diff options
Diffstat (limited to 'system/doc/reference_manual')
| -rw-r--r-- | system/doc/reference_manual/typespec.xml | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/system/doc/reference_manual/typespec.xml b/system/doc/reference_manual/typespec.xml index 48df57f71b..3c91f1686d 100644 --- a/system/doc/reference_manual/typespec.xml +++ b/system/doc/reference_manual/typespec.xml @@ -124,6 +124,7 @@ List :: list(Type) %% Proper list ([]-terminated) | improper_list(Type1, Type2) %% Type1=contents, Type2=termination | maybe_improper_list(Type1, Type2) %% Type1 and Type2 as above + | nonempty_list(Type) %% Proper non-empty list Tuple :: tuple() %% stands for a tuple of any size | {} @@ -146,9 +147,8 @@ </p> <p> Because lists are commonly used, they have shorthand type notations. - The type <c>list(T)</c> has the shorthand <c>[T]</c>. - The shorthand <c>[T,...]</c> stands for - the set of non-empty proper lists whose elements are of type <c>T</c>. + The types <c>list(T)</c> and <c>nonempty_list(T)</c> have the shorthands + <c>[T]</c> and <c>[T,...]</c>, respectively. The only difference between the two shorthands is that <c>[T]</c> may be an empty list but <c>[T,...]</c> may not. </p> @@ -194,7 +194,7 @@ <cell><c>maybe_improper_list()</c></cell><cell><c>maybe_improper_list(any(), any())</c></cell> </row> <row> - <cell><c>maybe_improper_list(T)</c></cell><cell><c>maybe_improper_list(T, any())</c></cell> + <cell><c>nonempty_list()</c></cell><cell><c>nonempty_list(any())</c></cell> </row> <row> <cell><c>string()</c></cell><cell><c>[char()]</c></cell> @@ -203,13 +203,19 @@ <cell><c>nonempty_string()</c></cell><cell><c>[char(),...]</c></cell> </row> <row> + <cell><c>iodata()</c></cell><cell><c>iolist() | binary()</c></cell> + </row> + <row> <cell><c>iolist()</c></cell><cell><c>maybe_improper_list(byte() | binary() | iolist(), binary() | [])</c></cell> </row> <row> <cell><c>module()</c></cell><cell><c>atom()</c></cell> </row> <row> - <cell><c>mfa()</c></cell><cell><c>{atom(),atom(),byte()}</c></cell> + <cell><c>mfa()</c></cell><cell><c>{atom(),atom(),arity()}</c></cell> + </row> + <row> + <cell><c>arity()</c></cell><cell><c>0..255</c></cell> </row> <row> <cell><c>node()</c></cell><cell><c>atom()</c></cell> @@ -253,16 +259,14 @@ but they are expected to be rarely used. Hence, they have long names: </note> <pre> - nonempty_maybe_improper_list(Type) :: nonempty_maybe_improper_list(Type, any()) - nonempty_maybe_improper_list() :: nonempty_maybe_improper_list(any())</pre> - <p> - where the following two types - define the set of Erlang terms one would expect: - </p> - <pre> + nonempty_maybe_improper_list() :: nonempty_maybe_improper_list(any(), any()) nonempty_improper_list(Type1, Type2) nonempty_maybe_improper_list(Type1, Type2)</pre> <p> + where the last two types + define the set of Erlang terms one would expect. + </p> + <p> Also for convenience, we allow for record notation to be used. Records are just shorthands for the corresponding tuples. </p> |