1 files changed, 4 insertions, 9 deletions

diff --git a/vendor/github.com/hashicorp/terraform/terraform/interpolate.go b/vendor/github.com/hashicorp/terraform/terraform/interpolate.go
index 26c1857..97bb1f6 100644
--- a/vendor/github.com/hashicorp/terraform/terraform/interpolate.go
+++ b/vendor/github.com/hashicorp/terraform/terraform/interpolate.go
@@ -11,16 +11,11 @@ import (
         "github.com/hashicorp/hil"
         "github.com/hashicorp/hil/ast"
         "github.com/hashicorp/terraform/config"
+        "github.com/hashicorp/terraform/config/hcl2shim"
         "github.com/hashicorp/terraform/config/module"
         "github.com/hashicorp/terraform/flatmap"
 )
 
-const (
-        // VarEnvPrefix is the prefix of variables that are read from
-        // the environment to set variables here.
-        VarEnvPrefix = "TF_VAR_"
-)
-
 // Interpolater is the structure responsible for determining the values
 // for interpolations such as `aws_instance.foo.bar`.
 type Interpolater struct {
@@ -71,7 +66,7 @@ func (i *Interpolater) valueCountVar(
 func unknownVariable() ast.Variable {
         return ast.Variable{
                 Type:  ast.TypeUnknown,
-                Value: config.UnknownVariableValue,
+                Value: hcl2shim.UnknownVariableValue,
         }
 }
 
@@ -659,7 +654,7 @@ func (i *Interpolater) interpolateComplexTypeAttribute(
                 // ".#" count field is marked as unknown to indicate "this whole list is
                 // unknown". We must honor that meaning here so computed references can be
                 // treated properly during the plan phase.
-                if lengthAttr == config.UnknownVariableValue {
+                if lengthAttr == hcl2shim.UnknownVariableValue {
                         return unknownVariable(), nil
                 }
 
@@ -675,7 +670,7 @@ func (i *Interpolater) interpolateComplexTypeAttribute(
                 // ".%" count field is marked as unknown to indicate "this whole list is
                 // unknown". We must honor that meaning here so computed references can be
                 // treated properly during the plan phase.
-                if lengthAttr == config.UnknownVariableValue {
+                if lengthAttr == hcl2shim.UnknownVariableValue {
                         return unknownVariable(), nil
                 }