Add PPB_VarArray_Dev support - part 1.

ppapi/cpp/dev/var_array_dev.cc

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ppapi/cpp/dev/var_array_dev.h"
+
+#include "ppapi/c/dev/ppb_var_array_dev.h"
+#include "ppapi/cpp/logging.h"
+#include "ppapi/cpp/module_impl.h"
+
+namespace pp {
+
+namespace {
+
+template <> const char* interface_name<PPB_VarArray_Dev_0_1>() {
+  return PPB_VAR_ARRAY_DEV_INTERFACE_0_1;
+}
+
+}  // namespace
+
+VarArray_Dev::VarArray_Dev() : Var(Null()) {
+  if (has_interface<PPB_VarArray_Dev_0_1>())
+    var_ = get_interface<PPB_VarArray_Dev_0_1>()->Create();
+  else
+    PP_NOTREACHED();
+}
+
+VarArray_Dev::VarArray_Dev(const Var& var) : Var(var) {
+  if (!var.is_array()) {
+    PP_NOTREACHED();
+
+    // This takes care of releasing the reference that this object holds.
+    Var::operator=(Var(Null()));
+  }
+}
+
+VarArray_Dev::VarArray_Dev(const VarArray_Dev& other) : Var(other) {
+}
+
+VarArray_Dev::~VarArray_Dev() {
+}
+
+VarArray_Dev& VarArray_Dev::operator=(const VarArray_Dev& other) {
+  Var::operator=(other);
+  return *this;
+}
+
+Var& VarArray_Dev::operator=(const Var& other) {
+  if (other.is_array()) {
+    Var::operator=(other);
+  } else {
+    PP_NOTREACHED();
+    Var::operator=(Var(Null()));
+  }
+  return *this;
+}
+
+Var VarArray_Dev::Get(uint32_t index) const {
+  if (!has_interface<PPB_VarArray_Dev_0_1>())
+    return Var();
+
+  return Var(PASS_REF, get_interface<PPB_VarArray_Dev_0_1>()->Get(var_, index));
+}
+
+PP_Bool VarArray_Dev::Set(uint32_t index, const Var& value) {
+  if (!has_interface<PPB_VarArray_Dev_0_1>())
+    return PP_FALSE;
+
+  return get_interface<PPB_VarArray_Dev_0_1>()->Set(var_, index,
+                                                    value.pp_var());
+}
+
+uint32_t VarArray_Dev::GetLength() const {
+  if (!has_interface<PPB_VarArray_Dev_0_1>())
+    return 0;
+
+  return get_interface<PPB_VarArray_Dev_0_1>()->GetLength(var_);
+}
+
+PP_Bool VarArray_Dev::SetLength(uint32_t length) {
+  if (!has_interface<PPB_VarArray_Dev_0_1>())
+    return PP_FALSE;
+
+  return get_interface<PPB_VarArray_Dev_0_1>()->SetLength(var_, length);
+}
+
+}  // namespace pp