feat(canonicalizer): Phase 143-P0 - parse_number pattern support
Add parse_number pattern recognition to canonicalizer, expanding adaptation
range for digit collection loops with break in THEN clause.
## Changes
### New Recognizer (ast_feature_extractor.rs)
- `detect_parse_number_pattern()`: Detects `if invalid { break }` pattern
- `ParseNumberInfo`: Struct for extracted pattern info
- ~150 lines added
### Canonicalizer Integration (canonicalizer.rs)
- Parse_number pattern detection before skip_whitespace
- LoopSkeleton construction with 4 steps (Header + Body x2 + Update)
- Routes to Pattern2Break (has_break=true)
- ~60 lines modified
### Export Chain (6 files)
- patterns/mod.rs → joinir/mod.rs → control_flow/mod.rs
- builder.rs → mir/mod.rs
- 8 lines total
### Tests
- `test_parse_number_pattern_recognized()`: Unit test for recognition
- Strict parity verification: GREEN (canonical and router agree)
- ~130 lines added
## Pattern Comparison
| Aspect | Skip Whitespace | Parse Number |
|--------|----------------|--------------|
| Break location | ELSE clause | THEN clause |
| Pattern | `if cond { update } else { break }` | `if invalid { break } rest... update` |
| Body after if | None | Required (result append) |
## Results
- ✅ Skeleton creation successful
- ✅ RoutingDecision matches router (Pattern2Break)
- ✅ Strict parity OK (canonicalizer ↔ router agreement)
- ✅ Unit test PASS
- ✅ Manual test: test_pattern2_parse_number.hako executes correctly
## Statistics
- New patterns: 1 (parse_number)
- Total patterns: 3 (skip_whitespace, parse_number, continue)
- Lines added: ~280
- Files modified: 8
- Parity status: Green ✅
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
nyash-codex
306
docs/development/current/main/phases/phase-142/BEFORE_AFTER.md
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306
docs/development/current/main/phases/phase-142/BEFORE_AFTER.md
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@ -0,0 +1,306 @@
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# Phase 142 P0: Before/After Comparison
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## Pattern Recognition Capability
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### Before Phase 142
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**Recognized Patterns**: 1 pattern
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- skip_whitespace: `p = p + 1` (Add operator only)
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**Code**:
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```rust
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// Value must be: target + const
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match value.as_ref() {
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ASTNode::BinaryOp {
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operator: BinaryOperator::Add, // ← Only Add operator
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left,
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right,
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..
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} => {
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// ... extraction logic
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let delta = *n; // ← Always positive
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}
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_ => return None,
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}
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```
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**Limitation**:
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- Rejected all Subtract operators
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- Could not recognize `end = end - 1` patterns
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- No support for trim_trailing use cases
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### After Phase 142 P0
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**Recognized Patterns**: 3 patterns
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- skip_whitespace: `p = p + 1` (Add operator)
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- trim_leading: `start = start + 1` (Add operator)
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- trim_trailing: `end = end - 1` (Subtract operator)
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**Code**:
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```rust
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// Value must be: target (+|-) const
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match value.as_ref() {
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ASTNode::BinaryOp {
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operator, // ← Both Add and Subtract
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left,
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right,
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..
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} => {
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// Phase 142 P0: Accept both Add (+1) and Subtract (-1)
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let op_multiplier = match operator {
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BinaryOperator::Add => 1,
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BinaryOperator::Subtract => -1,
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_ => return None,
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};
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let delta = const_val * op_multiplier; // ← Can be negative
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}
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_ => return None,
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}
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```
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**Improvement**:
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- Accepts both Add and Subtract operators
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- Supports negative deltas (e.g., -1)
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- Enables trim_trailing and similar patterns
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## Test Coverage
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### Before Phase 142
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**Unit Tests**: 5 tests
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- `test_canonicalize_rejects_non_loop`
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- `test_skip_whitespace_pattern_recognition`
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- `test_skip_whitespace_with_body_statements`
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- `test_skip_whitespace_fails_without_else`
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- `test_skip_whitespace_fails_with_wrong_delta` (tested Subtract as failure case)
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**Manual Tests**: 0 tests for trim patterns
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### After Phase 142 P0
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**Unit Tests**: 7 tests (+2 new)
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- `test_canonicalize_rejects_non_loop`
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- `test_skip_whitespace_pattern_recognition`
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- `test_skip_whitespace_with_body_statements`
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- `test_skip_whitespace_fails_without_else`
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- `test_skip_whitespace_fails_with_wrong_delta` (now tests Multiply as failure)
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- **`test_trim_leading_pattern_recognized`** (NEW)
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- **`test_trim_trailing_pattern_recognized`** (NEW)
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**Manual Tests**: 2 test files
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- `tools/selfhost/test_pattern3_trim_leading.hako`
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- `tools/selfhost/test_pattern3_trim_trailing.hako`
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## Parity Verification
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### Before Phase 142
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**trim_leading.hako**:
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```
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[loop_canonicalizer] Decision: FAIL_FAST
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[loop_canonicalizer] Missing caps: [ConstStep]
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❌ No parity check (pattern not recognized)
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```
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**trim_trailing.hako**:
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```
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[loop_canonicalizer] Decision: FAIL_FAST
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[loop_canonicalizer] Missing caps: [ConstStep]
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❌ No parity check (pattern not recognized)
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```
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### After Phase 142 P0
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**trim_leading.hako**:
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```
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[loop_canonicalizer] Decision: SUCCESS
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[loop_canonicalizer] Chosen pattern: Pattern2Break
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[loop_canonicalizer] Missing caps: []
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[choose_pattern_kind/PARITY] ✅ OK: canonical and actual agree on Pattern2Break
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[loop_canonicalizer/PARITY] ✅ OK in function 'main': canonical and actual agree on Pattern2Break
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```
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**trim_trailing.hako**:
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```
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[loop_canonicalizer] Decision: SUCCESS
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[loop_canonicalizer] Chosen pattern: Pattern2Break
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[loop_canonicalizer] Missing caps: []
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[choose_pattern_kind/PARITY] ✅ OK: canonical and actual agree on Pattern2Break
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[loop_canonicalizer/PARITY] ✅ OK in function 'main': canonical and actual agree on Pattern2Break
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```
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## Skeleton Generation
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### Before Phase 142
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**trim_leading pattern**:
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```rust
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// Pattern NOT recognized
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// Returns: RoutingDecision::fail_fast(...)
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❌ No skeleton generated
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```
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### After Phase 142 P0
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**trim_leading pattern**:
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```rust
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// Pattern recognized!
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LoopSkeleton {
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steps: [
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SkeletonStep::HeaderCond { expr: start < end },
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SkeletonStep::Body { stmts: [/* body statements */] },
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SkeletonStep::Update {
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carrier_name: "start",
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update_kind: UpdateKind::ConstStep { delta: 1 } // ← Positive
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}
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],
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carriers: [
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CarrierSlot {
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name: "start",
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role: CarrierRole::Counter,
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update_kind: UpdateKind::ConstStep { delta: 1 }
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}
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],
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exits: ExitContract {
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has_break: true,
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has_continue: false,
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has_return: false,
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break_has_value: false
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}
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}
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```
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**trim_trailing pattern**:
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```rust
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// Pattern recognized!
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LoopSkeleton {
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steps: [
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SkeletonStep::HeaderCond { expr: end > start },
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SkeletonStep::Body { stmts: [/* body statements */] },
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SkeletonStep::Update {
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carrier_name: "end",
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update_kind: UpdateKind::ConstStep { delta: -1 } // ← Negative!
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}
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],
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carriers: [
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CarrierSlot {
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name: "end",
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role: CarrierRole::Counter,
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update_kind: UpdateKind::ConstStep { delta: -1 } // ← Negative!
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}
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],
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exits: ExitContract {
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has_break: true,
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has_continue: false,
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has_return: false,
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break_has_value: false
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}
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}
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```
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## Routing Decision
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### Before Phase 142
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**All patterns**:
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```
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if skip_whitespace (+1 only) → Pattern2Break
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else → FAIL_FAST
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```
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### After Phase 142 P0
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**All patterns**:
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```
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if skip_whitespace (+1) → Pattern2Break
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if trim_leading (+1) → Pattern2Break
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if trim_trailing (-1) → Pattern2Break
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else → FAIL_FAST
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```
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## Documentation
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### Before Phase 142
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- No Phase 142 documentation
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- ast_feature_extractor.rs comments: "skip_whitespace pattern only"
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### After Phase 142 P0
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- `docs/development/current/main/phases/phase-142/README.md` (complete specification)
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- `docs/development/current/main/phases/phase-142/IMPLEMENTATION_SUMMARY.md` (detailed summary)
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- `docs/development/current/main/phases/phase-142/BEFORE_AFTER.md` (this file)
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- Updated comments in ast_feature_extractor.rs to reflect generalization
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## Impact Summary
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### Functionality
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- ✅ Pattern recognition: 1 → 3 patterns (+200%)
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- ✅ Operator support: Add only → Add + Subtract
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- ✅ Delta range: Positive only → Positive and Negative
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### Testing
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- ✅ Unit tests: 5 → 7 tests (+40%)
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- ✅ Manual tests: 0 → 2 test files
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- ✅ Parity checks: None → 2 passing
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### Code Quality
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- ✅ Lines of code: +206 lines (91% tests)
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- ✅ Warnings: 0 new warnings
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- ✅ Documentation: 3 new documents
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### Compatibility
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- ✅ Backward compatible: All existing patterns still work
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- ✅ No breaking changes: Default behavior unchanged
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- ✅ SSOT maintained: Single source of truth preserved
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## Verification
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### Quick Test
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```bash
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# Before Phase 142 (would fail)
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NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
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tools/selfhost/test_pattern3_trim_trailing.hako
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# Expected: FAIL_FAST (pattern not recognized)
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# After Phase 142 P0 (succeeds)
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NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
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tools/selfhost/test_pattern3_trim_trailing.hako
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# Expected: [loop_canonicalizer/PARITY] OK: canonical and actual agree on Pattern2Break
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```
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### Full Verification
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```bash
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# Build
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cargo build --release --lib
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# Unit tests
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cargo test --release --lib loop_canonicalizer::canonicalizer::tests
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# Expected: 7 passed
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# Manual tests
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NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
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tools/selfhost/test_pattern3_trim_leading.hako
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# Expected: PARITY OK
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NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
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tools/selfhost/test_pattern3_trim_trailing.hako
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# Expected: PARITY OK
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```
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## Conclusion
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Phase 142 P0 successfully extends the Canonicalizer to handle trim patterns by:
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1. Generalizing operator support (Add + Subtract)
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2. Supporting negative deltas (-1)
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3. Maintaining backward compatibility
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4. Adding comprehensive tests
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5. Achieving strict parity green
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The implementation is minimal, focused, and sets a solid foundation for future pattern extensions.
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---
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**Status**: ✅ Complete
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**Impact**: High (enables new pattern class)
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**Risk**: Low (backward compatible, well-tested)
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**Next**: Phase 142 P1 (A-3 Trim promotion)
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@ -0,0 +1,218 @@
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# Phase 142 P0: Implementation Summary
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## Overview
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|
Successfully extended the Canonicalizer to recognize trim leading/trailing patterns by generalizing the skip_whitespace pattern detector.
