From 7822c00e8689c99ded0a360026f4e7ace1f2c87f Mon Sep 17 00:00:00 2001
From: Miquel Sabaté Solà <mikisabate@gmail.com>
Date: Tue, 16 Jul 2024 11:12:26 +0200
Subject: Add support for branching
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This is a bare bones implementation of it, and there's a lot of nuance
that it's being missed, but at least the fundamentals have been
implemented already.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
---
 lib/xixanta/src/context.rs | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

(limited to 'lib/xixanta/src/context.rs')

diff --git a/lib/xixanta/src/context.rs b/lib/xixanta/src/context.rs
index 62ec7e0..aade200 100644
--- a/lib/xixanta/src/context.rs
+++ b/lib/xixanta/src/context.rs
@@ -3,10 +3,17 @@ use std::collections::HashMap;
 
 const GLOBAL_CONTEXT: &str = "Global";
 
+#[derive(Debug)]
+pub struct PValue {
+    pub node: PString,
+    pub value: usize,
+    pub label: bool,
+}
+
 #[derive(Debug)]
 pub struct Context {
     stack: Vec<String>,
-    map: HashMap<String, HashMap<String, PString>>,
+    map: HashMap<String, HashMap<String, PValue>>,
 }
 
 impl Default for Context {
@@ -27,18 +34,18 @@ impl Context {
         self.stack = vec![];
     }
 
-    pub fn find(&self, name: &str) -> Option<&HashMap<String, PString>> {
+    pub fn find(&self, name: &str) -> Option<&HashMap<String, PValue>> {
         self.map.get(name)
     }
 
-    pub fn current(&self) -> Option<&HashMap<String, PString>> {
+    pub fn current(&self) -> Option<&HashMap<String, PValue>> {
         match self.stack.last() {
             Some(name) => self.map.get(name),
             None => self.map.get(GLOBAL_CONTEXT),
         }
     }
 
-    pub fn current_mut(&mut self) -> Option<&mut HashMap<String, PString>> {
+    pub fn current_mut(&mut self) -> Option<&mut HashMap<String, PValue>> {
         match self.stack.last() {
             Some(name) => self.map.get_mut(name),
             None => self.map.get_mut(GLOBAL_CONTEXT),
-- 
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