Form rendering is slow when "OneOf" property is defined at nested levels

[KittyJose]

Description Form rendering is very slow when "OneOf" property is defined.

Steps to Reproduce

1. Copy below provided SCHEMA, which has OneOf defined in nested levels... on rendering Form takes a lot of time (minimum 45 seconds to 2 minutes).

2. One of works perfectly on a small schema with less nested levels. But on large schemas the webpage gets frozen and stuck.

3. I suspect the reason is in SchemaField.js => on encountering one of property the whole schema is rechecked everytime to encounter another one of within the schema and the process goes on recursively. It would be great if we could resolve this recursive schema checking faster or maybe turn off schema checking if oneOf options properties are defined from the front end.

4. Reproduce by using below schema

   
   {
   "type": "object",
   "properties": {
   "general_variables": {
     "type": "object",
     "title": "general_variables",
     "info": "SUBDOCUMENT",
     "properties": {
       "alternative_names": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "AlternativeNames",
                 "default": "AlternativeNames"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "AlternativeNames",
               "default": "AlternativeNames"
             }
           }
         }
       },
       "capital": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "Capital",
                 "default": "Capital"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "Capital",
               "default": "Capital"
             }
           }
         }
       },
       "degree_of_centralization": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "DegreeOfCentralization",
                 "default": "DegreeOfCentralization"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "DegreeOfCentralization",
               "default": "DegreeOfCentralization"
             }
           }
         }
       },
       "duration": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "Duration",
                 "default": "Duration"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "Duration",
               "default": "Duration"
             }
           }
         }
       },
       "language": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "Language",
                 "default": "Language"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "Language",
               "default": "Language"
             }
           }
         }
       },
       "original_name": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "OriginalName",
                 "default": "OriginalName"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "OriginalName",
               "default": "OriginalName"
             }
           }
         }
       },
       "peak_date": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "PeakDate",
                 "default": "PeakDate"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "PeakDate",
               "default": "PeakDate"
             }
           }
         }
       },
       "preceding_%28quasi%29polity": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "Preceding%28Quasi%29Polity",
                 "default": "Preceding%28Quasi%29Polity"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "Preceding%28Quasi%29Polity",
               "default": "Preceding%28Quasi%29Polity"
             }
           }
         }
       },
       "ra": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "Ra",
                 "default": "Ra"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "Ra",
               "default": "Ra"
             }
           }
         }
       },
       "relationship_to_preceding_%28quasi%29polity": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "RelationshipToPreceding%28Quasi%29Polity",
                 "default": "RelationshipToPreceding%28Quasi%29Polity"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "RelationshipToPreceding%28Quasi%29Polity",
               "default": "RelationshipToPreceding%28Quasi%29Polity"
             }
           }
         }
       },
       "scale_of_supra-cultural_interaction": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "ScaleOfSupra-CulturalInteraction",
                 "default": "ScaleOfSupra-CulturalInteraction"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "ScaleOfSupra-CulturalInteraction",
               "default": "ScaleOfSupra-CulturalInteraction"
             }
           }
         }
       },
       "succeeding_%28quasi%29polity": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "Succeeding%28Quasi%29Polity",
                 "default": "Succeeding%28Quasi%29Polity"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "Succeeding%28Quasi%29Polity",
               "default": "Succeeding%28Quasi%29Polity"
             }
           }
         }
       },
       "supra-polity_relations": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "Supra-PolityRelations",
                 "default": "Supra-PolityRelations"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "Supra-PolityRelations",
               "default": "Supra-PolityRelations"
             }
           }
         }
       },
       "supracultural_entity": {
         "type": "array",
         "items": [
           {
             "type": "object",
             "properties": {
               "@oneOf": {
                 "title": "@oneOf",
                 "type": "object",
                 "description": "Choose from the list ...",
                 "oneOf": [
                   {
                     "properties": {
                       "lorem": {
                         "type": "string"
                       }
                     }
                   },
                   {
                     "properties": {
                       "ipsum": {
                         "type": "string"
                       }
                     }
                   }
                 ]
               },
               "@type": {
                 "type": "string",
                 "title": "SupraculturalEntity",
                 "default": "SupraculturalEntity"
               }
             }
           }
         ],
         "additionalItems": {
           "type": "object",
           "properties": {
             "@oneOf": {
               "title": "@oneOf",
               "type": "object",
               "description": "Choose from the list ...",
               "oneOf": [
                 {
                   "properties": {
                     "lorem": {
                       "type": "string"
                     }
                   }
                 },
                 {
                   "properties": {
                     "ipsum": {
                       "type": "string"
                     }
                   }
                 }
               ]
             },
             "@type": {
               "type": "string",
               "title": "SupraculturalEntity",
