Merge remote branch 'origin/master'

This commit is contained in:
Alex Tkachman
2011-11-24 22:33:13 +02:00
35 changed files with 333 additions and 61 deletions
+16
View File
@@ -1,4 +1,20 @@
<project name="Jet CI Bootstrap" default="unzipIdeaSDK">
<macrodef name="echoprop">
<attribute name="prop"/>
<sequential>
<echo>@{prop}=${@{prop}}</echo>
</sequential>
</macrodef>
<echoprop prop="os.name"/>
<echoprop prop="os.version"/>
<echoprop prop="os.arch"/>
<echoprop prop="java.home"/>
<echoprop prop="java.version"/>
<echoprop prop="user.name"/>
<echoprop prop="user.home"/>
<echoprop prop="user.dir"/>
<target name="unzipIdeaSDK">
<unzip dest="ideaSDK">
<fileset dir="ideaSDK" includes="ideaIC*.zip"/>
@@ -10,6 +10,7 @@ import org.jetbrains.jet.codegen.intrinsics.IntrinsicMethods;
import org.jetbrains.jet.lang.cfg.pseudocode.JetControlFlowDataTraceFactory;
import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
import org.jetbrains.jet.lang.descriptors.ConstructorDescriptor;
import org.jetbrains.jet.lang.diagnostics.DiagnosticUtils;
import org.jetbrains.jet.lang.psi.*;
import org.jetbrains.jet.lang.resolve.AnalyzingUtils;
import org.jetbrains.jet.lang.resolve.BindingContext;
@@ -113,6 +114,7 @@ public class GenerationState {
}
catch (Throwable e) {
errorHandler.reportException(e, namespace.getContainingFile().getVirtualFile().getUrl());
DiagnosticUtils.throwIfRunningOnServer(e);
}
}
}
@@ -11,6 +11,7 @@ import com.intellij.psi.util.PsiModificationTracker;
import com.intellij.util.Function;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.jet.lang.cfg.pseudocode.JetControlFlowDataTraceFactory;
import org.jetbrains.jet.lang.diagnostics.DiagnosticUtils;
import org.jetbrains.jet.lang.diagnostics.Errors;
import org.jetbrains.jet.lang.psi.JetDeclaration;
import org.jetbrains.jet.lang.psi.JetFile;
@@ -68,18 +69,8 @@ public class AnalyzerFacade {
throw e;
}
catch (Throwable e) {
// This is needed for the Web Demo server to log the exceptions coming from the analyzer instead of showing them in the editor.
if (System.getProperty("kotlin.running.in.server.mode", "false").equals("true")) {
if (e instanceof RuntimeException) {
RuntimeException runtimeException = (RuntimeException) e;
throw runtimeException;
}
if (e instanceof Error) {
Error error = (Error) e;
throw error;
}
throw new RuntimeException(e);
}
DiagnosticUtils.throwIfRunningOnServer(e);
e.printStackTrace();
BindingTraceContext bindingTraceContext = new BindingTraceContext();
bindingTraceContext.report(Errors.EXCEPTION_WHILE_ANALYZING.on(file, e));
@@ -93,5 +84,4 @@ public class AnalyzerFacade {
}
return bindingContextCachedValue.getValue();
}
}
@@ -21,7 +21,9 @@ public interface CallableDescriptor extends DeclarationDescriptor {
@NotNull
List<TypeParameterDescriptor> getTypeParameters();
@NotNull
/**
* Method may return null for not yet fully initialized object or if error occurred.
*/
JetType getReturnType();
@NotNull
@@ -120,7 +120,6 @@ public class FunctionDescriptorImpl extends DeclarationDescriptorImpl implements
}
@Override
@NotNull
public JetType getReturnType() {
return unsubstitutedReturnType;
}
@@ -113,7 +113,6 @@ public class PropertyDescriptor extends VariableDescriptorImpl implements Callab
return expectedThisObject;
}
@NotNull
@Override
public JetType getReturnType() {
return getOutType();
@@ -34,7 +34,6 @@ public class PropertyGetterDescriptor extends PropertyAccessorDescriptor {
return Collections.emptyList();
}
@NotNull
@Override
public JetType getReturnType() {
return returnType;
@@ -84,7 +84,6 @@ public abstract class VariableDescriptorImpl extends DeclarationDescriptorImpl i
return ReceiverDescriptor.NO_RECEIVER;
}
@NotNull
@Override
public JetType getReturnType() {
return getOutType();
@@ -81,4 +81,19 @@ public class DiagnosticUtils {
}
return position;
}
public static void throwIfRunningOnServer(Throwable e) {
// This is needed for the Web Demo server to log the exceptions coming from the analyzer instead of showing them in the editor.
