using with wasm-pack shared reference problem

[ulvido]

Hi! I am new to Rust. I want to show wasm generated pdf with live changes in browser.

How can I solve this shared reference problem? Is there a trait implementaion missing? How can I clone or take ownership of the doc? thank you.

Purpose:

to convert pdf to bytes array and sent to js side.

Code

use printpdf::*;
use serde::{Deserialize, Serialize};
use wasm_bindgen::prelude::*;

#[wasm_bindgen]
pub fn create() -> JsValue {
    let (doc, page1, layer1) =
        PdfDocument::new("PDF_Document_title", Mm(247.0), Mm(210.0), "Layer 1");

    let bytes: Vec<u8> = doc.save_to_bytes().unwrap();

    serde_wasm_bindgen::to_value(&bytes).unwrap()
}

Build Command

wasm-pack build --target bundler

Error

[INFO]: Checking for the Wasm target...
[INFO]: Compiling to Wasm...
   Compiling printpdf v0.5.3
error[E0507]: cannot move out of `m.modification_date` which is behind a shared reference
  --> /home/ulvi/.cargo/registry/src/github.com-1ecc6299db9ec823/printpdf-0.5.3/src/document_info.rs:77:56
   |
77 |         let info_mod_date = to_pdf_time_stamp_metadata(m.modification_date);
   |                                                        ^^^^^^^^^^^^^^^^^^^ move occurs because `m.modification_date` has type `js_sys_date::OffsetDateTime`, which does not implement the `Copy` trait

error[E0507]: cannot move out of `m.creation_date` which is behind a shared reference
  --> /home/ulvi/.cargo/registry/src/github.com-1ecc6299db9ec823/printpdf-0.5.3/src/document_info.rs:78:59
   |
78 |         let info_create_date = to_pdf_time_stamp_metadata(m.creation_date);
   |                                                           ^^^^^^^^^^^^^^^ move occurs because `m.creation_date` has type `js_sys_date::OffsetDateTime`, which does not implement the `Copy` trait

error[E0507]: cannot move out of `m.creation_date` which is behind a shared reference
  --> /home/ulvi/.cargo/registry/src/github.com-1ecc6299db9ec823/printpdf-0.5.3/src/xmp_metadata.rs:49:43
   |
49 |         let create_date = to_pdf_xmp_date(m.creation_date);
   |                                           ^^^^^^^^^^^^^^^ move occurs because `m.creation_date` has type `js_sys_date::OffsetDateTime`, which does not implement the `Copy` trait

error[E0507]: cannot move out of `m.modification_date` which is behind a shared reference
  --> /home/ulvi/.cargo/registry/src/github.com-1ecc6299db9ec823/printpdf-0.5.3/src/xmp_metadata.rs:50:49
   |
50 |         let modification_date = to_pdf_xmp_date(m.modification_date);
   |                                                 ^^^^^^^^^^^^^^^^^^^ move occurs because `m.modification_date` has type `js_sys_date::OffsetDateTime`, which does not implement the `Copy` trait

error[E0507]: cannot move out of `m.metadata_date` which is behind a shared reference
  --> /home/ulvi/.cargo/registry/src/github.com-1ecc6299db9ec823/printpdf-0.5.3/src/xmp_metadata.rs:51:45
   |
51 |         let metadata_date = to_pdf_xmp_date(m.metadata_date);
   |                                             ^^^^^^^^^^^^^^^ move occurs because `m.metadata_date` has type `js_sys_date::OffsetDateTime`, which does not implement the `Copy` trait

For more information about this error, try `rustc --explain E0507`.
error: could not compile `printpdf` due to 5 previous errors
Error: Compiling your crate to WebAssembly failed
Caused by: failed to execute `cargo build`: exited with exit status: 101
  full command: "cargo" "build" "--lib" "--release" "--target" "wasm32-unknown-unknown"

[fschutt]

@ulvido you can't, it would need modifications to the user code in this example