mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 07:14:47 -05:00
4c6db7aa14
This commit further improves startup time by: - no relying on "JsRuntime::execute_script" for runtime bootstrapping, this is instead done using V8 APIs directly - registering error classes during the snapshot time, instead of on startup Further improvements can be made, mainly around removing "core.initializeAsyncOps()" which takes around 2ms. This commit should result in ~1ms startup time improvement.
85 lines
2.3 KiB
Rust
85 lines
2.3 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use deno_core::serde_json;
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use deno_core::serde_json::json;
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use deno_core::ModuleSpecifier;
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use std::thread;
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use crate::colors;
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use crate::ops::runtime::ppid;
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/// Common bootstrap options for MainWorker & WebWorker
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#[derive(Clone)]
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pub struct BootstrapOptions {
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/// Sets `Deno.args` in JS runtime.
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pub args: Vec<String>,
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pub cpu_count: usize,
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pub debug_flag: bool,
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pub enable_testing_features: bool,
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pub locale: String,
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pub location: Option<ModuleSpecifier>,
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/// Sets `Deno.noColor` in JS runtime.
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pub no_color: bool,
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pub is_tty: bool,
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/// Sets `Deno.version.deno` in JS runtime.
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pub runtime_version: String,
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/// Sets `Deno.version.typescript` in JS runtime.
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pub ts_version: String,
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pub unstable: bool,
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pub user_agent: String,
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pub inspect: bool,
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}
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impl Default for BootstrapOptions {
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fn default() -> Self {
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let cpu_count = thread::available_parallelism()
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.map(|p| p.get())
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.unwrap_or(1);
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let runtime_version = env!("CARGO_PKG_VERSION").into();
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let user_agent = format!("Deno/{runtime_version}");
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Self {
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runtime_version,
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user_agent,
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cpu_count,
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no_color: !colors::use_color(),
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is_tty: colors::is_tty(),
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enable_testing_features: Default::default(),
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debug_flag: Default::default(),
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ts_version: Default::default(),
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locale: "en".to_string(),
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location: Default::default(),
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unstable: Default::default(),
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inspect: Default::default(),
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args: Default::default(),
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}
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}
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}
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impl BootstrapOptions {
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pub fn as_json(&self) -> serde_json::Value {
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json!({
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// Shared bootstrap args
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"args": self.args,
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"cpuCount": self.cpu_count,
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"debugFlag": self.debug_flag,
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"denoVersion": self.runtime_version,
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"locale": self.locale,
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"location": self.location,
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"noColor": self.no_color,
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"isTty": self.is_tty,
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"tsVersion": self.ts_version,
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"unstableFlag": self.unstable,
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// Web worker only
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"enableTestingFeaturesFlag": self.enable_testing_features,
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// Env values
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"pid": std::process::id(),
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"ppid": ppid(),
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"target": env!("TARGET"),
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"v8Version": deno_core::v8_version(),
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"userAgent": self.user_agent,
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"inspectFlag": self.inspect,
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})
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}
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}
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