llvmir some opt

frontend/ast/block/ForStmt.java

@@ -0,0 +1,57 @@
+package frontend.ast.block;
+
+import frontend.ast.SyntaxType;
+import frontend.ast.token.TokenNode;
+import frontend.lexer.TokenStream;
+import frontend.lexer.TokenType;
+import frontend.ast.Node;
+import frontend.ast.exp.Exp;
+import frontend.ast.exp.LVal;
+
+import java.util.ArrayList;
+
+import error.Errors;
+
+public class ForStmt extends Node {
+    public ForStmt(TokenStream ts) {
+        super(SyntaxType.FOR_STMT, ts);
+    }
+
+    public void parse(Errors errors) {
+        handleAssign(errors);
+        while (getCurrToken().getType() == TokenType.COMMA) {
+            addChild(new TokenNode(ts)); // comma
+            handleAssign(errors);
+        }
+    }
+
+    public void handleAssign(Errors errors) {
+        LVal lval = new LVal(this.ts);
+        lval.parse(errors);
+        addChild(lval);
+        addChild(new TokenNode(ts)); // assign
+        Exp exp = new Exp(this.ts);
+        exp.parse(errors);
+        addChild(exp);
+    }
+
+    public ArrayList<LVal> getLValList() {
+        ArrayList<LVal> lvalList = new ArrayList<>();
+        for (int i = 0; i < getChildren().size(); i++) {
+            if (getChild(i) instanceof LVal) {
+                lvalList.add((LVal) getChild(i));
+            }
+        }
+        return lvalList;
+    }
+
+    public ArrayList<Exp> getExpList() {
+        ArrayList<Exp> expList = new ArrayList<>();
+        for (int i = 0; i < getChildren().size(); i++) {
+            if (getChild(i) instanceof Exp) {
+                expList.add((Exp) getChild(i));
+            }
+        }
+        return expList;
+    }
+}