fixed EA-48905 - SIOOBE: ParameterInfoComponent$OneLineComponent.buildLabelText

python/src/com/jetbrains/python/PyParameterInfoHandler.java

@@ -150,7 +150,7 @@ public class PyParameterInfoHandler implements ParameterInfoHandler<PyArgumentLi
       EnumSet[] flags = new EnumSet[hintFlags.size()];
       for (int i = 0; i < flags.length; i += 1) flags[i] = hintFlags.get(i);
       if (hints.length < 1) {
-        hints = new String[]{XmlStringUtil.escapeString(NO_PARAMS_MSG)};
+        hints = new String[]{NO_PARAMS_MSG};
         flags = new EnumSet[]{EnumSet.of(ParameterInfoUIContextEx.Flag.DISABLE)};
       }
 

python/testData/paramInfo/NoArgsException.py

@@ -0,0 +1,9 @@
+def function(param, param1):
+    pass
+
+
+def result():
+    pass
+
+
+function(result<arg1>(), result())

python/testSrc/com/jetbrains/python/PyParameterInfoTest.java

@@ -385,6 +385,11 @@ public class PyParameterInfoTest extends LightMarkedTestCase {
     feignCtrlP(marks.get("<arg1>").getTextOffset()).check("a, b, c", new String[]{"a, "});
   }
 
+  public void testNoArgsException() {
+    Map<String, PsiElement> marks = loadTest(1);
+    feignCtrlP(marks.get("<arg1>").getTextOffset()).check("<no parameters>", new String[0], new String[]{"<no parameters>"});
+  }
+
   /**
    * Imitates pressing of Ctrl+P; fails if results are not as expected.
    * @param offset offset of 'cursor' where ^P is pressed.