[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;
         }

include/Ast/VarAssignSt.hpp

@@ -1,26 +0,0 @@
-#pragma once
-
-#include <Ast/astBase.hpp>
-
-namespace Fig::Ast
-{
-    class VarAssignSt final : public StatementAst
-    {
-    public:
-        const FString varName;
-        const Expression valueExpr;
-
-        VarAssignSt()
-        {
-            type = AstType::VarAssignSt;
-        }
-
-        VarAssignSt(FString _varName, Expression _valueExpr) :
-            varName(std::move(_varName)), valueExpr(std::move(_valueExpr))
-        {
-            type = AstType::VarAssignSt;
-        }
-    };
-
-    using VarAssign = std::shared_ptr<VarAssignSt>;
-}; // namespace Fig

include/Ast/astBase.hpp

@@ -25,7 +25,6 @@ namespace Fig::Ast
         UnaryExpr,
         BinaryExpr,
         TernaryExpr,
-
         ListExpr, // []
         TupleExpr, // ()
         MapExpr,   // {}
@@ -215,7 +214,8 @@ namespace Fig::Ast
         ShiftRight, // >>
 
         // 赋值表达式
-        Walrus, // :=
+        Assign, // =
+        // Walrus, // :=
 
         // 点运算符 .
         Dot,
@@ -250,7 +250,7 @@ namespace Fig::Ast
         Operator::ShiftLeft,
         Operator::ShiftRight,
 
-        Operator::Walrus,
+        // Operator::Walrus,
         Operator::Dot};
     static const std::unordered_set<Operator> ternaryOps{Operator::TernaryCond};
 
@@ -290,7 +290,7 @@ namespace Fig::Ast
         {TokenType::ShiftRight, Operator::ShiftRight},
 
         // 赋值表达式
-        {TokenType::Walrus, Operator::Walrus},
+        // {TokenType::Walrus, Operator::Walrus}, 
         // 点运算符
         {TokenType::Dot, Operator::Dot},
     }; // :=