Enum LineageColumn

pub enum LineageColumn {
    Single {
        name: Option<Ident>,
        target_id: usize,
        target_name: Option<String>,
    },
    All {
        input_id: usize,
        except: HashSet<String>,
    },
}

Variants

Single

Fields

name: Option<Ident>

target_id: usize

target_name: Option<String>

All

All columns (including unknown ones) from an input (i.e. foo_table.*)

Fields

input_id: usize

except: HashSet<String>

Implementations

impl LineageColumn

pub fn is_single(&self) -> bool

Returns true if this is a LineageColumn::Single, otherwise false

pub fn as_single_mut( &mut self, ) -> Option<(&mut Option<Ident>, &mut usize, &mut Option<String>)>

Optionally returns mutable references to the inner fields if this is a LineageColumn::Single, otherwise None

pub fn as_single(&self) -> Option<(&Option<Ident>, &usize, &Option<String>)>

Optionally returns references to the inner fields if this is a LineageColumn::Single, otherwise None

pub fn into_single( self, ) -> Result<(Option<Ident>, usize, Option<String>), LineageColumn>

Returns the inner fields if this is a LineageColumn::Single, otherwise returns back the enum in the Err case of the result

pub fn is_all(&self) -> bool

Returns true if this is a LineageColumn::All, otherwise false

pub fn as_all_mut(&mut self) -> Option<(&mut usize, &mut HashSet<String>)>

Optionally returns mutable references to the inner fields if this is a LineageColumn::All, otherwise None

pub fn as_all(&self) -> Option<(&usize, &HashSet<String>)>

Optionally returns references to the inner fields if this is a LineageColumn::All, otherwise None

pub fn into_all(self) -> Result<(usize, HashSet<String>), LineageColumn>

Returns the inner fields if this is a LineageColumn::All, otherwise returns back the enum in the Err case of the result

Trait Implementations

impl Clone for LineageColumn

fn clone(&self) -> LineageColumn

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LineageColumn

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LineageColumn

fn deserialize<__D>( __deserializer: __D, ) -> Result<LineageColumn, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for LineageColumn

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for LineageColumn

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for LineageColumn

impl StructuralPartialEq for LineageColumn