vendor/github.com/hashicorp/hcl2/hcl/hclsyntax/navigation.go

   1 package hclsyntax
   2
   3 import (
   4         "bytes"
   5         "fmt"
   6 )
   7
   8 type navigation struct {
   9         root *Body
  10 }
  11
  12 // Implementation of hcled.ContextString
  13 func (n navigation) ContextString(offset int) string {
  14         // We will walk our top-level blocks until we find one that contains
  15         // the given offset, and then construct a representation of the header
  16         // of the block.
  17
  18         var block *Block
  19         for _, candidate := range n.root.Blocks {
  20                 if candidate.Range().ContainsOffset(offset) {
  21                         block = candidate
  22                         break
  23                 }
  24         }
  25
  26         if block == nil {
  27                 return ""
  28         }
  29
  30         if len(block.Labels) == 0 {
  31                 // Easy case!
  32                 return block.Type
  33         }
  34
  35         buf := &bytes.Buffer{}
  36         buf.WriteString(block.Type)
  37         for _, label := range block.Labels {
  38                 fmt.Fprintf(buf, " %q", label)
  39         }
  40         return buf.String()
  41 }