Initial import of v8-native WASM.

test/mjsunit/wasm/indirect-calls.js

+// 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.
+
+load("test/mjsunit/wasm/wasm-constants.js");
+
+var module = (function () {
+  var kFuncWithBody = 9;
+  var kFuncImported = 7;
+  var kBodySize1 = 5;
+  var kBodySize2 = 8;
+  var kFuncTableSize = 8;
+  var kSubOffset = 13 + kFuncWithBody + kBodySize1 + kFuncImported + kFuncWithBody + kBodySize2 + kFuncTableSize + 1;
+  var kAddOffset = kSubOffset + 4;
+  var kMainOffset = kAddOffset + 4;
+
+  var ffi = new Object();
+  ffi.add = (function(a, b) { return a + b | 0; });
+
+  return WASM.instantiateModule(bytes(
+    // -- signatures
+    kDeclSignatures, 2,
+    2, kAstI32, kAstI32, kAstI32, // int, int -> int
+    3, kAstI32, kAstI32, kAstI32, kAstI32, // int, int, int -> int
+    // -- function #0 (sub)
+    kDeclFunctions, 3,
+    kDeclFunctionName,
+    0, 0,                         // signature offset
+    kSubOffset, 0, 0, 0,          // name offset
+    kBodySize1, 0,                // body size
+    kExprI32Sub,                  // --
+    kExprGetLocal, 0,             // --
+    kExprGetLocal, 1,             // --
+    // -- function #1 (add)
+    kDeclFunctionName | kDeclFunctionImport,
+    0, 0,                         // signature offset
+    kAddOffset, 0, 0, 0,          // name offset
+    // -- function #2 (main)
+    kDeclFunctionName | kDeclFunctionExport,
+    1, 0,                         // signature offset
+    kMainOffset, 0, 0, 0,         // name offset
+    kBodySize2, 0,                // body size
+    kExprCallIndirect, 0,
+    kExprGetLocal, 0,
+    kExprGetLocal, 1,
+    kExprGetLocal, 2,
+    // -- function table
+    kDeclFunctionTable,
+    3,
+    0, 0,
+    1, 0,
+    2, 0,
+    kDeclEnd,
+    's', 'u', 'b', 0,              // name
+    'a', 'd', 'd', 0,              // name
+    'm', 'a', 'i', 'n', 0          // name
+  ), ffi);
+})();
+
+// Check the module exists.
+assertFalse(module === undefined);
+assertFalse(module === null);
+assertFalse(module === 0);
+assertEquals("object", typeof module);
+assertEquals("function", typeof module.main);
+
+assertEquals(5, module.main(0, 12, 7));
+assertEquals(19, module.main(1, 12, 7));
+
+assertTraps(kTrapFuncSigMismatch, "module.main(2, 12, 33)");
+assertTraps(kTrapFuncInvalid, "module.main(3, 12, 33)");