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share the track_caller handling within a mir::Body

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This commit is contained in:
Ralf Jung 2023-10-28 16:16:15 +02:00
parent bad4be6e29
commit c6f5090294
1 changed files with 5 additions and 32 deletions
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37
src/common.rs
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@ -430,38 +430,11 @@ pub(crate) fn set_debug_loc(&mut self, source_info: mir::SourceInfo) {
}
}
// Note: must be kept in sync with get_caller_location from cg_ssa
pub(crate) fn get_caller_location(&mut self, mut source_info: mir::SourceInfo) -> CValue<'tcx> {
let span_to_caller_location = |fx: &mut FunctionCx<'_, '_, 'tcx>, span: Span| {
let const_loc = fx.tcx.span_as_caller_location(span);
crate::constant::codegen_const_value(fx, const_loc, fx.tcx.caller_location_ty())
};
// Walk up the `SourceScope`s, in case some of them are from MIR inlining.
// If so, the starting `source_info.span` is in the innermost inlined
// function, and will be replaced with outer callsite spans as long
// as the inlined functions were `#[track_caller]`.
loop {
let scope_data = &self.mir.source_scopes[source_info.scope];
if let Some((callee, callsite_span)) = scope_data.inlined {
// Stop inside the most nested non-`#[track_caller]` function,
// before ever reaching its caller (which is irrelevant).
if !callee.def.requires_caller_location(self.tcx) {
return span_to_caller_location(self, source_info.span);
}
source_info.span = callsite_span;
}
// Skip past all of the parents with `inlined: None`.
match scope_data.inlined_parent_scope {
Some(parent) => source_info.scope = parent,
None => break,
}
}
// No inlined `SourceScope`s, or all of them were `#[track_caller]`.
self.caller_location.unwrap_or_else(|| span_to_caller_location(self, source_info.span))
pub(crate) fn get_caller_location(&mut self, source_info: mir::SourceInfo) -> CValue<'tcx> {
self.mir.caller_location_span(source_info, self.caller_location, self.tcx, |span| {
let const_loc = self.tcx.span_as_caller_location(span);
crate::constant::codegen_const_value(self, const_loc, self.tcx.caller_location_ty())
})
}
pub(crate) fn anonymous_str(&mut self, msg: &str) -> Value {