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Unified Diff: mojo/public/cpp/bindings/tests/validation_test_input_parser.cc

Issue 814543006: Move //mojo/{public, edk} underneath //third_party (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 5 years, 11 months ago
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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 9d2607d0ad4b074fbe543c4d84dcc2d4a769d5b7..0000000000000000000000000000000000000000
--- a/mojo/public/cpp/bindings/tests/validation_test_input_parser.cc
+++ /dev/null
@@ -1,410 +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>
-
-#include "mojo/public/c/system/macros.h"
-
-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
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