PSI2IR more JVM-like exhaustive when behavior KT-36840

This commit is contained in:
Dmitry Petrov
2020-10-21 16:21:46 +03:00
parent 7edeccbdc7
commit b1b87becc8
11 changed files with 652 additions and 20 deletions
@@ -4748,6 +4748,11 @@ public class FirBytecodeTextTestGenerated extends AbstractFirBytecodeTextTest {
runTest("compiler/testData/codegen/bytecodeText/when/exhaustiveWhenReturn.kt");
}
@TestMetadata("exhaustiveWhenSpecialCases.kt")
public void testExhaustiveWhenSpecialCases() throws Exception {
runTest("compiler/testData/codegen/bytecodeText/when/exhaustiveWhenSpecialCases.kt");
}
@TestMetadata("exhaustiveWhenUnit.kt")
public void testExhaustiveWhenUnit() throws Exception {
runTest("compiler/testData/codegen/bytecodeText/when/exhaustiveWhenUnit.kt");
@@ -917,6 +917,11 @@ public class Fir2IrTextTestGenerated extends AbstractFir2IrTextTest {
runTest("compiler/testData/ir/irText/expressions/equals.kt");
}
@TestMetadata("exhaustiveWhenElseBranch.kt")
public void testExhaustiveWhenElseBranch() throws Exception {
runTest("compiler/testData/ir/irText/expressions/exhaustiveWhenElseBranch.kt");
}
@TestMetadata("extFunInvokeAsFun.kt")
public void testExtFunInvokeAsFun() throws Exception {
runTest("compiler/testData/ir/irText/expressions/extFunInvokeAsFun.kt");
@@ -102,10 +102,12 @@ class BranchingExpressionGenerator(statementGenerator: StatementGenerator) : Sta
getExpressionTypeWithCoercionToUnitOrFail(expression).toIrType(), IrStatementOrigin.WHEN
)
var hasExplicitElseBranch = false
for (ktEntry in expression.entries) {
if (ktEntry.isElse) {
val irElseResult = ktEntry.expression!!.genExpr()
irWhen.branches.add(elseBranch(irElseResult))
hasExplicitElseBranch = true
break
}
@@ -122,7 +124,9 @@ class BranchingExpressionGenerator(statementGenerator: StatementGenerator) : Sta
val irBranchResult = ktEntry.expression!!.genExpr()
irWhen.branches.add(IrBranchImpl(irBranchCondition!!, irBranchResult))
}
addElseBranchForExhaustiveWhenIfNeeded(irWhen, expression)
if (!hasExplicitElseBranch) {
addElseBranchForExhaustiveWhenIfNeeded(irWhen, expression)
}
return generateWhenBody(expression, irSubject, irWhen)
}
@@ -138,26 +142,22 @@ class BranchingExpressionGenerator(statementGenerator: StatementGenerator) : Sta
}
private fun addElseBranchForExhaustiveWhenIfNeeded(irWhen: IrWhen, whenExpression: KtWhenExpression) {
if (irWhen.branches.filterIsInstance<IrElseBranch>().isEmpty()) {
//TODO: check condition: seems it's safe to always generate exception
val isExhaustive = whenExpression.isExhaustiveWhen()
if (isExhaustive) {
val call = IrCallImpl.fromSymbolDescriptor(
UNDEFINED_OFFSET, UNDEFINED_OFFSET,
context.irBuiltIns.nothingType,
context.irBuiltIns.noWhenBranchMatchedExceptionSymbol
)
irWhen.branches.add(elseBranch(call))
}
val isUsedAsExpression = true == get(BindingContext.USED_AS_EXPRESSION, whenExpression)
val isImplicitElseRequired =
if (isUsedAsExpression)
true == get(BindingContext.EXHAUSTIVE_WHEN, whenExpression)
else
true == get(BindingContext.IMPLICIT_EXHAUSTIVE_WHEN, whenExpression)
if (isImplicitElseRequired) {
val call = IrCallImpl.fromSymbolDescriptor(
UNDEFINED_OFFSET, UNDEFINED_OFFSET,
context.irBuiltIns.nothingType,
context.irBuiltIns.noWhenBranchMatchedExceptionSymbol
)
irWhen.branches.add(elseBranch(call))
}
}
private fun KtWhenExpression.isExhaustiveWhen(): Boolean =
elseExpression != null // TODO front-end should provide correct exhaustiveness information
|| true == get(BindingContext.EXHAUSTIVE_WHEN, this)
|| true == get(BindingContext.IMPLICIT_EXHAUSTIVE_WHEN, this)
private fun generateWhenBody(expression: KtWhenExpression, irSubject: IrVariable?, irWhen: IrWhen): IrExpression =
if (irSubject == null) {
if (irWhen.branches.isEmpty())
@@ -0,0 +1,91 @@
// IGNORE_BACKEND_FIR: JVM_IR
enum class A { V1 }
fun testVariableAssignment_throws(a: A) {
val x: Int
when (a) {
A.V1 -> x = 11
// else -> throw
}
}
fun testStatement_empty(a: A) {
