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using colons instead of periods to invoke method calls

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Junseo Yoo 2024-07-01 12:09:14 -07:00
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10
docs/user-defined-type-functions.md
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@ -72,7 +72,7 @@ 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.getnil()`. For instance, `typelib.newtable()` initializes its properties with an empty table and index / index result type as `typelib.getnil()`. All attributes of newly created typelib are initialized with empty tables / arrays and `typelib:getnil()`. For instance, `typelib:newtable()` initializes its properties with an empty table and index / index result type as `typelib:getnil()`.
| Function Declaration | Return Type | Description | | Function Declaration | Return Type | Description |
| ------------- | ------------- | ------------- | | ------------- | ------------- | ------------- |
@ -140,7 +140,7 @@ All attributes of newly created typelib are initialized with empty tables / arra
| ------------- | ------------- | ------------- | | ------------- | ------------- | ------------- |
| `addprops(key: typelib, value: typelib)` | `nil` | adds a key, value pair to self's table properties; if the same key exists already, overrides the value | | `addprops(key: typelib, value: typelib)` | `nil` | adds a key, value pair to self's table properties; if the same key exists already, overrides the value |
| `delprops(key: typelib)` | `nil` | removes the key from self's table properties along with the value associated with it; if the key doesn't exist, nothing happens | | `delprops(key: typelib)` | `nil` | removes the key from self's table properties along with the value associated with it; if the key doesn't exist, nothing happens |
| `getprops()` | `{typelib: typelib}` | returns a table of self's table properties (e.g. `{["age"] = 20}` will return `{typelib.getstringsingleton("age") = typelib.getnumber()}`) | | `getprops()` | `{typelib: typelib}` | returns a table of self's table properties (e.g. `{["age"] = 20}` will return `{typelib:getstringsingleton("age") = typelib:getnumber()}`) |
| `settableindexer(indexty: typelib, indexresultty: typelib)` | `nil` | sets self's index type to the first argument and index result type to the second | | `settableindexer(indexty: typelib, indexresultty: typelib)` | `nil` | sets self's index type to the first argument and index result type to the second |
| `getindextype()` | `typelib` | returns self's index type | | `getindextype()` | `typelib` | returns self's index type |
| `getindexresulttype()` | `typelib` | returns self's index result type | | `getindexresulttype()` | `typelib` | returns self's index result type |
@ -169,13 +169,13 @@ All attributes of newly created typelib are initialized with empty tables / arra
| Function Declaration | Return Type | Description | | Function Declaration | Return Type | Description |
| ------------- | ------------- | ------------- | | ------------- | ------------- | ------------- |
| `getoptions()` | `table` | returns an array of types that the union can represent. For instance, `string \| number` returns `{typelib.getstring(), typelib.getnumber()}` | | `getoptions()` | `table` | returns an array of types that the union can represent. For instance, `string \| number` returns `{typelib:getstring(), typelib:getnumber()}` |
#### Intersection #### Intersection
| Function Declaration | Return Type | Description | | Function Declaration | Return Type | Description |
| ------------- | ------------- | ------------- | | ------------- | ------------- | ------------- |
| `getparts()` | `table` | returns an array of types represented by the intersection. For instance, `string & number` returns `{typelib.getstring(), typelib.getnumber()}` | | `getparts()` | `table` | returns an array of types represented by the intersection. For instance, `string & number` returns `{typelib:getstring(), typelib:getnumber()}` |
#### Class #### Class
@ -222,7 +222,7 @@ type function isSingleton(t)
end end
``` ```
In some sense, this design could be considered "cleaner" than introducing an entirely new userdata, but it requires developers to have a deeper understanding of the type runtime representation. For example, under the proposed design, a new table type can be created using `typelib.new("table")`, while under the alternative design, tables must be declared with attributes: `{type = "table", props = {}, indexer = {}}`. This adds complexity to the developer experience and increases the chance of making syntax errors in their program. In some sense, this design could be considered "cleaner" than introducing an entirely new userdata, but it requires developers to have a deeper understanding of the type runtime representation. For example, under the proposed design, a new table type can be created using `typelib:newtable()`, while under the alternative design, tables must be declared with attributes: `{type = "table", props = {}, indexer = {}}`. This adds complexity to the developer experience and increases the chance of making syntax errors in their program.
### More Builtin Type Functions ### More Builtin Type Functions