2026-03-24 13:42:32 +00:00

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# PBS Frontend PR Sequence
Este indice organiza uma sequencia de PRs atomicas para levar `frontends/pbs` ao contrato das specs.
1. `PR-001-pbs-lexer-core-syntax-alignment.md`
2. `PR-002-pbs-ast-contract-v1.md`
3. `PR-003-pbs-parser-declarations-and-types.md`
4. `PR-004-pbs-parser-statements-and-control-flow.md`
5. `PR-005-pbs-parser-expressions-optional-result-apply.md`
6. `PR-006-pbs-barrel-and-module-visibility.md`
7. `PR-006.2-pbs-parser-ast-syntax-hardening.md`
8. `PR-006.3-pbs-syntax-completeness-and-module-hygiene.md`
9. `PR-007-pbs-static-semantics-declaration-validation.md`
10. `PR-008-pbs-static-semantics-call-resolution-and-flow.md`
11. `PR-009-pbs-diagnostics-contract-v1.md`
12. `PR-010-pbs-irbackend-lowering-contract.md`
13. `PR-011-pbs-gate-u-conformance-fixtures.md`
Cada documento e auto contido e inclui: `Briefing`, `Target`, `Method`, `Acceptance Criteria` e `Tests`.
## Non-Conformance Remediation PRs
14. `PR-012-pbs-byte-offset-spans.md`
15. `PR-013-pbs-import-unresolved-diagnostics.md`
16. `PR-014-pbs-switch-wildcard-rules.md`
17. `PR-015-pbs-this-self-context-validation.md`
18. `PR-016-pbs-assignment-target-and-field-access-semantics.md`
19. `PR-017-pbs-const-evaluation-and-dependency-rules.md`
20. `PR-018-pbs-result-flow-ok-err-handle-rules.md`
21. `PR-019-pbs-non-unit-fallthrough-diagnostics.md`
22. `PR-020-pbs-lowering-admission-gates.md`
23. `PR-021-pbs-handle-aware-fallthrough-completion.md`
24. `PR-022-pbs-source-kind-and-module-origin-pipeline.md`
25. `PR-023-pbs-stdlib-environment-resolver-and-loader.md`
26. `PR-024-pbs-parser-ast-interface-module-mode.md`
27. `PR-025-pbs-interface-module-semantics-and-linking.md`
28. `PR-026-pbs-sdk-minimal-core-color-and-gfx.md`
29. `PR-027-pbs-builtin-metadata-extraction-and-ir-lowering-admission.md`
30. `PR-028-pbs-gate-u-sdk-interface-module-fixtures.md`
31. `PR-029-pbs-builtin-slot-inference-and-layout-semantics.md`
32. `PR-030-pbs-host-admission-capability-gating.md`
33. `PR-031-pbs-dependency-scoped-fail-fast-admission.md`
## Backend VM Pipeline PR Sequence (Agenda 18)
Esta sequencia organiza implementacao atomica para `IRBackend -> IRVM -> OptimizeIRVM -> EmitBytecode`, com trilha de montagem do output para o input (bytecode ate IRBackend).
34. `PR-032-backend-bytecode-module-serializer-baseline.md`
35. `PR-033-backend-bytecode-function-layout-and-debug-minimum.md`
36. `PR-034-backend-emitter-hostcall-sysc-contract.md`
37. `PR-035-backend-emit-stage-pipeline-wiring.md`
38. `PR-036-backend-irvm-core-model-and-validator.md`
39. `PR-037-backend-optimize-irvm-noop-stage-and-guards.md`
40. `PR-038-irbackend-v2-executable-contract-model.md`
41. `PR-039-pbs-frontend-irbackend-v2-lowering.md`
42. `PR-040-backend-lower-to-irvm-stage-implementation.md`
43. `PR-041-backend-gate-i-runtime-compat-integration-fixtures.md`
## JVM-Grade Remediation Waves (Execution Plan)
Esta trilha organiza as PRs por ondas para execucao incremental com rollback simples por item.
