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Clarify import/export identifier validation on the Web. #1028

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sunfishcode merged 1 commit into from
Apr 4, 2017
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Clarify import/export identifier validation on the Web. #1028

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13 changes: 5 additions & 8 deletions Web.md
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Expand Up @@ -130,14 +130,11 @@ the ES6 module system](Modules.md#integration-with-es6-modules).

### Names

A WebAssembly module imports and exports functions. WebAssembly names functions
using arbitrary-length byte sequences. Any 8-bit values are permitted in a
WebAssembly name, including the null byte and byte sequences that don't
correspond to any Unicode code point regardless of encoding. The most natural
Web representation of a mapping of function names to functions is a JS object
in which each function is a property. Property names in JS are UTF-16 encoded
strings. A WebAssembly module may fail validation on the Web if it imports or
exports functions whose names do not transcode cleanly to UTF-16 according to
A WebAssembly module can have imports and exports, which are identified using
UTF-8 byte sequences. The most natural Web representation of a mapping of export
names to exports is a JS object in which each export is a property with a name
encoded in UTF-16. A WebAssembly module fails validation on the Web if it has
imports or exports whose names do not transcode cleanly to UTF-16 according to
the following conversion algorithm, assuming that the WebAssembly name is in a
`Uint8Array` called `array`:

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