# Copyright 2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

CRATES="
	addr2line@0.25.1
	ahash@0.8.12
	aho-corasick@1.1.4
	alloc-no-stdlib@2.0.4
	alloc-stdlib@0.2.2
	allocator-api2@0.2.21
	ambient-authority@0.0.2
	android_system_properties@0.1.5
	anstream@0.6.21
	anstyle-parse@0.2.7
	anstyle-query@1.1.4
	anstyle-wincon@3.0.10
	anstyle@1.0.13
	anyhow@1.0.100
	arbitrary-json@0.1.1
	arbitrary@1.4.2
	ast_node@4.0.0
	async-trait@0.1.89
	autocfg@1.5.0
	base64-simd@0.8.0
	base64@0.22.1
	better_scoped_tls@1.0.1
	bindgen@0.72.1
	bitflags@2.10.0
	bitvec@1.0.1
	block-buffer@0.10.4
	brotli-decompressor@5.0.0
	brotli@8.0.2
	bumpalo@3.19.0
	byteorder@1.5.0
	bytes-str@0.2.7
	bytes@1.10.1
	camino@1.2.1
	cap-fs-ext@3.4.5
	cap-net-ext@3.4.5
	cap-primitives@3.4.5
	cap-rand@3.4.5
	cap-std@3.4.5
	cap-time-ext@3.4.5
	cargo-platform@0.1.9
	cargo_metadata@0.19.2
	cc@1.2.44
	cexpr@0.6.0
	cfg-if@1.0.4
	clang-sys@1.8.1
	clap@4.5.51
	clap_builder@4.5.51
	clap_derive@4.5.49
	clap_lex@0.7.6
	cobs@0.3.0
	codespan-reporting@0.13.1
	colorchoice@1.0.4
	console@0.15.11
	convert_case@0.8.0
	core-foundation-sys@0.8.7
	cpp_demangle@0.4.5
	cpufeatures@0.2.17
	cranelift-assembler-x64-meta@0.123.2
	cranelift-assembler-x64@0.123.2
	cranelift-bforest@0.123.2
	cranelift-bitset@0.123.2
	cranelift-codegen-meta@0.123.2
	cranelift-codegen-shared@0.123.2
	cranelift-codegen@0.123.2
	cranelift-control@0.123.2
	cranelift-entity@0.123.2
	cranelift-frontend@0.123.2
	cranelift-isle@0.123.2
	cranelift-native@0.123.2
	cranelift-srcgen@0.123.2
	crc32fast@1.5.0
	crossbeam-deque@0.8.6
	crossbeam-epoch@0.9.18
	crossbeam-utils@0.8.21
	crypto-common@0.1.6
	cxx-build@1.0.187
	cxx@1.0.187
	cxxbridge-cmd@1.0.187
	cxxbridge-flags@1.0.187
	cxxbridge-macro@1.0.187
	darling@0.20.11
	darling_core@0.20.11
	darling_macro@0.20.11
	data-encoding@2.9.0
	debugid@0.8.0
	derive_builder@0.20.2
	derive_builder_core@0.20.2
	derive_builder_macro@0.20.2
	digest@0.10.7
	directories-next@2.0.0
	dirs-sys-next@0.1.2
	displaydoc@0.2.5
	either@1.15.0
	embedded-io@0.4.0
	embedded-io@0.6.1
	encode_unicode@1.0.0
	encoding_rs@0.8.35
	env_logger@0.8.4
	equivalent@1.0.2
	errno@0.3.14
	fallible-iterator@0.2.0
	fallible-iterator@0.3.0
	fastrand@2.3.0
