Struct Opts

pub struct Opts {

    pub format: bool,
    pub std_feature: bool,
    pub raw_strings: bool,
    pub skip: Vec<String>,
    pub stubs: bool,
    pub export_prefix: Option<String>,
    pub ownership: Ownership,
    pub runtime_path: Option<String>,
    pub bitflags_path: Option<String>,
    pub additional_derive_attributes: Vec<String>,
    pub with: Vec<(String, WithOption)>,
    pub generate_all: bool,
    pub type_section_suffix: Option<String>,
    pub disable_run_ctors_once_workaround: bool,
    pub default_bindings_module: Option<String>,
    pub export_macro_name: Option<String>,
    pub pub_export_macro: bool,
    pub generate_unused_types: bool,
    pub disable_custom_section_link_helpers: bool,
    pub async_: AsyncConfig,
}

Fields

format: bool

Whether or not a formatter is executed to format generated code.

std_feature: bool

If true, code generation should qualify any features that depend on std with cfg(feature = "std").

raw_strings: bool

If true, code generation should pass borrowed string arguments as &[u8] instead of &str. Strings are still required to be valid UTF-8, but this avoids the need for Rust code to do its own UTF-8 validation if it doesn’t already have a &str.

skip: Vec<String>

Names of functions to skip generating bindings for.

stubs: bool

If true, generate stub implementations for any exported functions, interfaces, and/or resources.

export_prefix: Option<String>

Optionally prefix any export names with the specified value.

This is useful to avoid name conflicts when testing.

ownership: Ownership

Whether to generate owning or borrowing type definitions.

Valid values include:

• owning: Generated types will be composed entirely of owning fields, regardless of whether they are used as parameters to imports or not.

• borrowing: Generated types used as parameters to imports will be “deeply borrowing”, i.e. contain references rather than owned values when applicable.

• borrowing-duplicate-if-necessary: As above, but generating distinct types for borrowing and owning, if necessary.

runtime_path: Option<String>

The optional path to the wit-bindgen runtime module to use.

This defaults to wit_bindgen::rt.

bitflags_path: Option<String>

The optional path to the bitflags crate to use.

This defaults to wit_bindgen::bitflags.

additional_derive_attributes: Vec<String>

Additional derive attributes to add to generated types. If using in a CLI, this flag can be specified multiple times to add multiple attributes.

These derive attributes will be added to any generated structs or enums

with: Vec<(String, WithOption)>

Remapping of interface names to rust module names.

Argument must be of the form k=v and this option can be passed multiple times or one option can be comma separated, for example k1=v1,k2=v2.

generate_all: bool

Indicates that all interfaces not specified in with should be generated.

type_section_suffix: Option<String>

Add the specified suffix to the name of the custome section containing the component type.

disable_run_ctors_once_workaround: bool

Disable a workaround used to prevent libc ctors/dtors from being invoked too much.

default_bindings_module: Option<String>

Changes the default module used in the generated export! macro to something other than self.

export_macro_name: Option<String>

Alternative name to use for the export! macro if one is generated.

pub_export_macro: bool

Ensures that the export! macro will be defined as pub so it is a candidate for being exported outside of the crate.

generate_unused_types: bool

Whether to generate unused structures, not generated by default (false)

disable_custom_section_link_helpers: bool

Whether or not to generate helper function/constants to help link custom sections into the final output.

Disabling this can shave a few bytes off a binary but makes library-based usage of generate! prone to breakage.

async_: AsyncConfig

Determines which functions to lift or lower async, if any.

Accepted values are: - none - all - some=[,…], where each is of the form: - import: or - export:

Implementations

impl Opts

pub fn build(self) -> Box<dyn WorldGenerator>

Trait Implementations

impl Clone for Opts

fn clone(&self) -> Opts

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Opts

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Opts

fn default() -> Opts

Returns the “default value” for a type.