when (a) {
A.V1 -> 1
// else -> {}
}
}
fun testParenthesized_throwsJvm(a: A) {
(when (a) {
A.V1 -> 1
// JVM: else -> throw
// JVM_IR: else -> {}
})
}
fun testAnnotated_throwsJvm(a: A) {
@Suppress("") when (a) {
A.V1 -> 1
// JVM: else -> throw
// JVM_IR: else -> {}
}
}
fun testExpression_throws(a: A) =
when (a) {
A.V1 -> 1
// else -> throw
}
fun testIfTheElseStatement_empty(a: A, flag: Boolean) {
if (flag)
0
else {
when (a) {
A.V1 -> 1
// else -> {}
}
}
}
fun testIfTheElseParenthesized_throwsJvm(a: A, flag: Boolean) {
(if (flag)
0
else {
when (a) {
A.V1 -> 1
// JVM: else -> throw
// JVM_IR: else -> {}
}
})
}
fun testIfTheElseAnnotated_throwsJvm(a: A, flag: Boolean) {
@Suppress("")
if (flag)
0
else {
when (a) {
A.V1 -> 1
// JVM: else -> throw
// JVM_IR: else -> {}
}
}
}
fun testLambdaResultExpression_throws(a: A) {
{
when (a) {
A.V1 -> 1
// else -> throw
}
}()
}
// JVM_TEMPLATES
// 7 ATHROW
// JVM_IR_TEMPLATES
// 3 ATHROW
@@ -1,6 +1,4 @@
// IGNORE_BACKEND_FIR: JVM_IR
// IGNORE_BACKEND: JVM_IR
// TODO KT-36840 Don't generate 'throw' clause for statement 'when' in JVM_IR
enum class AccessMode { READ, WRITE, EXECUTE }
@@ -0,0 +1,222 @@
FILE fqName:<root> fileName:/exhaustiveWhenElseBranch.kt
CLASS ENUM_CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Enum<<root>.A>]
$this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.A
CONSTRUCTOR visibility:private <> () returnType:<root>.A [primary]
BLOCK_BODY
ENUM_CONSTRUCTOR_CALL 'public constructor <init> (name: kotlin.String, ordinal: kotlin.Int) [primary] declared in kotlin.Enum'
<E>: <root>.A
INSTANCE_INITIALIZER_CALL classDescriptor='CLASS ENUM_CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Enum<<root>.A>]'
ENUM_ENTRY name:V1
init: EXPRESSION_BODY
ENUM_CONSTRUCTOR_CALL 'private constructor <init> () [primary] declared in <root>.A'
FUN ENUM_CLASS_SPECIAL_MEMBER name:values visibility:public modality:FINAL <> () returnType:kotlin.Array<<root>.A>
SYNTHETIC_BODY kind=ENUM_VALUES
FUN ENUM_CLASS_SPECIAL_MEMBER name:valueOf visibility:public modality:FINAL <> (value:kotlin.String) returnType:<root>.A
VALUE_PARAMETER name:value index:0 type:kotlin.String
SYNTHETIC_BODY kind=ENUM_VALUEOF
FUN FAKE_OVERRIDE name:clone visibility:protected modality:FINAL <> ($this:kotlin.Enum<E of kotlin.Enum>) returnType:kotlin.Any [fake_override]
overridden:
protected final fun clone (): kotlin.Any declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<E of kotlin.Enum>
FUN FAKE_OVERRIDE name:compareTo visibility:public modality:FINAL <> ($this:kotlin.Enum<E of kotlin.Enum>, other:<root>.A) returnType:kotlin.Int [fake_override,operator]
overridden:
public final fun compareTo (other: E of kotlin.Enum): kotlin.Int [operator] declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<E of kotlin.Enum>
VALUE_PARAMETER name:other index:0 type:<root>.A
FUN FAKE_OVERRIDE name:equals visibility:public modality:FINAL <> ($this:kotlin.Enum<E of kotlin.Enum>, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
overridden:
public final fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<E of kotlin.Enum>
VALUE_PARAMETER name:other index:0 type:kotlin.Any?
FUN FAKE_OVERRIDE name:hashCode visibility:public modality:FINAL <> ($this:kotlin.Enum<E of kotlin.Enum>) returnType:kotlin.Int [fake_override]
overridden:
public final fun hashCode (): kotlin.Int declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<E of kotlin.Enum>
FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Enum<E of kotlin.Enum>) returnType:kotlin.String [fake_override]
overridden:
public open fun toString (): kotlin.String declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<E of kotlin.Enum>
PROPERTY FAKE_OVERRIDE name:name visibility:public modality:FINAL [fake_override,val]
FUN FAKE_OVERRIDE name:<get-name> visibility:public modality:FINAL <> ($this:kotlin.Enum<E of kotlin.Enum>) returnType:kotlin.String [fake_override]
