Struct spanner_rs::StructType

pub struct StructType(_);

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

Implementations

impl StructType

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.

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

Returns a reference to this struct’s fields.

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

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

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

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

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

impl Clone for StructType

fn clone(&self) -> StructType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StructType

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

Formats the value using the given formatter.

impl Default for StructType

fn default() -> StructType

Returns the “default value” for a type.

impl PartialEq<StructType> for StructType

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

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

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

This method tests for !=.

impl StructuralPartialEq for StructType