Drop all files to <2k LOC + tighten size gate from 5k to 2k#1246
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… 5k-LOC PR gate
Splits 9 top-of-list >5k-LOC source files into topical sub-modules
(8 fully under 2k LOC, 1 down ~13% but still over) and adds a CI gate
on the `lint` job that fails any PR introducing a >5,000-line tracked
source file. Threshold starts at 5k; the eventual target is 2k and
tightens one file at a time.
## Splits (max single-file LOC per resulting directory)
| Original | LOC | After split (max) |
|---------------------------------------------------|-------:|-----------------------------:|
| crates/perry-codegen/src/expr/mod.rs | 13,729 | 1,352 (mod.rs) |
| crates/perry/src/commands/compile.rs | 8,679 | 4,725 * |
| crates/perry-runtime/src/object/mod.rs | 7,790 | 1,948 (field_get_set.rs) |
| crates/perry-codegen/src/codegen.rs | 7,029 | 1,946 (codegen/mod.rs) |
| crates/perry-hir/src/lower/expr_call/mod.rs | 6,917 | 1,276 (module_static.rs) |
| crates/perry-codegen/src/collectors.rs | 6,428 | 1,401 (escape_news.rs) |
| crates/perry-transform/src/inline.rs | 5,818 | 1,773 (call_inliner.rs) |
| crates/perry-codegen/src/lower_call/native_table | 5,875 | 720 (databases.rs) |
| crates/perry-hir/src/lower_decl.rs | 5,557 | 1,724 (body_stmt.rs) |
`*` compile.rs reduced from 8,679 → 5,395 (prior PR) → 4,725 here;
deeper splitting requires extracting the par_iter codegen closure
(~1,800 LOC, ~30 captured locals) into a context-struct helper, which
is mechanical but high-risk surgery — deferred to a follow-up.
`crates/perry-runtime/src/gc.rs` (13,778 LOC) is allowlisted in the
gate — owner-tracked refactor in flight, re-evaluate when that lands.
## Approach
For each file: extract topical function groups into sibling .rs files
under a new directory (`foo.rs` → `foo/mod.rs` + `foo/{group_a,...}.rs`).
mod.rs is a re-export hub with **explicit named re-exports** —
`pub(crate) use foo::*;` does NOT transitively expose names through
an outer `pub(crate) use crate::module::*;` glob, so external callers
would silently lose visibility (this was the root cause of the broken
sibling agents' work earlier; fixed by enumerating every `pub fn` by
name in mod.rs). Sibling files use `use super::*;` to access each
other's items via mod.rs's named re-exports.
Cross-sibling shared types/constants (e.g. `MAX_SCALAR_ARRAY_LEN`,
`ExactReceiverFact`, `NativeArgKind`) are `pub(crate)` or `pub(super)`
in their defining sibling and re-exported through mod.rs.
The native_table dispatch table (5,875 LOC of `pub(super) const
NATIVE_MODULE_TABLE: &[NativeModSig] = &[ ... ]`) was switched to
`pub(super) static NATIVE_MODULE_TABLE: LazyLock<Vec<NativeModSig>>`
that concatenates per-family `*_ROWS` slices from 13 sub-modules in
declaration order. All consumers used `.iter()` only, so the
const→static change is source-compatible and `iter_native_module_table`
still yields the same `&'static NativeModSig` projections in the same
order (preserves the `perry-api-manifest` drift contract).
## CI gate
New `scripts/check_file_size.sh` runs on every PR as part of the
existing `lint` job. Excludes generated artifacts (Cargo.lock, .po
translations, generated API docs, binary fixtures, CHANGELOG.md) and
honors a one-line allowlist (`gc.rs` for now). On violation, prints
the offending files + an inline pointer to this commit's recipe.
Threshold is configurable via `PERRY_FILE_SIZE_THRESHOLD` env var;
default 5000. The eventual target is 2000 — to tighten, ship one or
two file splits per PR + drop the threshold in the same commit.
## Validation
- `cargo check --workspace` (excl. macOS/iOS/gtk4/jsruntime UI crates):
clean, 0 errors.
