Function declaredErrorFields

packages/httpapi-codegen/src/index.ts:945–965

(schema: Schema.Top)

}

function declaredErrorFields(schema: Schema.Top) {
  if (!SchemaAST.isDeclaration(schema.ast) || schema.ast.annotations?.["~effect/Schema/Class"] === undefined) {
    return undefined
  }
  const fields = schema.ast.typeParameters[0]
  if (!SchemaAST.isObjects(fields) || fields.indexSignatures.length > 0) return undefined
  const key = fields.propertySignatures.find((field) => field.name === "_tag" || field.name === "name")?.name
  if (key !== "_tag" && key !== "name") return undefined
  const tag = fields.propertySignatures.find((field) => field.name === key)?.type
  if (tag === undefined || !SchemaAST.isLiteral(tag) || typeof tag.literal !== "string") return undefined
  return {
    key,
    tag: tag.literal,
    identifier: SchemaAST.resolveIdentifier(schema.ast) ?? tag.literal,
    fields: fields.propertySignatures.flatMap((field) =>
      field.name === key || typeof field.name !== "string"
        ? []
        : [[field.name, Schema.make(field.type), SchemaAST.isOptional(field.type)] as const],
    ),
  }
}

function isDataEnvelope(schema: Schema.Top) {
  if (isStreamSchema(schema) || HttpApiSchema.isNoContent(schema.ast)) return false