hare

commit 6aebde2538a5d8d6c5684ab5ac4d7c8a5d7f49ab
parent b8b0327ef2249b846f9f0cde2ac4d0f17af2f9d2
Author: Drew DeVault <sir@cmpwn.com>
Date:   Fri,  5 Feb 2021 12:27:02 -0500

fmt: accept nullable *void

Diffstat:
M
fmt/fmt.ha
 | 
8
++++++--

1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/fmt/fmt.ha b/fmt/fmt.ha
@@ -18,7 +18,8 @@ use strings;
 use types;
 
 // Tagged union of all types which are formattable.
-export type formattable = (...types::numeric | uintptr | str | rune | *void);
+export type formattable = (...types::numeric | uintptr
+	| str | rune | nullable *void);
 
 // Formats text for printing writes it to [os::stdout].
 export fn printf(fmt: str, args: formattable...) (io::error | size) =
@@ -106,5 +107,8 @@ fn format(out: *io::stream, arg: formattable) void = match (arg) {
 		let s = strconv::uptrtos(p);
 		io::write(out, strings::to_utf8(s));
 	},
-	v: *void => format(out, v: uintptr), // TODO: Hexadecimal
+	v: nullable *void => match (v) {
+		v: *void => format(out, v: uintptr), // TODO: Hexadecimal
+		null => format(out, "(null)"),
+	},
 };