Resolves: tdf#116468 do not check array/matrix context for reportdesign

It doesn't have any, and worse, there's no currently active OpCode
symbol map that could be used to create strings from tokens.

Regression from

    commit bf1ffc64128f5b96d7c2fcc7adc81cbc25e232fd
    Date:   Sun Jul 16 15:18:09 2017 +0200

        FormulaDlg_Impl::UpdateValues: evaluate in force-array context if present

Change-Id: I77c2035fdd0926f67fcc85e7090f30485b4e312c

1 files changed, 19 insertions, 10 deletions

diff --git a/formula/source/ui/dlg/formula.cxx b/formula/source/ui/dlg/formula.cxx
index 2e5d3569b68d..9bbc4afd4f0b 100644
--- a/formula/source/ui/dlg/formula.cxx
+++ b/formula/source/ui/dlg/formula.cxx
@@ -570,19 +570,28 @@ void FormulaDlg_Impl::UpdateValues( bool bForceRecalcStruct )
     // Only necessary if it's not a matrix formula anyway.
     if (!m_pBtnMatrix->IsChecked())
     {
-        const sal_Int32 nPos = m_aFuncSel.Min();
-        assert( 0 <= nPos && nPos < m_pHelper->getCurrentFormula().getLength());
-        OUStringBuffer aBuf;
+        /* TODO: we probably don't even need to ask a compiler instance if
+         * m_pBtnMatrix is hidden. */
         std::unique_ptr<FormulaCompiler> pCompiler( m_pHelper->createCompiler( *m_pTokenArray.get()));
-        const FormulaToken* pToken = nullptr;
-        for (pToken = m_pTokenArrayIterator->First(); pToken; pToken = m_pTokenArrayIterator->Next())
+        // In the case of the reportdesign dialog there is no currently active
+        // OpCode symbol mapping that could be used to create strings from
+        // tokens, it's all dreaded API mapping. However, in that case there's
+        // no array/matrix support anyway.
+        if (pCompiler->GetCurrentOpCodeMap().get())
         {
-            pCompiler->CreateStringFromToken( aBuf, pToken);
-            if (nPos < aBuf.getLength())
-                break;
+            const sal_Int32 nPos = m_aFuncSel.Min();
+            assert( 0 <= nPos && nPos < m_pHelper->getCurrentFormula().getLength());
+            OUStringBuffer aBuf;
+            const FormulaToken* pToken = nullptr;
+            for (pToken = m_pTokenArrayIterator->First(); pToken; pToken = m_pTokenArrayIterator->Next())
+            {
+                pCompiler->CreateStringFromToken( aBuf, pToken);
+                if (nPos < aBuf.getLength())
+                    break;
+            }
+            if (pToken && nPos < aBuf.getLength())
+                bForceArray = pToken->IsInForceArray();
         }
-        if (pToken && nPos < aBuf.getLength())
-            bForceArray = pToken->IsInForceArray();
     }
 
     OUString aStrResult;