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mojo/public/cpp/bindings/tests/validation_test_input_parser.cc

Index: mojo/public/cpp/bindings/tests/validation_test_input_parser.cc
diff --git a/mojo/public/cpp/bindings/tests/validation_test_input_parser.cc b/mojo/public/cpp/bindings/tests/validation_test_input_parser.cc
deleted file mode 100644
index 76787110ec25bc46f231ddb669c4c9a47e092d41..0000000000000000000000000000000000000000
--- a/mojo/public/cpp/bindings/tests/validation_test_input_parser.cc
+++ /dev/null
@@ -1,408 +0,0 @@
-// Copyright 2014 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 "mojo/public/cpp/bindings/tests/validation_test_input_parser.h"
-
-#include <assert.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <limits>
-#include <map>
-#include <set>
-#include <utility>
-
-namespace mojo {
-namespace test {
-namespace {
-
-class ValidationTestInputParser {
- public:
-  ValidationTestInputParser(const std::string& input,
-                            std::vector<uint8_t>* data,
-                            size_t* num_handles,
-                            std::string* error_message);
-  ~ValidationTestInputParser();
-
-  bool Run();
-
- private:
-  struct DataType;
-
-  typedef std::pair<const char*, const char*> Range;
-
-  typedef bool (ValidationTestInputParser::*ParseDataFunc)(
-      const DataType& type,
-      const std::string& value_string);
-
-  struct DataType {
-    const char* name;
-    size_t name_size;
-    size_t data_size;
-    ParseDataFunc parse_data_func;
-  };
-
-  // A dist4/8 item that hasn't been matched with an anchr item.
-  struct PendingDistanceItem {
-    // Where this data item is located in |data_|.
-    size_t pos;
-    // Either 4 or 8 (bytes).
-    size_t data_size;
-  };
-
-  bool GetNextItem(Range* range);
-
-  bool ParseItem(const Range& range);
-
-  bool ParseUnsignedInteger(const DataType& type,
-                            const std::string& value_string);
-  bool ParseSignedInteger(const DataType& type,
-                          const std::string& value_string);
-  bool ParseFloat(const DataType& type, const std::string& value_string);
-  bool ParseDouble(const DataType& type, const std::string& value_string);
-  bool ParseBinarySequence(const DataType& type,
-                           const std::string& value_string);
-  bool ParseDistance(const DataType& type, const std::string& value_string);
-  bool ParseAnchor(const DataType& type, const std::string& value_string);
-  bool ParseHandles(const DataType& type, const std::string& value_string);
-
-  bool StartsWith(const Range& range, const char* prefix, size_t prefix_length);
-
-  bool ConvertToUnsignedInteger(const std::string& value_string,
-                                unsigned long long int* value);
-
-  template <typename T>
-  void AppendData(T data) {
-    size_t pos = data_->size();
-    data_->resize(pos + sizeof(T));
-    memcpy(&(*data_)[pos], &data, sizeof(T));
-  }
-
-  template <typename TargetType, typename InputType>
-  bool ConvertAndAppendData(InputType value) {
-    if (value > std::numeric_limits<TargetType>::max() ||
-        value < std::numeric_limits<TargetType>::min()) {
-      return false;
-    }
-    AppendData(static_cast<TargetType>(value));
-    return true;
-  }
-
-  template <typename TargetType, typename InputType>
-  bool ConvertAndFillData(size_t pos, InputType value) {
-    if (value > std::numeric_limits<TargetType>::max() ||
-        value < std::numeric_limits<TargetType>::min()) {
-      return false;
-    }
-    TargetType target_value = static_cast<TargetType>(value);
-    assert(pos + sizeof(TargetType) <= data_->size());
-    memcpy(&(*data_)[pos], &target_value, sizeof(TargetType));
-    return true;
-  }
-
-  static const DataType kDataTypes[];
-  static const size_t kDataTypeCount;
-
-  const std::string& input_;
-  size_t input_cursor_;
-
-  std::vector<uint8_t>* data_;
-  size_t* num_handles_;
-  std::string* error_message_;
-
-  std::map<std::string, PendingDistanceItem> pending_distance_items_;
-  std::set<std::string> anchors_;
-};
-
-#define DATA_TYPE(name, data_size, parse_data_func) \
-  { name, sizeof(name) - 1, data_size, parse_data_func }
-
-const ValidationTestInputParser::DataType
