belka/elna
1
0
Fork 0
Code Issues 2 Pull Requests Releases Activity

Unify the build_type function

Browse Source
This commit is contained in:
Eugen Wissner 2025-03-06 22:59:41 +01:00
parent dbeaca7cbf
commit 28bb573bf9
Signed by: belka
GPG Key ID: A27FDC1E8EE902C0
5 changed files with 102 additions and 99 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
boot/semantic.cc
View File

@ -69,5 +69,66 @@ namespace boot
{
return this;
}
void declaration_visitor::visit(program *program)
{
for (type_definition *const type : program->types)
{
this->unresolved.insert({ type->identifier, new alias_type() });
}
for (type_definition *const type : program->types)
{
type->accept(this);
}
}
void declaration_visitor::visit(type_definition *definition)
{
auto unresolved_declaration = this->unresolved.at(definition->identifier);
definition->body().accept(this);
if (this->current_type != nullptr)
{
unresolved_declaration->reference = this->current_type;
}
this->current_type = nullptr;
}
void declaration_visitor::visit(primitive_type_expression *type)
{
auto unresolved_alias = this->unresolved.find(type->name);
if (unresolved_alias != this->unresolved.end())
{
this->current_type = unresolved_alias->second;
}
else
{
this->current_type = new primitive_type(type->name);
}
}
void declaration_visitor::visit(array_type_expression *type)
{
}
void declaration_visitor::visit(pointer_type_expression *type)
{
}
void declaration_visitor::visit(record_type_expression *type)
{
this->current_type = new record_type();
}
void declaration_visitor::visit(union_type_expression *type)
{
this->current_type = new union_type();
}
void declaration_visitor::visit(procedure_type_expression *type)
{
}
}
}

89
gcc/elna-generic.cc
View File

@ -38,19 +38,7 @@ namespace elna
{
namespace gcc
{
declaration_visitor::declaration_visitor(std::shared_ptr<symbol_table> symbol_table)
: symbols(symbol_table)
{
this->symbols->enter("Int", elna_int_type_node);
this->symbols->enter("Word", elna_word_type_node);
this->symbols->enter("Char", elna_char_type_node);
this->symbols->enter("Bool", elna_bool_type_node);
this->symbols->enter("Byte", elna_byte_type_node);
this->symbols->enter("Float", elna_float_type_node);
this->symbols->enter("String", elna_string_type_node);
}
tree declaration_visitor::get_inner_alias(const boot::alias_type& t)
static tree get_inner_alias(std::shared_ptr<symbol_table> symbol_table, const boot::alias_type& t)
{
if (t.reference == nullptr)
{
@ -58,11 +46,11 @@ namespace gcc
}
else if (auto reference = t.reference->is_primitive())
{
return this->symbols->lookup(reference->identifier);
return symbol_table->lookup(reference->identifier);
}
else if (auto reference = t.reference->is_alias())
{
return get_inner_alias(*reference);
return get_inner_alias(symbol_table, *reference);
}
else if (auto reference = t.reference->is_record())
{
@ -75,75 +63,16 @@ namespace gcc
return NULL_TREE;
}
boot::type *declaration_visitor::build_type(boot::type_expression *type_expression)
void do_semantic_analysis(std::shared_ptr<symbol_table> symbols, std::unique_ptr<boot::program>& ast)
{
if (auto alias_node = type_expression->is_primitive())
{
return this->unresolved.at(alias_node->name);
}
else if (auto alias_node = type_expression->is_record())
{
return build_record(alias_node.get());
}
else if (auto alias_node = type_expression->is_union())
{
return build_union(alias_node.get());
}
return nullptr;
}
boot::declaration_visitor declaration_visitor;
boot::record_type *declaration_visitor::build_record(boot::record_type_expression *type_expression)
declaration_visitor.visit(ast.get());
for (auto unresolved : declaration_visitor.unresolved)
{
return new boot::record_type();
auto inner_alias = elna::gcc::get_inner_alias(symbols, *unresolved.second);
symbols->enter(unresolved.first, inner_alias);
}
boot::union_type *declaration_visitor::build_union(boot::union_type_expression *type_expression)
{
return new boot::union_type();
}
void declaration_visitor::visit(boot::program *program)
{
for (boot::type_definition *const type : program->types)
{
type->accept(this);
}
for (boot::type_definition *const type : program->types)
{
auto unresolved_declaration = this->unresolved.at(type->identifier);
if (auto alias_node = type->body().is_primitive())
{
auto unresolved_alias = this->unresolved.find(alias_node->name);
if (unresolved_alias != this->unresolved.end())
{
unresolved_declaration->reference = unresolved_alias->second;
}
else
{
unresolved_declaration->reference = new boot::primitive_type(alias_node->name);
}
}
else if (auto alias_node = type->body().is_record())
{
unresolved_declaration->reference = build_record(alias_node.get());
}
else if (auto alias_node = type->body().is_union())
{
unresolved_declaration->reference = build_union(alias_node.get());
}
}
for (auto unresolved : this->unresolved)
{
auto inner_alias = get_inner_alias(*unresolved.second);
this->symbols->enter(unresolved.first, inner_alias);
}
}
void declaration_visitor::visit(boot::type_definition *definition)
{
this->unresolved.insert({ definition->identifier, new boot::alias_type() });
}
generic_visitor::generic_visitor(std::shared_ptr<symbol_table> symbol_table)

