From 6ec689b3762a1f8090d97045a76d8d7282dd1fe3 Mon Sep 17 00:00:00 2001
From: Anthony Ramine <n.oxyde@gmail.com>
Date: Sun, 11 Sep 2016 13:26:21 +0200
Subject: x-www-form-urlencoded meets Serde

---
 src/de.rs | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 src/de.rs

(limited to 'src/de.rs')

diff --git a/src/de.rs b/src/de.rs
new file mode 100644
index 0000000..ec84ff2
--- /dev/null
+++ b/src/de.rs
@@ -0,0 +1,90 @@
+//! Deserialization support for the `application/x-www-form-urlencoded` format.
+
+use serde::de;
+use serde::de::value::MapDeserializer;
+use std::borrow::Cow;
+use std::marker::PhantomData;
+use url::form_urlencoded::Parse;
+
+pub use serde::de::value::Error;
+
+/// A deserializer for the `application/x-www-form-urlencoded` format.
+///
+/// * Supported top-level outputs are structs, maps and sequences of pairs,
+///   with or without a given length.
+///
+/// * Main `deserialize` methods defers to `deserialize_map`.
+///
+/// * Everything else but `deserialize_seq` and `deserialize_seq_fixed_size`
+///   defers to `deserialize`.
+pub struct Deserializer<'a, T> {
+    deserializer: MapDeserializer<Parse<'a>, Cow<'a, str>, Cow<'a, str>, Error>,
+    marker: PhantomData<T>,
+}
+
+impl<'a, T> de::Deserializer for Deserializer<'a, T>
+{
+    type Error = Error;
+
+    fn deserialize<V>(
+            &mut self, visitor: V)
+            -> Result<V::Value, Self::Error>
+        where V: de::Visitor,
+    {
+        self.deserialize_map(visitor)
+    }
+
+    fn deserialize_map<V>(
+            &mut self, mut visitor: V)
+            -> Result<V::Value, Self::Error>
+        where V: de::Visitor,
+    {
+        visitor.visit_map(&mut self.deserializer)
+    }
+
+    fn deserialize_seq<V>(
+            &mut self, mut visitor: V)
+            -> Result<V::Value, Self::Error>
+        where V: de::Visitor,
+    {
+        visitor.visit_seq(&mut self.deserializer)
+    }
+
+    fn deserialize_seq_fixed_size<V>(
+            &mut self, _len: usize, mut visitor: V)
+            -> Result<V::Value, Self::Error>
+        where V: de::Visitor
+    {
+        visitor.visit_seq(&mut self.deserializer)
+    }
+
+    forward_to_deserialize! {
+        bool
+        usize
+        u8
+        u16
+        u32
+        u64
+        isize
+        i8
+        i16
+        i32
+        i64
+        f32
+        f64
+        char
+        str
+        string
+        unit
+        option
+        bytes
+        unit_struct
+        newtype_struct
+        tuple_struct
+        struct
+        struct_field
+        tuple
+        enum
+        ignored_any
+    }
+}
-- 
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