add CoreMidi support

Signed-off-by: Stephen Gutekanst <[email protected]>

core_midi_manual.zig

@@ -0,0 +1,6 @@
+const c = @import("../c.zig");
+const cf = @import("../core_foundation/cf.zig");
+const ns = @import("../foundation/ns.zig");
+
+// ------------------------------------------------------------------------------------------------
+// Types

generate.sh

@@ -16,4 +16,13 @@ zig run mach-objc-generator/src/main.zig -- --framework AVFAudio >> src/avf_audi
 zig fmt src/avf_audio/avaudio.zig
 rm headers.json headers.m
 
+echo "
+#include <CoreMIDI/MidiServices.h>
+" > headers.m
+clang headers.m -Xclang -ast-dump=json -fsyntax-only > headers.json
+cat core_midi_manual.zig > src/core_midi/coremidi.zig
+zig run mach-objc-generator/src/main.zig -- --framework CoreMIDI >> src/core_midi/coremidi.zig
+zig fmt src/core_midi/coremidi.zig
+rm headers.json headers.m
+
 rm -rf mach-objc-generator