-    ValidationTestInputParser::kDataTypes[] = {
-        DATA_TYPE("[u1]", 1, &ValidationTestInputParser::ParseUnsignedInteger),
-        DATA_TYPE("[u2]", 2, &ValidationTestInputParser::ParseUnsignedInteger),
-        DATA_TYPE("[u4]", 4, &ValidationTestInputParser::ParseUnsignedInteger),
-        DATA_TYPE("[u8]", 8, &ValidationTestInputParser::ParseUnsignedInteger),
-        DATA_TYPE("[s1]", 1, &ValidationTestInputParser::ParseSignedInteger),
-        DATA_TYPE("[s2]", 2, &ValidationTestInputParser::ParseSignedInteger),
-        DATA_TYPE("[s4]", 4, &ValidationTestInputParser::ParseSignedInteger),
-        DATA_TYPE("[s8]", 8, &ValidationTestInputParser::ParseSignedInteger),
-        DATA_TYPE("[b]", 1, &ValidationTestInputParser::ParseBinarySequence),
-        DATA_TYPE("[f]", 4, &ValidationTestInputParser::ParseFloat),
-        DATA_TYPE("[d]", 8, &ValidationTestInputParser::ParseDouble),
-        DATA_TYPE("[dist4]", 4, &ValidationTestInputParser::ParseDistance),
-        DATA_TYPE("[dist8]", 8, &ValidationTestInputParser::ParseDistance),
-        DATA_TYPE("[anchr]", 0, &ValidationTestInputParser::ParseAnchor),
-        DATA_TYPE("[handles]", 0, &ValidationTestInputParser::ParseHandles)};
-
-const size_t ValidationTestInputParser::kDataTypeCount =
-    sizeof(ValidationTestInputParser::kDataTypes) /
-    sizeof(ValidationTestInputParser::kDataTypes[0]);
-
-ValidationTestInputParser::ValidationTestInputParser(const std::string& input,
-                                                     std::vector<uint8_t>* data,
-                                                     size_t* num_handles,
-                                                     std::string* error_message)
-    : input_(input),
-      input_cursor_(0),
-      data_(data),
-      num_handles_(num_handles),
-      error_message_(error_message) {
-  assert(data_);
-  assert(num_handles_);
-  assert(error_message_);
-  data_->clear();
-  *num_handles_ = 0;
-  error_message_->clear();
-}
-
-ValidationTestInputParser::~ValidationTestInputParser() {
-}
-
-bool ValidationTestInputParser::Run() {
-  Range range;
-  bool result = true;
-  while (result && GetNextItem(&range))
-    result = ParseItem(range);
-
-  if (!result) {
-    *error_message_ =
-        "Error occurred when parsing " + std::string(range.first, range.second);
-  } else if (!pending_distance_items_.empty()) {
-    // We have parsed all the contents in |input_| successfully, but there are
-    // unmatched dist4/8 items.
-    *error_message_ = "Error occurred when matching [dist4/8] and [anchr].";
-    result = false;
-  }
-  if (!result) {
-    data_->clear();
-    *num_handles_ = 0;
-  } else {
-    assert(error_message_->empty());
-  }
-
-  return result;
-}
-
-bool ValidationTestInputParser::GetNextItem(Range* range) {
-  const char kWhitespaceChars[] = " \t\n\r";
-  const char kItemDelimiters[] = " \t\n\r/";
-  const char kEndOfLineChars[] = "\n\r";
-  while (true) {
-    // Skip leading whitespaces.
-    // If there are no non-whitespace characters left, |input_cursor_| will be
-    // set to std::npos.
-    input_cursor_ = input_.find_first_not_of(kWhitespaceChars, input_cursor_);
-
-    if (input_cursor_ >= input_.size())
-      return false;
-
-    if (StartsWith(
-            Range(&input_[0] + input_cursor_, &input_[0] + input_.size()),
-            "//",
-            2)) {
-      // Skip contents until the end of the line.
-      input_cursor_ = input_.find_first_of(kEndOfLineChars, input_cursor_);
-    } else {
-      range->first = &input_[0] + input_cursor_;
-      input_cursor_ = input_.find_first_of(kItemDelimiters, input_cursor_);
-      range->second = input_cursor_ >= input_.size()
-                          ? &input_[0] + input_.size()
-                          : &input_[0] + input_cursor_;
-      return true;
-    }
-  }
-  return false;
-}
-
-bool ValidationTestInputParser::ParseItem(const Range& range) {
-  for (size_t i = 0; i < kDataTypeCount; ++i) {
-    if (StartsWith(range, kDataTypes[i].name, kDataTypes[i].name_size)) {
-      return (this->*kDataTypes[i].parse_data_func)(
-          kDataTypes[i],
-          std::string(range.first + kDataTypes[i].name_size, range.second));
-    }
-  }
-
-  // "[u1]" is optional.
