twitchtv/circuitgen

circuitgen's Issues

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allow printing to stdout if no output file is specified

It is desirable to allow printing of generated code to stdout rather than directly to a file. Printing to stdout makes it easier to integrate circuitgen with build systems such as Bazel or Gradle that have built-in directives and rules for redirecting command output into new files as part of their build step. Printing to stdout is a standard feature of most code generation tools. See destination flag of GoMock or the - argument of Counterfeiter. This change is backwards compatible with existing circuitgen usage.

See #12

Support major version suffix CLI param

github.com/cep21/circuit has moved to modules. The API for github.com/cep21/circuit and github.com/cep21/circuit/v3 are the same, however if a project imports github.com/cep21/circuit/v3, the circuit manager won't be able to be passed to the wrapper, because the wrappers import github.com/cep21/circuit.

The generated wrappers could be configured to import github.com/cep21/circuit/v3 with --major-version {int}. Values less than 3 would import github.com/cep21/circuit, and values >= 3 would import github.com/cep21/circuit/v{value}

Fail generation if no functions are wrappable

circuitgen will generate a wrapper that fails compilation if there are no wrappable functions. If there are no wrappable functions, there is not much purpose to use a wrapper so fail the generation