toasty_core/stmt/
expr_cast.rs

1use super::{Expr, Type};
2
3/// A type cast expression.
4///
5/// Converts an expression's value to a different type.
6///
7/// # Examples
8///
9/// ```text
10/// cast(x, i64)     // cast `x` to `i64`
11/// cast(y, string)  // cast `y` to `string`
12/// ```
13#[derive(Debug, Clone, PartialEq)]
14pub struct ExprCast {
15    /// The expression to cast.
16    pub expr: Box<Expr>,
17
18    /// The target type.
19    pub ty: Type,
20}
21
22impl Expr {
23    /// Creates a type cast expression that converts `expr` to the target type.
24    pub fn cast(expr: impl Into<Self>, ty: impl Into<Type>) -> Self {
25        ExprCast {
26            expr: Box::new(expr.into()),
27            ty: ty.into(),
28        }
29        .into()
30    }
31
32    /// Returns `true` if this expression is a type cast.
33    pub fn is_cast(&self) -> bool {
34        matches!(self, Self::Cast(_))
35    }
36}
37
38impl From<ExprCast> for Expr {
39    fn from(value: ExprCast) -> Self {
40        Self::Cast(value)
41    }
42}
toasty_core/stmt/expr_cast.rs

toasty_core/stmt/
expr_cast.rs
