vendor/twig/twig/src/Node/MacroNode.php line 26

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  1. <?php
  3. /*
  4. * This file is part of Twig.
  5. *
  6. * (c) Fabien Potencier
  7. *
  8. * For the full copyright and license information, please view the LICENSE
  9. * file that was distributed with this source code.
  10. */
  12. namespace Twig\Node;
  14. use Twig\Compiler;
  15. use Twig\Error\SyntaxError;
  17. /**
  18. * Represents a macro node.
  19. *
  20. * @author Fabien Potencier <fabien@symfony.com>
  21. */
  22. class MacroNode extends Node
  23. {
  24. public const VARARGS_NAME = 'varargs';
  26. public function __construct(string $name, Node $body, Node $arguments, int $lineno, string $tag = null)
  27. {
  28. foreach ($arguments as $argumentName => $argument) {
  29. if (self::VARARGS_NAME === $argumentName) {
  30. throw new SyntaxError(sprintf('The argument "%s" in macro "%s" cannot be defined because the variable "%s" is reserved for arbitrary arguments.', self::VARARGS_NAME, $name, self::VARARGS_NAME), $argument->getTemplateLine(), $argument->getSourceContext());
  31. }
  32. }
  34. parent::__construct(['body' => $body, 'arguments' => $arguments], ['name' => $name], $lineno, $tag);
  35. }
  37. public function compile(Compiler $compiler)
  38. {
  39. $compiler
  40. ->addDebugInfo($this)
  41. ->write(sprintf('public function macro_%s(', $this->getAttribute('name')))
  42. ;
  44. $count = \count($this->getNode('arguments'));
  45. $pos = 0;
  46. foreach ($this->getNode('arguments') as $name => $default) {
  47. $compiler
  48. ->raw('$__'.$name.'__ = ')
  49. ->subcompile($default)
  50. ;
  52. if (++$pos < $count) {
  53. $compiler->raw(', ');
  54. }
  55. }
  57. if ($count) {
  58. $compiler->raw(', ');
  59. }
  61. $compiler
  62. ->raw('...$__varargs__')
  63. ->raw(")\n")
  64. ->write("{\n")
  65. ->indent()
  66. ->write("\$macros = \$this->macros;\n")
  67. ->write("\$context = \$this->env->mergeGlobals([\n")
  68. ->indent()
  69. ;
  71. foreach ($this->getNode('arguments') as $name => $default) {
  72. $compiler
  73. ->write('')
  74. ->string($name)
  75. ->raw(' => $__'.$name.'__')
  76. ->raw(",\n")
  77. ;
  78. }
  80. $compiler
  81. ->write('')
  82. ->string(self::VARARGS_NAME)
  83. ->raw(' => ')
  84. ;
  86. $compiler
  87. ->raw("\$__varargs__,\n")
  88. ->outdent()
  89. ->write("]);\n\n")
  90. ->write("\$blocks = [];\n\n")
  91. ;
  92. if ($compiler->getEnvironment()->isDebug()) {
  93. $compiler->write("ob_start();\n");
  94. } else {
  95. $compiler->write("ob_start(function () { return ''; });\n");
  96. }
  97. $compiler
  98. ->write("try {\n")
  99. ->indent()
  100. ->subcompile($this->getNode('body'))
  101. ->raw("\n")
  102. ->write("return ('' === \$tmp = ob_get_contents()) ? '' : new Markup(\$tmp, \$this->env->getCharset());\n")
  103. ->outdent()
  104. ->write("} finally {\n")
  105. ->indent()
  106. ->write("ob_end_clean();\n")
  107. ->outdent()
  108. ->write("}\n")
  109. ->outdent()
  110. ->write("}\n\n")
  111. ;
  112. }
  113. }
  115. class_alias('Twig\Node\MacroNode', 'Twig_Node_Macro');