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vhdlpp: Evaluation for 'left and 'right attributes.

This commit is contained in:
Maciej Suminski 2014-10-10 18:35:17 +02:00
parent 1a4edcac48
commit a992f3ce7c
1 changed files with 25 additions and 1 deletions
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26
vhdlpp/expression_evaluate.cc
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@ -110,8 +110,32 @@ bool ExpAttribute::evaluate(ScopeBase*, int64_t&val) const
return false;
}
bool ExpAttribute::evaluate(Entity*, Architecture*arc, int64_t&val) const
bool ExpAttribute::evaluate(Entity*ent, Architecture*arc, int64_t&val) const
{
if (name_ == "left" || name_ == "right") {
const VType*base_type = base_->peek_type();
if (base_type == 0)
base_type = base_->probe_type(ent,arc);
ivl_assert(*this, base_type);
const VTypeArray*arr = dynamic_cast<const VTypeArray*>(base_type);
if (arr == 0) {
cerr << get_fileline() << ": error: "
<< "Cannot apply the 'left attribute to non-array objects"
<< endl;
return false;
}
ivl_assert(*this, arr->dimensions() == 1);
if(name_ == "left")
arr->dimension(0).msb()->evaluate(ent, arc, val);
else
arr->dimension(0).lsb()->evaluate(ent, arc, val);
return true;
}
return evaluate(arc, val);
}