diff options
| -rw-r--r-- | include/libcamera/internal/yaml_parser.h | 12 | ||||
| -rw-r--r-- | src/libcamera/yaml_parser.cpp | 78 |
2 files changed, 55 insertions, 35 deletions
diff --git a/include/libcamera/internal/yaml_parser.h b/include/libcamera/internal/yaml_parser.h index 81cc0e25..06a41146 100644 --- a/include/libcamera/internal/yaml_parser.h +++ b/include/libcamera/internal/yaml_parser.h @@ -162,7 +162,10 @@ public: std::size_t size() const; template<typename T> - std::optional<T> get() const; + std::optional<T> get() const + { + return Getter<T>{}.get(*this); + } template<typename T, typename U> T get(U &&defaultValue) const @@ -199,6 +202,8 @@ public: private: LIBCAMERA_DISABLE_COPY_AND_MOVE(YamlObject) + template<typename T> + friend struct Getter; friend class YamlParserContext; enum class Type { @@ -207,6 +212,11 @@ private: Value, }; + template<typename T> + struct Getter { + std::optional<T> get(const YamlObject &obj) const; + }; + Type type_; std::string value_; diff --git a/src/libcamera/yaml_parser.cpp b/src/libcamera/yaml_parser.cpp index b68a44c1..56670ba7 100644 --- a/src/libcamera/yaml_parser.cpp +++ b/src/libcamera/yaml_parser.cpp @@ -118,14 +118,15 @@ std::size_t YamlObject::size() const #ifndef __DOXYGEN__ template<> -std::optional<bool> YamlObject::get() const +std::optional<bool> +YamlObject::Getter<bool>::get(const YamlObject &obj) const { - if (type_ != Type::Value) + if (obj.type_ != Type::Value) return std::nullopt; - if (value_ == "true") + if (obj.value_ == "true") return true; - else if (value_ == "false") + else if (obj.value_ == "false") return false; return std::nullopt; @@ -182,14 +183,15 @@ bool parseUnsignedInteger(const std::string &str, unsigned long max, } /* namespace */ template<> -std::optional<int8_t> YamlObject::get() const +std::optional<int8_t> +YamlObject::Getter<int8_t>::get(const YamlObject &obj) const { - if (type_ != Type::Value) + if (obj.type_ != Type::Value) return std::nullopt; long value; - if (!parseSignedInteger(value_, std::numeric_limits<int8_t>::min(), + if (!parseSignedInteger(obj.value_, std::numeric_limits<int8_t>::min(), std::numeric_limits<int8_t>::max(), &value)) return std::nullopt; @@ -197,14 +199,15 @@ std::optional<int8_t> YamlObject::get() const } template<> -std::optional<uint8_t> YamlObject::get() const +std::optional<uint8_t> +YamlObject::Getter<uint8_t>::get(const YamlObject &obj) const { - if (type_ != Type::Value) + if (obj.type_ != Type::Value) return std::nullopt; unsigned long value; - if (!parseUnsignedInteger(value_, std::numeric_limits<uint8_t>::max(), + if (!parseUnsignedInteger(obj.value_, std::numeric_limits<uint8_t>::max(), &value)) return std::nullopt; @@ -212,14 +215,15 @@ std::optional<uint8_t> YamlObject::get() const } template<> -std::optional<int16_t> YamlObject::get() const +std::optional<int16_t> +YamlObject::Getter<int16_t>::get(const YamlObject &obj) const { - if (type_ != Type::Value) + if (obj.type_ != Type::Value) return std::nullopt; long value; - if (!parseSignedInteger(value_, std::numeric_limits<int16_t>::min(), + if (!parseSignedInteger(obj.value_, std::numeric_limits<int16_t>::min(), std::numeric_limits<int16_t>::max(), &value)) return std::nullopt; @@ -227,14 +231,15 @@ std::optional<int16_t> YamlObject::get() const } template<> -std::optional<uint16_t> YamlObject::get() const +std::optional<uint16_t> +YamlObject::Getter<uint16_t>::get(const YamlObject &obj) const { - if (type_ != Type::Value) + if (obj.type_ != Type::Value) return std::nullopt; unsigned long value; - if (!parseUnsignedInteger(value_, std::numeric_limits<uint16_t>::max(), + if (!parseUnsignedInteger(obj.value_, std::numeric_limits<uint16_t>::max(), &value)) return std::nullopt; @@ -242,14 +247,15 @@ std::optional<uint16_t> YamlObject::get() const } template<> -std::optional<int32_t> YamlObject::get() const +std::optional<int32_t> +YamlObject::Getter<int32_t>::get(const YamlObject &obj) const { - if (type_ != Type::Value) + if (obj.type_ != Type::Value) return std::nullopt; long value; - if (!parseSignedInteger(value_, std::numeric_limits<int32_t>::min(), + if (!parseSignedInteger(obj.value_, std::numeric_limits<int32_t>::min(), std::numeric_limits<int32_t>::max(), &value)) return std::nullopt; @@ -257,14 +263,15 @@ std::optional<int32_t> YamlObject::get() const } template<> -std::optional<uint32_t> YamlObject::get() const +std::optional<uint32_t> +YamlObject::Getter<uint32_t>::get(const YamlObject &obj) const { - if (type_ != Type::Value) + if (obj.type_ != Type::Value) return std::nullopt; unsigned long value; - if (!parseUnsignedInteger(value_, std::numeric_limits<uint32_t>::max(), + if (!parseUnsignedInteger(obj.value_, std::numeric_limits<uint32_t>::max(), &value)) return std::nullopt; @@ -272,18 +279,19 @@ std::optional<uint32_t> YamlObject::get() const } template<> -std::optional<double> YamlObject::get() const +std::optional<double> +YamlObject::Getter<double>::get(const YamlObject &obj) const { - if (type_ != Type::Value) + if (obj.type_ != Type::Value) return std::nullopt; - if (value_ == "") + if (obj.value_ == "") return std::nullopt; char *end; errno = 0; - double value = utils::strtod(value_.c_str(), &end); + double value = utils::strtod(obj.value_.c_str(), &end); if ('\0' != *end || errno == ERANGE) return std::nullopt; @@ -292,28 +300,30 @@ std::optional<double> YamlObject::get() const } template<> -std::optional<std::string> YamlObject::get() const +std::optional<std::string> +YamlObject::Getter<std::string>::get(const YamlObject &obj) const { - if (type_ != Type::Value) + if (obj.type_ != Type::Value) return std::nullopt; - return value_; + return obj.value_; } template<> -std::optional<Size> YamlObject::get() const +std::optional<Size> +YamlObject::Getter<Size>::get(const YamlObject &obj) const { - if (type_ != Type::List) + if (obj.type_ != Type::List) return std::nullopt; - if (list_.size() != 2) + if (obj.list_.size() != 2) return std::nullopt; - auto width = list_[0].value->get<uint32_t>(); + auto width = obj.list_[0].value->get<uint32_t>(); if (!width) return std::nullopt; - auto height = list_[1].value->get<uint32_t>(); + auto height = obj.list_[1].value->get<uint32_t>(); if (!height) return std::nullopt; |