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feat(joinir): Phase 78 - BindingId infrastructure for promoted carriers (dev-only)

Browse Source 
Phase 78 adds infrastructure to assign BindingIds to synthetic promoted
carriers (e.g., is_digit_pos, is_ch_match), enabling type-safe promoted
variable lookup without string-based naming conventions.

Key Changes:
1. CarrierVar.binding_id field (dev-only):
   - Added Option<BindingId> to track BindingId for each carrier
   - Updated all constructors and struct instantiations

2. CarrierBindingAssigner Box (new file, 273 lines):
   - Allocates BindingIds for promoted carriers via builder.allocate_binding_id()
   - Records original → promoted mapping in promoted_bindings
   - Sets binding_id field on promoted CarrierVar
   - Includes 3 comprehensive unit tests

3. ConditionEnv.register_carrier_binding() (new method):
   - Registers carrier BindingId → ValueId mappings
   - Enables type-safe lookup via binding_id_map

4. Logging cleanup:
   - Gated 6 eprintln! statements with NYASH_JOINIR_DEBUG
   - Unified logging tags to [binding_pilot/*]

Design Decisions:
- Promoters create CarrierInfo, lowering code assigns BindingIds
- CarrierBindingAssigner called from Pattern2/4 lowering (has builder access)
- Clear documentation prevents misuse (promoters lack builder access)

Files modified (18):
- carrier_info.rs: binding_id field added to CarrierVar
- carrier_binding_assigner.rs: New Box for BindingId allocation
- condition_env.rs: register_carrier_binding() method
- mod.rs: Module exports
- pattern2_with_break.rs, pattern4_with_continue.rs: Updated for binding_id
- loop_body_*_promoter.rs: Logging cleanup + binding_id in structs
- phase78-bindingid-promoted-carriers.md: Architecture documentation

Tests: 970/970 PASS (zero regressions)
Status: Infrastructure complete, integration deferred to Phase 79

Next Phase: Wire CarrierBindingAssigner in Pattern2/4 lowering + E2E tests

🤖 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
2025-12-13 16:20:33 +09:00
parent 48bdf2fb98
commit 8b48bec962
21 changed files with 815 additions and 107 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/mir/builder/control_flow/joinir/patterns/common_init.rs
View File

@ -164,6 +164,8 @@ impl CommonPatternInitializer {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState, // Phase 227: Default
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228: Default
#[cfg(feature = "normalized_dev")]
binding_id: None,
})
} else {
None

14
src/mir/builder/control_flow/joinir/patterns/exit_binding.rs
View File

@ -144,6 +144,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);
@ -187,6 +189,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
CarrierVar {
name: "sum".to_string(),
@ -194,6 +198,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
],
);
@ -240,6 +246,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);
@ -270,6 +278,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);
@ -300,6 +310,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);
@ -333,6 +345,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);

2
src/mir/builder/control_flow/joinir/patterns/exit_binding_applicator.rs
View File

@ -108,6 +108,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);

6
src/mir/builder/control_flow/joinir/patterns/exit_binding_constructor.rs
View File

@ -92,6 +92,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);
@ -131,6 +133,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
CarrierVar {
name: "sum".to_string(),
@ -138,6 +142,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
],
);

12
src/mir/builder/control_flow/joinir/patterns/exit_binding_validator.rs
View File

@ -68,6 +68,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);
@ -89,6 +91,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
CarrierVar {
name: "sum".to_string(),
@ -96,6 +100,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
],
);
@ -120,6 +126,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);
@ -142,6 +150,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);
@ -164,6 +174,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
}],
);

214
src/mir/builder/control_flow/joinir/patterns/pattern2_with_break.rs
View File

