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[FIR] Add empty range checker

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This commit is contained in:
vldf
2020-07-28 16:21:49 +03:00
committed by Mikhail Glukhikh
parent b10defdbab
commit 8724efbe8a
8 changed files with 214 additions and 1 deletions
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compiler/fir/analysis-tests/testData/extendedCheckers/emptyRangeChecker/NoWarning.kt
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// WITH_RUNTIME
fun foo() {
for (i in 1..2) { }
val a = 3..4
val v = 1
if (v in 5..6) { }
}
fun backward() {
for (i in 2 downTo 1) { }
val a = 4 downTo 3
val v = 1
if (v in -5 downTo -6) { }
}
fun until() {
for (i in 1 until 2) { }
val a = 3 until 4
val v = 1
if (v in -5 until -4) { }
}
compiler/fir/analysis-tests/testData/extendedCheckers/emptyRangeChecker/NoWarning.txt
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+43
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FILE: NoWarning.kt
public final fun foo(): R|kotlin/Unit| {
lval <iterator>: R|kotlin/collections/IntIterator| = Int(1).R|kotlin/Int.rangeTo|(Int(2)).R|kotlin/ranges/IntProgression.iterator|()
while(R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()) {
lval i: R|kotlin/Int| = R|<local>/<iterator>|.R|kotlin/collections/IntIterator.next|()
}
lval a: R|kotlin/ranges/IntRange| = Int(3).R|kotlin/Int.rangeTo|(Int(4))
lval v: R|kotlin/Int| = Int(1)
when () {
Int(5).R|kotlin/Int.rangeTo|(Int(6)).R|kotlin/ranges/IntRange.contains|(R|<local>/v|) -> {
}
}
}
public final fun backward(): R|kotlin/Unit| {
lval <iterator>: R|kotlin/collections/IntIterator| = Int(2).R|kotlin/ranges/downTo|(Int(1)).R|kotlin/ranges/IntProgression.iterator|()
while(R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()) {
lval i: R|kotlin/Int| = R|<local>/<iterator>|.R|kotlin/collections/IntIterator.next|()
}
lval a: R|kotlin/ranges/IntProgression| = Int(4).R|kotlin/ranges/downTo|(Int(3))
lval v: R|kotlin/Int| = Int(1)
when () {
Int(5).R|kotlin/Int.unaryMinus|().R|kotlin/ranges/downTo|(Int(6).R|kotlin/Int.unaryMinus|()).R|kotlin/collections/contains|<R|kotlin/Int|>(R|<local>/v|) -> {
}
}
}
public final fun until(): R|kotlin/Unit| {
lval <iterator>: R|kotlin/collections/IntIterator| = Int(1).R|kotlin/ranges/until|(Int(2)).R|kotlin/ranges/IntProgression.iterator|()
while(R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()) {
lval i: R|kotlin/Int| = R|<local>/<iterator>|.R|kotlin/collections/IntIterator.next|()
}
lval a: R|kotlin/ranges/IntRange| = Int(3).R|kotlin/ranges/until|(Int(4))
lval v: R|kotlin/Int| = Int(1)
when () {
Int(5).R|kotlin/Int.unaryMinus|().R|kotlin/ranges/until|(Int(4).R|kotlin/Int.unaryMinus|()).R|kotlin/ranges/IntRange.contains|(R|<local>/v|) -> {
}
}
}
compiler/fir/analysis-tests/testData/extendedCheckers/emptyRangeChecker/Warning.kt
Vendored
+28
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// WITH_RUNTIME
fun foo() {
for (i in <!EMPTY_RANGE!>2..1<!>) { }
val a = <!EMPTY_RANGE!>10..0<!>
val v = 1
if (v in <!EMPTY_RANGE!>10..1<!>) { }
}
fun backward() {
for (i in <!EMPTY_RANGE!>1 downTo 2<!>) { }
val a = <!EMPTY_RANGE!>-3 downTo 4<!>
val v = 1
if (v in <!EMPTY_RANGE!>0 downTo 6<!>) { }
}
fun until() {
for (i in <!EMPTY_RANGE!>1 until 1<!>) { }
val a = <!EMPTY_RANGE!>4 until 3<!>
val v = 1
if (v in <!EMPTY_RANGE!>-5 until -5<!>) { }
}
compiler/fir/analysis-tests/testData/extendedCheckers/emptyRangeChecker/Warning.txt
Vendored
+43
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@@ -0,0 +1,43 @@
FILE: Warning.kt
public final fun foo(): R|kotlin/Unit| {
lval <iterator>: R|kotlin/collections/IntIterator| = Int(2).R|kotlin/Int.rangeTo|(Int(1)).R|kotlin/ranges/IntProgression.iterator|()
while(R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()) {
lval i: R|kotlin/Int| = R|<local>/<iterator>|.R|kotlin/collections/IntIterator.next|()
}
lval a: R|kotlin/ranges/IntRange| = Int(10).R|kotlin/Int.rangeTo|(Int(0))
lval v: R|kotlin/Int| = Int(1)
when () {
Int(10).R|kotlin/Int.rangeTo|(Int(1)).R|kotlin/ranges/IntRange.contains|(R|<local>/v|) -> {
}
}
}
public final fun backward(): R|kotlin/Unit| {
lval <iterator>: R|kotlin/collections/IntIterator| = Int(1).R|kotlin/ranges/downTo|(Int(2)).R|kotlin/ranges/IntProgression.iterator|()
while(R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()) {
lval i: R|kotlin/Int| = R|<local>/<iterator>|.R|kotlin/collections/IntIterator.next|()
}
lval a: R|kotlin/ranges/IntProgression| = Int(3).R|kotlin/Int.unaryMinus|().R|kotlin/ranges/downTo|(Int(4))
lval v: R|kotlin/Int| = Int(1)
when () {
Int(0).R|kotlin/ranges/downTo|(Int(6)).R|kotlin/collections/contains|<R|kotlin/Int|>(R|<local>/v|) -> {
}
}
}
public final fun until(): R|kotlin/Unit| {
lval <iterator>: R|kotlin/collections/IntIterator| = Int(1).R|kotlin/ranges/until|(Int(1)).R|kotlin/ranges/IntProgression.iterator|()
while(R|<local>/<iterator>|.R|kotlin/collections/Iterator.hasNext|()) {
lval i: R|kotlin/Int| = R|<local>/<iterator>|.R|kotlin/collections/IntIterator.next|()
}
lval a: R|kotlin/ranges/IntRange| = Int(4).R|kotlin/ranges/until|(Int(3))
lval v: R|kotlin/Int| = Int(1)
when () {
Int(5).R|kotlin/Int.unaryMinus|().R|kotlin/ranges/until|(Int(5).R|kotlin/Int.unaryMinus|()).R|kotlin/ranges/IntRange.contains|(R|<local>/v|) -> {
}
}
}