# set -euo pipefail

assert_eq() {
   expected="$1"
   actual="$2"
   if [ "$expected" != "$actual" ]; then
       echo "assert failed: expected '$expected', got '$actual'"
       exit 1
   fi
}

verify_expr() {
    ./main "$1"
    clang out.s -o test
    ./test
    assert_eq $? $2
}

if [[ ! -e build ]]; then
    mkdir build
fi
cd build
clang -o meta $(realpath ../meta.c) -g -Wall -Wextra -Wshadow -fdiagnostics-absolute-paths
./meta > ../meta_gen.c
clang -o main $(realpath ../main.c) -g -Wall -Wextra -Wshadow -fdiagnostics-absolute-paths

./main
verify_expr "2+1-1" 2
verify_expr "(2+1-1)*3" 6


echo done