	fd-lock@4.0.4
	find-msvc-tools@0.1.4
	float-cmp@0.10.0
	fnv@1.0.7
	foldhash@0.1.5
	foldhash@0.2.0
	form_urlencoded@1.2.2
	from_variant@2.0.2
	fs-set-times@0.20.3
	funty@2.0.0
	futures-channel@0.3.31
	futures-core@0.3.31
	futures-io@0.3.31
	futures-sink@0.3.31
	futures-task@0.3.31
	futures-util@0.3.31
	futures@0.3.31
	fxhash@0.2.1
	fxprof-processed-profile@0.6.0
	generic-array@0.14.9
	getrandom@0.2.16
	getrandom@0.3.4
	gimli@0.26.2
	gimli@0.32.3
	glob@0.3.3
	halfbrown@0.4.0
	hashbrown@0.12.3
	hashbrown@0.14.5
	hashbrown@0.15.5
	hashbrown@0.16.0
	heck@0.4.1
	heck@0.5.0
	hermit-abi@0.5.2
	hstr@3.0.3
	iana-time-zone-haiku@0.1.2
	iana-time-zone@0.1.64
	icu_collections@2.1.1
	icu_locale_core@2.1.1
	icu_normalizer@2.1.1
	icu_normalizer_data@2.1.1
	icu_properties@2.1.1
	icu_properties_data@2.1.1
	icu_provider@2.1.1
	id-arena@2.2.1
	ident_case@1.0.1
	idna@1.1.0
	idna_adapter@1.2.1
	if_chain@1.0.3
	indexmap@1.9.3
	indexmap@2.12.0
	insta@1.43.2
	io-extras@0.18.4
	io-lifetimes@2.0.4
	ipnet@2.11.0
	is-macro@0.3.7
	is_terminal_polyfill@1.70.2
	itertools@0.13.0
	itertools@0.14.0
	itoa@1.0.15
	ittapi-sys@0.4.0
	ittapi@0.4.0
	jobserver@0.1.34
	js-sys@0.3.82
	leb128@0.2.5
	leb128fmt@0.1.0
	libc@0.2.177
	libfuzzer-sys@0.4.10
	libloading@0.8.9
	libm@0.2.15
	libredox@0.1.10
	link-cplusplus@1.0.12
	linux-raw-sys@0.11.0
	linux-raw-sys@0.4.15
	litemap@0.8.1
	log@0.4.28
	mach2@0.4.3
	maybe-owned@0.3.4
	memchr@2.7.6
	memfd@0.6.5
	minimal-lexical@0.2.1
	mio@1.1.0
	new_debug_unreachable@1.0.6
	nom@7.1.3
	num-bigint@0.4.6
	num-integer@0.1.46
	num-traits@0.2.19
	num_cpus@1.17.0
	object@0.37.3
	once_cell@1.21.3
	once_cell_polyfill@1.70.2
	outref@0.5.2
	par-core@2.0.0
	paste@1.0.15
	percent-encoding@2.3.2
	phf@0.11.3
	phf_generator@0.11.3
	phf_macros@0.11.3
	phf_shared@0.11.3
	pin-project-lite@0.2.16
	pin-utils@0.1.0
	pkg-config@0.3.32
	postcard@1.1.3
	potential_utf@0.1.4
	ppv-lite86@0.2.21
	prettyplease@0.2.37
	proc-macro-crate@3.4.0
	proc-macro2@1.0.103
	pulley-interpreter@36.0.2
	pulley-macros@36.0.2
	quickcheck@1.0.3
	quote@1.0.41
	r-efi@5.3.0
	radium@0.7.0
	rand@0.8.5
	rand_chacha@0.3.1
	rand_core@0.6.4
	rayon-core@1.13.0
	rayon@1.11.0
	redox_users@0.4.6
	ref-cast-impl@1.0.25
