enso/engine/runtime
Hubert Plociniczak 6769ab0ee7
Downgrade hashing to SHA-1 and other optimizations (#5791)
This change downgrades hashing algorithm used in caching IR and library bindings to SHA-1. It is sufficient and significantly faster for the purpose of simple checksum we use it for.

Additionally, don't calculate the digest for serialized bytes - if we get the expected object type then we are confident about the integrity.

Don't initialize Jackson's ObjectMapper for every metadata serialization/de-serialization. Initialization is very costly.

Avoid unnecessary conversions between Scala and Java. Those back-and-forth `asScala` and `asJava` are pretty expensive.

Finally fix an SBT warning when generating library cache.

Closes https://github.com/enso-org/enso/issues/5763

# Important Notes
The change cuts roughly 0.8-1s from the overall startup.
This change will certainly lead to invalidation of existing caches. It is advised to simply start with a clean slate.
2023-03-09 07:36:59 +00:00
..
src Downgrade hashing to SHA-1 and other optimizations (#5791) 2023-03-09 07:36:59 +00:00
README.md Add a markdown style guide (#1022) 2020-07-21 13:59:40 +01:00

Enso Runtime

The Enso runtime is responsible for the actual execution of Enso code. This means that it encompasses the following functionality:

  • Parsing: Taking Enso code as input and generating an AST that maintains a sophisticated set of information about the input.
  • Desugaring: Reducing the user-facing Enso code into a simplified language known as Core.
  • Type Inference: Inferring the types of bindings in the user's code.
  • Type Checking: Checking that the inferred and provided types for bindings match up across the codebase.
  • Optimisation: Static optimisation processes to improve the performance of the user's program.
  • Code Execution: Actually running the Enso code.
  • Introspection Hooks: Providing hooks into the running code to allow the language server to inspect information about the code as it runs.

Truffle Nodes creation convention

All Truffle nodes that are expected to be created as part of ASTs should implement a public, static build method for creating an instance. If the node is DSL generated, the build method should delegate to the autogenerated create method, so that nodes are always created with build. Such a convention allows us to easily switch node back and forth between manual and DSL generated implementations, without the need to change its clients.

The only exception are nodes that are never expected to be a part of an AST e.g. root nodes of builtin functions, for which an asFunction method should be implemented instead.

This convention should be implemented for every node throughout this codebase if you see one not obeying it please fix it.