Front end: Prevent use of a block name, which has no other use in a shader.
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@ -448,8 +448,16 @@ TIntermTyped* TParseContext::handleVariable(TSourceLoc loc, TSymbol* symbol, con
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// The symbol table search was done in the lexical phase.
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// See if it was a variable.
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variable = symbol ? symbol->getAsVariable() : 0;
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if (symbol && ! variable)
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error(loc, "variable name expected", string->c_str(), "");
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if (variable) {
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if ((variable->getType().getBasicType() == EbtBlock ||
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variable->getType().getBasicType() == EbtStruct) && variable->getType().getStruct() == nullptr) {
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error(loc, "cannot be used (maybe an instance name is needed)", string->c_str(), "");
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variable = nullptr;
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}
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} else {
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if (symbol)
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error(loc, "variable name expected", string->c_str(), "");
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}
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// Recovery, if it wasn't found or was not a variable.
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if (! variable)
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