shithub: mc

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Remove spandrels.

	Match patterns can't be null. They haven't been nullable
	for ages. And even if they could be nullable, $2 isn't the
	match statement any more.

--- a/lib/bio/bio.myr

+++ b/lib/bio/bio.myr

@@ -61,7 +61,7 @@

 	const flush	: (f : file# -> bool)

 	/* seeking */

-	const seek	: (f : file#, std.off -> std.result(std.off, ioerr))

+	const seek	: (f : file#, off : std.off -> std.result(std.off, ioerr))

 	/* single unit operations */

 	const putb	: (f : file#, b : byte	-> status(std.size))

--- a/parse/gram.y

+++ b/parse/gram.y

@@ -979,12 +979,10 @@

 matches : match {

 		$$.nl = NULL;

 		$$.nn = 0;

-		if ($1)

-			lappend(&$$.nl, &$$.nn, $1);

+		lappend(&$$.nl, &$$.nn, $1);

 	}

 	| matches Tbor match {

-		if ($2)

-			lappend(&$$.nl, &$$.nn, $3);

+		lappend(&$$.nl, &$$.nn, $3);

 	}

 	;