1 files changed, 63 insertions, 0 deletions
diff --git a/vendor/github.com/hashicorp/hil/ast/variables_helper.go b/vendor/github.com/hashicorp/hil/ast/variables_helper.go
new file mode 100644
index 00000000..06bd18de
--- /dev/null
+++ b/vendor/github.com/hashicorp/hil/ast/variables_helper.go
@@ -0,0 +1,63 @@
+package ast
+
+import "fmt"
+
+func VariableListElementTypesAreHomogenous(variableName string, list []Variable) (Type, error) {
+	if len(list) == 0 {
+		return TypeInvalid, fmt.Errorf("list %q does not have any elements so cannot determine type.", variableName)
+	}
+
+	elemType := TypeUnknown
+	for _, v := range list {
+		if v.Type == TypeUnknown {
+			continue
+		}
+
+		if elemType == TypeUnknown {
+			elemType = v.Type
+			continue
+		}
+
+		if v.Type != elemType {
+			return TypeInvalid, fmt.Errorf(
+				"list %q does not have homogenous types. found %s and then %s",
+				variableName,
+				elemType, v.Type,
+			)
+		}
+
+		elemType = v.Type
+	}
+
+	return elemType, nil
+}
+
+func VariableMapValueTypesAreHomogenous(variableName string, vmap map[string]Variable) (Type, error) {
+	if len(vmap) == 0 {
+		return TypeInvalid, fmt.Errorf("map %q does not have any elements so cannot determine type.", variableName)
+	}
+
+	elemType := TypeUnknown
+	for _, v := range vmap {
+		if v.Type == TypeUnknown {
+			continue
+		}
+
+		if elemType == TypeUnknown {
+			elemType = v.Type
+			continue
+		}
+
+		if v.Type != elemType {
+			return TypeInvalid, fmt.Errorf(
+				"map %q does not have homogenous types. found %s and then %s",
+				variableName,
+				elemType, v.Type,
+			)
+		}
+
+		elemType = v.Type
+	}
+
+	return elemType, nil
+}