refactor(joinir): Phase 86 - Carrier init builder, debug migration, error tags
P1: Carrier Initialization Builder (HIGH) ✅ - New module: carrier_init_builder.rs (197 lines, 8 tests) - Refactored loop_header_phi_builder.rs (-34 lines) - Centralized CarrierInit value generation (SSOT) - Eliminates scattered match patterns across header PHI, exit line - Consistent debug output: [carrier_init_builder] format - Net: -34 lines of duplicated logic P2: Remaining DebugOutputBox Migration (QUICK) ✅ - Migrated carrier_info.rs::record_promoted_binding() - Uses DebugOutputBox for JOINIR_DEBUG checks - Maintains JOINIR_TEST_DEBUG override for test diagnostics - Consistent log formatting: [context/category] message - Net: +3 lines (SSOT migration) P3: Error Message Centralization (LOW) ✅ - New module: error_tags.rs (136 lines, 5 tests) - Migrated 3 error sites: * ownership/relay:runtime_unsupported (plan_validator.rs) * joinir/freeze (control_flow/mod.rs) * (ExitLine errors were debug messages, not returns) - Centralized error tag generation (freeze, exit_line_contract, ownership_relay_unsupported, etc.) - Net: +133 lines (SSOT module + tests) Total changes: - New files: carrier_init_builder.rs (197), error_tags.rs (136) - Modified: 6 files - Production code: +162 lines (SSOT investment) - Tests: 987/987 PASS (982→987, +5 new tests) - Phase 81 ExitLine: 2/2 PASS - Zero compilation errors/warnings Benefits: ✅ Single Responsibility: Each helper has one concern ✅ Testability: 13 new unit tests (8 carrier init, 5 error tags) ✅ Consistency: Uniform debug/error formatting ✅ SSOT: Centralized CarrierInit and error tag generation ✅ Discoverability: Easy to find all error types 🤖 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
@ -0,0 +1,197 @@
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/// CarrierInitBuilder: Centralized CarrierInit value generation
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///
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/// # Purpose
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/// Provides single source of truth for generating MIR values from CarrierInit enum.
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/// Eliminates scattered match patterns across header PHI, exit line, boundary injection.
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///
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/// # Phase 86 Context
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/// - Consolidates ~100 lines of duplicated CarrierInit matching logic
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/// - Used by: loop_header_phi_builder, exit_line/meta_collector, boundary_builder
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/// - Ensures consistent const generation and debug output
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///
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/// # Design Principles
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/// - **SSOT**: Single function for all CarrierInit → ValueId generation
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/// - **Testability**: Pure function, easy to unit test
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/// - **Consistency**: Uniform debug output format
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use crate::mir::builder::MirBuilder;
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use crate::mir::join_ir::lowering::carrier_info::CarrierInit;
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use crate::mir::value_id::ValueId;
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use crate::mir::types::ConstValue;
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use crate::mir::MirInstruction;
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/// Generate a ValueId for the given CarrierInit policy
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///
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/// # Arguments
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/// * `builder` - MIR builder for emitting const instructions
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/// * `init` - Initialization policy (FromHost, BoolConst, LoopLocalZero)
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/// * `host_id` - Host variable's ValueId (used for FromHost)
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/// * `name` - Carrier variable name (for debug output)
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/// * `debug` - Enable debug output
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///
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/// # Returns
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/// * `ValueId` - Either host_id (FromHost) or newly emitted const
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///
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/// # Examples
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/// ```
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/// // FromHost: Returns host_id directly
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/// let value = init_value(&mut builder, &CarrierInit::FromHost, host_id, "counter", false);
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/// // value == host_id
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///
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/// // BoolConst: Emits new const instruction
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/// let value = init_value(&mut builder, &CarrierInit::BoolConst(true), host_id, "flag", true);
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/// // Emits: %N = Const { dst: ValueId(N), value: Bool(true) }
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/// // Debug: "[carrier_init_builder] 'flag': BoolConst(true) -> ValueId(N)"
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///
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/// // LoopLocalZero: Emits Integer(0) const
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/// let value = init_value(&mut builder, &CarrierInit::LoopLocalZero, host_id, "digit", false);
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/// // Emits: %N = Const { dst: ValueId(N), value: Integer(0) }
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/// ```
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pub fn init_value(
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builder: &mut MirBuilder,
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init: &CarrierInit,
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host_id: ValueId,
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name: &str,
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debug: bool,
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) -> ValueId {
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match init {
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CarrierInit::FromHost => {
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// Use host variable's ValueId directly (no const emission needed)
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if debug {
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eprintln!(
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"[carrier_init_builder] '{}': FromHost -> ValueId({})",
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name, host_id.0
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);
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}
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host_id
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}
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CarrierInit::BoolConst(val) => {
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// Generate explicit bool constant (used for ConditionOnly carriers)
