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Christoph M. Becker
56804e3221
We add support for creating `VT_ERROR` variants via `__construct()`, and allow casting to int via `variant_cast()` and `variant_set_type()`. We do not, however, allow type conversion by other means, to avoid otherwise easily introduced type confusion. VB(A) also only allows explicit type conversion. We also introduce `DISP_E_PARAMNOTFOUND` which might be the most important `scode` for this purpose, since this allows to skip optional parameters in method calls. Closes GH-8886.
37 lines
835 B
PHP
37 lines
835 B
PHP
--TEST--
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Bug GH-8750 (Can not create VT_ERROR variant type) - cast and conversion
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--EXTENSIONS--
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com_dotnet
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--FILE--
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<?php
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$error = new variant(DISP_E_PARAMNOTFOUND, VT_ERROR);
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// explicit variant_cast() to int is supported if in range
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echo variant_cast($error, VT_I4), PHP_EOL;
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// however, explicit (int) casts are not supported
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echo (int) $error, PHP_EOL;
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// nor are implicit conversions
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try {
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echo 1 + $error, PHP_EOL;
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} catch (TypeError $err) {
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echo $err->getMessage(), PHP_EOL;
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}
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// we can retrieve the type
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echo variant_get_type($error), PHP_EOL;
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// and change it via variant_set_type()
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variant_set_type($error, VT_I4);
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echo variant_get_type($error), PHP_EOL;
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?>
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--EXPECTF--
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-2147352572
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Warning: Object of class variant could not be converted to int in %s on line %d
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1
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Unsupported operand types: int + variant
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10
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3
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