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main.dart
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main.dart
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// ignore_for_file: avoid_print, prefer_const_literals_to_create_immutables
import 'dart:convert';
import 'dart:io';
import 'dart:typed_data';
import 'package:test/test.dart';
import 'package:wasm_run/load_module.dart';
// TODO(wat): implement wat in main api
// ignore: implementation_imports
import 'package:wasm_run/src/ffi.dart' show defaultInstance;
// ignore: implementation_imports
import 'package:wasm_run/src/ffi/setup_dynamic_library.dart'
show setUpDesktopDynamicLibrary;
import 'package:wasm_run/wasm_run.dart';
import 'package:wasm_run_example/runner_identity/runner_identity.dart';
import 'package:wasm_run_example/simd_test.dart' show simdTests;
import 'package:wasm_run_example/threads_test.dart';
import 'package:wasm_run_example/wasi_test.dart';
import 'package:wasm_wit_component_example/types_gen_big_int_test.dart'
show typesGenBigIntWitComponentTests;
import 'package:wasm_wit_component_example/types_gen_test.dart'
show typesGenWitComponentTests;
import 'package:wasm_wit_component_example/wit_generator_test.dart';
const isWeb = identical(0, 0.0);
const compiledWasmLibraryPath =
// ignore: unnecessary_const
const String.fromEnvironment('compiledWasmLibraryPath');
final isLibrary = !isWeb || compiledWasmLibraryPath.isNotEmpty;
Future<Uint8List> getBinary({
required String wat,
required String base64Binary,
}) async {
Uint8List binary;
try {
final w = defaultInstance();
binary = await w.parseWatFormat(wat: wat);
// ignore: avoid_catching_errors
} catch (_) {
if (isWeb) {
return base64Decode(base64Binary);
} else {
rethrow;
}
}
final encoded = base64Encode(binary);
if (encoded != base64Binary) {
throw StateError(
'Invalid base64 encoded module.\nParam: $base64Binary\nProcessedWat: $encoded',
);
}
return binary;
}
class TestArgs {
final Future<Uint8List> Function()? getWasiExampleBytes;
final Future<Uint8List> Function()? getThreadsExampleBytes;
final Future<Uint8List> Function()? getWitComponentExampleBytes;
final Future<Directory> Function()? getDirectory;
TestArgs({
required this.getWasiExampleBytes,
required this.getThreadsExampleBytes,
required this.getWitComponentExampleBytes,
required this.getDirectory,
});
}
void testAll({TestArgs? testArgs}) {
print('RUNNING ALL TEST IN ${getRunnerIdentity()}');
test('WasmFeature', () async {
final runtime = await wasmRuntimeFeatures();
final defaultFeatures = runtime.defaultFeatures;
final supportedFeatures = runtime.supportedFeatures;
expect(defaultFeatures.wasiFeatures, isNotNull);
expect(supportedFeatures.wasiFeatures, isNotNull);
final alwaysTrue = [
supportedFeatures.mutableGlobal,
supportedFeatures.saturatingFloatToInt,
supportedFeatures.signExtension,
supportedFeatures.referenceTypes,
supportedFeatures.multiValue,
supportedFeatures.bulkMemory,
supportedFeatures.floats,
defaultFeatures.mutableGlobal,
defaultFeatures.saturatingFloatToInt,
defaultFeatures.signExtension,
defaultFeatures.referenceTypes,
defaultFeatures.multiValue,
defaultFeatures.bulkMemory,
defaultFeatures.floats,
];
expect(alwaysTrue, Iterable.generate(alwaysTrue.length, (_) => true));
final alwaysFalse = [
supportedFeatures.componentModel,
supportedFeatures.memoryControl,
supportedFeatures.garbageCollection,
defaultFeatures.componentModel,
