func getFieldDef(
schema typs.QLSchema,
parentType *typs.QLObject,
fieldName string,
) *typs.QLFieldDefinition {
if fieldName == typs.SchemaMetaFieldDef.Name &&
schema.GetQueryType() == parentType {
return typs.SchemaMetaFieldDef
}
if fieldName == typs.TypeMetaFieldDef.Name &&
schema.GetQueryType() == parentType {
return typs.TypeMetaFieldDef
}
if fieldName == typs.TypeNameMetaFieldDef.Name {
return typs.TypeNameMetaFieldDef
}
return parentType.GetFields()[fieldName]
}
func getOperationRootType(
schema typs.QLSchema,
operation *lang.OperationDefinition,
) *typs.QLObject {
switch operation.Operation {
case lang.OperationQuery:
return schema.GetQueryType()
case lang.OperationMutation:
murationType := schema.GetMutationType()
if murationType == nil {
panic(lang.NewQLError(
"Schema is not configured for mutations",
[]lang.INode{operation}))
}
return murationType
default:
panic(lang.NewQLError(
"Can only execute queries and mutation",
[]lang.INode{operation}))
}
}
func TypeFromAST(schema typs.QLSchema, inputTypeAST lang.IType) typs.QLType {
switch typ := inputTypeAST.(type) {
case *lang.ListType:
innerType := TypeFromAST(schema, typ.Type)
if innerType == nil {
return nil
}
return typs.NewQLList(innerType)
case *lang.NonNullType:
innerType := TypeFromAST(schema, typ.Type)
if innerType == nil {
return nil
}
return typs.NewQLNonNull(innerType)
case *lang.NamedType:
return schema.GetType(typ.Name.Value)
default:
throw("Must be a named type.")
return nil
}
}