github.com/tam7t/terraform@v0.7.0-rc2.0.20160705125922-be2469a05c5e/terraform/eval_interpolate.go (about)

     1  package terraform
     2  
     3  import "github.com/hashicorp/terraform/config"
     4  
     5  // EvalInterpolate is an EvalNode implementation that takes a raw
     6  // configuration and interpolates it.
     7  type EvalInterpolate struct {
     8  	Config   *config.RawConfig
     9  	Resource *Resource
    10  	Output   **ResourceConfig
    11  }
    12  
    13  func (n *EvalInterpolate) Eval(ctx EvalContext) (interface{}, error) {
    14  	rc, err := ctx.Interpolate(n.Config, n.Resource)
    15  	if err != nil {
    16  		return nil, err
    17  	}
    18  
    19  	if n.Output != nil {
    20  		*n.Output = rc
    21  	}
    22  
    23  	return nil, nil
    24  }