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[FIR] Add data flow analysis for FirCheckNotNullCall.

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This commit is contained in:
Mark Punzalan
2019-12-04 12:32:24 -08:00
committed by Dmitriy Novozhilov
parent 692a83f7bb
commit 6e00df06e8
9 changed files with 298 additions and 658 deletions
Download Patch File Download Diff File Expand all files Collapse all files
compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa/FirDataFlowAnalyzer.kt
+20 -4
View File
@@ -7,7 +7,10 @@ package org.jetbrains.kotlin.fir.resolve.dfa
import org.jetbrains.kotlin.fir.FirElement
import org.jetbrains.kotlin.fir.FirSymbolOwner
import org.jetbrains.kotlin.fir.contracts.description.*
import org.jetbrains.kotlin.fir.contracts.description.ConeBooleanConstantReference
import org.jetbrains.kotlin.fir.contracts.description.ConeConditionalEffectDeclaration
import org.jetbrains.kotlin.fir.contracts.description.ConeConstantReference
import org.jetbrains.kotlin.fir.contracts.description.ConeReturnsEffectDeclaration
import org.jetbrains.kotlin.fir.declarations.*
import org.jetbrains.kotlin.fir.expressions.*
import org.jetbrains.kotlin.fir.expressions.impl.FirThisReceiverExpressionImpl
@@ -24,10 +27,10 @@ import org.jetbrains.kotlin.fir.resolve.dfa.contracts.createArgumentsMapping
import org.jetbrains.kotlin.fir.resolve.transformers.body.resolve.FirAbstractBodyResolveTransformer
import org.jetbrains.kotlin.fir.resolve.transformers.body.resolve.resultType
import org.jetbrains.kotlin.fir.resolve.withNullability
import org.jetbrains.kotlin.fir.resolvedTypeFromPrototype
import org.jetbrains.kotlin.fir.symbols.AbstractFirBasedSymbol
import org.jetbrains.kotlin.fir.symbols.CallableId
import org.jetbrains.kotlin.fir.symbols.impl.FirNamedFunctionSymbol
import org.jetbrains.kotlin.fir.symbols.impl.FirVariableSymbol
import org.jetbrains.kotlin.fir.types.*
import org.jetbrains.kotlin.fir.visitors.transformSingle
import org.jetbrains.kotlin.name.FqName
@@ -143,7 +146,7 @@ class FirDataFlowAnalyzer(private val components: FirAbstractBodyResolveTransfor
if (typeOperatorCall.operation !in FirOperation.TYPES) return
val type = typeOperatorCall.conversionTypeRef.coneTypeSafe<ConeKotlinType>() ?: return
val operandVariable = getOrCreateRealVariable(typeOperatorCall.argument)?.variableUnderAlias ?: return
val operandVariable = getOrCreateRealVariable(typeOperatorCall.argument) ?: return
val flow = node.flow
when (typeOperatorCall.operation) {
@@ -339,6 +342,19 @@ class FirDataFlowAnalyzer(private val components: FirAbstractBodyResolveTransfor
graphBuilder.exitJump(jump).mergeIncomingFlow()
}
// ----------------------------------- Check not null call -----------------------------------
fun exitCheckNotNullCall(checkNotNullCall: FirCheckNotNullCall) {
// Add `Any` to the set of possible types; the intersection type `T? & Any` will be reduced to `T` after smartcast.
