* Prevent Parser from overwriting target classes when nothing was parsed

Author: saudet

CHANGELOG.md

@@ -1,4 +1,5 @@
 
+ * Prevent `Parser` from overwriting target classes when nothing was parsed
  * Fix `Parser` error on member variables with initializers plus `Info.skip()` ([issue #179](https://github.com/bytedeco/javacpp/issues/179))
  * Fix `Parser` incorrectly recognizing values as pointers when `const` is placed after type ([issue #173](https://github.com/bytedeco/javacpp/issues/173))
  * Add `Parser` support for C++11 `using` declarations that act as `typedef` ([issue #169](https://github.com/bytedeco/javacpp/issues/169))

src/main/java/org/bytedeco/javacpp/tools/Parser.java

@@ -908,7 +908,7 @@ Declarator declarator(Context context, String defaultName, int infoNumber, boole
                     dimCast += "[" + dims[i] + "]";
                 }
             }
-            
+
             if (!dimCast.isEmpty()) {
                 if (dims[0] != -1) {
                     // Annotate with the first dimension's value
@@ -2998,17 +2998,17 @@ public File parse(String outputDirectory, String[] classPath, Class cls) throws
     public File parse(File outputDirectory, String[] classPath, Class cls) throws IOException, ParserException {
         ClassProperties allProperties = Loader.loadProperties(cls, properties, true);
         ClassProperties clsProperties = Loader.loadProperties(cls, properties, false);
-        
+
         // Capture c-includes from "class" and "all" properties
         List<String> cIncludes = new ArrayList<>();
         cIncludes.addAll(clsProperties.get("platform.cinclude"));
         cIncludes.addAll(allProperties.get("platform.cinclude"));
-        
+
         // Capture class includes
         List<String> clsIncludes = new ArrayList<String>();
         clsIncludes.addAll(clsProperties.get("platform.include"));
         clsIncludes.addAll(clsProperties.get("platform.cinclude"));
-        
+
         // Capture all includes
         List<String> allIncludes = new ArrayList<String>();
         allIncludes.addAll(allProperties.get("platform.include"));
@@ -3104,6 +3104,11 @@ public File parse(File outputDirectory, String[] classPath, Class cls) throws IO
             }
         }
 
+        if (declList.size() == 0) {
+            logger.info("Nothing targeted for " + targetFile);
+            return null;
+        }
+
         File targetDir = targetFile.getParentFile();
         if (targetDir != null) {
             targetDir.mkdirs();