fix std.AutoHashMap usage

src/image.zig

@@ -71,7 +71,7 @@ fn sf_tell(file: *c.SNDFILE) i64 {
 
 pub fn temporaryName(allocator: *std.mem.Allocator) ![]u8 {
     const template_start = "/temp/temp_";
-    const template = "/tmp/temp_XXXXXXXX";
+    const template = "/tmp/temp_XXXXXXXXXXX";
     var nam = try allocator.alloc(u8, template.len);
     std.mem.copy(u8, nam, template);
 

src/lang.zig

@@ -129,7 +129,20 @@ pub const Command = struct {
 pub const CommandList = std.ArrayList(*Command);
 pub const ArgList = std.ArrayList([]const u8);
 
-pub const KeywordMap = std.AutoHashMap([]const u8, CommandType);
+fn eqlu8(a: []const u8, b: []const u8) bool {
+    return std.mem.eql(u8, a, b);
+}
+
+fn hashu8(key: []const u8) u32 {
+    var hasher = std.hash.Wyhash.init(0);
+    for (key) |value| {
+        std.hash.autoHash(&hasher, value);
+    }
+
+    return @truncate(u32, hasher.final());
+}
+
+pub const KeywordMap = std.HashMap([]const u8, CommandType, hashu8, eqlu8);
 
 pub const Lang = struct {
     allocator: *std.mem.Allocator,
@@ -177,8 +190,19 @@ pub const Lang = struct {
         _ = try self.keywords.put("rotate", .Rotate);
     }
 
-    // TODO remove this once AutoHashMap is fixed.
     pub fn getCommand(self: *Lang, stmt: []const u8) ?CommandType {
+        var kv_opt = self.keywords.get(stmt);
+
+        if (kv_opt) |kv| {
+            return kv.value;
+        } else {
+            return null;
+        }
+    }
+
+    // NOTE this is fallback since std.AutoHashMap does not follow
+    // pointers anymore (in master).
+    fn oldGetCommand(self: *Lang, stmt: []const u8) ?CommandType {
         const commands = [_][]const u8{
             "noop",
             "load",