107 lines
3.5 KiB
PHP
107 lines
3.5 KiB
PHP
<?php
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require_once "PicturedTask.php";
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class VerilogTask extends PicturedTask
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{
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private string $test_bench_fn; // test bench file name
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private string $explanation; // short explanation for the marking
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private const FAILED_MARK = "[FAILED]"; // mark at the beginning of testbench results indicating a failed combination
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public function __construct(array &$a = null)
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{
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parent::__construct("verilog", $a);
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$this->explanation = $a["explanation"] ?? "";
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$this->test_bench_fn = $a["test_bench_fn"] ?? "";
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}
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private function verifyCode(): bool
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{
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// check that no $function calls are in the code
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if (str_contains($this->player_answer, "$")) {
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$this->explanation .= "A kód nem tartalmazhat \$függvényhívásokat!\n";
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return false;
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}
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return true;
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}
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private function executeTest(): bool
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{
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// store the user's answer
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$module_code_fn = tempnam(sys_get_temp_dir(), "verilogtask_user_module_");
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file_put_contents($module_code_fn, $this->getPlayerAnswer());
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// modify the test bench and save into a separate file
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$test_bench_fn = tempnam(sys_get_temp_dir(), "verilogtask_test_bench_");
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$include_line = "`include \"$module_code_fn\"\n\n";
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$tb = $include_line . file_get_contents($this->getGameDir() . DIRECTORY_SEPARATOR . $this->test_bench_fn);
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file_put_contents($test_bench_fn, $tb);
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// run the simulation
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$output_fn = sys_get_temp_dir() . DIRECTORY_SEPARATOR . uniqid("verilogtask_output_");
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$iverilog_cmd = "iverilog $test_bench_fn -o $output_fn 2>&1";
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$compilation_log = shell_exec($iverilog_cmd);
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$failed_count = 0;
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if (!is_null($compilation_log)) {
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$compilation_log = str_replace([$module_code_fn, $test_bench_fn], ["[kód]", "[tesztkörnyezet]"], $compilation_log);
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$this->explanation .= "Fordítási hiba:\n\n" . (string)($compilation_log);
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$failed_count = PHP_INT_MAX;
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goto cleanup;
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}
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if (file_exists($output_fn)) {
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$tb_output = shell_exec("$output_fn");
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$tb_output_lines = array_map(fn($line) => trim($line), explode("\n", $tb_output));
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$failed_trimlen = strlen(self::FAILED_MARK);
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foreach ($tb_output_lines as $line) {
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if (str_starts_with($line, self::FAILED_MARK)) {
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$this->explanation .= substr($line, $failed_trimlen) . "\n";
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$failed_count++;
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}
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}
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if ($failed_count == 0) {
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$this->explanation .= "Minden rendben! :)";
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} else {
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$this->explanation = "$failed_count db hiba:\n\n" . $this->explanation;
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}
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}
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cleanup:
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// remove the temporary files
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@unlink($module_code_fn);
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@unlink($test_bench_fn);
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@unlink($output_fn);
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return $failed_count == 0;
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}
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public function staticCheck(): void
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{
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$this->explanation = "";
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// verify code
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$mark = 0.0;
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if ($this->verifyCode()) {
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// run the simulation
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$test_ok = $this->executeTest();
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$mark = $test_ok ? 1.0 : 0.0; // FIXME
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}
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$this->setMark($mark);
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}
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public function toArray(string $mode = "all"): array
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{
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$a = parent::toArray($mode);
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$a["explanation"] = $this->explanation;
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if ($mode == "all") {
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$a["test_bench_fn"] = $this->test_bench_fn;
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}
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return $a;
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}
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}
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