val node = graphBuilder.exitCheckNotNullCall(checkNotNullCall).mergeIncomingFlow()
val operandVariable = getOrCreateRealVariable(checkNotNullCall.argument) ?: return
logicSystem.addApprovedInfo(
node.flow,
operandVariable,
FirDataFlowInfo(setOf(session.builtinTypes.anyType.coneTypeUnsafe()), emptySet())
)
}
// ----------------------------------- When -----------------------------------
fun enterWhenExpression(whenExpression: FirWhenExpression) {
@@ -837,7 +853,7 @@ class FirDataFlowAnalyzer(private val components: FirAbstractBodyResolveTransfor
if (fir is FirThisReceiverExpressionImpl) {
return variableStorage.getOrCreateNewThisRealVariable(fir.calleeReference.boundSymbol ?: return null)
}
val symbol: AbstractFirBasedSymbol<*> = fir.resolvedSymbol ?: return null
val symbol = fir.resolvedSymbol as? FirVariableSymbol<*> ?: return null
return variableStorage.getOrCreateNewRealVariable(symbol).variableUnderAlias
}
compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa/cfg/ControlFlowGraph.kt
+4
View File
@@ -125,6 +125,10 @@ class OperatorCallNode(owner: ControlFlowGraph, override val fir: FirOperatorCal
class JumpNode(owner: ControlFlowGraph, override val fir: FirJump<*>, level: Int) : CFGNode<FirJump<*>>(owner, level)
class ConstExpressionNode(owner: ControlFlowGraph, override val fir: FirConstExpression<*>, level: Int) : CFGNode<FirConstExpression<*>>(owner, level)
// ----------------------------------- Check not null call -----------------------------------
class CheckNotNullCallNode(owner: ControlFlowGraph, override val fir: FirCheckNotNullCall, level: Int) : CFGNode<FirCheckNotNullCall>(owner, level)
// ----------------------------------- Resolvable call -----------------------------------
class QualifiedAccessNode(
compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa/cfg/ControlFlowGraphBuilder.kt
+6
View File
@@ -229,6 +229,12 @@ class ControlFlowGraphBuilder {
return node
}
// ----------------------------------- Check not null call -----------------------------------
fun exitCheckNotNullCall(checkNotNullCall: FirCheckNotNullCall): CheckNotNullCallNode {
return createCheckNotNullCallNode(checkNotNullCall).also { addNewSimpleNode(it) }
}
// ----------------------------------- When -----------------------------------
fun enterWhenExpression(whenExpression: FirWhenExpression): WhenEnterNode {
compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa/cfg/ControlFlowGraphNodeBuilder.kt
+3
View File
@@ -34,6 +34,9 @@ fun ControlFlowGraphBuilder.createWhenBranchConditionExitNode(fir: FirWhenBranch
fun ControlFlowGraphBuilder.createJumpNode(fir: FirJump<*>): JumpNode =
JumpNode(graph, fir, levelCounter)
fun ControlFlowGraphBuilder.createCheckNotNullCallNode(fir: FirCheckNotNullCall): CheckNotNullCallNode =
CheckNotNullCallNode(graph, fir, levelCounter)
fun ControlFlowGraphBuilder.createQualifiedAccessNode(fir: FirQualifiedAccessExpression): QualifiedAccessNode =
QualifiedAccessNode(graph, fir, levelCounter)
compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa/cfg/ControlFlowGraphRenderer.kt
+1
View File
@@ -110,6 +110,7 @@ fun CFGNode<*>.render(): String =
is TypeOperatorCallNode -> "Type operator: \"${fir.psi?.text?.toString() ?: fir.render()}\""
is JumpNode -> "Jump: ${fir.render()}"
is StubNode -> "Stub"
is CheckNotNullCallNode -> "Check not null: ${fir.render()}"
