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Shell: Add support for functions

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This implementation does not have support for 'return' yet.
This commit is contained in:
AnotherTest 2020-09-13 15:54:33 +04:30 • committed by Andreas Kling
parent 519aa2048a
commit d1550ea64f
6 changed files with 264 additions and 5 deletions
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60
Shell/AST.cpp
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@ -764,6 +764,66 @@ Fd2FdRedirection::~Fd2FdRedirection()
{
}
void FunctionDeclaration::dump(int level) const
{
Node::dump(level);
print_indented(String::format("(name: %s)\n", m_name.name.characters()), level + 1);
print_indented("(argument namess)", level + 1);
for (auto& arg : m_arguments)
print_indented(String::format("(name: %s)\n", arg.name.characters()), level + 2);
print_indented("(body)", level + 1);
if (m_block)
m_block->dump(level + 2);
else
print_indented("(null)", level + 2);
}
RefPtr<Value> FunctionDeclaration::run(RefPtr<Shell> shell)
{
Vector<String> args;
for (auto& arg : m_arguments)
args.append(arg.name);
shell->define_function(m_name.name, move(args), m_block);
return create<ListValue>({});
}
void FunctionDeclaration::highlight_in_editor(Line::Editor& editor, Shell& shell, HighlightMetadata metadata)
{
editor.stylize({ m_name.position.start_offset, m_name.position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Blue) });
for (auto& arg : m_arguments)
editor.stylize({ arg.position.start_offset, arg.position.end_offset }, { Line::Style::Foreground(Line::Style::XtermColor::Blue), Line::Style::Italic });
metadata.is_first_in_list = true;
if (m_block)
m_block->highlight_in_editor(editor, shell, metadata);
}
HitTestResult FunctionDeclaration::hit_test_position(size_t offset)
{
if (!position().contains(offset))
return {};
return m_block->hit_test_position(offset);
}
FunctionDeclaration::FunctionDeclaration(Position position, NameWithPosition name, Vector<NameWithPosition> arguments, RefPtr<AST::Node> body)
: Node(move(position))
, m_name(move(name))
, m_arguments(arguments)
, m_block(move(body))
{
if (m_block && m_block->is_syntax_error())
set_is_syntax_error(m_block->syntax_error_node());
}
FunctionDeclaration::~FunctionDeclaration()
{
}
void ForLoop::dump(int level) const
{
Node::dump(level);