pub fn fatal(comptime format: []const u8, args: anytype) noreturn
pub fn fatal(comptime format: []const u8, args: anytype) noreturn { var buf: [500]u8 = undefined; const line = std.fmt.bufPrint(&buf, format, args) catch l: { buf[buf.len - 3 ..][0..3].* = "...".*; break :l &buf; }; js.panic(line.ptr, line.len); }