ESLint 10 compatibility: context.getSourceCode() is removed

[aklkv]

Summary

eslint-plugin-ember fails with ESLint 10 due to the removed context.getSourceCode() API.

Error

TypeError: Error while loading rule 'ember/avoid-leaking-state-in-ember-objects': context.getSourceCode is not a function
Occurred while linting /path/to/file.gts
    at Object.create (/node_modules/eslint-plugin-ember/lib/rules/avoid-leaking-state-in-ember-objects.js:83:32)

Environment

• eslint-plugin-ember: 12.7.5
• eslint: 10.0.0

Details

ESLint 10 removed the deprecated context.getSourceCode() method. Rules should use context.sourceCode property instead.

See ESLint migration guide: https://eslint.org/docs/latest/use/migrate-to-10.0.0

Suggested Fix

Replace all occurrences of context.getSourceCode() with backward-compatible access:

// Before
const sourceCode = context.getSourceCode();

// After (works with ESLint 8, 9, and 10)
const sourceCode = context.sourceCode ?? context.getSourceCode();

// Or if dropping ESLint <9 support:
const sourceCode = context.sourceCode;

Affected files likely include any rule using getSourceCode() in lib/rules/.

[NullVoxPopuli]

is that sourceCode thing the only delta between 8 and 10?

[NullVoxPopuli]

This should be in the v13 release (not out yet at the time of commenting)