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-rw-r--r--include/lldb/Expression/ExpressionVariable.h487
1 files changed, 212 insertions, 275 deletions
diff --git a/include/lldb/Expression/ExpressionVariable.h b/include/lldb/Expression/ExpressionVariable.h
index 451acb685bb7..3f6b020139de 100644
--- a/include/lldb/Expression/ExpressionVariable.h
+++ b/include/lldb/Expression/ExpressionVariable.h
@@ -19,313 +19,250 @@
#include "llvm/ADT/DenseMap.h"
// Project includes
-#include "lldb/lldb-public.h"
#include "lldb/Core/ConstString.h"
#include "lldb/Core/ValueObject.h"
+#include "lldb/lldb-public.h"
+
+namespace lldb_private {
-namespace lldb_private
-{
-
class ClangExpressionVariable;
-class ExpressionVariable :
- public std::enable_shared_from_this<ExpressionVariable>
-{
+class ExpressionVariable
+ : public std::enable_shared_from_this<ExpressionVariable> {
public:
- //----------------------------------------------------------------------
- // See TypeSystem.h for how to add subclasses to this.
- //----------------------------------------------------------------------
- enum LLVMCastKind {
- eKindClang,
- eKindSwift,
- eKindGo,
- kNumKinds
- };
-
- LLVMCastKind getKind() const { return m_kind; }
-
- ExpressionVariable(LLVMCastKind kind) :
- m_flags(0),
- m_kind(kind)
- {
- }
+ //----------------------------------------------------------------------
+ // See TypeSystem.h for how to add subclasses to this.
+ //----------------------------------------------------------------------
+ enum LLVMCastKind { eKindClang, eKindSwift, eKindGo, kNumKinds };
- virtual ~ExpressionVariable();
+ LLVMCastKind getKind() const { return m_kind; }
- size_t
- GetByteSize ()
- {
- return m_frozen_sp->GetByteSize();
- }
-
- const ConstString &
- GetName ()
- {
- return m_frozen_sp->GetName();
- }
-
- lldb::ValueObjectSP
- GetValueObject()
- {
- return m_frozen_sp;
- }
-
- uint8_t *GetValueBytes();
-
- void
- ValueUpdated ()
- {
- m_frozen_sp->ValueUpdated ();
- }
-
- RegisterInfo *
- GetRegisterInfo()
- {
- return m_frozen_sp->GetValue().GetRegisterInfo();
- }
-
- void
- SetRegisterInfo (const RegisterInfo *reg_info)
- {
- return m_frozen_sp->GetValue().SetContext (Value::eContextTypeRegisterInfo, const_cast<RegisterInfo *>(reg_info));
- }
-
- CompilerType
- GetCompilerType()
- {
- return m_frozen_sp->GetCompilerType();
- }
-
- void
- SetCompilerType(const CompilerType &compiler_type)
- {
- m_frozen_sp->GetValue().SetCompilerType(compiler_type);
- }
-
- void
- SetName (const ConstString &name)
- {
- m_frozen_sp->SetName (name);
- }
-
- // this function is used to copy the address-of m_live_sp into m_frozen_sp
- // this is necessary because the results of certain cast and pointer-arithmetic
- // operations (such as those described in bugzilla issues 11588 and 11618) generate
- // frozen objects that do not have a valid address-of, which can be troublesome when
- // using synthetic children providers. Transferring the address-of the live object
- // solves these issues and provides the expected user-level behavior
- void
- TransferAddress (bool force = false)
- {
- if (m_live_sp.get() == nullptr)
- return;
-
- if (m_frozen_sp.get() == nullptr)
- return;
-
- if (force || (m_frozen_sp->GetLiveAddress() == LLDB_INVALID_ADDRESS))
- m_frozen_sp->SetLiveAddress(m_live_sp->GetLiveAddress());
- }
-
- enum Flags
- {
- EVNone = 0,
- EVIsLLDBAllocated = 1 << 0, ///< This variable is resident in a location specifically allocated for it by LLDB in the target process
- EVIsProgramReference = 1 << 1, ///< This variable is a reference to a (possibly invalid) area managed by the target program
- EVNeedsAllocation = 1 << 2, ///< Space for this variable has yet to be allocated in the target process
- EVIsFreezeDried = 1 << 3, ///< This variable's authoritative version is in m_frozen_sp (for example, for statically-computed results)
- EVNeedsFreezeDry = 1 << 4, ///< Copy from m_live_sp to m_frozen_sp during dematerialization
- EVKeepInTarget = 1 << 5, ///< Keep the allocation after the expression is complete rather than freeze drying its contents and freeing it
- EVTypeIsReference = 1 << 6, ///< The original type of this variable is a reference, so materialize the value rather than the location
- EVUnknownType = 1 << 7, ///< This is a symbol of unknown type, and the type must be resolved after parsing is complete
- EVBareRegister = 1 << 8 ///< This variable is a direct reference to $pc or some other entity.
