feat(linter/plugins): implement context.getSourceCode API

[camc314]

fixes #15567

[camc314]

• feat(linter/plugins): implement context.getSourceCode API #15599 👈 (View in Graphite)
• main

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[Copilot]

Pull Request Overview

This PR implements the deprecated context.getSourceCode() API to support backward compatibility with ESLint plugins. The implementation returns the same SourceCode object as context.sourceCode, with a guard against calling it when no file is being linted.

Key changes:

• Implements getSourceCode() to return SOURCE_CODE instead of throwing an error
• Adds validation to prevent calling getSourceCode() when filePath is null
• Adds test assertions to verify getSourceCode() returns the same value as sourceCode property

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
apps/oxlint/src-js/plugins/context.ts	Implements getSourceCode() method to return SOURCE_CODE with null check for filePath
apps/oxlint/test/fixtures/sourceCode/plugin.ts	Adds test assertions verifying getSourceCode() returns same value as sourceCode in both create and createOnce contexts

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[overlookmotel]

Oh sorry, I didn't see your PR before I did mine. #15606