is ConstExpressionNode -> "Const: ${fir.render()}"
is VariableDeclarationNode ->
compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve/FirExpressionsResolveTransformer.kt
+1 -1
View File
@@ -308,7 +308,7 @@ class FirExpressionsResolveTransformer(transformer: FirBodyResolveTransformer) :
FirErrorTypeRefImpl(null, FirSimpleDiagnostic("Can't resolve !! operator call", DiagnosticKind.InferenceError))
checkNotNullCall
}
// TODO: Data flow analysis
dataFlowAnalyzer.exitCheckNotNullCall(result)
return result.compose()
}
compiler/fir/resolve/testData/resolve/smartcasts/bangbang.dot
Vendored
+243 -599
View File
@@ -14,55 +14,12 @@ digraph bangbang_kt {
subgraph cluster_1 {
color=red
2 [label="Enter function test_0" style="filled" fillcolor=red];
subgraph cluster_2 {
color=blue
3 [label="Enter when"];
4 [label="Access variable R|<local>/a|"];
5 [label="Variable declaration: lval <bangbang>: R|A?|"];
subgraph cluster_3 {
color=blue
6 [label="Enter when branch condition "];
7 [label="Const: Null(null)"];
8 [label="Operator =="];
9 [label="Exit when branch condition"];
}
subgraph cluster_4 {
color=blue
10 [label="Enter when branch condition else"];
11 [label="Exit when branch condition"];
}
12 [label="Enter when branch result"];
subgraph cluster_5 {
color=blue
13 [label="Enter block"];
14 [label="Access variable R|<local>/<bangbang>|"];
15 [label="Exit block"];
}
16 [label="Exit when branch result"];
17 [label="Enter when branch result"];
subgraph cluster_6 {
color=blue
18 [label="Enter block"];
19 [label="Function call: R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()"];
20 [label="Throw: throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()"];
21 [label="Stub" style="filled" fillcolor=gray];
22 [label="Exit block" style="filled" fillcolor=gray];
}
23 [label="Exit when branch result" style="filled" fillcolor=gray];
24 [label="Exit when"];
}
25 [label="Function call: when (lval <bangbang>: R|A?| = R|<local>/a|) {
==($subj$, Null(null)) -> {
throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
else -> {
R|<local>/<bangbang>|
}
}
.R|/A.foo|()"];
26 [label="Access variable R|<local>/a|"];
27 [label="Function call: R|<local>/a|.R|/A.foo|()"];
28 [label="Exit function test_0" style="filled" fillcolor=red];
3 [label="Access variable R|<local>/a|"];
4 [label="Check not null: R|<local>/a|!!"];
5 [label="Function call: R|<local>/a|!!.R|/A.foo|()"];
6 [label="Access variable R|<local>/a|"];
7 [label="Function call: R|<local>/a|.R|/A.foo|()"];
8 [label="Exit function test_0" style="filled" fillcolor=red];
}
2 -> {3};
@@ -71,643 +28,330 @@ digraph bangbang_kt {
5 -> {6};
6 -> {7};
7 -> {8};
8 -> {9};
9 -> {17 10};
subgraph cluster_2 {
color=red
9 [label="Enter function test_1" style="filled" fillcolor=red];
subgraph cluster_3 {
color=blue
10 [label="Enter when"];
subgraph cluster_4 {
color=blue
11 [label="Enter when branch condition "];
12 [label="Access variable R|<local>/a|"];
13 [label="Check not null: R|<local>/a|!!"];
14 [label="Function call: R|<local>/a|!!.R|/A.foo|()"];
15 [label="Exit when branch condition"];
}
16 [label="Synthetic else branch"];
17 [label="Enter when branch result"];
subgraph cluster_5 {
color=blue
18 [label="Enter block"];
19 [label="Access variable R|<local>/a|"];
20 [label="Function call: R|<local>/a|.R|/A.foo|()"];
21 [label="Exit block"];
}
