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Constrain optional fields

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This commit is contained in:
Richard Feldman 2020-07-18 14:51:18 -04:00
parent 1bdfe578bd
commit 7330e82f75
5 changed files with 39 additions and 10 deletions
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3
compiler/can/src/pattern.rs
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@ -1,4 +1,5 @@
use crate::env::Env;
use crate::expr::Expr;
use crate::num::{finish_parsing_base, finish_parsing_float, finish_parsing_int};
use crate::scope::Scope;
use roc_module::ident::{Ident, Lowercase, TagName};
@ -50,7 +51,7 @@ pub struct RecordDestruct {
#[derive(Clone, Debug, PartialEq)]
pub enum DestructType {
Required,
Optional(Variable),
Optional(Variable, Located<Expr>),
Guard(Variable, Located<Pattern>),
}