1 files changed, 34 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/hcl2/hcldec/variables.go b/vendor/github.com/hashicorp/hcl2/hcldec/variables.go
new file mode 100644
index 0000000..427b0d0
--- /dev/null
+++ b/vendor/github.com/hashicorp/hcl2/hcldec/variables.go
@@ -0,0 +1,34 @@
+package hcldec
+
+import (
+        "github.com/hashicorp/hcl2/hcl"
+)
+
+// Variables processes the given body with the given spec and returns a
+// list of the variable traversals that would be required to decode
+// the same pairing of body and spec.
+//
+// This can be used to conditionally populate the variables in the EvalContext
+// passed to Decode, for applications where a static scope is insufficient.
+//
+// If the given body is not compliant with the given schema, the result may
+// be incomplete, but that's assumed to be okay because the eventual call
+// to Decode will produce error diagnostics anyway.
+func Variables(body hcl.Body, spec Spec) []hcl.Traversal {
+        schema := ImpliedSchema(spec)
+
+        content, _, _ := body.PartialContent(schema)
+
+        var vars []hcl.Traversal
+
+        if vs, ok := spec.(specNeedingVariables); ok {
+                vars = append(vars, vs.variablesNeeded(content)...)
+        }
+        spec.visitSameBodyChildren(func(s Spec) {
+                if vs, ok := s.(specNeedingVariables); ok {
+                        vars = append(vars, vs.variablesNeeded(content)...)
+                }
+        })
+
+        return vars
+}