22 [label="Exit when branch result"];
23 [label="Exit when"];
}
24 [label="Access variable R|<local>/a|"];
25 [label="Function call: R|<local>/a|.R|/A.foo|()"];
26 [label="Exit function test_1" style="filled" fillcolor=red];
}
9 -> {10};
10 -> {11};
11 -> {12};
12 -> {13};
13 -> {14};
14 -> {15};
15 -> {16};
16 -> {24};
15 -> {17 16};
16 -> {23};
17 -> {18};
18 -> {19};
19 -> {20};
20 -> {28};
20 -> {21} [style=dotted];
21 -> {22} [style=dotted];
22 -> {23} [style=dotted];
23 -> {24} [style=dotted];
20 -> {21};
21 -> {22};
22 -> {23};
23 -> {24};
24 -> {25};
25 -> {26};
26 -> {27};
27 -> {28};
subgraph cluster_7 {
subgraph cluster_6 {
color=red
29 [label="Enter function test_1" style="filled" fillcolor=red];
subgraph cluster_8 {
27 [label="Enter function test_2" style="filled" fillcolor=red];
subgraph cluster_7 {
color=blue
30 [label="Enter when"];
subgraph cluster_9 {
28 [label="Enter when"];
subgraph cluster_8 {
color=blue
31 [label="Enter when branch condition "];
subgraph cluster_10 {
29 [label="Enter when branch condition "];
subgraph cluster_9 {
color=blue
32 [label="Enter when"];
33 [label="Access variable R|<local>/a|"];
34 [label="Variable declaration: lval <bangbang>: R|A?|"];
subgraph cluster_11 {
color=blue
35 [label="Enter when branch condition "];
36 [label="Const: Null(null)"];
37 [label="Operator =="];
38 [label="Exit when branch condition"];
}
subgraph cluster_12 {
color=blue
39 [label="Enter when branch condition else"];
40 [label="Exit when branch condition"];
}
41 [label="Enter when branch result"];
subgraph cluster_13 {
color=blue
42 [label="Enter block"];
43 [label="Access variable R|<local>/<bangbang>|"];
44 [label="Exit block"];
}
45 [label="Exit when branch result"];
46 [label="Enter when branch result"];
subgraph cluster_14 {
color=blue
47 [label="Enter block"];
48 [label="Function call: R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()"];
49 [label="Throw: throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()"];
50 [label="Stub" style="filled" fillcolor=gray];
51 [label="Exit block" style="filled" fillcolor=gray];
}
52 [label="Exit when branch result" style="filled" fillcolor=gray];
53 [label="Exit when"];
30 [label="Enter &&"];
31 [label="Access variable R|<local>/a|"];
32 [label="Check not null: R|<local>/a|!!"];
33 [label="Function call: R|<local>/a|!!.R|/A.foo|()"];
34 [label="Exit left part of &&"];
35 [label="Enter right part of &&"];
36 [label="Access variable R|<local>/b|"];
37 [label="Exit &&"];
}
54 [label="Function call: when (lval <bangbang>: R|A?| = R|<local>/a|) {
==($subj$, Null(null)) -> {
throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
else -> {
R|<local>/<bangbang>|
}
}
.R|/A.foo|()"];
55 [label="Exit when branch condition"];
38 [label="Exit when branch condition"];
}
56 [label="Synthetic else branch"];
57 [label="Enter when branch result"];
subgraph cluster_15 {
39 [label="Synthetic else branch"];
40 [label="Enter when branch result"];
subgraph cluster_10 {
color=blue
58 [label="Enter block"];
59 [label="Access variable R|<local>/a|"];
60 [label="Function call: R|<local>/a|.R|/A.foo|()"];
61 [label="Exit block"];
41 [label="Enter block"];
42 [label="Access variable R|<local>/a|"];
43 [label="Function call: R|<local>/a|.R|/A.foo|()"];
44 [label="Exit block"];
}
62 [label="Exit when branch result"];
63 [label="Exit when"];
