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Refine API for contexts.

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Stephen Chung
2021-01-01 17:05:06 +08:00
parent 70f79d5402
commit 0a69caaf6d
8 changed files with 100 additions and 64 deletions
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20
doc/src/rust/register-raw.md
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@@ -65,15 +65,17 @@ The function signature passed to `Engine::register_raw_fn` takes the following f
where:
| Parameter | Type | Description |
| -------------------------- | :-----------------------------: | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `T` | `impl Clone` | return type of the function |
| `context` | `NativeCallContext` | the current _native call context_ |
| &bull; `engine()` | `&Engine` | the current [`Engine`], with all configurations and settings.<br/>This is sometimes useful for calling a script-defined function within the same evaluation context using [`Engine::call_fn`][`call_fn`], or calling a [function pointer]. |
| &bull; `source()` | `Option<&str>` | reference to the current source, if any |
| &bull; `imports()` | `Option<&Imports>` | reference to the current stack of [modules] imported via `import` statements (if any) |
| &bull; `iter_namespaces()` | `impl Iterator<Item = &Module>` | iterator of the namespaces (as [modules]) containing all script-defined functions |
| `args` | `&mut [&mut Dynamic]` | a slice containing `&mut` references to [`Dynamic`] values.<br/>The slice is guaranteed to contain enough arguments _of the correct types_. |
| Parameter | Type | Description |
| -------------------------- | :-------------------------------------: | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `T` | `impl Clone` | return type of the function |
| `context` | `NativeCallContext` | the current _native call context_ |
| &bull; `engine()` | `&Engine` | the current [`Engine`], with all configurations and settings.<br/>This is sometimes useful for calling a script-defined function within the same evaluation context using [`Engine::call_fn`][`call_fn`], or calling a [function pointer]. |
| &bull; `source()` | `Option<&str>` | reference to the current source, if any |
| &bull; `iter_imports()` | `impl Iterator<Item = (&str, &Module)>` | iterator of the current stack of [modules] imported via `import` statements |
| &bull; `imports()` | `&Imports` | reference to the current stack of [modules] imported via `import` statements; requires the [`internals`] feature |
| &bull; `iter_namespaces()` | `impl Iterator<Item = &Module>` | iterator of the namespaces (as [modules]) containing all script-defined functions |
| &bull; `namespaces()` | `&[&Module]` | reference to the namespaces (as [modules]) containing all script-defined functions; requires the [`internals`] feature |
| `args` | `&mut [&mut Dynamic]` | a slice containing `&mut` references to [`Dynamic`] values.<br/>The slice is guaranteed to contain enough arguments _of the correct types_. |
### Return value