Evan AlmloffandJonathan Kelley
c977cc125e
* implement const cbor encoding + decoding for basic types * implement map encoding and decoding * fix map test * all tests passing * dynamically sized arrays * smaller str encoding * swap array and list and add more documentation * move serialization and deserialization for each struct together * support both legacy and new assets * bump const serialize version * fix asset conversion code * pull out manganis symbol struct from tuble * test reading old asset versions * more list/array cleanup and bump rust version * fix clippy * switch cli opt port * install playwright deps * split cli-optimization package to avoid two dioxus' in the same crate * fix clippy * force the toast.png asset to be included in the linker stage #[used] has platform depedant behavior * bundle both formats in the link section and only use the asset the cli changed * remove sudo which doesn't exist on windows * add binstall to the playwright workflow * separate bin target for the old cli * lockfile * cargo update to get versions shaken out * notes on binstalls, add back `.read()` for compat * use 0.8.0-alpha.0 for const-serialize instead of 0.8 this ensures we can still publish breaking changes on 0.8 without taking over the full version * fix clippy in example * small debug nits * update rust-overlay in nix * fix flake? * migrate to new structure * just comment out binstalls * just remove old test harness --------- Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>
45 lines
2.3 KiB
Rust
45 lines
2.3 KiB
Rust
use proc_macro2::TokenStream as TokenStream2;
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use quote::ToTokens;
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/// We store description of the assets an application uses in the executable.
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/// We use the `link_section` attribute embed an extra section in the executable.
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/// We force rust to store a serialized representation of the asset description
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/// inside a particular region of the binary, with the label "manganis".
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/// After linking, the "manganis" sections of the different object files will be merged.
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pub fn generate_link_section(asset: impl ToTokens, asset_hash: &str) -> TokenStream2 {
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let position = proc_macro2::Span::call_site();
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let export_name = syn::LitStr::new(&format!("__ASSETS__{}", asset_hash), position);
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let legacy_export_name = syn::LitStr::new(&format!("__MANGANIS__{}", asset_hash), position);
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quote::quote! {
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// We bundle both the legacy and new link sections for compatibility with older CLIs
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static __LEGACY_LINK_SECTION: &'static [u8] = {
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// First serialize the asset into a constant sized buffer
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const __BUFFER: manganis::macro_helpers::const_serialize_07::ConstVec<u8> = manganis::macro_helpers::serialize_asset_07(&#asset);
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// Then pull out the byte slice
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const __BYTES: &[u8] = __BUFFER.as_ref();
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// And the length of the byte slice
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const __LEN: usize = __BYTES.len();
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// Now that we have the size of the asset, copy the bytes into a static array
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#[unsafe(export_name = #legacy_export_name)]
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static __LINK_SECTION: [u8; __LEN] = manganis::macro_helpers::copy_bytes(__BYTES);
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&__LINK_SECTION
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};
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static __LINK_SECTION: &'static [u8] = {
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// First serialize the asset into a constant sized buffer
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const __BUFFER: manganis::macro_helpers::const_serialize::ConstVec<u8> = manganis::macro_helpers::serialize_asset(&#asset);
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// Then pull out the byte slice
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const __BYTES: &[u8] = __BUFFER.as_ref();
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// And the length of the byte slice
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const __LEN: usize = __BYTES.len();
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// Now that we have the size of the asset, copy the bytes into a static array
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#[unsafe(export_name = #export_name)]
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static __LINK_SECTION: [u8; __LEN] = manganis::macro_helpers::copy_bytes(__BYTES);
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&__LINK_SECTION
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};
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}
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}
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