45 [label="Exit when branch result"];
46 [label="Exit when"];
}
64 [label="Access variable R|<local>/a|"];
65 [label="Function call: R|<local>/a|.R|/A.foo|()"];
66 [label="Exit function test_1" style="filled" fillcolor=red];
47 [label="Access variable R|<local>/a|"];
48 [label="Function call: R|<local>/a|.R|/A.foo|()"];
49 [label="Exit function test_2" style="filled" fillcolor=red];
}
27 -> {28};
28 -> {29};
29 -> {30};
30 -> {31};
31 -> {32};
32 -> {33};
33 -> {34};
34 -> {35};
34 -> {37 35};
35 -> {36};
36 -> {37};
37 -> {38};
38 -> {46 39};
39 -> {40};
38 -> {40 39};
39 -> {46};
40 -> {41};
41 -> {42};
42 -> {43};
43 -> {44};
44 -> {45};
45 -> {53};
45 -> {46};
46 -> {47};
47 -> {48};
48 -> {49};
49 -> {66};
49 -> {50} [style=dotted];
50 -> {51} [style=dotted];
51 -> {52} [style=dotted];
52 -> {53} [style=dotted];
subgraph cluster_11 {
color=red
50 [label="Enter function test_3" style="filled" fillcolor=red];
subgraph cluster_12 {
color=blue
51 [label="Enter when"];
subgraph cluster_13 {
color=blue
52 [label="Enter when branch condition "];
subgraph cluster_14 {
color=blue
53 [label="Enter &&"];
54 [label="Access variable R|<local>/b|"];
55 [label="Exit left part of &&"];
56 [label="Enter right part of &&"];
57 [label="Access variable R|<local>/a|"];
58 [label="Check not null: R|<local>/a|!!"];
59 [label="Function call: R|<local>/a|!!.R|/A.foo|()"];
60 [label="Exit &&"];
}
61 [label="Exit when branch condition"];
}
62 [label="Synthetic else branch"];
63 [label="Enter when branch result"];
subgraph cluster_15 {
color=blue
64 [label="Enter block"];
65 [label="Access variable R|<local>/a|"];
66 [label="Function call: R|<local>/a|.R|/A.foo|()"];
67 [label="Exit block"];
}
68 [label="Exit when branch result"];
69 [label="Exit when"];
}
70 [label="Access variable R|<local>/a|"];
71 [label="Function call: R|<local>/a|.<Inapplicable(WRONG_RECEIVER): [/A.foo]>#()"];
72 [label="Exit function test_3" style="filled" fillcolor=red];
}
50 -> {51};
51 -> {52};
52 -> {53};
53 -> {54};
54 -> {55};
55 -> {57 56};
56 -> {63};
55 -> {60 56};
56 -> {57};
57 -> {58};
58 -> {59};
59 -> {60};
60 -> {61};
61 -> {62};
62 -> {63};
61 -> {63 62};
62 -> {69};
63 -> {64};
64 -> {65};
65 -> {66};
subgraph cluster_16 {
color=red
67 [label="Enter function test_2" style="filled" fillcolor=red];
subgraph cluster_17 {
color=blue
68 [label="Enter when"];
subgraph cluster_18 {
color=blue
69 [label="Enter when branch condition "];
subgraph cluster_19 {
color=blue
70 [label="Enter &&"];
subgraph cluster_20 {
color=blue
71 [label="Enter when"];
72 [label="Access variable R|<local>/a|"];
73 [label="Variable declaration: lval <bangbang>: R|A?|"];
subgraph cluster_21 {
color=blue
74 [label="Enter when branch condition "];
75 [label="Const: Null(null)"];
76 [label="Operator =="];
77 [label="Exit when branch condition"];
}
subgraph cluster_22 {
color=blue
78 [label="Enter when branch condition else"];
79 [label="Exit when branch condition"];
}
80 [label="Enter when branch result"];
subgraph cluster_23 {
color=blue
81 [label="Enter block"];
82 [label="Access variable R|<local>/<bangbang>|"];
83 [label="Exit block"];
}
84 [label="Exit when branch result"];
85 [label="Enter when branch result"];
subgraph cluster_24 {
color=blue
86 [label="Enter block"];
87 [label="Function call: R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()"];
