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b3b8ea8007
This patch wasn't reviewed, and isn't correctly preserving the behaviors relied upon by QT. I don't have a direct example of fallout, but it should go through the standard code review process. For example, it should never have removed the QT test case that was added when fixing those users. llvm-svn: 193174
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
//===- Scope.cpp - Lexical scope information --------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the Scope class, which is used for recording
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// information about a lexical scope.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Sema/Scope.h"
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using namespace clang;
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void Scope::Init(Scope *parent, unsigned flags) {
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AnyParent = parent;
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Flags = flags;
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if (parent && !(flags & FnScope)) {
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BreakParent = parent->BreakParent;
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ContinueParent = parent->ContinueParent;
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} else {
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// Control scopes do not contain the contents of nested function scopes for
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// control flow purposes.
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BreakParent = ContinueParent = 0;
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}
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if (parent) {
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Depth = parent->Depth + 1;
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PrototypeDepth = parent->PrototypeDepth;
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PrototypeIndex = 0;
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FnParent = parent->FnParent;
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BlockParent = parent->BlockParent;
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TemplateParamParent = parent->TemplateParamParent;
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} else {
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Depth = 0;
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PrototypeDepth = 0;
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PrototypeIndex = 0;
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FnParent = BlockParent = 0;
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TemplateParamParent = 0;
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}
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// If this scope is a function or contains breaks/continues, remember it.
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if (flags & FnScope) FnParent = this;
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if (flags & BreakScope) BreakParent = this;
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if (flags & ContinueScope) ContinueParent = this;
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if (flags & BlockScope) BlockParent = this;
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if (flags & TemplateParamScope) TemplateParamParent = this;
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// If this is a prototype scope, record that.
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if (flags & FunctionPrototypeScope) PrototypeDepth++;
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DeclsInScope.clear();
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UsingDirectives.clear();
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Entity = 0;
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ErrorTrap.reset();
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}
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bool Scope::containedInPrototypeScope() const {
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const Scope *S = this;
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while (S) {
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if (S->isFunctionPrototypeScope())
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return true;
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S = S->getParent();
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}
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return false;
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}
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