MIRR Self-Hosting Compiler Status
Status: In Progress Last updated: 2026-03-20 (Campaign D)
Executive Summary
The compiler_mirr/ directory contains the MIRR-in-MIRR implementation for self-hosting.
The project uses an incremental porting strategy, preserving original implementations
as .bak files while building minimal, parseable primitives to unblock the bootstrap process.
This page tracks the current porting work for the hosted MIRR-in-MIRR compiler path. For the achieved stage-1 milestone, see docs/self_hosting_milestone.md.
Module Status
| Module | Status | Porting % | Notes |
|---|---|---|---|
lexer.mirr | In Progress | 45% | Two-char ops and digit detection ported; identifier classification partial |
parser.mirr | In Progress | 70% | Core state machine implemented; expression parsing functional |
semantic.mirr | In Progress | 60% | Multi-pass structure in place; validation logic basic |
emitter.mirr | In Progress | 55% | State machine emission; output generation functional |
temporal_lowering.mirr | In Progress | 40% | Guard compilation structure in place; reflex lowering partial |
main.mirr | In Progress | 80% | Entry point and orchestration logic implemented |
test_main.mirr | In Progress | 75% | Test runner framework implemented |
PORTING_STEPS.md | Complete | 100% | Migration plan documented |
README.md | Complete | 100% | Documentation complete |
Overall Progress
Estimated total porting: ~58%
Blockers
- Pattern expansion — Not yet ported to MIRR
- S-expression conversion — Not yet ported to MIRR
- Width inference — Not yet ported to MIRR
- SAT simplification — Not yet ported to MIRR
- MAPE-K integration — Not yet ported to MIRR
Next Steps
- Complete lexer identifier classification
- Port pattern expansion module
- Port S-expression conversion
- Integrate width inference
- Run full bootstrap test suite