- `cargo fmt --all -- --check`: clean.
- `cargo test --workspace` (same exclusions): all 100+ test results
green, 0 failures.
- `./scripts/check_file_size.sh` locally: passes.
No behavior changes — purely structural code movement (with the one
exception of NATIVE_MODULE_TABLE's const→static documented above,
which is source-compatible).
# Conflicts: # crates/perry-codegen/src/codegen.rs # crates/perry-codegen/src/expr/mod.rs # crates/perry-runtime/src/object/field_get_set.rs
Files split (max single-file LOC after split): - perry-codegen-wasm/src/emit/expr.rs (4688) → 15 siblings, max 941 - perry-codegen/src/lower_call/mod.rs (4303) → 10 siblings, max 1578 - perry-runtime/src/json.rs (4207) → 8 siblings, max 1157 - perry-hir/src/stable_hash.rs (4110) → 10 siblings, max 528 - perry-runtime/src/builtins.rs (4101) → 6 siblings, max 1316 - perry-runtime/src/array.rs (3929) → 17 siblings, max 553 - perry-hir/src/monomorph.rs (3883) → 13 siblings, max 904 - perry/src/commands/publish.rs (3805) → 9 siblings, max 1795 - perry-runtime/src/arena.rs (3727) → 9 siblings, max 909 - perry-codegen-js/src/emit.rs (3657) → 8 siblings, max 1159 All FFI #[no_mangle] symbol counts preserved. Workspace cargo check clean. Each agent worked in isolation; merged + de-duplicated leftover originals.
Files split (max single-file LOC after split): - perry-transform/src/generator.rs (3508) → 8 siblings, max 922 - perry-hir/src/js_transform.rs (3480) → 4 siblings, max 1267 - perry-jsruntime/src/modules.rs (3475) → 4 siblings, max 1413 - perry/src/commands/run.rs (3333) → 8 siblings, max 827 - perry-runtime/src/promise.rs (3315) → 6 siblings, max 888 - perry-runtime/src/string.rs (3132) → 14 siblings, max 610 - perry-hir/src/ir.rs (3039) → 8 siblings, max 1938 - perry-codegen/src/runtime_decls.rs (2977) → 5 siblings, max 1474 - perry-runtime/src/value.rs (2871) → 13 siblings, max 453 FFI #[no_mangle] counts preserved (promise 37→37, string 61→61, value 55→55). Workspace cargo check clean. setup.rs deferred — agent attempt corrupted, retrying. Two agents (promise + string) lost their output to a parallel-worktree race; re-dispatched the second time around with stronger 'git add -A immediately' instructions.
perry-ui-macos/ios/android/visionos/tvos/windows lib.rs (~2.6-3k each) split topically by widget area into src/ffi/* or src/lib_ffi/* directories. Every #[no_mangle] perry_ui_* symbol preserved (verified by name-set diff). Plus: perry-runtime/closure.rs (2842) → 7 siblings; perry-hir/walker.rs (2839) → 3 siblings; perry-dispatch/lib.rs (2731) → 8 topical tables; perry-hir/lower/mod.rs (2713) → 7 new siblings (mod.rs down to 102 LOC). Workspace cargo check clean. perry-ui-* host-incompatible crates verified by file structure only — actual cross-compile will run in CI matrix steps.
buffer.rs/url.rs/closure (FFI preserved); destructuring/native.rs/interop/stmt/bridge/deforest topical; compile/{link,cjs_wrap}.rs trimmed; field_get_set extracts polymorphic_index; perry-ui-gtk4/lib.rs into ffi/. perry-codegen-wasm/emit/mod.rs into compile.rs + 5 siblings.
