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feat: Use dataCollection.frameContextLines for ContextLines integration #21323

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feat: Use dataCollection.frameContextLines for ContextLines integration #21323

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f7e4be9
feat: Use `dataCollection.frameContextLines` for ContextLines integra…
s1gr1d Jun 3, 2026
144b64a
change default to 7 lines
s1gr1d Jun 3, 2026
58b0b3c
update test
s1gr1d Jun 3, 2026
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9 changes: 6 additions & 3 deletions packages/browser/src/integrations/contextlines.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -7,22 +7,25 @@ const DEFAULT_LINES_OF_CONTEXT = 7;

const INTEGRATION_NAME = 'ContextLines';

// TODO(v11): Use `dataCollection.frameContextLines` default (5)
interface ContextLinesOptions {
/**
* Sets the number of context lines for each frame when loading a file.
* Defaults to 7.
*
* Set to 0 to disable loading and inclusion of source files.
*
* When set, this option takes precedence over `dataCollection.frameContextLines`.
**/
frameContextLines?: number;
}

const _contextLinesIntegration = ((options: ContextLinesOptions = {}) => {
const contextLines = options.frameContextLines != null ? options.frameContextLines : DEFAULT_LINES_OF_CONTEXT;

return {
name: INTEGRATION_NAME,
processEvent(event) {
processEvent(event, _hint, client) {
const contextLines =
options.frameContextLines ?? client?.getDataCollectionOptions().frameContextLines ?? DEFAULT_LINES_OF_CONTEXT;
return addSourceContext(event, contextLines);
},
};
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4 changes: 2 additions & 2 deletions packages/core/src/utils/data-collection/defaultPiiToCollectionOptions.ts
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Expand Up @@ -14,7 +14,7 @@ export function defaultPiiToCollectionOptions(sendDefaultPii?: boolean): Resolve
queryParams: true,
genAI: { inputs: true, outputs: true },
stackFrameVariables: true,
frameContextLines: 5,
frameContextLines: 7, // default should be 5, but ContextLines integration uses 7
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}
: {
userInfo: false,
Expand All @@ -24,6 +24,6 @@ export function defaultPiiToCollectionOptions(sendDefaultPii?: boolean): Resolve
queryParams: { deny: PII_HEADER_SNIPPETS },
genAI: { inputs: false, outputs: false },
stackFrameVariables: true,
frameContextLines: 5,
frameContextLines: 7, // default should be 5, but ContextLines integration uses 7
};
}
11 changes: 7 additions & 4 deletions packages/deno/src/integrations/contextlines.ts
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Expand Up @@ -36,22 +36,25 @@ async function readSourceFile(filename: string): Promise<string | null> {
return content;
}

// TODO(v11): Use `dataCollection.frameContextLines` default (5)
interface ContextLinesOptions {
/**
* Sets the number of context lines for each frame when loading a file.
* Defaults to 7.
*
* Set to 0 to disable loading and inclusion of source files.
*/
*
* When set, this option takes precedence over `dataCollection.frameContextLines`.
**/
frameContextLines?: number;
}

const _contextLinesIntegration = ((options: ContextLinesOptions = {}) => {
const contextLines = options.frameContextLines !== undefined ? options.frameContextLines : DEFAULT_LINES_OF_CONTEXT;

return {
name: INTEGRATION_NAME,
processEvent(event) {
processEvent(event, _hint, client) {
const contextLines =
options.frameContextLines ?? client?.getDataCollectionOptions().frameContextLines ?? DEFAULT_LINES_OF_CONTEXT;
return addSourceContext(event, contextLines);
},
};
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9 changes: 6 additions & 3 deletions packages/node-core/src/integrations/contextlines.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -14,12 +14,15 @@ const INTEGRATION_NAME = 'ContextLines';
export const MAX_CONTEXTLINES_COLNO: number = 1000;
export const MAX_CONTEXTLINES_LINENO: number = 10000;

// TODO(v11): Use `dataCollection.frameContextLines` default (5)
interface ContextLinesOptions {
/**
* Sets the number of context lines for each frame when loading a file.
* Defaults to 7.
*
* Set to 0 to disable loading and inclusion of source files.
*
* When set, this option takes precedence over `dataCollection.frameContextLines`.
**/
frameContextLines?: number;
}
Expand Down Expand Up @@ -398,11 +401,11 @@ function makeContextRange(line: number, linecontext: number): [start: number, en

/** Exported only for tests, as a type-safe variant. */
export const _contextLinesIntegration = ((options: ContextLinesOptions = {}) => {
const contextLines = options.frameContextLines !== undefined ? options.frameContextLines : DEFAULT_LINES_OF_CONTEXT;

return {
name: INTEGRATION_NAME,
processEvent(event) {
processEvent(event, _hint, client) {
const contextLines =
options.frameContextLines ?? client?.getDataCollectionOptions().frameContextLines ?? DEFAULT_LINES_OF_CONTEXT;
return addSourceContext(event, contextLines);
},
};
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52 changes: 52 additions & 0 deletions packages/node-core/test/integrations/contextlines.test.ts
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Expand Up @@ -231,4 +231,56 @@ describe('ContextLines', () => {
expect(readStreamSpy).not.toHaveBeenCalled();
});
});

describe('dataCollection.frameContextLines', () => {
function clientWithFrameContextLines(frameContextLines: number) {
return {
getDataCollectionOptions: () => ({ frameContextLines }),
} as unknown as Parameters<NonNullable<typeof contextLines.processEvent>>[2];
}

test('uses dataCollection.frameContextLines when no integration option is set', async () => {
contextLines = _contextLinesIntegration();
const frames = parseStackFrames(defaultStackParser, new Error('test'));

await contextLines.processEvent(
{ exception: { values: [{ stacktrace: { frames } }] } },
{},
clientWithFrameContextLines(2),
);

const frame = frames.find(f => f.context_line !== undefined);
expect(frame?.pre_context).toHaveLength(2);
expect(frame?.post_context).toHaveLength(2);
});

test('does not read source files when dataCollection.frameContextLines is 0', async () => {
contextLines = _contextLinesIntegration();
const readStreamSpy = vi.spyOn(fs, 'createReadStream');
const frames = parseStackFrames(defaultStackParser, new Error('test'));

await contextLines.processEvent(
{ exception: { values: [{ stacktrace: { frames } }] } },
{},
clientWithFrameContextLines(0),
);

expect(readStreamSpy).not.toHaveBeenCalled();
});

test('integration option takes precedence over dataCollection.frameContextLines', async () => {
contextLines = _contextLinesIntegration({ frameContextLines: 1 });
const frames = parseStackFrames(defaultStackParser, new Error('test'));

await contextLines.processEvent(
{ exception: { values: [{ stacktrace: { frames } }] } },
{},
clientWithFrameContextLines(5),
);

const frame = frames.find(f => f.context_line !== undefined);
expect(frame?.pre_context).toHaveLength(1);
expect(frame?.post_context).toHaveLength(1);
});
});
});
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