67 lines
1.9 KiB
Rust
67 lines
1.9 KiB
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Namespace Handling.
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use super::metadata::{unknown_file_metadata, UNKNOWN_LINE_NUMBER};
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use super::utils::{DIB, debug_context};
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use monomorphize::Instance;
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use rustc::ty;
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use llvm;
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use llvm::debuginfo::DIScope;
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use rustc::hir::def_id::DefId;
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use rustc::hir::map::DefPathData;
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use common::CodegenCx;
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use std::ffi::CString;
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use std::ptr;
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pub fn mangled_name_of_instance<'a, 'tcx>(
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cx: &CodegenCx<'a, 'tcx>,
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instance: Instance<'tcx>,
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) -> ty::SymbolName {
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let tcx = cx.tcx;
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tcx.symbol_name(instance)
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}
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pub fn item_namespace(cx: &CodegenCx, def_id: DefId) -> DIScope {
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if let Some(&scope) = debug_context(cx).namespace_map.borrow().get(&def_id) {
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return scope;
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}
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let def_key = cx.tcx.def_key(def_id);
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let parent_scope = def_key.parent.map_or(ptr::null_mut(), |parent| {
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item_namespace(cx, DefId {
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krate: def_id.krate,
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index: parent
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})
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});
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let namespace_name = match def_key.disambiguated_data.data {
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DefPathData::CrateRoot => cx.tcx.crate_name(def_id.krate).as_str(),
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data => data.as_interned_str().as_str()
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};
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let namespace_name = CString::new(namespace_name.as_bytes()).unwrap();
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let scope = unsafe {
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llvm::LLVMRustDIBuilderCreateNameSpace(
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DIB(cx),
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parent_scope,
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namespace_name.as_ptr(),
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unknown_file_metadata(cx),
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UNKNOWN_LINE_NUMBER)
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};
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debug_context(cx).namespace_map.borrow_mut().insert(def_id, scope);
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scope
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}
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