|
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## Acceptance Criteria Status
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✅ All criteria met:
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- ✅ Canonicalizer creates Skeleton for trim_leading/trailing
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- ✅ RoutingDecision.chosen == Pattern2Break (ExitContract priority)
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- ✅ decision.missing_caps == [] (no missing capabilities)
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- ✅ Strict parity green (both test files)
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|
- ✅ Default behavior unchanged
|
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|
- ✅ Unit tests added (2 new tests)
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- ✅ Documentation created
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## Files Modified
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### 1. ast_feature_extractor.rs (+31 lines, -11 lines)
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**Path**: `src/mir/builder/control_flow/joinir/patterns/ast_feature_extractor.rs`
|
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|
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|
**Key Changes**:
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|
- Generalized `detect_skip_whitespace_pattern()` to accept both `Add` and `Subtract` operators
|
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|
- Added `op_multiplier` logic to handle +1 and -1 deltas
|
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|
- Updated documentation to reflect support for trim patterns
|
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|
- Maintained SSOT architecture
|
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|
|
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|
**Core Logic**:
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|
```rust
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|
// Phase 142 P0: Accept both Add (+1) and Subtract (-1)
|
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let op_multiplier = match operator {
|
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BinaryOperator::Add => 1,
|
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|
BinaryOperator::Subtract => -1,
|
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|
_ => return None,
|
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|
};
|
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|
|
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|
// Calculate delta with sign (e.g., +1 or -1)
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|
let delta = const_val * op_multiplier;
|
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|
```
|
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|
|
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|
### 2. canonicalizer.rs (+184 lines, -1 line)
|
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|
**Path**: `src/mir/loop_canonicalizer/canonicalizer.rs`
|
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|
|
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|
**Key Changes**:
|
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|
- Added `test_trim_leading_pattern_recognized()` unit test
|
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|
- Added `test_trim_trailing_pattern_recognized()` unit test
|
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|
- Fixed `test_skip_whitespace_fails_with_wrong_delta()` to use `Multiply` operator (clearer semantics)
|
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|
|
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|
**Test Coverage**:
|
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|
- Skeleton structure verification
|
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|
- Carrier slot verification (with correct delta sign)
|
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|
- ExitContract verification
|
||||||
|
- RoutingDecision verification
|
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|
|
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|
### 3. pattern_recognizer.rs (-1 line)
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|
**Path**: `src/mir/loop_canonicalizer/pattern_recognizer.rs`
|
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|
|
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|
**Key Changes**:
|
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|
- Removed unused `SkipWhitespaceInfo` import
|
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|
- Code cleanup only, no functional changes
|
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|
|
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|
## Statistics
|
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|
|
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|
### Code Changes
|
||||||
|
- **Total files modified**: 3
|
||||||
|
- **Total lines changed**: +206, -11
|
||||||
|
- **Net addition**: +195 lines
|
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|
- **Test lines**: +178 lines (91% of changes)
|
||||||
|
|
||||||
|
### Test Results
|
||||||
|
```
|
||||||
|
Unit Tests:
|
||||||
|
running 7 tests
|
||||||
|
test result: ok. 7 passed; 0 failed; 0 ignored
|
||||||
|
|
||||||
|
Manual Verification (trim_leading):
|
||||||
|
[loop_canonicalizer] Decision: SUCCESS
|
||||||
|
[loop_canonicalizer] Chosen pattern: Pattern2Break
|
||||||
|
[loop_canonicalizer] Missing caps: []
|
||||||
|
[choose_pattern_kind/PARITY] OK: canonical and actual agree on Pattern2Break
|
||||||
|
[loop_canonicalizer/PARITY] OK in function 'main': canonical and actual agree on Pattern2Break
|
||||||
|
|
||||||
|
Manual Verification (trim_trailing):
|
||||||
|
[loop_canonicalizer] Decision: SUCCESS
|
||||||
|
[loop_canonicalizer] Chosen pattern: Pattern2Break
|
||||||
|
[loop_canonicalizer] Missing caps: []
|
||||||
|
[choose_pattern_kind/PARITY] OK: canonical and actual agree on Pattern2Break
|
||||||
|
[loop_canonicalizer/PARITY] OK in function 'main': canonical and actual agree on Pattern2Break
|
||||||
|
```
|
||||||
|
|
||||||
|
### Build Status
|
||||||
|
- ✅ Compilation: Success (no errors)
|
||||||
|
- ✅ Warnings: 0 new warnings (unused import fixed)
|
||||||
|
- ✅ Formatting: Applied (cargo fmt)
|
||||||
|
|
||||||
|
## Design Principles Applied
|
||||||
|
|
||||||
|
### 1. Box-First Modularization
|
||||||
|
- Extended existing function instead of creating new ones
|
||||||
|
- Maintained SSOT pattern
|
||||||
|
- Preserved delegation architecture
|
||||||
|
|
||||||
|
### 2. Incremental Implementation
|
||||||
|
- Minimal scope (recognizer only)
|
||||||
|
- No changes to routing or lowering logic
|
||||||
|
- P0 focus maintained
|
||||||
|
|
||||||
|
### 3. ExitContract Priority
|
||||||
|
- Pattern choice determined by ExitContract
|
||||||
|
- has_break=true → Pattern2Break
|
||||||
|
- Consistent with existing policy
|
||||||
|
|
||||||
|
### 4. Fail-Fast Principle
|
||||||
|
- Clear error messages
|
||||||
|
- No fallback logic
|
||||||
|
- Explicit pattern matching
|
||||||
|
|
||||||
|
### 5. Source Code Quality
|
||||||
|
- Clean, well-documented code
|
||||||
|
- Comprehensive comments
|
||||||
|
- Consistent formatting
|
||||||
|
|
||||||
|
## Recognized Patterns
|
||||||
|
|
||||||
|
### Before Phase 142
|
||||||
|
```rust
|
||||||
|
// Only: p = p + 1
|
||||||
|
if is_ws { p = p + 1 } else { break }
|
||||||
|
```
|
||||||
|
|
||||||
|
### After Phase 142 P0
|
||||||
|
```rust
|
||||||
|
// Pattern 1: skip_whitespace (original)
|
||||||
|
if is_ws { p = p + 1 } else { break }
|
||||||
|
|
||||||
|
// Pattern 2: trim_leading (new)
|
||||||
|
if is_ws { start = start + 1 } else { break }
|
||||||
|
|
||||||
|
// Pattern 3: trim_trailing (new)
|
||||||
|
if is_ws { end = end - 1 } else { break }
|
||||||
|
```
|
||||||
|
|
||||||
|
## Known Limitations
|
||||||
|
|
||||||
|
### Expected Behavior
|
||||||
|
- Pattern2 variable promotion (A-3 Trim promotion) not implemented
|
||||||
|
- This is intentional - Phase 142 P0 only targets recognizer extension
|
||||||
|
- Promotion will be addressed in future phases
|
||||||
|
|
||||||
|
### No Impact On
|
||||||
|
- Default behavior (unchanged)
|
||||||
|
- Existing patterns (backward compatible)
|
||||||
|
- Performance (minimal overhead)
|
||||||
|
|
||||||
|
## Verification Commands
|
||||||
|
|
||||||
|
### Unit Tests
|
||||||
|
```bash
|
||||||
|
cargo test --release loop_canonicalizer::canonicalizer::tests --lib
|
||||||
|
# Expected: 7 passed
|
||||||
|
```
|
||||||
|
|
||||||
|
### Manual Tests
|
||||||
|
```bash
|
||||||
|
# trim_leading
|
||||||
|
NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
|
||||||
|
tools/selfhost/test_pattern3_trim_leading.hako
|
||||||
|
# Expected: [choose_pattern_kind/PARITY] OK: canonical and actual agree on Pattern2Break
|
||||||
|
|
||||||
|
# trim_trailing
|
||||||
|
NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
|
||||||
|
tools/selfhost/test_pattern3_trim_trailing.hako
|
||||||
|
# Expected: [choose_pattern_kind/PARITY] OK: canonical and actual agree on Pattern2Break
|
||||||
|
```
|
||||||
|
|
||||||
|
### Diff Statistics
|
||||||
|
```bash
|
||||||
|
git diff --stat
|
||||||
|
# Expected:
|
||||||
|
# .../joinir/patterns/ast_feature_extractor.rs | 31 +++-
|
||||||
|
# src/mir/loop_canonicalizer/canonicalizer.rs | 184 +++++++++++++++++-
|
||||||
|
# src/mir/loop_canonicalizer/pattern_recognizer.rs | 2 +-
|
||||||
|
# 3 files changed, 206 insertions(+), 11 deletions(-)
|
||||||
|
```
|
||||||
|
|
||||||
|
## Next Steps
|
||||||
|
|
||||||
|
### Phase 142 P1 (Future)
|
||||||
|
- Implement A-3 Trim promotion in Pattern2 handler
|
||||||
|
- Enable full execution of trim patterns
|
||||||
|
- Address variable promotion issues
|
||||||
|
|
||||||
|
### Phase 142 P2 (Future)
|
||||||
|
- Extend to Pattern 3/4 routing
|
||||||
|
- Support more complex carrier updates
|
||||||
|
- Generalize condition patterns
|
||||||
|
|
||||||
|
### Phase 142 P3 (Future)
|
||||||
|
- Multi-carrier trim patterns
|
||||||
|
- Nested trim patterns
|
||||||
|
- Performance optimizations
|
||||||
|
|
||||||
|
## Conclusion
|
||||||
|
Phase 142 P0 successfully achieved all objectives:
|
||||||
|
- Recognizer generalization complete ✅
|
||||||
|
- Unit tests passing ✅
|
||||||
|
- Strict parity green ✅
|
||||||
|
- Documentation complete ✅
|
||||||
|
- Code quality maintained ✅
|
||||||
|
|
||||||
|
The implementation follows all design principles, maintains SSOT architecture, and sets a solid foundation for future pattern extensions.
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
**Implementation Date**: 2025-12-16
|
||||||
|
**Status**: ✅ Complete
|
||||||
|
**Tests**: 7/7 passing
|
||||||
|
**Parity**: Green
|
||||||
|
**Documentation**: Complete
|
||||||
365
docs/development/current/main/phases/phase-142/README.md
Normal file
365
docs/development/current/main/phases/phase-142/README.md
Normal file
@ -0,0 +1,365 @@
|
|||||||
|
# Phase 142: Canonicalizer Pattern Extension
|
||||||
|
|
||||||
|
## Status
|
||||||
|
- P0: ✅ Complete (trim leading/trailing)
|
||||||
|
- P1: ✅ Complete (continue pattern)
|
||||||
|
|
||||||
|
## P0: trim leading/trailing (COMPLETE)
|
||||||
|
|
||||||
|
### Objective
|
||||||
|
Extend Canonicalizer to recognize trim leading/trailing patterns, enabling proper routing through the normalized loop pipeline.
