snippet fn "function declaration" i
fn $1($2) `!p
if t[3] == "":
	snip.rv = ""
else:
	snip.rv = " -> "` $3 {
	$4	
}
$0
endsnippet

snippet struct "struct declaration" 
// $1
// ${2:Description}
struct ${1:Name} {
	$3
}
$0
endsnippet

snippet impl "implement struct" 
// Implementation of $1
// ${2:Desciption}
impl ${1:struct} {
	$3
}
$0
endsnippet