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authorSergio Benitez <sb@sergio.bz>2017-06-18 03:05:22 -0700
committerSergio Benitez <sb@sergio.bz>2017-06-18 03:06:19 -0700
commit46be6329c1c3ee715479396f02e226184c1ba892 (patch)
tree23e77afdb27d01ca74d00004605d247798404072
parent6a3fba6e827b2ace0ea9f914725628064fc37ef5 (diff)
downloadmilf-rs-46be6329c1c3ee715479396f02e226184c1ba892.tar.gz
milf-rs-46be6329c1c3ee715479396f02e226184c1ba892.zip
Add exhaustive From<T> impls for Value
-rw-r--r--src/value.rs72
1 files changed, 44 insertions, 28 deletions
diff --git a/src/value.rs b/src/value.rs
index 83be066..48553fd 100644
--- a/src/value.rs
+++ b/src/value.rs
@@ -1,6 +1,7 @@
//! Definition of a TOML value
-use std::collections::BTreeMap;
+use std::collections::{BTreeMap, HashMap};
+use std::hash::Hash;
use std::fmt;
use std::ops;
use std::str::FromStr;
@@ -219,47 +220,62 @@ impl<I> ops::IndexMut<I> for Value where I: Index {
}
}
-impl From<String> for Value {
- fn from(val: String) -> Value {
- Value::String(val)
+impl<'a> From<&'a str> for Value {
+ #[inline]
+ fn from(val: &'a str) -> Value {
+ Value::String(val.to_string())
}
}
-impl From<i64> for Value {
- fn from(val: i64) -> Value {
- Value::Integer(val)
+impl<V: Into<Value>> From<Vec<V>> for Value {
+ fn from(val: Vec<V>) -> Value {
+ Value::Array(val.into_iter().map(|v| v.into()).collect())
}
}
-impl From<f64> for Value {
- fn from(val: f64) -> Value {
- Value::Float(val)
- }
-}
+impl<S: Into<String>, V: Into<Value>> From<BTreeMap<S, V>> for Value {
+ fn from(val: BTreeMap<S, V>) -> Value {
+ let table = val.into_iter()
+ .map(|(s, v)| (s.into(), v.into()))
+ .collect();
-impl From<bool> for Value {
- fn from(val: bool) -> Value {
- Value::Boolean(val)
+ Value::Table(table)
}
}
-impl From<Array> for Value {
- fn from(val: Array) -> Value {
- Value::Array(val)
- }
-}
+impl<S: Into<String> + Hash + Eq, V: Into<Value>> From<HashMap<S, V>> for Value {
+ fn from(val: HashMap<S, V>) -> Value {
+ let table = val.into_iter()
+ .map(|(s, v)| (s.into(), v.into()))
+ .collect();
-impl From<Table> for Value {
- fn from(val: Table) -> Value {
- Value::Table(val)
+ Value::Table(table)
}
}
-impl From<Datetime> for Value {
- fn from(val: Datetime) -> Value {
- Value::Datetime(val)
- }
-}
+macro_rules! impl_into_value {
+ ($variant:ident : $T:ty) => (impl_into_value!($variant: $T,););
+ ($variant:ident : $T:ty, $($extra:tt)*) => (
+ impl From<$T> for Value {
+ #[inline]
+ fn from(val: $T) -> Value {
+ Value::$variant(val $($extra)*)
+ }
+ }
+ )
+}
+
+impl_into_value!(String: String);
+impl_into_value!(Integer: i64);
+impl_into_value!(Integer: isize, as i64);
+impl_into_value!(Integer: i32, as i64);
+impl_into_value!(Integer: i8, as i64);
+impl_into_value!(Integer: u8, as i64);
+impl_into_value!(Integer: u32, as i64);
+impl_into_value!(Float: f64);
+impl_into_value!(Float: f32, as f64);
+impl_into_value!(Boolean: bool);
+impl_into_value!(Datetime: Datetime);
/// Types that can be used to index a `toml::Value`
///