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Export enumeration support
Any enumeration that is blessed with `CaseIterable` can be then exported to Godot
by using `@Export(.enum)` on it, like this:
```
enum MyEnumeration: Int, CaseIterable {
case first
case second
}
```
To export, use the `.enum` parameter to Export:
```
@godot
class Demo: Node {
@export(.enum)
var myState: MyEnumeration
}
```
One limitation of the current change is that this works by using
`CaseIterable`, either by manually typing it, or using the
`PickerNameProvider` macro.- Loading branch information
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111
Tests/SwiftGodotMacrosTests/MacroGodotExportEnumTests.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| // | ||
| // MacroGodotExportEnumTests.swift | ||
| // SwiftGodotMacrosTests | ||
| // | ||
| // Created by Estevan Hernandez on 11/29/23. | ||
| // | ||
|
|
||
| import SwiftSyntaxMacros | ||
| import SwiftSyntaxMacrosTestSupport | ||
| import XCTest | ||
| import SwiftGodotMacroLibrary | ||
|
|
||
| final class MacroGodotExportEnumTests: XCTestCase { | ||
| let testMacros: [String: Macro.Type] = [ | ||
| "Godot": GodotMacro.self, | ||
| "Export": GodotExport.self, | ||
| ] | ||
|
|
||
| func testExportEnumGodot() { | ||
| assertMacroExpansion( | ||
| """ | ||
| enum Demo: Int, CaseIterable { | ||
| case first | ||
| } | ||
| enum Demo64: Int64, CaseIterable { | ||
| case first | ||
| } | ||
| @Godot | ||
| class SomeNode: Node { | ||
| @Export(.enum) var demo: Demo | ||
| @Export(.enum) var demo64: Demo64 | ||
| } | ||
| """, | ||
| expandedSource: | ||
| """ | ||
| enum Demo: Int, CaseIterable { | ||
| case first | ||
| } | ||
| enum Demo64: Int64, CaseIterable { | ||
| case first | ||
| } | ||
| class SomeNode: Node { | ||
| var demo: Demo | ||
| func _mproxy_set_demo (args: [Variant]) -> Variant? { | ||
| if let iv = Int (args [0]), let ev = Demo(rawValue: numericCast (iv)) { | ||
| self.demo = ev | ||
| } | ||
| return nil | ||
| } | ||
| func _mproxy_get_demo (args: [Variant]) -> Variant? { | ||
| return Variant (demo.rawValue) | ||
| } | ||
| var demo64: Demo64 | ||
| func _mproxy_set_demo64 (args: [Variant]) -> Variant? { | ||
| if let iv = Int (args [0]), let ev = Demo64(rawValue: numericCast (iv)) { | ||
| self.demo64 = ev | ||
| } | ||
| return nil | ||
| } | ||
| func _mproxy_get_demo64 (args: [Variant]) -> Variant? { | ||
| return Variant (demo64.rawValue) | ||
| } | ||
| override open class var classInitializer: Void { | ||
| let _ = super.classInitializer | ||
| return _initializeClass | ||
| } | ||
| private static var _initializeClass: Void = { | ||
| let className = StringName("SomeNode") | ||
| assert(ClassDB.classExists(class: className)) | ||
| let classInfo = ClassInfo<SomeNode> (name: className) | ||
| let _pdemo = PropInfo ( | ||
| propertyType: .int, | ||
| propertyName: "demo", | ||
| className: className, | ||
| hint: .enum, | ||
| hintStr: tryCase (Demo.self), | ||
| usage: .default) | ||
| classInfo.registerMethod (name: "_mproxy_get_demo", flags: .default, returnValue: _pdemo, arguments: [], function: SomeNode._mproxy_get_demo) | ||
| classInfo.registerMethod (name: "_mproxy_set_demo", flags: .default, returnValue: nil, arguments: [_pdemo], function: SomeNode._mproxy_set_demo) | ||
| classInfo.registerProperty (_pdemo, getter: "_mproxy_get_demo", setter: "_mproxy_set_demo") | ||
| let _pdemo64 = PropInfo ( | ||
| propertyType: .int, | ||
| propertyName: "demo64", | ||
| className: className, | ||
| hint: .enum, | ||
| hintStr: tryCase (Demo64.self), | ||
| usage: .default) | ||
| classInfo.registerMethod (name: "_mproxy_get_demo64", flags: .default, returnValue: _pdemo64, arguments: [], function: SomeNode._mproxy_get_demo64) | ||
| classInfo.registerMethod (name: "_mproxy_set_demo64", flags: .default, returnValue: nil, arguments: [_pdemo64], function: SomeNode._mproxy_set_demo64) | ||
| classInfo.registerProperty (_pdemo64, getter: "_mproxy_get_demo64", setter: "_mproxy_set_demo64") | ||
| func tryCase <T : RawRepresentable & CaseIterable> (_ type: T.Type) -> GString { | ||
| GString (type.allCases.map { v in | ||
| "\\(v):\\(v.rawValue)" | ||
| } .joined(separator: ",")) | ||
| } | ||
| func tryCase <T : RawRepresentable> (_ type: T.Type) -> String { | ||
| "" | ||
| } | ||
| } () | ||
| } | ||
| """, | ||
| macros: testMacros | ||
| ) | ||
| } | ||
| } |
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