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import { Evaluator } from './valuetypes.ts';import { TypeBase } from './datatypes/datatype-base.ts';import { CastError, DataType, nil, QueryError } from './interfaces.ts';import { _ISchema, _IType } from './interfaces-private.ts';
export class CustomEnumType extends TypeBase<string> {
    get primary(): DataType {        return this.name as any;    }
    get name(): string {        return this._name;    }
    constructor(readonly schema: _ISchema        , private readonly _name: string        , readonly values: string[]) {        super();    }
    install() {        this.schema._registerType(this);    }
    doCanCast(to: _IType) {        return to.primary === DataType.text;    }
    doCast(value: Evaluator<string>, to: _IType<string>): Evaluator<any> | nil {        return value;    }
    prefer(type: _IType<any>): _IType | nil {        return this;    }
    doCanBuildFrom(from: _IType): boolean | nil {        return from.primary === DataType.text;    }
    doBuildFrom(value: Evaluator<string>, from: _IType<string>): Evaluator<string> | nil {        return value            .setConversion((raw: string) => {                if (!this.values.includes(raw)) {                    throw new QueryError(`invalid input value for enum ${this.name}: "${raw}"`);                }                return raw;            }, x => `(${x})::${this.name}`                , conv => ({ conv, toCenum: this.name }))    }}