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package common
import (
"github.com/graph-gophers/graphql-go/errors"
)
// http://facebook.github.io/graphql/draft/#InputValueDefinition
type InputValue struct {
Name Ident
Type Type
Default Literal
Desc string
Loc errors.Location
TypeLoc errors.Location
}
type InputValueList []*InputValue
func (l InputValueList) Get(name string) *InputValue {
for _, v := range l {
if v.Name.Name == name {
return v
}
}
return nil
}
func ParseInputValue(l *Lexer) *InputValue {
p := &InputValue{}
p.Loc = l.Location()
p.Desc = l.DescComment()
p.Name = l.ConsumeIdentWithLoc()
l.ConsumeToken(':')
p.TypeLoc = l.Location()
p.Type = ParseType(l)
if l.Peek() == '=' {
l.ConsumeToken('=')
p.Default = ParseLiteral(l, true)
}
return p
}
type Argument struct {
Name Ident
Value Literal
}
type ArgumentList []Argument
func (l ArgumentList) Get(name string) (Literal, bool) {
for _, arg := range l {
if arg.Name.Name == name {
return arg.Value, true
}
}
return nil, false
}
func (l ArgumentList) MustGet(name string) Literal {
value, ok := l.Get(name)
if !ok {
panic("argument not found")
}
return value
}
func ParseArguments(l *Lexer) ArgumentList {
var args ArgumentList
l.ConsumeToken('(')
for l.Peek() != ')' {
name := l.ConsumeIdentWithLoc()
l.ConsumeToken(':')
value := ParseLiteral(l, false)
args = append(args, Argument{Name: name, Value: value})
}
l.ConsumeToken(')')
return args
}
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