1package ast
 2
 3type DefinitionKind string
 4
 5const (
 6	Scalar      DefinitionKind = "SCALAR"
 7	Object      DefinitionKind = "OBJECT"
 8	Interface   DefinitionKind = "INTERFACE"
 9	Union       DefinitionKind = "UNION"
10	Enum        DefinitionKind = "ENUM"
11	InputObject DefinitionKind = "INPUT_OBJECT"
12)
13
14// ObjectDefinition is the core type definition object, it includes all of the definable types
15// but does *not* cover schema or directives.
16//
17// @vektah: Javascript implementation has different types for all of these, but they are
18// more similar than different and don't define any behaviour. I think this style of
19// "some hot" struct works better, at least for go.
20//
21// Type extensions are also represented by this same struct.
22type Definition struct {
23	Kind        DefinitionKind
24	Description string
25	Name        string
26	Directives  DirectiveList
27	Interfaces  []string      // object and input object
28	Fields      FieldList     // object and input object
29	Types       []string      // union
30	EnumValues  EnumValueList // enum
31
32	Position *Position `dump:"-"`
33}
34
35func (d *Definition) IsLeafType() bool {
36	return d.Kind == Enum || d.Kind == Scalar
37}
38
39func (d *Definition) IsAbstractType() bool {
40	return d.Kind == Interface || d.Kind == Union
41}
42
43func (d *Definition) IsCompositeType() bool {
44	return d.Kind == Object || d.Kind == Interface || d.Kind == Union
45}
46
47func (d *Definition) IsInputType() bool {
48	return d.Kind == Scalar || d.Kind == Enum || d.Kind == InputObject
49}
50
51func (d *Definition) OneOf(types ...string) bool {
52	for _, t := range types {
53		if d.Name == t {
54			return true
55		}
56	}
57	return false
58}
59
60type FieldDefinition struct {
61	Description  string
62	Name         string
63	Arguments    ArgumentDefinitionList // only for objects
64	DefaultValue *Value                 // only for input objects
65	Type         *Type
66	Directives   DirectiveList
67	Position     *Position `dump:"-"`
68}
69
70type ArgumentDefinition struct {
71	Description  string
72	Name         string
73	DefaultValue *Value
74	Type         *Type
75	Directives   DirectiveList
76	Position     *Position `dump:"-"`
77}
78
79type EnumValueDefinition struct {
80	Description string
81	Name        string
82	Directives  DirectiveList
83	Position    *Position `dump:"-"`
84}
85
86type DirectiveDefinition struct {
87	Description string
88	Name        string
89	Arguments   ArgumentDefinitionList
90	Locations   []DirectiveLocation
91	Position    *Position `dump:"-"`
92}