…d to 2k Final wave: - crates/perry/src/commands/setup.rs (3145) split into 10 per-platform wizards (windows/android/ios/macos/visionos/watchos/tvos/harmonyos) plus common_apple (JWT + API creds shared by ios+macos) and helpers (file-path + perry.toml updaters shared across wizards). - crates/perry-dispatch/tests/dispatch_drift.rs: recurse the new emit/ directory layouts in both perry-codegen-js and perry-codegen-wasm so the drift test still sees every dispatch wiring. - perry-runtime/promise: LAST_ASYNC_STEP_THUNKS bumped to pub(super) + imported explicitly from scanners.rs so the cross-sibling thread-local resolves cleanly. - perry-runtime/array/tests.rs: added missing 'use std::ptr;'. - perry-hir/monomorph/mangle.rs: bumped mangle_type to pub(crate) + added to the mod.rs explicit named re-exports list so its tests can resolve it. scripts/check_file_size.sh: - threshold dropped from 5000 to 2000 (the original target) - scope narrowed to *.rs only (JS runtime templates, HTML examples, Kotlin templates, JSON fixtures, dist bundles intentionally not policed) - allowlist extended with three deferred files, each with a one-line rationale: gc/tests.rs, perry-codegen-arkts/src/tests.rs, perry-api-manifest/src/entries.rs, perry/src/commands/compile.rs (par_iter codegen closure inside run_with_parse_cache — ~1.8k LOC with ~30 captured locals; high-risk extraction deferred to a follow-up PR). Validation: - cargo fmt --all -- --check: clean - cargo check --workspace (excl. macOS/iOS/gtk4/jsruntime UI crates): clean - cargo test --workspace (same exclusions): 0 failures - ./scripts/check_file_size.sh: OK at 2000 lines
# Conflicts: # crates/perry-codegen/src/lower_call/native_table/node_misc.rs # crates/perry-codegen/src/runtime_decls.rs # crates/perry-runtime/src/object/field_get_set.rs # crates/perry-runtime/src/object/mod.rs # scripts/check_file_size.sh
# Conflicts: # crates/perry-runtime/src/json.rs
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PR #1246 ("Drop all files to <2k LOC") moved every platform's `pub extern "C" fn perry_ui_*` exports out of `lib.rs` into `src/ffi/*.rs` or `src/lib_ffi/*.rs`, but only updated the `dispatch_drift` scanner. `styling_matrix_drift` still reads `lib.rs` only and now sees just `pub mod` lines, so every Wired matrix row falsely reports drift on Linux/Windows/Android post-merge (the test landed red on main as part of #1246's admin-bypass merge). Mirror the recursive walk from `crates/perry-dispatch/tests/dispatch_drift.rs::read_emit_dir` — scan every `.rs` file under `crates/perry-ui-<plat>/src/` and union the exports. Verified by applying this scanner on top of `origin/main`'s post-split tree: `cargo test -p perry-ui --test styling_matrix_drift` now passes.
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Same root cause as the previous styling_matrix_drift commit: PR #1246 split each platform's `pub extern "C" fn perry_ui_*` exports out of `lib.rs` into `src/ffi/*.rs` / `src/lib_ffi/*.rs`, but ffi_parity uses `include_str!` against lib.rs and so sees only `pub mod` declarations after the split. Switch the per-platform macro from compile-time `include_str!` of a single lib.rs to a runtime walk of the crate's `src/` tree, reading every `.rs` file and concatenating before the existing symbol scan. Mirrors the recursive walk in `styling_matrix.rs` and `dispatch_drift.rs`. Verified against `origin/main`'s post-split tree (temp worktree, patch applied on top): `cargo test -p perry-ui-test --test ffi_parity` — all 6 platform tests pass.
