zod-to-x
Version:
Multi language types generation from Zod schemas.
246 lines (245 loc) • 10.8 kB
TypeScript
import { ASTAliasedTypes, ASTEnum, ASTIntersection, ASTNode, ASTNodes, ASTObject, ASTType, ASTUnion } from "../core";
import { TIndentationLevels } from "../utils/string_utils";
/**
* Optional user settings
*/
export interface IZodToXOpt extends Record<string, any> {
/**
* Text to add as a comment at the beginning of the output.
* Useful for adding headers or documentation notes.
*/
header?: string;
/**
* Number of spaces to use for indentation in the generated code.
* Defaults to 4 if not specified.
*/
indent?: number;
/**
* Determines whether to include comments in the transpiled code.
* Defaults to `true`.
*/
includeComments?: boolean;
/**
* Every external type will be imported from the file where it is defined. Default: true
*/
useImports?: boolean;
}
/**
* Abstract base class for transpiling Zod schemas into other programming languages.
* Extend this class and implement the abstract methods to define how each Zod type
* should be converted to the target language's syntax.
*/
export declare abstract class Zod2X<T extends IZodToXOpt> {
protected output: string[];
protected indent: TIndentationLevels;
protected preImports: Set<string>;
protected imports: Set<string>;
protected postImports: Set<string>;
protected abstract readonly commentKey: string;
protected opt: Partial<T>;
protected constructor(opt: Partial<T>);
/**
* Executes custom logic before and the transpilation process begins.
* Useful for additional behaviour required by transpilation procedures.
*/
protected abstract runBefore(): void;
protected abstract runAfter(): void;
/**
* Adds an import statement for a specific file.
* @param filename - The name of the file to import from.
* @param namespace - The namespace to use for the imported types.
*/
protected abstract addImportFromFile(filename: string, namespace: string): string;
/**
* Returns the accessible type name from an external namespace.
* @param namespace
* @param typeName
*/
protected abstract getTypeFromExternalNamespace(namespace: string, typeName: string): string;
/**
* Returns the translation of generic templates for a given AST node.
*/
protected abstract getGenericTemplatesTranslation(data: ASTNode): string | undefined;
/**
* For Layered Modeling.
* If a property type is an imported type, without any modification, the transpiled type will be
* an inherited type from the imported type.
* @param name
* @param parentNamespace
* @param aliasOf
*/
protected abstract addExtendedType(name: string, parentNamespace: string, aliasOf: string): void;
/**
* Returns the keyword representing a string type in the target language.
*/
protected abstract getStringType(): string;
/**
* Returns the keyword representing a boolean type in the target language.
*/
protected abstract getBooleanType(): string;
/**
* Returns the keyword representing a number type in the target language.
* @param isInt - Indicates if the number is an integer.
* @param range - Optional range constraints for the number.
*/
protected abstract getNumberType(isInt: boolean, range: {
min?: number;
max?: number;
}): string;
/**
* Returns the representation of a literal string or number in the target language.
* @param value - The literal value to represent.
* @param parentEnumNameKey - Optional tuple containing the parent enum name and key reference.
*/
protected abstract getLiteralStringType(value: string | number | boolean, parentEnumNameKey?: [string, string]): string | number;
/**
* Returns the keyword representing a generic 'any' type in the target language.
*/
protected abstract getAnyType(): string;
/**
* Returns the keyword representing a date type in the target language.
* @returns A string representing the date type.
*/
protected abstract getDateType(): string;
/**
* Returns the representation of a tuple type in the target language.
* @param itemsType - An array of strings representing the types of the tuple's elements.
* @returns A string representing the tuple type.
*/
protected abstract getTupleType(itemsType: string[]): string;
/**
* Returns the representation of a set type in the target language.
* @param itemType - A string representing the type of the set's items.
* @returns A string representing the set type.
*/
protected abstract getSetType(itemType: string): string;
/**
* Returns the representation of a map type in the target language.
* @param keyType - A string representing the type of the map's keys.
* @param valueType - A string representing the type of the map's values.
* @returns A string representing the map type.
*/
protected abstract getMapType(keyType: string, valueType: string): string;
/**
* Returns the representation of a record type in the target language.
* @param keyType - A string representing the type of the record's keys.
