Enum rune::ast::Pat

pub enum Pat {
    PatIgnore(PatIgnore),
    PatPath(PatPath),
    PatLit(PatLit),
    PatVec(PatVec),
    PatTuple(PatTuple),
    PatObject(PatObject),
    PatBinding(PatBinding),
    PatRest(PatRest),
}

A pattern match.

Variants

PatIgnore(PatIgnore)

An ignored binding _.

PatPath(PatPath)

A variable binding n.

PatLit(PatLit)

A literal pattern. This is represented as an expression.

PatVec(PatVec)

A vector pattern.

PatTuple(PatTuple)

A tuple pattern.

PatObject(PatObject)

An object pattern.

PatBinding(PatBinding)

A binding a: pattern or "foo": pattern.

PatRest(PatRest)

The rest pattern ...

Trait Implementations

impl Clone for Pat

fn clone(&self) -> Pat

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Pat

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

Formats the value using the given formatter.

impl Eq for Pat

impl Parse for Pat

Parsing a block expression.

Examples

use rune::{testing, ast};

testing::roundtrip::<ast::Pat>("()");
testing::roundtrip::<ast::Pat>("42");
testing::roundtrip::<ast::Pat>("-42");
testing::roundtrip::<ast::Pat>("3.1415");
testing::roundtrip::<ast::Pat>("-3.1415");
testing::roundtrip::<ast::Pat>("b'a'");
testing::roundtrip::<ast::Pat>("'a'");
testing::roundtrip::<ast::Pat>("b\"hello world\"");
testing::roundtrip::<ast::Pat>("\"hello world\"");
testing::roundtrip::<ast::Pat>("var");
testing::roundtrip::<ast::Pat>("_");
testing::roundtrip::<ast::Pat>("Foo(n)");

fn parse(p: &mut Parser<'_>) -> Result<Self, ParseError>

Parse the current item from the parser.

impl PartialEq<Pat> for Pat

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

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

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

This method tests for !=.

impl Peek for Pat

fn peek(p: &mut Peeker<'_>) -> bool

Peek the parser for the given token.

impl Spanned for Pat

fn span(&self) -> Span

Get the span of the type.

impl StructuralEq for Pat

impl StructuralPartialEq for Pat

impl ToTokens for Pat

fn to_tokens(&self, context: &MacroContext, stream: &mut TokenStream)

Turn the current item into tokens.