From e9b99a90510309ac4f5d91d4a5138e7a84904057 Mon Sep 17 00:00:00 2001
From: ubq323 <ubq323@ubq323.website>
Date: Mon, 24 Jun 2024 20:20:06 +0100
Subject: add local variables and (let) form

---
 com.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'com.h')

diff --git a/com.h b/com.h
index 26b7494..c623d49 100644
--- a/com.h
+++ b/com.h
@@ -7,10 +7,24 @@ typedef struct _compiler Compiler;
 #include "chunk.h"
 
 
+typedef struct {
+	char *name;
+	uint8_t slot;
+} Local;
+
+#define MAX_LOCALS 256
+typedef struct _scope Scope;
+struct _scope {
+	Scope *outer;
+	uint8_t nlocals;
+	Local locals[MAX_LOCALS];
+};
+
 struct _compiler {
 	State *S;
 	Chunk *ch;
 	int stack_cur;
+	Scope *scope;
 };
 Compiler compiler_new(Compiler *outer, Chunk *ch);
 
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