Struct If

pub struct If {
    pub condition: Box<Expr>,
    pub then_expr: Box<Expr>,
    pub else_expr: Option<Box<Expr>>,
    pub span: Range<usize>,
    pub if_span: Range<usize>,
    pub else_span: Option<Range<usize>>,
}

An if expression, such as if true 1 else 2.

Fields

condition: Box<Expr>

The condition of the if expression.

then_expr: Box<Expr>

The expression to evaluate if the condition is true.

else_expr: Option<Box<Expr>>

The expression to evaluate if the condition is false.

span: Range<usize>

The region of the source code that this literal was parsed from.

if_span: Range<usize>

The span of the if keyword.

else_span: Option<Range<usize>>

The span of the else keyword.

Implementations

impl If

pub fn span(&self) -> Range<usize>

Returns the span of the if expression.

Trait Implementations

impl Clone for If

fn clone(&self) -> If

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for If

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

Formats the value using the given formatter.

impl Display for If

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

Formats the value using the given formatter.

impl Latex for If

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

Format the value as LaTeX.

fn as_display(&self) -> LatexFormatter<'_, Self>

Wraps the value in a LatexFormatter, which implements Display.

impl<'source> Parse<'source> for If

fn std_parse( input: &mut Parser<'source>, recoverable_errors: &mut Vec<Error>, ) -> Result<Self, Vec<Error>>

Parses a value from the given stream of tokens, advancing the stream past the consumed tokens if parsing is successful.

fn parse(input: &mut Parser<'source>) -> ParseResult<Self>

Parses a value from the given stream of tokens, advancing the stream past the consumed tokens if parsing is successful.

impl PartialEq for If

fn eq(&self, other: &If) -> 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 Eq for If

impl StructuralPartialEq for If