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<?php |
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namespace Facade\Ignition\Solutions; |
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use Illuminate\Support\Facades\Blade; |
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use Illuminate\Support\Facades\Artisan; |
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use Facade\IgnitionContracts\RunnableSolution; |
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class MakeViewVariableOptionalSolution implements RunnableSolution |
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{ |
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private $variableName; |
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private $viewFile; |
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public function __construct($variableName = null, $viewFile = null) |
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{ |
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$this->variableName = $variableName; |
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$this->viewFile = $viewFile; |
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} |
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public function getSolutionTitle(): string |
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{ |
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return '$' . $this->variableName . ' is undefined'; |
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} |
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public function getDocumentationLinks(): array |
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{ |
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return []; |
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} |
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public function getSolutionActionDescription(): string |
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{ |
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$path = str_replace(base_path() . '/', '', $this->viewFile); |
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$output = [ |
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'Make the variable optional in the blade template.', |
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'Replace `{{ $' . $this->variableName . ' }}` with `{{ $' . $this->variableName . ' ?? \'\' }}`', |
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]; |
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return implode(PHP_EOL, $output); |
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} |
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public function getRunButtonText(): string |
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{ |
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return 'Make variable optional'; |
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} |
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public function getSolutionDescription(): string |
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{ |
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return ''; |
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} |
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public function getRunParameters(): array |
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{ |
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return [ |
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'variableName' => $this->variableName, |
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'viewFile' => $this->viewFile |
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]; |
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} |
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public function isRunnable(array $parameters = []) |
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{ |
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return $this->makeOptional($this->getRunParameters()) !== false; |
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} |
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public function run(array $parameters = []) |
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{ |
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$output = $this->makeOptional($parameters); |
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if ($output !== false) { |
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file_put_contents($parameters['viewFile'], $output); |
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} |
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} |
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public function makeOptional(array $parameters = []) |
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{ |
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$originalContents = file_get_contents($parameters['viewFile']); |
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$newContents = str_replace('$' . $parameters['variableName'], '$' . $parameters['variableName'] . " ?? ''", $originalContents); |
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// Compile blade, tokenize |
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$originalTokens = token_get_all(Blade::compileString($originalContents)); |
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$newTokens = token_get_all(Blade::compileString($newContents)); |
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// Generate what we expect the tokens to be after we change the blade file |
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$expectedTokens = []; |
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foreach ($originalTokens as $key => $token) { |
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$expectedTokens[] = $token; |
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if ($token[0] === T_VARIABLE && $token[1] === '$' . $parameters['variableName']) { |
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$expectedTokens[] = [T_WHITESPACE, ' ', $token[2]]; |
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$expectedTokens[] = [T_COALESCE, '??', $token[2]]; |
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$expectedTokens[] = [T_WHITESPACE, ' ', $token[2]]; |
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$expectedTokens[] = [T_CONSTANT_ENCAPSED_STRING, "''", $token[2]]; |
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} |
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} |
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if ($expectedTokens !== $newTokens) { |
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return false; |
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} |
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return $newContents; |
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} |
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} |
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facade /
ignition
Loading history...
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.