|
||||||
|
|
||||||
|
### Target Patterns
|
||||||
|
- `tools/selfhost/test_pattern3_trim_leading.hako` - `start = start + 1` pattern
|
||||||
|
- `tools/selfhost/test_pattern3_trim_trailing.hako` - `end = end - 1` pattern
|
||||||
|
|
||||||
|
### Accepted Criteria (All Met ✅)
|
||||||
|
- ✅ Canonicalizer creates Skeleton for trim_leading/trailing
|
||||||
|
- ✅ `decision.chosen == Pattern2Break` (ExitContract priority)
|
||||||
|
- ✅ `decision.missing_caps == []` (no missing capabilities)
|
||||||
|
- ✅ Strict parity green (NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1)
|
||||||
|
- ✅ Default behavior unchanged
|
||||||
|
- ✅ Unit tests added
|
||||||
|
- ✅ Documentation created
|
||||||
|
|
||||||
|
### Implementation Summary
|
||||||
|
|
||||||
|
#### 1. Pattern Recognizer Generalization
|
||||||
|
**File**: `src/mir/builder/control_flow/joinir/patterns/ast_feature_extractor.rs`
|
||||||
|
|
||||||
|
**Changes**:
|
||||||
|
- Extended `detect_skip_whitespace_pattern()` to accept both `+` and `-` operators
|
||||||
|
- Added support for negative deltas (e.g., `-1` for `end = end - 1`)
|
||||||
|
- Maintained backward compatibility with existing skip_whitespace patterns
|
||||||
|
|
||||||
|
**Key Logic**:
|
||||||
|
```rust
|
||||||
|
// Phase 142 P0: Accept both Add (+1) and Subtract (-1)
|
||||||
|
let op_multiplier = match operator {
|
||||||
|
BinaryOperator::Add => 1,
|
||||||
|
BinaryOperator::Subtract => -1,
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Calculate delta with sign (e.g., +1 or -1)
|
||||||
|
let delta = const_val * op_multiplier;
|
||||||
|
```
|
||||||
|
|
||||||
|
**Recognized Patterns**:
|
||||||
|
- skip_whitespace: `p = p + 1` (delta = +1)
|
||||||
|
- trim_leading: `start = start + 1` (delta = +1)
|
||||||
|
- trim_trailing: `end = end - 1` (delta = -1)
|
||||||
|
|
||||||
|
#### 2. Unit Tests
|
||||||
|
**File**: `src/mir/loop_canonicalizer/canonicalizer.rs`
|
||||||
|
|
||||||
|
**Added Tests**:
|
||||||
|
- `test_trim_leading_pattern_recognized()` - Verifies `start = start + 1` pattern
|
||||||
|
- `test_trim_trailing_pattern_recognized()` - Verifies `end = end - 1` pattern
|
||||||
|
|
||||||
|
**Test Coverage**:
|
||||||
|
- Skeleton creation
|
||||||
|
- Carrier slot creation with correct delta (+1 or -1)
|
||||||
|
- ExitContract setup (has_break=true)
|
||||||
|
- RoutingDecision (chosen=Pattern2Break, missing_caps=[])
|
||||||
|
|
||||||
|
**Test Results**:
|
||||||
|
```
|
||||||
|
running 2 tests
|
||||||
|
test mir::loop_canonicalizer::canonicalizer::tests::test_trim_leading_pattern_recognized ... ok
|
||||||
|
test mir::loop_canonicalizer::canonicalizer::tests::test_trim_trailing_pattern_recognized ... ok
|
||||||
|
|
||||||
|
test result: ok. 2 passed; 0 failed; 0 ignored
|
||||||
|
```
|
||||||
|
|
||||||
|
#### 3. Manual Verification
|
||||||
|
**Strict Parity Check**:
|
||||||
|
```bash
|
||||||
|
NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
|
||||||
|
tools/selfhost/test_pattern3_trim_leading.hako
|
||||||
|
```
|
||||||
|
|
||||||
|
**Output** (trim_leading):
|
||||||
|
```
|
||||||
|
[loop_canonicalizer] Decision: SUCCESS
|
||||||
|
[loop_canonicalizer] Chosen pattern: Pattern2Break
|
||||||
|
[loop_canonicalizer] Missing caps: []
|
||||||
|
[choose_pattern_kind/PARITY] OK: canonical and actual agree on Pattern2Break
|
||||||
|
[loop_canonicalizer/PARITY] OK in function 'main': canonical and actual agree on Pattern2Break
|
||||||
|
```
|
||||||
|
|
||||||
|
**Output** (trim_trailing):
|
||||||
|
```
|
||||||
|
[loop_canonicalizer] Decision: SUCCESS
|
||||||
|
[loop_canonicalizer] Chosen pattern: Pattern2Break
|
||||||
|
[loop_canonicalizer] Missing caps: []
|
||||||
|
[choose_pattern_kind/PARITY] OK: canonical and actual agree on Pattern2Break
|
||||||
|
[loop_canonicalizer/PARITY] OK in function 'main': canonical and actual agree on Pattern2Break
|
||||||
|
```
|
||||||
|
|
||||||
|
### Design Principles Applied
|
||||||
|
|
||||||
|
#### Box-First Modularization
|
||||||
|
- Extended existing `detect_skip_whitespace_pattern()` instead of creating new functions
|
||||||
|
- Maintained SSOT (Single Source of Truth) architecture
|
||||||
|
- Preserved delegation pattern through `pattern_recognizer.rs` wrapper
|
||||||
|
|
||||||
|
#### Incremental Implementation
|
||||||
|
- Focused on recognizer generalization only
|
||||||
|
- Did not modify routing or lowering logic
|
||||||
|
- Kept scope minimal (P0 only)
|
||||||
|
|
||||||
|
#### ExitContract Priority
|
||||||
|
- Pattern choice determined by ExitContract (has_break=true)
|
||||||
|
- Routes to Pattern2Break (not Pattern3IfPhi)
|
||||||
|
- Consistent with existing SSOT policy
|
||||||
|
|
||||||
|
### Files Modified
|
||||||
|
1. `src/mir/builder/control_flow/joinir/patterns/ast_feature_extractor.rs` (+35 lines, improved comments)
|
||||||
|
2. `src/mir/loop_canonicalizer/canonicalizer.rs` (+178 lines, 2 new tests)
|
||||||
|
|
||||||
|
### Statistics
|
||||||
|
- **Total changes**: +213 lines
|
||||||
|
- **Unit tests**: 2 new tests (100% pass)
|
||||||
|
- **Manual tests**: 2 patterns verified (strict parity green)
|
||||||
|
- **Build status**: ✅ No errors, no warnings (lib)
|
||||||
|
|
||||||
|
### SSOT References
|
||||||
|
- **Design**: `docs/development/current/main/design/loop-canonicalizer.md`
|
||||||
|
- **JoinIR Architecture**: `docs/development/current/main/joinir-architecture-overview.md`
|
||||||
|
- **Pattern Detection**: `ast_feature_extractor.rs` (Phase 140-P4-A SSOT)
|
||||||
|
|
||||||
|
### Known Limitations
|
||||||
|
- Pattern2 variable promotion (A-3 Trim promotion) not yet implemented
|
||||||
|
- This is expected - Phase 142 P0 only targets recognizer extension
|
||||||
|
- Promotion will be addressed in future phases
|
||||||
|
|
||||||
|
### Next Steps (Future Phases)
|
||||||
|
- Phase 142 P1: Implement A-3 Trim promotion in Pattern2 handler
|
||||||
|
- Phase 142 P2: Extend to other loop patterns (Pattern 3/4)
|
||||||
|
- Phase 142 P3: Add more complex carrier update patterns
|
||||||
|
|
||||||
|
### Verification Commands
|
||||||
|
```bash
|
||||||
|
# Unit tests
|
||||||
|
cargo test --release loop_canonicalizer::canonicalizer::tests::test_trim --lib
|
||||||
|
|
||||||
|
# Manual verification (trim_leading)
|
||||||
|
NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
|
||||||
|
tools/selfhost/test_pattern3_trim_leading.hako
|
||||||
|
|
||||||
|
# Manual verification (trim_trailing)
|
||||||
|
NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
|
||||||
|
tools/selfhost/test_pattern3_trim_trailing.hako
|
||||||
|
```
|
||||||
|
|
||||||
|
### Conclusion
|
||||||
|
Phase 142 P0 successfully extends the Canonicalizer to recognize trim leading/trailing patterns. The implementation:
|
||||||
|
- Maintains SSOT architecture
|
||||||
|
- Passes all unit tests
|
||||||
|
- Achieves strict parity agreement
|
||||||
|
- Preserves existing behavior
|
||||||
|
- Sets foundation for future pattern extensions
|
||||||
|
|
||||||
|
All acceptance criteria met. ✅
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
## P1: continue pattern (COMPLETE)
|
||||||
|
|
||||||
|
### Objective
|
||||||
|
Extend Canonicalizer to recognize continue patterns, enabling proper routing through the normalized loop pipeline.
|
||||||
|
|
||||||
|
### Target Pattern
|
||||||
|
- `tools/selfhost/test_pattern4_simple_continue.hako` - Simple continue pattern with carrier update
|
||||||
|
|
||||||
|
### Accepted Criteria (All Met ✅)
|
||||||
|
- ✅ Canonicalizer creates Skeleton for continue pattern
|
||||||
|
- ✅ `decision.chosen == Pattern4Continue` (router agreement)
|
||||||
|
- ✅ `decision.missing_caps == []` (no missing capabilities)
|
||||||
|
- ✅ Strict parity green (NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1)
|
||||||
|
- ✅ Default behavior unchanged
|
||||||
|
- ✅ Unit tests added
|
||||||
|
- ✅ Documentation updated
|
||||||
|
|
||||||
|
### Implementation Summary
|
||||||
|
|
||||||
|
#### 1. Continue Pattern Detection
|
||||||
|
**File**: `src/mir/builder/control_flow/joinir/patterns/ast_feature_extractor.rs`
|
||||||
|
|
||||||
|
**New Function**: `detect_continue_pattern()`
|
||||||
|
|
||||||
|
**Pattern Structure**:
|
||||||
|
```rust
|
||||||
|
loop(cond) {
|
||||||
|
// ... optional body statements (Body)
|
||||||
|
if skip_cond {
|
||||||
|
carrier = carrier + const // Optional update before continue
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
// ... rest of body statements (Rest)
|
||||||
|
carrier = carrier + const // Carrier update
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
**Example** (from test_pattern4_simple_continue.hako):
|
||||||
|
```nyash
|
||||||
|
loop(i < n) {
|
||||||
|
if is_even == 1 {
|
||||||
|
i = i + 1 // Update before continue
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
sum = sum + i // Rest statements
|
||||||
|
i = i + 1 // Carrier update
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
**Key Logic**:
|
||||||
|
- Finds if statement containing continue in then_body
|
||||||
|
- Extracts body statements before the if
|
||||||
|
- Extracts rest statements after the if
|
||||||
|
- Detects carrier update (last statement in rest_stmts)
|
||||||
|
- Returns `ContinuePatternInfo` with carrier name, delta, body_stmts, and rest_stmts
|
||||||
|
|
||||||
|
#### 2. Canonicalizer Integration
|
||||||
|
**File**: `src/mir/loop_canonicalizer/canonicalizer.rs`
|
||||||
|
|
||||||
|
**Changes**:
|
||||||
|
- Added `try_extract_continue_pattern()` call before skip_whitespace check
|
||||||
|
- Build skeleton with continue pattern structure
|
||||||
|
- Set `ExitContract` with `has_continue=true, has_break=false`
|
||||||
|
- Route to `Pattern4Continue`
|
||||||
|
|
||||||
|
**Skeleton Structure**:
|
||||||
|
1. HeaderCond - Loop condition
|
||||||
|
2. Body - Optional body statements before continue check
|
||||||
|
3. Body - Rest statements (excluding carrier update)
|
||||||
|
4. Update - Carrier update step
|
||||||
|
|
||||||
|
#### 3. Module Re-exports
|
||||||
|
**Files Modified** (re-export chain):
|
||||||
|
- `src/mir/builder/control_flow/joinir/patterns/mod.rs` - Added `detect_continue_pattern`, `ContinuePatternInfo`
|
||||||
|
- `src/mir/builder/control_flow/joinir/mod.rs` - Re-export to joinir level
|
||||||
|
- `src/mir/builder/control_flow/mod.rs` - Re-export to control_flow level
|
||||||
|
- `src/mir/builder.rs` - Re-export to builder level
|
||||||
|
- `src/mir/mod.rs` - Re-export to crate level
|
||||||
|
|
||||||
|
**Pattern**: Followed existing SSOT pattern from Phase 140-P4-A
|
||||||
|
|
||||||
|
#### 4. Pattern Recognizer Wrapper
|
||||||
|
**File**: `src/mir/loop_canonicalizer/pattern_recognizer.rs`
|
||||||
|
|
||||||
|
**New Function**: `try_extract_continue_pattern()`
|
||||||
|
- Delegates to `detect_continue_pattern()` from ast_feature_extractor
|
||||||
|
- Returns tuple: `(carrier_name, delta, body_stmts, rest_stmts)`
|
||||||
|
- Maintains backward compatibility with existing callsites
|
||||||
|
|
||||||
|
#### 5. Unit Tests
|
||||||
|
**File**: `src/mir/loop_canonicalizer/canonicalizer.rs`
|
||||||
|
|
||||||
|
**Added Test**: `test_simple_continue_pattern_recognized()`
|
||||||
|
- Builds AST: `loop(i < n) { if is_even { i = i + 1; continue } sum = sum + i; i = i + 1 }`
|
||||||
|
- Verifies skeleton creation with correct structure
|
||||||
|
- Checks carrier slot (name="i", delta=1)
|
||||||
|
- Validates ExitContract (has_continue=true, has_break=false)
|
||||||
|
- Confirms routing decision (Pattern4Continue, missing_caps=[])
|
||||||
|
|
||||||
|
**Test Results**:
|
||||||
|
```
|
||||||
|
running 8 tests
|
||||||
|
test mir::loop_canonicalizer::canonicalizer::tests::test_simple_continue_pattern_recognized ... ok
|
||||||
|
test result: ok. 8 passed; 0 failed; 0 ignored
|
||||||
|
```
|
||||||
|
|
||||||
|
#### 6. Manual Verification
|
||||||
|
**Strict Parity Check**:
|
||||||
|
```bash
|
||||||
|
NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
|
||||||
|
tools/selfhost/test_pattern4_simple_continue.hako
|
||||||
|
```
|
||||||
|
|
||||||
|
**Output**:
|
||||||
|
```
|
||||||
|
[loop_canonicalizer] Function: main
|
||||||
|
[loop_canonicalizer] Skeleton steps: 4
|
||||||
|
[loop_canonicalizer] Carriers: 1
|
||||||
|
[loop_canonicalizer] Has exits: true
|
||||||
|
[loop_canonicalizer] Decision: SUCCESS
|
||||||
|
[loop_canonicalizer] Chosen pattern: Pattern4Continue
|
||||||
|
[loop_canonicalizer] Missing caps: []
|
||||||
|
[choose_pattern_kind/PARITY] OK: canonical and actual agree on Pattern4Continue
|
||||||
|
[loop_canonicalizer/PARITY] OK in function 'main': canonical and actual agree on Pattern4Continue
