[cfe-dev] blocks and lambdas
bayoubengal at mac.com
Tue Feb 8 10:44:21 PST 2011
thanks for the info. I find it interesting.
On Feb 7, 2011, at 8:00 PM, John McCall wrote:
> On Feb 7, 2011, at 6:33 PM, James Gregurich wrote:
>> What if you build your lambda structure around the existing block structure such that the lambda type would have a copy constructor that calls Block_copy? If the lambda has a type, it stands to reason that it could have a copy constructor.
> You seem to be describing a transformation which would occur when a block pointer is treated like a lambda.
no. not really a "transformation"...more of a syntactic wrapper. you control your compiler and runtime. When clang hits a lambda in C++ code, I assume the backend could generate a block structure to implement the lambda. Also, if the lambda has a c++ type, then it could also have a copy constructor to invoke Block_copy so that the mechanism works normally with stl. Is such an assumption off-base?
> That's not actually a knowable point in a program.
I don't understand what you mean by this statement.
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