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author | Nadrieril | 2019-03-01 17:28:19 +0100 |
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committer | Nadrieril | 2019-03-01 17:28:19 +0100 |
commit | e5d9aee00b0c775df1d8e2d8819aeb80dffa73c2 (patch) | |
tree | e763a24a0d635048232e72e167ca37eafec69369 /dhall/src/grammar_util.rs | |
parent | 8a2b7536902831079eddd7b00291b718f5dd7186 (diff) |
Split abnf_to_pest and dhall into their own crates
Diffstat (limited to 'dhall/src/grammar_util.rs')
-rw-r--r-- | dhall/src/grammar_util.rs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/dhall/src/grammar_util.rs b/dhall/src/grammar_util.rs new file mode 100644 index 0000000..c546a13 --- /dev/null +++ b/dhall/src/grammar_util.rs @@ -0,0 +1,14 @@ +use crate::core::{Expr, X}; +use crate::lexer::Builtin; + +pub type ParsedExpr<'i> = Expr<'i, X, X>; // FIXME Parse paths and replace the second X with Path +pub type BoxExpr<'i> = Box<ParsedExpr<'i>>; +pub type ExprOpFn<'i> = fn(BoxExpr<'i>, BoxExpr<'i>) -> ParsedExpr<'i>; +pub type ExprListFn<'i> = fn(BoxExpr<'i>, Vec<ParsedExpr<'i>>) -> ParsedExpr<'i>; + +pub fn builtin_expr<'i, S, A>(b: Builtin) -> Expr<'i, S, A> { + match b { + Builtin::Type(t) => Expr::BuiltinType(t), + Builtin::Value(v) => Expr::BuiltinValue(v), + } +} |