30 lines
1,008 B
Rust
30 lines
1,008 B
Rust
use std::str;
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use napi::{CallContext, Error, JsBuffer, JsNumber, JsString, Module, Result, Status};
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#[js_function(1)]
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pub fn get_buffer_length(ctx: CallContext) -> Result<JsNumber> {
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let buffer = ctx.get::<JsBuffer>(0)?.into_value()?;
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ctx.env.create_uint32((&buffer).len() as u32)
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}
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#[js_function(1)]
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pub fn buffer_to_string(ctx: CallContext) -> Result<JsString> {
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let buffer = ctx.get::<JsBuffer>(0)?.into_value()?;
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ctx.env.create_string(
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str::from_utf8(&buffer).map_err(|e| Error::new(Status::StringExpected, format!("{}", e)))?,
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)
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}
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#[js_function(1)]
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pub fn copy_buffer(ctx: CallContext) -> Result<JsBuffer> {
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let buffer = ctx.get::<JsBuffer>(0)?.into_value()?;
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ctx.env.create_buffer_copy(buffer).map(|b| b.into_raw())
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}
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pub fn register_js(module: &mut Module) -> Result<()> {
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module.create_named_method("getBufferLength", get_buffer_length)?;
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module.create_named_method("bufferToString", buffer_to_string)?;
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module.create_named_method("copyBuffer", copy_buffer)?;
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Ok(())
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}
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