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https://github.com/denoland/deno.git
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e511022c74
Code run within Deno-mode and Node-mode should have access to a slightly different set of globals. Previously this was done through a compile time code-transform for Node-mode, but this is not ideal and has many edge cases, for example Node's globalThis having a different identity than Deno's globalThis. This commit makes the `globalThis` of the entire runtime a semi-proxy. This proxy returns a different set of globals depending on the caller's mode. This is not a full proxy, because it is shadowed by "real" properties on globalThis. This is done to avoid the overhead of a full proxy for all globalThis operations. The globals between Deno-mode and Node-mode are now properly segregated. This means that code running in Deno-mode will not have access to Node's globals, and vice versa. Deleting a managed global in Deno-mode will NOT delete the corresponding global in Node-mode, and vice versa. --------- Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com> Co-authored-by: Aapo Alasuutari <aapo.alasuutari@gmail.com>
35 lines
795 B
Rust
35 lines
795 B
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use deno_core::Snapshot;
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use log::debug;
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static CLI_SNAPSHOT: &[u8] =
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include_bytes!(concat!(env!("OUT_DIR"), "/CLI_SNAPSHOT.bin"));
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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(CLI_SNAPSHOT)
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn runtime_snapshot() {
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let mut js_runtime = deno_core::JsRuntime::new(deno_core::RuntimeOptions {
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startup_snapshot: Some(deno_isolate_init()),
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..Default::default()
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});
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js_runtime
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.execute_script_static(
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"<anon>",
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r#"
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if (!(bootstrap.mainRuntime && bootstrap.workerRuntime)) {
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throw Error("bad");
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}
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"#,
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)
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.unwrap();
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}
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}
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