Introduce monad transformer FT #74
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garyb
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type: breaking change
garyb
reviewed
Nov 11, 2018
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This looks like something we should try to do with the 0.14 compiler release, is there any objection? |
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Any updates on this PR? |
thomashoneyman
approved these changes
Jan 27, 2021
JordanMartinez
approved these changes
Feb 3, 2021
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This allows running
FTatop any monad, not justIdentity.History and usecase: purescript-corefn uses purescript-foreign to parse the corefn produced by PureScript. With non-trivial programs the corefn quickly grows large enough to blow the stack while parsing. By recovering the ability to change out the underlying monad, we can instead run on top of
Trampolineand evaluate usingrunTrampoline, thereby recovering stack safety.