545cda649e
Adds a `--defaults`/`-d` flag to `settings show`. This mode will _optionally_ show a setting's default value. In other words, this does not always print a default value for every setting. A default value is not shown when the current value _is_ the default. Note: some setting types do not print empty or invalid values. For these setting types, if the default value is empty or invalid, the same elision logic is applied to printing the default value.
131 lines
4.3 KiB
C++
131 lines
4.3 KiB
C++
//===-- OptionValueEnumeration.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/OptionValueEnumeration.h"
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#include "lldb/Interpreter/OptionValue.h"
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#include "lldb/Utility/StringList.h"
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using namespace lldb;
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using namespace lldb_private;
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OptionValueEnumeration::OptionValueEnumeration(
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const OptionEnumValues &enumerators, enum_type value)
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: m_current_value(value), m_default_value(value) {
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SetEnumerations(enumerators);
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}
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void OptionValueEnumeration::DumpEnum(Stream &strm, enum_type value) {
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const size_t count = m_enumerations.GetSize();
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for (size_t i = 0; i < count; ++i)
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if (m_enumerations.GetValueAtIndexUnchecked(i).value == value) {
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strm.PutCString(m_enumerations.GetCStringAtIndex(i));
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return;
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}
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strm.Printf("%" PRIu64, (uint64_t)value);
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}
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void OptionValueEnumeration::DumpValue(const ExecutionContext *exe_ctx,
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Stream &strm, uint32_t dump_mask) {
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if (dump_mask & eDumpOptionType)
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strm.Printf("(%s)", GetTypeAsCString());
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if (dump_mask & eDumpOptionValue) {
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if (dump_mask & eDumpOptionType)
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strm.PutCString(" = ");
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DumpEnum(strm, m_current_value);
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if (dump_mask & eDumpOptionDefaultValue &&
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m_current_value != m_default_value) {
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DefaultValueFormat label(strm);
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DumpEnum(strm, m_default_value);
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}
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}
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}
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llvm::json::Value
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OptionValueEnumeration::ToJSON(const ExecutionContext *exe_ctx) const {
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for (const auto &enums : m_enumerations) {
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if (enums.value.value == m_current_value)
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return enums.cstring.GetStringRef();
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}
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return std::to_string(static_cast<uint64_t>(m_current_value));
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}
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Status OptionValueEnumeration::SetValueFromString(llvm::StringRef value,
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VarSetOperationType op) {
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Status error;
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switch (op) {
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case eVarSetOperationClear:
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Clear();
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NotifyValueChanged();
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break;
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case eVarSetOperationReplace:
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case eVarSetOperationAssign: {
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ConstString const_enumerator_name(value.trim());
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const EnumerationMapEntry *enumerator_entry =
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m_enumerations.FindFirstValueForName(const_enumerator_name);
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if (enumerator_entry) {
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m_current_value = enumerator_entry->value.value;
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NotifyValueChanged();
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} else {
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StreamString error_strm;
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error_strm.Printf("invalid enumeration value '%s'", value.str().c_str());
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const size_t count = m_enumerations.GetSize();
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if (count) {
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error_strm.Printf(", valid values are: %s",
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m_enumerations.GetCStringAtIndex(0).GetCString());
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for (size_t i = 1; i < count; ++i) {
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error_strm.Printf(", %s",
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m_enumerations.GetCStringAtIndex(i).GetCString());
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}
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}
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error = Status(error_strm.GetString().str());
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}
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break;
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}
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case eVarSetOperationInsertBefore:
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case eVarSetOperationInsertAfter:
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case eVarSetOperationRemove:
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case eVarSetOperationAppend:
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case eVarSetOperationInvalid:
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error = OptionValue::SetValueFromString(value, op);
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break;
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}
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return error;
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}
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void OptionValueEnumeration::SetEnumerations(
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const OptionEnumValues &enumerators) {
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m_enumerations.Clear();
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for (const auto &enumerator : enumerators) {
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ConstString const_enumerator_name(enumerator.string_value);
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EnumeratorInfo enumerator_info = {enumerator.value, enumerator.usage};
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m_enumerations.Append(const_enumerator_name, enumerator_info);
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}
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m_enumerations.Sort();
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}
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void OptionValueEnumeration::AutoComplete(CommandInterpreter &interpreter,
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CompletionRequest &request) {
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const uint32_t num_enumerators = m_enumerations.GetSize();
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if (!request.GetCursorArgumentPrefix().empty()) {
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for (size_t i = 0; i < num_enumerators; ++i) {
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llvm::StringRef name = m_enumerations.GetCStringAtIndex(i).GetStringRef();
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request.TryCompleteCurrentArg(name);
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}
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return;
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}
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for (size_t i = 0; i < num_enumerators; ++i)
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request.AddCompletion(m_enumerations.GetCStringAtIndex(i).GetStringRef());
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}
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