defaultFeatures.memoryControl,
defaultFeatures.garbageCollection,
];
expect(alwaysFalse, Iterable.generate(alwaysFalse.length, (_) => false));
expect(supportedFeatures.exceptions, !isLibrary);
if (!isLibrary) {
expect(defaultFeatures, supportedFeatures);
}
expect(runtime.name, isIn(['wasmi', 'wasmtime', 'browser']));
switch (runtime.name) {
case 'wasmi':
expect(runtime.version, '0.31.0');
expect(runtime.isBrowser, false);
break;
case 'wasmtime':
expect(runtime.version, '14.0.4');
expect(runtime.isBrowser, false);
break;
case 'browser':
expect(runtime.version, WasmRunLibrary.version);
expect(runtime.isBrowser, true);
break;
default:
throw StateError('Unknown runtime: ${runtime.name}');
}
});
test('simple add', () async {
final Uint8List binary = await getBinary(
wat: r'''
(module
(func (export "add") (param $a i32) (param $b i32) (result i32)
local.get $a
local.get $b
i32.add
)
)
''',
base64Binary:
'AGFzbQEAAAABBwFgAn9/AX8DAgEABwcBA2FkZAAACgkBBwAgACABagsAEARuYW1lAgkBAAIAAWEBAWI=',
);
final module = compileWasmModuleSync(binary);
expect(
module.getExports().map((e) => e.toString()),
[
const WasmModuleExport('add', WasmExternalKind.function).toString(),
],
);
expect(module.getImports(), isEmpty);
final instance = module.builder().buildSync();
final add = instance.getFunction('add')!;
expect(
add.params,
isLibrary ? [ValueTy.i32, ValueTy.i32] : [null, null],
);
expect(add.results, isLibrary ? [ValueTy.i32] : null);
final result = add.call([1, 4]);
expect(result, [5]);
print('result $result');
});
test('import function', () async {
final binary = await getBinary(
wat: r'''
(module
(import "host" "hello" (func $host_hello (param i32)))
(func (export "hello")
(call $host_hello (i32.const 3))
)
)
''',
base64Binary:
'AGFzbQEAAAABCAJgAX8AYAAAAg4BBGhvc3QFaGVsbG8AAAMCAQEHCQEFaGVsbG8AAQoIAQYAQQMQAAsAFARuYW1lAQ0BAApob3N0X2hlbGxv',
);
final module = compileWasmModuleSync(binary);
expect(
module.getExports().map((e) => e.toString()),
[
const WasmModuleExport('hello', WasmExternalKind.function).toString(),
],
);
expect(
module.getImports().map((e) => e.toString()),
[
const WasmModuleImport(
'host',
'hello',
WasmExternalKind.function,
).toString(),
],
);
int? argsList;
final hostHello = WasmFunction.voidReturn(
(int args) {
argsList = args;
},
params: [ValueTy.i32],
);
final instance =
(module.builder()..addImport('host', 'hello', hostHello)).buildSync();
expect(argsList, isNull);
final hello = instance.getFunction('hello')!;
hello.inner();
final result = hello();
expect(result, isEmpty);
expect(argsList, 3);
});
test('globals', () async {
final binary = await getBinary(
wat: r'''
(module
(global $g (import "js" "global") (mut i32))
(func (export "getGlobal") (result i32)
(global.get $g))
(func (export "incGlobal")
(global.set $g
(i32.add (global.get $g) (i32.const 1))))
)''',
base64Binary:
'AGFzbQEAAAABCAJgAAF/YAAAAg4BAmpzBmdsb2JhbAN/AQMDAgABBxkCCWdldEdsb2JhbAAACWluY0dsb2JhbAABChACBAAjAAsJACMAQQFqJAALAAsEbmFtZQcEAQABZw==',
);
final module = await compileWasmModule(binary);
expect(
module.getExports().map((e) => e.toString()),
[
const WasmModuleExport('getGlobal', WasmExternalKind.function)
.toString(),
const WasmModuleExport('incGlobal', WasmExternalKind.function)
.toString(),
],
);
expect(
module.getImports().map((e) => e.toString()),
[
const WasmModuleImport(
'js',
'global',
WasmExternalKind.global,
).toString(),
],
);
final builder = module.builder();
