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verilog: Squash a memory leak.

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That was added in ecc22f7fed
This commit is contained in:
Marcelina Kościelnicka 2021-06-14 16:28:10 +02:00
parent 438bcc68c0
commit 801ecc0e1d
4 changed files with 14 additions and 19 deletions
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17
frontends/verilog/verilog_parser.y
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@ -54,7 +54,7 @@ namespace VERILOG_FRONTEND {
dict<IdString, AstNode*> *attr_list, default_attr_list;
std::stack<dict<IdString, AstNode*> *> attr_list_stack;
dict<IdString, AstNode*> *albuf;
std::vector<UserTypeMap*> user_type_stack;
std::vector<UserTypeMap> user_type_stack;
dict<std::string, AstNode*> pkg_user_types;
std::vector<AstNode*> ast_stack;
struct AstNode *astbuf1, *astbuf2, *astbuf3;
@ -132,8 +132,8 @@ static void addTypedefNode(std::string *name, AstNode *node)
log_assert(node);
auto *tnode = new AstNode(AST_TYPEDEF, node);
tnode->str = *name;
auto user_types = user_type_stack.back();
(*user_types)[*name] = tnode;
auto &user_types = user_type_stack.back();
user_types[*name] = tnode;
if (current_ast_mod && current_ast_mod->type == AST_PACKAGE) {
// typedef inside a package so we need the qualified name
auto qname = current_ast_mod->str + "::" + (*name).substr(1);
@ -145,8 +145,7 @@ static void addTypedefNode(std::string *name, AstNode *node)
static void enterTypeScope()
{
auto user_types = new UserTypeMap();
user_type_stack.push_back(user_types);
user_type_stack.push_back(UserTypeMap());
}
static void exitTypeScope()
@ -157,17 +156,17 @@ static void exitTypeScope()
static bool isInLocalScope(const std::string *name)
{
// tests if a name was declared in the current block scope
auto user_types = user_type_stack.back();
return (user_types->count(*name) > 0);
auto &user_types = user_type_stack.back();
return (user_types.count(*name) > 0);
}
static AstNode *getTypeDefinitionNode(std::string type_name)
{
// check current scope then outer scopes for a name
for (auto it = user_type_stack.rbegin(); it != user_type_stack.rend(); ++it) {
if ((*it)->count(type_name) > 0) {
if (it->count(type_name) > 0) {
// return the definition nodes from the typedef statement
auto typedef_node = (**it)[type_name];
auto typedef_node = (*it)[type_name];
log_assert(typedef_node->type == AST_TYPEDEF);
return typedef_node->children[0];
}