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//===--- SILDebugScope.cpp - DebugScopes for SIL code ---------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
///
/// \file
///
/// This file defines a container for scope information used to
/// generate debug info.
///
//===----------------------------------------------------------------------===//
#include "swift/SIL/SILDebugScope.h"
#include "swift/SIL/SILFunction.h"
using namespace swift;
SILDebugScope::SILDebugScope(SILLocation Loc, SILFunction *SILFn,
const SILDebugScope *ParentScope,
const SILDebugScope *InlinedCallSite)
: Loc(Loc), InlinedCallSite(InlinedCallSite) {
if (ParentScope)
Parent = ParentScope;
else {
assert(SILFn && "no parent provided");
Parent = SILFn;
}
}
SILDebugScope::SILDebugScope(SILLocation Loc)
: Loc(Loc), InlinedCallSite(nullptr) {}
SILFunction *SILDebugScope::getInlinedFunction() const {
if (Parent.isNull())
return nullptr;
const SILDebugScope *Scope = this;
while (Scope->Parent.is<const SILDebugScope *>())
Scope = Scope->Parent.get<const SILDebugScope *>();
assert(Scope->Parent.is<SILFunction *>() && "orphaned scope");
return Scope->Parent.get<SILFunction *>();
}
SILFunction *SILDebugScope::getParentFunction() const {
if (InlinedCallSite)
return InlinedCallSite->getParentFunction();
if (auto *ParentScope = Parent.dyn_cast<const SILDebugScope *>())
return ParentScope->getParentFunction();
return Parent.get<SILFunction *>();
}
/// Determine whether an instruction may not have a SILDebugScope.
bool swift::maybeScopeless(const SILInstruction &inst) {
if (inst.getFunction()->isBare())
return true;
return !isa<DebugValueInst>(inst);
}
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