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Add more reserved keywords.

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Stephen Chung
2020-07-26 21:57:30 +08:00
parent 878ba0b794
commit ce20248792
3 changed files with 84 additions and 44 deletions
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doc/src/language/keywords.md
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@@ -5,18 +5,21 @@ Keywords
The following are reserved keywords in Rhai:
| Keywords | Usage | Not available under feature |
| ------------------------------------------------- | --------------------- | :-------------------------: |
| `true`, `false` | Boolean constants | |
| `let`, `const` | Variable declarations | |
| `if`, `else` | Control flow | |
| `while`, `loop`, `for`, `in`, `continue`, `break` | Looping | |
| `fn`, `private` | Functions | [`no_function`] |
| `return` | Return values | |
| `throw` | throw exceptions | |
| `import`, `export`, `as` | Modules | [`no_module`] |
| `Fn`, `call` | Function pointers | |
| `type_of`, `print`, `debug`, `eval` | Special functions | |
| Active keywords | Reserved keywords | Usage | Inactive under feature |
| ------------------------------------------------- | ---------------------------------------- | --------------------- | :--------------------: |
| `true`, `false` | | Boolean constants | |
| `let`, `const` | `var`, `static` | Variable declarations | |
| `if`, `else` | `then`, `goto` | Control flow | |
| | `switch`, `match`, `case` | Matching | |
| `while`, `loop`, `for`, `in`, `continue`, `break` | `do`, `each` | Looping | |
| `fn`, `private` | `public`, `new` | Functions | [`no_function`] |
| `return` | | Return values | |
| `throw` | `try`, `catch` | Throw exceptions | |
| `import`, `export`, `as` | `use`, `with`, `module`, `package` | Modules/packages | [`no_module`] |
| `Fn`, `call`, `curry` | | Function pointers | |
| | `spawn`, `go`, `async`, `await`, `yield` | Threading/async | |
| `type_of`, `print`, `debug`, `eval` | | Special functions | |
| | `default`, `void`, `null`, `nil` | Special values | |
Keywords cannot become the name of a [function] or [variable], even when they are disabled.
Keywords cannot be the name of a [function] or [variable], unless the relevant feature is enabled.
For example, `fn` is a valid variable name under [`no_function`].