Unfold the "hcl" directory up into the root

The main HCL package is more visible this way, and so it's easier than
having to pick it out from dozens of other package directories.

1 files changed, 21 insertions, 0 deletions

diff --git a/schema.go b/schema.go
new file mode 100644
index 0000000..891257a
--- /dev/null
+++ b/schema.go
@@ -0,0 +1,21 @@
+package hcl
+
+// BlockHeaderSchema represents the shape of a block header, and is
+// used for matching blocks within bodies.
+type BlockHeaderSchema struct {
+	Type       string
+	LabelNames []string
+}
+
+// AttributeSchema represents the requirements for an attribute, and is used
+// for matching attributes within bodies.
+type AttributeSchema struct {
+	Name     string
+	Required bool
+}
+
+// BodySchema represents the desired shallow structure of a body.
+type BodySchema struct {
+	Attributes []AttributeSchema
+	Blocks     []BlockHeaderSchema
+}