correspondingProperty: PROPERTY FAKE_OVERRIDE name:name visibility:public modality:FINAL [fake_override,val]
overridden:
public final fun <get-name> (): kotlin.String declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<E of kotlin.Enum>
PROPERTY FAKE_OVERRIDE name:ordinal visibility:public modality:FINAL [fake_override,val]
FUN FAKE_OVERRIDE name:<get-ordinal> visibility:public modality:FINAL <> ($this:kotlin.Enum<E of kotlin.Enum>) returnType:kotlin.Int [fake_override]
correspondingProperty: PROPERTY FAKE_OVERRIDE name:ordinal visibility:public modality:FINAL [fake_override,val]
overridden:
public final fun <get-ordinal> (): kotlin.Int declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<E of kotlin.Enum>
FUN name:testVariableAssignment_throws visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
VAR name:x type:kotlin.Int [val]
BLOCK type=kotlin.Unit origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testVariableAssignment_throws' type=<root>.A origin=null
WHEN type=kotlin.Unit origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_0: <root>.A [val] declared in <root>.testVariableAssignment_throws' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: BLOCK type=kotlin.Unit origin=null
SET_VAR 'val x: kotlin.Int [val] declared in <root>.testVariableAssignment_throws' type=kotlin.Unit origin=EQ
CONST Int type=kotlin.Int value=11
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testStatement_empty visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_1 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testStatement_empty' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_1: <root>.A [val] declared in <root>.testStatement_empty' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testParenthesized_throwsJvm visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_2 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testParenthesized_throwsJvm' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_2: <root>.A [val] declared in <root>.testParenthesized_throwsJvm' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testAnnotated_throwsJvm visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_3 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testAnnotated_throwsJvm' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_3: <root>.A [val] declared in <root>.testAnnotated_throwsJvm' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testExpression_throws visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Int
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
RETURN type=kotlin.Nothing from='public final fun testExpression_throws (a: <root>.A): kotlin.Int declared in <root>'
BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_4 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testExpression_throws' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_4: <root>.A [val] declared in <root>.testExpression_throws' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testIfTheElseStatement_empty visibility:public modality:FINAL <> (a:<root>.A, flag:kotlin.Boolean) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
VALUE_PARAMETER name:flag index:1 type:kotlin.Boolean
BLOCK_BODY
TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
WHEN type=kotlin.Int origin=IF
BRANCH
if: GET_VAR 'flag: kotlin.Boolean declared in <root>.testIfTheElseStatement_empty' type=kotlin.Boolean origin=null
then: CONST Int type=kotlin.Int value=0
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_5 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testIfTheElseStatement_empty' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_5: <root>.A [val] declared in <root>.testIfTheElseStatement_empty' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testIfTheElseParenthesized_throwsJvm visibility:public modality:FINAL <> (a:<root>.A, flag:kotlin.Boolean) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
VALUE_PARAMETER name:flag index:1 type:kotlin.Boolean
