Files
hakorune/apps/tests/phase200d_capture_minimal.hako
nyash-codex 32a91e31ac feat(joinir): Phase 200-B/C/D capture analysis + Phase 201-A reserved_value_ids infra
Phase 200-B: FunctionScopeCaptureAnalyzer implementation
- analyze_captured_vars_v2() with structural loop matching
- CapturedEnv for immutable function-scope variables
- ParamRole::Condition for condition-only variables

Phase 200-C: ConditionEnvBuilder extension
- build_with_captures() integrates CapturedEnv into ConditionEnv
- fn_body propagation through LoopPatternContext to Pattern 2

Phase 200-D: E2E verification
- capture detection working for base, limit, n etc.
- Test files: phase200d_capture_minimal.hako, phase200d_capture_in_condition.hako

Phase 201-A: MirBuilder reserved_value_ids infrastructure
- reserved_value_ids: HashSet<ValueId> field in MirBuilder
- next_value_id() skips reserved IDs
- merge/mod.rs sets/clears reserved IDs around JoinIR merge

Phase 201: JoinValueSpace design document
- Param/Local/PHI disjoint regions design
- API: alloc_param(), alloc_local(), reserve_phi()
- Migration plan for Pattern 1-4 lowerers

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-09 18:32:03 +09:00

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// Phase 200-D: Minimal capture test (Pattern 2)
// This test verifies that captured variables work in JoinIR Pattern 2
// without using substring or other unsupported methods.
//
// Key points:
// - base/offset are captured (function-scoped constants)
// - No substring/indexOf in body-local init (Phase 193 limitation)
// - Simple accumulation using captured value
// - Break condition: i == 100 (never true, just to trigger Pattern 2)
static box Main {
main() {
local base = 10 // Captured var (used in multiplication)
local offset = 5 // Captured var (used in addition)
local i = 0
local v = 0
local n = 3 // Loop 3 times
// Pattern 2: loop with break (break never fires)
loop(i < n) {
// Simple break condition that never fires
if i == 100 {
break
}
// Use captured variable in accumulation
// v = v + base
// For i=0: v = 0 + 10 = 10
// For i=1: v = 10 + 10 = 20
// For i=2: v = 20 + 10 = 30
v = v + base
i = i + 1
}
print(v) // Expected: 30
}
}