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https://github.com/fluencelabs/wasm-bindgen
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guide: Split supported types section up into many sub sections
This commit is contained in:
Nick Fitzgerald
parent
b1e3101fd4
commit
a5a8fd747d
@ -16,6 +16,18 @@
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- [Arbitrary Data with Serde](./reference/arbitrary-data-with-serde.md)
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- [Command Line Interface](./reference/cli.md)
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- [Supported Types](./reference/types.md)
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- [Imported JavaScript Types](./reference/types/imported-js-types.md)
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- [Exported Rust Types](./reference/types/exported-rust-types.md)
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- [`JsValue`](./reference/types/jsvalue.md)
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- [`Box<[JsValue]>`](./reference/types/boxed-jsvalue-slice.md)
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- [`*const T` and `*mut T`](./reference/types/pointers.md)
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- [Numbers](./reference/types/numbers.md)
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- [`bool`](./reference/types/bool.md)
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- [`char`](./reference/types/char.md)
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- [`str`](./reference/types/str.md)
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- [`String`](./reference/types/string.md)
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- [Number Slices](./reference/types/number-slices.md)
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- [Boxed Number Slices](./reference/types/boxed-number-slices.md)
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- [`#[wasm_bindgen]` Attributes](./reference/attributes/index.md)
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- [On JavaScript Imports](./reference/attributes/on-js-imports/index.md)
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- [`catch`](./reference/attributes/on-js-imports/catch.md)
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@ -3,232 +3,3 @@
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This section provides an overview of all the types that `wasm-bindgen` can send
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and receive across the WebAssembly ABI boundary, and how they translate into
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JavaScript.
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## Imported `extern Whatever;` JavaScript Types
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | Yes | No | Yes | Yes | Yes | Instances of the extant `Whatever` JavaScript class / prototype constructor |
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/imported_types.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/imported_types.js}}
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```
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## Exported `struct Whatever` Rust Types
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | Yes | Yes | Yes | No | No | Instances of a `wasm-bindgen`-generated JavaScript `class Whatever { ... }` |
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/exported_types.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/exported_types.js}}
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```
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## `str`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| No | Yes | No | No | No | No | JavaScript string value |
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Copies the string's contents back and forth between the JavaScript
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garbage-collected heap and the Wasm linear memory with `TextDecoder` and
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`TextEncoder`. If you don't want to perform this copy, and would rather work
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with handles to JavaScript string values, use the `js_sys::JsString` type.
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/str.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/str.js}}
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```
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## `String`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | Yes | Yes | JavaScript string value |
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Copies the string's contents back and forth between the JavaScript
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garbage-collected heap and the Wasm linear memory with `TextDecoder` and
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`TextEncoder`
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/string.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/string.js}}
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```
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## `char`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | No | No | A JavaScript string value |
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/char.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/char.js}}
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```
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## `bool`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | Yes | Yes | A JavaScript boolean value |
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/bool.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/bool.js}}
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```
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## `wasm_bindgen::JsValue`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | Yes | No | Yes | No | No | Any JavaScript value |
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/js_value.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/js_value.js}}
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```
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## `Box<[JsValue]>`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | Yes | Yes | A JavaScript `Array` object |
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/boxed_js_value_slice.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/boxed_js_value_slice.js}}
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```
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## `*const T` `*mut T`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | No | No | A JavaScript number value |
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/pointers.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/pointers.js}}
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```
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## `u8` `i8` `u16` `i16` `u32` `i32` `u64` `i64` `isize` `usize` `f32` `f64`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | Yes | Yes | A JavaScript number value |
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/numbers.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/numbers.js}}
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```
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## `Box<[u8]>` `Box<[i8]>` `Box<[u16]>` `Box<[i16]>` `Box<[u32]>` `Box<[i32]>` `Box<[u64]>` `Box<[i64]>` `Box<[f32]>` `Box<[f64]>`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | Yes | Yes | A JavaScript `TypedArray` of the appropriate type (`Int32Array`, `Uint8Array`, etc...) |
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Note that the contents of the slice are copied into the JavaScript `TypedArray`
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from the Wasm linear memory when returning a boxed slice to JavaScript, and vice
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versa when receiving a JavaScript `TypedArray` as a boxed slice in Rust.
