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//===-- TypeSynthetic.cpp ----------------------------------------*- C++
//-*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/lldb-enumerations.h"
#include "lldb/lldb-public.h"
#include "lldb/Core/Debugger.h"
#include "lldb/DataFormatters/TypeSynthetic.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/ScriptInterpreter.h"
#include "lldb/Symbol/CompilerType.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/StreamString.h"
using namespace lldb;
using namespace lldb_private;
void TypeFilterImpl::AddExpressionPath(const std::string &path) {
bool need_add_dot = true;
if (path[0] == '.' || (path[0] == '-' && path[1] == '>') || path[0] == '[')
need_add_dot = false;
// add a '.' symbol to help forgetful users
if (!need_add_dot)
m_expression_paths.push_back(path);
else
m_expression_paths.push_back(std::string(".") + path);
}
bool TypeFilterImpl::SetExpressionPathAtIndex(size_t i,
const std::string &path) {
if (i >= GetCount())
return false;
bool need_add_dot = true;
if (path[0] == '.' || (path[0] == '-' && path[1] == '>') || path[0] == '[')
need_add_dot = false;
// add a '.' symbol to help forgetful users
if (!need_add_dot)
m_expression_paths[i] = path;
else
m_expression_paths[i] = std::string(".") + path;
return true;
}
size_t
TypeFilterImpl::FrontEnd::GetIndexOfChildWithName(const ConstString &name) {
const char *name_cstr = name.GetCString();
if (name_cstr) {
for (size_t i = 0; i < filter->GetCount(); i++) {
const char *expr_cstr = filter->GetExpressionPathAtIndex(i);
if (expr_cstr) {
if (*expr_cstr == '.')
expr_cstr++;
else if (*expr_cstr == '-' && *(expr_cstr + 1) == '>')
expr_cstr += 2;
}
if (expr_cstr) {
if (!::strcmp(name_cstr, expr_cstr))
return i;
}
}
}
return UINT32_MAX;
}
std::string TypeFilterImpl::GetDescription() {
StreamString sstr;
sstr.Printf("%s%s%s {\n", Cascades() ? "" : " (not cascading)",
SkipsPointers() ? " (skip pointers)" : "",
SkipsReferences() ? " (skip references)" : "");
for (size_t i = 0; i < GetCount(); i++) {
sstr.Printf(" %s\n", GetExpressionPathAtIndex(i));
}
sstr.Printf("}");
return sstr.GetString();
}
std::string CXXSyntheticChildren::GetDescription() {
StreamString sstr;
sstr.Printf("%s%s%s %s", Cascades() ? "" : " (not cascading)",
SkipsPointers() ? " (skip pointers)" : "",
SkipsReferences() ? " (skip references)" : "",
m_description.c_str());
return sstr.GetString();
}
lldb::ValueObjectSP SyntheticChildrenFrontEnd::CreateValueObjectFromExpression(
llvm::StringRef name, llvm::StringRef expression,
const ExecutionContext &exe_ctx) {
ValueObjectSP valobj_sp(
ValueObject::CreateValueObjectFromExpression(name, expression, exe_ctx));
if (valobj_sp)
valobj_sp->SetSyntheticChildrenGenerated(true);
return valobj_sp;
}
lldb::ValueObjectSP SyntheticChildrenFrontEnd::CreateValueObjectFromAddress(
llvm::StringRef name, uint64_t address, const ExecutionContext &exe_ctx,
CompilerType type) {
ValueObjectSP valobj_sp(
ValueObject::CreateValueObjectFromAddress(name, address, exe_ctx, type));
if (valobj_sp)
valobj_sp->SetSyntheticChildrenGenerated(true);
return valobj_sp;
}
lldb::ValueObjectSP SyntheticChildrenFrontEnd::CreateValueObjectFromData(
llvm::StringRef name, const DataExtractor &data,
const ExecutionContext &exe_ctx, CompilerType type) {
ValueObjectSP valobj_sp(
ValueObject::CreateValueObjectFromData(name, data, exe_ctx, type));
if (valobj_sp)
valobj_sp->SetSyntheticChildrenGenerated(true);
return valobj_sp;
}
#ifndef LLDB_DISABLE_PYTHON
ScriptedSyntheticChildren::FrontEnd::FrontEnd(std::string pclass,
ValueObject &backend)
: SyntheticChildrenFrontEnd(backend), m_python_class(pclass),
m_wrapper_sp(), m_interpreter(NULL) {
if (backend == LLDB_INVALID_UID)
return;
TargetSP target_sp = backend.GetTargetSP();
if (!target_sp)
return;
m_interpreter =
target_sp->GetDebugger().GetCommandInterpreter().GetScriptInterpreter();
if (m_interpreter != NULL)
m_wrapper_sp = m_interpreter->CreateSyntheticScriptedProvider(
m_python_class.c_str(), backend.GetSP());
}
ScriptedSyntheticChildren::FrontEnd::~FrontEnd() {}
lldb::ValueObjectSP
ScriptedSyntheticChildren::FrontEnd::GetChildAtIndex(size_t idx) {
if (!m_wrapper_sp || !m_interpreter)
return lldb::ValueObjectSP();
return m_interpreter->GetChildAtIndex(m_wrapper_sp, idx);
}
bool ScriptedSyntheticChildren::FrontEnd::IsValid() {
return (m_wrapper_sp && m_wrapper_sp->IsValid() && m_interpreter);
}
size_t ScriptedSyntheticChildren::FrontEnd::CalculateNumChildren() {
if (!m_wrapper_sp || m_interpreter == NULL)
return 0;
return m_interpreter->CalculateNumChildren(m_wrapper_sp, UINT32_MAX);
}
size_t ScriptedSyntheticChildren::FrontEnd::CalculateNumChildren(uint32_t max) {
if (!m_wrapper_sp || m_interpreter == NULL)
return 0;
return m_interpreter->CalculateNumChildren(m_wrapper_sp, max);
}
bool ScriptedSyntheticChildren::FrontEnd::Update() {
if (!m_wrapper_sp || m_interpreter == NULL)
return false;
return m_interpreter->UpdateSynthProviderInstance(m_wrapper_sp);
}
bool ScriptedSyntheticChildren::FrontEnd::MightHaveChildren() {
if (!m_wrapper_sp || m_interpreter == NULL)
return false;
return m_interpreter->MightHaveChildrenSynthProviderInstance(m_wrapper_sp);
}
size_t ScriptedSyntheticChildren::FrontEnd::GetIndexOfChildWithName(
const ConstString &name) {
if (!m_wrapper_sp || m_interpreter == NULL)
return UINT32_MAX;
return m_interpreter->GetIndexOfChildWithName(m_wrapper_sp,
name.GetCString());
}
lldb::ValueObjectSP ScriptedSyntheticChildren::FrontEnd::GetSyntheticValue() {
if (!m_wrapper_sp || m_interpreter == NULL)
return nullptr;
return m_interpreter->GetSyntheticValue(m_wrapper_sp);
}
ConstString ScriptedSyntheticChildren::FrontEnd::GetSyntheticTypeName() {
if (!m_wrapper_sp || m_interpreter == NULL)
return ConstString();
return m_interpreter->GetSyntheticTypeName(m_wrapper_sp);
}
std::string ScriptedSyntheticChildren::GetDescription() {
StreamString sstr;
sstr.Printf("%s%s%s Python class %s", Cascades() ? "" : " (not cascading)",
SkipsPointers() ? " (skip pointers)" : "",
SkipsReferences() ? " (skip references)" : "",
m_python_class.c_str());
return sstr.GetString();
}
#endif // #ifndef LLDB_DISABLE_PYTHON
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