Struct spanner_rs::StructType

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pub struct StructType(_);

Expand description

The Cloud Spanner Struct type which is composed of optionally named fields and their data type.

Implementations

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impl StructType

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pub fn new(fields: Vec<(&str, Type)>) -> Self

Creates a new StructType with the provided fields.

Note that Cloud Spanner allows “unnamed” fields. If a provided field name is the empty string, it will be converted to a None in the resulting StructType.

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pub fn fields(&self) -> &Vec<(Option<String>, Type)>

Returns a reference to this struct’s fields.

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pub fn field_names(&self) -> impl Iterator<Item = &Option<String>>

Returns an iterator over the names of this struct’s fields.

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pub fn types(&self) -> impl Iterator<Item = &Type>

Returns an iterator over the types of this struct’s fields.

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pub fn field_index(&self, field_name: &str) -> Option<usize>

Returns the index of the provided field name. Returns None if no field matches the provided name. Note that this function ignores unnamed fields.

Trait Implementations

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impl Clone for StructType

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fn clone(&self) -> StructType

Returns a copy of the value. Read more

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const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for StructType

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl Default for StructType

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fn default() -> StructType

Returns the “default value” for a type. Read more

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impl PartialEq<StructType> for StructType

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fn eq(&self, other: &StructType) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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const fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

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impl TryFrom<&StructType> for StructType

type Error = Error

The type returned in the event of a conversion error.

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fn try_from(value: &StructType) -> Result<Self, Self::Error>

Performs the conversion.

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impl TryFrom<StructType> for StructType

type Error = Error

The type returned in the event of a conversion error.

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fn try_from(value: StructType) -> Result<Self, Self::Error>

Performs the conversion.

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impl StructuralPartialEq for StructType

Auto Trait Implementations

impl RefUnwindSafe for StructType

impl Send for StructType

impl Sync for StructType

impl Unpin for StructType

impl UnwindSafe for StructType

Blanket Implementations

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impl<T> Any for Twhere
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for Twhere
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request

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impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

impl<V, T> VZip<V> for Twhere
V: MultiLane<T>,

fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Struct spanner_rs::StructType

Implementations

impl StructType

pub fn new(fields: Vec<(&str, Type)>) -> Self

pub fn fields(&self) -> &Vec<(Option<String>, Type)>

pub fn field_names(&self) -> impl Iterator<Item = &Option<String>>

pub fn types(&self) -> impl Iterator<Item = &Type>

pub fn field_index(&self, field_name: &str) -> Option<usize>

Trait Implementations

impl Clone for StructType

fn clone(&self) -> StructType

const fn clone_from(&mut self, source: &Self)

impl Debug for StructType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Default for StructType

fn default() -> StructType

impl PartialEq<StructType> for StructType

fn eq(&self, other: &StructType) -> bool

const fn ne(&self, other: &Rhs) -> bool

impl TryFrom<&StructType> for StructType

type Error = Error

fn try_from(value: &StructType) -> Result<Self, Self::Error>

impl TryFrom<StructType> for StructType

type Error = Error

fn try_from(value: StructType) -> Result<Self, Self::Error>

impl StructuralPartialEq for StructType

Auto Trait Implementations

impl RefUnwindSafe for StructType

impl Send for StructType

impl Sync for StructType

impl Unpin for StructType

impl UnwindSafe for StructType

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> DynClone for Twhere T: Clone,

fn __clone_box(&self, Private) -> *mut ()

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> IntoRequest<T> for T

fn into_request(self) -> Request<T>

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>

impl<T> Any for Twhere
T: 'static + ?Sized,

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<T> DynClone for Twhere
T: Clone,

impl<T, U> Into<U> for Twhere
U: From<T>,

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

impl<V, T> VZip<V> for Twhere
V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where
S: Into<Dispatch>,