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Diffstat (limited to 'lib/refutpat.ml4')
-rw-r--r-- | lib/refutpat.ml4 | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/lib/refutpat.ml4 b/lib/refutpat.ml4 deleted file mode 100644 index db25ce73..00000000 --- a/lib/refutpat.ml4 +++ /dev/null @@ -1,33 +0,0 @@ -(************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2011 *) -(* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) -(************************************************************************) - -(*i camlp4use: "pa_extend.cmo q_MLast.cmo" i*) - -open Pcaml - -(** * Non-irrefutable patterns - - This small camlp4 extension creates a "let*" variant of the "let" - syntax that allow the use of a non-exhaustive pattern. The typical - usage is: - - let* x::l = foo in ... - - when foo is already known to be non-empty. This way, no warnings by ocamlc. - A Failure is raised if the pattern doesn't match the expression. -*) - - -EXTEND - expr: - [[ "let"; "*"; p = patt; "="; e1 = expr; "in"; e2 = expr -> - <:expr< match $e1$ with - [ $p$ -> $e2$ - | _ -> failwith "Refutable pattern failed" - ] >> ]]; -END |