### Onda O1 - Conformance and Correctness Hardening
1. `PR-O1.1-backend-diagnostics-taxonomy-and-attribution.md`
2. `PR-O1.2-irbackend-executable-contract-hardening.md`
3. `PR-O1.3-pbs-executable-lowering-fidelity.md`
4. `PR-O1.4-lower-to-irvm-callsite-prechecks.md`
5. `PR-O1.5-bytecode-debug-minimum-completeness.md`
6. `PR-O1.6-gate-su-safety-matrix-completion.md`
### Onda O2 - JVM-Inspired Verification and Linking Boundaries
1. `PR-O2.1-bytecode-link-precheck-stage.md`
2. `PR-O2.2-bytecode-preload-verifier.md`
3. `PR-O2.3-optimize-irvm-pass-manager-and-equivalence.md`
4. `PR-O2.4-gate-i-runtime-backed-compat-harness.md`
### Onda O3 - Evolution and Scale
1. `PR-O3.1-irvm-control-flow-lowering-label-resolution.md`
2. `PR-O3.2-bytecode-constpool-symbol-interning-determinism.md`
3. `PR-O3.3-irvm-profile-evolution-and-feature-gates.md`
### Onda O4 - JVM-Grade Uplift
1. `PR-O4.1-callable-signature-identity-and-dense-symbol-table.md`
2. `PR-O4.2-global-intrinsic-table-and-reindexing.md`
3. `PR-O4.3-semantic-lowering-cfg-and-stack-analysis.md`
4. `PR-O4.4-irvm-program-single-source-of-truth.md`
5. `PR-O4.5-vm-profile-end-to-end-pipeline.md`
6. `PR-O4.6-strict-bytecode-precheck-unknown-opcode-rejection.md`
7. `PR-O4.7-gate-i-runtime-backed-execution-adapter.md`
8. `PR-O4.8-jvm-grade-regression-matrix-and-golden-artifacts.md`
### Onda O5.0 - Dense Table Identity Foundation (Pre-O5)
1. `PR-05.0.1-frontend-phase-shared-name-table-context.md`
2. `PR-05.0.2-module-identity-dense-table-and-moduleid-wiring.md`
3. `PR-05.0.3-irbackend-typed-callable-and-intrinsic-ids.md`
4. `PR-05.0.4-callable-shape-and-signature-interning.md`
5. `PR-05.0.5-synthetic-stdlib-fileid-via-filetable.md`
6. `PR-05.0.6-host-binding-key-interning-and-capability-identity.md`
### Onda O5 - JVM-Grade Score Evolution (5.6 -> 8.5+)
Prerequisito de execucao: concluir a Onda O5.0.
1. `PR-05.1-pbs-frontend-semantic-executable-lowering-cfg.md`
2. `PR-05.2-irbackend-callsite-classification-by-semantic-identity.md`
3. `PR-05.3-irvm-deterministic-function-id-and-entrypoint-policy.md`
4. `PR-05.4-irvm-program-coherence-without-bypass.md`
5. `PR-05.5-irvm-validator-real-stack-effects-hostcall-intrinsic.md`
6. `PR-05.6-optimize-irvm-real-deterministic-passes.md`
7. `PR-05.7-gate-i-runtime-backed-mandatory-in-ci.md`
8. `PR-05.8-backend-spec-to-test-conformance-matrix.md`
### Onda O6 - JVM-Grade Score Evolution (8.0 -> 9.0+)
Foco: fechar `partial/deferred` relevantes da matriz normativa e endurecer evidencia de conformidade.
1. `PR-06.1-source-attribution-and-diagnostics-evidence-hardening.md`
2. `PR-06.2-optimize-irvm-semantic-equivalence-harness.md`
3. `PR-06.3-irvm-ext-contract-and-elimination-fixtures.md`
4. `PR-06.4-gate-i-runtime-line-repeatability-ci.md`
5. `PR-06.5-conformance-matrix-hard-gate-policy.md`
6. `PR-06.6-spawn-yield-v1-or-claim-rescope.md`
### Onda O7 - Partial Closure Before IDE Focus
Foco: eliminar os dois `partial` remanescentes na matriz backend antes de mover foco principal para IDE.
1. `PR-07.1-optimize-irvm-span-source-hook-preservation.md`
2. `PR-07.2-pbs-callsite-category-no-textual-heuristics-regression.md`
3. `PR-07.3-irvm-entrypoint-export-emission-for-runtime-loader.md`
### Onda O8 - Canonical Identity and Dense Addressing Hardening
Foco: fechar lacunas estruturais em identidade canonica de intrinsic/modulo/entrypoint e remover riscos de ambiguidade no handoff FE->BE.
1. `PR-08.1-intrinsic-resolution-canonical-identity-keying.md`
2. `PR-08.2-irbackend-moduleid-contract-and-modulepool.md`
3. `PR-08.3-qualified-entrypoint-identity-contract.md`
4. `PR-08.4-call-func-callee-module-identity-correctness.md`
5. `PR-08.5-intrinsic-registry-single-source-sync-with-runtime.md`