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914b08fc19
This allows to not include source code into the binary (because it will already be included in the V8 snapshot). Nothing changes for the embedders - everything should still build the same. This commit brings the binary size from 87Mb to 82Mb on M1. Alternative to https://github.com/denoland/deno/pull/17820 and https://github.com/denoland/deno/pull/17653 --------- Co-authored-by: Leo Kettmeir <crowlkats@toaxl.com>
48 lines
1.6 KiB
Rust
48 lines
1.6 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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#[cfg(not(feature = "dont_create_runtime_snapshot"))]
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use deno_core::Snapshot;
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#[cfg(not(feature = "dont_create_runtime_snapshot"))]
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use log::debug;
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#[cfg(not(feature = "dont_create_runtime_snapshot"))]
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use once_cell::sync::Lazy;
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#[cfg(not(feature = "dont_create_runtime_snapshot"))]
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static COMPRESSED_RUNTIME_SNAPSHOT: &[u8] =
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include_bytes!(concat!(env!("OUT_DIR"), "/RUNTIME_SNAPSHOT.bin"));
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#[cfg(not(feature = "dont_create_runtime_snapshot"))]
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pub static RUNTIME_SNAPSHOT: Lazy<Box<[u8]>> = Lazy::new(
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#[allow(clippy::uninit_vec)]
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#[cold]
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#[inline(never)]
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|| {
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let size =
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u32::from_le_bytes(COMPRESSED_RUNTIME_SNAPSHOT[0..4].try_into().unwrap())
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as usize;
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let mut vec = Vec::with_capacity(size);
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// SAFETY: vec is allocated with exact snapshot size (+ alignment)
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// SAFETY: non zeroed bytes are overwritten with decompressed snapshot
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unsafe {
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vec.set_len(size);
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}
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lzzzz::lz4::decompress(&COMPRESSED_RUNTIME_SNAPSHOT[4..], &mut vec)
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.unwrap();
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vec.into_boxed_slice()
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},
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);
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#[cfg(not(feature = "dont_create_runtime_snapshot"))]
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pub fn deno_isolate_init() -> Snapshot {
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debug!("Deno isolate init with snapshots.");
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Snapshot::Static(&RUNTIME_SNAPSHOT)
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}
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#[cfg(not(feature = "include_js_files_for_snapshotting"))]
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pub static SOURCE_CODE_FOR_99_MAIN_JS: &str = include_str!("js/99_main.js");
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#[cfg(feature = "include_js_files_for_snapshotting")]
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pub static PATH_FOR_99_MAIN_JS: &str =
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concat!(env!("CARGO_MANIFEST_DIR"), "/js/99_main.js");
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