Struct prql_compiler::internals::Node

pub struct Node {
    pub item: Item,
    pub span: Option<Span>,
    pub declared_at: Option<usize>,
    pub ty: Ty,
    pub is_complex: bool,
}

Fields

item: Item

span: Option<Span>

declared_at: Option<usize>

ty: Ty

is_complex: bool

Is true when containing window functions

Implementations

impl Node

pub fn new_ident<S: ToString>(name: S, declared_at: usize) -> Node

pub fn discard_name(self) -> Result<Node, Error>

Return an error if this is a named expression.

pub fn into_name_and_expr(self) -> (Option<String>, Node)

pub fn coerce_to_vec(self) -> Vec<Node>

Often we don’t care whether a List or single item is passed; e.g. select x vs select [x, y]. This equalizes them both to a vec of Node-s.

pub fn coerce_to_pipeline(self) -> Pipeline

pub fn unwrap<T, F>(self, f: F, expected: &str) -> Result<T, Error> where
    F: FnOnce(Item) -> Result<T, Item>, 

Trait Implementations

impl Clone for Node

fn clone(&self) -> Node

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Node

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Node

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

Deserialize this value from the given Serde deserializer.

impl PartialEq<Node> for Node

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

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

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

This method tests for !=.

impl Serialize for Node

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

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Node