verilator/test_regress/t/t_assoc.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2019 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

// verilog_format: off
`define stop $stop
`define checkh(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d:  got='h%x exp='h%x\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0);
`define checks(gotv,expv) do if ((gotv) != (expv)) begin $write("%%Error: %s:%0d:  got='%s' exp='%s'\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0);
`define checkp(gotv,expv_s) do begin string gotv_s; gotv_s = $sformatf("%p", gotv); if ((gotv_s) != (expv_s)) begin $write("%%Error: %s:%0d:  got='%s' exp='%s'\n", `__FILE__,`__LINE__, (gotv_s), (expv_s)); `stop; end end while(0);
// verilog_format: on

module t (
    input clk
);

  integer cyc = 0;

  integer i;

  always @(posedge clk) begin
    cyc <= cyc + 1;
    begin
      // Type
      typedef bit [3:0] nibble_t;
      typedef string dict_t[nibble_t];
      dict_t a;
      string b[nibble_t];
      nibble_t k;
      string v;

      a[4'd3] = "fooed";
      a[4'd2] = "bared";
      i = a.num();
      `checkh(i, 2);
      i = a.size;
      `checkh(i, 2);  // Also checks no parens
      v = a[4'd3];
      `checks(v, "fooed");
      v = a[4'd2];
      `checks(v, "bared");
      i = a.exists(4'd0);
      `checkh(i, 0);
      if (a.exists(4'd0)) $stop;  // Check no width warning
      i = a.exists(4'd2);
      `checkh(i, 1);
      if (!a.exists(4'd2)) $stop;  // Check no width warning
      i = a.first(k);
      `checkh(i, 1);
      `checks(k, 4'd2);
      i = a.next(k);
      `checkh(i, 1);
      `checks(k, 4'd3);
      i = a.next(k);
      `checkh(i, 0);
      i = a.last(k);
      `checkh(i, 1);
      `checks(k, 4'd3);
      i = a.prev(k);
      `checkh(i, 1);
      `checks(k, 4'd2);
      i = a.prev(k);
      `checkh(i, 0);
      `checkp(a, "'{'h2:\"bared\", 'h3:\"fooed\"}");

      a.first(k);
      `checks(k, 4'd2);
      a.next(k);
      `checks(k, 4'd3);
      a.next(k);
      a.last(k);
      `checks(k, 4'd3);
      a.prev(k);
      `checks(k, 4'd2);

      a.delete(4'd2);
      i = a.size();
      `checkh(i, 1);

      b = a;  // Copy assignment
      i = b.size();
      `checkh(i, 1);
    end

    begin
      // Strings
      string a[string];
      string k;
      string v;

      a["foo"] = "fooed";
      a["bar"] = "bared";
      i = a.num();
      `checkh(i, 2);
      i = a.size();
      `checkh(i, 2);
      v = a["foo"];
      `checks(v, "fooed");
      v = a["bar"];
      `checks(v, "bared");
      i = a.exists("baz");
      `checkh(i, 0);
      i = a.exists("bar");
      `checkh(i, 1);
      i = a.first(k);
      `checkh(i, 1);
      `checks(k, "bar");
      i = a.next(k);
      `checkh(i, 1);
      `checks(k, "foo");
      i = a.next(k);
      `checkh(i, 0);
      i = a.last(k);
      `checkh(i, 1);
      `checks(k, "foo");
      i = a.prev(k);
      `checkh(i, 1);
      `checks(k, "bar");
      i = a.prev(k);
      `checkh(i, 0);
      `checkp(a["foo"], "\"fooed\"");
      `checkp(a, "'{\"bar\":\"bared\", \"foo\":\"fooed\"}");

      a.delete("bar");
      i = a.size();
      `checkh(i, 1);
      a.delete();
      i = a.size();
      `checkh(i, 0);
      i = a.first(k);
      `checkh(i, 0);
      i = a.last(k);
      `checkh(i, 0);

      // Patterns & default
      a = '{"f": "fooed", "b": "bared", default: "defaulted"};
      i = a.size();
      `checkh(i, 2);  // Default doesn't count
      v = a["f"];
      `checks(v, "fooed");
      v = a["b"];
      `checks(v, "bared");
      v = a["NEXISTS"];
      `checks(v, "defaulted");

      a = '{};
      i = a.size();
      `checkh(i, 0);
    end

    begin
      // Wide-wides - need special array container classes, ick.
      logic [91:2] a[logic [65:1]];
      int b[bit [99:0]];
      a[~65'hfe] = ~90'hfee;
      `checkh(a[~65'hfe], ~90'hfee);
      b[100'b1] = 1;
      `checkh(b[100'b1], 1);
    end

    begin
      int a[string];
      int sum;
      sum = 0;
      a["one"] = 1;
      a["two"] = 2;
      foreach (a[i]) sum += a[i];
      `checkh(sum, 1 + 2);
    end

    begin  // Issue #5435
      int a;
      int ok;
      int dict[int];

      dict[3] = 'h13;
      dict[4] = 'h14;
      dict[5] = 'h15;

      a = 4;
      ok = dict.first(a);
      if (a != 3) $stop;
      if (ok != 1) $stop;
      a = 4;
      ok = dict.next(a);
      if (a != 5) $stop;
      if (ok != 1) $stop;
      a = 4;
      ok = dict.last(a);
      if (a != 5) $stop;
      if (ok != 1) $stop;
    end

    $write("*-* All Finished *-*\n");
    $finish;
  end

endmodule