BLOCK_BODY
TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
WHEN type=kotlin.Int origin=IF
BRANCH
if: GET_VAR 'flag: kotlin.Boolean declared in <root>.testIfTheElseParenthesized_throwsJvm' type=kotlin.Boolean origin=null
then: CONST Int type=kotlin.Int value=0
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_6 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testIfTheElseParenthesized_throwsJvm' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_6: <root>.A [val] declared in <root>.testIfTheElseParenthesized_throwsJvm' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testIfTheElseAnnotated_throwsJvm visibility:public modality:FINAL <> (a:<root>.A, flag:kotlin.Boolean) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
VALUE_PARAMETER name:flag index:1 type:kotlin.Boolean
BLOCK_BODY
TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
WHEN type=kotlin.Int origin=IF
BRANCH
if: GET_VAR 'flag: kotlin.Boolean declared in <root>.testIfTheElseAnnotated_throwsJvm' type=kotlin.Boolean origin=null
then: CONST Int type=kotlin.Int value=0
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_7 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testIfTheElseAnnotated_throwsJvm' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_7: <root>.A [val] declared in <root>.testIfTheElseAnnotated_throwsJvm' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testLambdaResultExpression_throws visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=kotlin.Int origin=INVOKE
$this: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
BLOCK_BODY
RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Int declared in <root>.testLambdaResultExpression_throws'
BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_8 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testLambdaResultExpression_throws' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_8: <root>.A [val] declared in <root>.testLambdaResultExpression_throws.<anonymous>' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
@@ -0,0 +1,79 @@
enum class A { V1 }
fun testVariableAssignment_throws(a: A) {
val x: Int
when (a) {
A.V1 -> x = 11
// else -> throw
}
}
fun testStatement_empty(a: A) {
when (a) {
A.V1 -> 1
// else -> {}
}
}
fun testParenthesized_throwsJvm(a: A) {
(when (a) {
A.V1 -> 1
// JVM: else -> throw, but we don't care
})
}
fun testAnnotated_throwsJvm(a: A) {
@Suppress("") when (a) {
A.V1 -> 1
// JVM: else -> throw, but we don't care
}
}
fun testExpression_throws(a: A) =
when (a) {
A.V1 -> 1
// else -> throw
}
fun testIfTheElseStatement_empty(a: A, flag: Boolean) {
if (flag)
0
else {
when (a) {
A.V1 -> 1
// else -> {}
}
}
}
fun testIfTheElseParenthesized_throwsJvm(a: A, flag: Boolean) {
(if (flag)
0
else {
when (a) {
A.V1 -> 1
// JVM: else -> throw, but we don't care
}
})
}
fun testIfTheElseAnnotated_throwsJvm(a: A, flag: Boolean) {
@Suppress("")
if (flag)
0
else {
when (a) {
A.V1 -> 1
// JVM: else -> throw, but we don't care
}
}
}
fun testLambdaResultExpression_throws(a: A) {
{
when (a) {
A.V1 -> 1
// else -> throw
}
}()
}
@@ -0,0 +1,217 @@
FILE fqName:<root> fileName:/exhaustiveWhenElseBranch.kt
CLASS ENUM_CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Enum<<root>.A>]
$this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.A
CONSTRUCTOR visibility:private <> () returnType:<root>.A [primary]
BLOCK_BODY
ENUM_CONSTRUCTOR_CALL 'public constructor <init> (name: kotlin.String, ordinal: kotlin.Int) [primary] declared in kotlin.Enum'
<E>: <root>.A
INSTANCE_INITIALIZER_CALL classDescriptor='CLASS ENUM_CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Enum<<root>.A>]'
ENUM_ENTRY name:V1
init: EXPRESSION_BODY
ENUM_CONSTRUCTOR_CALL 'private constructor <init> () [primary] declared in <root>.A'
FUN FAKE_OVERRIDE name:clone visibility:protected modality:FINAL <> ($this:kotlin.Enum<<root>.A>) returnType:kotlin.Any [fake_override]
overridden:
