oxc-project/oxc

Source text enters through filesystem reads or explicit binding arguments and becomes arena-owned compiler data. Configuration resolution selects rule state or a typed formatting strategy before processing. Node parser output crosses an additional coordinate and serialization boundary. Filesystem outputs and suppression baselines are distinct from temporary allocator, module-graph, and directive state.

• Parser binding input consists of filename, source text, and ParserOptions; parse_with_return creates an allocator, derives SourceType and AST flavor, then calls parse_impl.
  napi/parser/src/lib.rs#L79-108napi/parser/src/lib.rs#L160-166
• Node parser results optionally accumulate semantic diagnostics, convert AST/module/error offsets from UTF-8 to UTF-16, serialize ESTree fields, and return comments plus module metadata.
  napi/parser/src/lib.rs#L110-147
• Oxlint normalizes explicit paths, filters ignore sources, walks candidates, loads root/nested configuration, and combines resolved rule state and external-plugin metadata into ConfigStore.
  apps/oxlint/src/lint.rs#L123-198apps/oxlint/src/lint.rs#L220-238apps/oxlint/src/lint.rs#L254-266apps/oxlint/src/lint.rs#L369-413
• Lint Runtime stores source and section semantics under an AllocatorGuard-backed self_cell; a concurrent module graph retains Arc-owned records, with other cyclic references required to use Weak.
  crates/oxc_linter/src/service/runtime.rs#L45-68crates/oxc_linter/src/service/runtime.rs#L79-119
• PartialLoader separates framework source sections; each section is parsed and semantically analyzed, and failed-section diagnostic spans are shifted back to original file coordinates.
  crates/oxc_linter/src/service/runtime.rs#L1078-1124crates/oxc_linter/src/service/runtime.rs#L1137-1164
• Oxfmt streams FormatStrategy entries over an mpsc channel; FormatService bridges them into Rayon processing, reads source, formats it, and sends success or wrapped diagnostics over separate channels.
  apps/oxfmt/src/cli/walk_runner.rs#L124-150apps/oxfmt/src/cli/service.rs#L36-78apps/oxfmt/src/cli/service.rs#L100-117
• JS formatting acquires a pooled allocator and a FormatSession carrying resolved host services, calls format_with_session, and prints its result; embedded children inherit the host's resolved config rather than resolving a virtual path.
  apps/oxfmt/src/core/format.rs#L410-450apps/oxfmt/src/core/embed/dispatcher.rs#L108-127
• Suppression state maps filenames to rule diagnostic counts; serialization sorts filenames and rules, while finalization compares runtime counts with the baseline before saving updates or reporting differences.
  crates/oxc_linter/src/suppression/tracking.rs#L32-58crates/oxc_linter/src/suppression/tracking.rs#L113-122crates/oxc_linter/src/suppression/mod.rs#L142-179