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Truffle Libraries allow language implementations to use polymorphic dispatch for receiver types with support for implementation specific caching/profiling and customization of the dispatch. Libraries enable modularity and encapsulation for representation types in language implementations.

Before reading the javadoc make sure you have read the tutorial .

Start learning Truffle Libraries by reading the following articles:

  • Libraries specify the set of available messages i.e. the protocol.
  • Exports implement a library for a receiver type.
  • Automatic dispatching using @CachedLibrary allows to call library messages with concrete receiver and parameters from nodes using the specialization DSL.
  • Manual dispatching using the LibraryFactory allows to perform slow-path calls and custom inline cache implementations.

Advanced Features:

  • The ReflectionLibrary allows to reflectively export and call messages without binary dependency to a library. It also allows to implement library agnostic proxies.
  • The DynamicDispatchLibrary allows to implement receivers that dynamically dispatch to exported message implementations.
See Also:
Since:19.0
/** * Truffle Libraries allow language implementations to use polymorphic dispatch for receiver types * with support for implementation specific caching/profiling and customization of the dispatch. * Libraries enable modularity and encapsulation for representation types in language * implementations. * <p> * Before reading the javadoc make sure you have read the * <a href= "https://github.com/oracle/graal/blob/master/truffle/docs/TruffleLibraries.md">tutorial * </a>. * <p> * Start learning Truffle Libraries by reading the following articles: * <ul> * <li>{@link com.oracle.truffle.api.library.GenerateLibrary Libraries} specify the set of available * messages i.e. the protocol. * <li>{@link com.oracle.truffle.api.library.ExportLibrary Exports} implement a library for a * receiver type. * <li>Automatic dispatching using * {@linkplain com.oracle.truffle.api.library.CachedLibrary @CachedLibrary} allows to call library * messages with concrete receiver and parameters from nodes using the * {@link com.oracle.truffle.api.dsl.Specialization specialization} DSL. * <li>Manual dispatching using the {@linkplain com.oracle.truffle.api.library.LibraryFactory * LibraryFactory} allows to perform slow-path calls and custom inline cache implementations. * </ul> * <p> * Advanced Features: * <ul> * <li>The {@link com.oracle.truffle.api.library.ReflectionLibrary} allows to reflectively export * and call messages without binary dependency to a library. It also allows to implement library * agnostic proxies. * <li>The {@link com.oracle.truffle.api.library.DynamicDispatchLibrary} allows to implement * receivers that dynamically dispatch to exported message implementations. * </ul> * * @see com.oracle.truffle.api.library.GenerateLibrary To specify libraries * @see com.oracle.truffle.api.library.ExportLibrary To export libraries * @see com.oracle.truffle.api.library.CachedLibrary To dispatch libraries from nodes * @see com.oracle.truffle.api.library.LibraryFactory To manually dispatch messages * @since 19.0 */
package com.oracle.truffle.api.library;