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gleam_stdlib
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retired
A standard library for the Gleam programming language
Current section
Files
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Files
gen/src/gleam@result.erl
-module(gleam@result).
-compile(no_auto_import).
-export([is_ok/1, is_error/1, map/2, map_error/2, flatten/1, then/2, unwrap/2]).
is_ok(Result) ->
case Result of
{error, _} ->
false;
{ok, _} ->
true
end.
is_error(Result) ->
case Result of
{ok, _} ->
false;
{error, _} ->
true
end.
map(Result, Fun) ->
case Result of
{ok, X} ->
{ok, Fun(X)};
{error, E} ->
{error, E}
end.
map_error(Result, Fun) ->
case Result of
{ok, X} ->
{ok, X};
{error, Error} ->
{error, Fun(Error)}
end.
flatten(Result) ->
case Result of
{ok, X} ->
X;
{error, Error} ->
{error, Error}
end.
then(Result, Fun) ->
case Result of
{ok, X} ->
Fun(X);
{error, E} ->
{error, E}
end.
unwrap(Result, Default) ->
case Result of
{ok, V} ->
V;
{error, _} ->
Default
end.