Python part of multidim. array support for RNA complete.

Multidim. arrays can now be modified at any level, for example:

struc.arrayprop = x
struc.arrayprop[i] = x
struc.arrayprop[i][j] = x
struc.arrayprop[i][j][k] = x
etc...

Approriate rvalue type/length checking is done. 

To ensure all works correctly, I wrote automated tests in release/test/rna_array.py.

These tests cover: array/item access, assignment on different levels, tests that proper exceptions are thrown on invalid item access/assignment.

The tests use properties of the RNA Test struct defined in rna_test.c. This struct is only compiled when building with BF_UNIT_TEST=1 scons arg.

Currently unit tests are run manually by loading the script in the Text Editor.
Here's the output I have: http://www.pasteall.org/7644

Things to improve here:
- better exception messages when multidim. array assignment fails. Those we have currently are not very useful for multidim.
- add tests for slice assignment

1 files changed, 6 insertions, 2 deletions

diff --git a/source/blender/makesrna/intern/rna_internal_types.h b/source/blender/makesrna/intern/rna_internal_types.h
index d706fd5ac19..2bd89dbd3bf 100644
--- a/source/blender/makesrna/intern/rna_internal_types.h
+++ b/source/blender/makesrna/intern/rna_internal_types.h
@@ -39,7 +39,12 @@ struct bContext;
 struct IDProperty;
 struct GHash;
 
+#ifdef UNIT_TEST
+#define RNA_MAX_ARRAY 64
+#else
 #define RNA_MAX_ARRAY 32
+#endif
+
 #define RNA_MAX_ARRAY_DIMENSION 3
 
 /* Function Callbacks */
@@ -134,11 +139,10 @@ struct PropertyRNA {
 	PropertySubType subtype;
 	/* if an array this is > 0, specifying the length */
 	unsigned int arraylength;
-	/* these, if non-NULL, override arraylength */
+	/* if non-NULL, overrides arraylength. Must not return 0? */
 	PropArrayLengthGetFunc getlength;
 	/* if NULL, length cannot be changed by a user */
 	PropArrayLengthSetFunc setlength;
-	/* used only for dynamic arrays for now, default 1 */
 	unsigned short arraydimension;
 	/* dimension sizes for dimensions greater than 1, first dimension size is not specified */
 	unsigned short dimsize[RNA_MAX_ARRAY_DIMENSION - 1];