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bccce81340
expression parser. You can use a persistent
type like this:
(lldb) expr struct $foo { int a; int b; };
(lldb) struct $foo i; i.a = 2; i.b = 3; i
($foo) $0 = {
(int) a = 2
(int) b = 3
}
typedefs work similarly.
This patch affects the following files:
test/expression_command/persistent_types/*
A test case for persistent types,
in particular structs and typedefs.
ClangForward.h
Added TypeDecl, needed to declare some
functions in ASTResultSynthesizer.h
ClangPersistentVariables.[h,cpp]
Added a list of persistent types to the
persistent variable store.
ASTResultSynthesizer.[h,cpp]
Made the AST result synthesizer iterate
across TypeDecls in the expression, and
record any persistent types found. Also
made a minor documentation fix.
ClangUserExpression.[h,cpp]
Extended the user expression class to
keep the state needed to report the
persistent variable store for the target
to the AST result synthesizers.
Also introduced a new error code for
expressions that executed normally but
did not return a result.
CommandObjectExpression.cpp
Improved output for expressions (like
declarations of new persistent types) that
don't return a result. This is no longer
treated as an error.
llvm-svn: 138383
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
//===-- ClangPersistentVariables.cpp ----------------------------*- 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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#include "lldb/Expression/ClangPersistentVariables.h"
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#include "lldb/Core/DataExtractor.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/StreamString.h"
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#include "lldb/Core/Value.h"
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#include "llvm/ADT/StringMap.h"
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using namespace lldb;
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using namespace lldb_private;
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ClangPersistentVariables::ClangPersistentVariables () :
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ClangExpressionVariableList(),
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m_next_persistent_variable_id (0)
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{
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}
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ClangExpressionVariableSP
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ClangPersistentVariables::CreatePersistentVariable (const lldb::ValueObjectSP &valobj_sp)
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{
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ClangExpressionVariableSP var_sp (CreateVariable(valobj_sp));
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return var_sp;
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}
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ClangExpressionVariableSP
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ClangPersistentVariables::CreatePersistentVariable (ExecutionContextScope *exe_scope,
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const ConstString &name,
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const TypeFromUser& user_type,
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lldb::ByteOrder byte_order,
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uint32_t addr_byte_size)
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{
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ClangExpressionVariableSP var_sp (GetVariable(name));
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if (!var_sp)
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var_sp = CreateVariable(exe_scope, name, user_type, byte_order, addr_byte_size);
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return var_sp;
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}
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ConstString
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ClangPersistentVariables::GetNextPersistentVariableName ()
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{
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char name_cstr[256];
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::snprintf (name_cstr, sizeof(name_cstr), "$%u", m_next_persistent_variable_id++);
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ConstString name(name_cstr);
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return name;
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}
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void
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ClangPersistentVariables::RegisterPersistentType (const ConstString &name,
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clang::TypeDecl *type_decl)
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{
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m_persistent_types.insert(std::pair<const char*, clang::TypeDecl*>(name.GetCString(), type_decl));
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}
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clang::TypeDecl *
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ClangPersistentVariables::GetPersistentType (const ConstString &name)
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{
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PersistentTypeMap::const_iterator i = m_persistent_types.find(name.GetCString());
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if (i == m_persistent_types.end())
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return NULL;
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else
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return i->second;
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}
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