1 files changed, 52 insertions, 0 deletions
diff --git a/azalea-brigadier/src/tree/command_node.rs b/azalea-brigadier/src/tree/command_node.rs
index e69de29b..286820b9 100644
--- a/azalea-brigadier/src/tree/command_node.rs
+++ b/azalea-brigadier/src/tree/command_node.rs
@@ -0,0 +1,52 @@
+use std::collections::HashMap;
+
+use crate::{
+    builder::argument_builder::ArgumentBuilder,
+    command::Command,
+    context::{command_context::CommandContext, command_context_builder::CommandContextBuilder},
+    exceptions::command_syntax_exception::CommandSyntaxException,
+    redirect_modifier::RedirectModifier,
+    string_reader::StringReader,
+    suggestion::{suggestions::Suggestions, suggestions_builder::SuggestionsBuilder},
+};
+
+use super::{argument_command_node::ArgumentCommandNode, literal_command_node::LiteralCommandNode};
+
+pub struct BaseCommandNode<S> {
+    // private final Map<String, CommandNode<S>> children = new LinkedHashMap<>();
+    // private final Map<String, LiteralCommandNode<S>> literals = new LinkedHashMap<>();
+    // private final Map<String, ArgumentCommandNode<S, ?>> arguments = new LinkedHashMap<>();
+    // private final Predicate<S> requirement;
+    // private final CommandNode<S> redirect;
+    // private final RedirectModifier<S> modifier;
+    // private final boolean forks;
+    // private Command<S> command;
+    children: HashMap<String, dyn CommandNode<S>>,
+    literals: HashMap<String, LiteralCommandNode<S>>,
+    arguments: HashMap<String, ArgumentCommandNode<S, _>>,
+    requirement: Option<dyn Fn(&S) -> bool>,
+    redirect: Option<dyn CommandNode<S>>,
+    modifier: Option<dyn RedirectModifier<S>>,
+    forks: bool,
+    command: Option<dyn Command<S>>,
+}
+
+impl<S> BaseCommandNode<S> {}
+
+pub trait CommandNode<S> {
+    fn name(&self) -> &str;
+    fn usage_text(&self) -> &str;
+    fn parse(
+        &self,
+        reader: StringReader,
+        context_builder: CommandContextBuilder<S>,
+    ) -> Result<(), CommandSyntaxException>;
+    fn list_suggestions(
+        &self,
+        context: CommandContext<S>,
+        builder: SuggestionsBuilder,
+    ) -> Result<Suggestions, CommandSyntaxException>;
+    fn is_valid_input(&self, input: &str) -> bool;
+    fn create_builder<T>(&self) -> dyn ArgumentBuilder<S, T>;
+    fn get_examples(&self) -> Vec<String>;
+}