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LibCore: Refactor template definitions to header in ArgsParser

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This allows for automatic template instatiation and remove the need to
explicitly instantiate the template functions for different types.
This commit is contained in:
Ollrogge 2024-01-15 11:56:06 +01:00 • committed by Sam Atkins
parent 3a9278b31c
commit f784122703
2 changed files with 81 additions and 101 deletions
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86
Userland/Libraries/LibCore/ArgsParser.h
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@ -101,15 +101,77 @@ public:
},
.hide_mode = hide_mode });
}
template<Integral I>
void add_option(I& value, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None)
{
Option option {
OptionArgumentMode::Required,
help_string,
long_name,
short_name,
value_name,
[&value](StringView view) -> ErrorOr<bool> {
Optional<I> opt = view.to_number<I>();
value = opt.value_or(0);
return opt.has_value();
},
hide_mode,
};
add_option(move(option));
}
template<Integral I>
void add_option(Optional<I>& value, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None)
{
Option option {
OptionArgumentMode::Required,
help_string,
long_name,
short_name,
value_name,
[&value](StringView view) -> ErrorOr<bool> {
value = view.to_number<I>();
return value.has_value();
},
hide_mode,
};
add_option(move(option));
}
template<Integral I>
void add_option(Vector<I>& values, char const* help_string, char const* long_name, char short_name, char const* value_name, char separator = ',', OptionHideMode hide_mode = OptionHideMode::None)
{
Option option {
OptionArgumentMode::Required,
help_string,
long_name,
short_name,
value_name,
[&values, separator](StringView s) -> ErrorOr<bool> {
bool parsed_all_values = true;
s.for_each_split_view(separator, SplitBehavior::Nothing, [&](auto value) {
if (auto maybe_value = value.template to_number<I>(); maybe_value.has_value())
values.append(*maybe_value);
else
parsed_all_values = false;
});
return parsed_all_values;
},
hide_mode
};
add_option(move(option));
}
void add_option(ByteString& value, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None);
void add_option(String& value, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None);
void add_option(StringView& value, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None);
template<Integral I>
void add_option(I& value, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None);
void add_option(double& value, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None);
void add_option(Optional<double>& value, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None);
void add_option(Optional<size_t>& value, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None);
void add_option(Vector<size_t>& values, char const* help_string, char const* long_name, char short_name, char const* value_name, char separator = ',', OptionHideMode hide_mode = OptionHideMode::None);
// Note: This option is being used when we expect the user to use the same option
// multiple times (e.g. "program --option=example --option=anotherexample ...").
void add_option(Vector<ByteString>& values, char const* help_string, char const* long_name, char short_name, char const* value_name, OptionHideMode hide_mode = OptionHideMode::None);
@ -119,7 +181,21 @@ public:
void add_positional_argument(StringView& value, char const* help_string, char const* name, Required required = Required::Yes);
void add_positional_argument(String& value, char const* help_string, char const* name, Required required = Required::Yes);
template<Integral I>
void add_positional_argument(I& value, char const* help_string, char const* name, Required required = Required::Yes);
void add_positional_argument(I& value, char const* help_string, char const* name, Required required = Required::Yes)
{
Arg arg {
help_string,
name,
required == Required::Yes ? 1 : 0,
1,
[&value](StringView view) -> ErrorOr<bool> {
Optional<I> opt = view.to_number<I>();
value = opt.value_or(0);
return opt.has_value();
},
};
add_positional_argument(move(arg));
}
void add_positional_argument(double& value, char const* help_string, char const* name, Required required = Required::Yes);
void add_positional_argument(Vector<ByteString>& value, char const* help_string, char const* name, Required required = Required::Yes);
void add_positional_argument(Vector<StringView>& value, char const* help_string, char const* name, Required required = Required::Yes);