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verilog: support module scope identifiers in parametric modules

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This commit is contained in:
Zachary Snow 2021-03-04 14:07:56 -05:00 • committed by Zachary Snow
parent 3d9698153f
commit 4f187d53c5
2 changed files with 37 additions and 4 deletions
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12
frontends/ast/simplify.cc
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@ -1691,11 +1691,15 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
if (type == AST_IDENTIFIER) {
if (current_scope.count(str) == 0) {
AstNode *current_scope_ast = (current_ast_mod == nullptr) ? current_ast : current_ast_mod;
const std::string& mod_scope = current_scope_ast->str;
if (str[0] == '\\' && str.substr(0, mod_scope.size()) == mod_scope) {
std::string new_str = "\\" + str.substr(mod_scope.size() + 1);
size_t pos = str.find('.', 1);
if (str[0] == '\\' && pos != std::string::npos) {
std::string new_str = "\\" + str.substr(pos + 1);
if (current_scope.count(new_str)) {
str = new_str;
std::string prefix = str.substr(0, pos);
auto it = current_scope_ast->attributes.find(ID::hdlname);
if ((it != current_scope_ast->attributes.end() && it->second->str == prefix)
|| prefix == current_scope_ast->str)
str = new_str;
}
}
for (auto node : current_scope_ast->children) {