final global = builder.createGlobal(WasmValue.i32(2), mutable: true);
expect(global.get(), 2);
global.set(WasmValue.i32(1));
expect(global.get(), 1);
final instance =
builder.addImports([WasmImport('js', 'global', global)]).buildSync();
final getGlobal = instance.getFunction('getGlobal')!;
expect(getGlobal.params, <ValueTy>[]);
expect(getGlobal.results, isLibrary ? [ValueTy.i32] : null);
final incGlobal = instance.getFunction('incGlobal')!;
expect(incGlobal.params, <ValueTy>[]);
expect(incGlobal.results, isLibrary ? <ValueTy>[] : null);
expect(getGlobal([]), [1]);
expect(incGlobal([]), <dynamic>[]);
expect(getGlobal([]), [2]);
expect(global.get(), 2);
global.set(WasmValue.i32(4));
expect(getGlobal([]), [4]);
expect(global.get(), 4);
});
test('memory utf8 string', () async {
final binary = await getBinary(
wat: r'''
(module
(import "console" "logUtf8" (func $log (param i32 i32)))
(import "js" "mem" (memory 1))
(data (i32.const 0) "Hi")
(func (export "writeHi")
i32.const 0 ;; pass offset 0 to log
i32.const 2 ;; pass length 2 to log
call $log))''',
base64Binary:
'AGFzbQEAAAABCQJgAn9/AGAAAAIdAgdjb25zb2xlB2xvZ1V0ZjgAAAJqcwNtZW0CAAEDAgEBBwsBB3dyaXRlSGkAAQoKAQgAQQBBAhAACwsIAQBBAAsCSGkADQRuYW1lAQYBAANsb2c=',
);
final module = await compileWasmModule(binary);
expect(
module.getExports().map((e) => e.toString()),
[
const WasmModuleExport('writeHi', WasmExternalKind.function).toString(),
],
);
expect(
module.getImports().map((e) => e.toString()),
[
const WasmModuleImport(
'console',
'logUtf8',
WasmExternalKind.function,
).toString(),
const WasmModuleImport(
'js',
'mem',
WasmExternalKind.memory,
).toString(),
],
);
final builder = module.builder();
final memory = builder.createMemory(minPages: 1);
expect(memory.lengthInBytes, WasmMemory.bytesPerPage);
expect(memory.lengthInPages, 1);
expect(memory.view, Uint8List(WasmMemory.bytesPerPage));
String? result;
final logUtf8 = WasmFunction.voidReturn(
(int offset, int length) {
final bytes = memory.view.sublist(offset, offset + length);
result = utf8.decode(bytes);
},
params: [ValueTy.i32, ValueTy.i32],
);
final instance = builder
.addImports([WasmImport('js', 'mem', memory)])
.addImport('console', 'logUtf8', logUtf8)
.buildSync();
// expect(memory[1], utf8.encode('i').first);
expect(memory.view[1], utf8.encode('i').first);
final writeHi = instance.getFunction('writeHi')!;
expect(writeHi.params, <ValueTy>[]);
expect(writeHi.results, isLibrary ? <ValueTy>[] : null);
expect(result, isNull);
expect(writeHi([]), <dynamic>[]);
expect(result, 'Hi');
memory.grow(2);
expect(memory.lengthInBytes, WasmMemory.bytesPerPage * 3);
expect(memory.lengthInPages, 3);
final m = Uint8List(WasmMemory.bytesPerPage * 3);
m.setRange(0, 2, utf8.encode('Hi'));
expect(memory.view, m);
memory.view[1] = utf8.encoder.convert('o')[0];
// memory[1] = utf8.encode('o').first;
expect(writeHi([]), <dynamic>[]);
expect(result, 'Ho');
});
test('table func call', () async {
final binary = await getBinary(
wat: r'''
(module
(table 2 funcref)
(func $f1 (result i32)
i32.const 42)
(func $f2 (result i32)
i32.const 13)
(elem (i32.const 0) $f1 $f2)
(type $return_i32 (func (result i32)))
(func (export "callByIndex") (param $i i32) (result i32)
local.get $i
call_indirect (type $return_i32))
)''',
base64Binary:
'AGFzbQEAAAABCgJgAAF/YAF/AX8DBAMAAAEEBAFwAAIHDwELY2FsbEJ5SW5kZXgAAgkIAQBBAAsCAAEKEwMEAEEqCwQAQQ0LBwAgABEAAAsAJwRuYW1lAQkCAAJmMQECZjICBgECAQABaQQNAQAKcmV0dXJuX2kzMg==',
