KPGPMC/furlang
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feat(furc): introduce native and import functions

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Closes: #19
This commit is contained in:
Aleksander Krajewski
2026-06-24 18:26:01 +02:00
parent abeb5b390b
commit d8d81851d3
5 changed files with 56 additions and 11 deletions
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furc/src/front/parser.cpp
+19 -7
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@@ -38,14 +38,11 @@ ast::program_node_r parser::parse() & {
while (peek_token().has_value()) {
auto decl = parse_declaration();
if (decl.has_error()) {
program = nullptr;
} else if (program != nullptr) {
program->push(std::move(decl.value()));
}
if (decl.has_error()) return ast::program_node_r(ast::error{ decl.error().location });
program->push(std::move(decl.value()));
}
return program != nullptr ? std::move(program) : ast::program_node_r(ast::error{ location{ m_filename } });
return program;
}
ast::type_r parser::parse_type() {
@@ -59,8 +56,20 @@ ast::declaration_node_r parser::parse_declaration() {
const auto& first = peek_token();
switch (first->type) {
case token_t::Keyword: {
ast::function_declaration_node_t funcDeclType{};
auto first = next_token();
switch ((*first)->keyword) {
case keyword_token::Import:
case keyword_token::Native: {
funcDeclType = ((*first)->keyword == keyword_token::Import) ? ast::function_declaration_node_t::Import
: ast::function_declaration_node_t::Native;
first = eat_token(token_t::Keyword);
if (first.has_error()) return ast::declaration_node_r(ast::error{ first.error().location });
if (first->value.keyword != keyword_token::Func)
return ast::declaration_node_r(ast::error{ first->location });
}
case keyword_token::Func: {
auto name = eat_token(token_t::Identifier);
if (name.has_error()) return ast::declaration_node_r(ast::error{ name.error().location });
@@ -103,6 +112,8 @@ ast::declaration_node_r parser::parse_declaration() {
case token_t::LBrace: {
ast::body_r body = parse_body();
if (body.has_error()) return ast::declaration_node_r(ast::error{ body.error().location });
if (funcDeclType != ast::function_declaration_node_t::Normal)
return ast::declaration_node_r(ast::error{ body->begin });
return m_arena->allocate_shared<ast::function_definition_node>(first->location,
name->value.string,
std::move(returnType),
@@ -114,7 +125,8 @@ ast::declaration_node_r parser::parse_declaration() {
return m_arena->allocate_shared<ast::function_declaration_node>(first->location,
name->value.string,
std::move(returnType),
std::move(params));
std::move(params),
funcDeclType);
}
default: return ast::declaration_node_r(ast::error{ tok->location });
}