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from __future__ import annotations
from typing import Any
from .coverage_record import CoverageRecord
class GcovCoverageParser:
"""
Accepts a parsed json produced by gcov --json-format -- typically,
representing a single C++ test and produces a list
of CoverageRecord(s).
"""
def __init__(self, llvm_coverage: dict[str, Any]) -> None:
self._llvm_coverage = llvm_coverage
@staticmethod
def _skip_coverage(path: str) -> bool:
"""
Returns True if file path should not be processed.
This is repo-specific and only makes sense for the current state of
ovrsource.
"""
return "third-party" in path
def parse(self) -> list[CoverageRecord]:
# The JSON format is described in the gcov source code
# https://gcc.gnu.org/onlinedocs/gcc/Invoking-Gcov.html
records: list[CoverageRecord] = []
for file_info in self._llvm_coverage["files"]:
filepath = file_info["file"]
if self._skip_coverage(filepath):
continue
# parse json file
covered_lines: set[int] = set()
uncovered_lines: set[int] = set()
for line in file_info["lines"]:
line_number = line["line_number"]
count = line["count"]
if count == 0:
uncovered_lines.update([line_number])
else:
covered_lines.update([line_number])
records.append(
CoverageRecord(filepath, sorted(covered_lines), sorted(uncovered_lines))
)
return records
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