[core] Abort on semantic errors

pmd-core/src/main/java/net/sourceforge/pmd/lang/ast/SemanticErrorReporter.java

@@ -17,6 +17,18 @@ public interface SemanticErrorReporter {
     // TODO use resource bundle keys instead of string messages.
 
 
+    /**
+     * Report an informational message at the given location.
+     *
+     * @param location   Location where the message should be reported
+     * @param message    Message (rendered using a {@link MessageFormat})
+     * @param formatArgs Format arguments
+     */
+    default void info(Node location, String message, Object... formatArgs) {
+        // noop
+    }
+
+
     /**
      * Report a warning at the given location. Warnings do not abort
      * the analysis.
@@ -87,6 +99,11 @@ public interface SemanticErrorReporter {
                 return fullMessage;
             }
 
+            @Override
+            public void info(Node location, String message, Object... formatArgs) {
+                logMessage(Level.INFO, location, message, formatArgs);
+            }
+
             @Override
             public void warning(Node location, String message, Object... args) {
                 logMessage(Level.WARN, location, message, args);

pmd-core/src/main/java/net/sourceforge/pmd/processor/PmdRunnable.java

@@ -125,11 +125,12 @@ abstract class PmdRunnable implements Runnable {
                                LanguageVersion languageVersion,
                                String filename) throws FileAnalysisException {
 
+        SemanticErrorReporter reporter = SemanticErrorReporter.reportToLogger(LOGGER);
         ParserTask task = new ParserTask(
             languageVersion,
             filename,
             sourceCode,
-            SemanticErrorReporter.reportToLogger(LOGGER),
+            reporter,
             configuration.getClassLoader()
         );
 
@@ -143,6 +144,11 @@ abstract class PmdRunnable implements Runnable {
 
         RootNode rootNode = parse(parser, task);
 
+        if (reporter.hasError()) {
+            reporter.info(rootNode, "Errors occurred in file, skipping rule analysis");
+            return;
+        }
+
         ruleSets.apply(rootNode, listener);
     }