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Adding fraction_digits function #86

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Adding fraction_digits function #86

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16 changes: 16 additions & 0 deletions libyang/schema.py
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Original file line number Diff line number Diff line change
Expand Up @@ -611,6 +611,22 @@ def all_ranges(self) -> Iterator[str]:
if rng is not None:
yield rng

def fraction_digits(self) -> Optional[int]:
if not self.cdata_parsed:
return None
if self.cdata.basetype != self.DEC64:
return None
return self.cdata_parsed.fraction_digits

def all_fraction_digits(self) -> Iterator[int]:
if self.cdata.basetype == lib.LY_TYPE_UNION:
for t in self.union_types():
yield from t.all_fraction_digits()
else:
fd = self.fraction_digits()
if fd is not None:
yield fd

STR_TYPES = frozenset((STRING, BINARY, ENUM, IDENT, BITS))

def length(self) -> Optional[str]:
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8 changes: 8 additions & 0 deletions tests/test_schema.py
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Expand Up @@ -474,3 +474,11 @@ def test_leaf_parent(self):
def test_iter_tree(self):
leaf = next(self.ctx.find_path("/yolo-system:conf"))
self.assertEqual(len(list(leaf.iter_tree(full=True))), 23)

def test_leaf_type_fraction_digits(self):
self.ctx.load_module("yolo-nodetypes")
leaf = next(self.ctx.find_path("/yolo-nodetypes:conf/percentage"))
self.assertIsInstance(leaf, SLeaf)
t = leaf.type()
self.assertIsInstance(t, Type)
self.assertEqual(next(t.all_fraction_digits(), None), 2)
32 changes: 32 additions & 0 deletions tests/yang/yolo/yolo-nodetypes.yang
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@@ -0,0 +1,32 @@
module yolo-nodetypes {
yang-version 1.1;
namespace "urn:yang:yolo:nodetypes";
prefix sys;

description
"YOLO Nodetypes.";

revision 2024-01-25 {
description
"Initial version.";
}

container conf {
description
"Configuration.";
leaf percentage {
type decimal64 {
fraction-digits 2;
}
default 10.2;
}

leaf-list ratios {
type decimal64 {
fraction-digits 2;
}
default 2.5;
default 2.6;
}
}
}