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<?php |
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//[PHPCOMPRESSOR(remove,start)] |
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namespace samsonphp\generator; |
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class Generator |
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{ |
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/** Single quote for string value **/ |
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const QUOTE_SINGLE = "'"; |
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/** Double quote for string value **/ |
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const QUOTE_DOUBLE = '"'; |
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/** @var string Generated code */ |
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public $code = ''; |
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/** @var integer Level of code line tabbing for new lines */ |
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public $tabs = 0; |
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/** @var string Current class name */ |
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public $class; |
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/** |
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* Add simple text to current code position |
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* @param string $text Text to add |
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* @return self |
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*/ |
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public function text($text = '') |
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{ |
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$this->code .= $text; |
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return $this; |
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} |
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/** |
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* Add current tabbing level to current line. |
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* |
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* @param string $endText Text to add after tabs |
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* @param integer $tabs Amount of tabs to add |
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* @param string $startText Text to add before tabs |
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* @return Generator Chaining |
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*/ |
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public function tabs($endText = '', $tabs = null, $startText = '') |
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{ |
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// Generate tabs array |
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$tabs = isset($tabs) ? array_fill(0, $tabs, "\t") : array(); |
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// Add necessary amount of tabs to line and append text |
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$this->text($startText.implode('', $tabs) . $endText); |
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return $this; |
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} |
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/** |
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* Add new line to code. |
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* |
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* @param string $text Code to add to new line |
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* @param integer $tabs Tabs count |
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* @return self |
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*/ |
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public function newline($text = '', $tabs = null) |
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{ |
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// If no tabs count is specified set default tabs |
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if (!isset($tabs)) { |
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$tabs = $this->tabs; |
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} |
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return $this->tabs($text, $tabs, "\n"); |
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} |
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/** |
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* Add single line comment to code |
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* @param string $text Comment text |
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* @return self Chaining |
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*/ |
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public function comment($text = '') |
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{ |
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return isset($text{0}) ? $this->newline("// " . $text) : $this; |
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} |
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/** |
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* Add multi-line comment. If array with one line is passed |
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* we create special syntax comment in one line, usually |
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* used for class variable definition in more compact form. |
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* |
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* @param array $lines Array of comments lines |
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* @return self Chaining |
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*/ |
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public function multicomment(array $lines = array()) |
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{ |
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// If array is not empty |
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if (sizeof($lines)) { |
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$this->newline("/**"); |
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// Multi-comment with single line |
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if (sizeof($lines) === 1) { |
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$this->text(' '.$lines[0].' */'); |
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} else { // Iterate comments lines and if comment line is not empty |
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foreach ($lines as $line) { |
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if (isset($line{0})) { |
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$this->newline(" * " . $line); |
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} |
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} |
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return $this->newline(" */"); |
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} |
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} else { |
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return $this; |
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} |
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} |
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/** |
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* Add string value definition |
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* @param string $value String value to add |
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* @param string $tabs Tabs count |
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* @param string $quote Type of quote |
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* @return self |
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*/ |
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public function stringvalue($value, $tabs = null, $quote = self::QUOTE_SINGLE) |
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{ |
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return $this->tabs($quote . $value . $quote, $tabs); |
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} |
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/** |
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* Add array values definition |
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* @param array $items Array key-value pairs collection |
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* @return self Chaining |
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*/ |
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public function arrayvalue(array $items = array()) |
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{ |
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$this->text('array('); |
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$this->tabs++; |
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/* |
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// TODO: Add array key-value выравнивание |
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* |
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// Determine largest key |
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// Convert array to array of key lengths |
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$lengths = array_map('strlen', array_keys($items)); |
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// Get lergest element |
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$maxLength = max( $lengths ); |
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// Find largest position |
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$key = array_search( $maxLength, $lengths ); |
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$tab_size = 3; |
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$tabs = round($maxLength / $tab_size); |
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*/ |
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// Iterate array items |
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foreach ($items as $key => $value) { |
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// Start array key definition |
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$this->newline()->stringvalue($key, 2)->tabs('=>', 1); |
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// If item value is array - recursion |
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if (is_array($value)) $this->arrayvalue($value)->text(','); |
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// Output value |
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else $this->stringvalue($value, 1)->text(','); |
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} |
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$this->newline(')'); |
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$this->tabs--; |
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return $this; |
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} |
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/** |
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* Add variable definition with array merging. |
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* |
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* @param string $name Variable name |
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* @param array $value Array of key-value items for merging it to other array |
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* @param string $arrayName Name of array to merge to, if no is specified - $name is used |
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* @return self Chaining |
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*/ |
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public function defarraymerge($name, array $value, $arrayName = null) |
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{ |
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// If no other array is specified - set it to current |
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if (!isset($arrayName)) { |
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$arrayName = $name; |
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} |
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return $this->defvar($name, $value, ' = array_merge( ' . $arrayName . ', ', '')->text(');'); |
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} |
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/** |
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* Add variable definition. |
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* |
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* @param string $name Variable name |
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* @param string $value Variable default value |
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* @param string $after String to insert after variable definition |
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* @param string $end Closing part of variable definition |
