Alexander Udalov
a7b88e9485
And String.length as well. This is done for JVM interoperability: java.lang.CharSequence is an open class and has a function 'length()' which should be implemented in subclasses somehow. A minor unexpected effect of this is that String.length() is now a compile-time constant (it wasn't such as a property because properties are not supported in compile-time constant evaluation) #KT-3571 Fixed
34 lines
796 B
Kotlin
34 lines
796 B
Kotlin
package kt244
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// KT-244 Use dataflow info while resolving variable initializers
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fun f(s: String?) {
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if (s != null) {
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<!DEBUG_INFO_SMARTCAST!>s<!>.length() //ok
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var <!UNUSED_VARIABLE!>i<!> = <!DEBUG_INFO_SMARTCAST!>s<!>.length() //error: Only safe calls are allowed on a nullable receiver
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System.out.println(<!DEBUG_INFO_SMARTCAST!>s<!>.length()) //error
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}
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}
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// more tests
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class A(a: String?) {
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val b = if (a != null) <!DEBUG_INFO_SMARTCAST!>a<!>.length() else 1
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{
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if (a != null) {
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val <!UNUSED_VARIABLE!>c<!> = <!DEBUG_INFO_SMARTCAST!>a<!>.length()
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}
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}
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val i : Int
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{
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if (a is String) {
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i = <!DEBUG_INFO_SMARTCAST!>a<!>.length()
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}
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else {
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i = 3
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}
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}
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}
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