About "Var" - that is just a Name with additional info, but happens in the
typechecked tree (according to API docs).
2017-10-05 18:00 GMT+02:00 Simon Peyton Jones :
> well the HsWrapper might have something much more complicated than a
> DFunId. It might need to construct the dictionary for Eq [
Hi Simon,
no, I did not until now. Thank you! As such it is acceptable that the CmmCalls
set of live registers is a superset of the CmmProcs live registers that is
called.
Say we shrink the set of live registers of the CmmProc, as we determine that
some of the
arguments passed in registers are
tl;dr. Do you use Control.Monad.STM.always? If so say so on
this [1] proposal otherwise the interface may be removed.
Hello everyone,
GHC's STM subsystem has long had the ability to run user-specified
invariant checks when committing transactions, embodied by the
Control.Monad.STM.always
well the HsWrapper might have something much more complicated than a DFunId.
It might need to construct the dictionary for Eq [a] from the DFun for Eq [a]
and a dictionary for Eq a.
it would be easy to resolve the Var of the instance method.
I don't know what "the var of the instance method" is
Hello Simon - I outlined the approach in
https://github.com/google/haskell-indexer/issues/73.
TLDR is
1) at callsite, indeed the HsWrapper needs to be analysed to get the
instance DFunId
2) at instance declaration site, we need to again take note of the DFunId.
It is slightly more complicated than
Did you ever get a reply to this?
In the output of the codegen, CmmProcs should have no live registers apart from
those used to pass args, and the standard ones.
Simon
| -Original Message-
| From: ghc-devs [mailto:ghc-devs-boun...@haskell.org] On Behalf Of Moritz
| Angermann
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I’m not 100% certain of your question, but consider the
bar = show
for some expression e. In the input to the type type checker the syntax tree
for the RHS will be something like
HsApp (HsVar “show”)
(The “show” isn’t really a string, it’s the Name for t
