feat(joinir): Phase 30.x jsonir v0 snapshot tests
Implement JSON snapshot testing for JoinIR regression detection. Implementation: - tests/fixtures/joinir/v0_*.jsonir: 6 snapshot fixtures for minimal JoinIR cases - src/tests/joinir_json_min.rs: Added 6 snapshot comparison tests Fixtures: - v0_skip_ws_min.jsonir (1338 bytes) - v0_funcscanner_trim_min.jsonir (4484 bytes) - v0_funcscanner_append_defs_min.jsonir (988 bytes) - v0_stage1_usingresolver_min.jsonir (987 bytes) - v0_stageb_body_min.jsonir (1074 bytes) - v0_stageb_funcscanner_min.jsonir (962 bytes) Usage: # Run snapshot tests NYASH_JOINIR_SNAPSHOT_TEST=1 cargo test --release joinir_json_v0_ # Regenerate fixtures (after intentional changes) NYASH_JOINIR_SNAPSHOT_TEST=1 NYASH_JOINIR_SNAPSHOT_GENERATE=1 cargo test --release joinir_json_v0_ Purpose: - Fix current JoinIR shape as v0 baseline (pre-generic state) - Detect unintended regressions during genericization - Allow intentional fixture updates when design changes 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
nyash-codex
@ -230,3 +230,217 @@ fn test_all_instruction_types_json() {
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eprintln!("[joinir/json] all_instruction_types test passed");
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}
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// ============================================================================
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// Phase 30.x: jsonir v0 スナップショットテスト
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// ============================================================================
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//
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// 目的:
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// - 現状の JoinIR 形（pre-generic な generic_case_a / case-specific lowering）を
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// v0_ フィクスチャとして固定する
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// - JoinIR/LoopScopeShape の汎用化中に意図しない退行を検知する
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//
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// 実行方法:
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// NYASH_JOINIR_SNAPSHOT_TEST=1 cargo test --release joinir_json_v0_ -- --nocapture
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//
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// フィクスチャ初期生成:
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// NYASH_JOINIR_SNAPSHOT_GENERATE=1 cargo test --release joinir_json_v0_ -- --nocapture
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use crate::ast::ASTNode;
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use crate::mir::join_ir::lowering::{
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lower_funcscanner_append_defs_to_joinir, lower_funcscanner_trim_to_joinir,
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lower_skip_ws_to_joinir, lower_stage1_usingresolver_to_joinir, lower_stageb_body_to_joinir,
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lower_stageb_funcscanner_to_joinir,
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};
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use crate::mir::MirCompiler;
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use crate::parser::NyashParser;
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/// フィクスチャファイルのベースディレクトリ
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const FIXTURE_DIR: &str = "tests/fixtures/joinir";
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/// v0 スナップショットのケース定義
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#[derive(Debug, Clone, Copy)]
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enum SnapshotCase {
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SkipWsMin,
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FuncscannerTrimMin,
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FuncscannerAppendDefsMin,
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Stage1UsingresolverMin,
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StagebBodyMin,
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StagebFuncscannerMin,
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}
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impl SnapshotCase {
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fn fixture_filename(&self) -> &'static str {
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match self {
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Self::SkipWsMin => "v0_skip_ws_min.jsonir",
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Self::FuncscannerTrimMin => "v0_funcscanner_trim_min.jsonir",
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Self::FuncscannerAppendDefsMin => "v0_funcscanner_append_defs_min.jsonir",
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Self::Stage1UsingresolverMin => "v0_stage1_usingresolver_min.jsonir",
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Self::StagebBodyMin => "v0_stageb_body_min.jsonir",
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Self::StagebFuncscannerMin => "v0_stageb_funcscanner_min.jsonir",
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}
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}
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fn source_file(&self) -> &'static str {
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match self {
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Self::SkipWsMin => "apps/tests/minimal_ssa_skip_ws.hako",
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Self::FuncscannerTrimMin => "lang/src/compiler/tests/funcscanner_trim_min.hako",
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Self::FuncscannerAppendDefsMin => "apps/tests/funcscanner_append_defs_minimal.hako",
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Self::Stage1UsingresolverMin => "apps/tests/stage1_usingresolver_minimal.hako",
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Self::StagebBodyMin => "apps/tests/stageb_body_extract_minimal.hako",
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Self::StagebFuncscannerMin => "apps/tests/stageb_funcscanner_scan_boxes_minimal.hako",
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}
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}
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fn name(&self) -> &'static str {
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match self {
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Self::SkipWsMin => "skip_ws_min",
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Self::FuncscannerTrimMin => "funcscanner_trim_min",
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Self::FuncscannerAppendDefsMin => "funcscanner_append_defs_min",
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Self::Stage1UsingresolverMin => "stage1_usingresolver_min",
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Self::StagebBodyMin => "stageb_body_min",
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Self::StagebFuncscannerMin => "stageb_funcscanner_min",
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}
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}
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}
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/// ケースに対応する JoinIR JSON を生成
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fn generate_joinir_json(case: SnapshotCase) -> Option<String> {
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// Stage-3 parser を有効化
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std::env::set_var("NYASH_PARSER_STAGE3", "1");
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std::env::set_var("HAKO_PARSER_STAGE3", "1");
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let src = std::fs::read_to_string(case.source_file()).ok()?;
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// FuncScanner.trim は FuncScannerBox の定義が必要
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let full_src = if matches!(case, SnapshotCase::FuncscannerTrimMin) {
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let func_scanner_src =
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std::fs::read_to_string("lang/src/compiler/entry/func_scanner.hako").ok()?;
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format!("{func_scanner_src}\n\n{src}")
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} else {
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src
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};
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let ast: ASTNode = NyashParser::parse_from_string(&full_src).ok()?;
