Class uvm_link_base

• uvm_pkg :: uvm_void

  • uvm_pkg :: uvm_object

    • uvm_pkg :: uvm_link_base

Inheritance Diagram of uvm_link_base

The uvm_link_base class presents a simple API for defining a link between any two objects.

Using extensions of this class, a uvm_tr_database can determine the type of links being passed, without relying on "magic" string names.

For example: |

virtual function void do_establish_link(uvm_link_base link);
  uvm_parent_child_link pc_link;
  uvm_cause_effect_link ce_link;

  if ($cast(pc_link, link)) begin
     // Record the parent-child relationship
  end
  else if ($cast(ce_link, link)) begin
     // Record the cause-effect relationship
  end
  else begin
     // Unsupported relationship!
  end
endfunction : do_establish_link

Constructors

function new ( string name )

Constructor

Parameters

name

Instance name

Functions

function void set_lhs ( uvm_object lhs )

Sets the left-hand-side of the link

Triggers the do_set_lhs callback.

function uvm_object get_lhs ( )

Gets the left-hand-side of the link

Triggers the do_get_lhs callback

function void set_rhs ( uvm_object rhs )

Sets the right-hand-side of the link

Triggers the do_set_rhs callback.

function uvm_object get_rhs ( )

Gets the right-hand-side of the link

Triggers the do_get_rhs callback

function void set ( uvm_object lhs, uvm_object rhs )

Convenience method for setting both sides in one call.

Triggers both the do_set_rhs and do_set_lhs callbacks.

virtual function void do_set_lhs ( uvm_object lhs )

Callback for setting the left-hand-side

virtual function uvm_object do_get_lhs ( )

Callback for retrieving the left-hand-side

virtual function void do_set_rhs ( uvm_object rhs )

Callback for setting the right-hand-side

virtual function uvm_object do_get_rhs ( )

Callback for retrieving the right-hand-side

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