Files
codegraph/__tests__/fixtures/kernel-parity/TortureMini.dart
T
d1b75a1a27 feat(kernel): R7b Dart walker — dart module, vendored-grammar-C d4d8f3e + wasm byte-copy vendor, dart default-routed (#1386)
R7b batch 4 #4 — the FINAL R7b language (docs/design/dart-kernel-port-checklist.md
is the authoritative quirk list). The fourth vendored-grammar-C language,
with a twist: production dart resolved its wasm from tree-sitter-wasms,
whose dart dependency is an UNPINNED github:UserNobody14/tree-sitter-dart —
a routine dependency update would have silently changed dart's grammar.
This PR byte-copies the shipping 0.1.13 artifact into src/extraction/wasm/
(VENDORED_WASM_LANGS += dart) and compiles the same-commit (d4d8f3e337d8)
parser.c/scanner.c in the kernel — table identity proven by the
kernel-grammar-parity row. crates.io tree-sitter-dart is the nielsenko
fork (different lineage) — rejected.

The center of gravity is THE SIBLING-BODY DOUBLE-WALK, reproduced
bug-for-bug: dart attaches every function/method body as a NEXT SIBLING of
its signature, and the TS walkers consume each body TWICE — once via
resolveBody (attributed to the function/method) and once via the enclosing
generic walk (attributed to the file/class). Duplicate local-function
nodes with the SAME id under different parents, duplicated
calls/instantiates refs, and file/class-attributed fn-ref twins all emit
in the exact observed interleave (a dedicated fixture pins the
duplicate-id rows; the bloc kind-census spot-check pins the counts).

Also preserved (probe-pinned): the extractBareCall selector matrix (the
first callTypes=[] language — cascades completely invisible, `?.` encodes
like `.`, the `ConfigT.load()` calls+references double emission with no
callee-of-call skip, capitalized-chain `Foo.create().run` re-encode,
const-object callee names); the constructor hooks (unnamed ctor skipped,
named ctors/factories renamed to the CTOR name with the class as
returnType, `@override (T) m()` record-misparse rescued by class-name
validation); operator methods minting `method "<anonymous>"`;
static_final_declaration constants via the visitNode hook while instance
fields mint NOTHING; the prefixed-return-type prefix bug (`other.OtherClass
f()` → returnType `other`); enum `with` mixins silent vs `implements`
working; anonymous extensions named after the ON type; deferred imports
invisible; named-argument callbacks NOT fn-ref-captured (the Flutter
`onPressed:` idiom — future accuracy PR, TS-side first); `async*`/`sync*`
NOT async; value-refs with the LIVE dart sibling-body pull and the
`$X`-vs-`${X}` interpolation asymmetry; dartdoc kept in all three comment
forms with the annotation-broken chain.

Gates: parity sweeps first-run 0-diff on shelf/bloc/flutter — 5,815 clean
files byte-parity, deferrals 10/21/1341 ≈ the survey's 10/21/~1340
(both-arm grammar reality: empty object patterns — the sealed-class
idiom — and unnamed `library;` dominate; --max-deferral 0.3); full-init
dumps byte-identical ×3 (shelf 7,959 / bloc 40,026 / flutter 1,855,319
dump lines); bloc per-kind node census identical across arms (the
double-walk duplicate rows survive the store identically);
kernel-dart-parity suite (7 fixtures + in-memory CRLF variants +
double-walk duplicate-id pin + generated-file skip pin + two defer pins);
full suite 2,688 green ×2 with CODEGRAPH_KERNEL_EXPECT=1.
DEFAULT_ROUTED += dart (20 langs — R7b COMPLETE).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 19:55:48 -05:00

78 lines
1.6 KiB
Dart

import 'dart:async';
import 'package:foo/bar.dart' as bar show Baz hide Qux;
import 'pkg.dart' deferred as lazy;
export 'src/out.dart' show Pub;
part 'part1.dart';
/// Doc line one.
/// Doc line two.
void topFn(int a, String b) {
var local = 5;
int typed = 6;
final con = 7;
int uninit;
uninit = 8;
local = a;
helper(a);
obj.method(a);
Config.setting;
Config.load();
w?.render();
list..add(1)..add(2);
final w2 = Widget(1);
final w3 = new Widget(2);
const e = EdgeInsets.all(8.0);
Foo.create().run();
lower().chain();
print('sum ${a + compute()} $local');
}
// plain comment
int get topGetter => 42;
set topSetter(int v) {}
class Widget extends Base with Mix1, Mix2 implements Draw, Paint {
static const int kMax = 10;
static final shared = Widget(0);
final int size;
int count = 0;
var loose;
late String name;
Widget(this.size);
Widget.named(this.size) { init(); }
factory Widget.create() => Widget(1);
Widget._() : size = 0;
@override
void render(Canvas c) { c.draw(); }
static Widget make() => Widget(3);
int get area => size * size;
set area(int v) { count = v; }
Future<void> load() async { await fetch(); }
operator +(Widget o) => Widget(size + o.size);
}
mixin Mix1 on Base {
void mixMethod() { helper(0); }
}
extension WidgetExt on Widget {
void extMethod() { render(null); }
}
enum Color { red, green, blue }
enum Status with Mix1 implements Draw {
ok(200),
err(500);
final int code;
const Status(this.code);
bool get good => code < 400;
static Status parse(int c) => ok;
}
typedef IntFn = int Function(int);
typedef void OldStyle(int x);
abstract class Base {}
class Draw {}