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/boxed_number_slices.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/boxed_number_slices.js}}
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```
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## `[u8]` `[i8]` `[u16]` `[i16]` `[u32]` `[i32]` `[u64]` `[i64]` `[f32]` `[f64]`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<&T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| No | Yes | Yes | No | No | No | A JavaScript `TypedArray` view of the Wasm memory for the boxed slice of the appropriate type (`Int32Array`, `Uint8Array`, etc) |
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### Example Rust Usage
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```rust
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{{#include ../../../examples/guide-supported-types-examples/src/number_slices.rs}}
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```
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### Example JavaScript Usage
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```js
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{{#include ../../../examples/guide-supported-types-examples/number_slices.js}}
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```
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17
guide/src/reference/types/bool.md
Normal file
17
guide/src/reference/types/bool.md
Normal file
@ -0,0 +1,17 @@
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# `bool`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | Yes | Yes | A JavaScript boolean value |
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## Example Rust Usage
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```rust
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{{#include ../../../../examples/guide-supported-types-examples/src/bool.rs}}
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```
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## Example JavaScript Usage
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```js
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{{#include ../../../../examples/guide-supported-types-examples/bool.js}}
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```
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17
guide/src/reference/types/boxed-jsvalue-slice.md
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17
guide/src/reference/types/boxed-jsvalue-slice.md
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# `Box<[JsValue]>`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | Yes | Yes | A JavaScript `Array` object |
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## Example Rust Usage
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```rust
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{{#include ../../../../examples/guide-supported-types-examples/src/boxed_js_value_slice.rs}}
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```
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## Example JavaScript Usage
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```js
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{{#include ../../../../examples/guide-supported-types-examples/boxed_js_value_slice.js}}
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```
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21
guide/src/reference/types/boxed-number-slices.md
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21
guide/src/reference/types/boxed-number-slices.md
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@ -0,0 +1,21 @@
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# Boxed Number Slices: `Box<[u8]>`, `Box<[i8]>`, `Box<[u16]>`, `Box<[i16]>`, `Box<[u32]>`, `Box<[i32]>`, `Box<[u64]>`, `Box<[i64]>`, `Box<[f32]>`, and `Box<[f64]>`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | Yes | Yes | A JavaScript `TypedArray` of the appropriate type (`Int32Array`, `Uint8Array`, etc...) |
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Note that the contents of the slice are copied into the JavaScript `TypedArray`
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from the Wasm linear memory when returning a boxed slice to JavaScript, and vice
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versa when receiving a JavaScript `TypedArray` as a boxed slice in Rust.
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## Example Rust Usage
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```rust
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{{#include ../../../../examples/guide-supported-types-examples/src/boxed_number_slices.rs}}
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```
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## Example JavaScript Usage
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```js
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{{#include ../../../../examples/guide-supported-types-examples/boxed_number_slices.js}}
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```
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17
guide/src/reference/types/char.md
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17
guide/src/reference/types/char.md
Normal file
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# `char`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | No | No | Yes | No | No | A JavaScript string value |
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## Example Rust Usage
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```rust
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{{#include ../../../../examples/guide-supported-types-examples/src/char.rs}}
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```
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## Example JavaScript Usage
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```js
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{{#include ../../../../examples/guide-supported-types-examples/char.js}}
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```
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17
guide/src/reference/types/exported-rust-types.md
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17
guide/src/reference/types/exported-rust-types.md
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# Exported `struct Whatever` Rust Types
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | Yes | Yes | Yes | No | No | Instances of a `wasm-bindgen`-generated JavaScript `class Whatever { ... }` |
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## Example Rust Usage
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```rust
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{{#include ../../../../examples/guide-supported-types-examples/src/exported_types.rs}}
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```
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## Example JavaScript Usage
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```js
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{{#include ../../../../examples/guide-supported-types-examples/exported_types.js}}
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```
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17
