Design the handling of function pointers #125
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Summary
As we do not have the ability to arbitrarily set the program counter when compiling via
FlatLowered
, we have had to come up with a clever way to emulate calling functions via pointers in Hieratika.This PR includes that design, which makes certain assumptions that seem to hold for generic Rust code, but may do not hold for all LLVM IR. This makes it sufficient for an initial implementation, and for getting Rust code working, but may later see evolution to better support more complex notions of function pointers.
Details
Check it makes sense please! For @ktemkin please make sure I faithfully recorded it as we discussed it!
Checklist
scarb fmt
.