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BarrelState

rolldown_common

Struct BarrelState 

Source 
pub struct BarrelState {
    pub barrel_infos: FxHashMap<ModuleIdx, Option<LazyBarrelInfo>>,
    pub requested_exports: FxHashMap<ModuleIdx, ImportedExports>,
    pub resolved_barrel_modules: FxHashMap<ModuleIdx, Vec<(ImportRecordIdx, ModuleIdx)>>,
}
Expand description

State for lazy barrel optimization

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§barrel_infos: FxHashMap<ModuleIdx, Option<LazyBarrelInfo>>§requested_exports: FxHashMap<ModuleIdx, ImportedExports>§resolved_barrel_modules: FxHashMap<ModuleIdx, Vec<(ImportRecordIdx, ModuleIdx)>>

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impl BarrelState

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pub fn initialize_barrel_tracking( &self, module: &NormalModule, raw_import_records: &IndexVec<ImportRecordIdx, RawImportRecord>, barrel_info: &mut Option<BarrelInfo>, ) -> (FxHashMap<ImportRecordIdx, ImportedExports>, FxHashMap<ImportRecordIdx, ImportedExports>)

Initialize barrel tracking for a module during the module loading phase.

This method prepares the data structures needed for lazy barrel optimization by:

  1. Building a map of all import records to their required imported exports
  2. Determining which records need to be loaded initially vs deferred
§Returns

A tuple of two maps:

  • imported_exports_per_record: Remaining import records after initial_needed_records consumes (fully or partially) from the original map. Used for tracking records that may be loaded later on-demand.
  • initial_needed_records: Records that must be loaded immediately based on the currently requested exports from this module.

Trait Implementations§

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impl Debug for BarrelState

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for BarrelState

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fn default() -> BarrelState

Returns the “default value” for a type. Read more

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