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-rw-r--r--src/decoder/mod.rs6
-rw-r--r--src/decoder/serde.rs198
2 files changed, 104 insertions, 100 deletions
diff --git a/src/decoder/mod.rs b/src/decoder/mod.rs
index 6180c13..a596280 100644
--- a/src/decoder/mod.rs
+++ b/src/decoder/mod.rs
@@ -57,6 +57,8 @@ pub enum DecodeErrorKind {
CustomError(String),
/// The end of the TOML input was reached too soon
EndOfStream,
+ /// Produced by serde ...
+ InvalidType(&'static str),
}
/// Decodes a TOML value into a decodable type.
@@ -197,6 +199,9 @@ impl fmt::Display for DecodeError {
EndOfStream => {
write!(f, "end of stream")
}
+ InvalidType(s) => {
+ write!(f, "invalid type: {}", s)
+ }
CustomError(ref s) => {
write!(f, "custom error: {}", s)
}
@@ -223,6 +228,7 @@ impl error::Error for DecodeError {
NilTooLong => "nonzero length string representing nil",
SyntaxError => "syntax error",
EndOfStream => "end of stream",
+ InvalidType(..) => "invalid type",
CustomError(..) => "custom error",
}
}
diff --git a/src/decoder/serde.rs b/src/decoder/serde.rs
index 493b8fd..099a65b 100644
--- a/src/decoder/serde.rs
+++ b/src/decoder/serde.rs
@@ -3,29 +3,6 @@ use Value;
use super::{Decoder, DecodeError, DecodeErrorKind};
use std::collections::BTreeMap;
-fn se2toml(err: de::value::Error, ty: &'static str) -> DecodeError {
- match err {
- 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::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;
@@ -34,21 +11,11 @@ impl de::Deserializer for Decoder {
where V: de::Visitor
{
match self.toml.take() {
- Some(Value::String(s)) => {
- visitor.visit_string(s).map_err(|e| se2toml(e, "string"))
- }
- Some(Value::Integer(i)) => {
- visitor.visit_i64(i).map_err(|e| se2toml(e, "integer"))
- }
- Some(Value::Float(f)) => {
- visitor.visit_f64(f).map_err(|e| se2toml(e, "float"))
- }
- Some(Value::Boolean(b)) => {
- visitor.visit_bool(b).map_err(|e| se2toml(e, "bool"))
- }
- Some(Value::Datetime(s)) => {
- visitor.visit_string(s).map_err(|e| se2toml(e, "date"))
- }
+ Some(Value::String(s)) => visitor.visit_string(s),
+ Some(Value::Integer(i)) => visitor.visit_i64(i),
+ Some(Value::Float(f)) => visitor.visit_f64(f),
+ Some(Value::Boolean(b)) => visitor.visit_bool(b),
+ Some(Value::Datetime(s)) => visitor.visit_string(s),
Some(Value::Array(a)) => {
let len = a.len();
let iter = a.into_iter();
@@ -62,34 +29,18 @@ impl de::Deserializer for Decoder {
value: None,
})
}
- None => Err(de::Error::end_of_stream()),
+ None => Err(self.err(DecodeErrorKind::EndOfStream)),
}
}
- fn deserialize_isize<V>(&mut self, visitor: V)
- -> Result<V::Value, DecodeError>
+ fn deserialize_bool<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.deserialize_i64(visitor)
- }
-
- fn deserialize_i8<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
- where V: de::Visitor
- {
- self.deserialize_i64(visitor)
- }
- fn deserialize_i16<V>(&mut self, visitor: V)
- -> Result<V::Value, DecodeError>
- where V: de::Visitor
- {
- self.deserialize_i64(visitor)
- }
-
- fn deserialize_i32<V>(&mut self, visitor: V)
- -> Result<V::Value, DecodeError>
- where V: de::Visitor
- {
- self.deserialize_i64(visitor)
+ match self.toml.take() {
+ Some(Value::Boolean(b)) => visitor.visit_bool(b),
+ ref found => Err(self.mismatch("bool", found)),
+ }
}
fn deserialize_i64<V>(&mut self, mut visitor: V)
@@ -97,61 +48,46 @@ impl de::Deserializer for Decoder {
where V: de::Visitor
{
match self.toml.take() {
- Some(Value::Integer(f)) => {
- visitor.visit_i64(f).map_err(|e| se2toml(e, "integer"))
- }
+ Some(Value::Integer(f)) => visitor.visit_i64(f),
ref found => Err(self.mismatch("integer", found)),
}
}
- fn deserialize_usize<V>(&mut self, visitor: V)
- -> Result<V::Value, DecodeError>
- where V: de::Visitor
- {
- self.deserialize_i64(visitor)
- }
-
- fn deserialize_u8<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
- where V: de::Visitor
- {
- self.deserialize_i64(visitor)
- }
- fn deserialize_u16<V>(&mut self, visitor: V) -> Result<V::Value, DecodeError>
+ fn deserialize_u64<V>(&mut self, v: V) -> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.deserialize_i64(visitor)
+ self.deserialize_i64(v)
}
- fn deserialize_u32<V>(&mut self, visitor: V)
