From afb7168a6414bd7d5a36ea5668df0170441ee3b1 Mon Sep 17 00:00:00 2001
From: Delyan Angelov <delian66@gmail.com>
Date: Fri, 30 Jul 2021 13:25:37 +0300
Subject: [PATCH] hash: move dummy map initialisation into an `fn init(){}`, so
 users do not have to do it explicitly to be compatible with -skip-unused

---
 cmd/tools/bench/wyhash.v | 3 ---
 cmd/tools/vwipe-cache.v  | 3 ---
 vlib/hash/wyhash.c.v     | 6 ++++++
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/cmd/tools/bench/wyhash.v b/cmd/tools/bench/wyhash.v
index 10d7e6b0d..b760ad6b5 100644
--- a/cmd/tools/bench/wyhash.v
+++ b/cmd/tools/bench/wyhash.v
@@ -6,9 +6,6 @@ import rand
 import benchmark
 
 fn main() {
-	_ := map{
-		1: 1
-	}
 	rand.seed([u32(42), 0])
 	sample_size := 10000000
 	min_str_len := 20
diff --git a/cmd/tools/vwipe-cache.v b/cmd/tools/vwipe-cache.v
index 0715ee070..988b7c262 100644
--- a/cmd/tools/vwipe-cache.v
+++ b/cmd/tools/vwipe-cache.v
@@ -4,9 +4,6 @@ import os
 import v.vcache
 
 fn main() {
-	_ := map{
-		1: 1
-	}
 	mut cm := vcache.new_cache_manager([])
 	cpath := cm.basepath
 	if os.exists(cpath) && os.is_dir(cpath) {
diff --git a/vlib/hash/wyhash.c.v b/vlib/hash/wyhash.c.v
index 4d4efe308..758af0306 100644
--- a/vlib/hash/wyhash.c.v
+++ b/vlib/hash/wyhash.c.v
@@ -6,6 +6,12 @@ fn C.wyhash(&byte, u64, u64, &u64) u64
 
 fn C.wyhash64(u64, u64) u64
 
+fn init() {
+	_ := map{
+		1: 1
+	}
+}
+
 [inline]
 pub fn wyhash_c(key &byte, len u64, seed u64) u64 {
 	return C.wyhash(key, len, seed, &u64(C._wyp))
-- 
2.30.2