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base repository: endbasic/endbasic
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  • 9 commits
  • 21 files changed
  • 1 contributor

Commits on Dec 21, 2024

  1. Pull Context out of exec_with_data 

    This is the first step in decoupling Context from exec to allow the
calling user to control the execution loop.
    @jmmv
    jmmv committed Dec 21, 2024
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  2. Move the Image into the Context 

    The execution Context is what should track the Image (program and memory
of the machine during execution), so move it there instead of keeping it
at the Machine level.
    @jmmv
    jmmv committed Dec 21, 2024
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  3. Separate compilation from execution 

    Instead of compiling code within exec(), make the caller do the
compilation first to prepare a Context, and then as the Machine
to execute it.

This removes a "wart" that has existed for a long time because
compilation should always have been kept separate.
    @jmmv
    jmmv committed Dec 21, 2024
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  4. Move last_error into the Context/Scope 

    The last_error is dependent on the program being run by the Context,
so move it there and bubble access through the Scope.
    @jmmv
    jmmv committed Dec 21, 2024
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  5. Pull upcall handling code into a separate function 

    To keep the execution loop simpler, move upcall handling into its
own function.  This function is private for now, but it will become
public once we are able to pull out the whole execution loop to the
caller.
    @jmmv
    jmmv committed Dec 21, 2024
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  6. Simplify Scope creation 

    Now that Scope requires multiple parts of the Context, pass in the
Context as a parameter.  This will allow us to interact with even
more parts of the Context.
    @jmmv
    jmmv committed Dec 21, 2024
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  7. Handle chained executions (RUN) via the main loop 

    Instead of having the RUN command execute the stored program in a
nested machine invocation, chain the execution contexts so that the
machine's main loop can handle the nesting on its own.

This should allow exposing the execution loop to callers as a
fundamental primitive.
    @jmmv
    jmmv committed Dec 21, 2024
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  8. Pull the main loop from the Machine to the REPL 

    Add a new Machine::resume() method that takes a Context and returns
control as soon as the machine hits an interruptible point.  This
allows the REPL to implement its own execution loop and is one step
more towards the removal of async from the core.
    @jmmv
    jmmv committed Dec 21, 2024
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  9. i don't know what this is

    @jmmv
    jmmv committed Dec 21, 2024
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