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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# Write out a C++ enum definition whose members are the names of
# scalar types.
#
# The scalars are defined in files provided as command-line arguments.
import sys
import buildconfig
from mozparsers import parse_scalars
from mozparsers.shared_telemetry_utils import ParserError
banner = """/* This file is auto-generated, see gen_scalar_enum.py. */
"""
file_header = """\
#ifndef mozilla_TelemetryScalarEnums_h
#define mozilla_TelemetryScalarEnums_h
namespace mozilla {
namespace Telemetry {
enum class ScalarID : uint32_t {\
"""
file_footer = """\
};
} // namespace mozilla
} // namespace Telemetry
#endif // mozilla_TelemetryScalarEnums_h
"""
def main(output, *filenames):
# Load the scalars first.
scalars = []
for filename in filenames:
try:
batch = parse_scalars.load_scalars(filename)
scalars.extend(batch)
except ParserError as ex:
print("\nError processing %s:\n%s\n" % (filename, str(ex)), file=sys.stderr)
sys.exit(1)
# Write the enum file.
print(banner, file=output)
print(file_header, file=output)
for s in scalars:
if s.record_on_os(buildconfig.substs["OS_TARGET"]):
print(" %s," % s.enum_label, file=output)
print(" ScalarCount,", file=output)
print(file_footer, file=output)
if __name__ == "__main__":
main(sys.stdout, *sys.argv[1:])
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