Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 204 insertions, 0 deletions

diff --git a/third_party/rust/bindgen/regex_set.rs b/third_party/rust/bindgen/regex_set.rs
new file mode 100644
index 0000000000..b78424aae1
--- /dev/null
+++ b/third_party/rust/bindgen/regex_set.rs
@@ -0,0 +1,204 @@
+//! A type that represents the union of a set of regular expressions.
+#![deny(clippy::missing_docs_in_private_items)]
+
+use regex::RegexSet as RxSet;
+use std::cell::Cell;
+
+/// A dynamic set of regular expressions.
+#[derive(Clone, Debug, Default)]
+pub struct RegexSet {
+    items: Vec<Box<str>>,
+    /// Whether any of the items in the set was ever matched. The length of this
+    /// vector is exactly the length of `items`.
+    matched: Vec<Cell<bool>>,
+    set: Option<RxSet>,
+    /// Whether we should record matching items in the `matched` vector or not.
+    record_matches: bool,
+}
+
+impl RegexSet {
+    /// Create a new RegexSet
+    pub fn new() -> RegexSet {
+        RegexSet::default()
+    }
+
+    /// Is this set empty?
+    pub fn is_empty(&self) -> bool {
+        self.items.is_empty()
+    }
+
+    /// Insert a new regex into this set.
+    pub fn insert<S>(&mut self, string: S)
+    where
+        S: AsRef<str>,
+    {
+        self.items.push(string.as_ref().to_owned().into_boxed_str());
+        self.matched.push(Cell::new(false));
+        self.set = None;
+    }
+
+    /// Returns slice of String from its field 'items'
+    pub fn get_items(&self) -> &[Box<str>] {
+        &self.items
+    }
+
+    /// Returns an iterator over regexes in the set which didn't match any
+    /// strings yet.
+    pub fn unmatched_items(&self) -> impl Iterator<Item = &str> {
+        self.items.iter().enumerate().filter_map(move |(i, item)| {
+            if !self.record_matches || self.matched[i].get() {
+                return None;
+            }
+
+            Some(item.as_ref())
+        })
+    }
+
+    /// Construct a RegexSet from the set of entries we've accumulated.
+    ///
+    /// Must be called before calling `matches()`, or it will always return
+    /// false.
+    #[inline]
+    pub fn build(&mut self, record_matches: bool) {
+        self.build_inner(record_matches, None)
+    }
+
+    #[cfg(all(feature = "__cli", feature = "experimental"))]
+    /// Construct a RegexSet from the set of entries we've accumulated and emit diagnostics if the
+    /// name of the regex set is passed to it.
+    ///
+    /// Must be called before calling `matches()`, or it will always return
+    /// false.
+    #[inline]
+    pub fn build_with_diagnostics(
+        &mut self,
+        record_matches: bool,
+        name: Option<&'static str>,
+    ) {
+        self.build_inner(record_matches, name)
+    }
+
+    #[cfg(all(not(feature = "__cli"), feature = "experimental"))]
+    /// Construct a RegexSet from the set of entries we've accumulated and emit diagnostics if the
+    /// name of the regex set is passed to it.
+    ///
+    /// Must be called before calling `matches()`, or it will always return
+    /// false.
+    #[inline]
+    pub(crate) fn build_with_diagnostics(
+        &mut self,
+        record_matches: bool,
+        name: Option<&'static str>,
+    ) {
+        self.build_inner(record_matches, name)
+    }
+
+    fn build_inner(
+        &mut self,
+        record_matches: bool,
+        _name: Option<&'static str>,
+    ) {
+        let items = self.items.iter().map(|item| format!("^({})$", item));
+        self.record_matches = record_matches;
+        self.set = match RxSet::new(items) {
+            Ok(x) => Some(x),
+            Err(e) => {
+                warn!("Invalid regex in {:?}: {:?}", self.items, e);
+                #[cfg(feature = "experimental")]
+                if let Some(name) = _name {
+                    invalid_regex_warning(self, e, name);
+                }
+                None
+            }
+        }
+    }
+
+    /// Does the given `string` match any of the regexes in this set?
+    pub fn matches<S>(&self, string: S) -> bool
+    where
+        S: AsRef<str>,
+    {
+        let s = string.as_ref();
+        let set = match self.set {
+            Some(ref set) => set,
+            None => return false,
+        };
+
+        if !self.record_matches {
+            return set.is_match(s);
+        }
+
+        let matches = set.matches(s);
+        if !matches.matched_any() {
+            return false;
+        }
+        for i in matches.iter() {
+            self.matched[i].set(true);
+        }
+
+        true
+    }
+}
+
+#[cfg(feature = "experimental")]
+fn invalid_regex_warning(
+    set: &RegexSet,
+    err: regex::Error,
+    name: &'static str,
+) {
+    use crate::diagnostics::{Diagnostic, Level, Slice};
+
+    let mut diagnostic = Diagnostic::default();
+
+    match err {
+        regex::Error::Syntax(string) => {
+            if string.starts_with("regex parse error:\n") {
+                let mut source = String::new();
+
+                let mut parsing_source = true;
+
+                for line in string.lines().skip(1) {
+                    if parsing_source {
+                        if line.starts_with(' ') {
+                            source.push_str(line);
+                            source.push('\n');
+                            continue;
+                        }
+                        parsing_source = false;
+                    }
+                    let error = "error: ";
+                    if line.starts_with(error) {
+                        let (_, msg) = line.split_at(error.len());
+                        diagnostic.add_annotation(msg.to_owned(), Level::Error);
+                    } else {
+                        diagnostic.add_annotation(line.to_owned(), Level::Info);
+                    }
+                }
+                let mut slice = Slice::default();
+                slice.with_source(source);
+                diagnostic.add_slice(slice);
+
+                diagnostic.with_title(
+                    "Error while parsing a regular expression.",
+                    Level::Warn,
+                );
+            } else {
+                diagnostic.with_title(string, Level::Warn);
+            }
+        }
+        err => {
+            let err = err.to_string();
+            diagnostic.with_title(err, Level::Warn);
+        }
+    }
+
+    diagnostic.add_annotation(
+        format!("This regular expression was passed via `{}`.", name),
+        Level::Note,
+    );
+
+    if set.items.iter().any(|item| item.as_ref() == "*") {
+        diagnostic.add_annotation("Wildcard patterns \"*\" are no longer considered valid. Use \".*\" instead.", Level::Help);
+    }
+    diagnostic.display();
+}