30 lines
830 B
Rust
30 lines
830 B
Rust
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use std::convert::TryInto;
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use napi::{CallContext, Either, JsNumber, JsString, Result};
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#[js_function(1)]
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pub fn either_number_string(ctx: CallContext) -> Result<Either<JsNumber, JsString>> {
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let arg = ctx.get::<Either<JsNumber, JsString>>(0)?;
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match arg {
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Either::A(n) => {
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let n: u32 = n.try_into()?;
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ctx.env.create_uint32(n + 100).map(Either::A)
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}
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Either::B(s) => {
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let content = format!("Either::B({})", s.as_str()?);
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ctx.env.create_string_from_std(content).map(Either::B)
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}
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}
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}
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#[js_function(1)]
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pub fn dynamic_argument_length(ctx: CallContext) -> Result<JsNumber> {
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let value: Option<JsNumber> = ctx.try_get::<JsNumber>(0)?.into();
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if let Some(n) = value {
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let n: u32 = n.try_into()?;
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ctx.env.create_uint32(n + 100)
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} else {
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ctx.env.create_uint32(42)
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}
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}
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