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When we dectect that the last expression is a record type and is not
a temporary, we now return it by reference, hence avoiding an unnecessary
and sometimes impossible (cout) copy. If it is a temporary we still
return a 'copy'.
type is trivially copiable and cling::StoredValueRef is not.
We could check for a copy ctor (which is defined in that type), however, that is
not important at the moment. We can readd that logic on use-case.
git-svn-id: http://root.cern.ch/svn/root/trunk@47825 27541ba8-7e3a-0410-8455-c3a389f83636
Accept that Value's type is not the last Expr's type (e.g. const char[5]) but whatever the wrapper returns, (e.g. const char*).
Print StoredValueRefs recursively.
Add mechanism to suppress newlines (improves readability for nested calls)
git-svn-id: http://root.cern.ch/svn/root/trunk@47169 27541ba8-7e3a-0410-8455-c3a389f83636
declarations - it just compiles and runs given expression or statement.
git-svn-id: http://root.cern.ch/svn/root/trunk@46636 27541ba8-7e3a-0410-8455-c3a389f83636
Check that redecl causes an error -- only the whole verify thing doesn't actually verify!
Also, the initializer should end up in the Value returned by evaluate; it's not!
git-svn-id: http://root.cern.ch/svn/root/trunk@46626 27541ba8-7e3a-0410-8455-c3a389f83636
seconds, but I don't like where EvaluateInternal is going.
At first place it shouldn't do any smart guessing what the transformers would do.
Second it shouldn't try to attach expression evaluation (storing the result in
cling::Value) while preparing for value printing.
To sum up:
* Simplify the old craft in EvaluateInternal
- Move the value printing logic into the value printer transformer.
- Move the expression evaluation login (mainly coming through the
Interpreter::evaluate interface) into separate transformer.
* Attach the new transformer to the list of transformers (the size of it was
increased as well.)
* Add new compilation option switch that the new transformer will react on.
* Turn on the switch where necessary.
* Simplify value printer logic. Now everything is at one place, which makes it
simpler and easier to debug.
* Make IncrementalParser::Parse to take compilation options' reference instead of
constructing it's own.
* As consequence of the new implementation - two bugs in the testsuite were
uncovered. Propose a fix for them.
* Improve documentation.
* TODO: There is some code duplication, which will be factored out soon.
git-svn-id: http://root.cern.ch/svn/root/trunk@46549 27541ba8-7e3a-0410-8455-c3a389f83636
Update Interpreter to use that instead of cling::Value.
This fixes an issue where the called neded to guess the return type of the wrapper function, such that for instance Interpreter::Evaluate() has storage for the wrapper's aggregate SRet return value if needed.
Instead, the Interpreter now allocates the proper storage for return values, and hands out references to it.
StoredValueRef is tiny (8bytes on 64bit Linux); default allocation is cheap.
Update TCintWithCling and friends; don't pass the returnValue in if the caller does not need it.
TClingCallFunc: provide storage for fArgs.
git-svn-id: http://root.cern.ch/svn/root/trunk@46334 27541ba8-7e3a-0410-8455-c3a389f83636
