101 lines
2.2 KiB
Haxe
101 lines
2.2 KiB
Haxe
package funkin.backend.system.macros;
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#if macro
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/**
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* Macro that automatically generates flush and load functions.
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*/
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class FunkinSaveMacro {
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/**
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* Generates flush and load functions.
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* @param saveFieldName Name of the save field (`save`)
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* @param saveFuncName Name of the save func (`flush`)
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* @param loadFuncName Name of the load func (`load`)
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* @return Array<Field>
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*/
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public static function build(saveFieldName:String = "save", saveFuncName:String = "flush", loadFuncName:String = "load"):Array<Field> {
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var fields:Array<Field> = Context.getBuildFields();
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var fieldNames:Array<String> = [];
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for(field in fields) {
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if (!field.access.contains(AStatic)) continue;
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switch(field.kind) {
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case FVar(type, expr):
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if (field.name == saveFieldName) continue;
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var valid:Bool = true;
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if (field.meta != null)
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for(m in field.meta)
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if (m.name == ":doNotSave") {
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valid = false;
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break;
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}
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if (valid)
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fieldNames.push(field.name);
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default:
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continue;
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}
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}
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/**
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* SAVE FUNCTION
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*/
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var saveFuncBlocks:Array<Expr> = [for(f in fieldNames)
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macro ${{
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pos: Context.currentPos(),
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expr: EConst(CIdent(saveFieldName))
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}}.data.$f = ${{
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pos: Context.currentPos(),
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expr: EConst(CIdent(f))
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}}
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];
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saveFuncBlocks.push(macro ${{
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pos: Context.currentPos(),
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expr: EConst(CIdent(saveFieldName))
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}}.flush());
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fields.push({
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pos: Context.currentPos(),
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name: saveFuncName,
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kind: FFun({
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args: [],
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expr: {
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pos: Context.currentPos(),
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expr: EBlock(saveFuncBlocks)
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}
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}),
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access: [APublic, AStatic]
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});
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/**
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* LOAD FUNCTION
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*/
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fields.push({
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pos: Context.currentPos(),
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name: loadFuncName,
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kind: FFun({
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args: [],
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expr: {
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pos: Context.currentPos(),
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expr: EBlock([for(f in fieldNames)
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macro if (${{
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pos: Context.currentPos(),
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expr: EConst(CIdent(saveFieldName))
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}}.data.$f != null) ${{
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pos: Context.currentPos(),
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expr: EConst(CIdent(f))
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}} = ${{
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pos: Context.currentPos(),
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expr: EConst(CIdent(saveFieldName))
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}}.data.$f
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])
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}
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}),
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access: [APublic, AStatic]
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});
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return fields;
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}
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}
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#end |