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Code Issues 14 Pull Requests Releases Activity

Document symbol bag class and methods

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This commit is contained in:
Eugen Wissner
2025-08-23 00:48:58 +02:00
parent 809e41bcc3
commit fd3729ba16
13 changed files with 294 additions and 117 deletions
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44
boot/symbol.cc
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@@ -314,7 +314,7 @@ namespace elna::boot
procedure_info::procedure_info(const procedure_type symbol, const std::vector<std::string> names,
std::shared_ptr<symbol_table> scope)
: symbol(symbol), names(names), symbols(scope)
: symbol(symbol), names(names), scope(scope)
{
}
@@ -323,6 +323,11 @@ namespace elna::boot
return std::static_pointer_cast<procedure_info>(shared_from_this());
}
bool procedure_info::is_extern() const
{
return this->scope == nullptr;
}
constant_info::constant_info(const variant& symbol)
: symbol(symbol)
{
@@ -333,8 +338,8 @@ namespace elna::boot
return std::static_pointer_cast<constant_info>(shared_from_this());
}
variable_info::variable_info(const type symbol)
: symbol(symbol)
variable_info::variable_info(const type symbol, bool is_extern)
: symbol(symbol), is_extern(is_extern)
{
}
@@ -358,14 +363,10 @@ namespace elna::boot
return result;
}
symbol_bag::symbol_bag()
{
this->symbols = std::make_shared<symbol_table>();
}
symbol_bag::symbol_bag(forward_table&& unresolved, std::shared_ptr<symbol_table> symbols)
: symbols(symbols), unresolved(unresolved)
symbol_bag::symbol_bag(forward_table&& unresolved, std::shared_ptr<symbol_table> global_table)
: unresolved(unresolved)
{
this->symbols = std::make_shared<symbol_table>(global_table);
}
std::shared_ptr<info> symbol_bag::lookup(const std::string& name)
@@ -396,18 +397,31 @@ namespace elna::boot
this->symbols = child;
}
void symbol_bag::leave()
std::shared_ptr<symbol_table> symbol_bag::leave()
{
this->symbols = this->symbols->scope();
std::shared_ptr<symbol_table> result = this->symbols;
this->symbols = result->scope();
return result;
}
void symbol_bag::add_import(std::shared_ptr<symbol_table> table)
std::shared_ptr<alias_type> symbol_bag::declared(const std::string& symbol_name)
{
this->imports.push_front(table);
auto unresolved_alias = this->unresolved.find(symbol_name);
return unresolved_alias == this->unresolved.end() ? std::shared_ptr<alias_type>() : unresolved_alias->second;
}
std::shared_ptr<alias_type> symbol_bag::resolve(const std::string& symbol_name, type& resolution)
{
auto unresolved_declaration = this->unresolved.at(symbol_name);
unresolved_declaration->reference = resolution;
return unresolved_declaration;
}
void symbol_bag::add_import(const symbol_bag& bag)
{
add_import(bag.symbols);
this->imports.push_front(bag.symbols);
}
}