[feat]类初始化

include/Ast/InitExpr.hpp

@@ -11,13 +11,27 @@ namespace Fig::Ast
 
         std::vector<std::pair<FString, Expression>> args;
 
+        enum class InitMode
+        {
+            Positional = 1,
+            Named,
+            Shorthand
+        } initMode;
+
+        /*
+            3 ways of calling constructor
+            .1 Person {"Fig", 1, "IDK"};
+            .2 Person {name: "Fig", age: 1, sex: "IDK"}; // can be unordered
+            .3 Person {name, age, sex};
+        */
+
         InitExprAst()
         {
             type = AstType::InitExpr;
         }
 
-        InitExprAst(FString _structName, std::vector<std::pair<FString, Expression>> _args) :
-            structName(std::move(_structName)), args(std::move(_args))
+        InitExprAst(FString _structName, std::vector<std::pair<FString, Expression>> _args, InitMode _initMode) :
+            structName(std::move(_structName)), args(std::move(_args)), initMode(_initMode)
         {
             type = AstType::InitExpr;
         }