	ref-cast@1.0.25
	regalloc2@0.12.2
	regex-automata@0.4.13
	regex-syntax@0.8.8
	regex@1.12.2
	relative-path@2.0.1
	rmp-serde@1.3.0
	rmp@0.8.14
	rquickjs-core@0.10.0
	rquickjs-macro@0.10.0
	rquickjs-sys@0.10.0
	rquickjs@0.10.0
	rustc-demangle@0.1.26
	rustc-hash@2.1.1
	rustix-linux-procfs@0.1.1
	rustix@0.38.44
	rustix@1.1.2
	rustversion@1.0.22
	ryu-js@1.0.2
	ryu@1.0.20
	scoped-tls@1.0.1
	scratch@1.0.9
	semver@1.0.27
	seq-macro@0.3.6
	serde-transcode@1.1.1
	serde@1.0.228
	serde_core@1.0.228
	serde_derive@1.0.228
	serde_json@1.0.145
	serde_spanned@0.6.9
	sha2@0.10.9
	shlex@1.3.0
	simd-json@0.17.0
	simdutf8@0.1.5
	similar@2.7.0
	siphasher@0.3.11
	siphasher@1.0.1
	smallvec@1.15.1
	smartstring@1.0.1
	socket2@0.6.1
	stable_deref_trait@1.2.1
	static_assertions@1.1.0
	string_enum@1.0.2
	strsim@0.11.1
	strum@0.24.1
	strum_macros@0.24.3
	swc_allocator@4.0.1
	swc_atoms@8.0.2
	swc_common@16.0.0
	swc_core@46.0.3
	swc_ecma_ast@17.0.0
	swc_ecma_parser@26.0.1
	swc_ecma_transforms_base@29.0.0
	swc_ecma_utils@23.0.0
	swc_ecma_visit@17.0.0
	swc_eq_ignore_macros@1.0.1
	swc_macros_common@1.0.1
	swc_sourcemap@9.3.4
	swc_visit@2.0.1
	syn@1.0.109
	syn@2.0.109
	synstructure@0.13.2
	system-interface@0.27.3
	tap@1.0.1
	target-lexicon@0.13.3
	tempfile@3.23.0
	termcolor@1.4.1
	thiserror-impl@1.0.69
	thiserror-impl@2.0.17
	thiserror@1.0.69
	thiserror@2.0.17
	tinystr@0.8.2
	tokio@1.48.0
	toml@0.8.23
	toml_datetime@0.6.11
	toml_datetime@0.7.3
	toml_edit@0.22.27
	toml_edit@0.23.7
	toml_parser@1.0.4
	toml_write@0.1.2
	tracing-attributes@0.1.30
	tracing-core@0.1.34
	tracing@0.1.41
	triomphe@0.1.15
	typenum@1.19.0
	unicode-id-start@1.4.0
	unicode-ident@1.0.22
	unicode-segmentation@1.12.0
	unicode-width@0.1.14
	unicode-width@0.2.2
	unicode-xid@0.2.6
	url@2.5.7
	utf8_iter@1.0.4
	utf8parse@0.2.2
	uuid@1.18.1
	value-trait@0.12.1
	vergen-lib@0.1.6
	vergen@9.0.6
	version_check@0.9.5
	vsimd@0.8.0
	walrus-macro@0.24.0
	walrus@0.24.4
	wasi@0.11.1+wasi-snapshot-preview1
	wasip2@1.0.1+wasi-0.2.4
	wasm-bindgen-macro-support@0.2.105
	wasm-bindgen-macro@0.2.105
	wasm-bindgen-shared@0.2.105
	wasm-bindgen@0.2.105
	wasm-encoder@0.236.1
	wasm-encoder@0.238.1
	wasm-encoder@0.240.0
	wasm-metadata@0.240.0
