motiejus/zig

commit 010c58e3038ad9ca898b4c6e76877e4e7c43968f (tree)
parent 51682717d773aa4bdee89bc67cab08dc9b4bcc15
Author: Vexu <git@vexu.eu>
Date:   Sat, 30 May 2020 23:07:04 +0300

fix zig fmt out of bounds on empty file

Diffstat:
M
lib/std/zig/parser_test.zig
 | 
6
++++++
M
lib/std/zig/render.zig
 | 
2
++

2 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/lib/std/zig/parser_test.zig b/lib/std/zig/parser_test.zig
@@ -223,6 +223,12 @@ test "recovery: missing block after for/while loops" {
     });
 }
 
+test "zig fmt: empty file" {
+    try testCanonical(
+        \\
+    );
+}
+
 test "zig fmt: if statment" {
     try testCanonical(
         \\test "" {
diff --git a/lib/std/zig/render.zig b/lib/std/zig/render.zig
@@ -82,6 +82,8 @@ fn renderRoot(
     var start_col: usize = 0;
     var decl_i: ast.NodeIndex = 0;
     const root_decls = tree.root_node.decls();
+
+    if (root_decls.len == 0) return;
     while (true) {
         var decl = root_decls[decl_i];