The previous split was fragile and error-prone by construction. The split
DECISION was made deep in the tree (`visit_declaration`,
`visit_export_named_declaration`), but the APPLICATION -- replacing one
statement with several -- happens at the statement-list level, bridged by a
deferred, address-keyed `statement_replace_map` + `statement_stack`. That
indirection let two independent deciders write the same key: because
`visit_declaration` also fires for an export''s inner declaration, the
bare-var and export deciders raced and silently dropped the `export` keyword
on multi-declarator exports under keepNames (#9973). #9974 refereed the race
with a `next_declaration_is_exported` flag -- papering over the collision
with shared mutable state rather than removing it, leaving the same shape
ready to break the next time a statement form is added.

Remove the fragile mechanism, not just another instance of the bug:
consolidate the decision into a single `split_multi_declarator` helper,
called once per statement from the three slots that own statement placement
(`visit_program`, `visit_statements`, `visit_statement`). Each statement is
inspected exactly once with full context, so export-vs-bare is decided by
node type -- no deferred map, no flag, and the collision becomes
structurally impossible. Removes `statement_replace_map`, `statement_stack`,
`next_declaration_is_exported`, and the `visit_declaration` /
`visit_export_named_declaration` overrides.

Pure refactor: output is byte-identical (full integration suite passes with
zero snapshot changes).

#9982)

## Why

The previous pre-scan split was **fragile and error-prone by construction** — this refactor removes the mechanism, not just another instance of the bug.

- The split *decision* was made deep in the tree (`visit_declaration`, `visit_export_named_declaration`), but the *application* — replacing one statement with several — happens at the statement-list level. The two were bridged by a deferred, address-keyed `statement_replace_map` + `statement_stack`.
- That indirection let **two independent deciders write the same map key**. Because `visit_declaration` also fires for an export''s inner declaration, the bare-var and export deciders raced — silently dropping the `export` keyword on multi-declarator exports under `keepNames` (#9973).
- #9974 refereed the race with a `next_declaration_is_exported` boolean — papering over the collision with shared mutable state rather than removing it. The same shape (two overlapping mutators coordinated by a flag) stays just as easy to break the next time a statement form is added.

## What

Consolidate the decision into a single `split_multi_declarator(stmt)` helper, called once per statement from the three slots that own statement placement — `visit_program`, `visit_statements`, `visit_statement`. Each statement is inspected exactly once, with full context, so export-vs-bare is decided by matching the node type. No deferred map, no side-channel flag, and the collision becomes **structurally impossible** (one decider per slot).

## Removed

- `statement_replace_map` + `statement_stack` (deferred, address-keyed replacement)
- `next_declaration_is_exported` (the #9974 referee flag)
- the `visit_declaration` and `visit_export_named_declaration` overrides

## Behavior

Pure refactor — output is byte-identical. `cargo test -p rolldown --test integration` passes (1768 tests) with **zero snapshot changes**; clippy clean.

## [1.1.4] - 2026-07-01

### 🚀 Features

- disable `experimental.lazyBarrel` by default (#10071) by @shulaoda

### 🐛 Bug Fixes

- dev: disable lazy barrel in dev mode (#10060) by @shulaoda
- generate: keep full JSON interface under preserveModules namespa… (#10056) by @IWANABETHATGUY
- check finalize_other_specifiers in its own Debug attribute (#10032) by @shulaoda
- serialize the KeepAssign unused minify option as "keep_assign" (#10031) by @shulaoda
- keep fragments after the newline fragment in MagicString::last_line (#10023) by @shulaoda
- generate: undeclared JSON named exports under preserveModules (#10020) (#10027) by @IWANABETHATGUY
- deconflict: rename CJS-wrapped locals that shadow chunk-root bindings (#9921) by @IWANABETHATGUY
- rolldown: keep entry facade when a shared chunk holds another entry's module (#9997) by @hyf0
- treeshake: also bail JSON default split when the object escapes (#9996) by @IWANABETHATGUY
- don't classify await in a strict-mode function as top-level await (#9987) by @shulaoda
- avoid spurious leading newline in addon hooks (banner/footer/intro/outro) (#9989) by @shulaoda
- handle JSON default mutation bailouts (#9972) by @TheAlexLichter
- plugin: make lazy hook metadata enumerable (#9991) by @TheAlexLichter
- dev: make init errors in lazy-compiled modules catchable (#9981) by @h-a-n-a
- treeshake: keep computed-key side effects on namespace member access (#9986) by @shulaoda
- binding: validate replace plugin delimiters length instead of panicking (#9984) by @shulaoda
- reconstruct nested rest patterns in into_expression (#9980) by @IWANABETHATGUY
- reconstruct rest patterns as spread in into_expression (#9976) by @shulaoda
- preserve export keyword on multi-declarator exports under keepNames (#9974) by @shulaoda
- deterministically keep the shortest name for deduplicated assets (#9948) by @x1024
- treeshake: apply @__NO_SIDE_EFFECTS__ to cross-chunk namespace calls (#9960) by @IWANABETHATGUY

