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author | Nadrieril | 2019-04-06 00:41:31 +0200 |
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committer | Nadrieril | 2019-04-06 00:41:31 +0200 |
commit | 6a675a13fcfafa057c44db84c3b0ca3b344cfdab (patch) | |
tree | 76d0f0fc848887d2945d586b58847575ca31d0da /dhall_core/src/core.rs | |
parent | 627287185118482ceb7132f6dedad7111dccf972 (diff) | |
parent | 305a2ee7dcd3b3f61bf6877312e3c34767e8bc0c (diff) |
Merge branch 'master' into exprf
Diffstat (limited to 'dhall_core/src/core.rs')
-rw-r--r-- | dhall_core/src/core.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/dhall_core/src/core.rs b/dhall_core/src/core.rs index db83a1e..3d1b9f3 100644 --- a/dhall_core/src/core.rs +++ b/dhall_core/src/core.rs @@ -598,6 +598,25 @@ pub fn rc<N, E>(x: Expr<N, E>) -> SubExpr<N, E> { SubExpr(Rc::new(x)) } +pub fn app<N, E>(f: Expr<N, E>, args: Vec<SubExpr<N, E>>) -> Expr<N, E> { + if args.is_empty() { + f + } else { + ExprF::App(rc(f), args) + } +} + +pub fn app_rc<N, E>( + f: SubExpr<N, E>, + args: Vec<SubExpr<N, E>>, +) -> SubExpr<N, E> { + if args.is_empty() { + f + } else { + rc(ExprF::App(f, args)) + } +} + fn add_ui(u: usize, i: isize) -> usize { if i < 0 { u.checked_sub(i.checked_neg().unwrap() as usize).unwrap() |