Struct mz_repr::stats2::JsonVisitor

struct JsonVisitor<'de> {
    count: usize,
    nulls: bool,
    bools: Option<(bool, bool)>,
    strings: Option<(Cow<'de, str>, Cow<'de, str>)>,
    ints: Option<(i64, i64)>,
    uints: Option<(u64, u64)>,
    floats: Option<(f64, f64)>,
    numerics: Option<(Numeric, Numeric)>,
    lists: bool,
    maps: bool,
    fields: BTreeMap<Cow<'de, str>, JsonVisitor<'de>>,
}

Fields

count: usize

nulls: bool

bools: Option<(bool, bool)>

strings: Option<(Cow<'de, str>, Cow<'de, str>)>

ints: Option<(i64, i64)>

uints: Option<(u64, u64)>

floats: Option<(f64, f64)>

numerics: Option<(Numeric, Numeric)>

lists: bool

maps: bool

fields: BTreeMap<Cow<'de, str>, JsonVisitor<'de>>

Implementations

impl<'de> JsonVisitor<'de>

pub fn to_stats(self) -> JsonMapElementStats

Trait Implementations

impl<'de> Default for JsonVisitor<'de>

fn default() -> JsonVisitor<'de>

Returns the “default value” for a type.

impl<'a, 'de> DeserializeSeed<'de> for &'a mut JsonVisitor<'de>

type Value = ()

The type produced by using this seed.

fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>

where D: Deserializer<'de>,

Equivalent to the more common Deserialize::deserialize method, except with some initial piece of data (the seed) passed in.

impl<'a, 'de> Visitor<'de> for &'a mut JsonVisitor<'de>

type Value = ()

The value produced by this visitor.

fn expecting(&self, formatter: &mut Formatter<'_>) -> Result

Format a message stating what data this Visitor expects to receive.

fn visit_bool<E>(self, v: bool) -> Result<Self::Value, E>

where E: Error,

The input contains a boolean.

fn visit_i64<E>(self, v: i64) -> Result<Self::Value, E>

where E: Error,

The input contains an i64.

fn visit_u64<E>(self, v: u64) -> Result<(), E>

where E: Error,

The input contains a u64.

fn visit_f64<E>(self, v: f64) -> Result<(), E>

The input contains an f64.

fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>

where E: Error,

The input contains a string. The lifetime of the string is ephemeral and it may be destroyed after this method returns.

fn visit_borrowed_str<E>(self, v: &'de str) -> Result<Self::Value, E>

where E: Error,

The input contains a string that lives at least as long as the Deserializer.

fn visit_unit<E>(self) -> Result<Self::Value, E>

where E: Error,

The input contains a unit ().

fn visit_seq<A>(self, seq: A) -> Result<Self::Value, A::Error>

where A: SeqAccess<'de>,

The input contains a sequence of elements.

fn visit_map<A>(self, map: A) -> Result<Self::Value, A::Error>

where A: MapAccess<'de>,

The input contains a key-value map.

fn visit_i8<E>(self, v: i8) -> Result<Self::Value, E>

where E: Error,

The input contains an i8.

fn visit_i16<E>(self, v: i16) -> Result<Self::Value, E>

where E: Error,

The input contains an i16.

fn visit_i32<E>(self, v: i32) -> Result<Self::Value, E>

where E: Error,

The input contains an i32.

fn visit_i128<E>(self, v: i128) -> Result<Self::Value, E>

where E: Error,

The input contains a i128.

fn visit_u8<E>(self, v: u8) -> Result<Self::Value, E>

where E: Error,

The input contains a u8.

fn visit_u16<E>(self, v: u16) -> Result<Self::Value, E>

where E: Error,

The input contains a u16.

fn visit_u32<E>(self, v: u32) -> Result<Self::Value, E>

where E: Error,

The input contains a u32.

fn visit_u128<E>(self, v: u128) -> Result<Self::Value, E>

where E: Error,

The input contains a u128.

fn visit_f32<E>(self, v: f32) -> Result<Self::Value, E>

where E: Error,

The input contains an f32.

fn visit_char<E>(self, v: char) -> Result<Self::Value, E>

where E: Error,

The input contains a char.

fn visit_string<E>(self, v: String) -> Result<Self::Value, E>

where E: Error,

The input contains a string and ownership of the string is being given to the Visitor.

fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>

where E: Error,

The input contains a byte array. The lifetime of the byte array is ephemeral and it may be destroyed after this method returns.

fn visit_borrowed_bytes<E>(self, v: &'de [u8]) -> Result<Self::Value, E>

where E: Error,

The input contains a byte array that lives at least as long as the Deserializer.

fn visit_byte_buf<E>(self, v: Vec<u8>) -> Result<Self::Value, E>

where E: Error,

The input contains a byte array and ownership of the byte array is being given to the Visitor.

fn visit_none<E>(self) -> Result<Self::Value, E>

where E: Error,

The input contains an optional that is absent.

fn visit_some<D>( self, deserializer: D, ) -> Result<Self::Value, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

The input contains an optional that is present.

fn visit_newtype_struct<D>( self, deserializer: D, ) -> Result<Self::Value, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

The input contains a newtype struct.

fn visit_enum<A>( self, data: A, ) -> Result<Self::Value, <A as EnumAccess<'de>>::Error>

where A: EnumAccess<'de>,

The input contains an enum.