protected function doInterpret(IContext $ctx, $l, $r)
{
if ($r == 0) {
throw new DivisionByZero('Деление на 0');
}
$ctx->set($this, $l / $r);
}
function interpret(IContext $ctx)
{
$foo = $ctx->getFunction($this->name) ?: (isset(self::$list[$this->name]) ? self::$list[$this->name] : null);
if (!$foo) {
throw new FunctionNotFoundException("Function {$this->name} not found");
}
$values = array_map(function ($e) use($ctx) {
$e->interpret($ctx);
return $ctx->get($e);
}, $this->arguments);
$ctx->set($this, call_user_func_array($foo, $values));
}
public function testFunc()
{
$fl = new I\FL('twice(3.14)');
$this->assertEquals($fl->evaluate(), '6.28');
$fl = new I\FL('PI()');
$this->assertEquals($fl->evaluate(), pi());
$fl = new I\FL('sum(cos(0), 2, 3, twice(2), 5)');
$this->assertEquals($fl->evaluate(), '15');
$fl = new I\FL('sum(cos(0), 2, 3, twice(2), 5)');
$ctx = new I\IContext();
$ctx->regFunction('sum', function () {
return implode('', func_get_args());
});
$this->assertEquals($fl->evaluate($ctx), '12345');
}
protected function doInterpret(IContext $ctx, $l, $r)
{
$ctx->set($this, pow($l, $r));
}
function interpret(IContext $context)
{
$context->set($this, $this->value);
}
