Struct sane::de::Deserializer

pub struct Deserializer<'a> { /* fields omitted */ }

Deserialization implementation for SANE.

Methods

impl<'a> Deserializer<'a>

pub fn new(input: &'a str) -> Deserializer<'a>

Creates a new deserializer which will be deserializing the string provided.

pub fn end(&mut self) -> Result<(), Error>

The Deserializer::end method should be called after a value has been fully deserialized. This allows the Deserializer to validate that the input stream is at the end or that it only has trailing whitespace/comments.

pub fn set_require_newline_after_table(&mut self, require: bool)

Historical versions of sane-rs accidentally allowed a newline after a table definition, but the SANE spec requires a newline after a table definition header.

This option can be set to false (the default is true) to emulate this behavior for backwards compatibility with older sane-rs versions.

pub fn set_allow_duplicate_after_longer_table(&mut self, allow: bool)

Historical versions of sane-rs accidentally allowed a duplicate table header after a longer table header was previously defined. This is invalid according to the SANE spec, however.

This option can be set to true (the default is false) to emulate this behavior for backwards compatibility with older sane-rs versions.

Trait Implementations

impl<'de, 'b> Deserializer<'de> for &'b mut Deserializer<'de>

type Error = Error

The error type that can be returned if some error occurs during deserialization.

fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Error> where
    V: Visitor<'de>, 

Require the Deserializer to figure out how to drive the visitor based on what data type is in the input.

fn deserialize_enum<V>(
    self,
    _name: &'static str,
    _variants: &'static [&'static str],
    visitor: V
) -> Result<V::Value, Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an enum value with a particular name and possible variants.

fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a bool value.

fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a u8 value.

fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a u16 value.

fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a u32 value.

fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a u64 value.

fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an i8 value.

fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an i16 value.

fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an i32 value.

fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an i64 value.

fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a f32 value.

fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a f64 value.

fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a char value.

fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a string value and does not benefit from taking ownership of buffered data owned by the Deserializer.

fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a string value and would benefit from taking ownership of buffered data owned by the Deserializer.

fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a sequence of values.

fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a byte array and does not benefit from taking ownership of buffered data owned by the Deserializer.

fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a byte array and would benefit from taking ownership of buffered data owned by the Deserializer.

fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a map of key-value pairs.

fn deserialize_struct<V>(
    self,
    name: &'static str,
    fields: &'static [&'static str],
    visitor: V
) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a struct with a particular name and fields.

fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a unit value.

fn deserialize_newtype_struct<V>(
    self,
    name: &'static str,
    visitor: V
) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a newtype struct with a particular name.

fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type needs to deserialize a value whose type doesn't matter because it is ignored.

fn deserialize_unit_struct<V>(
    self,
    name: &'static str,
    visitor: V
) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a unit struct with a particular name.

fn deserialize_tuple_struct<V>(
    self,
    name: &'static str,
    len: usize,
    visitor: V
) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a tuple struct with a particular name and number of fields.

fn deserialize_tuple<V>(
    self,
    len: usize,
    visitor: V
) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting a sequence of values and knows how many values there are without looking at the serialized data.

fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an optional value.

fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting the name of a struct field or the discriminant of an enum variant.

fn deserialize_i128<V>(
    self,
    visitor: V
) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an i128 value.

fn deserialize_u128<V>(
    self,
    visitor: V
) -> Result<<V as Visitor<'de>>::Value, Self::Error> where
    V: Visitor<'de>, 

Hint that the Deserialize type is expecting an u128 value.

fn is_human_readable(&self) -> bool

Determine whether Deserialize implementations should expect to deserialize their human-readable form.