1package ast
 2
 3type SelectionSet []Selection
 4
 5type Selection interface {
 6	isSelection()
 7	GetPosition() *Position
 8}
 9
10func (*Field) isSelection()          {}
11func (*FragmentSpread) isSelection() {}
12func (*InlineFragment) isSelection() {}
13
14func (s *Field) GetPosition() *Position          { return s.Position }
15func (s *FragmentSpread) GetPosition() *Position { return s.Position }
16func (s *InlineFragment) GetPosition() *Position { return s.Position }
17
18type Field struct {
19	Alias        string
20	Name         string
21	Arguments    ArgumentList
22	Directives   DirectiveList
23	SelectionSet SelectionSet
24	Position     *Position `dump:"-"`
25
26	// Require validation
27	Definition       *FieldDefinition
28	ObjectDefinition *Definition
29}
30
31type Argument struct {
32	Name     string
33	Value    *Value
34	Position *Position `dump:"-"`
35}
36
37func (f *Field) ArgumentMap(vars map[string]interface{}) map[string]interface{} {
38	return arg2map(f.Definition.Arguments, f.Arguments, vars)
39}