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package validator
import (
"github.com/vektah/gqlparser/ast"
. "github.com/vektah/gqlparser/validator"
)
func init() {
AddRule("VariablesAreInputTypes", func(observers *Events, addError AddErrFunc) {
observers.OnOperation(func(walker *Walker, operation *ast.OperationDefinition) {
for _, def := range operation.VariableDefinitions {
if def.Definition == nil {
continue
}
if !def.Definition.IsInputType() {
addError(
Message(
`Variable "$%s" cannot be non-input type "%s".`,
def.Variable,
def.Type.String(),
),
At(def.Position),
)
}
}
})
})
}
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