llvm-project/lldb/source/Interpreter/OptionValueFormatEntity.cpp

116 lines
3.9 KiB
C++

//===-- OptionValueFormatEntity.cpp -----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Interpreter/OptionValueFormatEntity.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/Module.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Utility/Stream.h"
#include "lldb/Utility/StringList.h"
using namespace lldb;
using namespace lldb_private;
OptionValueFormatEntity::OptionValueFormatEntity(const char *default_format)
: OptionValue(), m_current_format(), m_default_format(), m_current_entry(),
m_default_entry() {
if (default_format && default_format[0]) {
llvm::StringRef default_format_str(default_format);
Status error = FormatEntity::Parse(default_format_str, m_default_entry);
if (error.Success()) {
m_default_format = default_format;
m_current_format = default_format;
m_current_entry = m_default_entry;
}
}
}
bool OptionValueFormatEntity::Clear() {
m_current_entry = m_default_entry;
m_current_format = m_default_format;
m_value_was_set = false;
return true;
}
void OptionValueFormatEntity::DumpValue(const ExecutionContext *exe_ctx,
Stream &strm, uint32_t dump_mask) {
if (dump_mask & eDumpOptionType)
strm.Printf("(%s)", GetTypeAsCString());
if (dump_mask & eDumpOptionValue) {
if (dump_mask & eDumpOptionType)
strm.PutCString(" = \"");
strm << m_current_format.c_str() << '"';
}
}
Status OptionValueFormatEntity::SetValueFromString(llvm::StringRef value_str,
VarSetOperationType op) {
Status error;
switch (op) {
case eVarSetOperationClear:
Clear();
NotifyValueChanged();
break;
case eVarSetOperationReplace:
case eVarSetOperationAssign: {
// Check if the string starts with a quote character after removing leading
// and trailing spaces.
// If it does start with a quote character, make sure it ends with the same
// quote character
// and remove the quotes before we parse the format string. If the string
// doesn't start with
// a quote, leave the string alone and parse as is.
llvm::StringRef trimmed_value_str = value_str.trim();
if (!trimmed_value_str.empty()) {
const char first_char = trimmed_value_str[0];
if (first_char == '"' || first_char == '\'') {
const size_t trimmed_len = trimmed_value_str.size();
if (trimmed_len == 1 || value_str[trimmed_len - 1] != first_char) {
error.SetErrorStringWithFormat("mismatched quotes");
return error;
}
value_str = trimmed_value_str.substr(1, trimmed_len - 2);
}
}
FormatEntity::Entry entry;
error = FormatEntity::Parse(value_str, entry);
if (error.Success()) {
m_current_entry = std::move(entry);
m_current_format = value_str;
m_value_was_set = true;
NotifyValueChanged();
}
} break;
case eVarSetOperationInsertBefore:
case eVarSetOperationInsertAfter:
case eVarSetOperationRemove:
case eVarSetOperationAppend:
case eVarSetOperationInvalid:
error = OptionValue::SetValueFromString(value_str, op);
break;
}
return error;
}
lldb::OptionValueSP OptionValueFormatEntity::DeepCopy() const {
return OptionValueSP(new OptionValueFormatEntity(*this));
}
size_t OptionValueFormatEntity::AutoComplete(
CommandInterpreter &interpreter, llvm::StringRef s, int match_start_point,
int max_return_elements, bool &word_complete, StringList &matches) {
return FormatEntity::AutoComplete(s, match_start_point, max_return_elements,
word_complete, matches);
}