Files
hakorune/lang/src/vm/hakorune-vm/unaryop_handler.hako
nyash-codex df9068a555 feat(stage-b): Add FLOW keyword support + fix Stage-3 keyword conflicts
##  Fixed Issues

### 1. `local` keyword tokenization (commit 9aab64f7)
- Added Stage-3 gate for LOCAL/TRY/CATCH/THROW keywords
- LOCAL now only active when NYASH_PARSER_STAGE3=1

### 2. `env.local.get` keyword conflict
- File: `lang/src/compiler/entry/compiler_stageb.hako:21-23`
- Problem: `.local` in member access tokenized as `.LOCAL` keyword
- Fix: Commented out `env.local.get("HAKO_SOURCE")` line
- Fallback: Use `--source` argument (still functional)

### 3. `flow` keyword missing
- Added FLOW to TokenType enum (`src/tokenizer/kinds.rs`)
- Added "flow" → TokenType::FLOW mapping (`src/tokenizer/lex_ident.rs`)
- Added FLOW to Stage-3 gate (requires NYASH_PARSER_STAGE3=1)
- Added FLOW to parser statement dispatch (`src/parser/statements/mod.rs`)
- Added FLOW to declaration handler (`src/parser/statements/declarations.rs`)
- Updated box_declaration parser to accept BOX or FLOW (`src/parser/declarations/box_definition.rs`)
- Treat `flow FooBox {}` as syntactic sugar for `box FooBox {}`

### 4. Module namespace conversion
- Renamed `lang.compiler.builder.ssa.local` → `localvar` (avoid keyword)
- Renamed file `local.hako` → `local_ssa.hako`
- Converted 152 path-based using statements to namespace format
- Added 26+ entries to `nyash.toml` [modules] section

## ⚠️ Remaining Issues

### Stage-B selfhost compiler performance
- Stage-B compiler not producing output (hangs/times out after 10+ seconds)
- Excessive PHI debug output suggests compilation loop issue
- Needs investigation: infinite loop or N² algorithm in hako compiler

### Fallback JSON version mismatch
- Rust fallback (`--emit-mir-json`) emits MIR v1 JSON (schema_version: "1.0")
- Smoke tests expect MIR v0 JSON (`"version":0, "kind":"Program"`)
- stageb_helpers.sh fallback needs adjustment

## Test Status
- Parse errors: FIXED 
- Keyword conflicts: FIXED 
- Stage-B smoke tests: STILL FAILING  (performance issue)

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-02 04:13:17 +09:00

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// UnaryOpHandlerBox - UnaryOp instruction handler
// Handles: %dst = op_kind %operand (Neg/Not/BitNot)
using "lang/src/shared/common/string_helpers.hako" as StringHelpers
using selfhost.shared.common.string_ops as StringOps
using "lang/src/vm/boxes/result_box.hako" as Result
using "lang/src/vm/hakorune-vm/value_manager.hako" as ValueManagerBox
using "lang/src/vm/hakorune-vm/reg_guard.hako" as RegGuardBox
using "lang/src/vm/hakorune-vm/json_field_extractor.hako" as JsonFieldExtractor
using "lang/src/vm/hakorune-vm/core_bridge_ops.hako" as CoreBridgeOps
static box UnaryOpHandlerBox {
// Handle unaryop instruction
// inst_json: {"op":"unaryop","dst":3,"op_kind":"Neg","operand":1}
// Returns: Result.Ok(0) or Result.Err(message)
handle(inst_json, regs) { return CoreBridgeOps.apply_unary(inst_json, regs) }
}