Struct arithmetic_parser::Block

#[non_exhaustive]
pub struct Block<'a, T: Grammar> {
    pub statements: Vec<SpannedStatement<'a, T>>,
    pub return_value: Option<Box<SpannedExpr<'a, T>>>,
}

Block of statements.

A block may end with a return expression, e.g., { x = 1; x }.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

statements: Vec<SpannedStatement<'a, T>>

Statements in the block.

return_value: Option<Box<SpannedExpr<'a, T>>>

The last statement in the block which is returned from the block.

Implementations

impl<'a, T: Grammar> Block<'a, T>

pub fn empty() -> Self

Creates an empty block.

Trait Implementations

impl<'a, T: Grammar> Clone for Block<'a, T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, T: Debug + Grammar> Debug for Block<'a, T>

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

Formats the value using the given formatter.

impl<'a, T> PartialEq<Block<'a, T>> for Block<'a, T>where T: Grammar, T::Lit: PartialEq, T::Type<'a>: PartialEq,

fn eq(&self, other: &Self) -> 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.