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