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simplify deserializing a value from a primitive

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Erick Tryzelaar
2014-08-03 12:34:57 -07:00
parent dbc1cbcbfb
commit 499638eccd
2 changed files with 22 additions and 30 deletions
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src/de.rs
+16
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@@ -102,6 +102,22 @@ pub trait Deserializer<E>: Iterator<Result<Token, E>> {
U64(x) => to_result!(num::cast(x), self.syntax_error()),
F32(x) => to_result!(num::cast(x), self.syntax_error()),
F64(x) => to_result!(num::cast(x), self.syntax_error()),
#[inline]
fn expect_from_primitive<T: FromPrimitive>(&mut self, token: Token) -> Result<T, E> {
match token {
Int(x) => to_result!(num::from_int(x), self.syntax_error()),
I8(x) => to_result!(num::from_i8(x), self.syntax_error()),
I16(x) => to_result!(num::from_i16(x), self.syntax_error()),
I32(x) => to_result!(num::from_i32(x), self.syntax_error()),
I64(x) => to_result!(num::from_i64(x), self.syntax_error()),
Uint(x) => to_result!(num::from_uint(x), self.syntax_error()),
U8(x) => to_result!(num::from_u8(x), self.syntax_error()),
U16(x) => to_result!(num::from_u16(x), self.syntax_error()),
U32(x) => to_result!(num::from_u32(x), self.syntax_error()),
U64(x) => to_result!(num::from_u64(x), self.syntax_error()),
F32(x) => to_result!(num::from_f32(x), self.syntax_error()),
F64(x) => to_result!(num::from_f64(x), self.syntax_error()),
_ => self.syntax_error(),
}
}