GlueGen: Add 'PascalString' string semantics (length + value-ptr), added prelim code for JavaCallback use-case emitBodyMapCToJNIType()

It is common in toolkit APIs that a string might not be passed as a 'nul' terminated (EOS) C string,
but as a Pascal string with a given length argument.

A C string is specied as
  ArgumentIsString alEventCallbackInject 3
while allowing multiple indices ..

A Pascal string can be specified as
  ArgumentIsPascalString ALEVENTPROCSOFT 3 4
while allowing multiple indice-tuples for length and value ..

The tuple consist of the length agrument-index first (usually an int)
followed by the value argument-index (usually a 'char*').

+++

CMethodBindingEmitter.emitBodyMapCToJNIType(), where PascalString is implemented,
is currently being used for
- JNI return statement (no PascalString impact possible)
- JavaCallback C type -> JNI type, PascalString impacting

1 files changed, 1 insertions, 1 deletions

diff --git a/src/junit/com/jogamp/gluegen/test/junit/generation/test2.cfg b/src/junit/com/jogamp/gluegen/test/junit/generation/test2.cfg
index 83045cb..08194e6 100644
--- a/src/junit/com/jogamp/gluegen/test/junit/generation/test2.cfg
+++ b/src/junit/com/jogamp/gluegen/test/junit/generation/test2.cfg
@@ -76,7 +76,7 @@ JavaCallbackDef  MessageCallback01 T2_CallbackFunc01 2
 # typedef void ( * ALEVENTPROCSOFT)(int eventType, int object, int param, int length, const char *message, void *userParam);
 # void alEventCallback(ALEVENTPROCSOFT callback, void *userParam /* identity-key */);
 # void alEventCallbackInject(int eventType, int object, int param, const char* msg);
-ArgumentIsString ALEVENTPROCSOFT 4
+ArgumentIsPascalString ALEVENTPROCSOFT 3 4
 ArgumentIsString alEventCallbackInject 3
 
 # Define a JavaCallback (OpenAL AL_SOFT_events)