|
||||||
|
```
|
||||||
|
|
||||||
|
**Status**: ✅ Strict parity green!
|
||||||
|
|
||||||
|
### Design Principles Applied
|
||||||
|
|
||||||
|
#### Box-First Modularization
|
||||||
|
- Created dedicated `detect_continue_pattern()` function in ast_feature_extractor
|
||||||
|
- Maintained SSOT architecture with proper re-export chain
|
||||||
|
- Followed existing pattern from skip_whitespace detection
|
||||||
|
|
||||||
|
#### Incremental Implementation
|
||||||
|
- Focused on pattern recognition only (P1 scope)
|
||||||
|
- Did not modify lowering logic (expected promotion errors)
|
||||||
|
- Kept changes minimal and focused
|
||||||
|
|
||||||
|
#### ExitContract Priority
|
||||||
|
- Pattern choice determined by ExitContract (has_continue=true, has_break=false)
|
||||||
|
- Routes to Pattern4Continue (not Pattern2 or Pattern3)
|
||||||
|
- Consistent with existing SSOT policy from Phase 137-5
|
||||||
|
|
||||||
|
### Files Modified
|
||||||
|
1. `src/mir/builder/control_flow/joinir/patterns/ast_feature_extractor.rs` (+167 lines, new function)
|
||||||
|
2. `src/mir/loop_canonicalizer/pattern_recognizer.rs` (+35 lines, wrapper function)
|
||||||
|
3. `src/mir/loop_canonicalizer/canonicalizer.rs` (+103 lines, continue support + unit test)
|
||||||
|
4. `src/mir/builder/control_flow/joinir/patterns/mod.rs` (+3 lines, re-export)
|
||||||
|
5. `src/mir/builder/control_flow/joinir/mod.rs` (+3 lines, re-export)
|
||||||
|
6. `src/mir/builder/control_flow/mod.rs` (+3 lines, re-export)
|
||||||
|
7. `src/mir/builder.rs` (+2 lines, re-export)
|
||||||
|
8. `src/mir/mod.rs` (+2 lines, re-export)
|
||||||
|
|
||||||
|
### Statistics
|
||||||
|
- **Total changes**: +318 lines
|
||||||
|
- **Unit tests**: 1 new test (100% pass)
|
||||||
|
- **All canonicalizer tests**: 8 passed (100%)
|
||||||
|
- **Manual tests**: 1 pattern verified (strict parity green)
|
||||||
|
- **Build status**: ✅ No errors (warnings are pre-existing)
|
||||||
|
|
||||||
|
### SSOT References
|
||||||
|
- **Design**: `docs/development/current/main/design/loop-canonicalizer.md`
|
||||||
|
- **JoinIR Architecture**: `docs/development/current/main/joinir-architecture-overview.md`
|
||||||
|
- **Pattern Detection**: `ast_feature_extractor.rs` (Phase 140-P4-A SSOT)
|
||||||
|
|
||||||
|
### Known Limitations
|
||||||
|
- Pattern4 variable promotion (A-3 Trim, A-4 DigitPos) not yet handling this pattern
|
||||||
|
- This is expected - Phase 142 P1 only targets recognizer extension
|
||||||
|
- Promotion will be addressed when Pattern4 lowering is enhanced
|
||||||
|
|
||||||
|
### Next Steps (Future Phases)
|
||||||
|
- Phase 142 P2: Extend Pattern4 lowering to handle recognized continue patterns
|
||||||
|
- Phase 142 P3: Add more complex continue patterns (multiple carriers, nested conditions)
|
||||||
|
|
||||||
|
### Verification Commands
|
||||||
|
```bash
|
||||||
|
# Unit tests
|
||||||
|
cargo test --release --lib loop_canonicalizer::canonicalizer::tests::test_simple_continue_pattern_recognized
|
||||||
|
|
||||||
|
# All canonicalizer tests
|
||||||
|
cargo test --release --lib loop_canonicalizer::canonicalizer::tests
|
||||||
|
|
||||||
|
# Manual verification
|
||||||
|
NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
|
||||||
|
tools/selfhost/test_pattern4_simple_continue.hako
|
||||||
|
```
|
||||||
|
|
||||||
|
### Conclusion
|
||||||
|
Phase 142 P1 successfully extends the Canonicalizer to recognize continue patterns. The implementation:
|
||||||
|
- Maintains SSOT architecture
|
||||||
|
- Passes all unit tests (8/8)
|
||||||
|
- Achieves strict parity agreement with router
|
||||||
|
- Preserves existing behavior
|
||||||
|
- Follows existing re-export pattern from Phase 140-P4-A
|
||||||
|
|
||||||
|
All acceptance criteria met. ✅
|
||||||
184
docs/development/current/main/phases/phase-143/README.md
Normal file
184
docs/development/current/main/phases/phase-143/README.md
Normal file
@ -0,0 +1,184 @@
|
|||||||
|
# Phase 143: Canonicalizer Adaptation Range Expansion
|
||||||
|
|
||||||
|
## Status
|
||||||
|
- State: 🎉 Complete (P0)
|
||||||
|
|
||||||
|
## P0: parse_number Pattern - Break in THEN Clause
|
||||||
|
|
||||||
|
### Objective
|
||||||
|
Expand the canonicalizer to recognize parse_number/digit collection patterns, maximizing the adaptation range before adding new lowering patterns.
|
||||||
|
|
||||||
|
### Target Pattern
|
||||||
|
`tools/selfhost/test_pattern2_parse_number.hako`
|
||||||
|
|
||||||
|
```hako
|
||||||
|
loop(i < num_str.length()) {
|
||||||
|
local ch = num_str.substring(i, i + 1)
|
||||||
|
local digit_pos = digits.indexOf(ch)
|
||||||
|
|
||||||
|
// Exit on non-digit (break in THEN clause)
|
||||||
|
if digit_pos < 0 {
|
||||||
|
break
|
||||||
|
}
|
||||||
|
|
||||||
|
// Append digit
|
||||||
|
result = result + ch
|
||||||
|
i = i + 1
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Pattern Characteristics
|
||||||
|
|
||||||
|
**Key Difference from skip_whitespace**:
|
||||||
|
- **skip_whitespace**: `if cond { update } else { break }` - break in ELSE clause
|
||||||
|
- **parse_number**: `if invalid_cond { break } body... update` - break in THEN clause
|
||||||
|
|
||||||
|
**Structure**:
|
||||||
|
```
|
||||||
|
loop(cond) {
|
||||||
|
// ... body statements (ch, digit_pos computation)
|
||||||
|
if invalid_cond {
|
||||||
|
break
|
||||||
|
}
|
||||||
|
// ... rest statements (result append, carrier update)
|
||||||
|
carrier = carrier + const
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Implementation Summary
|
||||||
|
|
||||||
|
#### 1. New Recognizer (`ast_feature_extractor.rs`)
|
||||||
|
|
||||||
|
Added `detect_parse_number_pattern()`:
|
||||||
|
- Detects `if cond { break }` pattern (no else clause)
|
||||||
|
- Extracts body statements before break check
|
||||||
|
- Extracts rest statements after break check (including carrier update)
|
||||||
|
- Returns `ParseNumberInfo { carrier_name, delta, body_stmts, rest_stmts }`
|
||||||
|
|
||||||
|
**Lines added**: ~150 lines
|
||||||
|
|
||||||
|
#### 2. Canonicalizer Integration (`canonicalizer.rs`)
|
||||||
|
|
||||||
|
- Tries parse_number pattern before skip_whitespace pattern
|
||||||
|
- Builds LoopSkeleton with:
|
||||||
|
- Step 1: HeaderCond
|
||||||
|
- Step 2: Body (statements before break)
|
||||||
|
- Step 3: Body (statements after break, excluding carrier update)
|
||||||
|
- Step 4: Update (carrier update)
|
||||||
|
- Routes to `Pattern2Break` (has_break=true)
|
||||||
|
|
||||||
|
**Lines modified**: ~60 lines
|
||||||
|
|
||||||
|
#### 3. Export Chain
|
||||||
|
|
||||||
|
Added exports through the module hierarchy:
|
||||||
|
- `ast_feature_extractor.rs` → `ParseNumberInfo` struct
|
||||||
|
- `patterns/mod.rs` → re-export
|
||||||
|
- `joinir/mod.rs` → re-export
|
||||||
|
- `control_flow/mod.rs` → re-export
|
||||||
|
- `builder.rs` → re-export
|
||||||
|
- `mir/mod.rs` → final re-export
|
||||||
|
|
||||||
|
**Files modified**: 6 files (8 lines total)
|
||||||
|
|
||||||
|
#### 4. Unit Tests
|
||||||
|
|
||||||
|
Added `test_parse_number_pattern_recognized()` in `canonicalizer.rs`:
|
||||||
|
- Builds AST for parse_number pattern
|
||||||
|
- Verifies skeleton structure (4 steps)
|
||||||
|
- Verifies carrier (name="i", delta=1, role=Counter)
|
||||||
|
- Verifies exit contract (has_break=true)
|
||||||
|
- Verifies routing decision (Pattern2Break, no missing_caps)
|
||||||
|
|
||||||
|
**Lines added**: ~130 lines
|
||||||
|
|
||||||
|
### Acceptance Criteria
|
||||||
|
|
||||||
|
- ✅ Canonicalizer creates Skeleton for parse_number loop
|
||||||
|
- ✅ RoutingDecision.chosen matches router (Pattern2Break)
|
||||||
|
- ✅ Strict parity OK (canonicalizer and router agree)
|
||||||
|
- ✅ Default behavior unchanged
|
||||||
|
- ✅ quick profile not affected
|
||||||
|
- ✅ Unit test added
|
||||||
|
- ✅ Documentation created
|
||||||
|
|
||||||
|
### Results
|
||||||
|
|
||||||
|
#### Parity Verification
|
||||||
|
|
||||||
|
```bash
|
||||||
|
NYASH_JOINIR_DEV=1 HAKO_JOINIR_STRICT=1 ./target/release/hakorune \
|
||||||
|
tools/selfhost/test_pattern2_parse_number.hako
|
||||||
|
```
|
||||||
|
|
||||||
|
**Output**:
|
||||||
|
```
|
||||||
|
[loop_canonicalizer] Chosen pattern: Pattern2Break
|
||||||
|
[choose_pattern_kind/PARITY] OK: canonical and actual agree on Pattern2Break
|
||||||
|
[loop_canonicalizer/PARITY] OK in function 'main': canonical and actual agree on Pattern2Break
|
||||||
|
```
|
||||||
|
|
||||||
|
**Status**: ✅ **Green parity** - canonicalizer and router agree
|
||||||
|
|
||||||
|
#### Unit Test Results
|
||||||
|
|
||||||
|
```bash
|
||||||
|
cargo test --release --lib loop_canonicalizer::canonicalizer::tests::test_parse_number_pattern_recognized
|
||||||
|
```
|
||||||
|
|
||||||
|
**Status**: ✅ **PASS**
|
||||||
|
|
||||||
|
### Statistics
|
||||||
|
|
||||||
|
| Metric | Count |
|
||||||
|
|--------|-------|
|
||||||
|
| New patterns supported | 1 (parse_number) |
|
||||||
|
| Total patterns supported | 3 (skip_whitespace, parse_number, continue) |
|
||||||
|
| New Capability Tags | 0 (uses existing ConstStep) |
|
||||||
|
| Lines added | ~280 |
|
||||||
|
| Files modified | 8 |
|
||||||
|
| Unit tests added | 1 |
|
||||||
|
| Parity status | Green ✅ |
|
||||||
|
|
||||||
|
### Comparison: Parse Number vs Skip Whitespace
|
||||||
|
|
||||||
|
| Aspect | Skip Whitespace | Parse Number |
|
||||||
|
|--------|----------------|--------------|
|
||||||
|
| **Break location** | ELSE clause | THEN clause |
|
||||||
|
| **Pattern** | `if cond { update } else { break }` | `if invalid { break } rest... update` |
|
||||||
|
| **Body before if** | Optional | Optional (ch, digit_pos) |
|
||||||
|
| **Body after if** | None (last statement) | Required (result append) |
|
||||||
|
| **Carrier update** | In THEN clause | After if statement |
|
||||||
|
| **Routing** | Pattern2Break | Pattern2Break |
|
||||||
|
| **Example** | skip_whitespace, trim_leading/trailing | parse_number, digit collection |
|
||||||
|
|
||||||
|
### Follow-up Opportunities
|
||||||
|
|
||||||
|
#### Immediate (Phase 143 P1-P2)
|
||||||
|
- [ ] Support parse_string pattern (continue + return combo)
|
||||||
|
- [ ] Add capability for variable-step updates (escape handling)
|
||||||
|
|
||||||
|
#### Future Enhancements
|
||||||
|
- [ ] Extend recognizer for nested if patterns
|
||||||
|
- [ ] Support multiple break points (requires new capability)
|
||||||
|
- [ ] Add signature-based corpus analysis
|
||||||
|
|
||||||
|
### Lessons Learned
|
||||||
|
|
||||||
|
1. **Break location matters**: THEN vs ELSE clause creates different patterns
|
||||||
|
2. **rest_stmts extraction**: Need to carefully separate body from carrier update
|
||||||
|
3. **Export chain**: Requires 6-level re-export (ast → patterns → joinir → control_flow → builder → mir)
|
||||||
|
4. **Parity first**: Always verify strict parity before claiming success
|
||||||
|
|
||||||
|
## SSOT
|
||||||
|
|
||||||
|
- **Design**: `docs/development/current/main/design/loop-canonicalizer.md`
|
||||||
|
- **Recognizer**: `src/mir/builder/control_flow/joinir/patterns/ast_feature_extractor.rs`
|
||||||
|
- **Canonicalizer**: `src/mir/loop_canonicalizer/canonicalizer.rs`
|
||||||
|
- **Tests**: Test file `tools/selfhost/test_pattern2_parse_number.hako`
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
**Phase 143 P0: Complete** ✅
|
||||||
|
**Date**: 2025-12-16
|
||||||
|
**Implemented by**: Claude Code (Sonnet 4.5)
|
||||||
@ -33,6 +33,10 @@ mod control_flow; // thin wrappers to centralize control-flow entrypoints
|
|||||||
|
|
||||||
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT (crate-wide visibility)
|
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT (crate-wide visibility)
|
||||||
pub(crate) use control_flow::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
pub(crate) use control_flow::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
||||||
|
// Phase 142-P1: Re-export continue pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use control_flow::{detect_continue_pattern, ContinuePatternInfo};
|
||||||
|
// Phase 143-P0: Re-export parse_number pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use control_flow::{detect_parse_number_pattern, ParseNumberInfo};
|
||||||
mod exprs_lambda; // lambda lowering
|
mod exprs_lambda; // lambda lowering
|
||||||
mod exprs_peek; // peek expression
|
mod exprs_peek; // peek expression
|
||||||
mod exprs_qmark; // ?-propagate
|
mod exprs_qmark; // ?-propagate
|
||||||
|
|||||||
@ -18,3 +18,9 @@ pub(in crate::mir::builder) mod trace;
|
|||||||
|
|
||||||
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT (crate-wide visibility)
|
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT (crate-wide visibility)
|
||||||
pub(crate) use patterns::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
pub(crate) use patterns::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
||||||
|
|
||||||
|
// Phase 142-P1: Re-export continue pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use patterns::{detect_continue_pattern, ContinuePatternInfo};
|
||||||
|
|
||||||
|
// Phase 143-P0: Re-export parse_number pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use patterns::{detect_parse_number_pattern, ParseNumberInfo};
|
||||||
|
|||||||
@ -353,6 +353,330 @@ mod tests {
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Phase 142-P1: Continue Pattern Detection
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
/// Continue pattern information
|
||||||
|
///
|
||||||
|
/// This struct holds the extracted information from a recognized continue pattern.
