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use crate::{AsgConvertError, Expression, FromAst, Node, PartialType, Scope, Span, Statement, Type};
use std::sync::{Arc, Weak};
pub struct ReturnStatement {
pub parent: Option<Weak<Statement>>,
pub span: Option<Span>,
pub expression: Arc<Expression>,
}
impl Node for ReturnStatement {
fn span(&self) -> Option<&Span> {
self.span.as_ref()
}
}
impl FromAst<leo_ast::ReturnStatement> for ReturnStatement {
fn from_ast(
scope: &Scope,
statement: &leo_ast::ReturnStatement,
_expected_type: Option<PartialType>,
) -> Result<Self, AsgConvertError> {
let return_type: Option<Type> = scope
.borrow()
.resolve_current_function()
.map(|x| x.output.clone())
.map(Into::into);
Ok(ReturnStatement {
parent: None,
span: Some(statement.span.clone()),
expression: Arc::<Expression>::from_ast(scope, &statement.expression, return_type.map(Into::into))?,
})
}
}
impl Into<leo_ast::ReturnStatement> for &ReturnStatement {
fn into(self) -> leo_ast::ReturnStatement {
leo_ast::ReturnStatement {
expression: self.expression.as_ref().into(),
span: self.span.clone().unwrap_or_default(),
}
}
}