From fc64e11cdd35051a2ea87237f548ae0497a2f7f9 Mon Sep 17 00:00:00 2001
From: Max Audron <audron@cocaine.farm>
Date: Wed, 29 Apr 2020 00:00:44 +0200
Subject: refactor everything

---
 src/primitive/variantmap.rs | 58 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 src/primitive/variantmap.rs

(limited to 'src/primitive/variantmap.rs')

diff --git a/src/primitive/variantmap.rs b/src/primitive/variantmap.rs
new file mode 100644
index 0000000..4f017f3
--- /dev/null
+++ b/src/primitive/variantmap.rs
@@ -0,0 +1,58 @@
+use std::collections::HashMap;
+use std::{convert::TryInto, vec::Vec};
+
+use failure::Error;
+
+use log::trace;
+
+use crate::Deserialize;
+use crate::Serialize;
+
+use crate::primitive::Variant;
+use crate::util;
+
+extern crate bytes;
+
+/// VariantMaps are represented as a HashMap with String as key and Variant as value
+///
+/// They are serialized as the amount of keys as an i32 then for each entry a String and a Variant.
+pub type VariantMap = HashMap<String, Variant>;
+
+impl Serialize for VariantMap {
+    fn serialize<'a>(&'a self) -> Result<Vec<u8>, Error> {
+        let mut res: Vec<u8> = Vec::new();
+
+        for (k, v) in self {
+            res.extend(k.serialize()?);
+            res.extend(v.serialize()?);
+        }
+
+        let len: i32 = self.len().try_into()?;
+        util::insert_bytes(0, &mut res, &mut len.to_be_bytes());
+
+        return Ok(res);
+    }
+}
+
+impl Deserialize for VariantMap {
+    fn parse(b: &[u8]) -> Result<(usize, Self), Error> {
+        let (_, len) = i32::parse(&b[0..4])?;
+        trace!(target: "primitive::VariantMap", "Parsing VariantMap with {:?} elements", len);
+
+        let mut pos: usize = 4;
+        let mut map = VariantMap::new();
+        for _ in 0..len {
+            trace!(target: "primitive::VariantMap", "Parsing entry name");
+            let (nlen, name) = String::parse(&b[pos..])?;
+            pos += nlen;
+
+            trace!(target: "primitive::VariantMap", "Parsing entry: {:?} with len {:?}", name, &b[(pos)..(pos + 4)]);
+            let (vlen, value) = Variant::parse(&b[(pos)..])?;
+            pos += vlen;
+
+            map.insert(name, value);
+        }
+
+        return Ok((pos, map));
+    }
+}
-- 
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