[executor] Enumerate elements for a list value from custom iterator

botobag / artemis

GraphQL implementation for Go

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[executor] Enumerate elements for a list value from custom iterator #156

Closed zonr closed 5 years ago

zonr commented 5 years ago

Currently, executor.ExecuteNodeTask.completeWrappingValue extracts element values for a list using reflection. This forces resolvers to convert values into an array or a slice before return. Allowing custom iterator to be provided from the value would save the memory copies.