overriddenSchemaConstructor

Prevents overriding constructors in Schema classes which breaks decoding behavior

Property	Value
Category	Correctness
Default severity	error
Fixable	Yes
Effect versions	v3, v4
Diagnostic codes	TS377044
Language Service name	overriddenSchemaConstructor
Oxlint name	effecttsgo/overridden-schema-constructor

Preview

import * as Schema from "effect/Schema"

export class User extends Schema.Class<User>("User")({ name: Schema.String }) {
  constructor(readonly input: { name: string }) { super(input) }
/**
  ^^^^^^^^^^^ effecttsgo(overridden-schema-constructor): This Schema subclass defines its own constructor. For Schema classes, constructor overrides break decoding behavior for the class shape. Custom construction can be expressed through a static `new` method instead.
*/
}

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": {
          "overriddenSchemaConstructor": "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/overridden-schema-constructor": "warn"
  }
}