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-rw-r--r--src/decoder/mod.rs6
-rw-r--r--src/decoder/serde.rs106
2 files changed, 70 insertions, 42 deletions
diff --git a/src/decoder/mod.rs b/src/decoder/mod.rs
index 7c444e0..6180c13 100644
--- a/src/decoder/mod.rs
+++ b/src/decoder/mod.rs
@@ -53,6 +53,8 @@ pub enum DecodeErrorKind {
NilTooLong,
/// There was an error with the syntactical structure of the TOML.
SyntaxError,
+ /// A custom error was generated when decoding.
+ CustomError(String),
/// The end of the TOML input was reached too soon
EndOfStream,
}
@@ -195,6 +197,9 @@ impl fmt::Display for DecodeError {
EndOfStream => {
write!(f, "end of stream")
}
+ CustomError(ref s) => {
+ write!(f, "custom error: {}", s)
+ }
});
match self.field {
Some(ref s) => {
@@ -218,6 +223,7 @@ impl error::Error for DecodeError {
NilTooLong => "nonzero length string representing nil",
SyntaxError => "syntax error",
EndOfStream => "end of stream",
+ CustomError(..) => "custom error",
}
}
}
diff --git a/src/decoder/serde.rs b/src/decoder/serde.rs
index 47221b6..493b8fd 100644
--- a/src/decoder/serde.rs
+++ b/src/decoder/serde.rs
@@ -5,27 +5,32 @@ use std::collections::BTreeMap;
fn se2toml(err: de::value::Error, ty: &'static str) -> DecodeError {
match err {
- de::value::Error::SyntaxError => de::Error::syntax(ty),
- de::value::Error::EndOfStreamError => de::Error::end_of_stream(),
- de::value::Error::MissingFieldError(s) => {
+ de::value::Error::Custom(s) => de::Error::custom(s),
+ de::value::Error::EndOfStream => de::Error::end_of_stream(),
+ de::value::Error::MissingField(s) => {
DecodeError {
field: Some(s.to_string()),
kind: DecodeErrorKind::ExpectedField(Some(ty)),
}
},
- de::value::Error::UnknownFieldError(s) => {
+ de::value::Error::UnknownField(s) => {
DecodeError {
field: Some(s.to_string()),
kind: DecodeErrorKind::UnknownField,
}
},
+ de::value::Error::InvalidType(ty) => de::Error::invalid_type(ty),
+ de::value::Error::InvalidLength(l) => de::Error::invalid_length(l),
+ de::value::Error::InvalidValue(v) => de::Error::invalid_value(&v),
+ de::value::Error::UnknownVariant(v) => de::Error::unknown_variant(&v),
}
}
impl de::Deserializer for Decoder {
type Error = DecodeError;
- fn visit<V>(&mut self, mut visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
match self.toml.take() {
@@ -61,30 +66,34 @@ impl de::Deserializer for Decoder {
}
}
- fn visit_isize<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_isize<V>(&mut self, visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_i64(visitor)
+ self.deserialize_i64(visitor)
}
- fn visit_i8<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_i8<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_i64(visitor)
+ self.deserialize_i64(visitor)
}
- fn visit_i16<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_i16<V>(&mut self, visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_i64(visitor)
+ self.deserialize_i64(visitor)
}
- fn visit_i32<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_i32<V>(&mut self, visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_i64(visitor)
+ self.deserialize_i64(visitor)
}
- fn visit_i64<V>(&mut self, mut visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_i64<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
match self.toml.take() {
@@ -95,42 +104,47 @@ impl de::Deserializer for Decoder {
}
}
- fn visit_usize<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_usize<V>(&mut self, visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_i64(visitor)
+ self.deserialize_i64(visitor)
}
- fn visit_u8<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_u8<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_i64(visitor)
+ self.deserialize_i64(visitor)
}
- fn visit_u16<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_u16<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_i64(visitor)
+ self.deserialize_i64(visitor)
}
- fn visit_u32<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_u32<V>(&mut self, visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_i64(visitor)
+ self.deserialize_i64(visitor)
}
- fn visit_u64<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_u64<V>(&mut self, visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_i64(visitor)
+ self.deserialize_i64(visitor)
}
- fn visit_f32<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_f32<V>(&mut self, visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.visit_f64(visitor)
+ self.deserialize_f64(visitor)
}
- fn visit_f64<V>(&mut self, mut visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_f64<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
match self.toml.take() {
@@ -141,7 +155,8 @@ impl de::Deserializer for Decoder {
}
}
- fn visit_option<V>(&mut self, mut visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_option<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
if self.toml.is_none() {
@@ -151,7 +166,8 @@ impl de::Deserializer for Decoder {
}
}
- fn visit_seq<V>(&mut self, mut visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_seq<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor,
{
if self.toml.is_none() {
@@ -159,14 +175,14 @@ impl de::Deserializer for Decoder {
let e = visitor.visit_seq(de::value::SeqDeserializer::new(iter, 0));
e.map_err(|e| se2toml(e, "array"))
} else {
- self.visit(visitor)
+ self.deserialize(visitor)
}
}
- fn visit_enum<V>(&mut self,
- _enum: &str,
- variants: &[&str],
- mut visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_enum<V>(&mut self,
+ _enum: &str,
+ variants: &[&str],
+ mut visitor: V) -> Result<V::Value, DecodeError>
where V: de::EnumVisitor,
{
// When decoding enums, this crate takes the strategy of trying to
@@ -240,7 +256,7 @@ impl de::VariantVisitor for VariantVisitor {
visitor: V) -> Result<V::Value, DecodeError>
where V: de::Visitor,
{
- de::Deserializer::visit(&mut self.de, visitor)
+ de::Deserializer::deserialize(&mut self.de, visitor)
}
fn visit_struct<V>(&mut self,
@@ -248,7 +264,7 @@ impl de::VariantVisitor for VariantVisitor {
visitor: V) -> Result<V::Value, DecodeError>
where V: de::Visitor,
{
- de::Deserializer::visit(&mut self.de, visitor)
+ de::Deserializer::deserialize(&mut self.de, visitor)
}
}
@@ -283,7 +299,8 @@ impl<'a, I> de::Deserializer for SeqDeserializer<'a, I>
{
type Error = DecodeError;
- fn visit<V>(&mut self, mut visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor,
{
visitor.visit_seq(self)
@@ -326,8 +343,11 @@ impl<'a, I> de::SeqVisitor for SeqDeserializer<'a, I>
}
impl de::Error for DecodeError {
- fn syntax(_: &str) -> DecodeError {
- DecodeError { field: None, kind: DecodeErrorKind::SyntaxError }
+ fn custom<T: Into<String>>(msg: T) -> DecodeError {
+ DecodeError {
+ field: None,
+ kind: DecodeErrorKind::CustomError(msg.into()),
+ }
}
fn end_of_stream() -> DecodeError {
DecodeError { field: None, kind: DecodeErrorKind::EndOfStream }
@@ -448,13 +468,15 @@ struct UnitDeserializer;
impl de::Deserializer for UnitDeserializer {
type Error = DecodeError;
- fn visit<V>(&mut self, mut visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor,
{
visitor.visit_unit()
}
- fn visit_option<V>(&mut self, mut visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_option<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor,
{
visitor.visit_none()
@@ -506,6 +528,6 @@ impl de::Deserialize for Value {
}
}
- deserializer.visit(ValueVisitor)
+ deserializer.deserialize(ValueVisitor)
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 00:45:53 +0000