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* @param string $quote Type of quote |
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* @return Generator Chaining |
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*/ |
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public function defVar($name, $value = null, $after = ' = ', $end = ';', $quote = self::QUOTE_SINGLE) |
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{ |
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// Output variable definition |
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$this->newline($name); |
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$t = gettype($value); |
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// Get variable type |
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switch (gettype($value)) { |
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case 'integer': |
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case 'boolean': |
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case 'double': |
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$this->text($after)->text($value)->text($end); |
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break; |
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case 'string': |
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$this->text($after)->stringvalue($value, 0, $quote)->text($end); |
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break; |
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case 'array': |
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$this->text($after)->arrayvalue($value)->text($end); |
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break; |
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case 'NULL': |
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case 'object': |
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case 'resource': |
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default: |
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$this->text(';'); |
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} |
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return $this; |
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} |
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/** |
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* Add class definition. |
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* |
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* @param string $name Class name |
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* @param string $extends Parent class name |
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* @param array $implements Interfaces names collection |
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* @return self Chaining |
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*/ |
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public function defClass($name, $extends = null, array $implements = array()) |
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{ |
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// If we define another class, and we were in other class context |
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if (isset($this->class) && ($name !== $this->class)) { |
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// Close old class context |
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$this->endclass(); |
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} |
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// Save new class name |
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$this->class = $name; |
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// Class definition start |
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$this->newline('class ' . $name); |
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// Parent class definition |
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if (isset($extends)) { |
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$this->text(' extends ' . $extends); |
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} |
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// Interfaces |
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if (sizeof($implements)) { |
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$this->text(' implements ' . implode(',', $implements)); |
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} |
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$this->newline('{'); |
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$this->tabs++; |
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return $this; |
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} |
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/** |
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* Close current class context. |
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* |
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* @return self Chaining |
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*/ |
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public function endclass() |
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{ |
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// Close class definition |
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$this->newline('}') |
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// Add one empty line after class definition |
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->newline(''); |
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$this->tabs--; |
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return $this; |
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} |
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/** |
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* Add class variable definition. |
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* |
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* @param string $name Variable name |
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* @param string $visibility Variable accessibility level |
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* @param string|null $comment Variable description |
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* @param string $value Variable default value |
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* @return self Chaining |
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*/ |
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public function defClassVar($name, $visibility = 'public', $comment = null, $value = null) |
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{ |
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if (isset($comment)) { |
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$this->multicomment(array($comment)); |
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} |
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return $this->defvar($visibility . ' ' . $name, $value)->newline(); |
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} |
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/** |
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* Add class constant definition. |
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* |
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* @param string $name Constant name |
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* @param string $value Variable default value |
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* @param string|null $comment Variable description |
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* @return self Chaining |
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*/ |
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public function defClassConst($name, $value, $comment = null) |
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{ |
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return $this->defClassVar(strtoupper($name), 'const', $comment, $value); |
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} |
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/** |
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* Write file to disk |
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* @param string $name Path to file |
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* @param string $format Output file format |
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*/ |
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public function write($name, $format = 'php') |
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{ |
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$code = $this->flush(); |
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if ($format == 'php') $code = '<?php ' . $code; |
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file_put_contents($name, $code, 0775); |
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} |
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/** |
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* Flush internal data and return it. |
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* |
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* @return string Current generated code |
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*/ |
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public function flush() |
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{ |
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// We should use 4 spaces instead of tabs |
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$code = str_replace("\t", ' ', $this->code); |
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$this->tabs = 0; |
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$this->code = ''; |
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$this->class = null; |
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return $code; |
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} |
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/** |
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* Add function definition |
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* @param string $name Function name |
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* @return self Chaining |
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*/ |
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public function deffunction($name) |
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{ |
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return $this->newline('function ' . $name . '()') |
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->newline('{') |
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->tabs('', 1); |
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} |
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354
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/** |
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* Close current function context |
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* @return\samson\activerecord\Generator |
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*/ |
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public function endfunction() |
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{ |
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return $this->newline('}')->newline(''); |
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} |
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/** |
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* Constructor |
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* @param string $namespace Code namespace |
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*/ |
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public function __construct($namespace = null) |
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{ |
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// If namespace is defined - set it |
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if (isset($namespace)) $this->defnamespace($namespace); |
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} |
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/** |
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* Add namespace declaration |
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* @param string $name Namespace name |
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* @return self |
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*/ |
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private function defnamespace($name) |
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{ |
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return $this->newline('namespace ' . $name . ';')->newline(); |
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} |
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} |
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//[PHPCOMPRESSOR(remove,end)] |
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Adding braces to control structures avoids accidental mistakes as your code changes: