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//! Intermediate representation for modules (AKA C++ namespaces).
use super::context::BindgenContext;
use super::dot::DotAttributes;
use super::item::ItemSet;
use crate::clang;
use crate::parse::{ClangSubItemParser, ParseError, ParseResult};
use crate::parse_one;
use std::io;
/// Whether this module is inline or not.
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub(crate) enum ModuleKind {
/// This module is not inline.
Normal,
/// This module is inline, as in `inline namespace foo {}`.
Inline,
}
/// A module, as in, a C++ namespace.
#[derive(Clone, Debug)]
pub(crate) struct Module {
/// The name of the module, or none if it's anonymous.
name: Option<String>,
/// The kind of module this is.
kind: ModuleKind,
/// The children of this module, just here for convenience.
children: ItemSet,
}
impl Module {
/// Construct a new `Module`.
pub(crate) fn new(name: Option<String>, kind: ModuleKind) -> Self {
Module {
name,
kind,
children: ItemSet::new(),
}
}
/// Get this module's name.
pub(crate) fn name(&self) -> Option<&str> {
self.name.as_deref()
}
/// Get a mutable reference to this module's children.
pub(crate) fn children_mut(&mut self) -> &mut ItemSet {
&mut self.children
}
/// Get this module's children.
pub(crate) fn children(&self) -> &ItemSet {
&self.children
}
/// Whether this namespace is inline.
pub(crate) fn is_inline(&self) -> bool {
self.kind == ModuleKind::Inline
}
}
impl DotAttributes for Module {
fn dot_attributes<W>(
&self,
_ctx: &BindgenContext,
out: &mut W,
) -> io::Result<()>
where
W: io::Write,
{
writeln!(out, "<tr><td>ModuleKind</td><td>{:?}</td></tr>", self.kind)
}
}
impl ClangSubItemParser for Module {
fn parse(
cursor: clang::Cursor,
ctx: &mut BindgenContext,
) -> Result<ParseResult<Self>, ParseError> {
use clang_sys::*;
match cursor.kind() {
CXCursor_Namespace => {
let module_id = ctx.module(cursor);
ctx.with_module(module_id, |ctx| {
cursor.visit_sorted(ctx, |ctx, child| {
parse_one(ctx, child, Some(module_id.into()))
})
});
Ok(ParseResult::AlreadyResolved(module_id.into()))
}
_ => Err(ParseError::Continue),
}
}
}
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