39 lines
1.3 KiB
Rust
39 lines
1.3 KiB
Rust
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/* run code, get result as a Rust String */
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fn eval_code(scope: &mut v8::HandleScope, code: &str) -> std::string::String {
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let source = v8::String::new(scope, &code).unwrap();
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let script = v8::Script::compile(scope, source, None).unwrap();
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let result = script.run(scope).unwrap();
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return result.to_string(scope).unwrap().to_rust_string_lossy(scope);
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}
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fn main() {
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create_snapshot();
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}
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fn create_snapshot() {
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/* initialize */
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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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let startup_data = {
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let mut isolate = v8::Isolate::snapshot_creator(None);
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{
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let handle_scope = &mut v8::HandleScope::new(&mut isolate);
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let context = v8::Context::new(handle_scope);
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let context_scope = &mut v8::ContextScope::new(handle_scope, context);
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/* load library */
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{
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let script = std::fs::read_to_string("./xlsx.full.min.js").expect("Error reading xlsx.full.min.js");
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let _result = eval_code(context_scope, &script);
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}
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context_scope.set_default_context(context);
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}
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isolate.create_blob(v8::FunctionCodeHandling::Clear).unwrap()
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};
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let blob: Vec<u8> = startup_data.to_vec();
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std::fs::write("snapshot.bin", blob).unwrap();
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}
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