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// Namespace Handling.
use super::utils::{debug_context, DIB};
use rustc_codegen_ssa::debuginfo::type_names;
use rustc_middle::ty::{self, Instance};
use crate::common::CodegenCx;
use crate::llvm;
use crate::llvm::debuginfo::DIScope;
use rustc_hir::def_id::DefId;
pub fn mangled_name_of_instance<'a, 'tcx>(
cx: &CodegenCx<'a, 'tcx>,
instance: Instance<'tcx>,
) -> ty::SymbolName<'tcx> {
let tcx = cx.tcx;
tcx.symbol_name(instance)
}
pub fn item_namespace<'ll>(cx: &CodegenCx<'ll, '_>, def_id: DefId) -> &'ll DIScope {
if let Some(&scope) = debug_context(cx).namespace_map.borrow().get(&def_id) {
return scope;
}
let def_key = cx.tcx.def_key(def_id);
let parent_scope = def_key
.parent
.map(|parent| item_namespace(cx, DefId { krate: def_id.krate, index: parent }));
let namespace_name_string = {
let mut output = String::new();
type_names::push_item_name(cx.tcx, def_id, false, &mut output);
output
};
let scope = unsafe {
llvm::LLVMRustDIBuilderCreateNameSpace(
DIB(cx),
parent_scope,
namespace_name_string.as_ptr().cast(),
namespace_name_string.len(),
false, // ExportSymbols (only relevant for C++ anonymous namespaces)
)
};
debug_context(cx).namespace_map.borrow_mut().insert(def_id, scope);
scope
}
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