From 9b432ba172317bca58c1752dcd6ef33f060f9b58 Mon Sep 17 00:00:00 2001
From: Stephen Williams <steve@icarus.com>
Date: Mon, 18 Jan 2021 12:39:54 -0800
Subject: [PATCH] Implement vpiSize method for stack string values.

This might come to pass for example when calling the function
$ivl_string_method$len(<expression>) where the expression is
calculated, and not simply a variable name.
---
 vvp/vpi_vthr_vector.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/vvp/vpi_vthr_vector.cc b/vvp/vpi_vthr_vector.cc
index 232b24a2c..57ece0e5d 100644
--- a/vvp/vpi_vthr_vector.cc
+++ b/vvp/vpi_vthr_vector.cc
@@ -247,6 +247,8 @@ int __vpiVThrStrStack::vpi_get(int code)
 	  case _vpiFromThr:
 	    return _vpiString;
 #endif
+	  case vpiSize:
+	    return vthread_get_str_stack(vpip_current_vthread, depth_).size();
 	  default:
 	    return 0;
       }