guide/src/reference/types/imported-js-types.md
Normal file
17
guide/src/reference/types/imported-js-types.md
Normal file
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# Imported `extern Whatever;` JavaScript Types
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | Yes | No | Yes | Yes | Yes | Instances of the extant `Whatever` JavaScript class / prototype constructor |
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## Example Rust Usage
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```rust
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{{#include ../../../../examples/guide-supported-types-examples/src/imported_types.rs}}
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```
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## Example JavaScript Usage
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```js
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{{#include ../../../../examples/guide-supported-types-examples/imported_types.js}}
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```
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17
guide/src/reference/types/jsvalue.md
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17
guide/src/reference/types/jsvalue.md
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# `JsValue`
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| Yes | Yes | No | Yes | No | No | Any JavaScript value |
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## Example Rust Usage
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```rust
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{{#include ../../../../examples/guide-supported-types-examples/src/js_value.rs}}
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```
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## Example JavaScript Usage
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```js
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{{#include ../../../../examples/guide-supported-types-examples/js_value.js}}
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```
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17
guide/src/reference/types/number-slices.md
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17
guide/src/reference/types/number-slices.md
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# Number Slices: `[u8]`, `[i8]`, `[u16]`, `[i16]`, `[u32]`, `[i32]`, `[u64]`, `[i64]`, `[f32]`, and `[f64]`
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|
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| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<&T>` parameter | `Option<T>` return value | JavaScript representation |
|
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|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
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| No | Yes | Yes | No | No | No | A JavaScript `TypedArray` view of the Wasm memory for the boxed slice of the appropriate type (`Int32Array`, `Uint8Array`, etc) |
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## Example Rust Usage
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|
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```rust
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{{#include ../../../../examples/guide-supported-types-examples/src/number_slices.rs}}
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```
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## Example JavaScript Usage
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```js
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{{#include ../../../../examples/guide-supported-types-examples/number_slices.js}}
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```
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17
guide/src/reference/types/numbers.md
Normal file
17
guide/src/reference/types/numbers.md
Normal file
@ -0,0 +1,17 @@
|
||||
# Numbers: `u8`, `i8`, `u16`, `i16`, `u32`, `i32`, `u64`, `i64`, `isize`, `usize`, `f32`, and `f64`
|
||||
|
||||
| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
|
||||
|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
|
||||
| Yes | No | No | Yes | Yes | Yes | A JavaScript number value |
|
||||
|
||||
## Example Rust Usage
|
||||
|
||||
```rust
|
||||
{{#include ../../../../examples/guide-supported-types-examples/src/numbers.rs}}
|
||||
```
|
||||
|
||||
## Example JavaScript Usage
|
||||
|
||||
```js
|
||||
{{#include ../../../../examples/guide-supported-types-examples/numbers.js}}
|
||||
```
|
||||
17
guide/src/reference/types/pointers.md
Normal file
17
guide/src/reference/types/pointers.md
Normal file
@ -0,0 +1,17 @@
|
||||
# `*const T` and `*mut T`
|
||||
|
||||
| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
|
||||
|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
|
||||
| Yes | No | No | Yes | No | No | A JavaScript number value |
|
||||
|
||||
## Example Rust Usage
|
||||
|
||||
```rust
|
||||
{{#include ../../../../examples/guide-supported-types-examples/src/pointers.rs}}
|
||||
```
|
||||
|
||||
## Example JavaScript Usage
|
||||
|
||||
```js
|
||||
{{#include ../../../../examples/guide-supported-types-examples/pointers.js}}
|
||||
```
|
||||
22
guide/src/reference/types/str.md
Normal file
22
guide/src/reference/types/str.md
Normal file
@ -0,0 +1,22 @@
|
||||
# `str`
|
||||
|
||||
| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
|
||||
|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
|
||||
| No | Yes | No | No | No | No | JavaScript string value |
|
||||
|
||||
Copies the string's contents back and forth between the JavaScript
|
||||
garbage-collected heap and the Wasm linear memory with `TextDecoder` and
|
||||
`TextEncoder`. If you don't want to perform this copy, and would rather work
|
||||
with handles to JavaScript string values, use the `js_sys::JsString` type.
|
||||
|
||||
## Example Rust Usage
|
||||
|
||||
```rust
|
||||
{{#include ../../../../examples/guide-supported-types-examples/src/str.rs}}
|
||||
```
|
||||
|
||||
## Example JavaScript Usage
|
||||
|
||||
```js
|
||||
{{#include ../../../../examples/guide-supported-types-examples/str.js}}
|
||||
```
|
||||
21
guide/src/reference/types/string.md
Normal file
21
guide/src/reference/types/string.md
Normal file
@ -0,0 +1,21 @@
|
||||
# `String`
|
||||
|
||||
| `T` parameter | `&T` parameter | `&mut T` parameter | `T` return value | `Option<T>` parameter | `Option<T>` return value | JavaScript representation |
|
||||
|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
|
||||
| Yes | No | No | Yes | Yes | Yes | JavaScript string value |
|
||||
|
||||
Copies the string's contents back and forth between the JavaScript
|
||||
garbage-collected heap and the Wasm linear memory with `TextDecoder` and
|
||||
`TextEncoder`
|
||||
|
||||
## Example Rust Usage
|
||||
|
||||
```rust
|
||||
{{#include ../../../../examples/guide-supported-types-examples/src/string.rs}}
|
||||
```
|
||||
|
||||
## Example JavaScript Usage
|
||||
|
||||
```js
|
||||
{{#include ../../../../examples/guide-supported-types-examples/string.js}}
|
||||
```
|
||||
Loading…
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Reference in New Issue
Block a user