);
final module = compileWasmModuleSync(binary);
expect(
module.getExports().map((e) => e.toString()),
[
const WasmModuleExport('callByIndex', WasmExternalKind.function)
.toString(),
],
);
expect(
module.getImports().map((e) => e.toString()),
<String>[],
);
final instance = await module.builder().build();
final call = instance.getFunction('callByIndex')!;
expect(call.params, [isLibrary ? ValueTy.i32 : null]);
expect(call.results, isLibrary ? [ValueTy.i32] : null);
expect(call([0]), [42]);
expect(call.inner(1), 13);
expect(() => call([2]), throwsA(isA<Object>()));
});
test('tables import', () async {
final binary = await getBinary(
wat: r'''
(module
(import "js" "tbl" (table 3 funcref))
(func $f42 (result i32) i32.const 42)
(func $f83 (result i32) i32.const 83)
(func $f64p9 (param i64) (result i64) (i64.add (local.get 0) (i64.const 9)))
(elem (i32.const 0) $f42 $f83 $f64p9)
)
''',
base64Binary:
'AGFzbQEAAAABCgJgAAF/YAF+AX4CDAECanMDdGJsAXAAAwMEAwAAAQkJAQBBAAsDAAECChQDBABBKgsFAEHTAAsHACAAQgl8CwAZBG5hbWUBEgMAA2Y0MgEDZjgzAgVmNjRwOQ==',
);
final module = compileWasmModuleSync(binary);
expect(
module.getExports().map((e) => e.toString()),
<String>[],
);
expect(
module.getImports().map((e) => e.toString()),
[
const WasmModuleImport(
'js',
'tbl',
WasmExternalKind.table,
).toString(),
],
);
final builder = module.builder();
final table = builder.createTable(
minSize: 3,
value: WasmValue.funcRef(null),
);
expect(table.length, 3);
expect(table[0], isNull);
await builder.addImports([WasmImport('js', 'tbl', table)]).build();
final f42 = table.get(0)! as WasmFunction;
expect(f42.inner(), 42);
expect((table[1]! as WasmFunction)(), [83]);
final i64p9 = table.get(2)! as WasmFunction;
expect(
i64p9([i64.fromBigInt(BigInt.from(5))]),
[i64.fromInt(5 + 9)],
);
expect(
i64p9.inner(i64.fromInt(208302802)),
i64.fromBigInt(BigInt.from(208302802 + 9)),
);
table[1] = WasmValueRef.funcRef(f42);
expect((table.get(1)! as WasmFunction)(), [42]);
if (!isLibrary) {
// Can's update table with user created functions in web browsers.
// The can only be set by exports
return;
}
final f43 = WasmFunction(
() => 43,
params: [],
results: [ValueTy.i32],
);
final f84 = WasmFunction(
() => 84.3,
params: [],
results: [ValueTy.f64],
);
table[0] = WasmValueRef.funcRef(f43);
table[1] = WasmValueRef.funcRef(f84);
expect(table[0], isNot(f42));
expect(table[0], isNot(null));
expect((table.get(0)! as WasmFunction).inner(), 43);
expect((table[1]! as WasmFunction)(), [84.3]);
table.set(
0,
WasmValueRef.funcRef(WasmFunction(
(I64 p) => [-1.4, p],
params: [ValueTy.i64],
results: [ValueTy.f64, ValueTy.i64],
)),
);
expect(
(table.get(0)! as WasmFunction)([i64.fromBigInt(BigInt.from(5))]),
[-1.4, i64.fromInt(5)],
);
// TODO: should we allow this? 5 and BigInt.from(5) are both valid
expect(
(table.get(0)! as WasmFunction)([i64.fromInt(5)]),
[-1.4, i64.fromBigInt(BigInt.from(5))],
);
});
test(
'loading with WasmFileUris',
() async {
final initialUri = WasmFileUris(
uri: Uri.parse('https://example.com/assets/wasm.wasm'),
simdUri: Uri.parse('https://example.com/assets/wasm.simd.wasm'),
threadsSimdUri:
Uri.parse('https://example.com/assets/wasm.threadsSimd.wasm'),
fallback: WasmFileUris(
uri: Uri.parse('https://example.com/assets/wasm.fallback.wasm'),
),
);
final uris = WasmFileUris.fromList([initialUri]);
// TODO: save to file? fallback to uri if not found in simd/threads?
