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use num_bigint::BigInt;
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use super::buffer::JsBuffer;
use super::transl8::FromV8;
use super::transl8::ToV8;
use crate::magic::transl8::impl_magic;
use crate::Error;
use crate::ToJsBuffer;
/// An untagged enum type that can be any of number, string, bool, bigint, or
/// buffer.
#[derive(Debug)]
pub enum AnyValue {
RustBuffer(ToJsBuffer),
V8Buffer(JsBuffer),
String(String),
Number(f64),
BigInt(BigInt),
Bool(bool),
}
impl_magic!(AnyValue);
impl ToV8 for AnyValue {
fn to_v8<'a>(
&mut self,
scope: &mut v8::HandleScope<'a>,
) -> Result<v8::Local<'a, v8::Value>, crate::Error> {
match self {
Self::RustBuffer(buf) => crate::to_v8(scope, buf),
Self::V8Buffer(_) => unreachable!(),
Self::String(s) => crate::to_v8(scope, s),
Self::Number(num) => crate::to_v8(scope, num),
Self::BigInt(bigint) => {
crate::to_v8(scope, crate::BigInt::from(bigint.clone()))
}
Self::Bool(b) => crate::to_v8(scope, b),
}
}
}
impl FromV8 for AnyValue {
fn from_v8(
scope: &mut v8::HandleScope,
value: v8::Local<v8::Value>,
) -> Result<Self, crate::Error> {
if value.is_string() {
let string = crate::from_v8(scope, value)?;
Ok(AnyValue::String(string))
} else if value.is_number() {
let string = crate::from_v8(scope, value)?;
Ok(AnyValue::Number(string))
} else if value.is_big_int() {
let bigint = crate::BigInt::from_v8(scope, value)?;
Ok(AnyValue::BigInt(bigint.into()))
} else if value.is_array_buffer_view() {
let buf = JsBuffer::from_v8(scope, value)?;
Ok(AnyValue::V8Buffer(buf))
} else if value.is_boolean() {
let string = crate::from_v8(scope, value)?;
Ok(AnyValue::Bool(string))
} else {
Err(Error::Message(
"expected string, number, bigint, ArrayBufferView, boolean".into(),
))
}
}
}
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