fix some analyzer warnings

2 files changed, 15 insertions, 3 deletions

diff --git a/src/actualize.c b/src/actualize.c
index e17305c..2cb2f7a 100644
--- a/src/actualize.c
+++ b/src/actualize.c
@@ -344,8 +344,8 @@ static int analyze_visibility(struct scope *scope, struct ast *node)
 	case AST_IMPORT: {
 		const char *file = import_file(node);
 		int ret = process_file(&scope,
-		                    (int)ast_flags(node, AST_FLAG_PUBLIC),
-		                    file);
+		                       (int)ast_flags(node, AST_FLAG_PUBLIC),
+		                       file);
 
 		if (ret == 0)
 			return 0;
@@ -832,7 +832,7 @@ static int expand_chain(struct ast *expd, struct ast *params,
 }
 
 static struct ast *chain_graft(struct ast *exists, struct ast *def,
-		struct ast *params, struct type *types)
+                               struct ast *params, struct type *types)
 {
 	if (same_src(exists, def))
 		return exists;
diff --git a/src/ast.c b/src/ast.c
index 5cfafdd..daf393e 100644
--- a/src/ast.c
+++ b/src/ast.c
@@ -76,6 +76,9 @@ static struct ast *create_empty_ast()
 	}
 
 	struct ast *n = calloc(1, sizeof(struct ast));
+	if (!n)
+		return NULL;
+
 	/* just to be safe */
 	n->k = AST_EMPTY;
 	vect_append(struct ast *, nodes, &n);
@@ -89,6 +92,9 @@ static struct type *create_empty_type()
 	}
 
 	struct type *n = calloc(1, sizeof(struct type));
+	if (!n)
+		return NULL;
+
 	/* just to be safe */
 	n->k = TYPE_VOID;
 	n->size = -1;
@@ -393,6 +399,9 @@ struct ast *clone_ast(struct ast *n)
 
 	assert(n->k);
 	struct ast *new = create_empty_ast();
+	if (!new)
+		return NULL;
+
 	new->scope = n->scope;
 	new->loc = n->loc;
 	new->k = n->k;
@@ -435,6 +444,9 @@ struct type *clone_type(struct type *n)
 
 	assert(n->k);
 	struct type *new = create_empty_type();
+	if (!new)
+		return NULL;
+
 	new->scope = n->scope;
 	new->loc = n->loc;
 	new->k = n->k;