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Add to README that Vec<JsValue> cannot be passed to functions

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Ryan Levick 2018-02-28 17:33:16 +01:00
parent 37da9eba14
commit 17ca87cabb
1 changed files with 2 additions and 1 deletions
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README.md
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@ -404,7 +404,8 @@ are:
* The `JsValue` type and `&JsValue` (not mutable references) * The `JsValue` type and `&JsValue` (not mutable references)
* Vectors and slices of supported integer types and of the `JsValue` type. * Vectors and slices of supported integer types and of the `JsValue` type.
All of the above can also be returned except borrowed references. Strings are All of the above can also be returned except borrowed references. Passing
`Vec<JsValue>` as an argument to a function is not currently supported. Strings are
implemented with shim functions to copy data in/out of the Rust heap. That is, a implemented with shim functions to copy data in/out of the Rust heap. That is, a
string passed to Rust from JS is copied to the Rust heap (using a generated shim string passed to Rust from JS is copied to the Rust heap (using a generated shim
to malloc some space) and then will be freed appropriately. to malloc some space) and then will be freed appropriately.