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-rw-r--r--src/decoder/mod.rs40
1 files changed, 27 insertions, 13 deletions
diff --git a/src/decoder/mod.rs b/src/decoder/mod.rs
index b223e03..9720528 100644
--- a/src/decoder/mod.rs
+++ b/src/decoder/mod.rs
@@ -1,6 +1,9 @@
use std::error;
use std::fmt;
+
+#[cfg(feature = "rustc-serialize")]
use std::collections::{btree_map, BTreeMap};
+#[cfg(feature = "rustc-serialize")]
use std::iter::Peekable;
use Value;
@@ -19,7 +22,9 @@ pub struct Decoder {
/// whether fields were decoded or not.
pub toml: Option<Value>,
cur_field: Option<String>,
+ #[cfg(feature = "rustc-serialize")]
cur_map: Peekable<btree_map::IntoIter<String, Value>>,
+ #[cfg(feature = "rustc-serialize")]
leftover_map: ::Table,
}
@@ -115,27 +120,36 @@ impl Decoder {
/// This decoder can be passed to the `Decodable` methods or driven
/// manually.
pub fn new(toml: Value) -> Decoder {
+ Decoder::new_empty(Some(toml), None)
+ }
+
+ fn sub_decoder(&self, toml: Option<Value>, field: &str) -> Decoder {
+ let cur_field = if field.is_empty() {
+ self.cur_field.clone()
+ } else {
+ match self.cur_field {
+ None => Some(field.to_string()),
+ Some(ref s) => Some(format!("{}.{}", s, field))
+ }
+ };
+ Decoder::new_empty(toml, cur_field)
+ }
+
+ #[cfg(feature = "rustc-serialize")]
+ fn new_empty(toml: Option<Value>, cur_field: Option<String>) -> Decoder {
Decoder {
- toml: Some(toml),
- cur_field: None,
+ toml: toml,
+ cur_field: cur_field,
leftover_map: BTreeMap::new(),
cur_map: BTreeMap::new().into_iter().peekable(),
}
}
- fn sub_decoder(&self, toml: Option<Value>, field: &str) -> Decoder {
+ #[cfg(not(feature = "rustc-serialize"))]
+ fn new_empty(toml: Option<Value>, cur_field: Option<String>) -> Decoder {
Decoder {
toml: toml,
- cur_field: if field.is_empty() {
- self.cur_field.clone()
- } else {
- match self.cur_field {
- None => Some(field.to_string()),
- Some(ref s) => Some(format!("{}.{}", s, field))
- }
- },
- leftover_map: BTreeMap::new(),
- cur_map: BTreeMap::new().into_iter().peekable(),
+ cur_field: cur_field,
}
}