#include "ast_gen.h"

using namespace ast_gen;

GlobalElement* GlobalElement::UniquePtr = nullptr;

GlobalElement::GlobalElement(const QString& name) :names_store(name) {
	UniquePtr = this;
}

void GlobalElement::clearCache() { node_cache.clear(); }

std::shared_ptr<const SyntaxElement> GlobalElement::appendToCache(std::shared_ptr<const SyntaxElement> named_node) {
	auto mixed_key = QString(u8"%1<%2>").arg(named_node->signature()).arg(named_node->typeMark());
	if (node_cache.contains(mixed_key))
		return node_cache[mixed_key];
	node_cache[mixed_key] = named_node;
	return nullptr;
}

std::shared_ptr<const SyntaxElement> GlobalElement::getNamedNodeBy(int paramType, const QString& signature) const {
	auto mixed_key = QString(u8"%1<%2>").arg(signature).arg(paramType);
	if (!node_cache.contains(mixed_key))
		return nullptr;
	return node_cache[mixed_key];
}

int GlobalElement::typeMark() const { return 0; }

bool ast_gen::GlobalElement::isAnonymous() const { return true; }

QString GlobalElement::signature() const { return u8"::global"; }

QString GlobalElement::path() const { return u8""; }

std::shared_ptr<const SyntaxElement> GlobalElement::parent() const { return nullptr; }

void ast_gen::GlobalElement::setParent(std::shared_ptr<const SyntaxElement> inst) {}

QList<std::shared_ptr<const TokenAccess>> GlobalElement::selfTokens() const { return QList<std::shared_ptr<const TokenAccess>>(); }

std::shared_ptr<const ast_basic::IExprInst> ast_gen::GlobalElement::bindExpression() const
{
	return bind_exprs;
}

void GlobalElement::addChild(std::shared_ptr<ast_gen::SyntaxElement> citem) {
	auto convx = std::dynamic_pointer_cast<ast_basic::IExprInst>(citem);
	bind_exprs->addChild(convx);
}

ElementAccess::ElementAccess(std::shared_ptr<const SyntaxElement> point) { peers = point; }

std::shared_ptr<const SyntaxElement> ElementAccess::element() const { return peers; }

QList<std::shared_ptr<const ElementAccess>> ElementAccess::children() const {
	auto expression_inst = element()->bindExpression();
	auto children = expression_inst->children();

	QList<std::shared_ptr<const ElementAccess>> retvalues;
	for (auto item : children) {
		auto elem_inst = std::dynamic_pointer_cast<const SyntaxElement>(item);
		retvalues.append(std::make_shared<ElementAccess>(elem_inst));
	}
	return retvalues;
}

QList<std::shared_ptr<const TokenAccess>> ElementAccess::tokens() const {
	return element()->selfTokens();
}

TokenAccess::TokenAccess(std::shared_ptr<const SyntaxElement> elm_inst, std::shared_ptr<const lib_token::IToken> token_inst)
	: element_bind(elm_inst), token_store(token_inst) {}

std::shared_ptr<const SyntaxElement> TokenAccess::bind() const { return element_bind; }

std::shared_ptr<const lib_token::IToken> TokenAccess::token() const { return token_store; }