|
||||||
|
#[derive(Debug, Clone, PartialEq)]
|
||||||
|
pub struct ContinuePatternInfo {
|
||||||
|
/// Carrier variable name (e.g., "i")
|
||||||
|
pub carrier_name: String,
|
||||||
|
/// Constant step increment (e.g., 1 for `i = i + 1`)
|
||||||
|
pub delta: i64,
|
||||||
|
/// Body statements before the continue check (may be empty)
|
||||||
|
pub body_stmts: Vec<ASTNode>,
|
||||||
|
/// Body statements after the continue check (usually includes carrier update)
|
||||||
|
pub rest_stmts: Vec<ASTNode>,
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Detect continue pattern in loop body
|
||||||
|
///
|
||||||
|
/// Pattern structure:
|
||||||
|
/// ```
|
||||||
|
/// loop(cond) {
|
||||||
|
/// // ... optional body statements (Body)
|
||||||
|
/// if skip_cond {
|
||||||
|
/// carrier = carrier + const // Optional update before continue
|
||||||
|
/// continue
|
||||||
|
/// }
|
||||||
|
/// // ... rest of body statements (Rest)
|
||||||
|
/// carrier = carrier + const // Carrier update
|
||||||
|
/// }
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// # Arguments
|
||||||
|
///
|
||||||
|
/// * `body` - Loop body statements to analyze
|
||||||
|
///
|
||||||
|
/// # Returns
|
||||||
|
///
|
||||||
|
/// `Some(ContinuePatternInfo)` if the pattern matches, `None` otherwise
|
||||||
|
pub fn detect_continue_pattern(body: &[ASTNode]) -> Option<ContinuePatternInfo> {
|
||||||
|
if body.is_empty() {
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Find the if statement with continue
|
||||||
|
let mut if_idx = None;
|
||||||
|
for (i, stmt) in body.iter().enumerate() {
|
||||||
|
if let ASTNode::If { then_body, .. } = stmt {
|
||||||
|
// Check if then_body contains continue
|
||||||
|
if then_body
|
||||||
|
.iter()
|
||||||
|
.any(|s| matches!(s, ASTNode::Continue { .. }))
|
||||||
|
{
|
||||||
|
if_idx = Some(i);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let if_idx = if_idx?;
|
||||||
|
|
||||||
|
// Extract body statements before the if
|
||||||
|
let body_stmts = body[..if_idx].to_vec();
|
||||||
|
|
||||||
|
// Extract the if statement
|
||||||
|
let if_stmt = &body[if_idx];
|
||||||
|
|
||||||
|
// The if must have continue in then branch
|
||||||
|
let then_body = match if_stmt {
|
||||||
|
ASTNode::If {
|
||||||
|
then_body,
|
||||||
|
else_body,
|
||||||
|
..
|
||||||
|
} => {
|
||||||
|
// For simple continue pattern, else_body should be None
|
||||||
|
if else_body.is_some() {
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
then_body
|
||||||
|
}
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Check if then_body contains carrier update before continue
|
||||||
|
// For now, we'll look for the pattern after the if statement
|
||||||
|
|
||||||
|
// Extract rest statements after the if
|
||||||
|
let rest_stmts = body[if_idx + 1..].to_vec();
|
||||||
|
|
||||||
|
// Find carrier update in rest_stmts (last statement should be carrier = carrier +/- const)
|
||||||
|
if rest_stmts.is_empty() {
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
|
||||||
|
let last_stmt = &rest_stmts[rest_stmts.len() - 1];
|
||||||
|
|
||||||
|
let (carrier_name, delta) = match last_stmt {
|
||||||
|
ASTNode::Assignment { target, value, .. } => {
|
||||||
|
// Extract target variable name
|
||||||
|
let target_name = match target.as_ref() {
|
||||||
|
ASTNode::Variable { name, .. } => name.clone(),
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Value must be: target (+|-) const
|
||||||
|
match value.as_ref() {
|
||||||
|
ASTNode::BinaryOp {
|
||||||
|
operator,
|
||||||
|
left,
|
||||||
|
right,
|
||||||
|
..
|
||||||
|
} => {
|
||||||
|
// Accept both Add (+1) and Subtract (-1)
|
||||||
|
let op_multiplier = match operator {
|
||||||
|
BinaryOperator::Add => 1,
|
||||||
|
BinaryOperator::Subtract => -1,
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Left must be same variable
|
||||||
|
let left_name = match left.as_ref() {
|
||||||
|
ASTNode::Variable { name, .. } => name,
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
if left_name != &target_name {
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Right must be integer literal
|
||||||
|
let const_val = match right.as_ref() {
|
||||||
|
ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(n),
|
||||||
|
..
|
||||||
|
} => *n,
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Calculate delta with sign
|
||||||
|
let delta = const_val * op_multiplier;
|
||||||
|
|
||||||
|
(target_name, delta)
|
||||||
|
}
|
||||||
|
_ => return None,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Check if then_body has carrier update before continue
|
||||||
|
// If so, we need to validate it matches
|
||||||
|
for stmt in then_body {
|
||||||
|
if let ASTNode::Assignment { target, .. } = stmt {
|
||||||
|
if let ASTNode::Variable { name, .. } = target.as_ref() {
|
||||||
|
if name == &carrier_name {
|
||||||
|
// There's a carrier update before continue
|
||||||
|
// For now, we'll just check it exists
|
||||||
|
// Could validate it matches the pattern later
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Some(ContinuePatternInfo {
|
||||||
|
carrier_name,
|
||||||
|
delta,
|
||||||
|
body_stmts,
|
||||||
|
rest_stmts,
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Phase 143-P0: Parse Number/Digit Pattern Detection
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
/// Parse number pattern information
|
||||||
|
///
|
||||||
|
/// This struct holds the extracted information from a recognized parse_number pattern.
|
||||||
|
#[derive(Debug, Clone, PartialEq)]
|
||||||
|
pub struct ParseNumberInfo {
|
||||||
|
/// Carrier variable name (e.g., "i")
|
||||||
|
pub carrier_name: String,
|
||||||
|
/// Constant step increment (e.g., 1 for `i = i + 1`)
|
||||||
|
pub delta: i64,
|
||||||
|
/// Body statements before the break check (may be empty)
|
||||||
|
pub body_stmts: Vec<ASTNode>,
|
||||||
|
/// Rest statements after break check (usually includes result append and carrier update)
|
||||||
|
pub rest_stmts: Vec<ASTNode>,
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Detect parse_number / digit collection pattern in loop body
|
||||||
|
///
|
||||||
|
/// Phase 143-P0: Pattern with break in THEN clause (opposite of skip_whitespace)
|
||||||
|
///
|
||||||
|
/// Pattern structure:
|
||||||
|
/// ```
|
||||||
|
/// loop(cond) {
|
||||||
|
/// // ... optional body statements (ch, digit_pos computation)
|
||||||
|
/// if invalid_cond {
|
||||||
|
/// break
|
||||||
|
/// }
|
||||||
|
/// // ... rest statements (result append, carrier update)
|
||||||
|
/// carrier = carrier + const
|
||||||
|
/// }
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// Recognized pattern:
|
||||||
|
/// - parse_number: `i < len`, `if digit_pos < 0 { break }`, `i = i + 1`
|
||||||
|
///
|
||||||
|
/// # Arguments
|
||||||
|
///
|
||||||
|
/// * `body` - Loop body statements to analyze
|
||||||
|
///
|
||||||
|
/// # Returns
|
||||||
|
///
|
||||||
|
/// `Some(ParseNumberInfo)` if the pattern matches, `None` otherwise
|
||||||
|
///
|
||||||
|
/// # Notes
|
||||||
|
///
|
||||||
|
/// This is complementary to skip_whitespace pattern (which has break in ELSE clause).
|
||||||
|
/// Used by loop_canonicalizer (Phase 143) for digit collection patterns.
|
||||||
|
pub fn detect_parse_number_pattern(body: &[ASTNode]) -> Option<ParseNumberInfo> {
|
||||||
|
if body.is_empty() {
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Find the if statement with break in THEN clause
|
||||||
|
let mut if_idx = None;
|
||||||
|
for (i, stmt) in body.iter().enumerate() {
|
||||||
|
if let ASTNode::If {
|
||||||
|
then_body,
|
||||||
|
else_body,
|
||||||
|
..
|
||||||
|
} = stmt
|
||||||
|
{
|
||||||
|
// Check if then_body contains break and else_body is None
|
||||||
|
if else_body.is_none()
|
||||||
|
&& then_body.len() == 1
|
||||||
|
&& matches!(then_body[0], ASTNode::Break { .. })
|
||||||
|
{
|
||||||
|
if_idx = Some(i);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let if_idx = if_idx?;
|
||||||
|
|
||||||
|
// Extract body statements before the if
|
||||||
|
let body_stmts = body[..if_idx].to_vec();
|
||||||
|
|
||||||
|
// Extract rest statements after the if (should include carrier update)
|
||||||
|
let rest_stmts = body[if_idx + 1..].to_vec();
|
||||||
|
|
||||||
|
if rest_stmts.is_empty() {
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Find carrier update in rest_stmts (last statement should be carrier = carrier + const)
|
||||||
|
let last_stmt = &rest_stmts[rest_stmts.len() - 1];
|
||||||
|
|
||||||
|
let (carrier_name, delta) = match last_stmt {
|
||||||
|
ASTNode::Assignment { target, value, .. } => {
|
||||||
|
// Extract target variable name
|
||||||
|
let target_name = match target.as_ref() {
|
||||||
|
ASTNode::Variable { name, .. } => name.clone(),
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Value must be: target (+|-) const
|
||||||
|
match value.as_ref() {
|
||||||
|
ASTNode::BinaryOp {
|
||||||
|
operator,
|
||||||
|
left,
|
||||||
|
right,
|
||||||
|
..
|
||||||
|
} => {
|
||||||
|
// Accept both Add (+1) and Subtract (-1)
|
||||||
|
let op_multiplier = match operator {
|
||||||
|
BinaryOperator::Add => 1,
|
||||||
|
BinaryOperator::Subtract => -1,
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Left must be same variable
|
||||||
|
let left_name = match left.as_ref() {
|
||||||
|
ASTNode::Variable { name, .. } => name,
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
if left_name != &target_name {
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Right must be integer literal
|
||||||
|
let const_val = match right.as_ref() {
|
||||||
|
ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(n),
|
||||||
|
..
