forked from wundergraph/graphql-go-tools
-
Notifications
You must be signed in to change notification settings - Fork 4
/
ast_field.go
168 lines (145 loc) · 5.11 KB
/
ast_field.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
package ast
import (
"bytes"
"github.com/TykTechnologies/graphql-go-tools/v2/internal/pkg/unsafebytes"
"github.com/TykTechnologies/graphql-go-tools/v2/pkg/lexer/position"
)
type Field struct {
Alias Alias // optional, e.g. renamed:
Name ByteSliceReference // field name, e.g. id
HasArguments bool
Arguments ArgumentList // optional
HasDirectives bool
Directives DirectiveList // optional
SelectionSet int // optional
HasSelections bool
Position position.Position
}
func (d *Document) CopyField(ref int) int {
var arguments ArgumentList
var directives DirectiveList
var selectionSet int
if d.Fields[ref].HasArguments {
arguments = d.CopyArgumentList(d.Fields[ref].Arguments)
}
if d.Fields[ref].HasDirectives {
directives = d.CopyDirectiveList(d.Fields[ref].Directives)
}
if d.Fields[ref].HasSelections {
selectionSet = d.CopySelectionSet(d.Fields[ref].SelectionSet)
}
return d.AddField(Field{
Name: d.copyByteSliceReference(d.Fields[ref].Name),
Alias: d.CopyAlias(d.Fields[ref].Alias),
HasArguments: d.Fields[ref].HasArguments,
Arguments: arguments,
HasDirectives: d.Fields[ref].HasDirectives,
Directives: directives,
HasSelections: d.Fields[ref].HasSelections,
SelectionSet: selectionSet,
}).Ref
}
func (d *Document) FieldNameBytes(ref int) ByteSlice {
return d.Input.ByteSlice(d.Fields[ref].Name)
}
// FieldNameUnsafeString - returns field name as a string which is unsafe pointer to document input content
func (d *Document) FieldNameUnsafeString(ref int) string {
return unsafebytes.BytesToString(d.Input.ByteSlice(d.Fields[ref].Name))
}
// FieldNameString - returns fied name as a string value
func (d *Document) FieldNameString(ref int) string {
return string(d.Input.ByteSlice(d.Fields[ref].Name))
}
func (d *Document) AddField(field Field) Node {
d.Fields = append(d.Fields, field)
return Node{
Kind: NodeKindField,
Ref: len(d.Fields) - 1,
}
}
func (d *Document) AddArgumentToField(fieldRef, argRef int) {
if !d.Fields[fieldRef].HasArguments {
d.Fields[fieldRef].HasArguments = true
d.Fields[fieldRef].Arguments.Refs = d.Refs[d.NextRefIndex()][:0]
}
d.Fields[fieldRef].Arguments.Refs = append(d.Fields[fieldRef].Arguments.Refs, argRef)
}
func (d *Document) FieldArguments(ref int) []int {
return d.Fields[ref].Arguments.Refs
}
func (d *Document) FieldArgument(field int, name ByteSlice) (ref int, exists bool) {
for _, i := range d.Fields[field].Arguments.Refs {
if bytes.Equal(d.ArgumentNameBytes(i), name) {
return i, true
}
}
return -1, false
}
func (d *Document) FieldDirectives(ref int) []int {
return d.Fields[ref].Directives.Refs
}
func (d *Document) FieldsHaveSameShape(left, right int) bool {
leftAliasDefined := d.FieldAliasIsDefined(left)
rightAliasDefined := d.FieldAliasIsDefined(right)
switch {
case !leftAliasDefined && !rightAliasDefined:
return d.Input.ByteSliceReferenceContentEquals(d.Fields[left].Name, d.Fields[right].Name)
case leftAliasDefined && rightAliasDefined:
return d.Input.ByteSliceReferenceContentEquals(d.Fields[left].Alias.Name, d.Fields[right].Alias.Name)
case leftAliasDefined && !rightAliasDefined:
return d.Input.ByteSliceReferenceContentEquals(d.Fields[left].Alias.Name, d.Fields[right].Name)
case !leftAliasDefined && rightAliasDefined:
return d.Input.ByteSliceReferenceContentEquals(d.Fields[left].Name, d.Fields[right].Alias.Name)
default:
return false
}
}
func (d *Document) FieldHasArguments(ref int) bool {
return d.Fields[ref].HasArguments
}
func (d *Document) FieldHasSelections(ref int) bool {
return d.Fields[ref].HasSelections
}
func (d *Document) FieldHasDirectives(ref int) bool {
return d.Fields[ref].HasDirectives
}
func (d *Document) FieldsAreEqualFlat(left, right int) bool {
return bytes.Equal(d.FieldNameBytes(left), d.FieldNameBytes(right)) && // name
bytes.Equal(d.FieldAliasBytes(left), d.FieldAliasBytes(right)) && // alias
!d.FieldHasSelections(left) && !d.FieldHasSelections(right) && // selections
d.ArgumentSetsAreEquals(d.FieldArguments(left), d.FieldArguments(right)) && // arguments
d.DirectiveSetsAreEqual(d.FieldDirectives(left), d.FieldDirectives(right)) // directives
}
func (d *Document) FieldSelectionSet(ref int) (selectionSetRef int, ok bool) {
if !d.Fields[ref].HasSelections {
return InvalidRef, false
}
return d.Fields[ref].SelectionSet, true
}
// FieldTypeNode - returns the type node of a field. it is applicable for fields on object and interface types
func (d *Document) FieldTypeNode(fieldName []byte, enclosingNode Node) (node Node, ok bool) {
var (
fieldDefRef int
hasField bool
)
switch enclosingNode.Kind {
case NodeKindObjectTypeDefinition:
fieldDefRef, hasField = d.ObjectTypeDefinitionFieldWithName(enclosingNode.Ref, fieldName)
if !hasField {
return
}
case NodeKindInterfaceTypeDefinition:
fieldDefRef, hasField = d.InterfaceTypeDefinitionFieldWithName(enclosingNode.Ref, fieldName)
if !hasField {
return
}
default:
return
}
fieldDefTypeName := d.FieldDefinitionTypeNameBytes(fieldDefRef)
node, hasNode := d.NodeByName(fieldDefTypeName)
if !hasNode {
return
}
return node, true
}