github.com/cayleygraph/cayley@v0.7.7/query/gizmo/errors.go (about)

     1  // Copyright 2017 The Cayley Authors. All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package gizmo
    16  
    17  import "fmt"
    18  
    19  var (
    20  	errNoVia       = fmt.Errorf("expected predicate list")
    21  	errRegexpOnIRI = fmt.Errorf("regexps are not allowed on IRIs")
    22  )
    23  
    24  type errArgCount2 struct {
    25  	Expected int
    26  	Got      int
    27  }
    28  
    29  func (e errArgCount2) Error() string {
    30  	return fmt.Sprintf("expected %d argument, got %d", e.Expected, e.Got)
    31  }
    32  
    33  type errArgCount struct {
    34  	Got int
    35  }
    36  
    37  func (e errArgCount) Error() string {
    38  	return fmt.Sprintf("unexpected arguments count: %d", e.Got)
    39  }
    40  
    41  type errNotQuadValue struct {
    42  	Val interface{}
    43  }
    44  
    45  func (e errNotQuadValue) Error() string {
    46  	return fmt.Sprintf("not a quad.Value: %T", e.Val)
    47  }