rebindgen.nu

let fmod_engine = registry query 'Software\FMOD Studio API Windows' | get value
let bindgen_ver = ^bindgen --version | str trim

def do-bindgen --wrapped [--disable-header-comment ...args] {
    let header = if $disable_header_comment { [] } else { [
        --raw-line $"/* automatically @generated by rust-($bindgen_ver) */"
        --raw-line "/* Copyright (c), Firelight Technologies Pty, Ltd. 2004-2024. */"
    ]}
    let flags = [
        --no-layout-tests
        --no-recursive-allowlist
        --ctypes-prefix ::std::ffi
        --no-convert-floats
        --no-prepend-enum-name
        --disable-header-comment
        --sort-semantically
        --merge-extern-blocks
    ]
    do -c { bindgen ...$flags ...$header ...$args }
        | str replace --all 'extern "C"' 'extern "system"'
        | str replace --all --regex '(?s)extern "system" (fn\([^)]*\.\.\.[^)]*\))' 'extern "C" $1'
        | str replace --all 'type_' 'r#type'
        | str replace --all '__bindgen_anon_1' 'payload'
        | str replace --all '__bindgen_ty_1' '_PAYLOAD'
}

do -c {||
    cd crates/fmod-core-sys/inc

    cp ($fmod_engine | path join api/core/inc/*.h) .
    cp ($fmod_engine | path join '../FMOD Studio API Android/api/core/inc/fmod_android.h') .
    cp ($fmod_engine | path join '../FMOD Studio API iOS/api/core/inc/fmod_iOS.h') .
    cp ($fmod_engine | path join '../FMOD Studio API Universal Windows Platform/api/core/inc/fmod_uwp.h') .

    do-bindgen fmod.h | save --force bindings.rs
    do-bindgen --disable-header-comment fmod_android.h | save --append bindings.rs
    do-bindgen --disable-header-comment fmod_ios.h | save --append bindings.rs
    do-bindgen --disable-header-comment fmod_uwp.h | save --append bindings.rs
}

do -c {||
    cd crates/fmod-studio-sys/inc
    cp ($fmod_engine | path join api/studio/inc/*.h) .

    let studio_fixup = [
        # blocklist fmod-core-sys items
        --allowlist-file 'fmod_studio.h'
        --allowlist-file 'fmod_studio_common.h'
        --allowlist-item 'FMOD_STUDIO_.*' # this shouldn't be needed but is?
        # in a union, so needs to be allowlisted
        --allowlist-type FMOD_BOOL
        # re-add derives skipped due to blocklisting
        --with-derive-custom 'FMOD_STUDIO_BANK_INFO=Debug,Copy,Clone'
        --with-derive-custom 'FMOD_STUDIO_PARAMETER_DESCRIPTION=Debug,Copy,Clone'
        --with-derive-custom 'FMOD_STUDIO_TIMELINE_NESTED_BEAT_PROPERTIES=Debug,Copy,Clone'
        --with-derive-custom 'FMOD_STUDIO_SOUND_INFO=Debug,Copy,Clone'
    ]
    
    do-bindgen fmod_studio.h ...$studio_fixup
        | str replace --all --regex --multiline '^.*type FMOD_BOOL.*$\n' ''
        | save --force bindings.rs
    
}

do -c {||
    cd crates/fmod-fsbank-sys/inc
    cp ($fmod_engine | path join api/fsbank/inc/*.h) .

    do-bindgen fsbank.h | save --force bindings.rs
}