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information about pass by reference and typelib.copy() method

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Junseo Yoo 2024-07-18 02:12:18 -07:00
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docs/user-defined-type-functions.md
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@ -78,7 +78,7 @@ To allow Luau developers to modify the runtime values of types in type functions
Methods under a different type heading (ex: `Singleton`) imply that the methods are only available for those types. At the implementation level, there is a check to make sure that the type-specific methods are being called on the correct types. For instance, `getindexer()` asserts that `istable()` is true. Methods under a different type heading (ex: `Singleton`) imply that the methods are only available for those types. At the implementation level, there is a check to make sure that the type-specific methods are being called on the correct types. For instance, `getindexer()` asserts that `istable()` is true.
#### typelib #### typelib
All attributes of newly created typelib are initialized with empty tables / arrays and `typelib.nil`. For instance, `typelib.newtable()` initializes its properties with an empty table and index / index result type as `typelib.nil`. All attributes of newly created typelib are initialized with empty tables / arrays and `nil`. For instance, `typelib.newtable()` initializes its properties with an empty table and index / index result type as `nil`. Additionally, all arguments are passed by references.
| Instance Attributes | Type | Description | | Instance Attributes | Type | Description |
| ------------- | ------------- | ------------- | | ------------- | ------------- | ------------- |
@ -121,6 +121,7 @@ All attributes of newly created typelib are initialized with empty tables / arra
| `ismetatable(arg: typelib)` | `boolean` | returns true if the argument is syntactically a runtime representation of a metatable represented as a special property of the `table` type | | `ismetatable(arg: typelib)` | `boolean` | returns true if the argument is syntactically a runtime representation of a metatable represented as a special property of the `table` type |
| `isfunction(arg: typelib)` | `boolean` | returns true if the argument is syntactically a runtime representation of a `function` type | | `isfunction(arg: typelib)` | `boolean` | returns true if the argument is syntactically a runtime representation of a `function` type |
| `isclass(arg: typelib)` | `boolean` | returns true if the argument is syntactically a runtime representation of a `class` type | | `isclass(arg: typelib)` | `boolean` | returns true if the argument is syntactically a runtime representation of a `class` type |
| `copy(arg: typelib)` | `typelib` | returns a deep copy of the argument |
#### Negation #### Negation