From c1bea102df3f2907f345b89ff0f66f5055ac4767 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Sun, 18 Aug 2019 06:25:52 +0200
Subject: Add extern funcs, parameter registers, fix asm_rm RSP bug

---
 include/ast.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'include/ast.h')

diff --git a/include/ast.h b/include/ast.h
index 1198a98..bdab6c3 100644
--- a/include/ast.h
+++ b/include/ast.h
@@ -20,7 +20,6 @@
 
 typedef struct Ast Ast;
 typedef struct FunctionParameter FunctionParameter;
-typedef struct FunctionSignature FunctionSignature;
 typedef struct FunctionCall FunctionCall;
 typedef struct StructDecl StructDecl;
 typedef struct StructField StructField;
@@ -87,6 +86,7 @@ typedef enum {
 
 typedef struct {
     union {
+        void *data;
         LhsExpr *lhs_expr;
         FunctionSignature *func_sig;
     } value;
@@ -107,6 +107,7 @@ typedef enum {
 
 typedef struct {
     union {
+        void *data;
         LhsExpr *lhs_expr;
         FunctionParameter *func_param;
     } value;
@@ -218,6 +219,7 @@ struct LhsExpr {
     BufferView var_name;
     VariableType type;
     nullable Ast *rhs_expr;
+    u16 extern_index; /* Index to extern func, extern variable, etc; if applicable */
 };
 
 #define LHS_EXPR_IS_EXTERN(expr)    ((expr)->decl_flags & DECL_FLAG_EXTERN)
@@ -297,6 +299,8 @@ CHECK_RESULT int function_signature_init(FunctionSignature *self, ArenaAllocator
 CHECK_RESULT int function_signature_add_parameter(FunctionSignature *self, const FunctionParameter *param);
 /* Adds a copy of @return_type to the function signature return type list */
 CHECK_RESULT int function_signature_add_return_type(FunctionSignature *self, const VariableType *return_type);
+CHECK_RESULT bool function_signature_equals(FunctionSignature *self, FunctionSignature *other);
+
 void function_parameter_init(FunctionParameter *self);
 CHECK_RESULT int funcdecl_init(FunctionDecl *self, FunctionSignature *signature, Scope *parent, ArenaAllocator *allocator);
 CHECK_RESULT int funccall_init(FunctionCall *self, BufferView name, ArenaAllocator *allocator);
-- 
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