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<?php |
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|
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namespace Dudlewebs\WPMCS\s3\JmesPath; |
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|
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/** |
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* Provides CLI debugging information for the AST and Compiler runtimes. |
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*/ |
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class DebugRuntime |
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{ |
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private $runtime; |
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private $out; |
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private $lexer; |
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private $parser; |
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public function __construct(callable $runtime, $output = null) |
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{ |
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$this->runtime = $runtime; |
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$this->out = $output ?: \STDOUT; |
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$this->lexer = new Lexer(); |
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$this->parser = new Parser($this->lexer); |
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} |
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public function __invoke($expression, $data) |
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{ |
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if ($this->runtime instanceof CompilerRuntime) { |
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return $this->debugCompiled($expression, $data); |
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} |
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return $this->debugInterpreted($expression, $data); |
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} |
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private function debugInterpreted($expression, $data) |
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{ |
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return $this->debugCallback(function () use($expression, $data) { |
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$runtime = $this->runtime; |
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return $runtime($expression, $data); |
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}, $expression, $data); |
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} |
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private function debugCompiled($expression, $data) |
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{ |
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$result = $this->debugCallback(function () use($expression, $data) { |
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$runtime = $this->runtime; |
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return $runtime($expression, $data); |
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}, $expression, $data); |
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$this->dumpCompiledCode($expression); |
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return $result; |
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} |
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private function dumpTokens($expression) |
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{ |
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$lexer = new Lexer(); |
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\fwrite($this->out, "Tokens\n======\n\n"); |
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$tokens = $lexer->tokenize($expression); |
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foreach ($tokens as $t) { |
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\fprintf($this->out, "%3d %-13s %s\n", $t['pos'], $t['type'], \json_encode($t['value'])); |
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} |
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\fwrite($this->out, "\n"); |
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} |
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private function dumpAst($expression) |
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{ |
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$parser = new Parser(); |
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$ast = $parser->parse($expression); |
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\fwrite($this->out, "AST\n========\n\n"); |
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\fwrite($this->out, \json_encode($ast, \JSON_PRETTY_PRINT) . "\n"); |
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} |
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private function dumpCompiledCode($expression) |
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{ |
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\fwrite($this->out, "Code\n========\n\n"); |
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$dir = \sys_get_temp_dir(); |
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$hash = \md5($expression); |
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$functionName = "jmespath_{$hash}"; |
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$filename = "{$dir}/{$functionName}.php"; |
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\fwrite($this->out, "File: {$filename}\n\n"); |
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\fprintf($this->out, \file_get_contents($filename)); |
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} |
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private function debugCallback(callable $debugFn, $expression, $data) |
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{ |
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\fprintf($this->out, "Expression\n==========\n\n%s\n\n", $expression); |
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$this->dumpTokens($expression); |
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$this->dumpAst($expression); |
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\fprintf($this->out, "\nData\n====\n\n%s\n\n", \json_encode($data, \JSON_PRETTY_PRINT)); |
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$startTime = \microtime(\true); |
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$result = $debugFn(); |
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$total = \microtime(\true) - $startTime; |
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\fprintf($this->out, "\nResult\n======\n\n%s\n\n", \json_encode($result, \JSON_PRETTY_PRINT)); |
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\fwrite($this->out, "Time\n====\n\n"); |
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\fprintf($this->out, "Total time: %f ms\n\n", $total); |
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return $result; |
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} |
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} |
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