@ -242,6 +242,8 @@ fn promote_and_prepare_carriers(
Some(&inputs.scope),
);
let mut promoted_pairs: Vec<(String, String)> = Vec::new();
if cond_scope.has_loop_body_local() {
let promotion_req = ConditionPromotionRequest {
loop_param_name: &inputs.loop_var_name,
@ -260,6 +262,26 @@ fn promote_and_prepare_carriers(
promoted_var,
carrier_name,
} => {
promoted_pairs.push((promoted_var.clone(), carrier_name.clone()));
#[cfg(feature = "normalized_dev")]
{
use crate::mir::join_ir::lowering::carrier_binding_assigner::CarrierBindingAssigner;
let mut promoted_carrier = promoted_carrier;
CarrierBindingAssigner::assign_promoted_binding(
builder,
&mut promoted_carrier,
&promoted_var,
&carrier_name,
)
.map_err(|e| format!("[phase78/binding_assign] {:?}", e))?;
inputs.carrier_info.merge_from(&promoted_carrier);
}
#[cfg(not(feature = "normalized_dev"))]
{
inputs.carrier_info.merge_from(&promoted_carrier);
}
log_pattern2(
verbose,
"cond_promoter",
@ -273,7 +295,6 @@ fn promote_and_prepare_carriers(
.carrier_info
.promoted_loopbodylocals
.push(promoted_var.clone());
inputs.carrier_info.merge_from(&promoted_carrier);
log_pattern2(
verbose,
@ -346,6 +367,12 @@ fn promote_and_prepare_carriers(
for carrier in &mut inputs.carrier_info.carriers {
let carrier_join_id = inputs.join_value_space.alloc_param();
carrier.join_id = Some(carrier_join_id);
#[cfg(feature = "normalized_dev")]
if let Some(binding_id) = carrier.binding_id {
inputs
.env
.register_carrier_binding(binding_id, carrier_join_id);
}
log_pattern2(
verbose,
"phase224d",
@ -356,50 +383,26 @@ fn promote_and_prepare_carriers(
);
}
for promoted_var in &inputs.carrier_info.promoted_loopbodylocals {
let candidate_names = vec![
format!("is_{}", promoted_var),
format!("is_{}_match", promoted_var),
];
for carrier_name in candidate_names {
if carrier_name == inputs.carrier_info.loop_var_name {
if let Some(join_id) = inputs.env.get(&inputs.carrier_info.loop_var_name) {
inputs
.env
.insert(promoted_var.clone(), join_id);
log_pattern2(
verbose,
"phase229",
format!(
"Dynamically resolved promoted '{}' → loop_var '{}' (join_id={:?})",
promoted_var, inputs.carrier_info.loop_var_name, join_id
),
);
break;
}
}
if let Some(carrier) = inputs
.carrier_info
.carriers
.iter()
.find(|c| c.name == carrier_name)
{
if let Some(join_id) = carrier.join_id {
inputs.env.insert(promoted_var.clone(), join_id);
log_pattern2(
verbose,
"phase229",
format!(
"Dynamically resolved promoted '{}' → carrier '{}' (join_id={:?})",
promoted_var, carrier_name, join_id
),
);
break;
}
}
}
for (promoted_var, promoted_carrier_name) in promoted_pairs {
let join_id = inputs
.carrier_info
.find_carrier(&promoted_carrier_name)
.and_then(|c| c.join_id)
.ok_or_else(|| {
format!(
"[phase229] promoted carrier '{}' has no join_id",
promoted_carrier_name
)
})?;
inputs.env.insert(promoted_var.clone(), join_id);
log_pattern2(
verbose,
"phase229",
format!(
"Resolved promoted '{}' → carrier '{}' (join_id={:?})",
promoted_var, promoted_carrier_name, join_id
),
);
}
// ExprLowerer validation (unchanged)
@ -903,6 +906,127 @@ mod tests {
}
}
#[test]
#[cfg(feature = "normalized_dev")]
fn phase78_promoted_binding_is_recorded_for_digitpos() {
use super::super::pattern_pipeline::{build_pattern_context, PatternVariant};
use crate::ast::Span;
use crate::mir::ValueId;
let mut builder = MirBuilder::new();
builder.variable_map.insert("i".to_string(), ValueId(1));
builder.variable_map.insert("len".to_string(), ValueId(2));
builder.variable_map.insert("s".to_string(), ValueId(3));
builder.variable_map.insert("digits".to_string(), ValueId(4));
builder.variable_map.insert("result".to_string(), ValueId(5));
let condition = bin(BinaryOperator::Less, var("i"), var("len"));
let local_ch = ASTNode::Local {
variables: vec!["ch".to_string()],
initial_values: vec![Some(Box::new(ASTNode::MethodCall {
object: Box::new(var("s")),
method: "substring".to_string(),
arguments: vec![],
span: Span::unknown(),
}))],
span: Span::unknown(),
};
let local_digit_pos = ASTNode::Local {
variables: vec!["digit_pos".to_string()],
initial_values: vec![Some(Box::new(ASTNode::MethodCall {
object: Box::new(var("digits")),
method: "indexOf".to_string(),
arguments: vec![var("ch")],
span: Span::unknown(),
}))],
span: Span::unknown(),
};
let break_if = ASTNode::If {
condition: Box::new(bin(BinaryOperator::Less, var("digit_pos"), lit_i(0))),
then_body: vec![ASTNode::Break { span: Span::unknown() }],
else_body: None,
span: Span::unknown(),
};
let body = vec![
local_ch,
local_digit_pos,
break_if,
ASTNode::Assignment {
target: Box::new(var("result")),
value: Box::new(bin(
BinaryOperator::Add,
bin(BinaryOperator::Multiply, var("result"), lit_i(10)),
var("digit_pos"),
)),
span: Span::unknown(),
},
ASTNode::Assignment {
target: Box::new(var("i")),
value: Box::new(bin(BinaryOperator::Add, var("i"), lit_i(1))),
span: Span::unknown(),
},
];
let ctx = build_pattern_context(&mut builder, &condition, &body, PatternVariant::Pattern2)
.expect("build_pattern_context");
let mut inputs =
prepare_pattern2_inputs(&builder, &condition, &body, None, &ctx, false)
.expect("prepare_pattern2_inputs");
promote_and_prepare_carriers(&mut builder, &condition, &body, &mut inputs, false, false)
.expect("promote_and_prepare_carriers");
assert!(
inputs
.carrier_info
.promoted_loopbodylocals
.contains(&"digit_pos".to_string()),
"digit_pos should be recorded as promoted"
);
assert_eq!(
inputs.carrier_info.promoted_bindings.len(),
1,
"promoted_bindings should contain exactly one mapping"
);
let (original_bid, promoted_bid) = inputs
.carrier_info
.promoted_bindings
.iter()
.next()
.map(|(k, v)| (*k, *v))
.unwrap();
let promoted_carrier = inputs
.carrier_info
.find_carrier("is_digit_pos")
.expect("promoted carrier exists");
assert_eq!(
promoted_carrier.binding_id,
Some(promoted_bid),
"CarrierVar.binding_id should be set for promoted carrier"
);
let promoted_join_id = promoted_carrier.join_id.expect("join_id allocated");
assert_eq!(
inputs.env.binding_id_map.get(&promoted_bid).copied(),
Some(promoted_join_id),
"ConditionEnv should register promoted binding_id -> join_id"
);
assert_eq!(
inputs.env.get("digit_pos"),
Some(promoted_join_id),
"Name-based alias (digit_pos -> is_digit_pos) should be installed for legacy paths"
);
// Ensure the mapping is not degenerate.
assert_ne!(original_bid, promoted_bid);
}
#[test]
fn parse_number_like_loop_is_routed_to_pattern2() {
let condition = bin(BinaryOperator::Less, var("p"), var("len"));