88 [label="Throw: throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()"];
89 [label="Stub" style="filled" fillcolor=gray];
90 [label="Exit block" style="filled" fillcolor=gray];
}
91 [label="Exit when branch result" style="filled" fillcolor=gray];
92 [label="Exit when"];
}
93 [label="Function call: when (lval <bangbang>: R|A?| = R|<local>/a|) {
==($subj$, Null(null)) -> {
throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
else -> {
R|<local>/<bangbang>|
}
}
.R|/A.foo|()"];
94 [label="Exit left part of &&"];
95 [label="Enter right part of &&"];
96 [label="Access variable R|<local>/b|"];
97 [label="Exit &&"];
}
98 [label="Exit when branch condition"];
}
99 [label="Synthetic else branch"];
100 [label="Enter when branch result"];
subgraph cluster_25 {
color=blue
101 [label="Enter block"];
102 [label="Access variable R|<local>/a|"];
103 [label="Function call: R|<local>/a|.R|/A.foo|()"];
104 [label="Exit block"];
}
105 [label="Exit when branch result"];
106 [label="Exit when"];
}
107 [label="Access variable R|<local>/a|"];
108 [label="Function call: R|<local>/a|.R|/A.foo|()"];
109 [label="Exit function test_2" style="filled" fillcolor=red];
}
66 -> {67};
67 -> {68};
68 -> {69};
69 -> {70};
70 -> {71};
71 -> {72};
72 -> {73};
subgraph cluster_16 {
color=red
73 [label="Enter function test_4" style="filled" fillcolor=red];
subgraph cluster_17 {
color=blue
74 [label="Enter when"];
subgraph cluster_18 {
color=blue
75 [label="Enter when branch condition "];
subgraph cluster_19 {
color=blue
76 [label="Enter ||"];
77 [label="Access variable R|<local>/a|"];
78 [label="Check not null: R|<local>/a|!!"];
79 [label="Function call: R|<local>/a|!!.R|/A.foo|()"];
80 [label="Exit left part of ||"];
81 [label="Enter right part of ||"];
82 [label="Access variable R|<local>/b|"];
83 [label="Exit ||"];
}
84 [label="Exit when branch condition"];
}
85 [label="Synthetic else branch"];
86 [label="Enter when branch result"];
subgraph cluster_20 {
color=blue
87 [label="Enter block"];
88 [label="Access variable R|<local>/a|"];
89 [label="Function call: R|<local>/a|.R|/A.foo|()"];
90 [label="Exit block"];
}
91 [label="Exit when branch result"];
92 [label="Exit when"];
}
93 [label="Access variable R|<local>/a|"];
94 [label="Function call: R|<local>/a|.R|/A.foo|()"];
95 [label="Exit function test_4" style="filled" fillcolor=red];
}
73 -> {74};
74 -> {75};
75 -> {76};
76 -> {77};
77 -> {85 78};
77 -> {78};
78 -> {79};
79 -> {80};
80 -> {81};
80 -> {83 81};
81 -> {82};
82 -> {83};
83 -> {84};
84 -> {92};
85 -> {86};
84 -> {86 85};
85 -> {92};
86 -> {87};
87 -> {88};
88 -> {109};
88 -> {89} [style=dotted];
89 -> {90} [style=dotted];
90 -> {91} [style=dotted];
91 -> {92} [style=dotted];
88 -> {89};
89 -> {90};
90 -> {91};
91 -> {92};
92 -> {93};
93 -> {94};
94 -> {97 95};
95 -> {96};
94 -> {95};
subgraph cluster_21 {
color=red
96 [label="Enter function test_5" style="filled" fillcolor=red];
subgraph cluster_22 {
color=blue
97 [label="Enter when"];
subgraph cluster_23 {
color=blue
98 [label="Enter when branch condition "];
subgraph cluster_24 {
color=blue
99 [label="Enter ||"];
100 [label="Access variable R|<local>/b|"];
101 [label="Exit left part of ||"];
102 [label="Enter right part of ||"];
103 [label="Access variable R|<local>/a|"];
104 [label="Check not null: R|<local>/a|!!"];
