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vhdlpp: VTypeArray emits dimensions in a bit smarter way.

This commit is contained in:
Maciej Suminski 2015-01-19 17:33:15 +01:00
parent e6b22a2bea
commit b05a19dffc
2 changed files with 28 additions and 18 deletions
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3
vhdlpp/vtype.h
View File

@ -215,11 +215,12 @@ class VTypeArray : public VType {
int emit_def(std::ostream&out, perm_string name) const;
int emit_typedef(std::ostream&out, typedef_context_t&ctx) const;
int emit_dimensions(std::ostream&out) const;
bool can_be_packed() const { return etype_->can_be_packed(); }
private:
int emit_with_dims_(std::ostream&out, bool packed, perm_string name) const;
void write_range_to_stream_(std::ostream&fd) const;
const VType*etype_;

37
vhdlpp/vtype_emit.cc
View File

@ -59,9 +59,7 @@ int VTypeERROR::emit_def(ostream&out, perm_string) const
int VTypeArray::emit_def(ostream&out, perm_string name) const
{
int errors = 0;
const VType*raw_base = basic_type();
const VTypePrimitive*base = dynamic_cast<const VTypePrimitive*> (raw_base);
if (base) {
@ -74,13 +72,7 @@ int VTypeArray::emit_def(ostream&out, perm_string name) const
raw_base->emit_def(out, empty_perm_string);
}
if(raw_base->can_be_packed()) {
errors += emit_dimensions(out);
emit_name(out, name);
} else {
emit_name(out, name);
errors += emit_dimensions(out);
}
errors += emit_with_dims_(out, raw_base->can_be_packed(), name);
return errors;
}
@ -90,7 +82,7 @@ int VTypeArray::emit_typedef(std::ostream&out, typedef_context_t&ctx) const
return etype_->emit_typedef(out, ctx);
}
int VTypeArray::emit_dimensions(std::ostream&out) const
int VTypeArray::emit_with_dims_(std::ostream&out, bool packed, perm_string name) const
{
int errors = 0;
@ -102,19 +94,36 @@ int VTypeArray::emit_dimensions(std::ostream&out) const
}
dims.push_back(cur);
bool name_emitted = false;
while (! dims.empty()) {
cur = dims.front();
dims.pop_front();
if(!packed) {
emit_name(out, name);
name_emitted = true;
}
for(unsigned i = 0; i < cur->dimensions(); ++i) {
if(cur->dimension(i).is_box() && !name_emitted) {
emit_name(out, name);
name_emitted = true;
}
out << "[";
if (cur->dimension(0).msb() && cur->dimension(0).lsb()) {
// bounded array, unbounded arrays have msb() & lsb() nullified
errors += cur->dimension(0).msb()->emit(out, 0, 0);
if (!cur->dimension(i).is_box()) { // if not unbounded {
errors += cur->dimension(i).msb()->emit(out, 0, 0);
out << ":";
errors += cur->dimension(0).lsb()->emit(out, 0, 0);
errors += cur->dimension(i).lsb()->emit(out, 0, 0);
}
out << "]";
}
}
if(!name_emitted) {
emit_name(out, name);
}
return errors;
}