From 8eca21c2e85625390a2a3b08c231e75e315980b0 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 1 Jul 2019 12:42:31 -0300
Subject: First take on constant propagation

---
 lparser.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'lparser.h')

diff --git a/lparser.h b/lparser.h
index 228d4a5c..b708de25 100644
--- a/lparser.h
+++ b/lparser.h
@@ -81,6 +81,7 @@ typedef struct expdesc {
 
 /* description of an active local variable */
 typedef struct Vardesc {
+  TValue val;  /* constant value (if variable is 'const') */
   short idx;  /* index of the variable in the Proto's 'locvars' array */
   lu_byte ro;  /* true if variable is 'const' */
 } Vardesc;
@@ -143,6 +144,7 @@ typedef struct FuncState {
 } FuncState;
 
 
+LUAI_FUNC Vardesc *luaY_getvardesc (FuncState **fs, const expdesc *e);
 LUAI_FUNC LClosure *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff,
                                  Dyndata *dyd, const char *name, int firstchar);
 
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