de17316ad2
Implement the latest spec changes:
- Allow declarative segments to behave like passive & dropped segments.
- Enforce that only declared functions may be returned or used in globals
as funcref.
- Ensure that table fill does not modify any entries if OOB.
Spec tests for select and br_table are still failing due to proposal issue
Bug: v8:10156
R=ahaas@chromium.org
Change-Id: I5b95be36a67bc7482a84b848908cc4cbdf94af03
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2027458
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Emanuel Ziegler <ecmziegler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66297}
80 lines
2.7 KiB
JavaScript
80 lines
2.7 KiB
JavaScript
// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --experimental-wasm-anyref --experimental-wasm-bulk-memory
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load("test/mjsunit/wasm/wasm-module-builder.js");
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(function TestAnyRefTableSetWithMultipleTypes() {
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print(arguments.callee.name);
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let table = new WebAssembly.Table({element: "anyref", initial: 10});
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// Table should be initialized with null.
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assertEquals(null, table.get(1));
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let obj = {'hello' : 'world'};
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table.set(2, obj);
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assertSame(obj, table.get(2));
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table.set(3, 1234);
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assertEquals(1234, table.get(3));
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table.set(4, 123.5);
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assertEquals(123.5, table.get(4));
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table.set(5, undefined);
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assertEquals(undefined, table.get(5));
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// Overwrite entry 4, because null would otherwise be the default value.
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table.set(4, null);
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assertEquals(null, table.get(4));
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table.set(7, print);
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assertEquals(print, table.get(7));
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assertThrows(() => table.set(12), RangeError);
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})();
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(function TestImportAnyRefTable() {
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print(arguments.callee.name);
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const builder = new WasmModuleBuilder();
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const table_index = builder.addImportedTable("imp", "table", 3, 10, kWasmAnyRef);
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builder.addFunction('get', kSig_r_v)
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.addBody([kExprI32Const, 0, kExprTableGet, table_index]);
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let table_ref = new WebAssembly.Table({element: "anyref", initial: 3, maximum: 10});
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builder.instantiate({imp:{table: table_ref}});
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let table_func = new WebAssembly.Table({ element: "anyfunc", initial: 3, maximum: 10 });
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assertThrows(() => builder.instantiate({ imp: { table: table_func } }),
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WebAssembly.LinkError, /imported table does not match the expected type/);
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})();
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(function TestAnyRefDropDeclarativeElementSegment() {
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print(arguments.callee.name);
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const builder = new WasmModuleBuilder();
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builder.addDeclarativeElementSegment([null]);
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builder.addFunction('drop', kSig_v_v)
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.addBody([kNumericPrefix, kExprElemDrop, 0])
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.exportFunc();
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const instance = builder.instantiate();
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// Counts as double-drop because declarative segments are dropped on
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// initialization and is therefore not expected to throw.
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instance.exports.drop();
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})();
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(function TestAnyRefTableInitFromDeclarativeElementSegment() {
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print(arguments.callee.name);
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const builder = new WasmModuleBuilder();
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const table = builder.addTable(kWasmAnyFunc, 10);
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builder.addDeclarativeElementSegment([null]);
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builder.addFunction('init', kSig_v_v)
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.addBody([
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kExprI32Const, 0, kExprI32Const, 0, kExprI32Const, 1, kNumericPrefix,
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kExprTableInit, table.index, 0
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])
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.exportFunc();
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const instance = builder.instantiate();
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assertTraps(kTrapTableOutOfBounds, () => instance.exports.init());
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})();
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