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refactor parse AST to allow multiple if branches

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This commit is contained in:
Folkert 2021-02-23 14:31:48 +01:00
parent c208f500d9
commit 4eea0aff7a
6 changed files with 145 additions and 109 deletions
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5
compiler/parse/src/expr.rs
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@ -325,7 +325,7 @@ pub fn expr_to_pattern<'a>(
| Expr::Closure(_, _)
| Expr::BinOp(_)
| Expr::Defs(_, _)
| Expr::If(_, _, _)
| Expr::If(_, _)
| Expr::When(_, _)
| Expr::MalformedClosure
| Expr::PrecedenceConflict(_, _, _, _)
@ -1281,8 +1281,7 @@ pub fn if_expr<'a>(min_indent: u16) -> impl Parser<'a, Expr<'a>, SyntaxError<'a>
),
|arena: &'a Bump, (condition, (then_branch, else_branch))| {
Expr::If(
&*arena.alloc(condition),
&*arena.alloc(then_branch),
arena.alloc([(condition, then_branch)]),
&*arena.alloc(else_branch),
)
}