forked from mirrors/gecko-dev
43 lines
1.4 KiB
Rust
43 lines
1.4 KiB
Rust
/// Helper function that appends extra documentation to [`crate::Builder`] methods that support regular
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/// expressions in their input.
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macro_rules! regex_option {
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($(#[$attrs:meta])* pub fn $($tokens:tt)*) => {
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$(#[$attrs])*
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///
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/// Regular expressions are supported. Check the [regular expression
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/// arguments](./struct.Builder.html#regular-expression-arguments) section and the
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/// [regex](https://docs.rs/regex) crate documentation for further information.
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pub fn $($tokens)*
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};
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}
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/// Helper macro to set the default value of each option.
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///
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/// This macro is an internal implementation detail of the `options` macro and should not be used
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/// directly.
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macro_rules! default {
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() => {
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Default::default()
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};
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($expr:expr) => {
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$expr
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};
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}
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/// Helper macro to set the conversion to CLI arguments for each option.
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///
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/// This macro is an internal implementation detail of the `options` macro and should not be used
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/// directly.
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macro_rules! as_args {
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($flag:literal) => {
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|field, args| AsArgs::as_args(field, args, $flag)
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};
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($expr:expr) => {
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$expr
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};
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}
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/// Helper function to ignore an option when converting it into CLI arguments.
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///
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/// This function is only used inside `options` and should not be used in other contexts.
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pub(super) fn ignore<T>(_: &T, _: &mut Vec<String>) {}
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