mirror of
https://github.com/Myriad-Dreamin/tinymist.git
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6180e343e0
* feat: move world implementation * dev: remove vector ir * fix: errors * fix: clippy * fix: don't build world in web * fix: unused patches * fix: fmt * fix: docs example * fix: doc examples
101 lines
3.5 KiB
Rust
101 lines
3.5 KiB
Rust
use std::path::Path;
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use tinymist_std::ImmutPath;
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use typst::diag::{FileError, FileResult};
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use wasm_bindgen::prelude::*;
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use crate::{AccessModel, Bytes, Time};
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/// Provides proxy access model from typst compiler to some JavaScript
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/// implementation.
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#[derive(Debug, Clone)]
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pub struct ProxyAccessModel {
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/// The `this` value when calling the JavaScript functions
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pub context: JsValue,
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/// The JavaScript function to get the mtime of a file
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pub mtime_fn: js_sys::Function,
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/// The JavaScript function to check if a path corresponds to a file or a
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/// directory
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pub is_file_fn: js_sys::Function,
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/// The JavaScript function to get the real path of a file
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pub real_path_fn: js_sys::Function,
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/// The JavaScript function to get the content of a file
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pub read_all_fn: js_sys::Function,
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}
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impl AccessModel for ProxyAccessModel {
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fn mtime(&self, src: &Path) -> FileResult<Time> {
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self.mtime_fn
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.call1(&self.context, &src.to_string_lossy().as_ref().into())
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.map(|v| {
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let v = v.as_f64().unwrap();
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Time::UNIX_EPOCH + std::time::Duration::from_secs_f64(v)
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})
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.map_err(|e| {
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web_sys::console::error_3(
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&"typst_ts::compiler::ProxyAccessModel::mtime failure".into(),
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&src.to_string_lossy().as_ref().into(),
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&e,
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);
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FileError::AccessDenied
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})
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}
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fn is_file(&self, src: &Path) -> FileResult<bool> {
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self.is_file_fn
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.call1(&self.context, &src.to_string_lossy().as_ref().into())
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.map(|v| v.as_bool().unwrap())
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.map_err(|e| {
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web_sys::console::error_3(
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&"typst_ts::compiler::ProxyAccessModel::is_file failure".into(),
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&src.to_string_lossy().as_ref().into(),
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&e,
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);
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FileError::AccessDenied
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})
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}
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fn real_path(&self, src: &Path) -> FileResult<ImmutPath> {
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self.real_path_fn
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.call1(&self.context, &src.to_string_lossy().as_ref().into())
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.map(|v| Path::new(&v.as_string().unwrap()).into())
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.map_err(|e| {
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web_sys::console::error_3(
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&"typst_ts::compiler::ProxyAccessModel::real_path failure".into(),
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&src.to_string_lossy().as_ref().into(),
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&e,
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);
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FileError::AccessDenied
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})
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}
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fn content(&self, src: &Path) -> FileResult<Bytes> {
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let data = self
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.read_all_fn
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.call1(&self.context, &src.to_string_lossy().as_ref().into())
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.map_err(|e| {
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web_sys::console::error_3(
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&"typst_ts::compiler::ProxyAccessModel::read_all failure".into(),
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&src.to_string_lossy().as_ref().into(),
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&e,
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);
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FileError::AccessDenied
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})?;
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let data = if let Some(data) = data.dyn_ref::<js_sys::Uint8Array>() {
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Bytes::from(data.to_vec())
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} else {
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return Err(FileError::AccessDenied);
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};
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Ok(data)
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}
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}
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// todo
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/// Safety: `ProxyAccessModel` is only used in the browser environment, and we
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/// cannot share data between workers.
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unsafe impl Send for ProxyAccessModel {}
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/// Safety: `ProxyAccessModel` is only used in the browser environment, and we
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/// cannot share data between workers.
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unsafe impl Sync for ProxyAccessModel {}
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