interface Int(); class t1; integer a[string]; //REQ-EXT-10007 function new; //class constructor body need be modified according to REQ-EXT-10007 a = '{"a":40, "b":60, "c":80}'; endfunction endclass class t2; integer b[string]; //REQ-EXT-10007 function new; //class constructor body need be modified according to REQ-EXT-10007 b = '{"aa":44, "bb":66,"cc":88}'; endfunction endclass t1 inst1 = new; //REQ-EXT-10501 t2 inst2 = new; //REQ-EXT-10501 endinterface module top; Int in(); virtual Int testint = in; associative array[string] array; initial begin #1; array = testint.inst1.a; $display("testint.inst1.a = %p", testint.inst1.a); //CHECK-001:'{"a":40, "b":60, "c":80} $display("array = %p", array); //CHECK-002:'{"a":40, "b":60, "c":80} #2; array = testint.inst2.b; $display("testint.inst2.b = %p", testint.inst2.b); //CHECK-003:'{"aa":44, "bb":66,"cc":88} $display("array = %p", array); //CHECK-004:'{"aa":44, "bb":66,"cc":88} end endmodule this piece of system verilog code, when compiled by vcs, will report syntax error:38: token is 'array', how should I fix this syntax error? thanks a lot

The syntax error is caused by the use of reserved keyword "array" as a variable name. To fix this error, you can rename the variable "array" to something else, such as "my_array". Here's an updated version of the code:

interface Int();
  class t1;
    integer a[string];  //REQ-EXT-10007
    function new;  //class constructor body need be modified according to REQ-EXT-10007
      a = '{"a":40, "b":60, "c":80}';
    endfunction
  endclass
  class t2;
    integer b[string];  //REQ-EXT-10007
    function new;  //class constructor body need be modified according to REQ-EXT-10007
      b = '{"aa":44, "bb":66,"cc":88}';
    endfunction
  endclass
  t1 inst1 = new; //REQ-EXT-10501
  t2 inst2 = new;  //REQ-EXT-10501
endinterface

module top;
  Int in();
  virtual Int testint = in;
  associative my_array[string]; // Renamed variable "array" to "my_array"
  initial begin
    #1;
    my_array = testint.inst1.a;
    $display("testint.inst1.a = %p", testint.inst1.a); //CHECK-001:'{"a":40, "b":60, "c":80}
    $display("my_array = %p", my_array); //CHECK-002:'{"a":40, "b":60, "c":80}
    #2;
    my_array = testint.inst2.b;
    $display("testint.inst2.b = %p", testint.inst2.b); //CHECK-003:'{"aa":44, "bb":66,"cc":88}
    $display("my_array = %p", my_array); //CHECK-004:'{"aa":44, "bb":66,"cc":88}
  end
endmodule