Wrapper: Allow null src_lengths to be passed to shaderSource (#17)

Fixes #13

Author: hazeycode

src/wrapper.zig

@@ -2762,16 +2762,22 @@ pub fn Wrap(comptime bindings: anytype) type {
  // string: [*c]const [*c]const Char,
  // length: [*c]const Int,
  // ) callconv(.C) void = undefined;
- pub fn shaderSource(shader: Shader, src_ptrs: []const [*:0]const u8, src_lengths: []const u32) void {
+ pub fn shaderSource(
+ shader: Shader,
+ src_ptrs: []const [*:0]const u8,
+ maybe_src_lengths: ?[]const u32,
+ ) void {
  assert(shader != Shader.invalid);
  assert(src_ptrs.len > 0);
  assert(src_ptrs.len <= std.math.maxInt(u32));
- assert(src_ptrs.len == src_lengths.len);
+ if (maybe_src_lengths) |src_lengths| {
+ assert(src_ptrs.len == src_lengths.len);
+ }
  bindings.shaderSource(
  @intFromEnum(shader),
  @as(Sizei, @bitCast(@as(u32, @intCast(src_ptrs.len)))),
  @as([*c]const [*c]const Char, @ptrCast(src_ptrs)),
- @as([*c]const Int, @ptrCast(src_lengths.ptr)),
+ if (maybe_src_lengths) |src_lengths| @as([*c]const Int, @ptrCast(src_lengths.ptr)) else null,
  );
  }