llvmir some opt

frontend/ast/exp/PrimaryExp.java

@@ -0,0 +1,58 @@
+package frontend.ast.exp;
+
+import frontend.ast.Node;
+import frontend.ast.SyntaxType;
+import frontend.lexer.TokenStream;
+import frontend.lexer.TokenType;
+import frontend.ast.token.TokenNode;
+import error.Errors;
+import error.Error;
+import error.ErrorType;
+
+public class PrimaryExp extends Node {
+    public PrimaryExp(TokenStream ts) {
+        super(SyntaxType.PRIMARY_EXP, ts);
+    }
+
+    public void parse(Errors errors) {
+        if (getCurrToken().getType() == TokenType.LPARENT) {
+            addChild(new TokenNode(ts)); // lparent
+            Exp exp = new Exp(this.ts);
+            exp.parse(errors);
+            addChild(exp);
+            if (getCurrToken().getType() == TokenType.RPARENT) {
+                addChild(new TokenNode(ts)); // rparent
+            } else {
+                errors.addError(new Error(this.ts.peek(-1).getLine(), ErrorType.j));
+            }
+        } else if (getCurrToken().getType() == TokenType.IDENFR) {
+            LVal lval = new LVal(this.ts);
+            lval.parse(errors);
+            addChild(lval);
+        } else {
+            NumberExp num = new NumberExp(this.ts);
+            num.parse(errors);
+            addChild(num);
+        }
+    }
+
+    public int getType() {
+        if (getChild(0) instanceof TokenNode) {
+            return ((Exp) getChild(1)).getType();
+        } else if (getChild(0) instanceof LVal) {
+            return ((LVal) getChild(0)).getType();
+        } else {
+            return 0;
+        }
+    }
+
+    public int getValue() {
+        if (getChild(0) instanceof TokenNode) {
+            return ((Exp) getChild(1)).getValue();
+        } else if (getChild(0) instanceof LVal) {
+            return ((LVal) getChild(0)).getValue();
+        } else {
+            return ((NumberExp) getChild(0)).getValue();
+        }
+    }
+}