llvmir some opt

frontend/ast/exp/UnaryOp.java

@@ -0,0 +1,17 @@
+package frontend.ast.exp;
+
+import frontend.ast.Node;
+import frontend.ast.SyntaxType;
+import frontend.lexer.TokenStream;
+import error.Errors;
+import frontend.ast.token.TokenNode;
+
+public class UnaryOp extends Node {
+    public UnaryOp(TokenStream ts) {
+        super(SyntaxType.UNARY_OP, ts);
+    }
+    
+    public void parse(Errors errors) {
+        addChild(new TokenNode(ts)); // unary op
+    }
+}