mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 15:24:46 -05:00
f5840bdcd3
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
61 lines
1.8 KiB
Rust
61 lines
1.8 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use serde::Deserialize;
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#[derive(Debug, Deserialize)]
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struct MathOp {
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pub a: u64,
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pub b: u64,
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pub operator: Option<String>,
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}
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fn main() {
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let platform = v8::new_default_platform(0, false).make_shared();
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v8::V8::initialize_platform(platform);
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v8::V8::initialize();
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{
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let isolate = &mut v8::Isolate::new(v8::CreateParams::default());
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let handle_scope = &mut v8::HandleScope::new(isolate);
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let context = v8::Context::new(handle_scope);
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let scope = &mut v8::ContextScope::new(handle_scope, context);
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fn exec<'s>(
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scope: &mut v8::HandleScope<'s>,
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src: &str,
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) -> v8::Local<'s, v8::Value> {
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let code = v8::String::new(scope, src).unwrap();
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let script = v8::Script::compile(scope, code, None).unwrap();
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script.run(scope).unwrap()
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}
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let v = exec(scope, "32");
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let x32: u64 = serde_v8::from_v8(scope, v).unwrap();
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println!("x32 = {x32}");
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let v = exec(scope, "({a: 1, b: 3, c: 'ignored'})");
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let mop: MathOp = serde_v8::from_v8(scope, v).unwrap();
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println!(
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"mop = {{ a: {}, b: {}, operator: {:?} }}",
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mop.a, mop.b, mop.operator
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);
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let v = exec(scope, "[1,2,3,4,5]");
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let arr: Vec<u64> = serde_v8::from_v8(scope, v).unwrap();
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println!("arr = {arr:?}");
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let v = exec(scope, "['hello', 'world']");
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let hi: Vec<String> = serde_v8::from_v8(scope, v).unwrap();
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println!("hi = {hi:?}");
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let v: v8::Local<v8::Value> = v8::Number::new(scope, 12345.0).into();
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let x: f64 = serde_v8::from_v8(scope, v).unwrap();
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println!("x = {x}");
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}
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// SAFETY: all isolates have been destroyed, so we can now safely let V8 clean
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// up its resources.
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unsafe {
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v8::V8::dispose();
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}
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v8::V8::dispose_platform();
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}
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