Commit: fe094eaf20d13ea0fb0a2d715e75a65808308223 Author: Lukas Tönne Date: Mon Mar 10 12:22:47 2014 +0100 https://developer.blender.org/rBfe094eaf20d13ea0fb0a2d715e75a65808308223
Cleanup for RNA_path_resolve_full.
* Moved collection key parsing and array index parsing into their own
functions, to make the main path loop easier to follow.
* Unified boolean return values.
===================================================================
M source/blender/makesrna/intern/rna_access.c
===================================================================
diff --git a/source/blender/makesrna/intern/rna_access.c
b/source/blender/makesrna/intern/rna_access.c
index 86ef2f1..7311c46 100644
--- a/source/blender/makesrna/intern/rna_access.c
+++ b/source/blender/makesrna/intern/rna_access.c
@@ -3902,6 +3902,145 @@ bool RNA_path_resolve(PointerRNA *ptr, const char
*path, PointerRNA *r_ptr, Prop
return RNA_path_resolve_full(ptr, path, r_ptr, r_prop, NULL);
}
+static bool path_resolve_collection_key(const char **path, PointerRNA *ptr,
PropertyRNA *prop, PointerRNA *r_nextptr)
+{
+ char fixedbuf[256], *token;
+ int intkey;
+
+ /* end of path, ok */
+ if (!(**path))
+ return true;
+
+ if (**path == '[') {
+ /* resolve the lookup with [] brackets */
+ token = rna_path_token(path, fixedbuf, sizeof(fixedbuf), 1);
+
+ if (!token)
+ return false;
+
+ /* check for "" to see if it is a string */
+ if (rna_token_strip_quotes(token)) {
+ if (RNA_property_collection_lookup_string(ptr, prop,
token + 1, r_nextptr)) {
+ /* pass */
+ }
+ else {
+ r_nextptr->data = NULL;
+ }
+ }
+ else {
+ /* otherwise do int lookup */
+ intkey = atoi(token);
+ if (intkey == 0 && (token[0] != '0' || token[1] !=
'\0')) {
+ return false; /* we can be sure the fixedbuf
was used in this case */
+ }
+ if (RNA_property_collection_lookup_int(ptr, prop,
intkey, r_nextptr)) {
+ /* pass */
+ }
+ else {
+ r_nextptr->data = NULL;
+ }
+ }
+
+ if (token != fixedbuf) {
+ MEM_freeN(token);
+ }
+ }
+ else {
+ if (RNA_property_collection_type_get(ptr, prop, r_nextptr)) {
+ /* pass */
+ }
+ else {
+ /* ensure we quit on invalid values */
+ r_nextptr->data = NULL;
+ }
+ }
+
+ return r_nextptr->data != NULL;
+}
+
+static bool path_resolve_array_index(const char **path, PointerRNA *ptr,
PropertyRNA *prop, int *r_index)
+{
+ char fixedbuf[256], *token;
+ int index_arr[RNA_MAX_ARRAY_DIMENSION] = {0};
+ int len[RNA_MAX_ARRAY_DIMENSION];
+ const int dim = RNA_property_array_dimension(ptr, prop, len);
+ int i;
+
+ *r_index = -1;
+
+ /* end of path, ok */
+ if (!(**path))
+ return true;
+
+ for (i = 0; i < dim; i++) {
+ int temp_index = -1;
+
+ /* multi index resolve */
+ if (**path == '[') {
+ token = rna_path_token(path, fixedbuf,
sizeof(fixedbuf), 1);
+
+ if (token == NULL) {
+ /* invalid syntax blah[] */
+ return false;
+ }
+ /* check for "" to see if it is a string */
+ else if (rna_token_strip_quotes(token)) {
+ temp_index =
RNA_property_array_item_index(prop, *(token + 1));
+ }
+ else {
+ /* otherwise do int lookup */
+ temp_index = atoi(token);
+
+ if (temp_index == 0 && (token[0] != '0' ||
token[1] != '\0')) {
+ if (token != fixedbuf) {
+ MEM_freeN(token);
+ }
+
+ return false;
+ }
+ }
+ }
+ else if (dim == 1) {
+ /* location.x || scale.X, single dimension arrays only
*/
+ token = rna_path_token(path, fixedbuf,
sizeof(fixedbuf), 0);
+ if (token == NULL) {
+ /* invalid syntax blah.. */
+ return false;
+ }
+ temp_index = RNA_property_array_item_index(prop,
*token);
+ }
+
+ if (token != fixedbuf) {
+ MEM_freeN(token);
+ }
+
+ /* out of range */
+ if (temp_index < 0 || temp_index >= len[i])
+ return false;
+
+ index_arr[i] = temp_index;
+ /* end multi index resolve */
+ }
+
+ /* arrays always contain numbers so further values are not valid */
+ if (**path)
+ return false;
+
+ /* flatten index over all dimensions */
+ {
+ int totdim = 1;
+ int flat_index = 0;
+
+ for (i = dim - 1; i >= 0; i--) {
+ flat_index += index_arr[i] * totdim;
+ totdim *= len[i];
+ }
+
+ *r_index = flat_index;
+ }
+ return true;
+}
+
/* Resolve the given RNA Path to find the pointer and/or property + array
index indicated by fully resolving the path
* ! Assumes all pointers provided are valid
* > returns: True if path can be resolved to a valid "pointer + property" OR
"pointer only"
@@ -3912,13 +4051,13 @@ bool RNA_path_resolve_full(PointerRNA *ptr, const char
*path, PointerRNA *r_ptr,
PointerRNA curptr;
PointerRNA nextptr; /* keep uninitialized, helps expose bugs in
collection accessor functions */
char fixedbuf[256], *token;