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let const_id = builder.next_value_id();
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let _ = builder.emit_instruction(MirInstruction::Const {
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dst: const_id,
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value: ConstValue::Bool(*val),
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});
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if debug {
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eprintln!(
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"[carrier_init_builder] '{}': BoolConst({}) -> ValueId({})",
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name, val, const_id.0
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);
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}
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const_id
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}
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CarrierInit::LoopLocalZero => {
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// Generate Integer(0) const for loop-local derived carriers (no host slot)
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let const_id = builder.next_value_id();
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let _ = builder.emit_instruction(MirInstruction::Const {
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dst: const_id,
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value: ConstValue::Integer(0),
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});
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if debug {
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eprintln!(
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"[carrier_init_builder] '{}': LoopLocalZero -> ValueId({})",
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name, const_id.0
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);
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}
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const_id
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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/// Test FromHost returns host_id directly without emitting instructions
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#[test]
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fn test_from_host_returns_host_id() {
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let mut builder = MirBuilder::new();
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let host_id = ValueId(42);
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let result = init_value(&mut builder, &CarrierInit::FromHost, host_id, "test", false);
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assert_eq!(result, host_id, "FromHost should return host_id directly");
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// No instruction should be emitted for FromHost
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}
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/// Test BoolConst(true) emits new ValueId (not host_id)
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#[test]
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fn test_bool_const_true_emits_new_value() {
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let mut builder = MirBuilder::new();
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let host_id = ValueId(999); // Dummy host_id (not used for BoolConst)
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let result = init_value(&mut builder, &CarrierInit::BoolConst(true), host_id, "test", false);
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assert_ne!(result, host_id, "BoolConst should emit new ValueId");
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}
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/// Test BoolConst(false) emits new ValueId
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#[test]
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fn test_bool_const_false_emits_new_value() {
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let mut builder = MirBuilder::new();
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let host_id = ValueId(999);
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let result = init_value(&mut builder, &CarrierInit::BoolConst(false), host_id, "flag", false);
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assert_ne!(result, host_id, "BoolConst should emit new ValueId");
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}
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/// Test LoopLocalZero emits Integer(0) const
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#[test]
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fn test_loop_local_zero_emits_new_value() {
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let mut builder = MirBuilder::new();
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let host_id = ValueId(999);
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let result = init_value(&mut builder, &CarrierInit::LoopLocalZero, host_id, "digit", false);
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assert_ne!(result, host_id, "LoopLocalZero should emit new ValueId");
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}
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/// Test multiple calls produce different ValueIds
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#[test]
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fn test_multiple_calls_produce_unique_values() {
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let mut builder = MirBuilder::new();
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let host_id = ValueId(100);
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let result1 = init_value(&mut builder, &CarrierInit::BoolConst(true), host_id, "flag1", false);
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let result2 = init_value(&mut builder, &CarrierInit::BoolConst(false), host_id, "flag2", false);
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let result3 = init_value(&mut builder, &CarrierInit::LoopLocalZero, host_id, "counter", false);
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assert_ne!(result1, result2, "Different BoolConst calls should produce different ValueIds");
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assert_ne!(result2, result3, "BoolConst and LoopLocalZero should produce different ValueIds");
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assert_ne!(result1, result3, "All ValueIds should be unique");
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}
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/// Test debug output doesn't crash (no assertion, just execution)
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#[test]
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fn test_debug_output_from_host() {
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let mut builder = MirBuilder::new();
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let host_id = ValueId(42);
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let _ = init_value(&mut builder, &CarrierInit::FromHost, host_id, "debug_test", true);
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// Expected stderr output: "[carrier_init_builder] 'debug_test': FromHost -> ValueId(42)"
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// (This test just verifies it doesn't crash)
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}
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/// Test debug output for BoolConst doesn't crash
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#[test]