protected final fun clone (): kotlin.Any declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.A>
FUN FAKE_OVERRIDE name:finalize visibility:protected/*protected and package*/ modality:FINAL <> ($this:kotlin.Enum<<root>.A>) returnType:kotlin.Unit [fake_override]
overridden:
protected/*protected and package*/ final fun finalize (): kotlin.Unit declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.A>
FUN FAKE_OVERRIDE name:getDeclaringClass visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.A>) returnType:@[FlexibleNullability] java.lang.Class<@[FlexibleNullability] <root>.A?>? [fake_override]
overridden:
public final fun getDeclaringClass (): @[FlexibleNullability] java.lang.Class<@[FlexibleNullability] E of kotlin.Enum?>? declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.A>
FUN FAKE_OVERRIDE name:compareTo visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.A>, other:<root>.A) returnType:kotlin.Int [fake_override,operator]
overridden:
public final fun compareTo (other: E of kotlin.Enum): kotlin.Int [operator] declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.A>
VALUE_PARAMETER name:other index:0 type:<root>.A
FUN FAKE_OVERRIDE name:equals visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.A>, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
overridden:
public final fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.A>
VALUE_PARAMETER name:other index:0 type:kotlin.Any?
FUN FAKE_OVERRIDE name:hashCode visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.A>) returnType:kotlin.Int [fake_override]
overridden:
public final fun hashCode (): kotlin.Int declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.A>
PROPERTY FAKE_OVERRIDE name:name visibility:public modality:FINAL [fake_override,val]
FUN FAKE_OVERRIDE name:<get-name> visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.A>) returnType:kotlin.String [fake_override]
correspondingProperty: PROPERTY FAKE_OVERRIDE name:name visibility:public modality:FINAL [fake_override,val]
overridden:
public final fun <get-name> (): kotlin.String declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.A>
PROPERTY FAKE_OVERRIDE name:ordinal visibility:public modality:FINAL [fake_override,val]
FUN FAKE_OVERRIDE name:<get-ordinal> visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.A>) returnType:kotlin.Int [fake_override]
correspondingProperty: PROPERTY FAKE_OVERRIDE name:ordinal visibility:public modality:FINAL [fake_override,val]
overridden:
public final fun <get-ordinal> (): kotlin.Int declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.A>
FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Enum<<root>.A>) returnType:kotlin.String [fake_override]
overridden:
public open fun toString (): kotlin.String declared in kotlin.Enum
$this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.A>
FUN ENUM_CLASS_SPECIAL_MEMBER name:values visibility:public modality:FINAL <> () returnType:kotlin.Array<<root>.A>
SYNTHETIC_BODY kind=ENUM_VALUES
FUN ENUM_CLASS_SPECIAL_MEMBER name:valueOf visibility:public modality:FINAL <> (value:kotlin.String) returnType:<root>.A
VALUE_PARAMETER name:value index:0 type:kotlin.String
SYNTHETIC_BODY kind=ENUM_VALUEOF
FUN name:testVariableAssignment_throws visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
VAR name:x type:kotlin.Int [val]
BLOCK type=kotlin.Unit origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testVariableAssignment_throws' type=<root>.A origin=null
WHEN type=kotlin.Unit origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_0: <root>.A [val] declared in <root>.testVariableAssignment_throws' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: SET_VAR 'val x: kotlin.Int [val] declared in <root>.testVariableAssignment_throws' type=kotlin.Unit origin=EQ
CONST Int type=kotlin.Int value=11
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testStatement_empty visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
