Brummel
41804a39fb
When a fn-param is annotated (own T) but the body never consumes it (consume_count == 0) and never destructures it via match, the linearity pass now emits a Severity::Warning diagnostic with a form-A-rendered (borrow T) rewrite as suggested_rewrite. Pure advisory, Decision 10 unchanged. First Warning-severity diagnostic the typechecker emits; three CLI exit paths gated on Error-only. JOURNAL: design entry + iter 19a shipping entry.
40 lines
1.7 KiB
Rust
40 lines
1.7 KiB
Rust
//! AILang authoring surface — form (A) S-expression projection.
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//!
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//! This crate is **one of potentially many** producers / consumers of
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//! [`ailang_core::ast::Module`] values. The JSON-AST in `ailang-core`
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//! remains the canonical, hashable, content-addressed source of truth;
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//! form (A) is the AI-authoring projection optimised for token-efficient
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//! production by LLMs (see `docs/DESIGN.md` Decision 6).
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//!
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//! ## Modules
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//!
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//! - [`mod@lex`] — hand-written lexer for the 3-rule lexical core
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//! (whitespace / parens / comments delimit tokens; first character
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//! classifies into integer / string / ident).
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//! - [`mod@parse`] — hand-written recursive-descent parser. One Rust
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//! function per EBNF production, line-by-line auditable. No
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//! parser-combinator dependency.
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//! - [`mod@print`] — deterministic pretty-printer that emits form (A).
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//! Round-trip with the parser is the contract that gates the
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//! surface (see the integration test `tests/round_trip.rs`).
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//!
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//! ## Round-trip contract
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//!
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//! For every well-formed [`ailang_core::ast::Module`] value `m`,
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//! [`parse()`] applied to [`print()`]`(m)` produces a module whose
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//! canonical JSON bytes equal those of `m`. This is enforced by the
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//! integration test against every `examples/*.ail.json` fixture.
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//!
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//! ## Architectural pin
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//!
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//! No new AST nodes, no schema changes, no new hashable form.
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//! `ailang-check` and `ailang-codegen` are projection-agnostic — they
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//! consume `Module` values regardless of which front-end produced them.
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pub mod lex;
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pub mod parse;
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pub mod print;
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pub use parse::{parse, parse_term, ParseError};
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pub use print::{print, term_to_form_a, type_to_form_a};
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