Factor the Token De/Serializer into serde_test

serde_test/src/token.rs

@@ -0,0 +1,60 @@
+#[derive(Clone, PartialEq, Debug)]
+pub enum Token<'a> {
+    Bool(bool),
+    Isize(isize),
+    I8(i8),
+    I16(i16),
+    I32(i32),
+    I64(i64),
+    Usize(usize),
+    U8(u8),
+    U16(u16),
+    U32(u32),
+    U64(u64),
+    F32(f32),
+    F64(f64),
+    Char(char),
+    Str(&'a str),
+    String(String),
+    Bytes(&'a [u8]),
+
+    Option(bool),
+
+    Unit,
+    UnitStruct(&'a str),
+
+    StructNewType(&'a str),
+
+    EnumStart(&'a str),
+    EnumUnit(&'a str, &'a str),
+    EnumNewType(&'a str, &'a str),
+
+    SeqStart(Option<usize>),
+    SeqArrayStart(usize),
+    SeqSep,
+    SeqEnd,
+
+    TupleStart(usize),
+    TupleSep,
+    TupleEnd,
+
+    TupleStructStart(&'a str, Option<usize>),
+    TupleStructSep,
+    TupleStructEnd,
+
+    MapStart(Option<usize>),
+    MapSep,
+    MapEnd,
+
+    StructStart(&'a str, Option<usize>),
+    StructSep,
+    StructEnd,
+
+    EnumSeqStart(&'a str, &'a str, Option<usize>),
+    EnumSeqSep,
+    EnumSeqEnd,
+
+    EnumMapStart(&'a str, &'a str, Option<usize>),
+    EnumMapSep,
+    EnumMapEnd,
+}