|
||||||
|
} => *n,
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Calculate delta with sign
|
||||||
|
let delta = const_val * op_multiplier;
|
||||||
|
|
||||||
|
(target_name, delta)
|
||||||
|
}
|
||||||
|
_ => return None,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
|
Some(ParseNumberInfo {
|
||||||
|
carrier_name,
|
||||||
|
delta,
|
||||||
|
body_stmts,
|
||||||
|
rest_stmts,
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
// ============================================================================
|
// ============================================================================
|
||||||
// Phase 140-P4-A: Skip Whitespace Pattern Detection (SSOT)
|
// Phase 140-P4-A: Skip Whitespace Pattern Detection (SSOT)
|
||||||
// ============================================================================
|
// ============================================================================
|
||||||
@ -370,20 +694,27 @@ pub struct SkipWhitespaceInfo {
|
|||||||
pub body_stmts: Vec<ASTNode>,
|
pub body_stmts: Vec<ASTNode>,
|
||||||
}
|
}
|
||||||
|
|
||||||
/// Detect skip_whitespace pattern in loop body (Phase 140-P4-A SSOT)
|
/// Detect skip_whitespace / trim leading/trailing pattern in loop body
|
||||||
|
///
|
||||||
|
/// Phase 142 P0: Generalized to handle both +1 and -1 patterns
|
||||||
///
|
///
|
||||||
/// Pattern structure:
|
/// Pattern structure:
|
||||||
/// ```
|
/// ```
|
||||||
/// loop(cond) {
|
/// loop(cond) {
|
||||||
/// // ... optional body statements (Body)
|
/// // ... optional body statements (Body)
|
||||||
/// if check_cond {
|
/// if check_cond {
|
||||||
/// carrier = carrier + const
|
/// carrier = carrier (+|-) const
|
||||||
/// } else {
|
/// } else {
|
||||||
/// break
|
/// break
|
||||||
/// }
|
/// }
|
||||||
/// }
|
/// }
|
||||||
/// ```
|
/// ```
|
||||||
///
|
///
|
||||||
|
/// Recognized patterns:
|
||||||
|
/// - skip_whitespace: `p < len`, `p = p + 1`
|
||||||
|
/// - trim_leading: `start < end`, `start = start + 1`
|
||||||
|
/// - trim_trailing: `end > start`, `end = end - 1`
|
||||||
|
///
|
||||||
/// # Arguments
|
/// # Arguments
|
||||||
///
|
///
|
||||||
/// * `body` - Loop body statements to analyze
|
/// * `body` - Loop body statements to analyze
|
||||||
@ -394,7 +725,7 @@ pub struct SkipWhitespaceInfo {
|
|||||||
///
|
///
|
||||||
/// # Notes
|
/// # Notes
|
||||||
///
|
///
|
||||||
/// This is the SSOT for skip_whitespace pattern detection.
|
/// This is the SSOT for skip_whitespace/trim pattern detection.
|
||||||
/// Used by both loop_canonicalizer (Phase 137) and future pattern analyzers.
|
/// Used by both loop_canonicalizer (Phase 137) and future pattern analyzers.
|
||||||
pub fn detect_skip_whitespace_pattern(body: &[ASTNode]) -> Option<SkipWhitespaceInfo> {
|
pub fn detect_skip_whitespace_pattern(body: &[ASTNode]) -> Option<SkipWhitespaceInfo> {
|
||||||
if body.is_empty() {
|
if body.is_empty() {
|
||||||
@ -413,7 +744,7 @@ pub fn detect_skip_whitespace_pattern(body: &[ASTNode]) -> Option<SkipWhitespace
|
|||||||
_ => return None,
|
_ => return None,
|
||||||
};
|
};
|
||||||
|
|
||||||
// Then branch must be single assignment: carrier = carrier + const
|
// Then branch must be single assignment: carrier = carrier (+|-) const
|
||||||
if then_body.len() != 1 {
|
if then_body.len() != 1 {
|
||||||
return None;
|
return None;
|
||||||
}
|
}
|
||||||
@ -426,14 +757,21 @@ pub fn detect_skip_whitespace_pattern(body: &[ASTNode]) -> Option<SkipWhitespace
|
|||||||
_ => return None,
|
_ => return None,
|
||||||
};
|
};
|
||||||
|
|
||||||
// Value must be: target + const
|
// Value must be: target (+|-) const
|
||||||
match value.as_ref() {
|
match value.as_ref() {
|
||||||
ASTNode::BinaryOp {
|
ASTNode::BinaryOp {
|
||||||
operator: BinaryOperator::Add,
|
operator,
|
||||||
left,
|
left,
|
||||||
right,
|
right,
|
||||||
..
|
..
|
||||||
} => {
|
} => {
|
||||||
|
// Phase 142 P0: Accept both Add (+1) and Subtract (-1)
|
||||||
|
let op_multiplier = match operator {
|
||||||
|
BinaryOperator::Add => 1,
|
||||||
|
BinaryOperator::Subtract => -1,
|
||||||
|
_ => return None,
|
||||||
|
};
|
||||||
|
|
||||||
// Left must be same variable
|
// Left must be same variable
|
||||||
let left_name = match left.as_ref() {
|
let left_name = match left.as_ref() {
|
||||||
ASTNode::Variable { name, .. } => name,
|
ASTNode::Variable { name, .. } => name,
|
||||||
@ -445,7 +783,7 @@ pub fn detect_skip_whitespace_pattern(body: &[ASTNode]) -> Option<SkipWhitespace
|
|||||||
}
|
}
|
||||||
|
|
||||||
// Right must be integer literal
|
// Right must be integer literal
|
||||||
let delta = match right.as_ref() {
|
let const_val = match right.as_ref() {
|
||||||
ASTNode::Literal {
|
ASTNode::Literal {
|
||||||
value: LiteralValue::Integer(n),
|
value: LiteralValue::Integer(n),
|
||||||
..
|
..
|
||||||
@ -453,6 +791,9 @@ pub fn detect_skip_whitespace_pattern(body: &[ASTNode]) -> Option<SkipWhitespace
|
|||||||
_ => return None,
|
_ => return None,
|
||||||
};
|
};
|
||||||
|
|
||||||
|
// Calculate delta with sign (e.g., +1 or -1)
|
||||||
|
let delta = const_val * op_multiplier;
|
||||||
|
|
||||||
(target_name, delta)
|
(target_name, delta)
|
||||||
}
|
}
|
||||||
_ => return None,
|
_ => return None,
|
||||||
|
|||||||
@ -67,3 +67,9 @@ pub(in crate::mir::builder) use router::{route_loop_pattern, LoopPatternContext}
|
|||||||
|
|
||||||
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT (crate-wide visibility)
|
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT (crate-wide visibility)
|
||||||
pub(crate) use ast_feature_extractor::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
pub(crate) use ast_feature_extractor::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
||||||
|
|
||||||
|
// Phase 142-P1: Re-export continue pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use ast_feature_extractor::{detect_continue_pattern, ContinuePatternInfo};
|
||||||
|
|
||||||
|
// Phase 143-P0: Re-export parse_number pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use ast_feature_extractor::{detect_parse_number_pattern, ParseNumberInfo};
|
||||||
|
|||||||
@ -57,6 +57,12 @@ pub(in crate::mir::builder) mod utils;
|
|||||||
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT (crate-wide visibility)
|
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT (crate-wide visibility)
|
||||||
pub(crate) use joinir::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
pub(crate) use joinir::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
||||||
|
|
||||||
|
// Phase 142-P1: Re-export continue pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use joinir::{detect_continue_pattern, ContinuePatternInfo};
|
||||||
|
|
||||||
|
// Phase 143-P0: Re-export parse_number pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use joinir::{detect_parse_number_pattern, ParseNumberInfo};
|
||||||
|
|
||||||
impl super::MirBuilder {
|
impl super::MirBuilder {
|
||||||
/// Control-flow: block
|
/// Control-flow: block
|
||||||
pub(super) fn cf_block(&mut self, statements: Vec<ASTNode>) -> Result<ValueId, String> {
|
pub(super) fn cf_block(&mut self, statements: Vec<ASTNode>) -> Result<ValueId, String> {
|
||||||
|
|||||||
@ -7,7 +7,10 @@ use crate::ast::ASTNode;
|
|||||||
use crate::mir::loop_pattern_detection::LoopPatternKind;
|
use crate::mir::loop_pattern_detection::LoopPatternKind;
|
||||||
|
|
||||||
use super::capability_guard::{CapabilityTag, RoutingDecision};
|
use super::capability_guard::{CapabilityTag, RoutingDecision};
|
||||||
use super::pattern_recognizer::try_extract_skip_whitespace_pattern;
|
use super::pattern_recognizer::{
|
||||||
|
try_extract_continue_pattern, try_extract_parse_number_pattern,
|
||||||
|
try_extract_skip_whitespace_pattern,
|
||||||
|
};
|
||||||
use super::skeleton_types::{
|
use super::skeleton_types::{
|
||||||
CarrierRole, CarrierSlot, ExitContract, LoopSkeleton, SkeletonStep, UpdateKind,
|
CarrierRole, CarrierSlot, ExitContract, LoopSkeleton, SkeletonStep, UpdateKind,
|
||||||
};
|
};
|
||||||
@ -16,9 +19,12 @@ use super::skeleton_types::{
|
|||||||
// Canonicalization Entry Point
|
// Canonicalization Entry Point
|
||||||
// ============================================================================
|
// ============================================================================
|
||||||
|
|
||||||
/// Canonicalize a loop AST into LoopSkeleton (Phase 3: skip_whitespace pattern recognition)
|
/// Canonicalize a loop AST into LoopSkeleton
|
||||||
///
|
///
|
||||||
/// Currently supports only the skip_whitespace pattern:
|
/// Phase 143-P0: Now supports parse_number pattern in addition to skip_whitespace and continue
|
||||||
|
///
|
||||||
|
/// Supported patterns:
|
||||||
|
/// 1. Skip whitespace (break in ELSE clause):
|
||||||
/// ```
|
/// ```
|
||||||
/// loop(cond) {
|
/// loop(cond) {
|
||||||
/// // ... optional body statements
|
/// // ... optional body statements
|
||||||
@ -30,6 +36,31 @@ use super::skeleton_types::{
|
|||||||
/// }
|
/// }
|
||||||
/// ```
|
/// ```
|
||||||
///
|
///
|
||||||
|
/// 2. Parse number (break in THEN clause):
|
||||||
|
/// ```
|
||||||
|
/// loop(cond) {
|
||||||
|
/// // ... optional body statements (ch, digit_pos computation)
|
||||||
|
/// if invalid_cond {
|
||||||
|
/// break
|
||||||
|
/// }
|
||||||
|
/// // ... rest statements (result append)
|
||||||
|
/// carrier = carrier + step
|
||||||
|
/// }
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// 3. Continue pattern:
|
||||||
|
/// ```
|
||||||
|
/// loop(cond) {
|
||||||
|
/// // ... optional body statements
|
||||||
|
/// if skip_cond {
|
||||||
|
/// carrier = carrier + step // Optional
|
||||||
|
/// continue
|
||||||
|
/// }
|
||||||
|
/// // ... rest statements
|
||||||
|
/// carrier = carrier + step
|
||||||
|
/// }
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
/// All other patterns return Fail-Fast with detailed reasoning.
|
/// All other patterns return Fail-Fast with detailed reasoning.
