build.zig

const std = @import("std");

pub fn build(b: *std.build.Builder) void {
    const target = b.standardTargetOptions(.{});
    const optimize = b.standardOptimizeOption(.{});
    const use_llvm = b.option(bool, "use-llvm", "Use llvm Backend") orelse
        !(target.getCpuArch() == .x86_64 and target.getObjectFormat() == .elf);

    const exe = b.addExecutable(.{
        .name = "monkey",
        .root_source_file = .{ .path = "src/main.zig" },
        .target = target,
        .optimize = optimize,
        .use_llvm = use_llvm,
        .use_lld = use_llvm,
    });

    b.installArtifact(exe);

    const run_cmd = b.addRunArtifact(exe);
    run_cmd.step.dependOn(b.getInstallStep());

    if (b.args) |args| {
        run_cmd.addArgs(args);
    }

    const run_step = b.step("run", "Run the monkey interpreter");
    run_step.dependOn(&run_cmd.step);

    const unit_tests = b.addTest(.{
        .root_source_file = .{ .path = "src/tests.zig" },
        .target = target,
        .optimize = optimize,
    });

    const run_unit_tests = b.addRunArtifact(unit_tests);

    const tests_step = b.step("test", "Run MonkeyLang unit tests");
    tests_step.dependOn(&run_unit_tests.step);
}