Struct promql_parser::parser::ast::BinaryExpr

pub struct BinaryExpr {
    pub op: TokenType,
    pub lhs: Box<Expr>,
    pub rhs: Box<Expr>,
    pub modifier: Option<BinModifier>,
}

Grammar:

<vector expr> <bin-op> ignoring(<label list>) group_left(<label list>) <vector expr>
<vector expr> <bin-op> ignoring(<label list>) group_right(<label list>) <vector expr>
<vector expr> <bin-op> on(<label list>) group_left(<label list>) <vector expr>
<vector expr> <bin-op> on(<label list>) group_right(<label list>) <vector expr>

Fields

op: TokenType

The operation of the expression.

lhs: Box<Expr>

The operands on the left sides of the operator.

rhs: Box<Expr>

The operands on the right sides of the operator.

modifier: Option<BinModifier>

Implementations

impl BinaryExpr

pub fn is_matching_on(&self) -> bool

pub fn is_matching_labels_not_empty(&self) -> bool

pub fn return_bool(&self) -> bool

pub fn is_labels_joint(&self) -> bool

check if labels of card and matching are joint

pub fn intersect_labels(&self) -> Option<Vec<String>>

intersect labels of card and matching

Trait Implementations

impl Clone for BinaryExpr

fn clone(&self) -> BinaryExpr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BinaryExpr

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

Formats the value using the given formatter.

impl Display for BinaryExpr

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

Formats the value using the given formatter.

impl PartialEq<BinaryExpr> for BinaryExpr

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

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

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.

impl Prettier for BinaryExpr

fn format(&self, level: usize, max: usize) -> String

override format if expr needs to be splited into multiple lines

fn pretty(&self, level: usize, max: usize) -> String

max param is short for max_characters_per_line.

fn needs_split(&self, max: usize) -> bool

override needs_split to return false, in order not to split multiple lines

impl Eq for BinaryExpr

impl StructuralEq for BinaryExpr

impl StructuralPartialEq for BinaryExpr