TypePHP 编译器
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55 lines
1.9 KiB
55 lines
1.9 KiB
<?php
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use TypePhp\CompilerTest;
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/**
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* Typed int/float division, int modulo and int shifts must not be emitted as
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* raw C++ operators: raw zend_long division truncates (PHP: 7 / 2 === 3.5),
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* a zero divisor must raise the catchable DivisionByZeroError instead of
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* being undefined behavior (int) or INF (float), and out-of-range shift
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* counts are undefined behavior in C++ while PHP defines them.
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*/
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final class TypedScalarArithmeticCodegenTest extends \BaseTest
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{
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public function testTypedIntDivisionRoutesThroughVariant(): void
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{
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$code = $this->compileFixture();
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self::assertStringContainsString('((php::Var(a)) / (php::Var(b)))', $code);
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self::assertStringNotContainsString('((a) / (b))', $code);
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}
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public function testTypedIntModuloRoutesThroughPhpMod(): void
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{
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$code = $this->compileFixture();
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self::assertStringContainsString('php::fn::mod(a, b)', $code);
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self::assertStringNotContainsString('((a) % (b))', $code);
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}
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public function testTypedIntShiftsRouteThroughVariant(): void
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{
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$code = $this->compileFixture();
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self::assertStringContainsString('((php::Var(a)) << (php::Var(b)))', $code);
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self::assertStringContainsString('((php::Var(a)) >> (php::Var(b)))', $code);
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self::assertStringNotContainsString('((a) << (b))', $code);
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self::assertStringNotContainsString('((a) >> (b))', $code);
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}
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private function compileFixture(): string
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{
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global $translator;
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$compiler = CompilerTest::create(TYPEPHP_ROOT_PATH);
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$translator = $compiler;
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$source = TYPEPHP_ROOT_PATH . '/phpunit/code/typed-scalar-arithmetic-codegen.php';
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$compiler->addFiles([$source]);
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$compiler->prepareFile($source);
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$generated = $compiler->convertFile($source);
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$code = file_get_contents($generated);
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self::assertIsString($code);
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return $code;
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}
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}
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