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`for…of` over a `String.split()` result and object-literal-return + destructure both silently returned wrong values on the iOS *device* target (no error, no crash) because three categories of pointer guards rejected legitimate libsystem_malloc pointers: 1. Cfg-gated 2 TB `HEAP_MIN` on macOS that also covered iOS / tvOS / watchOS / visionOS — `clean_arr_ptr`, `js_array_grow` forwarding, `js_value_length_f64` (POINTER_TAG + raw-bitcast paths), and `is_valid_obj_ptr`. iOS device libsystem_malloc lands in the same low GB range as Android/Linux, so every real pointer was null-ed. `js_value_length_f64` returning 0 is what made `arr.length` collapse to 0 in the failing `for…of`, and made `segments.length === 0` wrongly true after the destructure. 2. Unconditional 16 MB pointer floor (`< 0x1000000`) in five object field-access helpers — `js_object_get_field` (×4 variants), `js_object_get_field_by_name`, `js_object_set_field_by_name`, `js_object_has_own`, `ensure_key_in_keys_array`, `own_key_present`, `js_object_get_own_field_or_undef`. iOS device heap pointers below 16 MB hit this gate and silently routed through the small-handle dispatch path (or returned undefined), which is why the destructured `segments` came out empty. 3. Same as (2) for the iOS family on macOS's `is_valid_obj_ptr` — the downstream `GcHeader.obj_type` check is the real liveness guard, so lowering these thresholds to 64 KB (matches the bar already used in `js_object_get_field_ic_miss`) does not weaken correctness. The macOS host, iOS simulator (mimalloc on the host), Linux, Windows, and Android paths are unchanged in behavior: the simulator's allocations still land above 2 TB and pass the lowered guard cleanly, and the GcHeader/obj_type validation downstream still rejects bogus pointers. Verified: - cargo build --release runtime+stdlib+perry: clean - cargo build --release --target aarch64-apple-ios runtime+stdlib: clean - cargo test --release -p perry-runtime --lib: 451 passed - cargo test --release -p perry-stdlib --lib: 74 passed - cargo fmt --all -- --check: clean - Host repro from the issue compiles + prints the expected result. - Pre-existing perry-jsruntime test compile failure is unrelated (private `resolve_module_path` from #1246's file split). Closes #1136. Also addresses the same root cause for #1129; if #1129 lands first the overlapping field_get_set / is_valid_obj_ptr edits are no-ops.
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…path access PR #1246 ("Drop all files to <2k LOC + tighten size gate") split `crates/perry-ui-gtk4/src/lib.rs` and moved `resolve_asset_path` into `ffi::layout`, leaving the function private. `widgets/image.rs:33` still calls `crate::resolve_asset_path(path)` — root-level — so the gtk4 build on the linux-aarch64-gnu release target broke with: error[E0425]: cannot find function `resolve_asset_path` in the crate root --> crates/perry-ui-gtk4/src/widgets/image.rs:33:27 | 33 | let resolved = crate::resolve_asset_path(path); | ^^^^^^^^^^^^^^^^^^ not found in the crate root | note: function `crate::ffi::layout::resolve_asset_path` exists but is inaccessible Local macOS builds didn't hit this because perry-ui-gtk4 is gated off on macOS workspace builds (gtk4 system-libs only ship on Linux). It surfaced on the v0.5.1020 release-packages run (#26249481496) when the `linux-aarch64-gnu` matrix entry tried to link perry-ui-gtk4 and failed the whole release pipeline (winget / homebrew / npm / apt / apt-repo all got skipped via fail-fast). Two-line fix: - `ffi::layout::resolve_asset_path`: `fn` → `pub(crate) fn` so neighbour modules can reuse the exact resolution rule without duplicating it. - `widgets::image::create_file`: `crate::resolve_asset_path(path)` → `crate::ffi::layout::resolve_asset_path(path)` to point at the new module path. Refs #1246. Unblocks v0.5.1020 release-packages re-tag.
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…path access (#1298) PR #1246 ("Drop all files to <2k LOC + tighten size gate") split `crates/perry-ui-gtk4/src/lib.rs` and moved `resolve_asset_path` into `ffi::layout`, leaving the function private. `widgets/image.rs:33` still calls `crate::resolve_asset_path(path)` — root-level — so the gtk4 build on the linux-aarch64-gnu release target broke with: error[E0425]: cannot find function `resolve_asset_path` in the crate root --> crates/perry-ui-gtk4/src/widgets/image.rs:33:27 | 33 | let resolved = crate::resolve_asset_path(path); | ^^^^^^^^^^^^^^^^^^ not found in the crate root | note: function `crate::ffi::layout::resolve_asset_path` exists but is inaccessible Local macOS builds didn't hit this because perry-ui-gtk4 is gated off on macOS workspace builds (gtk4 system-libs only ship on Linux). It surfaced on the v0.5.1020 release-packages run (#26249481496) when the `linux-aarch64-gnu` matrix entry tried to link perry-ui-gtk4 and failed the whole release pipeline (winget / homebrew / npm / apt / apt-repo all got skipped via fail-fast). Two-line fix: - `ffi::layout::resolve_asset_path`: `fn` → `pub(crate) fn` so neighbour modules can reuse the exact resolution rule without duplicating it. - `widgets::image::create_file`: `crate::resolve_asset_path(path)` → `crate::ffi::layout::resolve_asset_path(path)` to point at the new module path. Refs #1246. Unblocks v0.5.1020 release-packages re-tag.
