Struct capnpc::CompilerCommand

pub struct CompilerCommand { /* fields omitted */ }

A builder object for schema compiler commands.

Implementations

impl CompilerCommand

pub fn new() -> CompilerCommand

Creates a new, empty command.

pub fn file<P>(&mut self, path: P) -> &mut CompilerCommand where
    P: AsRef<Path>, 

Adds a file to be compiled.

pub fn src_prefix<P>(&mut self, prefix: P) -> &mut CompilerCommand where
    P: AsRef<Path>, 

Adds a –src-prefix flag. For all files specified for compilation that start with prefix, removes the prefix when computing output filenames.

pub fn import_path<P>(&mut self, dir: P) -> &mut CompilerCommand where
    P: AsRef<Path>, 

Adds an –import_path flag. Adds dir to the list of directories searched for absolute imports.

pub fn no_standard_import(&mut self) -> &mut CompilerCommand

Adds the –no-standard-import flag, indicating that the default import paths of /usr/include and /usr/local/include should not bet included.

pub fn output_path<P>(&mut self, path: P) -> &mut CompilerCommand where
    P: AsRef<Path>, 

Sets the output directory of generated code. Default is OUT_DIR

pub fn capnp_executable<P>(&mut self, path: P) -> &mut CompilerCommand where
    P: AsRef<Path>, 

Specify the executable which is used for the ‘capnp’ tool. When this method is not called, the command looks for a name ‘capnp’ on the system (e.g. in working directory or in PATH environment variable).

pub fn default_parent_module(
    &mut self,
    default_parent_module: Vec<String>
) -> &mut CompilerCommand

Sets the default parent module. This indicates the scope in your crate where you will add a module containing the generated code. For example, if you set this option to vec!["foo".into(), "bar".into()], and you are generating code for baz.capnp, then your crate should have this structure:

pub mod foo {
   pub mod bar {
       pub mod baz_capnp {
           include!(concat!(env!("OUT_DIR"), "/baz_capnp.rs"));
       }
   }
}

This option can be overridden by the parentModule annotation defined in rust.capnp.

If this option is unset, the default is the crate root.

pub fn run(&mut self) -> Result<()>

Runs the command. Returns an error if OUT_DIR or a custom output directory was not set, or if capnp compile fails.