Add highlight info for emit use outside of emitter functions.

synapse/lib/ast.py

@@ -4830,12 +4830,18 @@ async def run(self, runt, genr):
         count = 0
         async for node, path in genr:
             count += 1
-            await runt.emit(await self.kids[0].compute(runt, path))
+            try:
+                await runt.emit(await self.kids[0].compute(runt, path))
+            except s_exc.StormRuntimeError as e:
+                raise self.addExcInfo(e)
             yield node, path
 
         # no items in pipeline and runtsafe. execute once.
         if count == 0 and self.isRuntSafe(runt):
-            await runt.emit(await self.kids[0].compute(runt, None))
+            try:
+                await runt.emit(await self.kids[0].compute(runt, None))
+            except s_exc.StormRuntimeError as e:
+                raise self.addExcInfo(e)
 
 class Stop(Oper):
 

synapse/tests/test_lib_storm.py

@@ -339,9 +339,16 @@ async def test_lib_storm_emit(self):
             prnt = [m[1]['mesg'] for m in msgs if m[0] == 'print']
             self.eq(prnt, ['inner 0', 'outer 0'])
 
-            await self.asyncraises(s_exc.StormRuntimeError, core.nodes('emit foo'))
+            # Emit outside an emitter function raises a runtime error with posinfo
+            with self.raises(s_exc.StormRuntimeError) as cm:
+                await core.nodes('emit foo')
+            self.nn(cm.exception.get('highlight'))
+
+            with self.raises(s_exc.StormRuntimeError) as cm:
+                await core.nodes('[test:str=emit] emit foo')
+            self.nn(cm.exception.get('highlight'))
 
-            # stop cannot cross function boundaries
+                # stop cannot cross function boundaries
             q = '''
             function inner(v) {
                 if ( $v = 2 ) {