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Summary
Continues the file-size sweep started in PR #1241 (now merged). All 47 production Rust files that were over 2,000 LOC have been split into topical sub-modules. The CI gate (
scripts/check_file_size.sh) drops from 5,000 to 2,000 lines.Outcome: every tracked
*.rsfile is now under 2,000 lines, except 4 explicitly allowlisted files (each with a one-line rationale in the script).What changed
Four parallelized waves of splits + one cleanup wave:
Recipe (same as PR #1241, refined):
foo.rs→foo/mod.rs+ topical siblings.mod.rsre-exports with explicit namedpub(crate) use foo::{name1, name2, ...};— never glob, because glob re-exports don't propagate transitively through outerpub(crate) use crate::module::*;consumers (the root cause that broke half the PR Split 9 >5k-LOC source files + add 5k-LOC PR gate #1241 attempts).use super::*;to pick up shared types via the named re-exports above.fn→pub fnblanket promotion in siblings;mod.rs's re-export visibility caps the external surface.////#[...]lines stripped after every sed extraction (the boundary often chops the next fn's doc comment).ABI integrity: every FFI
#[no_mangle] pub extern "C" fnin perry-runtime / perry-ui-* preserved exactly. Per-crate#[no_mangle]counts verified before vs after for json (16→16), builtins (78→78), array (77→77), arena (4→4), string (61→61), promise (37→37), value (55→55), closure (58→58), buffer (82→82), url (55→55), object/* (123→123), perry-ui-macos (363→363), perry-ui-ios (377→377), perry-ui-android (364→364), perry-ui-visionos (362→362), perry-ui-tvos (365→365), perry-ui-windows (366→366), perry-ui-gtk4 (358→358).CI gate
scripts/check_file_size.shnow:*.rs(non-Rust source like JS runtime templates, HTML examples, Kotlin templates, JSON fixtures intentionally not policed).PERRY_FILE_SIZE_THRESHOLD).crates/perry-runtime/src/gc/tests.rs— left behind by the GC roadmap: make minor GC structurally cheap #1090 GC checkpoint split; owner-tracked.crates/perry-codegen-arkts/src/tests.rs— ArkTS golden-output test fixtures (top-down test scaffolding, not production code).crates/perry-api-manifest/src/entries.rs— generated-feel manifest table (length reflects API breadth, not complexity).crates/perry/src/commands/compile.rs— the deeply-coupledpar_itercodegen closure insiderun_with_parse_cache(~1,800 LOC, ~30 captured locals) needs extraction into a context-struct helper. High-risk surgery deferred to a follow-up PR. The other 16 sub-modules incompile/were already split.Test plan
cargo fmt --all -- --check— cleancargo check --workspace(excl. macOS/iOS/gtk4/jsruntime UI crates) — cleancargo test --workspace(same exclusions) — 0 failures (all 600+ test results pass after fixing 1 pre-existing test:dispatch_driftnow recurses the newemit/directory layout)./scripts/check_file_size.sh— OK: no Rust source files exceed 2000 linescompile.rs::run_with_parse_cache's par_iter codegen closure to drop compile.rs from the allowlistWhy
Big single-file modules slow IDE + cargo-check incrementality and hide regressions in code review. The gate prevents recurrence — adding to an existing 1,990-LOC file forces a split decision instead of letting it drift past 5k.