Vendor dependencies for 0.3.0 release

vendor/bindgen/options/as_args.rs

@@ -0,0 +1,52 @@
+use std::path::PathBuf;
+
+use crate::regex_set::RegexSet;
+
+/// Trait used to turn [`crate::BindgenOptions`] fields into CLI args.
+pub(super) trait AsArgs {
+    fn as_args(&self, args: &mut Vec<String>, flag: &str);
+}
+
+/// If the `bool` is `true`, `flag` is pushed into `args`.
+///
+/// be careful about the truth value of the field as some options, like `--no-layout-tests`, are
+/// actually negations of the fields.
+impl AsArgs for bool {
+    fn as_args(&self, args: &mut Vec<String>, flag: &str) {
+        if *self {
+            args.push(flag.to_string());
+        }
+    }
+}
+
+/// Iterate over all the items of the `RegexSet` and push `flag` followed by the item into `args`
+/// for each item.
+impl AsArgs for RegexSet {
+    fn as_args(&self, args: &mut Vec<String>, flag: &str) {
+        for item in self.get_items() {
+            args.extend_from_slice(&[flag.to_owned(), item.clone().into()]);
+        }
+    }
+}
+
+/// If the `Option` is `Some(value)`, push `flag` followed by `value`.
+impl AsArgs for Option<String> {
+    fn as_args(&self, args: &mut Vec<String>, flag: &str) {
+        if let Some(string) = self {
+            args.extend_from_slice(&[flag.to_owned(), string.clone()]);
+        }
+    }
+}
+
+/// If the `Option` is `Some(path)`, push `flag` followed by the [`std::path::Path::display`]
+/// representation of `path`.
+impl AsArgs for Option<PathBuf> {
+    fn as_args(&self, args: &mut Vec<String>, flag: &str) {
+        if let Some(path) = self {
+            args.extend_from_slice(&[
+                flag.to_owned(),
+                path.display().to_string(),
+            ]);
+        }
+    }
+}

vendor/bindgen/options/helpers.rs

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