Svetlana Isakova
d7a60f5fed
KT-2369 Variable is not marked as uninitialized in 'finally' section #KT-2369 fixed KT-2585 Code in try-finally is incorrectly marked as unreachable #KT-2585 fixed KT-2972 Wrong "unused value" warning when finally is present #KT-2972 fixed
28 lines
876 B
Kotlin
28 lines
876 B
Kotlin
//KT-2972 Wrong "unused value" warning when finally is present
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import java.io.Closeable
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public inline fun <T: Closeable, R> T.use(block: (T)-> R) : R {
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var closed = false
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try {
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return block(this)
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} catch (e: Exception) {
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closed = true // warning here
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try {
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this.close()
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} catch (closeException: Exception) {
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// eat the closeException as we are already throwing the original cause
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// and we don't want to mask the real exception
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// TODO on Java 7 we should call
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// e.addSuppressed(closeException)
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// to work like try-with-resources
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// http://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html#suppressed-exceptions
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}
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throw e
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} finally {
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if (!closed) {
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this.close()
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}
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}
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} |