effectGenUsesAdapter
August 4, 2026 ยท View on GitHub
Warns when using the deprecated adapter parameter in Effect.gen
| Property | Value |
|---|---|
| Category | Anti-pattern |
| Default severity | warning |
| Fixable | No |
| Effect versions | v3, v4 |
| Diagnostic codes | TS377027 |
| Language Service name | effectGenUsesAdapter |
| Oxlint name | effecttsgo/effect-gen-uses-adapter |
Preview
import * as Effect from "effect/Effect"
export const preview = Effect.gen(function*(_) {
/**
^ effecttsgo(effect-gen-uses-adapter): The adapter of Effect.gen is not required anymore, it is now just an alias of pipe.
*/
return yield* Effect.succeed(1)
})
Language Service Configuration
See the Language Service setup guide for installation instructions.
{
"$schema": "./node_modules/@effect/tsgo/schema.json",
"compilerOptions": {
"plugins": [
{
"name": "@effect/language-service",
"diagnosticSeverity": {
"effectGenUsesAdapter": "warning"
}
}
]
}
}
Oxlint Configuration
See the Oxlint setup guide for installation and patching instructions.
{
"$schema": "./node_modules/@effect/tsgo/oxlint-schema.json",
"options": {
"typeAware": true
},
"plugins": ["effecttsgo"],
"rules": {
"effecttsgo/effect-gen-uses-adapter": "warn"
}
}