llvmir some opt

error/Error.java

@@ -0,0 +1,27 @@
+package error;
+
+public class Error {
+    private int line;
+    private ErrorType type;
+
+    public Error(int line, ErrorType type) {
+        this.line = line;
+        this.type = type;
+    }
+
+    public void printError() {
+        System.out.println(this.line + " " + this.type);
+    }
+
+    public int getLine() {
+        return this.line;
+    }
+
+    public ErrorType getType() {
+        return this.type;
+    }
+
+    public String toString() {
+        return this.line + " " + this.type + "\n";
+    }
+}

error/ErrorType.java

@@ -0,0 +1,17 @@
+package error;
+
+public enum ErrorType {
+    a,
+    b,
+    c,
+    d,
+    e,
+    f,
+    g,
+    h,
+    i,
+    j,
+    k,
+    l,
+    m
+}

error/Errors.java

@@ -0,0 +1,43 @@
+package error;
+
+import java.util.ArrayList;
+
+public class Errors {
+    private ArrayList<Error> errors;
+
+    public Errors() {
+        this.errors = new ArrayList<Error>();
+    }
+
+    public void addError(Error error) {
+        int index = 0;
+        if (this.errors.size() == 0 || 
+            this.errors.get(this.errors.size() - 1).getLine() <= error.getLine()) {
+            this.errors.add(error);
+            return;
+        }
+        if (this.errors.get(0).getLine() > error.getLine()) {
+            this.errors.add(index, error);
+            return;
+        }
+        for (int i = this.errors.size() - 1; i >= 0; i--) {
+            if (this.errors.get(i).getLine() <= error.getLine()) {
+                index = i + 1;
+                break;
+            }
+        }
+        this.errors.add(index, error);
+    }
+
+    public int size() {
+        return this.errors.size();
+    }
+
+    public StringBuilder toStringBuilder() {
+        StringBuilder sb = new StringBuilder();
+        for (Error error : this.errors) {
+            sb.append(error.toString());
+        }
+        return sb;
+    }
+}