examples/rust/build.sh



#!/usr/bin/env bash
cd "$(dirname "$0")" || exit

bins=("host_fn" "hello" "fibonacci" "print" "tinywasm" "argon2id")
exclude_wat=("tinywasm")
out_dir="./target/wasm32-unknown-unknown/wasm"
dest_dir="out"

rust_features="+simd128,+reference-types,+bulk-memory,+mutable-globals,+multivalue,+sign-ext,+nontrapping-fptoint"
wasmopt_features="--enable-simd --enable-tail-call --enable-extended-const --enable-reference-types --enable-bulk-memory --enable-mutable-globals --enable-multivalue --enable-sign-ext --enable-nontrapping-float-to-int --duplicate-function-elimination"

# ensure out dir exists
mkdir -p "$dest_dir"

# build no_std
cargo build --target wasm32-unknown-unknown --package rust-wasm-examples --profile=wasm --bin tinywasm_no_std --no-default-features
cp "$out_dir/tinywasm_no_std.wasm" "$dest_dir/"

for bin in "${bins[@]}"; do
    RUSTFLAGS="-Zlocation-detail=none -Zfmt-debug=none -C target-feature=$rust_features -C panic=abort" cargo build -Z build-std=std,panic_abort -Z build-std-features="optimize_for_size" --target wasm32-unknown-unknown --package rust-wasm-examples --profile=wasm --bin "$bin"

    cp "$out_dir/$bin.wasm" "$dest_dir/"
    wasm-opt "$dest_dir/$bin.wasm" -o "$dest_dir/$bin.opt.wasm" -O3 -Oz $wasmopt_features

    if [[ ! " ${exclude_wat[@]} " =~ " $bin " ]]; then
        wasm2wat "$dest_dir/$bin.wasm" -o "$dest_dir/$bin.wat"
    fi
done