diff options
Diffstat (limited to 'vendor/clap_builder/src/parser/matches/matched_arg.rs')
| -rw-r--r-- | vendor/clap_builder/src/parser/matches/matched_arg.rs | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/vendor/clap_builder/src/parser/matches/matched_arg.rs b/vendor/clap_builder/src/parser/matches/matched_arg.rs new file mode 100644 index 0000000..24df8b1 --- /dev/null +++ b/vendor/clap_builder/src/parser/matches/matched_arg.rs @@ -0,0 +1,225 @@ +// Std +use std::{ + ffi::{OsStr, OsString}, + iter::{Cloned, Flatten}, + slice::Iter, +}; + +use crate::builder::ArgPredicate; +use crate::parser::ValueSource; +use crate::util::eq_ignore_case; +use crate::util::AnyValue; +use crate::util::AnyValueId; +use crate::INTERNAL_ERROR_MSG; + +#[derive(Debug, Clone)] +pub(crate) struct MatchedArg { + source: Option<ValueSource>, + indices: Vec<usize>, + type_id: Option<AnyValueId>, + vals: Vec<Vec<AnyValue>>, + raw_vals: Vec<Vec<OsString>>, + ignore_case: bool, +} + +impl MatchedArg { + pub(crate) fn new_arg(arg: &crate::Arg) -> Self { + let ignore_case = arg.is_ignore_case_set(); + Self { + source: None, + indices: Vec::new(), + type_id: Some(arg.get_value_parser().type_id()), + vals: Vec::new(), + raw_vals: Vec::new(), + ignore_case, + } + } + + pub(crate) fn new_group() -> Self { + let ignore_case = false; + Self { + source: None, + indices: Vec::new(), + type_id: None, + vals: Vec::new(), + raw_vals: Vec::new(), + ignore_case, + } + } + + pub(crate) fn new_external(cmd: &crate::Command) -> Self { + let ignore_case = false; + Self { + source: None, + indices: Vec::new(), + type_id: Some( + cmd.get_external_subcommand_value_parser() + .expect(INTERNAL_ERROR_MSG) + .type_id(), + ), + vals: Vec::new(), + raw_vals: Vec::new(), + ignore_case, + } + } + + pub(crate) fn indices(&self) -> Cloned<Iter<'_, usize>> { + self.indices.iter().cloned() + } + + pub(crate) fn get_index(&self, index: usize) -> Option<usize> { + self.indices.get(index).cloned() + } + + pub(crate) fn push_index(&mut self, index: usize) { + self.indices.push(index) + } + + pub(crate) fn vals(&self) -> Iter<Vec<AnyValue>> { + self.vals.iter() + } + + pub(crate) fn into_vals(self) -> Vec<Vec<AnyValue>> { + self.vals + } + + pub(crate) fn vals_flatten(&self) -> Flatten<Iter<Vec<AnyValue>>> { + self.vals.iter().flatten() + } + + pub(crate) fn into_vals_flatten(self) -> Flatten<std::vec::IntoIter<Vec<AnyValue>>> { + self.vals.into_iter().flatten() + } + + pub(crate) fn raw_vals(&self) -> Iter<Vec<OsString>> { + self.raw_vals.iter() + } + + pub(crate) fn raw_vals_flatten(&self) -> Flatten<Iter<Vec<OsString>>> { + self.raw_vals.iter().flatten() + } + + pub(crate) fn first(&self) -> Option<&AnyValue> { + self.vals_flatten().next() + } + + #[cfg(test)] + pub(crate) fn first_raw(&self) -> Option<&OsString> { + self.raw_vals_flatten().next() + } + + pub(crate) fn new_val_group(&mut self) { + self.vals.push(vec![]); + self.raw_vals.push(vec![]); + } + + pub(crate) fn append_val(&mut self, val: AnyValue, raw_val: OsString) { + // We assume there is always a group created before. + self.vals.last_mut().expect(INTERNAL_ERROR_MSG).push(val); + self.raw_vals + .last_mut() + .expect(INTERNAL_ERROR_MSG) + .push(raw_val); + } + + pub(crate) fn num_vals(&self) -> usize { + self.vals.iter().map(|v| v.len()).sum() + } + + // Will be used later + #[allow(dead_code)] + pub(crate) fn num_vals_last_group(&self) -> usize { + self.vals.last().map(|x| x.len()).unwrap_or(0) + } + + pub(crate) fn all_val_groups_empty(&self) -> bool { + self.vals.iter().flatten().count() == 0 + } + + pub(crate) fn check_explicit(&self, predicate: &ArgPredicate) -> bool { + if self.source.map(|s| !s.is_explicit()).unwrap_or(false) { + return false; + } + + match predicate { + ArgPredicate::Equals(val) => self.raw_vals_flatten().any(|v| { + if self.ignore_case { + // If `v` isn't utf8, it can't match `val`, so `OsStr::to_str` should be fine + eq_ignore_case(&v.to_string_lossy(), &val.to_string_lossy()) + } else { + OsString::as_os_str(v) == OsStr::new(val) + } + }), + ArgPredicate::IsPresent => true, + } + } + + pub(crate) fn source(&self) -> Option<ValueSource> { + self.source + } + + pub(crate) fn set_source(&mut self, source: ValueSource) { + if let Some(existing) = self.source { + self.source = Some(existing.max(source)); + } else { + self.source = Some(source) + } + } + + pub(crate) fn type_id(&self) -> Option<AnyValueId> { + self.type_id + } + + pub(crate) fn infer_type_id(&self, expected: AnyValueId) -> AnyValueId { + self.type_id() + .or_else(|| { + self.vals_flatten() + .map(|v| v.type_id()) + .find(|actual| *actual != expected) + }) + .unwrap_or(expected) + } +} + +impl PartialEq for MatchedArg { + fn eq(&self, other: &MatchedArg) -> bool { + let MatchedArg { + source: self_source, + indices: self_indices, + type_id: self_type_id, + vals: _, + raw_vals: self_raw_vals, + ignore_case: self_ignore_case, + } = self; + let MatchedArg { + source: other_source, + indices: other_indices, + type_id: other_type_id, + vals: _, + raw_vals: other_raw_vals, + ignore_case: other_ignore_case, + } = other; + self_source == other_source + && self_indices == other_indices + && self_type_id == other_type_id + && self_raw_vals == other_raw_vals + && self_ignore_case == other_ignore_case + } +} + +impl Eq for MatchedArg {} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_grouped_vals_first() { + let mut m = MatchedArg::new_group(); + m.new_val_group(); + m.new_val_group(); + m.append_val(AnyValue::new(String::from("bbb")), "bbb".into()); + m.append_val(AnyValue::new(String::from("ccc")), "ccc".into()); + assert_eq!(m.first_raw(), Some(&OsString::from("bbb"))); + } +} |