* @param valueType - A string representing the type of the record's values.
* @returns A string representing the record type.
*/
protected abstract getRecordType(keyType: string, valueType: string): string;
/**
* Returns the representation of an intersection type in the target language.
* @param itemsType - An array of strings representing the types to intersect.
* @returns A string representing the intersection type.
*/
protected abstract getIntersectionType(itemsType: string[]): string;
/**
* Returns the representation of a union type in the target language.
* @param itemsType - An array of strings representing the types to union.
* @returns A string representing the union type.
*/
protected abstract getUnionType(itemsType: string[]): string;
/**
* Returns the representation of an array type in the target language, accounting for array depth.
* @param arrayType - A string representing the type of the array's elements.
* @param arrayDeep - The number of dimensions for multi-dimensional arrays.
* @returns A string representing the array type.
*/
protected abstract getArrayType(arrayType: string, arrayDeep: number): string;
/**
* Transpiles an enum type from the AST to the target language.
* @param data - The AST node representing the enum.
*/
protected abstract transpileEnum(data: ASTEnum): void;
/**
* Transpiles a struct (object) type from the AST to the target language.
* @param data - The AST node representing the struct.
*/
protected abstract transpileStruct(data: ASTObject): void;
/**
* Transpiles a union type from the AST to the target language.
* @param data - The AST node representing the union.
*/
protected abstract transpileUnion(data: ASTUnion): void;
/**
* Transpiles an intersection type from the AST to the target language.
* @param data - The AST node representing the intersection.
*/
protected abstract transpileIntersection(data: ASTIntersection): void;
/**
* Transpiles an aliased type (e.g., array) from the AST to the target language.
* @param data - The AST node representing the aliased type.
*/
protected abstract transpileAliasedType(data: ASTAliasedTypes): void;
/**
* Returns a comment.
*/
protected getComment: (data: string, indent?: string) => string;
/**
* Determines if the given type token can be transpiled into the target language.
* @param token - The type token to check.
* @returns `true` if the type is transpilerable; otherwise, `false`.
*/
protected isTranspilerable(token: ASTNode): boolean;
/**
* Determines if the given AST node represents an aliased type. *
* @param token - The AST node to evaluate.
* @returns `true` if the token is an instance of an aliased type, otherwise `false`.
*/
protected isAliasedType(token: ASTNode): boolean;
protected push0: (data: string) => number;
protected push1: (data: string) => number;
protected push2: (data: string) => number;
protected push3: (data: string) => number;
/**
* Adds a comment to the transpiled output.
* @param data - The comment text to add.
* @param indent - Optional indentation to apply before the comment.
*/
protected addComment(data?: string, indent?: string): void;
/**
* Retrieves the equivalent type representation of an AST node in the target language.
* @param token - The AST node or transpilerable type to convert.
* @returns A string representing the type in the target language.
*/
protected getAttributeType(token: ASTType): string;
/**
* Determines whether a given type is an external type import.
*
* @param item - An object containing the `parentFile` and `parentNamespace`
* properties of the type to evaluate.
* @returns `true` if the type is an external type import; otherwise, `false`.
*/
protected isExternalTypeImport(item: ASTNode): boolean;
/**
* Adds an external type import to the transpiler's imports if the provided transpiled item
* is located into another file and namespace, and if the `useImports` option is not disabled.
*
* @param item - An object of type `TranspilerableTypes` containing information
* about the type to be imported, including its parent file and namespace.
* @returns `true` if the import was successfully added, otherwise `false`.
*/
protected addExternalTypeImport(item: ASTNode): boolean;
/**
* Transpiles a single item from the transpiler queue.
* @param item - The transpilerable type to transpile.
*/
private _transpileItem;
/**
* Constructs and returns an array of strings representing the header section
* of the transpiled output. The header may include custom comments, pre-imports,
* imports, and post-imports, depending on the provided options and internal state.
*
* Each section is separated by an empty string for readability.
*
* @returns An array of strings representing the header section.
*
*/
private _getHeader;
/**
* Transpiles a queue of AST nodes into the target language.
* @param transpilerQueue - An array of transpilerable types (AST nodes with names).
* @returns The transpiled code as a string.
*/
transpile(transpilerQueue: ASTNodes): string;
}