Struct ReturnExpr 

pub struct ReturnExpr {
    pub return_token: _Return,
    pub value: Option<Box<Expr>>,
}

A typed Macaulay2 return_expr syntax node.

Fields

return_token: _Return

The return_token child of this syntax node.

value: Option<Box<Expr>>

The value child of this syntax node.

Implementations

impl ReturnExpr

pub fn new(return_token: _Return, value: Option<Expr>) -> Self

Creates this node from its typed children.

Trait Implementations

impl Debug for ReturnExpr

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

Formats the value using the given formatter.

impl From<ReturnExpr> for Component

fn from(value: ReturnExpr) -> Self

Converts to this type from the input type.

impl From<ReturnExpr> for ControlFlow

fn from(value: ReturnExpr) -> Self

Converts to this type from the input type.

impl From<ReturnExpr> for Expr

fn from(value: ReturnExpr) -> Self

Converts to this type from the input type.

impl Lex for ReturnExpr

fn to_tokens(&self, output: &mut TokenStream)

Appends this value’s token trees to output.

fn to_token_stream(&self) -> TokenStream

Emits this value into a fresh token stream.

fn to_m2(&self) -> String

Renders this value as normalized Macaulay2 source.

impl<N> Migrate<N> for ReturnExpr

where N: ExternalCstNode,

fn matches(node: &N) -> bool

Reports whether node can migrate this typed value.

fn migrate(node: N) -> Result<Self, MigrateError>

Converts a matching external node into typed syntax.

impl PrettyTree for ReturnExpr

fn pretty_tree(&self) -> PrettyNode

Builds the presentation node for this syntax value.

impl Spanned for ReturnExpr

fn try_span(&self) -> Option<Span>

Returns the smallest span covering this value, when its constituents share one source snapshot.

fn span(&self) -> Span

Returns the smallest span covering this value.

fn expect_span(&self) -> Span

Returns this value’s span when one source snapshot covers it.