Problem with usage of create_object

[suleesh]

Hi,

I has a testbench based on OVM2.0 . i am connverting it to UVM now. I am having a problem with create_object() function.

My OVM code is like the following

class MBfm_seq_item extends ovm_sequence_item;

`ovm_object_utils (MBfm_seq_item)

MasterTransaction dataTransObj;

function new (string name = "MBfm_seq_item");

super.new(name);

$cast(dataTransObj, ovm_factory::create_object("MasterTransaction","dataTransObj"));

endfunction: new

endclass: MBfm_seq_item

Here, MasterTransaction is extended from ovm_transcatiom

I converted it to UVM code as follows

class MBfm_seq_item extends uvm_sequence_item;

`uvm_object_utils (MBfm_seq_item)

MasterTransaction dataTransObj;

function new (string name = "MBfm_seq_item");

super.new(name);

$cast(dataTransObj, uvm_factory::create_object("MasterTransaction","dataTransObj"));

endfunction: new

endclass: MBfm_seq_item

Then its giving the error "Failed to find name 'create_object' in specified scope" for the line $cast(dataTransObj, uvm_factory::create_object("MasterTransaction","dataTransObj"));

I tried with the following too

$cast(dataTransObj,create_object("MasterTransaction","dataTransObj"));

Then its giving an error "Dotted name ('create_object') not found in current scope. Note that hierarchical references are not allowed from within a package or $unit.'

Can somebody help me to solve this problem?

Thanks

Suleesh

Edited August 1, 2011 by suleesh

[cgales]

The ovm_factory::create_object() method was deprecated in OVM 2.0.1, and removed in the UVM release. I would recommend transitioning first to OVM 2.1.1 to ensure that you are using the latest OVM methodologies, and then use the OVM-UVM conversion script to migrate to UVM. While it may not work perfectly, it might help in identifying the deprecated features.

[nndad]

Just use the factory function

class_type::type_id::create("object_name")

[uwes]

its much better to use the type based factory api instead of the string based one (you get compile time checking for instance)

sometype somefield;

somefield = sometype::type_id::create("somelogicalname");