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use anyhow::{Result, bail};
use turbo_tasks::{ResolvedVc, Vc};
use turbo_tasks_fs::FileSystemPath;
use turbopack_core::{
code_builder::{Code, CodeBuilder},
context::AssetContext,
file_source::FileSource,
reference_type::ReferenceType,
};
use crate::EcmascriptAnalyzable;
/// Static ECMAScript file code, to be used as part of some code.
///
/// Useful to transform partial runtime code files, which get concatenated into
/// the final runtime code, while keeping source map information.
#[turbo_tasks::value]
pub struct StaticEcmascriptCode {
asset_context: ResolvedVc<Box<dyn AssetContext>>,
asset: ResolvedVc<Box<dyn EcmascriptAnalyzable>>,
generate_source_map: bool,
}
#[turbo_tasks::value_impl]
impl StaticEcmascriptCode {
/// Creates a new [`Vc<StaticEcmascriptCode>`].
#[turbo_tasks::function]
pub async fn new(
asset_context: ResolvedVc<Box<dyn AssetContext>>,
asset_path: FileSystemPath,
generate_source_map: bool,
) -> Result<Vc<Self>> {
let module = asset_context
.process(
Vc::upcast(FileSource::new(asset_path.clone())),
ReferenceType::Runtime,
)
.module()
.to_resolved()
.await?;
let Some(asset) = ResolvedVc::try_sidecast::<Box<dyn EcmascriptAnalyzable>>(module) else {
bail!("asset is not an Ecmascript module")
};
Ok(Self::cell(StaticEcmascriptCode {
asset_context,
asset,
generate_source_map,
}))
}
/// Computes the contents of the asset and pushes it to
/// the code builder, including the source map if available.
#[turbo_tasks::function]
pub async fn code(&self) -> Result<Vc<Code>> {
let runtime_base_content = self
.asset
.module_content_without_analysis(self.generate_source_map)
.await?;
let mut code = CodeBuilder::default();
code.push_source(
&runtime_base_content.inner_code,
runtime_base_content.source_map.clone(),
);
Ok(Code::cell(code.build()))
}
}
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