	wasm-opt-cxx-sys@0.116.0
	wasm-opt-sys@0.116.0
	wasm-opt@0.116.1
	wasmparser@0.236.1
	wasmparser@0.238.1
	wasmparser@0.240.0
	wasmprinter@0.236.1
	wasmprinter@0.240.0
	wasmtime-environ@36.0.2
	wasmtime-internal-asm-macros@36.0.2
	wasmtime-internal-cache@36.0.2
	wasmtime-internal-component-macro@36.0.2
	wasmtime-internal-component-util@36.0.2
	wasmtime-internal-cranelift@36.0.2
	wasmtime-internal-fiber@36.0.2
	wasmtime-internal-jit-debug@36.0.2
	wasmtime-internal-jit-icache-coherence@36.0.2
	wasmtime-internal-math@36.0.2
	wasmtime-internal-slab@36.0.2
	wasmtime-internal-unwinder@36.0.2
	wasmtime-internal-versioned-export-macros@36.0.2
	wasmtime-internal-winch@36.0.2
	wasmtime-internal-wit-bindgen@36.0.2
	wasmtime-wasi-io@36.0.2
	wasmtime-wasi@36.0.2
	wasmtime@36.0.2
	wast@240.0.0
	wast@35.0.2
	wat@1.240.0
	wiggle-generate@36.0.2
	wiggle-macro@36.0.2
	wiggle@36.0.2
	winapi-i686-pc-windows-gnu@0.4.0
	winapi-util@0.1.11
	winapi-x86_64-pc-windows-gnu@0.4.0
	winapi@0.3.9
	winch-codegen@36.0.2
	windows-core@0.62.2
	windows-implement@0.60.2
	windows-interface@0.59.3
	windows-link@0.2.1
	windows-result@0.4.1
	windows-strings@0.5.1
	windows-sys@0.59.0
	windows-sys@0.60.2
	windows-sys@0.61.2
	windows-targets@0.52.6
	windows-targets@0.53.5
	windows_aarch64_gnullvm@0.52.6
	windows_aarch64_gnullvm@0.53.1
	windows_aarch64_msvc@0.52.6
	windows_aarch64_msvc@0.53.1
	windows_i686_gnu@0.52.6
	windows_i686_gnu@0.53.1
	windows_i686_gnullvm@0.52.6
	windows_i686_gnullvm@0.53.1
	windows_i686_msvc@0.52.6
	windows_i686_msvc@0.53.1
	windows_x86_64_gnu@0.52.6
	windows_x86_64_gnu@0.53.1
	windows_x86_64_gnullvm@0.52.6
	windows_x86_64_gnullvm@0.53.1
	windows_x86_64_msvc@0.52.6
	windows_x86_64_msvc@0.53.1
	winnow@0.7.13
	winx@0.36.4
	wit-bindgen-core@0.47.0
	wit-bindgen-rust-macro@0.47.0
	wit-bindgen-rust@0.47.0
	wit-bindgen@0.46.0
	wit-bindgen@0.47.0
	wit-component@0.240.0
	wit-parser@0.236.1
	wit-parser@0.240.0
	witx@0.9.1
	wizer@10.0.0
	writeable@0.6.2
	wyz@0.5.1
	yoke-derive@0.8.1
	yoke@0.8.1
	zerocopy-derive@0.8.27
	zerocopy@0.8.27
	zerofrom-derive@0.1.6
	zerofrom@0.1.6
	zerotrie@0.2.3
	zerovec-derive@0.11.2
	zerovec@0.11.5
	zstd-safe@7.2.4
	zstd-sys@2.0.16+zstd.1.5.7
	zstd@0.13.3
"

