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# Copyright 2024 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Templates for generating builder classes for DWA entries."""
import codegen
HEADER = codegen.Template(basename="dwa_builders.h",
file_template="""
// Generated from gen_builders.py. DO NOT EDIT!
// source: dwa.xml
#ifndef {file.guard_path}
#define {file.guard_path}
#include <cstdint>
#include <string_view>
#include "components/metrics/dwa/dwa_entry_builder_base.h"
namespace dwa {{
namespace builders {{
{event_code}
}} // namespace builders
}} // namespace dwa
#endif // {file.guard_path}
""",
event_template="""
class {event.name} final : public ::dwa::internal::DwaEntryBuilderBase {{
public:
explicit {event.name}();
{event.name}({event.name}&&);
{event.name}& operator=({event.name}&&);
~{event.name}() override;
static const char kEntryName[];
static constexpr uint64_t kEntryNameHash = UINT64_C({event.hash});
{event.name}& SetContent(std::string_view content);
{metric_code}
{study_code}
}};
""",
metric_template="""
static const char k{metric.name}Name[];
static constexpr uint64_t k{metric.name}NameHash = UINT64_C({metric.hash});
{event.name}& Set{metric.name}(int64_t value);
""",
study_template="""
static constexpr char k{study.name}Name[] = "{study.raw_name}";
static constexpr uint32_t k{study.name}NameHash = UINT32_C({study.hash});
""")
IMPL = codegen.Template(
basename="dwa_builders.cc",
file_template="""
// Generated from gen_builders.py. DO NOT EDIT!
// source: dwa.xml
#include "{file.dir_path}dwa_builders.h"
#include "base/metrics/metrics_hashes.h"
namespace dwa {{
namespace builders {{
{event_code}
}} // namespace builders
}} // namespace dwa
""",
event_template="""
const char {event.name}::kEntryName[] = "{event.raw_name}";
const uint64_t {event.name}::kEntryNameHash;
{event.name}::{event.name}() :
::dwa::internal::DwaEntryBuilderBase(kEntryNameHash) {{
{study_code}
}}
{event.name}::{event.name}({event.name}&&) = default;
{event.name}& {event.name}::operator=({event.name}&&) = default;
{event.name}::~{event.name}() = default;
{event.name}& {event.name}::SetContent(std::string_view content) {{
SetContentInternal(base::HashMetricName(SanitizeContent(content)));
return *this;
}}
{metric_code}
""",
metric_template="""
const char {event.name}::k{metric.name}Name[] = "{metric.raw_name}";
const uint64_t {event.name}::k{metric.name}NameHash;
{event.name}& {event.name}::Set{metric.name}(int64_t value) {{
SetMetricInternal(k{metric.name}NameHash, value);
return *this;
}}
""",
study_template="""
AddToStudiesOfInterestInternal(k{study.name}Name);
""",
)
def WriteFiles(outdir, relpath, data):
HEADER.WriteFile(outdir, relpath, data)
IMPL.WriteFile(outdir, relpath, data)
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