               "default": "SupraculturalEntity"
             }
           }
         }
       },
       "@type": {
         "type": "string",
         "title": "GeneralVariables",
         "default": "GeneralVariables"
       }
     }
   },
   "institutional_variables": {
     "type": "object",
     "title": "institutional_variables",
     "info": "SUBDOCUMENT",
     "properties": {
       "limits_on_power_of_the_chief_executive": {
         "type": "object",
         "title": "limits_on_power_of_the_chief_executive",
         "info": "SUBDOCUMENT",
         "properties": {
           "constraint_on_executive_by_government": {
             "type": "array",
             "items": [
               {
                 "type": "object",
                 "properties": {
                   "@oneOf": {
                     "title": "@oneOf",
                     "type": "object",
                     "description": "Choose from the list ...",
                     "oneOf": [
                       {
                         "properties": {
                           "lorem": {
                             "type": "string"
                           }
                         }
                       },
                       {
                         "properties": {
                           "ipsum": {
                             "type": "string"
                           }
                         }
                       }
                     ]
                   },
                   "@type": {
                     "type": "string",
                     "title": "ConstraintOnExecutiveByGovernment",
                     "default": "ConstraintOnExecutiveByGovernment"
                   }
                 }
               }
             ],
             "additionalItems": {
               "type": "object",
               "properties": {
                 "@oneOf": {
                   "title": "@oneOf",
                   "type": "object",
                   "description": "Choose from the list ...",
                   "oneOf": [
                     {
                       "properties": {
                         "lorem": {
                           "type": "string"
                         }
                       }
                     },
                     {
                       "properties": {
                         "ipsum": {
                           "type": "string"
                         }
                       }
                     }
                   ]
                 },
                 "@type": {
                   "type": "string",
                   "title": "ConstraintOnExecutiveByGovernment",
                   "default": "ConstraintOnExecutiveByGovernment"
                 }
               }
             }
           },
           "constraint_on_executive_by_non-government": {
             "type": "array",
             "items": [
               {
                 "type": "object",
                 "properties": {
                   "@oneOf": {
                     "title": "@oneOf",
                     "type": "object",
                     "description": "Choose from the list ...",
                     "oneOf": [
                       {
                         "properties": {
                           "lorem": {
                             "type": "string"
                           }
                         }
                       },
                       {
                         "properties": {
                           "ipsum": {
                             "type": "string"
                           }
                         }
                       }
                     ]
                   },
                   "@type": {
                     "type": "string",
                     "title": "ConstraintOnExecutiveByNon-Government",
                     "default": "ConstraintOnExecutiveByNon-Government"
                   }
                 }
               }
             ],
             "additionalItems": {
               "type": "object",
               "properties": {
                 "@oneOf": {
                   "title": "@oneOf",
                   "type": "object",
                   "description": "Choose from the list ...",
                   "oneOf": [
                     {
                       "properties": {
                         "lorem": {
                           "type": "string"
                         }
                       }
                     },
                     {
                       "properties": {
                         "ipsum": {
                           "type": "string"
                         }
                       }
                     }
                   ]
                 },
                 "@type": {
                   "type": "string",
                   "title": "ConstraintOnExecutiveByNon-Government",
                   "default": "ConstraintOnExecutiveByNon-Government"
                 }
               }
             }
           },
           "impeachment": {
             "type": "array",
             "items": [
               {
                 "type": "object",
                 "properties": {
                   "@oneOf": {
                     "title": "@oneOf",
                     "type": "object",
                     "description": "Choose from the list ...",
                     "oneOf": [
                       {
                         "properties": {
                           "lorem": {
                             "type": "string"
                           }
                         }
                       },
                       {
                         "properties": {
                           "ipsum": {
                             "type": "string"
                           }
                         }
                       }
                     ]
                   },
                   "@type": {
                     "type": "string",
                     "title": "Impeachment",
                     "default": "Impeachment"
                   }
                 }
               }
             ],
             "additionalItems": {
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ReactDOM.render((

), document.getElementById("app"));```

Expected behavior Form to render within seconds ...

Actual behavior Form takes minimum 45 seconds to 2 minutes to load and webpage gets stuck/ frozen

Version @rjsf/core": "^3.2.0

[KittyJose]

I had to cut my schema a bit, coz i hit maximum limit. But i can send you the entire schema (if required). This problem prevails for any of and one of.

[Sakthivelgovindan]

I'm also facing the same issue @KittyJose

[KittyJose]

@Sakthivelgovindan This was fixed in the recent updates - perhaps check if the versions are same? "react-jsonschema-form": "^1.8.1",

[stale[bot]]

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[stale[bot]]

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