init

linter/Check.java

@@ -0,0 +1,11 @@
+import java.util.*;
+
+// A common interface for linters that can check a single line of code
+// Every Check will check for its own type of error on a single line of code.
+public interface Check {
+	// Checks for this Check's error condition on this line with this line number.
+	// If an error exists on this line, returns an Optional with an Error present 
+	// indicating an error occurred. If no errors are present, returns an empty Optional.
+	public Optional<Error> lint(String line, int lineNumber);
+}
+