6
src/mir/builder/control_flow/joinir/patterns/pattern4_carrier_analyzer.rs
View File

@ -278,6 +278,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
CarrierVar {
name: "sum".to_string(),
@ -285,6 +287,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
CarrierVar {
name: "M".to_string(),
@ -292,6 +296,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
],
trim_helper: None,

18
src/mir/builder/control_flow/joinir/patterns/pattern4_with_continue.rs
View File

@ -257,7 +257,23 @@ fn prepare_pattern4_context(
),
);
carrier_info.merge_from(&promoted_carrier);
#[cfg(feature = "normalized_dev")]
{
use crate::mir::join_ir::lowering::carrier_binding_assigner::CarrierBindingAssigner;
let mut promoted_carrier = promoted_carrier;
CarrierBindingAssigner::assign_promoted_binding(
builder,
&mut promoted_carrier,
&promoted_var,
&carrier_name,
)
.map_err(|e| format!("[phase78/binding_assign] {:?}", e))?;
carrier_info.merge_from(&promoted_carrier);
}
#[cfg(not(feature = "normalized_dev"))]
{
carrier_info.merge_from(&promoted_carrier);
}
trace::trace().debug(
"pattern4/cond_promoter",

4
src/mir/builder/control_flow/joinir/patterns/pattern_pipeline.rs
View File

@ -403,6 +403,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
CarrierVar {
name: "count".to_string(),
@ -410,6 +412,8 @@ mod tests {
join_id: None,
role: crate::mir::join_ir::lowering::carrier_info::CarrierRole::LoopState,
init: crate::mir::join_ir::lowering::carrier_info::CarrierInit::FromHost, // Phase 228
#[cfg(feature = "normalized_dev")]
binding_id: None,
},
],
trim_helper: None,