final runtimeFeatures = await wasmRuntimeFeatures();
try {
await uris.loadModule(getUriBodyBytes: (uri) async => Uint8List(0));
throw Exception('should not reach');
} on WasmFileUrisException catch (e) {
expect(e.errors, hasLength(2));
final toString = e.toString();
expect(
toString,
contains(
'WasmFileUrisException(WasmFileUris(uri: https://example.com/assets/wasm.wasm',
),
);
expect(
toString,
contains('fallbackUri: https://example.com/assets/wasm.wasm'),
);
expect(
toString,
contains(
runtimeFeatures.supportedFeatures.threads &&
runtimeFeatures.supportedFeatures.simd
? 'Url "https://example.com/assets/wasm.threadsSimd.wasm" returned an empty body'
: runtimeFeatures.supportedFeatures.simd
? 'Url "https://example.com/assets/wasm.simd.wasm" returned an empty body'
: 'Url "https://example.com/assets/wasm.wasm" returned an empty body',
),
);
}
for (final v in [
{
'threads': false,
'simd': false,
'uri': initialUri.uri,
},
{
'threads': true,
'simd': true,
'uri': initialUri.threadsSimdUri,
},
{
'threads': false,
'simd': true,
'uri': initialUri.simdUri,
},
{
'threads': true,
'simd': false,
'uri': initialUri.uri,
},
]) {
final features = WasmFeatures(
mutableGlobal: true,
saturatingFloatToInt: true,
signExtension: true,
referenceTypes: true,
multiValue: true,
bulkMemory: true,
simd: v['simd']! as bool,
relaxedSimd: true,
threads: v['threads']! as bool,
tailCall: true,
floats: true,
multiMemory: true,
exceptions: true,
memory64: true,
extendedConst: true,
componentModel: true,
memoryControl: true,
garbageCollection: true,
typeReflection: true,
);
final uri = uris.uriForFeatures(
WasmRuntimeFeatures(
isBrowser: false,
name: 'wasmtime',
version: '0.2.1',
defaultFeatures: features,
supportedFeatures: features,
),
);
expect(uri, v['uri']);
}
},
);
/// WIT Component tests
typesGenWitComponentTests(
getWitComponentExampleBytes: testArgs?.getWitComponentExampleBytes,
);
typesGenBigIntWitComponentTests(
getWitComponentExampleBytes: testArgs?.getWitComponentExampleBytes,
);
/// WIT Component Generator tests
witDartGeneratorTests(getDirectory: testArgs?.getDirectory);
/// WASI tests
wasiTest(testArgs: testArgs);
/// Threads tests
threadsTest(testArgs: testArgs);
test(
'setUpDesktopDynamicLibrary',
testOn: 'windows || mac-os || linux',
() async {
if (Platform.isAndroid || Platform.isIOS) return;
final library = Directory.current.uri
.resolve('dart_wasm_run_dynamic_library')
.toFilePath();
await setUpDesktopDynamicLibrary(dynamicLibraryPath: library);
addTearDown(() => File(library).deleteSync());
expect(WasmRunLibrary.isReachable(), true);
final dynLib = openDynamicLibrary(library);
expect(
() => WasmRunLibrary.set(dynLib),
throwsA(
predicate(
(p0) => p0
.toString()
.contains('WasmRun bindings were already configured'),
),
),
);
expect(
() => WasmRunLibrary.setUp(override: true),
throwsA(
predicate(
(p0) => p0
.toString()
.contains('WasmRun bindings were already configured'),
),
),
);
},
);
test('multi value', () async {
final binary = await getBinary(
wat: r'''
(module
(func $f (import "" "f") (param i32 f32) (result f32 i32))
(func $g (export "g") (param i32 f32) (result f32 i32)
(call $f (local.get 0) (local.get 1))
)
(func $round_trip_many
(export "round_trip_many")
(param i64 i64 i64 i64 i64 i64 i64 i64 i64 i64)
(result i64 i64 i64 i64 i64 i64 i64 i64 i64 i64)
local.get 0
local.get 1
local.get 2
local.get 3
local.get 4
local.get 5
local.get 6
local.get 7
local.get 8
local.get 9)
)''',
base64Binary:
'AGFzbQEAAAABHwJgAn99An1/YAp+fn5+fn5+fn5+Cn5+fn5+fn5+fn4CBgEAAWYAAAMDAgABBxcCAWcAAQ9yb3VuZF90cmlwX21hbnkAAgohAggAIAAgARAACxYAIAAgASACIAMgBCAFIAYgByAIIAkLAB8EbmFtZQEYAwABZgEBZwIPcm91bmRfdHJpcF9tYW55',
