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denoland-deno/cli/startup_data.rs
Ryan Dahl f7fdb90fd5
core: snapshot improvements (#2052)
* Moves how snapshots are supplied to the Isolate. Previously they were
  given by Behavior::startup_data() but it was only called once at
  startup. It makes more sense (and simplifies Behavior) to pass it to the
  constructor of Isolate.
* Adds new libdeno type deno_snapshot instead of overloading
  deno_buf.
* Adds new libdeno method to delete snapshot deno_snapshot_delete().
* Renames deno_get_snapshot() to deno_snapshot_new().
* Makes StartupData hold references to snapshots. This was implicit when
  it previously held a deno_buf but is made explicit now. Note that
  include_bytes!() returns a &'static [u8] and we want to avoid
  copying that.
2019-04-08 10:12:43 -04:00

56 lines
1.8 KiB
Rust

// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use deno::{Script, StartupData};
pub fn deno_isolate_init() -> StartupData<'static> {
if cfg!(feature = "no-snapshot-init") {
debug!("Deno isolate init without snapshots.");
#[cfg(not(feature = "check-only"))]
let source_bytes =
include_bytes!(concat!(env!("GN_OUT_DIR"), "/gen/cli/bundle/main.js"));
#[cfg(feature = "check-only")]
let source_bytes = vec![];
StartupData::Script(Script {
filename: "gen/cli/bundle/main.js",
source: std::str::from_utf8(&source_bytes[..]).unwrap(),
})
} else {
debug!("Deno isolate init with snapshots.");
#[cfg(not(any(feature = "check-only", feature = "no-snapshot-init")))]
let data =
include_bytes!(concat!(env!("GN_OUT_DIR"), "/gen/cli/snapshot_deno.bin"));
#[cfg(any(feature = "check-only", feature = "no-snapshot-init"))]
let data = vec![];
StartupData::Snapshot(data)
}
}
pub fn compiler_isolate_init() -> StartupData<'static> {
if cfg!(feature = "no-snapshot-init") {
debug!("Compiler isolate init without snapshots.");
#[cfg(not(feature = "check-only"))]
let source_bytes = include_bytes!(concat!(
env!("GN_OUT_DIR"),
"/gen/cli/bundle/compiler.js"
));
#[cfg(feature = "check-only")]
let source_bytes = vec![];
StartupData::Script(Script {
filename: "gen/cli/bundle/compiler.js",
source: std::str::from_utf8(&source_bytes[..]).unwrap(),
})
} else {
debug!("Deno isolate init with snapshots.");
#[cfg(not(any(feature = "check-only", feature = "no-snapshot-init")))]
let data = include_bytes!(concat!(
env!("GN_OUT_DIR"),
"/gen/cli/snapshot_compiler.bin"
));
#[cfg(any(feature = "check-only", feature = "no-snapshot-init"))]
let data = vec![];
StartupData::Snapshot(data)
}
}