luke
/
iverilog
mirror of https://github.com/steveicarus/iverilog.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

vhdlpp: Moved part of check_unb_vector() to fix_logic_darray().

This commit is contained in:
Maciej Suminski 2015-01-23 13:30:31 +01:00
parent 56e410f386
commit 2ecfed0baa
2 changed files with 15 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
vhdlpp/subprogram.cc
View File

@ -97,20 +97,19 @@ void Subprogram::fix_port_types()
}
}
VTypeArray*Subprogram::fix_logic_darray(const VTypeArray*type)
{
Expression*zero = new ExpInteger(0);
std::vector<VTypeArray::range_t> sub_range;
sub_range.push_back(VTypeArray::range_t(zero, zero));
return new VTypeArray(type, sub_range);
}
bool Subprogram::check_unb_vector(const VType*&type)
{
if(const VTypeArray*arr = dynamic_cast<const VTypeArray*>(type)) {
if(arr->dimensions() == 1 && arr->dimension(0).is_box() ) {
// For the time being, dynamic arrays work exclusively with vectors.
// To emulate simple 'logic'/'bit' type, we need to create a vector
// of width == 1, to be used as the array element type.
// Effectively 'logic name []' becomes 'logic [0:0] name []'.
Expression*zero = new ExpInteger(0);
std::vector<VTypeArray::range_t> sub_range;
sub_range.push_back(VTypeArray::range_t(zero, zero));
VTypeArray*new_arr = new VTypeArray(arr, sub_range);
type = get_global_typedef(new_arr);
type = get_global_typedef(fix_logic_darray(arr));
return true;
}
}

6
vhdlpp/subprogram.h
View File

@ -76,6 +76,12 @@ class Subprogram : public LineInfo, public ScopeBase {
// to translation between VHDL and SystemVerilog.
void fix_port_types();
// For the time being, dynamic arrays work exclusively with vectors.
// To emulate dynamic array of 'logic'/'bit' type, we need to create a vector
// of width == 1, to be used as the array element type.
// Effectively 'logic name []' becomes 'logic [0:0] name []'.
VTypeArray*fix_logic_darray(const VTypeArray*type);
// Creates a typedef for an unbounded vector and updates the given type.
bool check_unb_vector(const VType*&type);