From 26a2fa618f42b99b299ab1dab508d49f3914b126 Mon Sep 17 00:00:00 2001
From: pompolic <pompolic@special-circumstanc.es>
Date: Thu, 23 Jun 2022 18:57:41 +0200
Subject: [PATCH] Fix AST getting captured/printed without prompting
---
gdb-port/ast.py | 3 +++
gdb-port/commands.py | 2 ++
2 files changed, 5 insertions(+)
diff --git a/gdb-port/ast.py b/gdb-port/ast.py
index ea2ab1c..f661cf6 100644
--- a/gdb-port/ast.py
+++ b/gdb-port/ast.py
@@ -17,6 +17,9 @@ class HParseResult:
# AST is not null
# Some combinators, such as h_ignore(), return a ParseResult with no AST
def read_AST_not_null(self):
+ if self.address == 0:
+ return False
+
if not __class__.HParseResult_t_p:
__class__.HParseResult_t_p = gdb.lookup_type("HParseResult").pointer()
res = gdb.Value(self.address).cast(__class__.HParseResult_t_p)
diff --git a/gdb-port/commands.py b/gdb-port/commands.py
index 8d906f2..90502da 100644
--- a/gdb-port/commands.py
+++ b/gdb-port/commands.py
@@ -195,6 +195,8 @@ class HammerParseStepToResult(FlowControlWithPrint):
if gdb.selected_inferior().pid > 0:
gdb.execute("continue")
+ top_level_parse.clear_ast_stack_index()
+
self.conditionally_print_backtrace()
HammerParseStepToResult()
--
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