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package terraform
import (
"fmt"
"github.com/hashicorp/terraform/config"
)
// varNameForVar returns the VarName value for an interpolated variable.
// This value is compared to the VarName() value for the nodes within the
// graph to build the graph edges.
func varNameForVar(raw config.InterpolatedVariable) string {
switch v := raw.(type) {
case *config.ModuleVariable:
return fmt.Sprintf("module.%s.output.%s", v.Name, v.Field)
case *config.ResourceVariable:
return v.ResourceId()
case *config.UserVariable:
return fmt.Sprintf("var.%s", v.Name)
default:
return ""
}
}
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