Add linter and fix issues

Signed-off-by: Slendi <slendi@socopon.com>

src/Math.cppm

@@ -1,51 +1,54 @@
 module;
 
-import std;
-
 export module LunarWM.Math;
 
-export namespace LunarWM {
-namespace Math {
+import std;
+
+export namespace LunarWM::Math {
 
 template<typename T = float>
 requires std::is_arithmetic_v<T> struct Vec2 {
 	template<typename U = T>
-	requires std::is_arithmetic_v<U> Vec2<U> operator+(Vec2<U> const &other)
+	requires std::is_arithmetic_v<U>
+	auto operator+(Vec2<U> const &other) -> Vec2<U>
 	{
 		return { x + other.x, y + other.y };
 	}
 	template<typename U = T>
-	requires std::is_arithmetic_v<U> Vec2<U> operator-(Vec2<U> const &other)
+	requires std::is_arithmetic_v<U>
+	auto operator-(Vec2<U> const &other) -> Vec2<U>
 	{
 		return { x - other.x, y - other.y };
 	}
 	template<typename U = T>
-	requires std::is_arithmetic_v<U> Vec2<U> operator*(Vec2<U> const &other)
+	requires std::is_arithmetic_v<U>
+	auto operator*(Vec2<U> const &other) -> Vec2<U>
 	{
 		return { x * other.x, y * other.x };
 	}
 	template<typename U = T>
-	requires std::is_arithmetic_v<U> Vec2<U> operator*(T scalar)
+	requires std::is_arithmetic_v<U> auto operator*(T scalar) -> Vec2<U>
 	{
 		return { x * scalar, y * scalar };
 	}
 	template<typename U = T>
-	requires std::is_arithmetic_v<U> Vec2<U> operator/(T scalar)
+	requires std::is_arithmetic_v<U> auto operator/(T scalar) -> Vec2<U>
 	{
 		return { x / scalar, y / scalar };
 	}
 	template<typename U = T>
-	requires std::is_arithmetic_v<U> Vec2 operator-()
+	requires std::is_arithmetic_v<U> auto operator-() -> Vec2
 	{
 		return { -x, -y };
 	}
-	T length() const { return std::sqrt(x * x + y * y); }
-	T lengthSquared() const { return x * x + y * y; }
-	Vec2<T> normalized() const
+	auto length() const -> T { return std::sqrt(x * x + y * y); }
+	auto lengthSquared() const -> T { return x * x + y * y; }
+	auto normalized() const -> Vec2<T>
 	{
 		T len = length();
-		if (len == T(0))
+		if (len == T(0)) {
 			return { T(0), T(0) };
+		}
 		return *this / len;
 	}
 
@@ -53,7 +56,8 @@ requires std::is_arithmetic_v<T> struct Vec2 {
 };
 
 template<typename T>
-requires std::is_arithmetic_v<T> Vec2<T> operator*(T scalar, Vec2<T> const &v)
+requires std::is_arithmetic_v<T>
+auto operator*(T scalar, Vec2<T> const &v) -> Vec2<T>
 {
 	return { v.x * scalar, v.y * scalar };
 }
@@ -71,23 +75,23 @@ requires std::is_arithmetic_v<T> struct Rect {
 	{
 	}
 
-	T &x() { return pos.x; }
-	T &y() { return pos.y; }
-	T &w() { return size.x; }
-	T &h() { return size.y; }
+	auto x() -> T & { return pos.x; }
+	auto y() -> T & { return pos.y; }
+	auto w() -> T & { return size.x; }
+	auto h() -> T & { return size.y; }
 
-	T x() const { return pos.x; }
-	T y() const { return pos.y; }
-	T w() const { return size.x; }
-	T h() const { return size.y; }
+	auto x() const -> T { return pos.x; }
+	auto y() const -> T { return pos.y; }
+	auto w() const -> T { return size.x; }
+	auto h() const -> T { return size.y; }
 
-	T left() const { return x(); }
-	T right() const { return x() + w(); }
-	T top() const { return y(); }
-	T bottom() const { return y() + h(); }
+	auto left() const -> T { return x(); }
+	auto right() const -> T { return x() + w(); }
+	auto top() const -> T { return y(); }
+	auto bottom() const -> T { return y() + h(); }
 
-	T &left() { return x(); }
-	T &top() { return y(); }
+	auto left() -> T & { return x(); }
+	auto top() -> T & { return y(); }
 
 	Vec2<T> pos, size;
 };
@@ -95,57 +99,63 @@ requires std::is_arithmetic_v<T> struct Rect {
 template<typename T = float>
 requires std::is_arithmetic_v<T> struct Box {
 	template<typename U = int>
-	requires std::is_arithmetic_v<U> Vec2<T> &operator[](U const index)
+	requires std::is_arithmetic_v<U> auto operator[](U const index) -> Vec2<T> &
 	{
-		if (index < 0 || index > 1)
+		if (index < 0 || index > 1) {
 			throw std::out_of_range("A box only has two points");
+		}
 		return m_data[index];
 	}
-	Vec2<T> &first() { return m_data[0]; }
-	Vec2<T> &second() { return m_data[1]; }
-	T &x0() { return m_data[0].x; }
-	T &y0() { return m_data[0].y; }
-	T &x1() { return m_data[1].x; }
-	T &y1() { return m_data[1].y; }
-	T &left()
+	auto first() -> Vec2<T> & { return m_data[0]; }
+	auto second() -> Vec2<T> & { return m_data[1]; }
+	auto x0() -> T & { return m_data[0].x; }
+	auto y0() -> T & { return m_data[0].y; }
+	auto x1() -> T & { return m_data[1].x; }
+	auto y1() -> T & { return m_data[1].y; }
+	auto left() -> T &
 	{
-		if (x0() < x1())
+		if (x0() < x1()) {
 			return x0();
+		}
 		return x1();
 	}
-	T &right()
+	auto right() -> T &
 	{
-		if (x0() > x1())
+		if (x0() > x1()) {
 			return x0();
+		}
 		return x1();
 	}
-	T &top()
+	auto top() -> T &
 	{
-		if (y0() < y1())
+		if (y0() < y1()) {
 			return y0();
+		}
 		return y1();
 	}
-	T &bottom()
+	auto bottom() -> T &
 	{
-		if (y0() > y1())
+		if (y0() > y1()) {
 			return y0();
+		}
 		return y1();
 	}
 
-	Box() { }
-	Box(Rect<T> rect)
+	Box() = default;
+	explicit Box(Rect<T> rect)
 	{
 		this->m_data[0] = rect.pos;
 		this->m_data[1] = rect.pos + rect.size;
 	}
 
 private:
-	Vec2<T> m_data[2] = {};
+	std::array<Vec2<T>, 2> m_data = {};
 };
 
 template<typename T = int>
-requires std::is_arithmetic_v<T> std::vector<Math::Rect<T>> subtract_rect(
-    Math::Rect<T> const &src, Math::Rect<T> const &clip)
+requires std::is_arithmetic_v<T>
+auto subtract_rect(Math::Rect<T> const &src, Math::Rect<T> const &clip)
+    -> std::vector<Math::Rect<T>>
 {
 	std::vector<Math::Rect<T>> result;
 
@@ -208,5 +218,4 @@ requires std::is_arithmetic_v<T> struct Viewport {
 	Vec2<T> depth_limits;
 };
 
-} // namespace Math
-} // namespace LunarWM
+} // namespace LunarWM::Math