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fn test_debug_output_bool_const() {
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let mut builder = MirBuilder::new();
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let host_id = ValueId(999);
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let _result = init_value(&mut builder, &CarrierInit::BoolConst(true), host_id, "debug_bool", true);
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// Expected stderr output: "[carrier_init_builder] 'debug_bool': BoolConst(true) -> ValueId(N)"
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// (This test just verifies it doesn't crash)
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}
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/// Test debug output for LoopLocalZero doesn't crash
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#[test]
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fn test_debug_output_loop_local_zero() {
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let mut builder = MirBuilder::new();
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let host_id = ValueId(999);
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let _result = init_value(&mut builder, &CarrierInit::LoopLocalZero, host_id, "debug_zero", true);
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// Expected stderr output: "[carrier_init_builder] 'debug_zero': LoopLocalZero -> ValueId(N)"
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// (This test just verifies it doesn't crash)
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}
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}
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@ -114,40 +114,14 @@ impl LoopHeaderPhiBuilder {
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// Allocate PHIs for other carriers
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for (name, host_id, init, role) in carriers {
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// Phase 228-5: Generate explicit const for BoolConst, use host_id for FromHost
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let init_value = match init {
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crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost => *host_id,
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crate::mir::join_ir::lowering::carrier_info::CarrierInit::BoolConst(val) => {
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// Phase 228: Generate explicit bool constant for ConditionOnly carriers
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let const_id = builder.next_value_id();
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let _ = builder.emit_instruction(MirInstruction::Const {
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dst: const_id,
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value: crate::mir::types::ConstValue::Bool(*val),
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});
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if debug {
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eprintln!(
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"[cf_loop/joinir] Phase 228: Generated const {:?} = Bool({}) for ConditionOnly carrier '{}'",
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const_id, val, name
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);
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}
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const_id
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}
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crate::mir::join_ir::lowering::carrier_info::CarrierInit::LoopLocalZero => {
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// Loop-local derived carrier (e.g., digit_value) starts from 0 inside the loop
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let const_id = builder.next_value_id();
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let _ = builder.emit_instruction(MirInstruction::Const {
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dst: const_id,
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value: crate::mir::types::ConstValue::Integer(0),
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});
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if debug {
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eprintln!(
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"[cf_loop/joinir] Phase 247-EX: Generated const {:?} = Int(0) for loop-local carrier '{}'",
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const_id, name
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);
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}
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const_id
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}
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};
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// Phase 86: Use centralized CarrierInit builder
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let init_value = super::carrier_init_builder::init_value(
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builder,
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&init,
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*host_id,
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&name,
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debug,
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);
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let phi_dst = builder.next_value_id();
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@ -13,6 +13,7 @@
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//! Phase 4 Refactoring: Breaking down 714-line merge_joinir_mir_blocks() into focused modules
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mod block_allocator;
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mod carrier_init_builder;
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#[cfg(debug_assertions)]
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mod contract_checks;
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pub mod exit_line;
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@ -110,12 +110,13 @@ impl super::MirBuilder {
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// Phase 186: LoopBuilder Hard Freeze - Legacy path disabled
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// Phase 187-2: LoopBuilder module removed - all loops must use JoinIR
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return Err(format!(
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"[joinir/freeze] Loop lowering failed: JoinIR does not support this pattern, and LoopBuilder has been removed.\n\
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use crate::mir::join_ir::lowering::error_tags;
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return Err(error_tags::freeze(&format!(
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"Loop lowering failed: JoinIR does not support this pattern, and LoopBuilder has been removed.\n\
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Function: {}\n\
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Hint: This loop pattern is not supported. All loops must use JoinIR lowering.",
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self.current_function.as_ref().map(|f| f.signature.name.as_str()).unwrap_or("<unknown>")
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));
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)));
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}
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/// Phase 49: Try JoinIR Frontend for mainline integration
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