- };
-
- typedef uint16_t FlagType;
-
- FlagType m_flags; // takes elements of Flags
-
- // these should be private
- lldb::ValueObjectSP m_frozen_sp;
- lldb::ValueObjectSP m_live_sp;
- LLVMCastKind m_kind;
+ ExpressionVariable(LLVMCastKind kind) : m_flags(0), m_kind(kind) {}
+
+ virtual ~ExpressionVariable();
+
+ size_t GetByteSize() { return m_frozen_sp->GetByteSize(); }
+
+ const ConstString &GetName() { return m_frozen_sp->GetName(); }
+
+ lldb::ValueObjectSP GetValueObject() { return m_frozen_sp; }
+
+ uint8_t *GetValueBytes();
+
+ void ValueUpdated() { m_frozen_sp->ValueUpdated(); }
+
+ RegisterInfo *GetRegisterInfo() {
+ return m_frozen_sp->GetValue().GetRegisterInfo();
+ }
+
+ void SetRegisterInfo(const RegisterInfo *reg_info) {
+ return m_frozen_sp->GetValue().SetContext(
+ Value::eContextTypeRegisterInfo, const_cast<RegisterInfo *>(reg_info));
+ }
+
+ CompilerType GetCompilerType() { return m_frozen_sp->GetCompilerType(); }
+
+ void SetCompilerType(const CompilerType &compiler_type) {
+ m_frozen_sp->GetValue().SetCompilerType(compiler_type);
+ }
+
+ void SetName(const ConstString &name) { m_frozen_sp->SetName(name); }
+
+ // this function is used to copy the address-of m_live_sp into m_frozen_sp
+ // this is necessary because the results of certain cast and
+ // pointer-arithmetic
+ // operations (such as those described in bugzilla issues 11588 and 11618)
+ // generate
+ // frozen objects that do not have a valid address-of, which can be
+ // troublesome when
+ // using synthetic children providers. Transferring the address-of the live
+ // object
+ // solves these issues and provides the expected user-level behavior
+ void TransferAddress(bool force = false) {
+ if (m_live_sp.get() == nullptr)
+ return;
+
+ if (m_frozen_sp.get() == nullptr)
+ return;
+
+ if (force || (m_frozen_sp->GetLiveAddress() == LLDB_INVALID_ADDRESS))
+ m_frozen_sp->SetLiveAddress(m_live_sp->GetLiveAddress());
+ }
+
+ enum Flags {
+ EVNone = 0,
+ EVIsLLDBAllocated = 1 << 0, ///< This variable is resident in a location
+ ///specifically allocated for it by LLDB in the
+ ///target process
+ EVIsProgramReference = 1 << 1, ///< This variable is a reference to a
+ ///(possibly invalid) area managed by the
+ ///target program
+ EVNeedsAllocation = 1 << 2, ///< Space for this variable has yet to be
+ ///allocated in the target process
+ EVIsFreezeDried = 1 << 3, ///< This variable's authoritative version is in
+ ///m_frozen_sp (for example, for
+ ///statically-computed results)
+ EVNeedsFreezeDry =
+ 1 << 4, ///< Copy from m_live_sp to m_frozen_sp during dematerialization
+ EVKeepInTarget = 1 << 5, ///< Keep the allocation after the expression is
+ ///complete rather than freeze drying its contents
+ ///and freeing it
+ EVTypeIsReference = 1 << 6, ///< The original type of this variable is a
+ ///reference, so materialize the value rather
+ ///than the location
+ EVUnknownType = 1 << 7, ///< This is a symbol of unknown type, and the type
+ ///must be resolved after parsing is complete
+ EVBareRegister = 1 << 8 ///< This variable is a direct reference to $pc or
+ ///some other entity.
+ };
+
+ typedef uint16_t FlagType;
+
+ FlagType m_flags; // takes elements of Flags
+
+ // these should be private
+ lldb::ValueObjectSP m_frozen_sp;
+ lldb::ValueObjectSP m_live_sp;
+ LLVMCastKind m_kind;
};
-
+
//----------------------------------------------------------------------
-/// @class ExpressionVariableList ExpressionVariable.h "lldb/Expression/ExpressionVariable.h"
+/// @class ExpressionVariableList ExpressionVariable.h
+/// "lldb/Expression/ExpressionVariable.h"
/// @brief A list of variable references.
///
/// This class stores variables internally, acting as the permanent store.