105 [label="Function call: R|<local>/a|!!.R|/A.foo|()"];
106 [label="Exit ||"];
}
107 [label="Exit when branch condition"];
}
108 [label="Synthetic else branch"];
109 [label="Enter when branch result"];
subgraph cluster_25 {
color=blue
110 [label="Enter block"];
111 [label="Access variable R|<local>/a|"];
112 [label="Function call: R|<local>/a|.<Inapplicable(WRONG_RECEIVER): [/A.foo]>#()"];
113 [label="Exit block"];
}
114 [label="Exit when branch result"];
115 [label="Exit when"];
}
116 [label="Access variable R|<local>/a|"];
117 [label="Function call: R|<local>/a|.<Inapplicable(WRONG_RECEIVER): [/A.foo]>#()"];
118 [label="Exit function test_5" style="filled" fillcolor=red];
}
96 -> {97};
97 -> {98};
98 -> {100 99};
99 -> {106};
98 -> {99};
99 -> {100};
100 -> {101};
101 -> {102};
101 -> {106 102};
102 -> {103};
103 -> {104};
104 -> {105};
105 -> {106};
106 -> {107};
107 -> {108};
108 -> {109};
subgraph cluster_26 {
color=red
110 [label="Enter function test_3" style="filled" fillcolor=red];
subgraph cluster_27 {
color=blue
111 [label="Enter when"];
subgraph cluster_28 {
color=blue
112 [label="Enter when branch condition "];
subgraph cluster_29 {
color=blue
113 [label="Enter &&"];
114 [label="Access variable R|<local>/b|"];
115 [label="Exit left part of &&"];
116 [label="Enter right part of &&"];
subgraph cluster_30 {
color=blue
117 [label="Enter when"];
118 [label="Access variable R|<local>/a|"];
119 [label="Variable declaration: lval <bangbang>: R|A?|"];
subgraph cluster_31 {
color=blue
120 [label="Enter when branch condition "];
121 [label="Const: Null(null)"];
122 [label="Operator =="];
123 [label="Exit when branch condition"];
}
subgraph cluster_32 {
color=blue
124 [label="Enter when branch condition else"];
125 [label="Exit when branch condition"];
}
126 [label="Enter when branch result"];
subgraph cluster_33 {
color=blue
127 [label="Enter block"];
128 [label="Access variable R|<local>/<bangbang>|"];
129 [label="Exit block"];
}
130 [label="Exit when branch result"];
131 [label="Enter when branch result"];
subgraph cluster_34 {
color=blue
132 [label="Enter block"];
133 [label="Function call: R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()"];
134 [label="Throw: throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()"];
135 [label="Stub" style="filled" fillcolor=gray];
136 [label="Exit block" style="filled" fillcolor=gray];
}
137 [label="Exit when branch result" style="filled" fillcolor=gray];
138 [label="Exit when"];
}
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throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
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.R|/A.foo|()"];
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subgraph cluster_27 {
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subgraph cluster_36 {
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153 [label="Enter function test_4" style="filled" fillcolor=red];
subgraph cluster_37 {
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subgraph cluster_38 {
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155 [label="Enter when branch condition "];
subgraph cluster_39 {
color=blue
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subgraph cluster_40 {
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subgraph cluster_41 {
