison

Operator Description Any<A> Notes
=== Strict equality [x] any/partial_eq.rs — PartialEq for Any<A>
!== Strict inequality [x] Provided by PartialEq
< Less than [ ] PartialOrd for BigInt exists; no Any-level impl
<= Less than or equal [ ]
> Greater than [ ]
>= Greater or equal [ ]

Bitwise

Operator Description Any<A> Notes
& AND [ ]
| OR [ ]
^ XOR [ ]
<< Left shift [ ] Shl for BigInt exists; no Any-level impl
>> Signed right shift [ ] Shr for BigInt exists; no Any-level impl
>>> Unsigned right shift [ ]

Logical

Operator Description Any<A> Notes
&& Logical AND [ ]
|| Logical OR [ ]
?? Nullish coalescing [ ] Nullish type exists

Other

Operator Description Any<A> Notes
?: Conditional [ ]
. / [] Member access [ ]
in Property check [ ]
instanceof Instance check [ ]

Coercions

Coercion Status Location
To number [x] number_coercion.rs
To string [x] string_coercion.rs
To primitive [x] primitive_coercion.rs
To numeric [x] Any::to_numeric()