wit_bindgen::generate!({
    world: "femark",

    exports: {
        world: MyFemark,
    },
});

struct MyFemark;

impl Guest for MyFemark {
    fn run() {
        print("Hello, world!");
    }

    fn process_markdown_to_html(
        input: String,
    ) -> std::result::Result<HTMLOutput, HighlighterError> {
        process_markdown_to_html(input)
    }

// wit/femark.wit
package example:host;

world femark {

  record html-output{
        toc: option<string>,
        content: string,
    }

  /// The set of errors which may be raised by the function
  variant highlightererror {
        model-not-supported,
        runtime-error(string),
        invalid-input(string)
  }

  export process-markdown-to-html: func(input: string) -> result<html-output, highlightererror>;
}

error[E0428]: the name `HtmlOutput` is defined multiple times
   --> src/lib.rs:323:1
    |
15  | wit_bindgen::generate!({
    | ----------------------- previous definition of the type `HtmlOutput` here
...
323 | pub struct HtmlOutput {
    | ^^^^^^^^^^^^^^^^^^^^^ `HtmlOutput` redefined here
    |
    = note: `HtmlOutput` must be defined only once in the type namespace of this module

error[E0428]: the name `HighlighterError` is defined multiple times
   --> src/lib.rs:504:1
    |
15  | wit_bindgen::generate!({
    | ----------------------- previous definition of the type `HighlighterError` here
...
504 | enum HighlighterError {
    | ^^^^^^^^^^^^^^^^^^^^^ `HighlighterError` redefined here
    |
    = note: `HighlighterError` must be defined only once in the type namespace of this module

error[E0119]: conflicting implementations of trait `Debug` for type `HighlighterError`
   --> src/lib.rs:503:10
    |
15  | / wit_bindgen::generate!({
16  | |     // the name of the world in the `*.wit` input file
17  | |     world: "femark",
18  | |
...   |
25  | |     },
26  | | });
    | |__- first implementation here
...
503 |   #[derive(Debug, thiserror::Error)]
    |            ^^^^^ conflicting implementation for `HighlighterError`
    |
    = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0119]: conflicting implementations of trait `std::fmt::Display` for type `HighlighterError`
   --> src/lib.rs:503:17
    |
15  | / wit_bindgen::generate!({
16  | |     // the name of the world in the `*.wit` input file
17  | |     world: "femark",
18  | |
...   |
25  | |     },
26  | | });
    | |__- first implementation here
...
503 |   #[derive(Debug, thiserror::Error)]
    |                   ^^^^^^^^^^^^^^^^ conflicting implementation for `HighlighterError`
    |
    = note: this error originates in the derive macro `thiserror::Error` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0119]: conflicting implementations of trait `StdError` for type `HighlighterError`
   --> src/lib.rs:503:17
    |
15  | / wit_bindgen::generate!({
16  | |     // the name of the world in the `*.wit` input file
17  | |     world: "femark",
18  | |
...   |
25  | |     },
26  | | });
    | |__- first implementation here
...
503 |   #[derive(Debug, thiserror::Error)]
    |                   ^^^^^^^^^^^^^^^^ conflicting implementation for `HighlighterError`
    |
    = note: this error originates in the derive macro `thiserror::Error` (in Nightly builds, run with -Z macro-backtrace for more info)

Some errors have detailed explanations: E0119, E0428.
For more information about an error, try `rustc --explain E0119`.
error: could not compile `femark` (lib) due to 5 previous errors