mirror of
https://github.com/clap-rs/clap
synced 2024-12-25 03:53:07 +00:00
142 lines
5.1 KiB
Rust
142 lines
5.1 KiB
Rust
macro_rules! remove_overriden {
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(@remove $_self:ident, $v:ident, $a:ident.$ov:ident) => {
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if let Some(ref ora) = $a.$ov {
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vec_remove_all!($_self.$v, ora);
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}
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};
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(@arg $_self:ident, $arg:ident) => {
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remove_overriden!(@remove $_self, required, $arg.requires);
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remove_overriden!(@remove $_self, blacklist, $arg.blacklist);
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remove_overriden!(@remove $_self, overrides, $arg.overrides);
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};
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($_self:ident, $name:expr) => {
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debugln!("macro=remove_overriden!;");
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if let Some(ref o) = $_self.opts.iter().filter(|o| o.name == *$name).next() {
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remove_overriden!(@arg $_self, o);
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} else if let Some(ref f) = $_self.flags.iter().filter(|f| f.name == *$name).next() {
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remove_overriden!(@arg $_self, f);
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} else if let Some(p) = $_self.positionals.values().filter(|p| p.name == *$name).next() {
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remove_overriden!(@arg $_self, p);
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}
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};
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}
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macro_rules! arg_post_processing {
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($me:ident, $arg:ident, $matcher:ident) => {
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debugln!("macro=arg_post_processing!;");
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// Handle POSIX overrides
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debug!("Is '{}' in overrides...", $arg.to_string());
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if $me.overrides.contains(&$arg.name()) {
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if let Some(ref name) = $me.overriden_from($arg.name(), $matcher) {
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sdebugln!("Yes by {}", name);
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$matcher.remove(name);
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remove_overriden!($me, name);
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}
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} else { sdebugln!("No"); }
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// Add overrides
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debug!("Does '{}' have overrides...", $arg.to_string());
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if let Some(or) = $arg.overrides() {
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sdebugln!("Yes");
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$matcher.remove_all(or);
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for pa in or { remove_overriden!($me, pa); }
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$me.overrides.extend(or);
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vec_remove_all!($me.required, or);
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} else { sdebugln!("No"); }
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// Handle conflicts
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debug!("Does '{}' have conflicts...", $arg.to_string());
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if let Some(bl) = $arg.blacklist() {
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sdebugln!("Yes");
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$me.blacklist.extend(bl);
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vec_remove_all!($me.overrides, bl);
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vec_remove_all!($me.required, bl);
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} else { sdebugln!("No"); }
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// Add all required args which aren't already found in matcher to the master
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// list
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debug!("Does '{}' have requirements...", $arg.to_string());
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if let Some(reqs) = $arg.requires() {
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for n in reqs {
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if $matcher.contains(&n) {
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sdebugln!("\tYes '{}' but it's already met", n);
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continue;
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} else { sdebugln!("\tYes '{}'", n); }
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$me.required.push(n);
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}
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} else { sdebugln!("No"); }
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_handle_group_reqs!($me, $arg);
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};
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}
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macro_rules! _handle_group_reqs{
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($me:ident, $arg:ident) => ({
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use args::AnyArg;
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debugln!("macro=_handle_group_reqs!;");
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for grp in $me.groups.values() {
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let mut found = false;
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for name in &grp.args {
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if name == &$arg.name() {
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vec_remove!($me.required, name);
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if let Some(ref reqs) = grp.requires {
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$me.required.extend(reqs);
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}
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if let Some(ref bl) = grp.conflicts {
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$me.blacklist.extend(bl);
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}
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found = true; // What if arg is in more than one group with different reqs?
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break;
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}
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}
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if found {
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vec_remove_all!($me.required, &grp.args);
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$me.blacklist.extend(&grp.args);
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vec_remove!($me.blacklist, &$arg.name());
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}
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}
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})
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}
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macro_rules! validate_multiples {
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($_self:ident, $a:ident, $m:ident) => {
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debugln!("macro=validate_multiples!;");
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if $m.contains(&$a.name) && !$a.settings.is_set(ArgSettings::Multiple) {
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// Not the first time, and we don't allow multiples
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return Err(Error::unexpected_multiple_usage($a, &*$_self.create_current_usage($m)))
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}
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};
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}
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macro_rules! parse_positional {
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(
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$_self:ident,
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$p:ident,
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$arg_os:ident,
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$pos_only:ident,
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$pos_counter:ident,
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$matcher:ident
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) => {
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debugln!("macro=parse_positional!;");
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validate_multiples!($_self, $p, $matcher);
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if let Err(e) = $_self.add_val_to_arg($p, &$arg_os, $matcher) {
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return Err(e);
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}
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if !$pos_only &&
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($_self.settings.is_set(AppSettings::TrailingVarArg) &&
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$pos_counter == $_self.positionals.len()) {
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$pos_only = true;
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}
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$matcher.inc_occurrence_of($p.name);
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let _ = $_self.groups_for_arg($p.name)
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.and_then(|vec| Some($matcher.inc_occurrences_of(&*vec)));
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arg_post_processing!($_self, $p, $matcher);
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// Only increment the positional counter if it doesn't allow multiples
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if !$p.settings.is_set(ArgSettings::Multiple) {
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$pos_counter += 1;
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}
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};
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}
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