11
gcc/elna1.cc
View File

@ -90,10 +90,17 @@ static void elna_parse_file(const char *filename)
{
std::shared_ptr<elna::gcc::symbol_table> symbol_table = std::make_shared<elna::gcc::symbol_table>();
elna::gcc::declaration_visitor declaration_visitor{ symbol_table };
symbol_table->enter("Int", elna_int_type_node);
symbol_table->enter("Word", elna_word_type_node);
symbol_table->enter("Char", elna_char_type_node);
symbol_table->enter("Bool", elna_bool_type_node);
symbol_table->enter("Byte", elna_byte_type_node);
symbol_table->enter("Float", elna_float_type_node);
symbol_table->enter("String", elna_string_type_node);
elna::gcc::do_semantic_analysis(symbol_table, driver.tree);
elna::gcc::generic_visitor generic_visitor{ symbol_table };
declaration_visitor.visit(driver.tree.get());
generic_visitor.visit(driver.tree.get());
}
linemap_add(line_table, LC_LEAVE, 0, NULL, 0);

22
include/elna/boot/semantic.h
View File

@ -17,6 +17,9 @@ along with GCC; see the file COPYING3. If not see
#include <string>
#include <vector>
#include <unordered_map>
#include "elna/boot/ast.h"
namespace elna
{
@ -71,5 +74,24 @@ namespace boot
union_type *is_union() override;
};
class declaration_visitor final : public empty_visitor
{
type *current_type{ nullptr };
public:
std::unordered_map<std::string, alias_type *> unresolved;
declaration_visitor() = default;
void visit(primitive_type_expression *type) override;
void visit(array_type_expression *type) override;
void visit(pointer_type_expression *type) override;
void visit(program *program) override;
void visit(type_definition *definition) override;
void visit(record_type_expression *type) override;
void visit(union_type_expression *type) override;
void visit(procedure_type_expression *type) override;
};
}
}

18
include/elna/gcc/elna-generic.h
View File

@ -28,29 +28,13 @@ along with GCC; see the file COPYING3. If not see
#include "tree.h"
#include "tree-iterator.h"
#include <unordered_map>
#include <string>
namespace elna
{
namespace gcc
{
class declaration_visitor final : public boot::empty_visitor
{
std::shared_ptr<symbol_table> symbols;
std::unordered_map<std::string, boot::alias_type *> unresolved;
boot::type *build_type(boot::type_expression *type_expression);
boot::record_type *build_record(boot::record_type_expression *type_expression);
boot::union_type *build_union(boot::union_type_expression *type_expression);
tree get_inner_alias(const boot::alias_type& t);
public:
declaration_visitor(std::shared_ptr<symbol_table> symbol_table);
void visit(boot::program *program) override;
void visit(boot::type_definition *definition) override;
};
void do_semantic_analysis(std::shared_ptr<symbol_table> symbols, std::unique_ptr<boot::program>& ast);
class generic_visitor final : public boot::empty_visitor
{