BLOCK type=kotlin.Unit origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_1 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testStatement_empty' type=<root>.A origin=null
WHEN type=kotlin.Unit origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_1: <root>.A [val] declared in <root>.testStatement_empty' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CONST Int type=kotlin.Int value=1
FUN name:testParenthesized_throwsJvm visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
BLOCK type=kotlin.Unit origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_2 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testParenthesized_throwsJvm' type=<root>.A origin=null
WHEN type=kotlin.Unit origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_2: <root>.A [val] declared in <root>.testParenthesized_throwsJvm' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CONST Int type=kotlin.Int value=1
FUN name:testAnnotated_throwsJvm visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
BLOCK type=kotlin.Unit origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_3 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testAnnotated_throwsJvm' type=<root>.A origin=null
WHEN type=kotlin.Unit origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_3: <root>.A [val] declared in <root>.testAnnotated_throwsJvm' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CONST Int type=kotlin.Int value=1
FUN name:testExpression_throws visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Int
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
RETURN type=kotlin.Nothing from='public final fun testExpression_throws (a: <root>.A): kotlin.Int declared in <root>'
BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_4 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testExpression_throws' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_4: <root>.A [val] declared in <root>.testExpression_throws' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
FUN name:testIfTheElseStatement_empty visibility:public modality:FINAL <> (a:<root>.A, flag:kotlin.Boolean) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
VALUE_PARAMETER name:flag index:1 type:kotlin.Boolean
BLOCK_BODY
WHEN type=kotlin.Unit origin=IF
BRANCH
if: GET_VAR 'flag: kotlin.Boolean declared in <root>.testIfTheElseStatement_empty' type=kotlin.Boolean origin=null
then: TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CONST Int type=kotlin.Int value=0
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: BLOCK type=kotlin.Unit origin=null
BLOCK type=kotlin.Unit origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_5 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testIfTheElseStatement_empty' type=<root>.A origin=null
WHEN type=kotlin.Unit origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_5: <root>.A [val] declared in <root>.testIfTheElseStatement_empty' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CONST Int type=kotlin.Int value=1
FUN name:testIfTheElseParenthesized_throwsJvm visibility:public modality:FINAL <> (a:<root>.A, flag:kotlin.Boolean) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
VALUE_PARAMETER name:flag index:1 type:kotlin.Boolean
BLOCK_BODY
WHEN type=kotlin.Unit origin=IF
BRANCH
if: GET_VAR 'flag: kotlin.Boolean declared in <root>.testIfTheElseParenthesized_throwsJvm' type=kotlin.Boolean origin=null
then: TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CONST Int type=kotlin.Int value=0
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: BLOCK type=kotlin.Unit origin=null
BLOCK type=kotlin.Unit origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_6 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testIfTheElseParenthesized_throwsJvm' type=<root>.A origin=null
WHEN type=kotlin.Unit origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_6: <root>.A [val] declared in <root>.testIfTheElseParenthesized_throwsJvm' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CONST Int type=kotlin.Int value=1
