belka/elna
1
0
Fork 0
Code Issues 6 Pull Requests Releases Activity

Remove type visiting in generic visitor

Browse Source
This commit is contained in:
Eugen Wissner
2025-08-06 12:55:37 +02:00
parent b18effbdd8
commit 5d1804fbc2
10 changed files with 374 additions and 232 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
include/elna/boot/ast.h
View File

@@ -131,6 +131,53 @@ namespace elna::boot
virtual void visit(literal<std::string> *) = 0;
};
/**
* Abstract visitor that doesn't visit any nodes by default.
*/
class empty_visitor : public parser_visitor
{
[[noreturn]] void not_implemented();
public:
[[noreturn]] virtual void visit(named_type_expression *) override;
[[noreturn]] virtual void visit(array_type_expression *) override;
[[noreturn]] virtual void visit(pointer_type_expression *) override;
[[noreturn]] virtual void visit(program *) override;
[[noreturn]] virtual void visit(type_declaration *) override;
[[noreturn]] virtual void visit(record_type_expression *) override;
[[noreturn]] virtual void visit(union_type_expression *) override;
[[noreturn]] virtual void visit(procedure_type_expression *) override;
[[noreturn]] virtual void visit(enumeration_type_expression *) override;
[[noreturn]] virtual void visit(variable_declaration *) override;
[[noreturn]] virtual void visit(constant_declaration *) override;
[[noreturn]] virtual void visit(procedure_declaration *) override;
[[noreturn]] virtual void visit(assign_statement *) override;
[[noreturn]] virtual void visit(if_statement *) override;
[[noreturn]] virtual void visit(import_declaration *) override;
[[noreturn]] virtual void visit(while_statement *) override;
[[noreturn]] virtual void visit(return_statement *) override;
[[noreturn]] virtual void visit(defer_statement *) override;
[[noreturn]] virtual void visit(case_statement *) override;
[[noreturn]] virtual void visit(procedure_call *) override;
[[noreturn]] virtual void visit(unit *) override;
[[noreturn]] virtual void visit(cast_expression *) override;
[[noreturn]] virtual void visit(traits_expression *) override;
[[noreturn]] virtual void visit(binary_expression *) override;
[[noreturn]] virtual void visit(unary_expression *) override;
[[noreturn]] virtual void visit(variable_expression *) override;
[[noreturn]] virtual void visit(array_access_expression *) override;
[[noreturn]] virtual void visit(field_access_expression *) override;
[[noreturn]] virtual void visit(dereference_expression *) override;
[[noreturn]] virtual void visit(literal<std::int32_t> *) override;
[[noreturn]] virtual void visit(literal<std::uint32_t> *) override;
[[noreturn]] virtual void visit(literal<double> *) override;
[[noreturn]] virtual void visit(literal<bool> *) override;
[[noreturn]] virtual void visit(literal<unsigned char> *) override;
[[noreturn]] virtual void visit(literal<std::nullptr_t> *) override;
[[noreturn]] virtual void visit(literal<std::string> *) override;
};
/**
* AST node.
*/

5
include/elna/boot/dependency.h
View File

@@ -35,15 +35,16 @@ namespace elna::boot
explicit dependency(const char *path);
};
dependency read_sources(std::istream& entry_point, const char *entry_path);
dependency read_source(std::istream& entry_point, const char *entry_path);
std::filesystem::path build_path(const std::vector<std::string>& segments);
error_list analyze_semantics(const char *path, std::unique_ptr<unit>& tree, symbol_bag bag);
template<typename T>
struct dependency_state
{
const std::shared_ptr<symbol_table> globals;
T custom;
std::unordered_map<std::filesystem::path, elna::boot::symbol_bag> cache;
std::unordered_map<std::filesystem::path, symbol_bag> cache;
explicit dependency_state(T custom)
: globals(elna::boot::builtin_symbol_table()), custom(custom)

72
include/elna/boot/semantic.h
View File

@@ -69,6 +69,40 @@ namespace elna::boot
std::string what() const override;
};
class return_error : public error
{
const std::string identifier;
public:
return_error(const std::string& identifier, const char *path, const struct position position);
std::string what() const override;
};
/**
* Checks types.
*/
class type_analysis_visitor final : public empty_visitor, public error_container
{
bool returns;
public:
explicit type_analysis_visitor(const char *path);
void visit(program *program) override;
void visit(procedure_declaration *definition) override;
void visit(assign_statement *) override;
void visit(if_statement *) override;
void visit(import_declaration *) override;
void visit(while_statement *) override;
void visit(return_statement *) override;
void visit(defer_statement *) override;
void visit(case_statement *) override;
void visit(procedure_call *) override;
void visit(unit *unit) override;
};
/**
* Performs name analysis.
*/
@@ -128,51 +162,17 @@ namespace elna::boot
};
/**
* Collects global declarations.
* Collects global declarations without resolving any symbols.
*/
class declaration_visitor final : public parser_visitor, public error_container
class declaration_visitor final : public empty_visitor, public error_container
{
public:
std::unordered_map<std::string, std::shared_ptr<alias_type>> unresolved;
explicit declaration_visitor(const char *path);
void visit(named_type_expression *) override;
void visit(array_type_expression *) override;
void visit(pointer_type_expression *) override;
void visit(program *program) override;
void visit(type_declaration *) override;
void visit(record_type_expression *) override;
void visit(union_type_expression *) override;
void visit(procedure_type_expression *) override;
void visit(enumeration_type_expression *) override;
void visit(variable_declaration *) override;
void visit(constant_declaration *) override;
void visit(procedure_declaration *) override;
void visit(assign_statement *) override;
void visit(if_statement *) override;
void visit(import_declaration *) override;
void visit(while_statement *) override;
void visit(return_statement *) override;
void visit(defer_statement *) override;
void visit(case_statement *) override;
void visit(procedure_call *) override;
void visit(unit *unit) override;
void visit(cast_expression *) override;
void visit(traits_expression *) override;
void visit(binary_expression *) override;
void visit(unary_expression *) override;
void visit(variable_expression *) override;
void visit(array_access_expression *) override;
void visit(field_access_expression *) override;
void visit(dereference_expression *) override;
void visit(literal<std::int32_t> *) override;
void visit(literal<std::uint32_t> *) override;
void visit(literal<double> *) override;
void visit(literal<bool> *) override;
void visit(literal<unsigned char> *) override;
void visit(literal<std::nullptr_t> *) override;
void visit(literal<std::string> *) override;
};
}

9
include/elna/gcc/elna-generic.h
View File

@@ -33,7 +33,7 @@ along with GCC; see the file COPYING3. If not see
namespace elna::gcc
{
class generic_visitor final : public boot::parser_visitor
class generic_visitor final : public boot::empty_visitor
{
tree current_expression{ NULL_TREE };
elna::boot::symbol_bag bag;
@@ -91,13 +91,6 @@ namespace elna::gcc
void visit(boot::if_statement *statement) override;
void visit(boot::import_declaration *) override;
void visit(boot::while_statement *statement) override;
void visit(boot::named_type_expression *type) override;
void visit(boot::array_type_expression *) override;
void visit(boot::pointer_type_expression *type) override;
void visit(boot::record_type_expression *) override;
void visit(boot::union_type_expression *) override;
void visit(boot::procedure_type_expression *) override;
void visit(boot::enumeration_type_expression *) override;
void visit(boot::return_statement *statement) override;
void visit(boot::defer_statement *statement) override;
void visit(boot::case_statement *statement) override;