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std: add some better failure msgs to json

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This commit is contained in:
Erick Tryzelaar
2013-03-26 23:15:14 -07:00
parent 83e831bc22
commit c317d3f6fa
1 changed files with 3 additions and 3 deletions
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6
src/libstd/json.rs
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@@ -827,7 +827,7 @@ impl<'self> serialize::Decoder for Decoder<'self> {
debug!("read_owned_str"); debug!("read_owned_str");
match *self.pop() { match *self.pop() {
String(ref s) => copy *s, String(ref s) => copy *s,
_ => fail!(~"not a string") ref json => fail!(fmt!("not a string: %?", *json))
} }
} }
@@ -835,7 +835,7 @@ impl<'self> serialize::Decoder for Decoder<'self> {
debug!("read_managed_str"); debug!("read_managed_str");
match *self.pop() { match *self.pop() {
String(ref s) => s.to_managed(), String(ref s) => s.to_managed(),
_ => fail!(~"not a string") ref json => fail!(fmt!("not a string: %?", *json))
} }
} }
@@ -872,7 +872,7 @@ impl<'self> serialize::Decoder for Decoder<'self> {
let name = match *self.peek() { let name = match *self.peek() {
String(ref s) => s, String(ref s) => s,
List([String(ref s), .. _]) => s, List([String(ref s), .. _]) => s,
json => fail!(fmt!("invalid variant: %?", json)), ref json => fail!(fmt!("invalid variant: %?", *json)),
}; };
let idx = match vec::position(names, |n| str::eq_slice(*n, *name)) { let idx = match vec::position(names, |n| str::eq_slice(*n, *name)) {
Some(idx) => idx, Some(idx) => idx,