-  return ParseUnsignedInteger(kDataTypes[0],
-                              std::string(range.first, range.second));
-}
-
-bool ValidationTestInputParser::ParseUnsignedInteger(
-    const DataType& type,
-    const std::string& value_string) {
-  unsigned long long int value;
-  if (!ConvertToUnsignedInteger(value_string, &value))
-    return false;
-
-  switch (type.data_size) {
-    case 1:
-      return ConvertAndAppendData<uint8_t>(value);
-    case 2:
-      return ConvertAndAppendData<uint16_t>(value);
-    case 4:
-      return ConvertAndAppendData<uint32_t>(value);
-    case 8:
-      return ConvertAndAppendData<uint64_t>(value);
-    default:
-      assert(false);
-      return false;
-  }
-}
-
-bool ValidationTestInputParser::ParseSignedInteger(
-    const DataType& type,
-    const std::string& value_string) {
-  long long int value;
-  if (sscanf(value_string.c_str(), "%lli", &value) != 1)
-    return false;
-
-  switch (type.data_size) {
-    case 1:
-      return ConvertAndAppendData<int8_t>(value);
-    case 2:
-      return ConvertAndAppendData<int16_t>(value);
-    case 4:
-      return ConvertAndAppendData<int32_t>(value);
-    case 8:
-      return ConvertAndAppendData<int64_t>(value);
-    default:
-      assert(false);
-      return false;
-  }
-}
-
-bool ValidationTestInputParser::ParseFloat(const DataType& type,
-                                           const std::string& value_string) {
-  static_assert(sizeof(float) == 4, "sizeof(float) is not 4");
-
-  float value;
-  if (sscanf(value_string.c_str(), "%f", &value) != 1)
-    return false;
-
-  AppendData(value);
-  return true;
-}
-
-bool ValidationTestInputParser::ParseDouble(const DataType& type,
-                                            const std::string& value_string) {
-  static_assert(sizeof(double) == 8, "sizeof(double) is not 8");
-
-  double value;
-  if (sscanf(value_string.c_str(), "%lf", &value) != 1)
-    return false;
-
-  AppendData(value);
-  return true;
-}
-
-bool ValidationTestInputParser::ParseBinarySequence(
-    const DataType& type,
-    const std::string& value_string) {
-  if (value_string.size() != 8)
-    return false;
-
-  uint8_t value = 0;
-  for (std::string::const_iterator iter = value_string.begin();
-       iter != value_string.end();
-       ++iter) {
-    value <<= 1;
-    if (*iter == '1')
-      value++;
-    else if (*iter != '0')
-      return false;
-  }
-  AppendData(value);
-  return true;
-}
-
-bool ValidationTestInputParser::ParseDistance(const DataType& type,
-                                              const std::string& value_string) {
-  if (pending_distance_items_.find(value_string) !=
-      pending_distance_items_.end())
-    return false;
-
-  PendingDistanceItem item = {data_->size(), type.data_size};
-  data_->resize(data_->size() + type.data_size);
-  pending_distance_items_[value_string] = item;
-
-  return true;
-}
-
-bool ValidationTestInputParser::ParseAnchor(const DataType& type,
-                                            const std::string& value_string) {
-  if (anchors_.find(value_string) != anchors_.end())
-    return false;
-  anchors_.insert(value_string);
-
-  std::map<std::string, PendingDistanceItem>::iterator iter =
-      pending_distance_items_.find(value_string);
-  if (iter == pending_distance_items_.end())
-    return false;
-
-  PendingDistanceItem dist_item = iter->second;
-  pending_distance_items_.erase(iter);
-
-  size_t distance = data_->size() - dist_item.pos;
-  switch (dist_item.data_size) {
-    case 4:
-      return ConvertAndFillData<uint32_t>(dist_item.pos, distance);
-    case 8:
-      return ConvertAndFillData<uint64_t>(dist_item.pos, distance);
-    default:
-      assert(false);
-      return false;
-  }
-}
-
-bool ValidationTestInputParser::ParseHandles(const DataType& type,
-                                             const std::string& value_string) {
-  // It should be the first item.
-  if (!data_->empty())
-    return false;
-
-  unsigned long long int value;
-  if (!ConvertToUnsignedInteger(value_string, &value))
-    return false;
-
-  if (value > std::numeric_limits<size_t>::max())
-    return false;
-
-  *num_handles_ = static_cast<size_t>(value);
-  return true;
-}
-
-bool ValidationTestInputParser::StartsWith(const Range& range,
-                                           const char* prefix,
-                                           size_t prefix_length) {
-  if (static_cast<size_t>(range.second - range.first) < prefix_length)
-    return false;
-
-  return memcmp(range.first, prefix, prefix_length) == 0;
-}
-
-bool ValidationTestInputParser::ConvertToUnsignedInteger(
-    const std::string& value_string,
-    unsigned long long int* value) {
-  const char* format = nullptr;
-  if (value_string.find_first_of("xX") != std::string::npos)
-    format = "%llx";
-  else
-    format = "%llu";
-  return sscanf(value_string.c_str(), format, value) == 1;
-}
-
-}  // namespace
-
-bool ParseValidationTestInput(const std::string& input,
-                              std::vector<uint8_t>* data,
-                              size_t* num_handles,
-                              std::string* error_message) {
-  ValidationTestInputParser parser(input, data, num_handles, error_message);
-  return parser.Run();
-}
-
-}  // namespace test
-}  // namespace mojo