make `enclose` & `wrap` work with `sourceMap` (#3396)

fixes #3313

1 files changed, 18 insertions, 16 deletions

diff --git a/bin/uglifyjs b/bin/uglifyjs
index 35207bf7..ace94e7e 100755
--- a/bin/uglifyjs
+++ b/bin/uglifyjs
@@ -215,24 +215,26 @@ function run() {
         var ex = result.error;
         if (ex.name == "SyntaxError") {
             print_error("Parse error at " + ex.filename + ":" + ex.line + "," + ex.col);
-            var col = ex.col;
-            var lines = files[ex.filename].split(/\r?\n/);
-            var line = lines[ex.line - 1];
-            if (!line && !col) {
-                line = lines[ex.line - 2];
-                col = line.length;
-            }
-            if (line) {
-                var limit = 70;
-                if (col > limit) {
-                    line = line.slice(col - limit);
-                    col = limit;
+            var file = files[ex.filename];
+            if (file) {
+                var col = ex.col;
+                var lines = file.split(/\r?\n/);
+                var line = lines[ex.line - 1];
+                if (!line && !col) {
+                    line = lines[ex.line - 2];
+                    col = line.length;
+                }
+                if (line) {
+                    var limit = 70;
+                    if (col > limit) {
+                        line = line.slice(col - limit);
+                        col = limit;
+                    }
+                    print_error(line.slice(0, 80));
+                    print_error(line.slice(0, col).replace(/\S/g, " ") + "^");
                 }
-                print_error(line.slice(0, 80));
-                print_error(line.slice(0, col).replace(/\S/g, " ") + "^");
             }
-        }
-        if (ex.defs) {
+        } else if (ex.defs) {
             print_error("Supported options:");
             print_error(format_object(ex.defs));
         }