### 🚜 Refactor

- drop redundant program scope enter/leave in finalizer (#10049) by @shulaoda
- deconflict: extract collect_chunk_scope_captured_names (#10006) by @IWANABETHATGUY
- unify pre-scan multi-declarator split into one decision site (#9982) by @IWANABETHATGUY
- common: return bool from SymbolRef::is_not_reassigned (#9962) by @IWANABETHATGUY

### 📚 Documentation

- rolldown: remove outdated comment for removing parenthesized expression (#10062) by @Dunqing
- use GitHub-flavored alert for Etiquette note in contribution guide (#10012) by @IWANABETHATGUY
- replace: explain the delimiters left and right boundaries (#9985) by @shulaoda
- ast-mutation: remove stale Address Use section after pre-scan refactor (#9983) by @IWANABETHATGUY
- remove fathom (#9968) by @mdong1909
- contribution-guide: code-format main branch references (#9966) by @IWANABETHATGUY
- contribution-guide: fix stale REPL note and tidy wording (#9957) by @hyf0
- contribution-guide: clarify when to discuss before opening a PR (#9955) by @hyf0

### ⚡ Performance

- disable preserve_parens across all parse paths (#10057) by @Dunqing
- common: inline declared_symbols with SmallVec (#9920) by @IWANABETHATGUY
- common: pack TaggedSymbolRef into 8 bytes (#9919) by @IWANABETHATGUY
- sourcemap: skip newline scan on the no-sourcemap join fast path (#9936) by @Boshen

### 🧪 Testing

- dev: error in lazy module should be catchable (#9975) by @sapphi-red
- dev: reject unknown lazy compile modules (#9969) by @sapphi-red

### ⚙️ Miscellaneous Tasks

- deps: update actions/cache action to v6 (#10001) by @renovate[bot]
- trigger vite ecosystem-ci from PR comments (#10058) by @shulaoda
- deps: update napi to v3.10.0 (#10063) by @renovate[bot]
- remove unused From impl for RolldownLabelSpan (#10055) by @shulaoda
- remove dead Diagnostic::with_kind method (#10054) by @shulaoda
- remove unused StatementExt methods (#10053) by @shulaoda
- remove unused ExpressionExt methods (#10052) by @shulaoda
- remove commented-out re_export_all_names field (#10051) by @shulaoda
- deps: update pnpm to v11.9.0 (#10047) by @renovate[bot]
- remove the unused BindingGenerateHmrPatchReturn napi type (#10034) by @shulaoda
- remove the dead inline_entry_chunk_wrapping scaffolding (#10037) by @shulaoda
- deps: bump oxc_resolver to 11.22.0 (#10045) by @Boshen
- remove never-constructed MatchImportKind::_Ignore variant (#10041) by @shulaoda
- remove the unused ScheduledBuild napi struct (#10033) by @shulaoda
- remove dead compute_hmr_update_single method (#10040) by @shulaoda
- drop the redundant visited.insert in manual code splitting (#10038) by @shulaoda
- remove the dead output_assets vector in render_chunk_to_assets (#10036) by @shulaoda
- remove the unused From<String>/Display impls for BindingLogLevel (#10035) by @shulaoda
- deps: upgrade oxc to 0.138.0 and migrate to per-type AST construction (#10018) by @shulaoda
- deps: update rust crates (#9911) by @renovate[bot]
- deps: update test262 submodule for tests (#10016) by @rolldown-guard[bot]
- deps: update github actions (#9999) by @renovate[bot]
- deps: update npm packages (#10000) by @renovate[bot]

### ◀️ Revert

- "fix(plugin): make lazy hook metadata enumerable (#9991)" (#10005) by @shulaoda

### ❤️ New Contributors

* @x1024 made their first contribution in [#9948](#9948)

Co-authored-by: shulaoda <165626830+shulaoda@users.noreply.github.com>