Smarty v5 update test, initial code setup

src/Compile/DefaultHandlerFunctionCallCompiler.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Smarty\Compile;
+
+use Smarty\Compiler\Template;
+
+class DefaultHandlerFunctionCallCompiler extends Base {
+
+	/**
+	 * Attribute definition: Overwrites base class.
+	 *
+	 * @var array
+	 * @see BasePlugin
+	 */
+	public $optional_attributes = ['_any'];
+
+	/**
+	 * Compiles code for the execution of a registered function
+	 *
+	 * @param array $args array with attributes from parser
+	 * @param Template $compiler compiler object
+	 * @param array $parameter array with compilation parameter
+	 * @param string $tag name of tag
+	 * @param string $function name of function
+	 *
+	 * @return string compiled code
+	 * @throws \Smarty\CompilerException
+	 * @throws \Smarty\Exception
+	 */
+	public function compile($args, Template $compiler, $parameter = [], $tag = null, $function = null): string
+	{
+		// check and get attributes
+		$_attr = $this->getAttributes($compiler, $args);
+		unset($_attr['nocache']);
+
+		$_paramsArray = $this->formatParamsArray($_attr);
+		$_params = 'array(' . implode(',', $_paramsArray) . ')';
+
+		$output = "\$_smarty_tpl->getSmarty()->getRuntime('DefaultPluginHandler')->getCallback(" . var_export($function, true) .
+			",'function')($_params, \$_smarty_tpl)";
+
+		if (!empty($parameter['modifierlist'])) {
+			$output = $compiler->compileModifier($parameter['modifierlist'], $output);
+		}
+		return "<?php echo {$output};?>\n";
+	}
+}