Development: LCOV Function Call Record Parser Tool

Description

Parse one LCOV function-hit record.

Coverage records distinguish source locations, hit counts and unknown observations. Parsing one LCOV line or branch token preserves its metadata but does not establish that source mapping, collection or overall coverage is correct.

Parse one LCOV function-hit record.

When to use this tool

Use Development: LCOV Function Call Record Parser when inspecting one bounded coverage-record token.

How to use the tool and how it works

Enter line. Use the units and conventions below.
Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
Read result. Expand result to inspect the returned fields.

Parse one LCOV function-hit record. Accept FNDA: followed by a 1-9-digit count, comma and nonempty function name without CR/LF; return callCount and functionName.^[1]

Input field	Meaning and units	Accepted input
line	Line	Required. Text. Implementation limit: 8192 Unicode code points and 16384 UTF-16 code units.

Output field	Interpretation	Returned shape
result	Returned object; expand its named members below.	Required. Object.
result.callCount	Call Count	Calculated result member: number.
result.functionName	Function Name	Calculated result member: string.

json

{
  "input": {
    "line": "FNDA:12,foo,bar"
  },
  "output": {
    "result": {
      "callCount": 12,
      "functionName": "foo,bar"
    }
  }
}

Limitations and assumptions

Function names may contain commas; no function existence or coverage completeness is verified.
Outputs are nested inside result. Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.

Alternative or Complementary methods

Use the complete coverage report and matching source revision for aggregation, validation and meaningful testing conclusions.

References

Calculation and input contract: development/lcov-function-call-record-parser — tool.io

Similar or alternative tools

Development: LCOV Branch Record Line Parser
Parse one bounded LCOV branch record.
LCOV Line Hit Record Fields
Parse one bounded LCOV line-hit record.