if (System.getProperty("kotlin.running.in.server.mode", "false").equals("true")) {
if (e instanceof RuntimeException) {
RuntimeException runtimeException = (RuntimeException) e;
throw runtimeException;
}
if (e instanceof Error) {
Error error = (Error) e;
throw error;
}
throw new RuntimeException(e);
}
}
}
@@ -16,6 +16,7 @@ import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import static org.jetbrains.jet.lang.diagnostics.Severity.ERROR;
import static org.jetbrains.jet.lang.diagnostics.Severity.WARNING;
@@ -288,7 +289,10 @@ public interface Errors {
ParameterizedDiagnosticFactory2<JetType, Integer> TYPE_MISMATCH_IN_TUPLE_PATTERN = ParameterizedDiagnosticFactory2.create(ERROR, "Type mismatch: subject is of type {0} but the pattern is of type Tuple{1}"); // TODO: message
ParameterizedDiagnosticFactory2<JetType, JetType> TYPE_MISMATCH_IN_BINDING_PATTERN = ParameterizedDiagnosticFactory2.create(ERROR, "{0} must be a supertype of {1}. Use 'is' to match against {0}");
ParameterizedDiagnosticFactory2<JetType, JetType> INCOMPATIBLE_TYPES = ParameterizedDiagnosticFactory2.create(ERROR, "Incompatible types: {0} and {1}");
ParameterizedDiagnosticFactory1<JetType> CANNOT_CHECK_FOR_ERASED = ParameterizedDiagnosticFactory1.create(ERROR, "Cannot check for instance of erased type: {0}");
ParameterizedDiagnosticFactory2<JetType, JetType> UNCHECKED_CAST = ParameterizedDiagnosticFactory2.create(WARNING, "Unchecked cast: {0} to {1}");
ParameterizedDiagnosticFactory3<TypeParameterDescriptor, ClassDescriptor, Collection<JetType>> INCONSISTENT_TYPE_PARAMETER_VALUES = new ParameterizedDiagnosticFactory3<TypeParameterDescriptor, ClassDescriptor, Collection<JetType>>(ERROR, "Type parameter {0} of {1} has inconsistent values: {2}") {
@Override
protected String makeMessageForA(@NotNull TypeParameterDescriptor typeParameterDescriptor) {
@@ -39,6 +39,8 @@ import static org.jetbrains.jet.lang.types.TypeUtils.NO_EXPECTED_TYPE;
* @author abreslav
*/
public class CallResolver {
private static final JetType DONT_CARE = ErrorUtils.createErrorTypeWithCustomDebugName("DONT_CARE");
private final JetSemanticServices semanticServices;
private final OverloadingConflictResolver overloadingConflictResolver;
private final DataFlowInfo dataFlowInfo;
@@ -412,7 +414,7 @@ public class CallResolver {
constraintSystem.registerTypeVariable(typeParameterDescriptor, Variance.INVARIANT); // TODO
}
TypeSubstitutor substituteUnknown = ConstraintSystemImpl.makeConstantSubstitutor(candidate.getTypeParameters(), ErrorUtils.createErrorType("Unknown"));
TypeSubstitutor substituteDontCare = ConstraintSystemImpl.makeConstantSubstitutor(candidate.getTypeParameters(), DONT_CARE);
for (Map.Entry<ValueParameterDescriptor, ResolvedValueArgument> entry : candidateCall.getValueArguments().entrySet()) {
ResolvedValueArgument valueArgument = entry.getValue();
@@ -428,7 +430,7 @@ public class CallResolver {
// We'll type check the arguments later, with the inferred types expected
TemporaryBindingTrace traceForUnknown = TemporaryBindingTrace.create(temporaryTrace);
ExpressionTypingServices temporaryServices = new ExpressionTypingServices(semanticServices, traceForUnknown);
JetType type = temporaryServices.getType(scope, expression, substituteUnknown.substitute(valueParameterDescriptor.getOutType(), Variance.INVARIANT));
JetType type = temporaryServices.getType(scope, expression, substituteDontCare.substitute(valueParameterDescriptor.getOutType(), Variance.INVARIANT));
