rand: string()

vlib/rand/rand.v

@@ -128,3 +128,15 @@ pub fn f32_in_range(min, max f32) f32 {
 pub fn f64_in_range(min, max f64) f64 {
 	return default_rng.f64_in_range(min, max)
 }
+
+const (
+	chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
+)
+
+pub fn string(len int) string {
+	mut buf := malloc(len)
+	for i in 0..len {
+		buf[i] = chars[intn(chars.len)]
+	}
+	return string(buf, len)
+}

vlib/strings/strings.v

@@ -4,7 +4,6 @@ module strings
 
 // random returns a random string with `n` characters
 /*
-// TODO
 pub fn random(n int) string {
 	buf := vmalloc(n)
 	for i in 0..n {

vlib/v/builder/compile.v

@@ -167,7 +167,7 @@ Did you forget to add vlib to the path? (Use @vlib for default vlib)')
 }
 
 pub fn (v &Builder) get_user_files() []string {
-	if v.pref.path in ['vlib/builtin', 'vlib/strconv'] {
+	if v.pref.path in ['vlib/builtin', 'vlib/strconv', 'vlib/strings', 'vlib/hash'] {
 		// get_builtin_files() has already added the builtin files:
 		v.log('Skipping user files.')
 		return []

vlib/v/gen/fn.v

@@ -90,9 +90,16 @@ fn (mut g Gen) gen_fn_decl(it ast.FnDecl) {
 		}
 	} else {
 		if !(it.is_pub || g.pref.is_debug) {
+			// Private functions need to marked as static so that they are not exportable in the
+			// binaries
+			if g.pref.build_mode != .build_module {
+				// if !(g.pref.build_mode == .build_module && g.is_builtin_mod) {
+				// If we are building vlib/builtin, we need all private functions like array_get
+				// to be public, so that all V programs can access them.
 				g.write('static ')
 				g.definitions.write('static ')
 			}
+		}
 		fn_header := if msvc_attrs.len > 0 { '$type_name $msvc_attrs ${name}(' } else { '$type_name ${name}(' }
 		g.definitions.write(fn_header)
 		g.write(fn_header)