dfe867a9cd
This is a quick fix to a long standing problem of `org.enso.interpreter.service.error.FailedToApplyEditsException` which would prevent backend from processing any more changes, rendering GUI (and backend) virtually useless. Edits are submitted for (background) processing in the order they are handled. However the order of execution of such tasks is not guaranteed. Most of the time edits are processed in the same order as their requests but when they don't, files get quickly out of sync. Related to #8770. # Important Notes I'm not a fan of this change because it essentially blocks all open/file requests until all edits are processed and we already have logic to deal with that appropriately. Moreover those tasks can and should be processed independently. Since we already had the single thread executor present to ensure correct synchronization of open/file/push commands, we are simply adding edit commands to the list. Ideally we want to have a specialized executor that executes tasks within the same group sequentially but groups of tasks can be executed in parallel, thus ensuring sufficient throughput. The latter will take much longer and will require significant rewrite of the command execution. Added tests that would previously fail due to non-deterministic execution. |
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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.