effectInVoidSuccess

Detects nested Effects in void success channels that may cause unexecuted effects

Property	Value
Category	Anti-pattern
Default severity	warning
Fixable	No
Effect versions	v3, v4
Diagnostic codes	TS377020
Language Service name	effectInVoidSuccess
Oxlint name	effecttsgo/effect-in-void-success

Preview

import * as Effect from "effect/Effect"

export const preview: Effect.Effect<void> = Effect.succeed(
/**
             ^^^^^^^ effecttsgo(effect-in-void-success): There is a nested 'Effect<void, never, never>' in the 'void' success channel, beware that this could lead to nested Effect<Effect<...>> that won't be executed.
*/
  Effect.log("nested")
)

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": {
          "effectInVoidSuccess": "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-in-void-success": "warn"
  }
}