#3786: showing function argumetns when stopped at its definition
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Reporter: phercek | Owner:
Type: feature request | Status: new
Priority: normal | Component: GHCi
Version: 6.12.1 | Keywords: debugger
Os: Unknown/Multiple | Testcase:
Architecture: Unknown/Multiple | Failure: None/Unknown
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It would be cool if GHCi debugger could grab not only the free variables
in the selected expression but, in one case, a bit more. The case is when
we stop at a function definition the first time (when just entering it).
In this case, the debugger should provide the bindings for the function
arguments. If a function uses pattern matching or when there are multiple
equations with different formal argument names then there may not be any
suitable name for the for the actual argument value. Because of this, we
introduce the function argument names like: _arg1, _arg2, ... _argN.
Numbering starts from 1 for the first formal argument of a function.[[BR]]
The special _argN names should be provided always, even when there is a
unique name for the argument in the source code.
This request was discussed here:
http://permalink.gmane.org/gmane.comp.lang.haskell.glasgow.user/17204
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3786>
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The Glasgow Haskell Compiler
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