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318 lines
10 KiB
318 lines
10 KiB
4 months ago
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//===-- OptionValueArray.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/Interpreter/OptionValueArray.h"
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#include "lldb/Host/StringConvert.h"
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#include "lldb/Utility/Args.h"
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#include "lldb/Utility/Stream.h"
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using namespace lldb;
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using namespace lldb_private;
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void OptionValueArray::DumpValue(const ExecutionContext *exe_ctx, Stream &strm,
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uint32_t dump_mask) {
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const Type array_element_type = ConvertTypeMaskToType(m_type_mask);
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if (dump_mask & eDumpOptionType) {
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if ((GetType() == eTypeArray) && (m_type_mask != eTypeInvalid))
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strm.Printf("(%s of %ss)", GetTypeAsCString(),
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GetBuiltinTypeAsCString(array_element_type));
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else
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strm.Printf("(%s)", GetTypeAsCString());
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}
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if (dump_mask & eDumpOptionValue) {
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const bool one_line = dump_mask & eDumpOptionCommand;
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const uint32_t size = m_values.size();
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if (dump_mask & eDumpOptionType)
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strm.Printf(" =%s", (m_values.size() > 0 && !one_line) ? "\n" : "");
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if (!one_line)
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strm.IndentMore();
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for (uint32_t i = 0; i < size; ++i) {
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if (!one_line) {
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strm.Indent();
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strm.Printf("[%u]: ", i);
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}
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const uint32_t extra_dump_options = m_raw_value_dump ? eDumpOptionRaw : 0;
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switch (array_element_type) {
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default:
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case eTypeArray:
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case eTypeDictionary:
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case eTypeProperties:
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case eTypeFileSpecList:
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case eTypePathMap:
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m_values[i]->DumpValue(exe_ctx, strm, dump_mask | extra_dump_options);
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break;
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case eTypeBoolean:
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case eTypeChar:
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case eTypeEnum:
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case eTypeFileSpec:
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case eTypeFileLineColumn:
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case eTypeFormat:
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case eTypeSInt64:
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case eTypeString:
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case eTypeUInt64:
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case eTypeUUID:
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// No need to show the type for dictionaries of simple items
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m_values[i]->DumpValue(exe_ctx, strm, (dump_mask & (~eDumpOptionType)) |
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extra_dump_options);
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break;
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}
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if (!one_line) {
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if (i < (size - 1))
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strm.EOL();
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} else {
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strm << ' ';
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}
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}
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if (!one_line)
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strm.IndentLess();
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}
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}
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Status OptionValueArray::SetValueFromString(llvm::StringRef value,
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VarSetOperationType op) {
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Args args(value.str());
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Status error = SetArgs(args, op);
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if (error.Success())
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NotifyValueChanged();
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return error;
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}
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lldb::OptionValueSP
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OptionValueArray::GetSubValue(const ExecutionContext *exe_ctx,
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llvm::StringRef name, bool will_modify,
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Status &error) const {
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if (name.empty() || name.front() != '[') {
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error.SetErrorStringWithFormat(
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"invalid value path '%s', %s values only support '[<index>]' subvalues "
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"where <index> is a positive or negative array index",
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name.str().c_str(), GetTypeAsCString());
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return nullptr;
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}
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name = name.drop_front();
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llvm::StringRef index, sub_value;
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std::tie(index, sub_value) = name.split(']');
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if (index.size() == name.size()) {
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// Couldn't find a closing bracket
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return nullptr;
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}
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const size_t array_count = m_values.size();
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int32_t idx = 0;
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if (index.getAsInteger(0, idx))
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return nullptr;
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uint32_t new_idx = UINT32_MAX;
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if (idx < 0) {
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// Access from the end of the array if the index is negative
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new_idx = array_count - idx;
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} else {
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// Just a standard index
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new_idx = idx;
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}
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if (new_idx < array_count) {
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if (m_values[new_idx]) {
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if (!sub_value.empty())
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return m_values[new_idx]->GetSubValue(exe_ctx, sub_value,
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will_modify, error);
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else
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return m_values[new_idx];
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}
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} else {
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if (array_count == 0)
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error.SetErrorStringWithFormat(
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"index %i is not valid for an empty array", idx);
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else if (idx > 0)
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error.SetErrorStringWithFormat(
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"index %i out of range, valid values are 0 through %" PRIu64,
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idx, (uint64_t)(array_count - 1));
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else
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error.SetErrorStringWithFormat("negative index %i out of range, "
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"valid values are -1 through "
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"-%" PRIu64,
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idx, (uint64_t)array_count);
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}
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return OptionValueSP();
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}
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size_t OptionValueArray::GetArgs(Args &args) const {
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args.Clear();
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const uint32_t size = m_values.size();
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for (uint32_t i = 0; i < size; ++i) {
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llvm::StringRef string_value = m_values[i]->GetStringValue();
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if (!string_value.empty())
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args.AppendArgument(string_value);
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}
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return args.GetArgumentCount();
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}
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Status OptionValueArray::SetArgs(const Args &args, VarSetOperationType op) {
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Status error;
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const size_t argc = args.GetArgumentCount();
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switch (op) {
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case eVarSetOperationInvalid:
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error.SetErrorString("unsupported operation");