);
final module = compileWasmModuleSync(binary);
final instance = await module
.builder()
.addImport(
'',
'f',
WasmFunction(
(int a, double b) {
return [b, a];
},
params: [ValueTy.i32, ValueTy.f32],
results: [ValueTy.f32, ValueTy.i32],
),
)
.build();
final g = instance.getFunction('g')!;
final roundTripMany = instance.getFunction('round_trip_many')!;
expect(g([42, 409.32000732421875]), [(409.32000732421875), 42]);
expect(g.inner(42, 3.240000009536743), [3.240000009536743, 42]);
final params = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10].map(i64.fromInt).toList();
expect(roundTripMany(params), params);
if (!isLibrary) {
// TODO: this throws in the browser:
// NoSuchMethodError: method not found: 'call'
// Receiver: Instance of 'JavaScriptFunction'
// Arguments: [Instance of 'BigInt', Instan
//
// But you may use roundTripMany.call(params) instead
expect(Function.apply(roundTripMany.inner, params), params);
}
final results = roundTripMany.inner(
i64.fromInt(1),
i64.fromInt(2),
i64.fromInt(3),
i64.fromInt(4),
i64.fromInt(5),
i64.fromInt(6),
i64.fromInt(7),
i64.fromInt(8),
i64.fromInt(9),
i64.fromInt(10),
);
expect(results, params);
});
/// SIMD v128 tests
simdTests();
test('Reference types', () async {
final binary = await getBinary(
wat: r'''
(module
(table $table (export "table") 10 externref)
(global $global (export "global") (mut externref) (ref.null extern))
(func (export "func") (param externref) (result externref)
local.get 0
)
)
''',
base64Binary:
'AGFzbQEAAAABBgFgAW8BbwMCAQAEBAFvAAoGBgFvAdBvCwcZAwV0YWJsZQEABmdsb2JhbAMABGZ1bmMAAAoGAQQAIAALABoEbmFtZQUIAQAFdGFibGUHCQEABmdsb2JhbA==',
);
final module = compileWasmModuleSync(binary);
final instance = module.builder().buildSync();
final table = instance.getTable('table')!;
final global = instance.getGlobal('global')!;
final func = instance.getFunction('func')!;
expect(table.length, 10);
expect(table[0], isNull);
table[0] = WasmValueRef.externRef(1);
expect(table[0], 1);
expect(global.get(), isNull);
global.set(WasmValue.externRef(2));
expect(global.get(), 2);
expect(func.inner('3'), '3');
final l = ['2'];
table.set(1, WasmValueRef.externRef(l));
expect(identical(l, table.get(1)), true);
});
/// https://github.com/bytecodealliance/wasmtime/blob/main/examples/fuel.rs
/// TODO: print rust error in sync execution
test('fueling instance execution limit', () async {
final binary0 = await getBinary(
wat: r'''
(module
(func $fibonacci (param $n i32) (result i32)
(if
(i32.lt_s (local.get $n) (i32.const 2))
(then (return (local.get $n)))
)
(i32.add
(call $fibonacci (i32.sub (local.get $n) (i32.const 1)))
(call $fibonacci (i32.sub (local.get $n) (i32.const 2)))
)
)
(export "fibonacci" (func $fibonacci))
)
''',
base64Binary:
'AGFzbQEAAAABBgFgAX8BfwMCAQAHDQEJZmlib25hY2NpAAAKHgEcACAAQQJIBEAgAA8LIABBAWsQACAAQQJrEABqCwAbBG5hbWUBDAEACWZpYm9uYWNjaQIGAQABAAFu',
);
final module = compileWasmModuleSync(
binary0,
config: ModuleConfig(consumeFuel: true),
);
final builder = module.builder();
final runtime = await wasmRuntimeFeatures();
final WasmInstanceFuel? fuel = builder.fuel();
if (!isLibrary) {
expect(fuel, isNull);
return;
}
expect(fuel, isNotNull);
expect(fuel!.fuelConsumed(), 0);
expect(fuel.consumeFuel(0), 0);
expect(fuel.fuelAdded(), 0);
fuel.addFuel(1);
expect(fuel.fuelAdded(), 1);
expect(fuel.consumeFuel(0), 1);
expect(fuel.fuelConsumed(), 0);
expect(fuel.consumeFuel(1), 0);
expect(fuel.fuelConsumed(), 1);
final instance = await builder.build();
expect(fuel, instance.fuel());
fuel.addFuel(10000);
expect(fuel.fuelAdded(), 10001);
