How to use typechain - 10 common examples

transformFile(file: TFileDesc): TFileDesc[] | void {
    const fileExt = getFileExtension(file.path);

    // For json files with both ABI and bytecode, both the contract typing and factory can be
    // generated at once. For split files (.abi and .bin) we don't know in which order they will
    // be transformed -- so we temporarily store whichever comes first, and generate the factory
    // only when both ABI and bytecode are present.

    // TODO we might want to add a configuration switch to control whether we want to generate the
    // factories, or just contract type declarations.

    if (fileExt === ".bin") {
      return this.transformBinFile(file);
    }
    return this.transformAbiOrFullJsonFile(file);
  }

transformBinFile(file: TFileDesc): TFileDesc[] | void {
    const name = getFilename(file.path);
    const bytecode = extractBytecode(file.contents);

    if (!bytecode) {
      return;
    }

    if (this.contractCache[name]) {
      const { contract, abi } = this.contractCache[name];
      delete this.contractCache[name];
      return [this.genContractFactoryFile(contract, abi, bytecode)];
    } else {
      this.bytecodeCache[name] = bytecode;
    }
  }

transformFile(file: TFileDesc): TFileDesc | void {
    const abi = extractAbi(file.contents);
    const isEmptyAbi = abi.length === 0;
    if (isEmptyAbi) {
      return;
    }

    const name = getFilename(file.path);

    const contract = parse(abi, name);

    this.contracts.push(contract);
  }

transformFile(file: TFileDesc): TFileDesc | void {
    const abi = extractAbi(file.contents);
    const isEmptyAbi = abi.length === 0;
    if (isEmptyAbi) {
      return;
    }

    const name = getFilename(file.path);

    const contract = parse(abi, name);

    return {
      path: join(this.outDirAbs, `${name}.d.ts`),
      contents: codegen(contract),
    };
  }

transformFile(file: TFileDesc): TFileDesc | void {
    const abi = extractAbi(file.contents);
    const isEmptyAbi = abi.length === 0;
    if (isEmptyAbi) {
      return;
    }

    const name = getFilename(file.path);

    const contract = parse(abi, name);

    return {
      path: join(this.outDirAbs, `${name}.d.ts`),
      contents: codegen(contract),
    };
  }

transformAbiOrFullJsonFile(file: TFileDesc): TFileDesc[] | void {
    const name = getFilename(file.path);
    const abi = extractAbi(file.contents);

    if (abi.length === 0) {
      return;
    }

    const contract = parse(abi, name);
    const bytecode = extractBytecode(file.contents) || this.bytecodeCache[name];

    if (bytecode) {
      return [
        this.genContractTypingsFile(contract),
        this.genContractFactoryFile(contract, abi, bytecode),
      ];
    } else {
      this.contractCache[name] = { abi, contract };

transformAbiOrFullJsonFile(file: TFileDesc): TFileDesc[] | void {
    const name = getFilename(file.path);
    const abi = extractAbi(file.contents);

    if (abi.length === 0) {
      return;
    }

    const contract = parse(abi, name);
    const bytecode = extractBytecode(file.contents) || this.bytecodeCache[name];

    if (bytecode) {
      return [
        this.genContractTypingsFile(contract),
        this.genContractFactoryFile(contract, abi, bytecode),
      ];
    } else {
      this.contractCache[name] = { abi, contract };
      return [this.genContractTypingsFile(contract)];

transformFile(file: TFileDesc): TFileDesc | void {
    const abi = extractAbi(file.contents);
    const isEmptyAbi = abi.length === 0;
    if (isEmptyAbi) {
      return;
    }

    const name = getFilename(file.path);

    const contract = parse(abi, name);

    return {
      path: join(this.outDirAbs, `${name}.d.ts`),
      contents: codegen(contract),
    };
  }

transformFile(file: TFileDesc): TFileDesc | void {
    const abi = extractAbi(file.contents);
    const isEmptyAbi = abi.length === 0;
    if (isEmptyAbi) {
      return;
    }

    const name = getFilename(file.path);

    const contract = parse(abi, name);

    this.contracts.push(contract);
  }

transformFile(file: TFileDesc): TFileDesc | void {
    const abi = extractAbi(file.contents);
    const isEmptyAbi = abi.length === 0;
    if (isEmptyAbi) {
      return;
    }

    const name = getFilename(file.path);

    const contract = parse(abi, name);

    return {
      path: join(this.outDirAbs, `${name}.d.ts`),
      contents: codegen(contract),
    };
  }