diff options
Diffstat (limited to 'frontends')
| -rw-r--r-- | frontends/verilog/verilog_frontend.cc | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/frontends/verilog/verilog_frontend.cc b/frontends/verilog/verilog_frontend.cc index 5907707c8..84ac73e91 100644 --- a/frontends/verilog/verilog_frontend.cc +++ b/frontends/verilog/verilog_frontend.cc @@ -61,11 +61,6 @@ static void add_package_types(dict<std::string, AST::AstNode *> &user_types, std } } } - - // carry over typedefs from previous files, but allow them to be overridden - // note that these type maps are currently never reclaimed - if (user_type_stack.empty() || !user_type_stack.back()->empty()) - user_type_stack.push_back(new UserTypeMap()); } struct VerilogFrontend : public Frontend { @@ -487,6 +482,19 @@ struct VerilogFrontend : public Frontend { // make package typedefs available to parser add_package_types(pkg_user_types, design->verilog_packages); + UserTypeMap *global_types_map = new UserTypeMap(); + for (auto def : design->verilog_globals) { + if (def->type == AST::AST_TYPEDEF) { + (*global_types_map)[def->str] = def; + } + } + + log_assert(user_type_stack.empty()); + // use previous global typedefs as bottom level of user type stack + user_type_stack.push_back(global_types_map); + // add a new empty type map to allow overriding existing global definitions + user_type_stack.push_back(new UserTypeMap()); + frontend_verilog_yyset_lineno(1); frontend_verilog_yyrestart(NULL); frontend_verilog_yyparse(); @@ -509,6 +517,14 @@ struct VerilogFrontend : public Frontend { if (!flag_nopp) delete lexin; + // only the previous and new global type maps remain + log_assert(user_type_stack.size() == 2); + for (auto it : user_type_stack) { + // the global typedefs have to remain valid for future invocations, so just drop the map without deleting values + delete it; + } + user_type_stack.clear(); + delete current_ast; current_ast = NULL; |