6c599b1e9b
The `v` (`frame variable`) command can directly access ivars/fields of `this` or `self`.
Such as `v field`, instead of `v this->field`. This change relaxes the criteria for
finding `this`/`self` variables.
There are cases where a `this`/`self` variable does exist, but up to now the `v` command
has not made use of it. The user would have to explicitly run `v this->field` or
`self->_ivar` to access ivars. This change allows such cases to also work (without
explicitly dereferencing `this`/`self`).
A very common example in Objective-C (and Swift) is weakly capturing `self`:
```
__weak Type *weakSelf = self;
void (^block)(void) = ^{
Type *self = weakSelf; // Re-establish strong reference.
// `v _ivar` should work just as well as `v self->_ivar`.
};
```
In this case, `self` exists but `v` would not have used it. With this change, the fact
that a variable named `self` exists is enough for it to be used.
Differential Revision: https://reviews.llvm.org/D145276
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
//===-- CompilerDeclContext.cpp -------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Symbol/CompilerDeclContext.h"
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#include "lldb/Symbol/CompilerDecl.h"
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#include "lldb/Symbol/TypeSystem.h"
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#include <vector>
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using namespace lldb_private;
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std::vector<CompilerDecl>
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CompilerDeclContext::FindDeclByName(ConstString name,
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const bool ignore_using_decls) {
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if (IsValid())
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return m_type_system->DeclContextFindDeclByName(m_opaque_decl_ctx, name,
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ignore_using_decls);
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return std::vector<CompilerDecl>();
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}
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ConstString CompilerDeclContext::GetName() const {
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if (IsValid())
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return m_type_system->DeclContextGetName(m_opaque_decl_ctx);
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return ConstString();
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}
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ConstString CompilerDeclContext::GetScopeQualifiedName() const {
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if (IsValid())
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return m_type_system->DeclContextGetScopeQualifiedName(m_opaque_decl_ctx);
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return ConstString();
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}
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bool CompilerDeclContext::IsClassMethod() {
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if (IsValid())
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return m_type_system->DeclContextIsClassMethod(m_opaque_decl_ctx);
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return false;
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}
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lldb::LanguageType CompilerDeclContext::GetLanguage() {
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if (IsValid())
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return m_type_system->DeclContextGetLanguage(m_opaque_decl_ctx);
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return {};
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}
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ConstString
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CompilerDeclContext::GetInstanceVariableName(lldb::LanguageType language) {
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if (IsValid())
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return m_type_system->GetInstanceVariableName(language);
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return {};
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}
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bool CompilerDeclContext::IsContainedInLookup(CompilerDeclContext other) const {
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if (!IsValid())
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return false;
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// If the other context is just the current context, we don't need to go
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// over the type system to know that the lookup is identical.
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if (this == &other)
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return true;
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return m_type_system->DeclContextIsContainedInLookup(m_opaque_decl_ctx,
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other.m_opaque_decl_ctx);
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}
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bool lldb_private::operator==(const lldb_private::CompilerDeclContext &lhs,
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const lldb_private::CompilerDeclContext &rhs) {
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return lhs.GetTypeSystem() == rhs.GetTypeSystem() &&
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lhs.GetOpaqueDeclContext() == rhs.GetOpaqueDeclContext();
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}
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bool lldb_private::operator!=(const lldb_private::CompilerDeclContext &lhs,
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const lldb_private::CompilerDeclContext &rhs) {
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return lhs.GetTypeSystem() != rhs.GetTypeSystem() ||
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lhs.GetOpaqueDeclContext() != rhs.GetOpaqueDeclContext();
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}
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