Split expressions into separate files

src/Parser/Expression/ExpressionBinary.h

@@ -0,0 +1,29 @@
+#include "Parser/Expression/Expression.h"
+
+enum class ExpressionBinaryOperation {
+    EQUAL,
+    NOT_EQUAL,
+    LESS,
+    LESS_EQUAL,
+    GREATER,
+    GREATER_EQUAL,
+    ADD,
+    SUB,
+    MUL,
+    DIV,
+    MOD
+};
+
+class ExpressionBinary: public Expression {
+private:
+    ExpressionBinaryOperation operation;
+    shared_ptr<Expression> left;
+    shared_ptr<Expression> right;
+
+public:
+    ExpressionBinary(shared_ptr<Token> token, shared_ptr<Expression> left, shared_ptr<Expression> right);
+    ExpressionBinaryOperation getOperation();
+    shared_ptr<Expression> getLeft();
+    shared_ptr<Expression> getRight();
+    string toString(int indent) override;
+};