[IO::Path] document {,is-}{absolute,relative}; update TODOs

Author: moritz

lib/Type/IO/Path.pod

@@ -25,8 +25,7 @@ unless when stated otherwise.
 
 =for TODO
 
-document the following methods: is-absolute, is-relative, absolute,
-relative, parent, child, copy,
+document the following methods: parent, child, copy, cleanup, resolve
 
 =end for
 
@@ -105,6 +104,30 @@ as the L<open> function accepts.
 Watches the path for modifications. Only implemented in Rakudo with the MoarVM
 backend at the moment.
 
+=head2 method is-absolute
+
+    method is-absolute(IO::Path:D: --> Bool:D)
+
+Returns C<True> if the path is an absolute path, and C<False> otherwise.
+
+=head2 method is-relative
+
+    method is-relative(IO::Path:D: --> Bool:D)
+
+Returns C<True> if the path is a relative path, and C<False> otherwise.
+
+=head2 method absolute
+
+    method absolute (IO::Path:D: $base = ~$*CWD --> IO::Path:D)
+
+Returns a new C<IO::Path> object that is an absolute path, based on C<$base>.
+
+=head2 method relative
+
+    method relative (IO::Path:D: $base = ~$*CWD --> IO::Path:D)
+
+Returns a new C<IO::Path> object relative to the C<$base> path.
+
 =head2 method contents
 
     method contents(IO::Path:D: Mu :$test = none('.', '..'))