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-rwxr-xr-xutils/gen-controls.py31
1 files changed, 25 insertions, 6 deletions
diff --git a/utils/gen-controls.py b/utils/gen-controls.py
index d6b4e300..1075ae30 100755
--- a/utils/gen-controls.py
+++ b/utils/gen-controls.py
@@ -39,11 +39,33 @@ class Control(object):
self.__name = name
self.__data = data
self.__enum_values = None
+ self.__size = None
enum_values = data.get('enum')
if enum_values is not None:
self.__enum_values = [ControlEnum(enum) for enum in enum_values]
+ size = self.__data.get('size')
+ if size is not None:
+ if len(size) == 0:
+ raise RuntimeError(f'Control `{self.__name}` size must have at least one dimension')
+
+ # Compute the total number of elements in the array. If any of the
+ # array dimension is a string, the array is variable-sized.
+ num_elems = 1
+ for dim in size:
+ if type(dim) is str:
+ num_elems = 0
+ break
+
+ dim = int(dim)
+ if dim <= 0:
+ raise RuntimeError(f'Control `{self.__name}` size must have positive values only')
+
+ num_elems *= dim
+
+ self.__size = num_elems
+
@property
def description(self):
"""The control description"""
@@ -86,15 +108,12 @@ class Control(object):
if typ == 'string':
return 'std::string'
- if size is None:
+ if self.__size is None:
return typ
- if len(size) > 0:
- # fixed-sized Span
- span_size = reduce(operator.mul, size)
- return f"Span<const {typ}, {span_size}>"
+ if self.__size:
+ return f"Span<const {typ}, {self.__size}>"
else:
- # variable-sized Span
return f"Span<const {typ}>"