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<?php |
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/** |
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* This file is part of Railt package. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Railt\SDL\IR; |
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use Railt\SDL\Exception\CompilerException; |
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use Railt\SDL\Exception\NotFoundException; |
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use Railt\SDL\IR\SymbolTable\VarSymbol; |
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use Railt\SDL\IR\SymbolTable\VarSymbolInterface; |
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/** |
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* Class SymbolTable |
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*/ |
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class SymbolTable implements SymbolTableInterface |
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{ |
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/** |
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* @var int |
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*/ |
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private $id = 0; |
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/** |
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* @var array|VarSymbolInterface[] |
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*/ |
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private $variables = []; |
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/** |
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* @param VarSymbolInterface $record |
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* @return int |
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*/ |
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public function declare(VarSymbolInterface $record): int |
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{ |
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$id = $this->id++; |
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$this->variables[$id] = $record; |
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return $id; |
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} |
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/** |
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* @param int $addr |
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* @return VarSymbolInterface |
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* @throws NotFoundException |
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*/ |
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public function fetch(int $addr): VarSymbolInterface |
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{ |
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if (! isset($this->variables[$addr])) { |
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$error = \sprintf('Mismatched variable address 0x%08x', $addr); |
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throw new NotFoundException($error); |
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} |
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return $this->variables[$addr]; |
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} |
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/** |
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* @return VarSymbol[]|\Traversable<int,VarSymbol> |
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*/ |
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public function getIterator(): \Traversable |
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{ |
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foreach ($this->variables as $id => $symbol) { |
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yield $id => $symbol; |
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} |
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} |
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/** |
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* @return array |
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*/ |
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public function __debugInfo(): array |
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{ |
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$variables = []; |
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foreach ($this->variables as $id => $var) { |
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$variables[$id] = (string)$var; |
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} |
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return [ |
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'size' => $this->count(), |
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'variables' => $variables |
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]; |
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} |
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/** |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return \count($this->variables); |
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} |
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} |
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railt /
sdl
This check marks PHPDoc comments that could not be parsed by our parser. To see which comment annotations we can parse, please refer to our documentation on supported doc-types.