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let mut mc = MirCompiler::with_options(false);
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let compiled = mc.compile(ast).ok()?;
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let join_module = match case {
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SnapshotCase::SkipWsMin => lower_skip_ws_to_joinir(&compiled.module),
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SnapshotCase::FuncscannerTrimMin => lower_funcscanner_trim_to_joinir(&compiled.module),
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SnapshotCase::FuncscannerAppendDefsMin => {
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lower_funcscanner_append_defs_to_joinir(&compiled.module)
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}
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SnapshotCase::Stage1UsingresolverMin => {
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lower_stage1_usingresolver_to_joinir(&compiled.module)
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}
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SnapshotCase::StagebBodyMin => lower_stageb_body_to_joinir(&compiled.module),
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SnapshotCase::StagebFuncscannerMin => lower_stageb_funcscanner_to_joinir(&compiled.module),
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}?;
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Some(join_module_to_json_string(&join_module))
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}
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/// スナップショット比較を実行（共通ロジック）
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fn run_snapshot_test(case: SnapshotCase) {
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// トグルチェック
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if std::env::var("NYASH_JOINIR_SNAPSHOT_TEST").ok().as_deref() != Some("1") {
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eprintln!(
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"[joinir/snapshot] NYASH_JOINIR_SNAPSHOT_TEST=1 not set, skipping {}",
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case.name()
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);
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return;
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}
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let fixture_path = format!("{}/{}", FIXTURE_DIR, case.fixture_filename());
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// JoinIR JSON 生成
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let json = match generate_joinir_json(case) {
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Some(j) => j,
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None => {
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eprintln!(
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"[joinir/snapshot] Failed to generate JoinIR for {}, skipping",
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case.name()
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);
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return;
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}
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};
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// フィクスチャ生成モード
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if std::env::var("NYASH_JOINIR_SNAPSHOT_GENERATE").ok().as_deref() == Some("1") {
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std::fs::write(&fixture_path, &json).expect("Failed to write fixture");
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eprintln!(
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"[joinir/snapshot] Generated fixture: {} ({} bytes)",
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fixture_path,
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json.len()
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);
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return;
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}
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// フィクスチャ読み込み
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let fixture = match std::fs::read_to_string(&fixture_path) {
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Ok(f) => f,
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Err(_) => {
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eprintln!(
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"[joinir/snapshot] Fixture not found: {}\n\
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Run with NYASH_JOINIR_SNAPSHOT_GENERATE=1 to create it.",
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fixture_path
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);
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panic!("Fixture not found: {}", fixture_path);
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}
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};
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// 比較
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if json != fixture {
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eprintln!(
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"[joinir/snapshot] MISMATCH for {}\n\
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--- actual ({} bytes) ---\n{}\n\
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--- fixture ({} bytes) ---\n{}",
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case.name(),
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json.len(),
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json,
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fixture.len(),
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fixture
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);
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panic!("jsonir v0 snapshot mismatch for {}", case.name());
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}
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eprintln!(
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"[joinir/snapshot] {} matches fixture ✓",
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case.name()
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);
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}
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// ============================================================================
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// 個別スナップショットテスト
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// ============================================================================
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#[test]
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fn joinir_json_v0_skip_ws_min_matches_fixture() {
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run_snapshot_test(SnapshotCase::SkipWsMin);
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}
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#[test]
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fn joinir_json_v0_funcscanner_trim_min_matches_fixture() {
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run_snapshot_test(SnapshotCase::FuncscannerTrimMin);
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}
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#[test]
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fn joinir_json_v0_funcscanner_append_defs_min_matches_fixture() {
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run_snapshot_test(SnapshotCase::FuncscannerAppendDefsMin);
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}
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#[test]
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fn joinir_json_v0_stage1_usingresolver_min_matches_fixture() {
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run_snapshot_test(SnapshotCase::Stage1UsingresolverMin);
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}
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#[test]
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fn joinir_json_v0_stageb_body_min_matches_fixture() {
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run_snapshot_test(SnapshotCase::StagebBodyMin);
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}
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#[test]
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fn joinir_json_v0_stageb_funcscanner_min_matches_fixture() {
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run_snapshot_test(SnapshotCase::StagebFuncscannerMin);
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}
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