//----------------------------------------------------------------------
-class ExpressionVariableList
-{
+class ExpressionVariableList {
public:
- //----------------------------------------------------------------------
- /// Implementation of methods in ExpressionVariableListBase
- //----------------------------------------------------------------------
- size_t
- GetSize()
- {
- return m_variables.size();
- }
-
- lldb::ExpressionVariableSP
- GetVariableAtIndex(size_t index)
- {
- lldb::ExpressionVariableSP var_sp;
- if (index < m_variables.size())
- var_sp = m_variables[index];
- return var_sp;
- }
-
- size_t
- AddVariable (const lldb::ExpressionVariableSP &var_sp)
- {
- m_variables.push_back(var_sp);
- return m_variables.size() - 1;
- }
-
- lldb::ExpressionVariableSP
- AddNewlyConstructedVariable (ExpressionVariable *var)
- {
- lldb::ExpressionVariableSP var_sp(var);
- m_variables.push_back(var_sp);
- return m_variables.back();
- }
+ //----------------------------------------------------------------------
+ /// Implementation of methods in ExpressionVariableListBase
+ //----------------------------------------------------------------------
+ size_t GetSize() { return m_variables.size(); }
- bool
- ContainsVariable (const lldb::ExpressionVariableSP &var_sp)
- {
- const size_t size = m_variables.size();
- for (size_t index = 0; index < size; ++index)
- {
- if (m_variables[index].get() == var_sp.get())
- return true;
- }
- return false;
+ lldb::ExpressionVariableSP GetVariableAtIndex(size_t index) {
+ lldb::ExpressionVariableSP var_sp;
+ if (index < m_variables.size())
+ var_sp = m_variables[index];
+ return var_sp;
+ }
+
+ size_t AddVariable(const lldb::ExpressionVariableSP &var_sp) {
+ m_variables.push_back(var_sp);
+ return m_variables.size() - 1;
+ }
+
+ lldb::ExpressionVariableSP
+ AddNewlyConstructedVariable(ExpressionVariable *var) {
+ lldb::ExpressionVariableSP var_sp(var);
+ m_variables.push_back(var_sp);
+ return m_variables.back();
+ }
+
+ bool ContainsVariable(const lldb::ExpressionVariableSP &var_sp) {
+ const size_t size = m_variables.size();
+ for (size_t index = 0; index < size; ++index) {
+ if (m_variables[index].get() == var_sp.get())
+ return true;
}
+ return false;
+ }
- //----------------------------------------------------------------------
- /// Finds a variable by name in the list.
- ///
- /// @param[in] name
- /// The name of the requested variable.
- ///
- /// @return
- /// The variable requested, or nullptr if that variable is not in the list.
- //----------------------------------------------------------------------
- lldb::ExpressionVariableSP
- GetVariable (const ConstString &name)
- {
- lldb::ExpressionVariableSP var_sp;
- for (size_t index = 0, size = GetSize(); index < size; ++index)
- {
- var_sp = GetVariableAtIndex(index);
- if (var_sp->GetName() == name)
- return var_sp;
- }
- var_sp.reset();
+ //----------------------------------------------------------------------
+ /// Finds a variable by name in the list.
+ ///
+ /// @param[in] name
+ /// The name of the requested variable.
+ ///
+ /// @return
+ /// The variable requested, or nullptr if that variable is not in the
+ /// list.
+ //----------------------------------------------------------------------
+ lldb::ExpressionVariableSP GetVariable(const ConstString &name) {
+ lldb::ExpressionVariableSP var_sp;
+ for (size_t index = 0, size = GetSize(); index < size; ++index) {
+ var_sp = GetVariableAtIndex(index);
+ if (var_sp->GetName() == name)
return var_sp;
}
+ var_sp.reset();
+ return var_sp;
+ }
+
+ lldb::ExpressionVariableSP GetVariable(llvm::StringRef name) {
+ if (name.empty())
+ return nullptr;
- lldb::ExpressionVariableSP
- GetVariable (const char *name)
- {
- lldb::ExpressionVariableSP var_sp;
- if (name && name[0])
- {
- for (size_t index = 0, size = GetSize(); index < size; ++index)
- {
- var_sp = GetVariableAtIndex(index);
- const char *var_name_cstr = var_sp->GetName().GetCString();
- if (!var_name_cstr || !name)
- continue;
- if (::strcmp (var_name_cstr, name) == 0)
- return var_sp;
- }
- var_sp.reset();
- }
+ for (size_t index = 0, size = GetSize(); index < size; ++index) {
+ auto var_sp = GetVariableAtIndex(index);
+ llvm::StringRef var_name_str = var_sp->GetName().GetStringRef();
+ if (var_name_str == name)
return var_sp;
}
-
- void
- RemoveVariable (lldb::ExpressionVariableSP var_sp)
- {
- for (std::vector<lldb::ExpressionVariableSP>::iterator vi = m_variables.begin(), ve = m_variables.end();
- vi != ve;
- ++vi)
- {
- if (vi->get() == var_sp.get())
- {
- m_variables.erase(vi);
- return;
- }
- }
- }
-
- void
- Clear()
- {
- m_variables.clear();
+ return nullptr;
+ }
+
+ void RemoveVariable(lldb::ExpressionVariableSP var_sp) {
+ for (std::vector<lldb::ExpressionVariableSP>::iterator
+ vi = m_variables.begin(),
+ ve = m_variables.end();
+ vi != ve; ++vi) {
+ if (vi->get() == var_sp.get()) {
+ m_variables.erase(vi);
+ return;
+ }
}
+ }
+
+ void Clear() { m_variables.clear(); }
private:
- std::vector <lldb::ExpressionVariableSP> m_variables;
+ std::vector<lldb::ExpressionVariableSP> m_variables;
};
-
+
class PersistentExpressionState : public ExpressionVariableList {
public:
- //----------------------------------------------------------------------
- // See TypeSystem.h for how to add subclasses to this.