|
||||||
///
|
///
|
||||||
/// # Arguments
|
/// # Arguments
|
||||||
@ -51,6 +82,122 @@ pub fn canonicalize_loop_expr(
|
|||||||
_ => return Err(format!("Expected Loop node, got: {:?}", loop_expr)),
|
_ => return Err(format!("Expected Loop node, got: {:?}", loop_expr)),
|
||||||
};
|
};
|
||||||
|
|
||||||
|
// Phase 142-P1: Try to extract continue pattern first
|
||||||
|
if let Some((carrier_name, delta, body_stmts, rest_stmts)) = try_extract_continue_pattern(body)
|
||||||
|
{
|
||||||
|
// Build skeleton for continue pattern
|
||||||
|
let mut skeleton = LoopSkeleton::new(span);
|
||||||
|
|
||||||
|
// Step 1: Header condition
|
||||||
|
skeleton.steps.push(SkeletonStep::HeaderCond {
|
||||||
|
expr: Box::new(condition.clone()),
|
||||||
|
});
|
||||||
|
|
||||||
|
// Step 2: Body statements (if any)
|
||||||
|
if !body_stmts.is_empty() {
|
||||||
|
skeleton
|
||||||
|
.steps
|
||||||
|
.push(SkeletonStep::Body { stmts: body_stmts });
|
||||||
|
}
|
||||||
|
|
||||||
|
// Step 3: Rest statements (if any, excluding carrier update)
|
||||||
|
// For now, we include all rest_stmts in Body
|
||||||
|
// The actual carrier update is implicit in the Update step
|
||||||
|
if !rest_stmts.is_empty() {
|
||||||
|
// Remove the last statement (carrier update) from rest_stmts
|
||||||
|
let mut rest_body = rest_stmts;
|
||||||
|
if !rest_body.is_empty() {
|
||||||
|
rest_body.pop();
|
||||||
|
}
|
||||||
|
if !rest_body.is_empty() {
|
||||||
|
skeleton.steps.push(SkeletonStep::Body { stmts: rest_body });
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Step 4: Update step
|
||||||
|
skeleton.steps.push(SkeletonStep::Update {
|
||||||
|
carrier_name: carrier_name.clone(),
|
||||||
|
update_kind: UpdateKind::ConstStep { delta },
|
||||||
|
});
|
||||||
|
|
||||||
|
// Add carrier slot
|
||||||
|
skeleton.carriers.push(CarrierSlot {
|
||||||
|
name: carrier_name,
|
||||||
|
role: CarrierRole::Counter,
|
||||||
|
update_kind: UpdateKind::ConstStep { delta },
|
||||||
|
});
|
||||||
|
|
||||||
|
// Set exit contract for continue pattern
|
||||||
|
skeleton.exits = ExitContract {
|
||||||
|
has_break: false,
|
||||||
|
has_continue: true,
|
||||||
|
has_return: false,
|
||||||
|
break_has_value: false,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Phase 142-P1: Route to Pattern4Continue
|
||||||
|
let decision = RoutingDecision::success(LoopPatternKind::Pattern4Continue);
|
||||||
|
return Ok((skeleton, decision));
|
||||||
|
}
|
||||||
|
|
||||||
|
// Phase 143-P0: Try to extract parse_number pattern (break in THEN clause)
|
||||||
|
if let Some((carrier_name, delta, body_stmts, rest_stmts)) =
|
||||||
|
try_extract_parse_number_pattern(body)
|
||||||
|
{
|
||||||
|
// Build skeleton for parse_number pattern
|
||||||
|
let mut skeleton = LoopSkeleton::new(span);
|
||||||
|
|
||||||
|
// Step 1: Header condition
|
||||||
|
skeleton.steps.push(SkeletonStep::HeaderCond {
|
||||||
|
expr: Box::new(condition.clone()),
|
||||||
|
});
|
||||||
|
|
||||||
|
// Step 2: Body statements before break check (if any)
|
||||||
|
if !body_stmts.is_empty() {
|
||||||
|
skeleton
|
||||||
|
.steps
|
||||||
|
.push(SkeletonStep::Body { stmts: body_stmts });
|
||||||
|
}
|
||||||
|
|
||||||
|
// Step 3: Rest statements after break check (if any, excluding carrier update)
|
||||||
|
// The carrier update is implicit in the Update step
|
||||||
|
if !rest_stmts.is_empty() {
|
||||||
|
// Remove the last statement (carrier update) from rest_stmts
|
||||||
|
let mut rest_body = rest_stmts;
|
||||||
|
if !rest_body.is_empty() {
|
||||||
|
rest_body.pop();
|
||||||
|
}
|
||||||
|
if !rest_body.is_empty() {
|
||||||
|
skeleton.steps.push(SkeletonStep::Body { stmts: rest_body });
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Step 4: Update step
|
||||||
|
skeleton.steps.push(SkeletonStep::Update {
|
||||||
|
carrier_name: carrier_name.clone(),
|
||||||
|
update_kind: UpdateKind::ConstStep { delta },
|
||||||
|
});
|
||||||
|
|
||||||
|
// Add carrier slot
|
||||||
|
skeleton.carriers.push(CarrierSlot {
|
||||||
|
name: carrier_name,
|
||||||
|
role: CarrierRole::Counter,
|
||||||
|
update_kind: UpdateKind::ConstStep { delta },
|
||||||
|
});
|
||||||
|
|
||||||
|
// Set exit contract for parse_number pattern
|
||||||
|
skeleton.exits = ExitContract {
|
||||||
|
has_break: true,
|
||||||
|
has_continue: false,
|
||||||
|
has_return: false,
|
||||||
|
break_has_value: false,
|
||||||
|
};
|
||||||
|
|
||||||
|
// Phase 143-P0: Route to Pattern2Break (has_break=true)
|
||||||
|
let decision = RoutingDecision::success(LoopPatternKind::Pattern2Break);
|
||||||
|
return Ok((skeleton, decision));
|
||||||
|
}
|
||||||
|
|
||||||
// Phase 3: Try to extract skip_whitespace pattern
|
// Phase 3: Try to extract skip_whitespace pattern
|
||||||
if let Some((carrier_name, delta, body_stmts)) = try_extract_skip_whitespace_pattern(body) {
|
if let Some((carrier_name, delta, body_stmts)) = try_extract_skip_whitespace_pattern(body) {
|
||||||
// Build skeleton for skip_whitespace pattern
|
// Build skeleton for skip_whitespace pattern
|
||||||
@ -101,7 +248,8 @@ pub fn canonicalize_loop_expr(
|
|||||||
LoopSkeleton::new(span),
|
LoopSkeleton::new(span),
|
||||||
RoutingDecision::fail_fast(
|
RoutingDecision::fail_fast(
|
||||||
vec![CapabilityTag::ConstStep],
|
vec![CapabilityTag::ConstStep],
|
||||||
"Phase 3: Loop does not match skip_whitespace pattern".to_string(),
|
"Phase 143-P0: Loop does not match skip_whitespace, parse_number, or continue pattern"
|
||||||
|
.to_string(),
|
||||||
),
|
),
|
||||||
))
|
))
|
||||||
}
|
}
|
||||||
@ -348,12 +496,13 @@ mod tests {
|
|||||||
|
|
||||||
let (_, decision) = result.unwrap();
|
let (_, decision) = result.unwrap();
|
||||||
assert!(decision.is_fail_fast());
|
assert!(decision.is_fail_fast());
|
||||||
assert!(decision.notes[0].contains("does not match skip_whitespace pattern"));
|
assert!(decision.notes[0]
|
||||||
|
.contains("does not match skip_whitespace, parse_number, or continue pattern"));
|
||||||
}
|
}
|
||||||
|
|
||||||
#[test]
|
#[test]
|
||||||
fn test_skip_whitespace_fails_with_wrong_delta() {
|
fn test_skip_whitespace_fails_with_wrong_delta() {
|
||||||
// Build pattern with wrong update (p = p - 1 instead of p = p + 1)
|
// Build pattern with wrong update (p = p * 2, not +/-)
|
||||||
let loop_node = ASTNode::Loop {
|
let loop_node = ASTNode::Loop {
|
||||||
condition: Box::new(ASTNode::Literal {
|
condition: Box::new(ASTNode::Literal {
|
||||||
value: LiteralValue::Bool(true),
|
value: LiteralValue::Bool(true),
|
||||||
@ -370,11 +519,75 @@ mod tests {
|
|||||||
span: Span::unknown(),
|
span: Span::unknown(),
|
||||||
}),
|
}),
|
||||||
value: Box::new(ASTNode::BinaryOp {
|
value: Box::new(ASTNode::BinaryOp {
|
||||||
operator: BinaryOperator::Subtract, // Wrong operator
|
operator: BinaryOperator::Multiply, // Wrong operator
|
||||||
left: Box::new(ASTNode::Variable {
|
left: Box::new(ASTNode::Variable {
|
||||||
name: "p".to_string(),
|
name: "p".to_string(),
|
||||||
span: Span::unknown(),
|
span: Span::unknown(),
|
||||||
}),
|
}),
|
||||||
|
right: Box::new(ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(2),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}],
|
||||||
|
else_body: Some(vec![ASTNode::Break {
|
||||||
|
span: Span::unknown(),
|
||||||
|
}]),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}],
|
||||||
|
span: Span::unknown(),
|
||||||
|
};
|
||||||
|
|
||||||
|
let result = canonicalize_loop_expr(&loop_node);
|
||||||
|
assert!(result.is_ok());
|
||||||
|
|
||||||
|
let (_, decision) = result.unwrap();
|
||||||
|
assert!(decision.is_fail_fast());
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_trim_leading_pattern_recognized() {
|
||||||
|
// Phase 142 P0: Test trim_leading pattern (start = start + 1)
|
||||||
|
// Build: loop(start < end) { if is_ws { start = start + 1 } else { break } }
|
||||||
|
let loop_node = ASTNode::Loop {
|
||||||
|
condition: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Less,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "start".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Variable {
|
||||||
|
name: "end".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
body: vec![ASTNode::If {
|
||||||
|
condition: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Equal,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "is_ws".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(1),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
then_body: vec![ASTNode::Assignment {
|
||||||
|
target: Box::new(ASTNode::Variable {
|
||||||
|
name: "start".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
value: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Add,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "start".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
right: Box::new(ASTNode::Literal {
|
right: Box::new(ASTNode::Literal {
|
||||||
value: LiteralValue::Integer(1),
|
value: LiteralValue::Integer(1),
|
||||||
span: Span::unknown(),
|
span: Span::unknown(),
|
||||||
@ -394,7 +607,379 @@ mod tests {
|
|||||||
let result = canonicalize_loop_expr(&loop_node);
|
let result = canonicalize_loop_expr(&loop_node);
|
||||||
assert!(result.is_ok());
|
assert!(result.is_ok());
|
||||||
|
|
||||||
let (_, decision) = result.unwrap();
|
let (skeleton, decision) = result.unwrap();
|
||||||
assert!(decision.is_fail_fast());
|
|
||||||
|
// Verify success
|
||||||
|
assert!(decision.is_success());
|
||||||
|
// chosen == Pattern2Break (ExitContract priority)
|
||||||
|
assert_eq!(decision.chosen, Some(LoopPatternKind::Pattern2Break));
|
||||||
|
// missing_caps == []
|
||||||
|
assert!(decision.missing_caps.is_empty());
|
||||||
|
|
||||||
|
// Verify skeleton structure
|
||||||
|
assert_eq!(skeleton.steps.len(), 2); // HeaderCond + Update
|
||||||
|
assert!(matches!(skeleton.steps[0], SkeletonStep::HeaderCond { .. }));
|
||||||
|
assert!(matches!(skeleton.steps[1], SkeletonStep::Update { .. }));
|
||||||
|
|
||||||
|
// Verify carrier
|
||||||
|
assert_eq!(skeleton.carriers.len(), 1);
|
||||||
|
assert_eq!(skeleton.carriers[0].name, "start");
|
||||||
|
assert_eq!(skeleton.carriers[0].role, CarrierRole::Counter);
|
||||||
|
match &skeleton.carriers[0].update_kind {
|
||||||
|
UpdateKind::ConstStep { delta } => assert_eq!(*delta, 1),
|
||||||
|
_ => panic!("Expected ConstStep update"),
|
||||||
|
}
|
||||||
|
|
||||||
|
// Verify exit contract
|
||||||
|
assert!(skeleton.exits.has_break);
|
||||||
|
assert!(!skeleton.exits.has_continue);
|
||||||
|
assert!(!skeleton.exits.has_return);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_simple_continue_pattern_recognized() {
|
||||||
|
// Phase 142 P1: Test simple continue pattern
|
||||||
|
// Build: loop(i < n) { if is_even { i = i + 1; continue } sum = sum + i; i = i + 1 }
|
||||||
|
let loop_node = ASTNode::Loop {
|
||||||
|
condition: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Less,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "i".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Variable {
|
||||||
|
name: "n".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
body: vec![
|
||||||
|
// if is_even { i = i + 1; continue }
|
||||||
|
ASTNode::If {
|
||||||
|
condition: Box::new(ASTNode::Variable {
|
||||||
|
name: "is_even".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
then_body: vec![
|
||||||
|
ASTNode::Assignment {
|
||||||
|
target: Box::new(ASTNode::Variable {
|
||||||
|
name: "i".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
value: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Add,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "i".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(1),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
},
|
||||||
|
ASTNode::Continue {
|
||||||
|
span: Span::unknown(),
|
||||||
|
},
|
||||||
|
],
|
||||||
|
else_body: None,
|
||||||
|
span: Span::unknown(),
|
||||||
|
},
|
||||||
|
// sum = sum + i
|
||||||
|
ASTNode::Assignment {
|
||||||
|
target: Box::new(ASTNode::Variable {
|
||||||
|
name: "sum".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
value: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Add,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "sum".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Variable {
|
||||||
|
name: "i".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
},
|
||||||
|
// i = i + 1
|
||||||
|
ASTNode::Assignment {
|
||||||
|
target: Box::new(ASTNode::Variable {
|
||||||
|
name: "i".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
value: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Add,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "i".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(1),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
},
|
||||||
|
],
|
||||||
|
span: Span::unknown(),
|
||||||
|
};
|
||||||
|
|
||||||
|
let result = canonicalize_loop_expr(&loop_node);
|
||||||
|
assert!(result.is_ok());
|
||||||
|
|
||||||
|
let (skeleton, decision) = result.unwrap();
|
||||||
|
|
||||||
|
// Verify success
|
||||||
|
assert!(decision.is_success());
|
||||||
|
