[elpa] externals/elisp-benchmarks b5881ec 4/6: * benchmarks/pcase.el: Add new u-benchmark.

[Andrea Corallo]

branch: externals/elisp-benchmarks
commit b5881ec4eae8de3fe332626ec09d1c47b38e5712
Author: Andrea Corallo <akrl@sdf.org>
Commit: Andrea Corallo <akrl@sdf.org>

    * benchmarks/pcase.el: Add new u-benchmark.
---
 benchmarks/pcase.el | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/benchmarks/pcase.el b/benchmarks/pcase.el
new file mode 100644
index 0000000..22d9407
--- /dev/null
+++ b/benchmarks/pcase.el
@@ -0,0 +1,50 @@
+;; -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2020 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Apply a simple pattern match defined with pcase on the element of a list.
+
+(require 'cl-lib)
+
+(defvar elb-pcase-len 5000)
+(defvar elb-pcase-list (cl-loop repeat elb-pcase-len
+                               collect (cl-case (random 3)
+                                         (0 '(a b))
+                                         (1 '(a))
+                                         (2 (random 10)))))
+
+(defsubst foo (x)
+  (1+ x))
+
+(defsubst bar (x)
+  (* x x))
+
+(defun elb-pcase (l)
+  (cl-loop for x in l
+          counting (pcase x
+                     (`(a b) 1)
+                     (`(a) 2)
+                     (_ (foo (bar x))))))
+
+(defun elb-pcase-entry ()
+  (cl-loop repeat 20000
+          do (elb-pcase elb-pcase-list)))
+
+(provide 'elb-pcase)