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added expected type for assignment and elvis operator

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changed return type for safe operator (now it works as a?.b is Nullable type, constructions like a?.b.c need another parsing)
This commit is contained in:
svtk
2011-08-17 12:21:26 +04:00
parent fabf7aab5f
commit 9ebffafd89
4 changed files with 96 additions and 100 deletions
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idea/testData/checker/infos/Autocasts.jet
+64 -1
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@@ -152,4 +152,67 @@ fun getStringLength(obj : Any) : Char? {
if (obj !is String)
return null
return <info>obj</info>.get(0) // no cast to String is needed
}
}
fun toInt(i: Int?): Int = if (i != null) <info descr="Automatically cast to Int">i</info> else 0
fun illegalWhenBody(a: Any): Int = when(a) {
is Int => <info descr="Automatically cast to Int">a</info>
is String => <error>a</error>
}
fun illegalWhenBlock(a: Any): Int {
when(a) {
is Int => return <info descr="Automatically cast to Int">a</info>
is String => return <error>a</error>
}
}
fun declarations(a: Any?) {
if (a is String) {
val p4: (Int, String) = (2, <info descr="Automatically cast to String">a</info>)
}
if (a is String?) {
if (a != null) {
val s: String = <info descr="Automatically cast to String">a</info>
}
}
if (a != null) {
if (a is String?) {
val s: String = <info descr="Automatically cast to String">a</info>
}
}
}
fun vars(a: Any?) {
var b: Int = 0
if (a is Int) {
b = <info descr="Automatically cast to Int">a</info>
}
}
fun tuples(a: Any?) {
if (a != null) {
val s: (Any, String) = (<info descr="Automatically cast to Any">a</info>, <error>a</error>)
}
if (a is String) {
val s: (Any, String) = (<info descr="Automatically cast to Any">a</info>, <info descr="Automatically cast to String">a</info>)
}
fun illegalTupleReturnType(): (Any, String) = (<error>a</error>, <error>a</error>)
if (a is String) {
fun legalTupleReturnType(): (Any, String) = (<info descr="Automatically cast to Any">a</info>, <info descr="Automatically cast to String">a</info>)
}
val illegalFunctionLiteral: Function0<Int> = <error>{ <error>a</error> }</error>
val illegalReturnValueInFunctionLiteral: Function0<Int> = { (): Int => <error>a</error> }
if (a is Int) {
val legalFunctionLiteral: Function0<Int> = { <info descr="Automatically cast to Int">a</info> }
val alsoLegalFunctionLiteral: Function0<Int> = { (): Int => <info descr="Automatically cast to Int">a</info> }
}
}
fun returnFunctionLiteralBlock(a: Any?): Function0<Int> {
if (a is Int) return { <info descr="Automatically cast to Int">a</info> }
else return { 1 }
}
fun returnFunctionLiteral(a: Any?): Function0<Int> =
if (a is Int) { (): Int => <info descr="Automatically cast to Int">a</info> }
else { () => 1 }
fun illegalTupleReturnType(a: Any): (Any, String) = (a, <error>a</error>)
fun declarationInsidePattern(x: (Any, Any)): String = when(x) { is (val a is String, *) => <info descr="Automatically cast to String">a</info>; else => "something" }