The reason for this error looks like an ambiguity in template resolution. In
order to implement a "special" behavior for regex-based summaries, the
Delete_Impl call uses template specialization:
template<typename K, typename V>
bool
Delete_Impl (ConstString type, Types<K,V>)
vs.
template<typename V>
bool
Delete_Impl (ConstString type, Types<lldb::RegularExpressionSP,V>)
Your compiler seems to be inferring correctly the template arguments, but has a
doubt on whether it should pick the specialized function, or the general one
replacing K = lldb::RegularExpressionSP
This is the first time I see a compiler being confused at this (LLDB is
routinely compiled with clang and I guess several people compile it on Linux
with GCC as well). This idiom is actually a quite common way to obtain
one-function-specialization-inside-class-template.
In order to try and solve this, could you try to clean your LLDB build folder
and try to build LLDB alone without the rest of LLVM, or using a different more
recent version of GCC?
- Enrico Granata
On Sep 22, 2011, at 4:07 PM, arrowdodger wrote:
> Hello. I'm compiling trunk LLVM + trunk lldb on i386 FreeBSD 8 system (GCC
> 4.2.1) and see this error:
>
> /usr/code/llvm/tools/lldb/source/Commands/../../include/lldb/Core/FormatNavigator.h:
> In member function 'bool lldb_private::FormatNavigator<KeyType,
> ValueType>::Delete(lldb_private::ConstString) [with KeyType =
> lldb_private::SharingPtr<lldb_private::RegularExpression>, ValueType =
> lldb_private::SummaryFormat]':
> CommandObjectType.cpp:1064: instantiated from here
> /usr/code/llvm/tools/lldb/source/Commands/../../include/lldb/Core/FormatNavigator.h:269:
> error: call of overloaded 'Delete_Impl(lldb_private::ConstString&,
> lldb_private::FormatNavigator<lldb_private::SharingPtr<lldb_private::RegularExpression>,
>
> lldb_private::SummaryFormat>::Types<lldb_private::SharingPtr<lldb_private::RegularExpression>,
> lldb_private::SummaryFormat>)' is ambiguous
> /usr/code/llvm/tools/lldb/source/Commands/../../include/lldb/Core/FormatNavigator.h:333:
> note: candidates are: bool lldb_private::FormatNavigator<KeyType,
> ValueType>::Delete_Impl(lldb_private::ConstString,
> lldb_private::FormatNavigator<KeyType, ValueType>::Types<K, V>) [with K =
> lldb_private::SharingPtr<lldb_private::RegularExpression>, V =
> lldb_private::SummaryFormat, KeyType =
> lldb_private::SharingPtr<lldb_private::RegularExpression>, ValueType =
> lldb_private::SummaryFormat]
> /usr/code/llvm/tools/lldb/source/Commands/../../include/lldb/Core/FormatNavigator.h:340:
> note: bool lldb_private::FormatNavigator<KeyType,
> ValueType>::Delete_Impl(lldb_private::ConstString,
> lldb_private::FormatNavigator<KeyType,
> ValueType>::Types<lldb_private::SharingPtr<lldb_private::RegularExpression>,
> V>) [with V = lldb_private::SummaryFormat, KeyType =
> lldb_private::SharingPtr<lldb_private::RegularExpression>, ValueType =
> lldb_private::SummaryFormat]
>
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