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break;
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case eVarSetOperationInsertBefore:
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case eVarSetOperationInsertAfter:
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if (argc > 1) {
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uint32_t idx =
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StringConvert::ToUInt32(args.GetArgumentAtIndex(0), UINT32_MAX);
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const uint32_t count = GetSize();
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if (idx > count) {
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error.SetErrorStringWithFormat(
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"invalid insert array index %u, index must be 0 through %u", idx,
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count);
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} else {
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if (op == eVarSetOperationInsertAfter)
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++idx;
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for (size_t i = 1; i < argc; ++i, ++idx) {
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lldb::OptionValueSP value_sp(CreateValueFromCStringForTypeMask(
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args.GetArgumentAtIndex(i), m_type_mask, error));
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if (value_sp) {
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if (error.Fail())
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return error;
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if (idx >= m_values.size())
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m_values.push_back(value_sp);
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else
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m_values.insert(m_values.begin() + idx, value_sp);
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} else {
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error.SetErrorString(
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"array of complex types must subclass OptionValueArray");
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return error;
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}
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}
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}
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} else {
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error.SetErrorString("insert operation takes an array index followed by "
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"one or more values");
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}
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break;
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case eVarSetOperationRemove:
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if (argc > 0) {
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const uint32_t size = m_values.size();
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std::vector<int> remove_indexes;
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bool all_indexes_valid = true;
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size_t i;
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for (i = 0; i < argc; ++i) {
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const size_t idx =
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StringConvert::ToSInt32(args.GetArgumentAtIndex(i), INT32_MAX);
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if (idx >= size) {
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all_indexes_valid = false;
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break;
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} else
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remove_indexes.push_back(idx);
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}
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if (all_indexes_valid) {
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size_t num_remove_indexes = remove_indexes.size();
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if (num_remove_indexes) {
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// Sort and then erase in reverse so indexes are always valid
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if (num_remove_indexes > 1) {
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llvm::sort(remove_indexes.begin(), remove_indexes.end());
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for (std::vector<int>::const_reverse_iterator
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pos = remove_indexes.rbegin(),
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end = remove_indexes.rend();
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pos != end; ++pos) {
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m_values.erase(m_values.begin() + *pos);
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}
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} else {
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// Only one index
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m_values.erase(m_values.begin() + remove_indexes.front());
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}
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}
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} else {
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error.SetErrorStringWithFormat(
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"invalid array index '%s', aborting remove operation",
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args.GetArgumentAtIndex(i));
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}
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} else {
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error.SetErrorString("remove operation takes one or more array indices");
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}
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break;
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case eVarSetOperationClear:
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Clear();
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break;
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case eVarSetOperationReplace:
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if (argc > 1) {
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uint32_t idx =
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StringConvert::ToUInt32(args.GetArgumentAtIndex(0), UINT32_MAX);
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const uint32_t count = GetSize();
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if (idx > count) {
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error.SetErrorStringWithFormat(
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"invalid replace array index %u, index must be 0 through %u", idx,
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count);
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} else {
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for (size_t i = 1; i < argc; ++i, ++idx) {
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lldb::OptionValueSP value_sp(CreateValueFromCStringForTypeMask(
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args.GetArgumentAtIndex(i), m_type_mask, error));
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if (value_sp) {
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if (error.Fail())
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return error;
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if (idx < count)
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m_values[idx] = value_sp;
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else
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m_values.push_back(value_sp);
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} else {
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error.SetErrorString(
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"array of complex types must subclass OptionValueArray");
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return error;
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}
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}
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}
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} else {
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error.SetErrorString("replace operation takes an array index followed by "
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"one or more values");
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}
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break;
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case eVarSetOperationAssign:
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m_values.clear();
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// Fall through to append case
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LLVM_FALLTHROUGH;
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case eVarSetOperationAppend:
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for (size_t i = 0; i < argc; ++i) {
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lldb::OptionValueSP value_sp(CreateValueFromCStringForTypeMask(
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args.GetArgumentAtIndex(i), m_type_mask, error));
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if (value_sp) {
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if (error.Fail())
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return error;
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m_value_was_set = true;
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AppendValue(value_sp);
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} else {
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error.SetErrorString(
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"array of complex types must subclass OptionValueArray");
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}
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}
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break;
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}
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return error;
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}
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lldb::OptionValueSP OptionValueArray::DeepCopy() const {
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OptionValueArray *copied_array =
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new OptionValueArray(m_type_mask, m_raw_value_dump);
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lldb::OptionValueSP copied_value_sp(copied_array);
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*static_cast<OptionValue *>(copied_array) = *this;
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copied_array->m_callback = m_callback;
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const uint32_t size = m_values.size();
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for (uint32_t i = 0; i < size; ++i) {
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copied_array->AppendValue(m_values[i]->DeepCopy());
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}
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return copied_value_sp;
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}
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