// chosen == Pattern4Continue
|
||||||
|
assert_eq!(decision.chosen, Some(LoopPatternKind::Pattern4Continue));
|
||||||
|
// missing_caps == []
|
||||||
|
assert!(decision.missing_caps.is_empty());
|
||||||
|
|
||||||
|
// Verify skeleton structure
|
||||||
|
// HeaderCond + Body (sum = sum + i) + Update
|
||||||
|
assert!(skeleton.steps.len() >= 2);
|
||||||
|
assert!(matches!(skeleton.steps[0], SkeletonStep::HeaderCond { .. }));
|
||||||
|
|
||||||
|
// Verify carrier
|
||||||
|
assert_eq!(skeleton.carriers.len(), 1);
|
||||||
|
assert_eq!(skeleton.carriers[0].name, "i");
|
||||||
|
assert_eq!(skeleton.carriers[0].role, CarrierRole::Counter);
|
||||||
|
match &skeleton.carriers[0].update_kind {
|
||||||
|
UpdateKind::ConstStep { delta } => assert_eq!(*delta, 1),
|
||||||
|
_ => panic!("Expected ConstStep update"),
|
||||||
|
}
|
||||||
|
|
||||||
|
// Verify exit contract
|
||||||
|
assert!(!skeleton.exits.has_break);
|
||||||
|
assert!(skeleton.exits.has_continue);
|
||||||
|
assert!(!skeleton.exits.has_return);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_trim_trailing_pattern_recognized() {
|
||||||
|
// Phase 142 P0: Test trim_trailing pattern (end = end - 1)
|
||||||
|
// Build: loop(end > start) { if is_ws { end = end - 1 } else { break } }
|
||||||
|
let loop_node = ASTNode::Loop {
|
||||||
|
condition: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Greater,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "end".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Variable {
|
||||||
|
name: "start".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
body: vec![ASTNode::If {
|
||||||
|
condition: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Equal,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "is_ws".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(1),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
then_body: vec![ASTNode::Assignment {
|
||||||
|
target: Box::new(ASTNode::Variable {
|
||||||
|
name: "end".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
value: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Subtract,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "end".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(1),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}],
|
||||||
|
else_body: Some(vec![ASTNode::Break {
|
||||||
|
span: Span::unknown(),
|
||||||
|
}]),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}],
|
||||||
|
span: Span::unknown(),
|
||||||
|
};
|
||||||
|
|
||||||
|
let result = canonicalize_loop_expr(&loop_node);
|
||||||
|
assert!(result.is_ok());
|
||||||
|
|
||||||
|
let (skeleton, decision) = result.unwrap();
|
||||||
|
|
||||||
|
// Verify success
|
||||||
|
assert!(decision.is_success());
|
||||||
|
// chosen == Pattern2Break (ExitContract priority)
|
||||||
|
assert_eq!(decision.chosen, Some(LoopPatternKind::Pattern2Break));
|
||||||
|
// missing_caps == []
|
||||||
|
assert!(decision.missing_caps.is_empty());
|
||||||
|
|
||||||
|
// Verify skeleton structure
|
||||||
|
assert_eq!(skeleton.steps.len(), 2); // HeaderCond + Update
|
||||||
|
assert!(matches!(skeleton.steps[0], SkeletonStep::HeaderCond { .. }));
|
||||||
|
assert!(matches!(skeleton.steps[1], SkeletonStep::Update { .. }));
|
||||||
|
|
||||||
|
// Verify carrier
|
||||||
|
assert_eq!(skeleton.carriers.len(), 1);
|
||||||
|
assert_eq!(skeleton.carriers[0].name, "end");
|
||||||
|
assert_eq!(skeleton.carriers[0].role, CarrierRole::Counter);
|
||||||
|
match &skeleton.carriers[0].update_kind {
|
||||||
|
UpdateKind::ConstStep { delta } => assert_eq!(*delta, -1), // Negative step
|
||||||
|
_ => panic!("Expected ConstStep update"),
|
||||||
|
}
|
||||||
|
|
||||||
|
// Verify exit contract
|
||||||
|
assert!(skeleton.exits.has_break);
|
||||||
|
assert!(!skeleton.exits.has_continue);
|
||||||
|
assert!(!skeleton.exits.has_return);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_parse_number_pattern_recognized() {
|
||||||
|
// Phase 143-P0: Test parse_number pattern (break in THEN clause)
|
||||||
|
// Build: loop(i < len) { digit_pos = digits.indexOf(ch); if digit_pos < 0 { break } result = result + ch; i = i + 1 }
|
||||||
|
let loop_node = ASTNode::Loop {
|
||||||
|
condition: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Less,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "i".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Variable {
|
||||||
|
name: "len".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
body: vec![
|
||||||
|
// Body statement: digit_pos = digits.indexOf(ch)
|
||||||
|
ASTNode::Assignment {
|
||||||
|
target: Box::new(ASTNode::Variable {
|
||||||
|
name: "digit_pos".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
value: Box::new(ASTNode::FunctionCall {
|
||||||
|
name: "indexOf".to_string(),
|
||||||
|
arguments: vec![ASTNode::Variable {
|
||||||
|
name: "ch".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}],
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
},
|
||||||
|
// Break check: if digit_pos < 0 { break }
|
||||||
|
ASTNode::If {
|
||||||
|
condition: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Less,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "digit_pos".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(0),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
then_body: vec![ASTNode::Break {
|
||||||
|
span: Span::unknown(),
|
||||||
|
}],
|
||||||
|
else_body: None, // No else branch
|
||||||
|
span: Span::unknown(),
|
||||||
|
},
|
||||||
|
// Rest: result = result + ch
|
||||||
|
ASTNode::Assignment {
|
||||||
|
target: Box::new(ASTNode::Variable {
|
||||||
|
name: "result".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
value: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Add,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "result".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Variable {
|
||||||
|
name: "ch".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
},
|
||||||
|
// Carrier update: i = i + 1
|
||||||
|
ASTNode::Assignment {
|
||||||
|
target: Box::new(ASTNode::Variable {
|
||||||
|
name: "i".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
value: Box::new(ASTNode::BinaryOp {
|
||||||
|
operator: BinaryOperator::Add,
|
||||||
|
left: Box::new(ASTNode::Variable {
|
||||||
|
name: "i".to_string(),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
right: Box::new(ASTNode::Literal {
|
||||||
|
value: LiteralValue::Integer(1),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
}),
|
||||||
|
span: Span::unknown(),
|
||||||
|
},
|
||||||
|
],
|
||||||
|
span: Span::unknown(),
|
||||||
|
};
|
||||||
|
|
||||||
|
let result = canonicalize_loop_expr(&loop_node);
|
||||||
|
assert!(result.is_ok());
|
||||||
|
|
||||||
|
let (skeleton, decision) = result.unwrap();
|
||||||
|
|
||||||
|
// Verify success
|
||||||
|
assert!(decision.is_success());
|
||||||
|
// chosen == Pattern2Break (has_break=true)
|
||||||
|
assert_eq!(decision.chosen, Some(LoopPatternKind::Pattern2Break));
|
||||||
|
// missing_caps == []
|
||||||
|
assert!(decision.missing_caps.is_empty());
|
||||||
|
|
||||||
|
// Verify skeleton structure
|
||||||
|
// HeaderCond + Body (digit_pos assignment) + Body (result assignment) + Update
|
||||||
|
assert!(skeleton.steps.len() >= 3);
|
||||||
|
assert!(matches!(skeleton.steps[0], SkeletonStep::HeaderCond { .. }));
|
||||||
|
|
||||||
|
// Verify carrier
|
||||||
|
assert_eq!(skeleton.carriers.len(), 1);
|
||||||
|
assert_eq!(skeleton.carriers[0].name, "i");
|
||||||
|
assert_eq!(skeleton.carriers[0].role, CarrierRole::Counter);
|
||||||
|
match &skeleton.carriers[0].update_kind {
|
||||||
|
UpdateKind::ConstStep { delta } => assert_eq!(*delta, 1),
|
||||||
|
_ => panic!("Expected ConstStep update"),
|
||||||
|
}
|
||||||
|
|
||||||
|
// Verify exit contract
|
||||||
|
assert!(skeleton.exits.has_break);
|
||||||
|
assert!(!skeleton.exits.has_continue);
|
||||||
|
assert!(!skeleton.exits.has_return);
|
||||||
|
assert!(!skeleton.exits.break_has_value);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@ -4,7 +4,9 @@
|
|||||||
//! Provides backward-compatible wrappers for existing callsites.
|
//! Provides backward-compatible wrappers for existing callsites.
|
||||||
|
|
||||||
use crate::ast::ASTNode;
|
use crate::ast::ASTNode;
|
||||||
use crate::mir::{detect_skip_whitespace_pattern as ast_detect, SkipWhitespaceInfo};
|
use crate::mir::detect_continue_pattern;
|
||||||
|
use crate::mir::detect_parse_number_pattern as ast_detect_parse_number;
|
||||||
|
use crate::mir::detect_skip_whitespace_pattern as ast_detect;
|
||||||
|
|
||||||
// ============================================================================
|
// ============================================================================
|
||||||
// Skip Whitespace Pattern (Phase 140-P4-B SSOT Wrapper)
|
// Skip Whitespace Pattern (Phase 140-P4-B SSOT Wrapper)
|
||||||
@ -36,6 +38,81 @@ pub fn try_extract_skip_whitespace_pattern(
|
|||||||
ast_detect(body).map(|info| (info.carrier_name, info.delta, info.body_stmts))
|
ast_detect(body).map(|info| (info.carrier_name, info.delta, info.body_stmts))
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Parse Number Pattern (Phase 143-P0)
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
/// Try to extract parse_number pattern from loop
|
||||||
|
///
|
||||||
|
/// Pattern structure:
|
||||||
|
/// ```
|
||||||
|
/// loop(cond) {
|
||||||
|
/// // ... optional body statements (ch, digit_pos computation)
|
||||||
|
/// if invalid_cond {
|
||||||
|
/// break
|
||||||
|
/// }
|
||||||
|
/// // ... rest statements (result append, carrier update)
|
||||||
|
/// carrier = carrier + const
|
||||||
|
/// }
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// Returns (carrier_name, delta, body_stmts, rest_stmts) if pattern matches.
|
||||||
|
///
|
||||||
|
/// # Phase 143-P0: Parse Number Pattern Detection
|
||||||
|
///
|
||||||
|
/// This function delegates to `ast_feature_extractor::detect_parse_number_pattern`
|
||||||
|
/// for SSOT implementation.
|
||||||
|
pub fn try_extract_parse_number_pattern(
|
||||||
|
body: &[ASTNode],
|
||||||
|
) -> Option<(String, i64, Vec<ASTNode>, Vec<ASTNode>)> {
|
||||||
|
ast_detect_parse_number(body).map(|info| {
|
||||||
|
(
|
||||||
|
info.carrier_name,
|
||||||
|
info.delta,
|
||||||
|
info.body_stmts,
|
||||||
|
info.rest_stmts,
|
||||||
|
)
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
// ============================================================================
|
||||||
|
// Continue Pattern (Phase 142-P1)
|
||||||
|
// ============================================================================
|
||||||
|
|
||||||
|
/// Try to extract continue pattern from loop
|
||||||
|
///
|
||||||
|
/// Pattern structure:
|
||||||
|
/// ```
|
||||||
|
/// loop(cond) {
|
||||||
|
/// // ... optional body statements (Body)
|
||||||
|
/// if skip_cond {
|
||||||
|
/// carrier = carrier + const // Optional update before continue
|
||||||
|
/// continue
|
||||||
|
/// }
|
||||||
|
/// // ... rest of body statements (Rest)
|
||||||
|
/// carrier = carrier + const // Carrier update
|
||||||
|
/// }
|
||||||
|
/// ```
|
||||||
|
///
|
||||||
|
/// Returns (carrier_name, delta, body_stmts, rest_stmts) if pattern matches.
|
||||||
|
///
|
||||||
|
/// # Phase 142-P1: Continue Pattern Detection
|
||||||
|
///
|
||||||
|
/// This function delegates to `ast_feature_extractor::detect_continue_pattern`
|
||||||
|
/// for SSOT implementation.
|
||||||
|
pub fn try_extract_continue_pattern(
|
||||||
|
body: &[ASTNode],
|
||||||
|
) -> Option<(String, i64, Vec<ASTNode>, Vec<ASTNode>)> {
|
||||||
|
detect_continue_pattern(body).map(|info| {
|
||||||
|
(
|
||||||
|
info.carrier_name,
|
||||||
|
info.delta,
|
||||||
|
info.body_stmts,
|
||||||
|
info.rest_stmts,
|
||||||
|
)
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
#[cfg(test)]
|
#[cfg(test)]
|
||||||
mod tests {
|
mod tests {
|
||||||
use super::*;
|
use super::*;
|
||||||
|
|||||||
@ -58,6 +58,10 @@ pub use builder::MirBuilder;
|
|||||||
|
|
||||||
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT
|
// Phase 140-P4-A: Re-export for loop_canonicalizer SSOT
|
||||||
pub(crate) use builder::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
pub(crate) use builder::{detect_skip_whitespace_pattern, SkipWhitespaceInfo};
|
||||||
|
// Phase 142-P1: Re-export continue pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use builder::{detect_continue_pattern, ContinuePatternInfo};
|
||||||
|
// Phase 143-P0: Re-export parse_number pattern detection for loop_canonicalizer
|
||||||
|
pub(crate) use builder::{detect_parse_number_pattern, ParseNumberInfo};
|
||||||
pub use cfg_extractor::extract_cfg_info; // Phase 154: CFG extraction
|
pub use cfg_extractor::extract_cfg_info; // Phase 154: CFG extraction
|
||||||
pub use definitions::{CallFlags, Callee, MirCall}; // Unified call definitions
|
pub use definitions::{CallFlags, Callee, MirCall}; // Unified call definitions
|
||||||
pub use effect::{Effect, EffectMask};
|
pub use effect::{Effect, EffectMask};
|
||||||
|
|||||||
Reference in New Issue
Block a user