bddebca61e
Recently https://reviews.llvm.org/D88103 introduced a nice API for converting a JSON object into C++ types, which include nice error messaging. I'm using that new functioniality to perform the parsing in a much more elegant way. As a result, the code looks simpler and more maintainable, as we aren't parsing anymore individual fields manually. I updated the test cases accordingly. Differential Revision: https://reviews.llvm.org/D88264
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
//===-- TraceIntelPTSettingsParser.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 "TraceIntelPTSettingsParser.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace llvm;
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StringRef TraceIntelPTSettingsParser::GetPluginSchema() {
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return R"({
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"type": "intel-pt",
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"pt_cpu": {
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"vendor": "intel" | "unknown",
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"family": integer,
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"model": integer,
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"stepping": integer
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}
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})";
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}
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void TraceIntelPTSettingsParser::ParsePTCPU(const JSONPTCPU &pt_cpu) {
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m_pt_cpu = {pt_cpu.vendor.compare("intel") == 0 ? pcv_intel : pcv_unknown,
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static_cast<uint16_t>(pt_cpu.family),
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static_cast<uint8_t>(pt_cpu.model),
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static_cast<uint8_t>(pt_cpu.stepping)};
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}
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llvm::Error TraceIntelPTSettingsParser::ParsePluginSettings(
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const llvm::json::Value &plugin_settings) {
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json::Path::Root root("settings.trace");
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JSONIntelPTSettings settings;
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if (!json::fromJSON(plugin_settings, settings, root))
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return CreateJSONError(root, plugin_settings);
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ParsePTCPU(settings.pt_cpu);
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m_trace.m_pt_cpu = m_pt_cpu;
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return llvm::Error::success();
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}
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