path property
Identifies which part of the FileDescriptorProto was defined at this location.
Each element is a field number or an index. They form a path from
the root FileDescriptorProto to the place where the definition occurs.
For example, this path:
4, 3, 2, 7, 1
refers to:
file.message_type(3) // 4, 3
.field(7) // 2, 7
.name() // 1
This is because FileDescriptorProto.message_type has field number 4:
repeated DescriptorProto message_type = 4;
and DescriptorProto.field has field number 2:
repeated FieldDescriptorProto field = 2;
and FieldDescriptorProto.name has field number 1:
optional string name = 1;
Thus, the above path gives the location of a field name. If we removed
the last element:
4, 3, 2, 7
this path refers to the whole field declaration (from the beginning
of the label to the terminating semicolon).
Implementation
@$pb.TagNumber(1)
$core.List<$core.int> get path => $_getList(0);