llvmir some opt

frontend/ast/decl/VarDecl.java

@@ -0,0 +1,59 @@
+package frontend.ast.decl;
+
+import error.ErrorType;
+import error.Errors;
+
+import java.util.ArrayList;
+
+import error.Error;
+import frontend.ast.Node;
+import frontend.ast.SyntaxType;
+import frontend.ast.token.TokenNode;
+import frontend.lexer.TokenStream;
+import frontend.lexer.TokenType;
+
+public class VarDecl extends Node {
+    public VarDecl(TokenStream ts) {
+        super(SyntaxType.VAR_DECL, ts);
+    }
+
+    public void parse(Errors errors) {
+        if (getCurrToken().getType() == TokenType.STATICTK) {
+            TokenNode staitckk = new TokenNode(ts);
+            addChild(staitckk);
+        }
+        TokenNode intkk = new TokenNode(ts);
+        addChild(intkk);
+        while (true) {
+            VarDef vdf = new VarDef(ts);
+            vdf.parse(errors);
+            addChild(vdf);
+            if (getCurrToken().getType() == TokenType.COMMA) {
+                TokenNode comma = new TokenNode(ts);
+                addChild(comma);
+            } else {
+                break;
+            }
+        }
+        if (getCurrToken().getType() == TokenType.SEMICN) {
+            TokenNode semicn = new TokenNode(ts);
+            addChild(semicn);
+        } else {
+            errors.addError(new Error(this.ts.peek(-1).getLine(), ErrorType.i));
+        }
+    }
+
+    public ArrayList<VarDef> GetVarDefs() {
+        ArrayList<VarDef> varDefs = new ArrayList<VarDef>();
+        if (getChild(1) instanceof VarDef) {
+            for (int i = 1; i < getChildren().size(); i += 2) {
+                varDefs.add((VarDef) getChild(i));
+            }
+        } else {
+            for (int i = 2; i < getChildren().size(); i += 2) {
+                varDefs.add((VarDef) getChild(i));
+            }
+        }
+        return varDefs;
+    }
+}