public function addFunction($name, $callback)
{
$this->compilerContext->addFunction($name, $callback);
}
/**
* @return string
* @throws CompilerException
*/
public function compile()
{
$namespace = null;
$className = trim($this->context->getFullyQualifiedClassName(), "\\");
$pos = strrpos($className, "\\");
if ($pos !== false) {
$namespace = substr($className, 0, $pos);
$className = substr($className, $pos + 1);
}
// prelude
$ret = "";
$ret .= "<?php\n";
if ($namespace) {
$ret .= "namespace {$namespace};\n";
$ret .= "\n";
}
foreach ($this->context->getUses() as $alias => $fqn) {
$ret .= "use {$fqn} as {$alias};\n";
}
$ret .= "\n";
$ret .= "class {$className} implements \\Skrz\\Templating\\Engine\\TemplateInterface {\n";
$ret .= "\n";
$ret .= "public function __invoke(array \$____) {\n";
$ret .= "\t\$this->render(\$____);\n";
$ret .= "}\n";
$ret .= "\n";
$ret .= "public function fetch(array \$____) {\n";
$ret .= "\tob_start();\n";
$ret .= "\t\$this->render(\$____);\n";
$ret .= "\treturn ob_get_clean();\n";
$ret .= "}\n";
$ret .= "\n";
$ret .= "public function fetchFunction(\$functionName, array \$____) {\n";
$ret .= "\tob_start();\n";
$ret .= "\t\$this->{'render' . \$functionName}(\$____);\n";
$ret .= "\treturn ob_get_clean();\n";
$ret .= "}\n";
$ret .= "\n";
$ret .= "public function renderFunction(\$functionName, array \$____) {\n";
$ret .= "\t\$this->{'render' . \$functionName}(\$____);\n";
$ret .= "}\n";
$ret .= "\n";
// find function declarations
$functionDeclarationFinder = new FunctionDeclarationsWalker();
$functionDeclarationFinder->walk($this->context->getTemplate());
// function declarations have to be registered first and compiled into render functions,
// otherwise recursive calls would not be possible
$ret .= "private \$functions = array(";
foreach ($functionDeclarationFinder->getDeclarations() as $declaration) {
$ret .= var_export($declaration->getName(), true) . "=>true,";
$this->context->addFunction($declaration->getName(), function (Compiler $compiler, FunctionNode $node) use($declaration) {
$statement = "";
$args = "array(";
foreach ($node->getArguments() as $name => $expression) {
$statementAndExpression = $compiler->walkExpression($expression);
$statement .= $statementAndExpression->getStatement();
$args .= var_export($name, true) . '=>' . $statementAndExpression->getExpression() . ",";
}
$args .= ")";
return new FunctionCompilerResult($statement . "\$this->" . $this->getRenderName($declaration->getName()) . "(" . $args . " + \$____);");
});
}
$ret .= ");\n\n";
$ret .= "public function hasFunction(\$functionName) {\n";
$ret .= "\treturn isset(\$this->functions[\$functionName]);\n";
$ret .= "}\n\n";
foreach ($functionDeclarationFinder->getDeclarations() as $declaration) {
$ret .= $this->compileRender($declaration->getName(), $declaration->getBody(), $declaration->getDefaultArguments());
}
// compile main render
$ret .= $this->compileRender("", array($this->context->getTemplate()));
// end
$ret .= "\n";
$ret .= "}\n";
return $ret;
}