RUST_MIN_VER="1.85.0"
RUST_REQ_USE="rust_sysroots_wasm"

inherit cargo

DESCRIPTION="JavaScript to WebAssembly toolchain"
HOMEPAGE="https://github.com/bytecodealliance/javy"
SRC_URI="
	https://github.com/bytecodealliance/javy/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz
	${CARGO_CRATE_URIS}
"

LICENSE="Apache-2.0-with-LLVM-exceptions"
# Dependent crate licenses
LICENSE+="
	Apache-2.0 BSD ISC MIT MPL-2.0 Unicode-3.0 ZLIB
	|| ( Apache-2.0 MIT )
"
SLOT="0"
KEYWORDS="~amd64"

# clang is needed for cross-compiling C code to wasm32-wasip1 (QuickJS in
# rquickjs-sys) and for building binaryen C++ via wasm-opt-sys/cxx.
# rust-bin is needed because Gentoo's dev-lang/rust patches the compiler
# identity (adding "(gentoo)"), making prebuilt wasm32-wasip1 stdlib
# ABI-incompatible. rust-bin uses upstream rustc which is compatible.
BDEPEND="
	llvm-core/clang
	dev-lang/rust-bin
"

QA_FLAGS_IGNORED="usr/bin/javy"

# Download wasm32-wasip1 stdlib at build time since the URL depends on
# the installed rust-bin version.
RESTRICT="network-sandbox"

src_unpack() {
	cargo_src_unpack

	# Find rust-bin installation and download matching wasm32-wasip1 stdlib.
	# Gentoo's dev-lang/rust cannot use prebuilt wasm targets due to ABI
	# mismatch (the "(gentoo)" compiler identity). rust-bin is upstream
	# rustc and IS compatible with the prebuilt stdlib.
	local rustbin_dir
	rustbin_dir=$(find /opt -maxdepth 1 -name "rust-bin-*" -type d | sort -V | tail -1) \
		|| die "Could not find rust-bin installation"
	[[ -n "${rustbin_dir}" ]] || die "dev-lang/rust-bin not found in /opt"

	local rustbin_ver="${rustbin_dir##*rust-bin-}"
	local rustbin_sysroot="${rustbin_dir}"

	if [[ ! -d "${rustbin_sysroot}/lib/rustlib/wasm32-wasip1" ]]; then
		einfo "Downloading wasm32-wasip1 stdlib for rust-bin ${rustbin_ver}..."
		wget -q "https://static.rust-lang.org/dist/rust-std-${rustbin_ver}-wasm32-wasip1.tar.xz" \
			-O "${T}/rust-std-wasm32-wasip1.tar.xz" \
			|| die "Failed to download wasm32-wasip1 stdlib"
		tar -xf "${T}/rust-std-wasm32-wasip1.tar.xz" -C "${T}" || die
		cp -a "${T}/rust-std-${rustbin_ver}-wasm32-wasip1/rust-std-wasm32-wasip1/lib/rustlib/wasm32-wasip1" \
			"${WORKDIR}/wasm32-wasip1-libs" || die
	else
		cp -a "${rustbin_sysroot}/lib/rustlib/wasm32-wasip1" \
			"${WORKDIR}/wasm32-wasip1-libs" || die
	fi

	# Build a local sysroot overlay using rust-bin as the base, with the
	# downloaded wasm32-wasip1 target added.
	local wasi_sysroot="${WORKDIR}/wasi-sysroot"
	mkdir -p "${wasi_sysroot}/lib/rustlib" || die
	# Symlink everything from rust-bin's sysroot
	local f
	for f in "${rustbin_sysroot}/lib/rustlib"/*; do
		ln -snf "${f}" "${wasi_sysroot}/lib/rustlib/${f##*/}" || die
	done
	for f in "${rustbin_sysroot}/lib/"*.so; do
		[[ -e "${f}" ]] || continue
		ln -snf "${f}" "${wasi_sysroot}/lib/" || die
	done
	# Add wasm32-wasip1 target (real copy, overriding any symlink)
	rm -f "${wasi_sysroot}/lib/rustlib/wasm32-wasip1"
	cp -a "${WORKDIR}/wasm32-wasip1-libs" \
		"${wasi_sysroot}/lib/rustlib/wasm32-wasip1" || die
}

src_compile() {
	local wasi_sysroot="${WORKDIR}/wasi-sysroot"

	# Build the default plugin for wasm32-wasip1.
	# Uses rust-bin's rustc (via --sysroot) because Gentoo's patched rustc
	# is ABI-incompatible with the prebuilt wasm32-wasip1 stdlib.
	(
		unset CARGO_BUILD_RUSTFLAGS CARGO_ENCODED_RUSTFLAGS RUSTFLAGS
		unset CARGO_BUILD_TARGET
		export CARGO_PROFILE_RELEASE_LTO=false
		export CARGO_PROFILE_RELEASE_STRIP=none
		export CC_wasm32_wasip1=clang
		local rustbin_dir
		rustbin_dir=$(find /opt -maxdepth 1 -name "rust-bin-*" -type d | sort -V | tail -1)
		export RUSTC="${rustbin_dir}/bin/rustc"
		export CARGO="${rustbin_dir}/bin/cargo"
		"${CARGO}" build -p javy-plugin --target wasm32-wasip1 --release
	) || die "plugin build failed"

	# Build the CLI binary with the system Rust (Gentoo's dev-lang/rust).
	# Its build.rs picks up and processes the wasm plugin.
	local -x CARGO_PROFILE_RELEASE_LTO=off
	cargo_src_compile -p javy-cli
}

src_install() {
	dobin "$(cargo_target_dir)/javy"
	dodoc README.md
}