belka/elna
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Replace ! with a function call writei

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This commit is contained in:
Eugen Wissner
2024-03-19 09:35:50 +01:00
parent e7d8f9116a
commit c210c55a17
25 changed files with 315 additions and 159 deletions
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30
source/parser.cpp
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@ -12,9 +12,9 @@ namespace elna::source
definition->body().accept(this);
}
void empty_visitor::visit(bang_statement *statement)
void empty_visitor::visit(call_statement *statement)
{
statement->body().accept(this);
statement->arguments().accept(this);
}
void empty_visitor::visit(question_mark_statement *statement)
@ -259,17 +259,22 @@ namespace elna::source
return m_operator;
}
bang_statement::bang_statement(std::unique_ptr<expression>&& body)
: m_body(std::move(body))
call_statement::call_statement(const std::string& name, std::unique_ptr<expression>&& body)
: m_name(name), m_body(std::move(body))
{
}
void bang_statement::accept(parser_visitor *visitor)
void call_statement::accept(parser_visitor *visitor)
{
visitor->visit(this);
}
expression& bang_statement::body()
std::string& call_statement::name() noexcept
{
return m_name;
}
expression& call_statement::arguments()
{
return *m_body;
}
@ -510,9 +515,9 @@ namespace elna::source
{
return parse_assign_statement();
}
else if (iterator.current(token::type::bang))
else if (iterator.current(token::type::identifier) && iterator.look_ahead(token::type::left_paren))
{
return parse_bang_statement();
return parse_call_statement();
}
else if (iterator.current(token::type::question_mark))
{
@ -534,17 +539,18 @@ namespace elna::source
return nullptr;
}
std::unique_ptr<bang_statement> parser::parse_bang_statement()
std::unique_ptr<call_statement> parser::parse_call_statement()
{
if (!iterator.advance(token::type::bang))
auto function_name = iterator.advance(token::type::identifier);
if (function_name.has_value() && !iterator.skip(token::type::left_paren))
{
return nullptr;
}
auto bang_body = parse_expression();
if (bang_body != nullptr)
if (bang_body != nullptr && iterator.skip(token::type::right_paren))
{
return std::make_unique<bang_statement>(std::move(bang_body));
return std::make_unique<call_statement>(function_name->get().identifier(), std::move(bang_body));
}
return nullptr;
}