final fibonacci = instance.getFunction('fibonacci')!;
final List<int> values = [];
final List<int> fuelConsumed = [];
int n = 0;
while (true) {
try {
fuelConsumed.add(fuel.fuelConsumed());
values.add(fibonacci.inner(n) as int);
n++;
} catch (e) {
expect(e.toString(), contains('fuel'));
break;
}
}
final isWasmtime = runtime.name == 'wasmtime';
expect(values, [
0,
1,
1,
2,
3,
5,
8,
13,
21,
34,
55,
// TODO(fueling): try to make fueling similar between runtimes
if (isWasmtime) 89
]);
final runtimeFuel = isWasmtime
? [1, 7, 13, 39, 85, 171, 317, 563, 969, 1635, 2721, 4487, 7353]
: [1, 19, 37, 88, 172, 322, 571, 985, 1663, 2770, 4570, 7492];
expect(fuelConsumed, runtimeFuel);
expect(fuel.fuelAdded(), 10001);
fuel.addFuel(100);
expect(fuel.consumeFuel(0), isWasmtime ? 94 : 104);
expect(fuel.fuelAdded(), 10101);
});
print('CONFIGURED ALL TEST IN ${getRunnerIdentity()}');
}
// TODO: more tests
// test('shared memory', () async {
// final binary = await getBinary(
// wat: r'''
// ''',
// base64Binary: '',
// );
// });
// shared table
// shared0.wat:
// (module
// (import "js" "memory" (memory 1))
// (import "js" "table" (table 1 funcref))
// (elem (i32.const 0) $shared0func)
// (func $shared0func (result i32)
// i32.const 0
// i32.load)
// )
// shared1.wat:
// (module
// (import "js" "memory" (memory 1))
// (import "js" "table" (table 1 funcref))
// (type $void_to_i32 (func (result i32)))
// (func (export "doIt") (result i32)
// i32.const 0
// i32.const 42
// i32.store ;; store 42 at address 0
// i32.const 0
// call_indirect (type $void_to_i32))
// )
// Shared memories (memory 1 2 shared)
// test('memories', () async {
// final binary = await getBinary(
// // https://github.com/bytecodealliance/wasmtime/blob/main/examples/multimemory.wat
// wat: r'''
// (module
// (memory (export "memory0") 2 3)
// (memory (export "memory1") 2 4)
// (func (export "size0") (result i32) (memory.size 0))
// (func (export "load0") (param i32) (result i32)
// local.get 0
// i32.load8_s 0
// )
// (func (export "store0") (param i32 i32)
// local.get 0
// local.get 1
// i32.store8 0
// )
// (func (export "size1") (result i32) (memory.size 1))
// (func (export "load1") (param i32) (result i32)
// local.get 0
// i32.load8_s 1
// )
// (func (export "store1") (param i32 i32)
// local.get 0
// local.get 1
// i32.store8 1
// )
// (data (memory 0) (i32.const 0x1000) "\01\02\03\04")
// (data (memory 1) (i32.const 0x1000) "\04\03\02\01")
// )
// ''',
// base64Binary:
// 'AGFzbQEAAAABCAJgAX8AYAAAAg4BBGhvc3QFaGVsbG8AAAMCAQEHCQEFaGVsbG8AAQoIAQYAQQMQAAsAFARuYW1lAQ0BAApob3N0X2hlbGxv',
// );
// });
// });
// https://github.com/bytecodealliance/wasmtime/blob/main/examples/memory.wat
// (module
// (memory (export "memory") 2 3)
// (func (export "size") (result i32) (memory.size))
// (func (export "load") (param i32) (result i32)
// (i32.load8_s (local.get 0))
// )
// (func (export "store") (param i32 i32)
// (i32.store8 (local.get 0) (local.get 1))
// )
// (data (i32.const 0x1000) "\01\02\03\04")
// )
const endian = Endian.little;
class Parser {
final Uint8List memView;
final int initialMemOffset;
final int viewDelta;
int memOffset;
ByteData get byteData => memView.buffer.asByteData();
bool _isDealloc = false;
/// Utilities for parsing data from a [memView].
// TODO(test-improve): improve api, maybe pass WasmMemory
// TODO(test-improve): improve api, only one method parses and it requires dealloc
Parser(
this.memView,
this.initialMemOffset, {
this.viewDelta = 0,
}) : memOffset = initialMemOffset;
void _dealloc(void Function(int offset, int bytes)? dealloc) {
if (dealloc != null) {