rspack_plugin_runtime 0.101.0-rc.0

rspack runtime plugin
Documentation 
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use std::sync::LazyLock;

use rspack_core::{
  Compilation, RuntimeGlobals, RuntimeModule, RuntimeModuleGenerateContext, RuntimeTemplate,
  RuntimeVariable, impl_runtime_module,
};

use crate::extract_runtime_globals_from_ejs;

static ASYNC_MODULE_TEMPLATE: &str = include_str!("runtime/async_module.ejs");
static ASYNC_MODULE_RUNTIME_REQUIREMENTS: LazyLock<RuntimeGlobals> =
  LazyLock::new(|| extract_runtime_globals_from_ejs(ASYNC_MODULE_TEMPLATE));

#[impl_runtime_module]
#[derive(Debug)]
pub struct AsyncRuntimeModule {}

impl AsyncRuntimeModule {
  pub fn new(runtime_template: &RuntimeTemplate) -> Self {
    Self::with_name(runtime_template, "async_module")
  }
}

#[async_trait::async_trait]
impl RuntimeModule for AsyncRuntimeModule {
  async fn generate(
    &self,
    context: &RuntimeModuleGenerateContext<'_>,
  ) -> rspack_error::Result<String> {
    let runtime_template = context.runtime_template;
    runtime_template.render(
      &self.id,
      Some(serde_json::json!({
        "_module_cache": runtime_template.render_runtime_variable(&RuntimeVariable::ModuleCache),
      })),
    )
  }

  fn template(&self) -> Vec<(String, String)> {
    vec![(self.id.to_string(), ASYNC_MODULE_TEMPLATE.to_string())]
  }

  fn additional_runtime_requirements(&self, _compilation: &Compilation) -> RuntimeGlobals {
    *ASYNC_MODULE_RUNTIME_REQUIREMENTS
  }

  fn additional_write_runtime_requirements(&self, _compilation: &Compilation) -> RuntimeGlobals {
    RuntimeGlobals::ASYNC_MODULE
      | RuntimeGlobals::ASYNC_MODULE_EXPORT_SYMBOL
      | RuntimeGlobals::DEFERRED_MODULES_ASYNC_TRANSITIVE_DEPENDENCIES
      | RuntimeGlobals::DEFERRED_MODULES_ASYNC_TRANSITIVE_DEPENDENCIES_SYMBOL
  }
}