From e0e6d130cd083a8285ea2991629e0049023da234 Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Thu, 19 Feb 2015 13:36:54 +0100
Subject: YosysJS stuff

---
 misc/yosysjs/yosysjs.js | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

(limited to 'misc/yosysjs/yosysjs.js')

diff --git a/misc/yosysjs/yosysjs.js b/misc/yosysjs/yosysjs.js
index 87c951183..a1181493e 100644
--- a/misc/yosysjs/yosysjs.js
+++ b/misc/yosysjs/yosysjs.js
@@ -45,6 +45,7 @@ var YosysJS = new function() {
 		ys.verbose = false;
 		ys.logprint = false;
 		ys.echo = false;
+		ys.errmsg = "";
 
 		if (typeof(reference_element) == 'string' && reference_element != "")
 			reference_element = document.getElementById(reference_element);
@@ -151,12 +152,20 @@ var YosysJS = new function() {
 					ys.write("");
 				ys.write(ys.prompt() + cmd);
 			}
-			mod.ccall('run', '', ['string'], [cmd]);
+			try {
+				mod.ccall('run', '', ['string'], [cmd]);
+			} catch (e) {
+				ys.errmsg = mod.ccall('errmsg', 'string', [], []);;
+			}
 			return ys.print_buffer;
 		}
 
 		ys.read_file = function(filename) {
-			return ys.window.FS.readFile(filename, {encoding: 'utf8'});
+			try {
+				return ys.window.FS.readFile(filename, {encoding: 'utf8'});
+			} catch (e) {
+				return "";
+			}
 		}
 
 		ys.write_file = function(filename, text) {
@@ -167,6 +176,12 @@ var YosysJS = new function() {
 			return ys.window.FS.readdir(dirname);
 		}
 
+		ys.remove_file = function(filename) {
+			try {
+				ys.window.FS.unlink(filename);
+			} catch (e) { }
+		}
+
 		doc.open()
 		doc.write('<script type="text/javascript" src="' + this.url_prefix + 'yosys.js"></' + 'script>');
 		doc.close()
-- 
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