- -> Result<V::Value, DecodeError>
- where V: de::Visitor
- {
- self.deserialize_i64(visitor)
- }
-
- fn deserialize_u64<V>(&mut self, visitor: V)
+ fn deserialize_f64<V>(&mut self, mut visitor: V)
-> Result<V::Value, DecodeError>
where V: de::Visitor
{
- self.deserialize_i64(visitor)
+ match self.toml.take() {
+ Some(Value::Float(f)) => visitor.visit_f64(f),
+ ref found => Err(self.mismatch("float", found)),
+ }
}
- fn deserialize_f32<V>(&mut self, visitor: V)
- -> Result<V::Value, DecodeError>
- where V: de::Visitor
+ fn deserialize_str<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, Self::Error>
+ where V: de::Visitor,
{
- self.deserialize_f64(visitor)
+ match self.toml.take() {
+ Some(Value::String(s)) => visitor.visit_string(s),
+ ref found => Err(self.mismatch("string", found)),
+ }
}
- fn deserialize_f64<V>(&mut self, mut visitor: V)
- -> Result<V::Value, DecodeError>
+ fn deserialize_char<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
where V: de::Visitor
{
match self.toml.take() {
- Some(Value::Float(f)) => {
- visitor.visit_f64(f).map_err(|e| se2toml(e, "float"))
+ Some(Value::String(ref s)) if s.chars().count() == 1 => {
+ visitor.visit_char(s.chars().next().unwrap())
}
- ref found => Err(self.mismatch("float", found)),
+ ref found => return Err(self.mismatch("string", found)),
}
}
@@ -172,13 +108,29 @@ impl de::Deserializer for Decoder {
{
if self.toml.is_none() {
let iter = None::<i32>.into_iter();
- let e = visitor.visit_seq(de::value::SeqDeserializer::new(iter, 0));
- e.map_err(|e| se2toml(e, "array"))
+ visitor.visit_seq(de::value::SeqDeserializer::new(iter, 0))
} else {
self.deserialize(visitor)
}
}
+ fn deserialize_map<V>(&mut self, mut visitor: V)
+ -> Result<V::Value, DecodeError>
+ where V: de::Visitor,
+ {
+ match self.toml.take() {
+ Some(Value::Table(t)) => {
+ visitor.visit_map(MapVisitor {
+ iter: t.into_iter(),
+ de: self,
+ key: None,
+ value: None,
+ })
+ }
+ ref found => Err(self.mismatch("table", found)),
+ }
+ }
+
fn deserialize_enum<V>(&mut self,
_enum: &str,
variants: &[&str],
@@ -238,7 +190,7 @@ impl de::VariantVisitor for VariantVisitor {
let mut de = self.variant.into_deserializer();
- de::Deserialize::deserialize(&mut de).map_err(|e| se2toml(e, "variant"))
+ de::Deserialize::deserialize(&mut de)
}
fn visit_unit(&mut self) -> Result<(), DecodeError> {
@@ -364,6 +316,45 @@ impl de::Error for DecodeError {
kind: DecodeErrorKind::UnknownField,
}
}
+ fn invalid_type(ty: de::Type) -> Self {
+ DecodeError {
+ field: None,
+ kind: DecodeErrorKind::InvalidType(match ty {
+ de::Type::Bool => "bool",
+ de::Type::Usize |
+ de::Type::U8 |
+ de::Type::U16 |
+ de::Type::U32 |
+ de::Type::U64 |
+ de::Type::Isize |
+ de::Type::I8 |
+ de::Type::I16 |
+ de::Type::I32 |
+ de::Type::I64 => "integer",
+ de::Type::F32 |
+ de::Type::F64 => "float",
+ de::Type::Char |
+ de::Type::Str |
+ de::Type::String => "string",
+ de::Type::Seq => "array",
+ de::Type::Struct |
+ de::Type::Map => "table",
+ de::Type::Unit => "Unit",
+ de::Type::Option => "Option",
+ de::Type::UnitStruct => "UnitStruct",
+ de::Type::NewtypeStruct => "NewtypeStruct",
+ de::Type::TupleStruct => "TupleStruct",
+ de::Type::FieldName => "FieldName",
+ de::Type::Tuple => "Tuple",
+ de::Type::Enum => "Enum",
+ de::Type::VariantName => "VariantName",
+ de::Type::StructVariant => "StructVariant",
+ de::Type::TupleVariant => "TupleVariant",
+ de::Type::UnitVariant => "UnitVariant",
+ de::Type::Bytes => "Bytes",
+ })
+ }
+ }
}
struct MapVisitor<'a, I> {
@@ -444,6 +435,13 @@ impl<'a, I> de::MapVisitor for MapVisitor<'a, I>
}
fn end(&mut self) -> Result<(), DecodeError> {
+ if let Some(v) = self.value.take() {
+ self.put_value_back(v);
+ }
+ while let Some((k, v)) = self.iter.next() {
+ self.key = Some(k);
+ self.put_value_back(v);
+ }
Ok(())
}
@@ -452,7 +450,7 @@ impl<'a, I> de::MapVisitor for MapVisitor<'a, I>
// See if the type can deserialize from a unit.
match de::Deserialize::deserialize(&mut UnitDeserializer) {
Err(DecodeError {
- kind: DecodeErrorKind::SyntaxError,
+ kind: DecodeErrorKind::InvalidType(..),
field,
}) => Err(DecodeError {
field: field.or(Some(field_name.to_string())),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 00:02:30 +0000