opy-rs 0.1.56

Standalone OverPy-compatible .opy implementation with parsing, tooling, and bounded Workshop compilation.
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//! Canonical-WIR lowering evidence for member angles.

use std::path::{Path, PathBuf};

use crate::Compiler;
use workshop_rs::catalog::{Catalog, Locale};
use workshop_rs::roundtrip::equivalent;
use workshop_rs::{Action, Value};

fn fixture_dir() -> PathBuf {
    Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/fixtures/corpus/synthetic/member-angle")
}

#[test]
fn horizontal_facing_angle_member_matches_the_pinned_canonical_wir() {
    let dir = fixture_dir();
    let source = std::fs::read_to_string(dir.join("source.opy")).expect("source is readable");
    let hir = crate::compile(&source, "source.opy", &dir).expect("source must resolve");
    let artifact = Compiler::new()
        .expect("compiler initializes")
        .compile_hir(&hir)
        .expect("getHorizontalFacingAngle lowers to canonical WIR");

    let oracle: serde_json::Value = serde_json::from_str(
        &std::fs::read_to_string(dir.join("oracle.json")).expect("oracle is readable"),
    )
    .expect("oracle is valid JSON");
    let oracle_wir = workshop_rs::parser::parse(
        oracle["compile"]["workshop"]
            .as_str()
            .expect("oracle workshop text is present"),
        &Catalog::builtin().expect("catalog is available"),
        &Locale::new("en-US"),
    )
    .expect("oracle workshop text parses");
    assert!(equivalent(
        &super::canonical_program(&artifact),
        &oracle_wir
    ));

    let program = super::canonical_program(&artifact);
    let rule = program.rules.first().expect("fixture has one rule");
    let Action::SetGlobalVariable { variable, value } = rule
        .actions
        .first()
        .expect("rule captures the member value")
    else {
        panic!("expected direct global assignment");
    };
    assert_eq!(variable, "horizontalAngle");
    let Value::Call { name, args } = value else {
        panic!("expected catalog member value call");
    };
    assert_eq!(name, "getHorizontalFacingAngle");
    assert_eq!(args.len(), 1);
    assert!(matches!(&args[0], Value::EventPlayer));
}

#[test]
fn horizontal_facing_angle_arity_failure_keeps_source_provenance() {
    let source = "rule \"r\":\n    @Event eachPlayer\n    @Condition eventPlayer.getHorizontalFacingAngle(1) == 0\n";
    let error = crate::compile(source, "source.opy", Path::new("."))
        .expect_err("member arity must be rejected");
    assert_eq!(error.code, "invalid-arity");
    assert_eq!(
        error
            .span
            .expect("diagnostic is source-attributed")
            .start
            .line,
        3
    );
}