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| -rw-r--r-- | src/libextra/json.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/libextra/json.rs b/src/libextra/json.rs index 06b6d0cb29e..3567d5001bd 100644 --- a/src/libextra/json.rs +++ b/src/libextra/json.rs @@ -27,6 +27,7 @@ use std::to_str; use serialize::Encodable; use serialize; use sort::Sort; +use treemap::TreeMap; /// Represents a json value pub enum Json { @@ -1340,6 +1341,16 @@ impl<A:ToJson + Copy> ToJson for HashMap<~str, A> { } } +impl<A:ToJson + Copy> ToJson for TreeMap<~str, A> { + fn to_json(&self) -> Json { + let mut d = HashMap::new(); + for self.iter().advance |(key, value)| { + d.insert(copy *key, value.to_json()); + } + Object(~d) + } +} + impl<A:ToJson> ToJson for Option<A> { fn to_json(&self) -> Json { match *self { |