v8/test/mjsunit/wasm/calls.js
titzer 8e9c019bf2 [wasm] Memory is exported on the module.exports object.
R=ahaas@chromium.org,bradnelson@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1775353003

Cr-Commit-Position: refs/heads/master@{#34621}
2016-03-09 13:32:53 +00:00

105 lines
2.7 KiB
JavaScript

// Copyright 2015 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
load("test/mjsunit/wasm/wasm-constants.js");
load("test/mjsunit/wasm/wasm-module-builder.js");
function assertModule(module, memsize) {
// Check the module exists.
assertFalse(module === undefined);
assertFalse(module === null);
assertFalse(module === 0);
assertEquals("object", typeof module);
// Check the memory is an ArrayBuffer.
var mem = module.exports.memory;
assertFalse(mem === undefined);
assertFalse(mem === null);
assertFalse(mem === 0);
assertEquals("object", typeof mem);
assertTrue(mem instanceof ArrayBuffer);
for (var i = 0; i < 4; i++) {
module.exports.memory = 0; // should be ignored
assertEquals(mem, module.exports.memory);
}
assertEquals(memsize, module.exports.memory.byteLength);
}
function assertFunction(module, func) {
assertEquals("object", typeof module.exports);
var exp = module.exports[func];
assertFalse(exp === undefined);
assertFalse(exp === null);
assertFalse(exp === 0);
assertEquals("function", typeof exp);
return exp;
}
(function SubTest() {
var builder = new WasmModuleBuilder();
builder.addMemory(1, 1, true);
builder.addFunction("sub", [kAstI32, kAstI32, kAstI32])
.addBody([
kExprI32Sub, // --
kExprGetLocal, 0, // --
kExprGetLocal, 1]) // --
.exportFunc()
var module = builder.instantiate();
assertModule(module, kPageSize);
// Check the properties of the sub function.
var sub = assertFunction(module, "sub");
assertEquals(-55, sub(33, 88));
assertEquals(-55555, sub(33333, 88888));
assertEquals(-5555555, sub(3333333, 8888888));
})();
(function NopTest() {
var builder = new WasmModuleBuilder();
var kPages = 2;
builder.addMemory(kPages, kPages, true);
builder.addFunction("nop", [kAstStmt])
.addBody([kExprNop])
.exportFunc();
var module = builder.instantiate();
assertModule(module, kPageSize * kPages);
var nop = assertFunction(module, "nop");
assertEquals(undefined, nop());
})();
(function testLt() {
var builder = new WasmModuleBuilder();
var kPages = 3;
builder.addMemory(kPages, kPages, true);
builder.addFunction("flt", [kAstI32, kAstF64, kAstF64])
.addBody([
kExprF64Lt, // --
kExprGetLocal, 0, // --
kExprGetLocal, 1]) // --
.exportFunc();
var module = builder.instantiate();
assertModule(module, kPageSize * kPages);
var flt = assertFunction(module, "flt");
assertEquals(1, flt(-2, -1));
assertEquals(0, flt(7.3, 7.1));
assertEquals(1, flt(7.1, 7.3));
})();