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subgraph cluster_43 {
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subgraph cluster_44 {
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throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
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.R|/A.foo|()"];
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.R|/A.foo|()"];
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}
compiler/fir/resolve/testData/resolve/smartcasts/bangbang.kt
Vendored
+8
View File
@@ -40,4 +40,12 @@ fun test_5(a: A?, b: Boolean) {
a.<!INAPPLICABLE_CANDIDATE!>foo<!>()
}
a.<!INAPPLICABLE_CANDIDATE!>foo<!>()
}
fun <X : A?> test_6(x: X) {
x!!.foo()
}
fun <X : A> test_7(x: X?) {
x!!.foo()
}
compiler/fir/resolve/testData/resolve/smartcasts/bangbang.txt
Vendored
+12 -54
View File
@@ -4,28 +4,12 @@ FILE: bangbang.kt
}
public final fun test_0(a: R|A?|): R|kotlin/Unit| {
when (lval <bangbang>: R|A?| = R|<local>/a|) {
==($subj$, Null(null)) -> {
throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
else -> {
R|<local>/<bangbang>|
}
}
.R|/A.foo|()
R|<local>/a|!!.R|/A.foo|()
R|<local>/a|.R|/A.foo|()
}
public final fun test_1(a: R|A?|): R|kotlin/Unit| {
when () {
when (lval <bangbang>: R|A?| = R|<local>/a|) {
==($subj$, Null(null)) -> {
throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
else -> {
R|<local>/<bangbang>|
}
}
.R|/A.foo|() -> {
R|<local>/a|!!.R|/A.foo|() -> {
R|<local>/a|.R|/A.foo|()
}
}
@@ -34,15 +18,7 @@ FILE: bangbang.kt
}
public final fun test_2(a: R|A?|, b: R|kotlin/Boolean|): R|kotlin/Unit| {
when () {
when (lval <bangbang>: R|A?| = R|<local>/a|) {
==($subj$, Null(null)) -> {
throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
else -> {
R|<local>/<bangbang>|
}
}
.R|/A.foo|() && R|<local>/b| -> {
R|<local>/a|!!.R|/A.foo|() && R|<local>/b| -> {
R|<local>/a|.R|/A.foo|()
}
}
@@ -51,15 +27,7 @@ FILE: bangbang.kt
}
public final fun test_3(a: R|A?|, b: R|kotlin/Boolean|): R|kotlin/Unit| {
when () {
R|<local>/b| && when (lval <bangbang>: R|A?| = R|<local>/a|) {
==($subj$, Null(null)) -> {
throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
else -> {
R|<local>/<bangbang>|
}
}
.R|/A.foo|() -> {
R|<local>/b| && R|<local>/a|!!.R|/A.foo|() -> {
R|<local>/a|.R|/A.foo|()
}
}
@@ -68,15 +36,7 @@ FILE: bangbang.kt
}
public final fun test_4(a: R|A?|, b: R|kotlin/Boolean|): R|kotlin/Unit| {
when () {
when (lval <bangbang>: R|A?| = R|<local>/a|) {
==($subj$, Null(null)) -> {
throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
else -> {
R|<local>/<bangbang>|
}
}
.R|/A.foo|() || R|<local>/b| -> {
R|<local>/a|!!.R|/A.foo|() || R|<local>/b| -> {
R|<local>/a|.R|/A.foo|()
}
}
@@ -85,18 +45,16 @@ FILE: bangbang.kt
}
public final fun test_5(a: R|A?|, b: R|kotlin/Boolean|): R|kotlin/Unit| {
when () {
R|<local>/b| || when (lval <bangbang>: R|A?| = R|<local>/a|) {
==($subj$, Null(null)) -> {
throw R|kotlin/KotlinNullPointerException.KotlinNullPointerException|()
}
else -> {
R|<local>/<bangbang>|
}
}
.R|/A.foo|() -> {
R|<local>/b| || R|<local>/a|!!.R|/A.foo|() -> {
R|<local>/a|.<Inapplicable(WRONG_RECEIVER): [/A.foo]>#()
}
}
R|<local>/a|.<Inapplicable(WRONG_RECEIVER): [/A.foo]>#()
}
public final fun <X : R|A?|> test_6(x: R|X|): R|kotlin/Unit| {
R|<local>/x|!!.R|/A.foo|()
}
public final fun <X : R|A|> test_7(x: R|X?|): R|kotlin/Unit| {
R|<local>/x|!!.R|/A.foo|()
}