Wasm.Char
- Package
- purescript-wasm-base
- Repository
- purs-wasm/purescript-wasm-base
WasmBase Wasm.Char (ADR 0026 / 0030): the Char ↔ code-point Int conversions the
Data.String.* UTF-8 codec is written over. A Char is a Unicode code point on this
backend (ADR 0030 — not a UTF-16 code unit), represented as an i32, so both directions are
the identity on that i32; on wasm they resolve to the CharCodeId intrinsic (no-op).
Per ADR 0026, Wasm.* is first-order only — no HOFs, no Prelude. All types are Prim
(Char / Int).
The accompanying Wasm/Char.js provides them for stock purs / purs-backend-es (there a
Char is a JS UTF-16 unit, so the JS impls use charCodeAt / fromCharCode).
#toCodePoint Source
toCodePoint :: Char -> IntThe Char's Unicode code point. On wasm: the CharCodeId intrinsic (identity).
#fromCodePoint Source
fromCodePoint :: Int -> CharThe Char for a code point, unchecked (the caller guarantees a valid code point; the
UTF-8 decoder only ever produces valid ones). On wasm: the CharCodeId intrinsic (identity).