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prometeu-studio/docs/other specs/random/pbs/README.md

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PBS Specifications (Current)

This directory contains the current PBS specifications for frontend and language work.

Authority model

  • Runtime authority: docs/specs/hardware/topics/chapter-2.md, chapter-3.md, chapter-9.md, chapter-12.md, chapter-16.md.
  • Bytecode authority: docs/specs/bytecode/ISA_CORE.md.
  • Legacy reference only: docs/specs/pbs_old/*.

When a rule conflicts with runtime or bytecode authority, runtime and bytecode authority win.

Purpose

  • Define a stable syntax contract for PBS.
  • Support a full frontend rewrite (lexer, parser, AST, lowering).
  • Keep grammar deterministic and implementation-friendly.

Files

  • PBS - Language Syntax Specification v0.md: normative syntax and grammar for PBS v0 Core profile, including mandatory mod.barrel visibility rules.
  • PBS - Game Language Profile v1 (Draft).md: game-first language direction for 2D workloads, defining ten normative design rules aligned with the closed VM and GC-first baseline.
  • PBS - Game Profile Syntax Specification v1 (Draft).md: parser/lowering syntax delta for Game Profile over v0 Core (host fn declarations, assignment, while/break/continue, member/index postfix access).
  • PBS - Compatibility and Evolution Policy v1 (Draft).md: compatibility contract for PBS across logical hardware updates (frozen core rules, canonical versioning, target manifests, major/minor policy, replay/conformance guarantees).