Initial import of v8-native WASM.

test/mjsunit/wasm/ffi-error.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");
+
+function testCallFFI(ffi) {
+  var kBodySize = 6;
+  var kNameAddOffset = 28 + kBodySize + 1;
+  var kNameMainOffset = kNameAddOffset + 4;
+
+  var data = bytes(
+    kDeclMemory,
+    12, 12, 1,                  // memory
+    // -- signatures
+    kDeclSignatures, 1,
+    2, kAstI32, kAstF64, kAstF64, // (f64,f64)->int
+    // -- foreign function
+    kDeclFunctions, 2,
+    kDeclFunctionName | kDeclFunctionImport,
+    0, 0,                       // signature index
+    kNameAddOffset, 0, 0, 0,    // name offset
+    // -- main function
+    kDeclFunctionName | kDeclFunctionExport,
+    0, 0,                       // signature index
+    kNameMainOffset, 0, 0, 0,   // name offset
+    kBodySize, 0,
+    // main body
+    kExprCallFunction, 0,       // --
+    kExprGetLocal, 0,           // --
+    kExprGetLocal, 1,           // --
+    // names
+    kDeclEnd,
+    'f', 'u', 'n', 0,           //  --
+    'm', 'a', 'i', 'n', 0       //  --
+  );
+
+  print("instantiate FFI");
+  var module = WASM.instantiateModule(data, ffi);
+}
+
+// everything is good.
+(function() {
+  var ffi = new Object();
+  ffi.fun = function(a, b) { print(a, b); }
+  testCallFFI(ffi);
+})();
+
+
+// FFI object should be an object.
+assertThrows(function() {
+  var ffi = 0;
+  testCallFFI(ffi);
+});
+
+
+// FFI object should have a "fun" property.
+assertThrows(function() {
+  var ffi = new Object();
+  testCallFFI(ffi);
+});
+
+
+// "fun" should be a JS function.
+assertThrows(function() {
+  var ffi = new Object();
+  ffi.fun = new Object();
+  testCallFFI(ffi);
+});
+
+
+// "fun" should be a JS function.
+assertThrows(function() {
+  var ffi = new Object();
+  ffi.fun = 0;
+  testCallFFI(ffi);
+});