// Copyright 2019 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Flags: --expose-wasm --experimental-wasm-anyref load("test/mjsunit/wasm/wasm-module-builder.js"); (function TestGetAndSet() { function addTableWithAccessors(builder, type, size, name) { const table = builder.addTable(type, size); const set_sig = makeSig([kWasmI32, type], []); builder.addFunction('set_' + name, set_sig) .addBody([kExprLocalGet, 0, kExprLocalGet, 1, kExprTableSet, table.index]) .exportFunc(); const get_sig = makeSig([kWasmI32], [type]); builder.addFunction('get_' + name, get_sig) .addBody([kExprLocalGet, 0, kExprTableGet, table.index]) .exportFunc(); } const builder = new WasmModuleBuilder(); addTableWithAccessors(builder, kWasmAnyFunc, 10, 'table_func1'); addTableWithAccessors(builder, kWasmAnyRef, 20, 'table_ref1'); addTableWithAccessors(builder, kWasmAnyRef, 9, 'table_ref2'); addTableWithAccessors(builder, kWasmAnyFunc, 12, 'table_func2'); let exports = builder.instantiate().exports; const dummy_ref = {foo : 1, bar : 3}; const dummy_func = exports.set_table_func1; (function testTableGetInitialValue() { print(arguments.callee.name); // Tables are initialized with `null`. assertSame(null, exports.get_table_func1(1)); assertSame(null, exports.get_table_func2(2)); assertSame(null, exports.get_table_ref1(3)); assertSame(null, exports.get_table_ref2(4)); })(); (function testTableGetOOB() { print(arguments.callee.name); assertSame(null, exports.get_table_func2(11)); assertTraps(kTrapTableOutOfBounds, () => exports.get_table_func1(11)); assertTraps(kTrapTableOutOfBounds, () => exports.get_table_func2(21)); assertTraps(kTrapTableOutOfBounds, () => exports.get_table_func1(-1)); assertTraps(kTrapTableOutOfBounds, () => exports.get_table_func2(-2)); assertSame(null, exports.get_table_ref1(14)); assertTraps(kTrapTableOutOfBounds, () => exports.get_table_ref2(14)); assertTraps(kTrapTableOutOfBounds, () => exports.get_table_ref1(44)); assertTraps(kTrapTableOutOfBounds, () => exports.get_table_ref2(-1)); assertTraps(kTrapTableOutOfBounds, () => exports.get_table_ref1(-4)); })(); (function testTableSetOOB() { print(arguments.callee.name); exports.set_table_func2(11, dummy_func); assertTraps(kTrapTableOutOfBounds, () => exports.set_table_func1(11, dummy_func)); assertTraps(kTrapTableOutOfBounds, () => exports.set_table_func2(21, dummy_func)); exports.set_table_ref1(14, dummy_ref); assertTraps(kTrapTableOutOfBounds, () => exports.set_table_ref2(14, dummy_ref)); assertTraps(kTrapTableOutOfBounds, () => exports.set_table_ref1(44, dummy_ref)); })(); (function testTableSet() { print(arguments.callee.name); assertSame(null, exports.get_table_func1(3)); exports.set_table_func1(3, dummy_func); assertSame(dummy_func, exports.get_table_func1(3)); assertSame(null, exports.get_table_func2(3)); assertSame(null, exports.get_table_func2(7)); exports.set_table_func2(7, dummy_func); assertSame(dummy_func, exports.get_table_func2(7)); assertSame(null, exports.get_table_func1(7)); assertSame(null, exports.get_table_ref1(3)); exports.set_table_ref1(3, dummy_ref); assertSame(dummy_ref, exports.get_table_ref1(3)); assertSame(null, exports.get_table_ref2(3)); assertSame(null, exports.get_table_ref2(7)); exports.set_table_ref2(7, dummy_ref); assertSame(dummy_ref, exports.get_table_ref2(7)); assertSame(null, exports.get_table_ref1(7)); })(); (function testSetFunctionTableInvalidType() { print(arguments.callee.name); assertThrows(() => exports.set_table_func2(7, dummy_ref), TypeError); })(); })(); (function testGetFunctionFromInitializedTable() { print(arguments.callee.name); const value1 = 11; const value2 = 22; const value3 = 13; const builder = new WasmModuleBuilder(); const t1 = builder.addTable(kWasmAnyFunc, 10).index; const t2 = builder.addTable(kWasmAnyFunc, 12).index; const f1 = builder.addFunction('f', kSig_i_v).addBody([kExprI32Const, value1]); const f2 = builder.addFunction('f', kSig_i_v).addBody([kExprI32Const, value2]); const f3 = builder.addFunction('f', kSig_i_v).addBody([kExprI32Const, value3]); builder.addFunction('get_t1', kSig_a_i) .addBody([kExprLocalGet, 0, kExprTableGet, t1]) .exportFunc(); builder.addFunction('get_t2', kSig_a_i) .addBody([kExprLocalGet, 0, kExprTableGet, t2]) .exportFunc(); const offset1 = 3; const offset2 = 9; builder.addElementSegment(t1, offset1, false, [f1.index, f2.index]); builder.addElementSegment(t2, offset2, false, [f3.index, f1.index]); const instance = builder.instantiate(); assertEquals(value1, instance.exports.get_t1(offset1)()); assertEquals(value2, instance.exports.get_t1(offset1 + 1)()); assertEquals(value3, instance.exports.get_t2(offset2)()); assertEquals(value1, instance.exports.get_t2(offset2 + 1)()); })(); (function testRefFuncInTableIsCallable() { print(arguments.callee.name); const expected = 54; const index = 3; const builder = new WasmModuleBuilder(); const table_index = builder.addTable(kWasmAnyFunc, 15, 15).index; const sig_index = builder.addType(kSig_i_v); const function_index = builder.addFunction('hidden', sig_index) .addBody([kExprI32Const, expected]) .index; builder.addFunction('main', kSig_i_v) .addBody([ kExprI32Const, index, // entry index kExprRefFunc, function_index, // function reference kExprTableSet, table_index, // -- kExprI32Const, index, // entry index kExprCallIndirect, sig_index, table_index // -- ]) .exportFunc(); const instance = builder.instantiate(); assertEquals(expected, instance.exports.main()); })();