48 lines
1.7 KiB
Rust
48 lines
1.7 KiB
Rust
// Utility Functions.
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use super::namespace::item_namespace;
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use super::CrateDebugContext;
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use rustc_hir::def_id::DefId;
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use rustc_middle::ty::DefIdTree;
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use crate::common::CodegenCx;
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use crate::llvm;
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use crate::llvm::debuginfo::{DIArray, DIBuilder, DIDescriptor, DIScope};
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pub fn is_node_local_to_unit(cx: &CodegenCx<'_, '_>, def_id: DefId) -> bool {
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// The is_local_to_unit flag indicates whether a function is local to the
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// current compilation unit (i.e., if it is *static* in the C-sense). The
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// *reachable* set should provide a good approximation of this, as it
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// contains everything that might leak out of the current crate (by being
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// externally visible or by being inlined into something externally
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// visible). It might better to use the `exported_items` set from
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// `driver::CrateAnalysis` in the future, but (atm) this set is not
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// available in the codegen pass.
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!cx.tcx.is_reachable_non_generic(def_id)
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}
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#[allow(non_snake_case)]
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pub fn create_DIArray<'ll>(
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builder: &DIBuilder<'ll>,
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arr: &[Option<&'ll DIDescriptor>],
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) -> &'ll DIArray {
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unsafe { llvm::LLVMRustDIBuilderGetOrCreateArray(builder, arr.as_ptr(), arr.len() as u32) }
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}
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#[inline]
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pub fn debug_context<'a, 'll, 'tcx>(
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cx: &'a CodegenCx<'ll, 'tcx>,
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) -> &'a CrateDebugContext<'ll, 'tcx> {
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cx.dbg_cx.as_ref().unwrap()
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}
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#[inline]
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#[allow(non_snake_case)]
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pub fn DIB<'a, 'll>(cx: &'a CodegenCx<'ll, '_>) -> &'a DIBuilder<'ll> {
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cx.dbg_cx.as_ref().unwrap().builder
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}
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pub fn get_namespace_for_item<'ll>(cx: &CodegenCx<'ll, '_>, def_id: DefId) -> &'ll DIScope {
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item_namespace(cx, cx.tcx.parent(def_id).expect("get_namespace_for_item: missing parent?"))
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}
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