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Limit "always null" scope: only for !!, is and dot; senseless comparison rolled back; "smart constant" information for nulls #KT-10029 Fixed

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This commit is contained in:
Mikhail Glukhikh
2015-11-23 14:50:20 +03:00
parent db42941586
commit 89e56093a2
41 changed files with 323 additions and 151 deletions
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idea/testData/checker/Nullability.kt
Vendored
+8 -8
View File
@@ -4,7 +4,7 @@ fun test() {
a.plus(1)
}
else {
<warning>a</warning>?.plus(1)
a?.plus(1)
}
val out : java.io.PrintStream? = null
@@ -28,7 +28,7 @@ fun test() {
}
if (out == null) {
<warning>out</warning>?.println()
out?.println()
} else {
out.println()
}
@@ -84,7 +84,7 @@ fun test() {
}
if (out == null) {
<warning>out</warning>?.println()
out?.println()
} else {
out.println()
}
@@ -131,12 +131,12 @@ fun test() {
while (out != null) {
out.println();
}
<warning>out</warning>?.println();
out?.println();
val out2 : java.io.PrintStream? = null
while (out2 == null) {
<warning>out2</warning>?.println();
out2?.println();
}
out2.println()
@@ -224,7 +224,7 @@ fun f7(s : String?, t : String?) {
}
s?.get(0)
if (!(s != null)) {
<warning>s</warning>?.get(0)
s?.get(0)
}
else {
s.get(0)
@@ -234,7 +234,7 @@ fun f7(s : String?, t : String?) {
s.get(0)
}
else {
<warning>s</warning>?.get(0)
s?.get(0)
}
s?.get(0)
t?.get(0)
@@ -253,7 +253,7 @@ fun f7(s : String?, t : String?) {
t?.get(0)
}
else {
<warning>s</warning>?.get(0)
s?.get(0)
t?.get(0)
}
}
idea/testData/highlighter/SmartCast.kt
Vendored
+7 -1
View File
@@ -1,6 +1,12 @@
class <info textAttributesKey="KOTLIN_CLASS">My</info>(val <info textAttributesKey="KOTLIN_INSTANCE_PROPERTY"><info textAttributesKey="KOTLIN_PARAMETER"><info textAttributesKey="KOTLIN_PROPERTY_WITH_BACKING_FIELD">x</info></info></info>: <info textAttributesKey="KOTLIN_CLASS">Int</info>?)
fun <info textAttributesKey="KOTLIN_CLASS">My</info>?.<info textAttributesKey="KOTLIN_FUNCTION_DECLARATION">foo</info>(): <info textAttributesKey="KOTLIN_CLASS">Int</info> {
if (this == null || <info textAttributesKey="KOTLIN_INSTANCE_PROPERTY"><info textAttributesKey="KOTLIN_SMART_CAST_RECEIVER">x</info></info> == null) return 42
if (this == null) return 42
if (<info textAttributesKey="KOTLIN_INSTANCE_PROPERTY"><info textAttributesKey="KOTLIN_SMART_CAST_RECEIVER">x</info></info> == null) {
if (<warning textAttributesKey="WARNING_ATTRIBUTES"><info textAttributesKey="KOTLIN_INSTANCE_PROPERTY"><info textAttributesKey="KOTLIN_SMART_CONSTANT"><info textAttributesKey="KOTLIN_SMART_CAST_RECEIVER">x</info></info></info> != null</warning>) {
<warning textAttributesKey="WARNING_ATTRIBUTES">return</warning> <info textAttributesKey="KOTLIN_INSTANCE_PROPERTY"><info textAttributesKey="KOTLIN_SMART_CAST_RECEIVER"><info textAttributesKey="KOTLIN_SMART_CAST_VALUE">x</info></info></info>
}
return 13
}
return <info textAttributesKey="KOTLIN_INSTANCE_PROPERTY"><info textAttributesKey="KOTLIN_SMART_CAST_RECEIVER"><info textAttributesKey="KOTLIN_SMART_CAST_VALUE">x</info></info></info>
}