Initial VM work

1 files changed, 44 insertions, 2 deletions

diff --git a/src/type_tree.rs b/src/type_tree.rs
index b1faa54..e7389d5 100644
--- a/src/type_tree.rs
+++ b/src/type_tree.rs
@@ -38,7 +38,7 @@
 //! match a `Foo`, but more efficiently than with a predicate. Another big
 //! difference between predicates and type trees is how predicates are eager,
 //! and can consume values that would otherwise be matched by the rest of a
-//! pattern.
+//! pattern, like `IgnoredAny`.
 //!
 //! Type trees are pretty flexible. Consider the following example:
 //!
@@ -67,4 +67,46 @@
 //! struct visitor will error. But despite the error, it'll still create a type
 //! tree for the `deserialize_struct`!
 
-// TODO
+// use serde::Deserializer;
+
+// /// A deserializer which attempts to fill in a type tree.
+// struct TypeTreeDeserializer<'tt, D> {
+//     inner: D,
+//     tt: &'tt mut TypeTreeNode,
+// }
+
+/// A Type Tree entry type.
+///
+/// This represents a type to be deserialized with Serde, with everything that
+/// comes with that. It supports the 29 core Serde types, and 2 self-describing
+/// ones.
+#[derive(Clone, Debug, PartialEq, Eq, Hash, Default)]
+pub enum TypeTreeType {
+    /// An open type, which can be anything.
+    ///
+    /// This represents [`Deserializer::deserialize_any`].
+    #[default]
+    Any,
+    /// A type for a value which will be ignored.
+    ///
+    /// This represents [`Deserializer::deserialize_ignored_any`].
+    IgnoredAny,
+    Bool,
+}
+
+/// A node of a type tree.
+#[derive(Clone, Debug, PartialEq, Eq, Hash, Default)]
+pub struct TypeTreeNode {
+    /// The type to be requested for this node.
+    pub node_type: TypeTreeType,
+    /// The types for when this node is an enum.
+    pub enum_nodes: (), // TODO
+    /// The types for when this node is a map.
+    pub map_nodes: (), // TODO
+    /// The types for when this node is a seq.
+    pub seq_nodes: (), // TODO
+    /// The type for when this node is a some.
+    pub some_node: Option<Box<TypeTreeNode>>,
+    /// The type for when this node is a newtype struct.
+    pub newtype_node: Option<Box<TypeTreeNode>>,
+}