- //----------------------------------------------------------------------
- enum LLVMCastKind {
- eKindClang,
- eKindSwift,
- eKindGo,
- kNumKinds
- };
-
- LLVMCastKind getKind() const { return m_kind; }
-
- PersistentExpressionState(LLVMCastKind kind) :
- m_kind(kind)
- {
- }
+ //----------------------------------------------------------------------
+ // See TypeSystem.h for how to add subclasses to this.
+ //----------------------------------------------------------------------
+ enum LLVMCastKind { eKindClang, eKindSwift, eKindGo, kNumKinds };
+
+ LLVMCastKind getKind() const { return m_kind; }
+
+ PersistentExpressionState(LLVMCastKind kind) : m_kind(kind) {}
+
+ virtual ~PersistentExpressionState();
+
+ virtual lldb::ExpressionVariableSP
+ CreatePersistentVariable(const lldb::ValueObjectSP &valobj_sp) = 0;
+
+ virtual lldb::ExpressionVariableSP
+ CreatePersistentVariable(ExecutionContextScope *exe_scope,
+ const ConstString &name, const CompilerType &type,
+ lldb::ByteOrder byte_order,
+ uint32_t addr_byte_size) = 0;
+
+ virtual ConstString GetNextPersistentVariableName() = 0;
+
+ virtual void
+ RemovePersistentVariable(lldb::ExpressionVariableSP variable) = 0;
+
+ virtual lldb::addr_t LookupSymbol(const ConstString &name);
+
+ void RegisterExecutionUnit(lldb::IRExecutionUnitSP &execution_unit_sp);
- virtual ~PersistentExpressionState();
-
- virtual lldb::ExpressionVariableSP
- CreatePersistentVariable (const lldb::ValueObjectSP &valobj_sp) = 0;
-
- virtual lldb::ExpressionVariableSP
- CreatePersistentVariable (ExecutionContextScope *exe_scope,
- const ConstString &name,
- const CompilerType &type,
- lldb::ByteOrder byte_order,
- uint32_t addr_byte_size) = 0;
-
- virtual ConstString
- GetNextPersistentVariableName () = 0;
-
- virtual void
- RemovePersistentVariable (lldb::ExpressionVariableSP variable) = 0;
-
- virtual lldb::addr_t
- LookupSymbol (const ConstString &name);
-
- void
- RegisterExecutionUnit (lldb::IRExecutionUnitSP &execution_unit_sp);
-
private:
- LLVMCastKind m_kind;
-
- typedef std::set<lldb::IRExecutionUnitSP> ExecutionUnitSet;
- ExecutionUnitSet m_execution_units; ///< The execution units that contain valuable symbols.
-
- typedef llvm::DenseMap<const char *, lldb::addr_t> SymbolMap;
- SymbolMap m_symbol_map; ///< The addresses of the symbols in m_execution_units.
+ LLVMCastKind m_kind;
+
+ typedef std::set<lldb::IRExecutionUnitSP> ExecutionUnitSet;
+ ExecutionUnitSet
+ m_execution_units; ///< The execution units that contain valuable symbols.
+
+ typedef llvm::DenseMap<const char *, lldb::addr_t> SymbolMap;
+ SymbolMap
+ m_symbol_map; ///< The addresses of the symbols in m_execution_units.
};
-
+
} // namespace lldb_private
#endif // liblldb_ExpressionVariable_h_
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