# core/parsers/tool.oxlint.parser.ts

> 32 lines of code and 8 definitions.

Tree: GovLab Quality
Language: typescript
Layer: processing
Canonical: https://banes-lab.com/anatomy/quality#file-quality-core-parsers-tool-oxlint-parser-ts
Source text: https://banes-lab.com/source/quality/core/parsers/tool.oxlint.parser.ts.txt

Listed in [core/parsers](https://banes-lab.com/api/source/quality/core/parsers.md), after [core/parsers/tool.madge.parser.ts](https://banes-lab.com/source/quality/core/parsers/tool.madge.parser.ts.md) and before [core/parsers/tool.perlcritic.parser.ts](https://banes-lab.com/source/quality/core/parsers/tool.perlcritic.parser.ts.md).

## Definitions

- `parseOxlintOutput` (lexical_declaration, line 23, exported)
- `ruleIdFrom` (lexical_declaration, line 9)
- `firstSpan` (lexical_declaration, line 18)
- `TOOL` (lexical_declaration, line 7)
- `open` (lexical_declaration, line 10)
- `close` (lexical_declaration, line 11)
- `[label]` (lexical_declaration, line 19)
- `span` (lexical_declaration, line 25, exported)

## Contained in

- [core/parsers](https://banes-lab.com/anatomy/quality/folder-quality-core-parsers.md)

## Uses

- [core/factories/finding.factory.ts](https://banes-lab.com/source/quality/core/factories/finding.factory.ts.md)
- [core/parsers/record.parser.ts](https://banes-lab.com/source/quality/core/parsers/record.parser.ts.md)
- [core/selectors/record.selector.ts](https://banes-lab.com/source/quality/core/selectors/record.selector.ts.md)

## Used by

- [core/adapters/tool.oxlint.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.oxlint.adapter.ts.md)

## Linked from

- [core/adapters](https://banes-lab.com/anatomy/quality/folder-quality-core-adapters.md)
- [core/factories](https://banes-lab.com/anatomy/quality/folder-quality-core-factories.md)
- [core/parsers](https://banes-lab.com/anatomy/quality/folder-quality-core-parsers.md)
- [core/selectors](https://banes-lab.com/anatomy/quality/folder-quality-core-selectors.md)

## Source

```typescript
import { numberField, recordAt, recordsAt, stringField } from "#core/selectors/record.selector";
import type { Finding } from "#types/finding.types";
import { POSITION } from "#configuration/constants/tool.constants";
import { jsonRecordsAt } from "#core/parsers/record.parser";
import { toolFinding } from "#core/factories/finding.factory";

const TOOL = "oxlint";

const ruleIdFrom = function ruleIdFrom(code: string): string {
    const open = code.indexOf("(");
    const close = code.lastIndexOf(")");
    if (open === -1 || close === -1 || close < open) {
        return code || TOOL;
    }
    return `${code.slice(0, open)}/${code.slice(open + 1, close)}`;
};

const firstSpan = function firstSpan(diagnostic: Record<string, unknown>): Record<string, unknown> {
    const [label] = recordsAt(diagnostic, "labels");
    return label === undefined ? {} : recordAt(label, "span");
};

export const parseOxlintOutput = function parseOxlintOutput(stdout: string, ecosystem: string): Finding[] {
    return jsonRecordsAt(stdout, "diagnostics").map((diagnostic) => {
        const span = firstSpan(diagnostic);
        return toolFinding({
            column: numberField(span, "column", POSITION),
            ecosystem,
            file: stringField(diagnostic, "filename"),
            line: numberField(span, "line", POSITION),
            message: stringField(diagnostic, "message"),
            ruleId: ruleIdFrom(stringField(diagnostic, "code", TOOL)),
            tool: TOOL,
        });
    });
};
```