From d35eadb22c78b57d804c568bf6d5cf1643ff31d1 Mon Sep 17 00:00:00 2001
From: Jussi Saurio <jussi.saurio@gmail.com>
Date: Sun, 5 Jan 2025 13:46:30 +0200
Subject: [PATCH] preallocate capacity for yystack (by krishvishal)

---
 vendored/sqlite3-parser/third_party/lemon/lemon.c   | 2 ++
 vendored/sqlite3-parser/third_party/lemon/lempar.rs | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/vendored/sqlite3-parser/third_party/lemon/lemon.c b/vendored/sqlite3-parser/third_party/lemon/lemon.c
index d81d8e8a7..dec7efd25 100644
--- a/vendored/sqlite3-parser/third_party/lemon/lemon.c
+++ b/vendored/sqlite3-parser/third_party/lemon/lemon.c
@@ -4518,6 +4518,8 @@ void ReportTable(
   print_stack_union(out,lemp,&lineno);
   if( lemp->stacksize ){
     fprintf(out,"const YYSTACKDEPTH: usize = %s;\n",lemp->stacksize);  lineno++;
+  } else {
+    fprintf(out, "const YYSTACKDEPTH: usize = 128;\n"); lineno++;
   }
   if( lemp->errsym && lemp->errsym->useCnt ){
     fprintf(out,"const YYERRORSYMBOL: YYCODETYPE = %d;\n",lemp->errsym->index); lineno++;
diff --git a/vendored/sqlite3-parser/third_party/lemon/lempar.rs b/vendored/sqlite3-parser/third_party/lemon/lempar.rs
index 8a0bef7cf..4bee616f4 100644
--- a/vendored/sqlite3-parser/third_party/lemon/lempar.rs
+++ b/vendored/sqlite3-parser/third_party/lemon/lempar.rs
@@ -285,7 +285,7 @@ impl yyParser<'_> {
             yyidx: 0,
             #[cfg(feature = "YYTRACKMAXSTACKDEPTH")]
             yyhwm: 0,
-            yystack: Vec::new(),
+            yystack: Vec::with_capacity(YYSTACKDEPTH),
             //#[cfg(not(feature = "YYNOERRORRECOVERY"))]
             yyerrcnt: -1,
 %%               /* Optional %extra_context store */