scope: add is_in_scope()

Add an helper to check if a scope is included into another one.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>

2 files changed, 11 insertions, 0 deletions

diff --git a/scope.c b/scope.c
index 75ee19cf..635e0d6d 100644
--- a/scope.c
+++ b/scope.c
@@ -162,3 +162,12 @@ int is_outer_scope(struct scope *scope)
 	return 1;
 }
 
+int is_in_scope(struct scope *outer, struct scope *inner)
+{
+	while (inner != outer) {
+		if (inner == function_scope)
+			return 0;
+		inner = inner->next;
+	}
+	return 1;
+}
diff --git a/scope.h b/scope.h
index ddcb90bd..36a56d6a 100644
--- a/scope.h
+++ b/scope.h
@@ -62,4 +62,6 @@ extern void bind_scope(struct symbol *, struct scope *);
 extern void rebind_scope(struct symbol *, struct scope *);
 
 extern int is_outer_scope(struct scope *);
+extern int is_in_scope(struct scope *outer, struct scope *inner);
+
 #endif