Martin Kustermann
4ee6a66270
The change in [0] increased the language version of pkg/dart2wasm. That in return changes how the package is formatted by the autoformatter. This CL runs now the formatter to re-format the code. Unfortunately this makes blame lists worse. But not doing it will make us have to disable auto-formatting before saving files which is very annoying. [0] https://dart-review.googlesource.com/c/sdk/+/487944 Change-Id: I6953fe0d6a824b2b79a26bbadb0bb977cec70b7a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/490821 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com>
65 lines
2.3 KiB
Dart
65 lines
2.3 KiB
Dart
// Copyright (c) 2024, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:wasm_builder/wasm_builder.dart' as w;
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import 'translator.dart';
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/// Builds a table of functions that can be used across modules.
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class CrossModuleFunctionTable {
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static const w.HeapType _tableHeapType = w.HeapType.func;
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final Translator translator;
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/// Contents of wasm table.
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final Map<w.BaseFunction, int> _table = {};
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late final w.TableBuilder _definedWasmTable = translator.mainModule.tables
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.define(w.RefType(_tableHeapType, nullable: true), _table.length);
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final WasmTableImporter _importedWasmTables;
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CrossModuleFunctionTable(this.translator)
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: _importedWasmTables = WasmTableImporter(
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translator,
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'cross-module-funcs-',
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);
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/// Gets the wasm table used to reference this table in [module].
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///
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/// This can either be the table definition itself or an import of it. Imports
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/// the table into [module] if it is not imported yet.
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w.Table getWasmTable(w.ModuleBuilder module) {
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return _importedWasmTables.get(_definedWasmTable, module);
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}
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/// Returns the index for [function] in the table allocating one if necessary.
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int indexForFunction(w.BaseFunction function) {
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assert(function.type.isStructuralSubtypeOf(_tableHeapType));
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return _table[function] ??= _table.length;
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}
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void output() {
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final importedTables = _importedWasmTables;
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_table.forEach((fun, index) {
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final targetModule = translator.moduleToBuilder[fun.enclosingModule]!;
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if (translator.isMainModule(targetModule)) {
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_definedWasmTable.moduleBuilder.elements
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.activeFunctionSegmentBuilderFor(_definedWasmTable)
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.setFunctionAt(index, fun);
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} else {
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// This will generate the imported table if it doesn't already exist.
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final importedTable = getWasmTable(targetModule) as w.ImportedTable;
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targetModule.elements
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.activeFunctionSegmentBuilderFor(importedTable)
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.setFunctionAt(index, fun);
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}
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});
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_definedWasmTable.minSize = _table.length;
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for (final table in importedTables.imports) {
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table.minSize = _table.length;
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}
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}
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}
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