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88 lines
3.0 KiB
PHP
88 lines
3.0 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Psalm\Tests;
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use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait;
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/**
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* tests for the handling of code using the PHP FFI extension
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*
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* https://www.php.net/manual/en/book.ffi.php
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*/
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class FFITest extends TestCase
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{
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use ValidCodeAnalysisTestTrait;
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public function providerValidCodeParse(): iterable
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{
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return [
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// Examples are from https://www.php.net/manual/en/ffi.examples-basic.php
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// Some of them needed tweaks, e.g. due to unsafe use of var_dump().
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'Example #1 Calling a function from shared library' => [
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'code' => '<?php
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$ffi = FFI::cdef(
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"int printf(const char *format, ...);", // this is a regular C declaration
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"libc.so.6"
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);
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$ffi->printf("Hello %s!\n", "world");
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',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '7.4',
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],
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'Example #3 Accessing existing C variables' => [
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'code' => '<?php
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$ffi = FFI::cdef(
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"int errno;", // this is a regular C declaration
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"libc.so.6"
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);
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echo $ffi->errno;
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',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '7.4',
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],
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'Example #5 Working with C arrays' => [
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'code' => '<?php
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// create C data structure
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$a = FFI::new("long[1024]");
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// work with it like with a regular PHP array
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$size = count($a);
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for ($i = 0; $i < $size; $i++) {
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$a[$i] = $i;
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}
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$sum = 0;
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/** @psalm-suppress MixedAssignment */
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foreach ($a as $n) {
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/** @psalm-suppress MixedOperand */
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$sum += $n;
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}
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',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '7.4',
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],
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'Example #6 Working with C enums' => [
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'code' => '<?php
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$a = FFI::cdef(
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"typedef enum _zend_ffi_symbol_kind {
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ZEND_FFI_SYM_TYPE,
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ZEND_FFI_SYM_CONST = 2,
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ZEND_FFI_SYM_VAR,
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ZEND_FFI_SYM_FUNC
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} zend_ffi_symbol_kind;"
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);
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echo $a->ZEND_FFI_SYM_TYPE;
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echo $a->ZEND_FFI_SYM_CONST;
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echo $a->ZEND_FFI_SYM_VAR;
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',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '7.4',
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],
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];
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}
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}
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