Cleanup + little polymorph + ast_copy

core_compiler_interface.hpp

@@ -211,6 +211,8 @@ enum Ast_Type_Kind {
 
     TYPE_COMPLETING,
     TYPE_INCOMPLETE,
+    TYPE_POLYMORPH,
+
     TYPE_UNTYPED_BOOL, // FIRST_TYPED_NUMERIC, FIRST_NUMERIC
     TYPE_UNTYPED_INT,
     TYPE_UNTYPED_FLOAT, // LAST_TYPED_NUMERIC
@@ -306,7 +308,6 @@ enum Ast_Kind : uint32_t {
     AST_FILE,
     AST_SCOPE,
     AST_VALUE,
-    AST_CAST,
     AST_IDENT,
     AST_INDEX,
     AST_UNARY,
@@ -329,19 +330,15 @@ enum Ast_Kind : uint32_t {
     AST_TYPE,
     AST_VAR,
     AST_CONST,
-    AST_POINTER,
     AST_ARRAY,
     AST_FOR,
     AST_IF,
     AST_IF_NODE,
     AST_RETURN,
-    AST_BLOCK,
     AST_PASS,
     AST_LAMBDA,
     AST_LAMBDA_EXPR,
-    AST_LAMBDA_ARG,
     AST_ENUM,
-    AST_ENUM_MEMBER,
     AST_STRUCT,
     AST_UNION,
 };
@@ -371,6 +368,7 @@ struct Ast {
     Token *pos;
 
     Ast_Kind kind;
+
     Ast_Scope *parent_scope;
     Ast_Flag flags;
 };
@@ -492,8 +490,8 @@ struct Ast_If : Ast {
     Array<Ast_If_Node *> ifs;
 };
 
-struct Ast_Pass : Ast {};
-struct Ast_Break : Ast {};
+#define Ast_Pass Ast
+#define Ast_Break Ast
 
 struct Ast_For : Ast {
     Ast_Expr *init;
@@ -506,6 +504,9 @@ struct Ast_For : Ast {
     bool is_also_slice_traversal;
 };
 
+// @cleanup @refactor: return value shouldn't be a array of expressions.
+// It should be a single expression. So probably need a special type
+// for that.
 struct Ast_Lambda : Ast_Expr {
     Array<Ast_Decl *> args;
     Array<Ast_Expr *> ret;
@@ -602,7 +603,9 @@ struct Ast_Decl : Ast {
 
     uint64_t operator_overload_arguments_hash;
     Ast_Operator_Info *overload_op_info;
+
     Array<Ast_Decl *> polymorph_parameters;
+    Array<Ast_Decl *> polymorphs; // instantiated polymorphs
 
     Ast_Scope *scope;
     Ast_Expr *typespec;