- int type, intkey;
+ int type;
prop = NULL;
curptr = *ptr;
if (path == NULL || *path == '\0')
- return 0;
+ return false;
while (*path) {
int use_id_prop = (*path == '[') ? 1 : 0;
@@ -3930,7 +4069,7 @@ bool RNA_path_resolve_full(PointerRNA *ptr, const char
*path, PointerRNA *r_ptr,
token = rna_path_token(&path, fixedbuf, sizeof(fixedbuf),
use_id_prop);
if (!token)
- return 0;
+ return false;
if (use_id_prop) { /* look up property name in current struct */
IDProperty *group = RNA_struct_idprops(&curptr, 0);
@@ -3945,7 +4084,7 @@ bool RNA_path_resolve_full(PointerRNA *ptr, const char
*path, PointerRNA *r_ptr,
MEM_freeN(token);
if (!prop)
- return 0;
+ return false;
type = RNA_property_type(prop);
@@ -3955,159 +4094,34 @@ bool RNA_path_resolve_full(PointerRNA *ptr, const char
*path, PointerRNA *r_ptr,
switch (type) {
case PROP_POINTER:
nextptr = RNA_property_pointer_get(&curptr,
prop);
-
- if (nextptr.data) {
- curptr = nextptr;
- prop = NULL; /* now we have a
PointerRNA, the prop is our parent so forget it */
- if (index) *index = -1;
- }
- else
- return 0;
-
+ if (nextptr.data == NULL)
+ return false;
+
+ curptr = nextptr;
+ prop = NULL; /* now we have a PointerRNA, the
prop is our parent so forget it */
+ if (index) *index = -1;
break;
case PROP_COLLECTION:
- if (*path) {
- if (*path == '[') {
- /* resolve the lookup with []
brackets */
- token = rna_path_token(&path,
fixedbuf, sizeof(fixedbuf), 1);
-
- if (!token)
- return 0;
-
- /* check for "" to see if it is
a string */
- if
(rna_token_strip_quotes(token)) {
- if
(RNA_property_collection_lookup_string(&curptr, prop, token + 1, &nextptr)) {
- /* pass */
- }
- else {
- nextptr.data =
NULL;
- }
- }
- else {
- /* otherwise do int
lookup */
- intkey = atoi(token);
- if (intkey == 0 &&
(token[0] != '0' || token[1] != '\0')) {
- return 0; /* we
can be sure the fixedbuf was used in this case */
- }
- if
(RNA_property_collection_lookup_int(&curptr, prop, intkey, &nextptr)) {
- /* pass */
- }
- else {
- nextptr.data =
NULL;
- }
- }
-
- if (token != fixedbuf) {
- MEM_freeN(token);
- }
- }
- else {
- PointerRNA c_ptr;
-
- if
(RNA_property_collection_type_get(&curptr, prop, &c_ptr)) {
- nextptr = c_ptr;
- }
- else {
- /* ensure we quit on
invalid values */
- nextptr.data = NULL;
- }
- }
-
- if (nextptr.data) {
- curptr = nextptr;
- prop = NULL; /* now we have a
PointerRNA, the prop is our parent so forget it */
- if (index) *index = -1;
- }
- else
- return 0;
- }
-
+ if (!path_resolve_collection_key(&path,
&curptr, prop, &nextptr))
+ return false;
+
+ curptr = nextptr;
+ prop = NULL; /* now we have a PointerRNA, the
prop is our parent so forget it */
+ if (index) *index = -1;
break;
default:
- if (index == NULL)
- break;
-
- *index = -1;
-
- if (*path) {
- int index_arr[RNA_MAX_ARRAY_DIMENSION]
= {0};
- int len[RNA_MAX_ARRAY_DIMENSION];
- const int dim =
RNA_property_array_dimension(&curptr, prop, len);
- int i, temp_index;
-
- for (i = 0; i < dim; i++) {
- temp_index = -1;
-
- /* multi index resolve */
- if (*path == '[') {
- token =
rna_path_token(&path, fixedbuf, sizeof(fixedbuf), 1);
-
- if (token == NULL) {
- /* invalid
syntax blah[] */
- return 0;
- }
- /* check for "" to see
if it is a string */
- else if
(rna_token_strip_quotes(token)) {
- temp_index =
RNA_property_array_item_index(prop, *(token + 1));
- }
- else {
- /* otherwise do
int lookup */
- temp_index =
atoi(token);
-
- if (temp_index
== 0 && (token[0] != '0' || token[1] != '\0')) {
- if
(token != fixedbuf) {
-
MEM_freeN(token);
- }
-
- return
0;
- }
- }
- }
- else if (dim == 1) {
- /* location.x ||
scale.X, single dimension arrays only */
- token =
rna_path_token(&path, fixedbuf, sizeof(fixedbuf), 0);
- if (token == NULL) {
- /* invalid
syntax blah.. */
- return 0;
- }
- temp_index =
RNA_property_array_item_index(prop, *token);
- }
-
- if (token != fixedbuf) {
- MEM_freeN(token);
- }
-
- /* out of range */
- if (temp_index < 0 ||
temp_index >= len[i])
- return 0;
-
- index_arr[i] = temp_index;
- /* end multi index resolve */
- }
-
- /* arrays always contain numbers so
further values are not valid */
- if (*path) {
- return 0;
- }
- else {
- int totdim = 1;
- int flat_index = 0;
-
- for (i = dim - 1; i >= 0; i--) {
- flat_index +=
index_arr[i] * totdim;
- totdim *= len[i];
- }
-
- *index = flat_index;
- }
+ if (index) {
+ if (!path_resolve_array_index(&path,
&curptr, prop, index))
+ return false;
}
+ break;
}
}
*r_ptr = curptr;
*r_prop = prop;
- return 1;
+ return true;
}
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