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47 lines
1.2 KiB
PHP
47 lines
1.2 KiB
PHP
<?php
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namespace Amp\Internal;
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/**
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* Formats a stacktrace obtained via `debug_backtrace()`.
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*
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* @param array $trace Output of `debug_backtrace()`.
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*
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* @return string Formatted stacktrace.
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*
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* @internal
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*/
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function formatStacktrace(array $trace): string {
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return implode("\n", array_map(function ($e, $i) {
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$line = "#{$i} {$e['file']}:{$e['line']} ";
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if ($e["type"]) {
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$line .= $e["class"] . $e["type"];
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}
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return $line . $e["function"] . "()";
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}, $trace, array_keys($trace)));
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}
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/**
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* Creates a `TypeError` with a standardized error message.
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*
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* @param string[] $expected Expected types.
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* @param mixed $given Given value.
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*
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* @return \TypeError
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*
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* @internal
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*/
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function createTypeError(array $expected, $given): \TypeError {
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$givenType = \is_object($given) ? \sprintf("instance of %s", \get_class($given)) : \gettype($given);
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if (\count($expected) === 1) {
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$expectedType = "Expected the following type: " . \array_pop($expected);
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} else {
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$expectedType = "Expected one of the following types: " . \implode(", ", $expected);
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}
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return new \TypeError("{$expectedType}; {$givenType} given");
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}
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