FUN name:testIfTheElseAnnotated_throwsJvm visibility:public modality:FINAL <> (a:<root>.A, flag:kotlin.Boolean) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
VALUE_PARAMETER name:flag index:1 type:kotlin.Boolean
BLOCK_BODY
WHEN type=kotlin.Unit origin=IF
BRANCH
if: GET_VAR 'flag: kotlin.Boolean declared in <root>.testIfTheElseAnnotated_throwsJvm' type=kotlin.Boolean origin=null
then: TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CONST Int type=kotlin.Int value=0
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: BLOCK type=kotlin.Unit origin=null
BLOCK type=kotlin.Unit origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_7 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testIfTheElseAnnotated_throwsJvm' type=<root>.A origin=null
WHEN type=kotlin.Unit origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_7: <root>.A [val] declared in <root>.testIfTheElseAnnotated_throwsJvm' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CONST Int type=kotlin.Int value=1
FUN name:testLambdaResultExpression_throws visibility:public modality:FINAL <> (a:<root>.A) returnType:kotlin.Unit
VALUE_PARAMETER name:a index:0 type:<root>.A
BLOCK_BODY
TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=kotlin.Int origin=INVOKE
$this: FUN_EXPR type=kotlin.Function0<kotlin.Int> origin=LAMBDA
FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Int
BLOCK_BODY
RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Int declared in <root>.testLambdaResultExpression_throws'
BLOCK type=kotlin.Int origin=WHEN
VAR IR_TEMPORARY_VARIABLE name:tmp_8 type:<root>.A [val]
GET_VAR 'a: <root>.A declared in <root>.testLambdaResultExpression_throws' type=<root>.A origin=null
WHEN type=kotlin.Int origin=WHEN
BRANCH
if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
arg0: GET_VAR 'val tmp_8: <root>.A [val] declared in <root>.testLambdaResultExpression_throws.<anonymous>' type=<root>.A origin=null
arg1: GET_ENUM 'ENUM_ENTRY name:V1' type=<root>.A
then: CONST Int type=kotlin.Int value=1
BRANCH
if: CONST Boolean type=kotlin.Boolean value=true
then: CALL 'public final fun noWhenBranchMatchedException (): kotlin.Nothing declared in kotlin.internal.ir' type=kotlin.Nothing origin=null
@@ -4820,6 +4820,11 @@ public class BytecodeTextTestGenerated extends AbstractBytecodeTextTest {
runTest("compiler/testData/codegen/bytecodeText/when/exhaustiveWhenReturn.kt");
}
@TestMetadata("exhaustiveWhenSpecialCases.kt")
public void testExhaustiveWhenSpecialCases() throws Exception {
runTest("compiler/testData/codegen/bytecodeText/when/exhaustiveWhenSpecialCases.kt");
}
@TestMetadata("exhaustiveWhenUnit.kt")
public void testExhaustiveWhenUnit() throws Exception {
runTest("compiler/testData/codegen/bytecodeText/when/exhaustiveWhenUnit.kt");
@@ -4748,6 +4748,11 @@ public class IrBytecodeTextTestGenerated extends AbstractIrBytecodeTextTest {
runTest("compiler/testData/codegen/bytecodeText/when/exhaustiveWhenReturn.kt");
}
@TestMetadata("exhaustiveWhenSpecialCases.kt")
public void testExhaustiveWhenSpecialCases() throws Exception {
runTest("compiler/testData/codegen/bytecodeText/when/exhaustiveWhenSpecialCases.kt");
}
@TestMetadata("exhaustiveWhenUnit.kt")
public void testExhaustiveWhenUnit() throws Exception {
runTest("compiler/testData/codegen/bytecodeText/when/exhaustiveWhenUnit.kt");
@@ -916,6 +916,11 @@ public class IrTextTestCaseGenerated extends AbstractIrTextTestCase {
runTest("compiler/testData/ir/irText/expressions/equals.kt");
}
@TestMetadata("exhaustiveWhenElseBranch.kt")
public void testExhaustiveWhenElseBranch() throws Exception {
runTest("compiler/testData/ir/irText/expressions/exhaustiveWhenElseBranch.kt");
}
@TestMetadata("extFunInvokeAsFun.kt")
public void testExtFunInvokeAsFun() throws Exception {
runTest("compiler/testData/ir/irText/expressions/extFunInvokeAsFun.kt");