Trait TypeInfo

pub trait TypeInfo:
    Debug
    + Display
    + Clone
    + PartialEq
    + Send
    + Sync {
    // Required methods
    fn is_null(&self) -> bool;
    fn name(&self) -> &str;

    // Provided method
    fn type_compatible(&self, other: &Self) -> bool
       where Self: Sized { ... }
}

Provides information about a SQL type for the database driver.

Required Methods

fn is_null(&self) -> bool

fn name(&self) -> &str

Returns the database system name of the type. Length specifiers should not be included. Common type names are VARCHAR, TEXT, or INT. Type names should be uppercase. They should be a rough approximation of how they are written in SQL in the given database.

Provided Methods

fn type_compatible(&self, other: &Self) -> bool

where Self: Sized,

Return true if self and other represent mutually compatible types.

Defaults to self == other.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl TypeInfo for AnyTypeInfo

impl TypeInfo for MySqlTypeInfo

impl TypeInfo for PgTypeInfo

impl TypeInfo for SqliteTypeInfo