if (type != null) {
constraintSystem.addSubtypingConstraint(type, effectiveExpectedType);
}
@@ -439,10 +441,10 @@ public class CallResolver {
}
// Error is already reported if something is missing
ReceiverDescriptor receiverParameter = candidateCall.getReceiverArgument();
ReceiverDescriptor candidateReceiver = candidate.getReceiverParameter();
if (receiverParameter.exists() && candidateReceiver.exists()) {
constraintSystem.addSubtypingConstraint(receiverParameter.getType(), candidateReceiver.getType());
ReceiverDescriptor receiverArgument = candidateCall.getReceiverArgument();
ReceiverDescriptor receiverParameter = candidate.getReceiverParameter();
if (receiverArgument.exists() && receiverParameter.exists()) {
constraintSystem.addSubtypingConstraint(receiverArgument.getType(), receiverParameter.getType());
}
if (expectedType != NO_EXPECTED_TYPE) {
@@ -171,11 +171,20 @@ public class ErrorUtils {
}
private static JetType createErrorType(String debugMessage, JetScope memberScope) {
return new ErrorTypeImpl(new TypeConstructorImpl(ERROR_CLASS, Collections.<AnnotationDescriptor>emptyList(), false, "[ERROR : " + debugMessage + "]", Collections.<TypeParameterDescriptor>emptyList(), Collections.singleton(JetStandardClasses.getAnyType())), memberScope);
return createErrorTypeWithCustomDebugName(memberScope, "[ERROR : " + debugMessage + "]");
}
@NotNull
public static JetType createErrorTypeWithCustomDebugName(String debugName) {
return createErrorTypeWithCustomDebugName(ERROR_SCOPE, debugName);
}
private static JetType createErrorTypeWithCustomDebugName(JetScope memberScope, String debugName) {
return new ErrorTypeImpl(new TypeConstructorImpl(ERROR_CLASS, Collections.<AnnotationDescriptor>emptyList(), false, debugName, Collections.<TypeParameterDescriptor>emptyList(), Collections.singleton(JetStandardClasses.getAnyType())), memberScope);
}
public static JetType createWrongVarianceErrorType(TypeProjection value) {
return createErrorType(value + " is not allowed here]", value.getType().getMemberScope());
return createErrorType(value + " is not allowed here", value.getType().getMemberScope());
}
public static ClassifierDescriptor getErrorClass() {
@@ -110,54 +110,65 @@ public class TypeUtils {
}
@Nullable
public static JetType intersect(JetTypeChecker typeChecker, Set<JetType> types) {
public static JetType intersect(@NotNull JetTypeChecker typeChecker, @NotNull Set<JetType> types) {
assert !types.isEmpty();
if (types.size() == 1) {
return types.iterator().next();
}
StringBuilder debugName = new StringBuilder();
boolean nullable = false;
Set<JetType> resultingTypes = Sets.newHashSet();
// Intersection of T1..Tn is an intersection of their non-null versions,
// made nullable is they all were nullable
boolean allNullable = true;
boolean nothingTypePresent = false;
List<JetType> nullabilityStripped = Lists.newArrayList();
for (JetType type : types) {
nothingTypePresent |= JetStandardClasses.isNothingOrNullableNothing(type);
allNullable &= type.isNullable();
nullabilityStripped.add(makeNotNullable(type));
}
if (nothingTypePresent) {
return allNullable ? JetStandardClasses.getNullableNothingType() : JetStandardClasses.getNothingType();
}
// Now we remove types that have subtypes in the list
List<JetType> resultingTypes = Lists.newArrayList();
outer:
for (Iterator<JetType> iterator = types.iterator(); iterator.hasNext();) {
JetType type = iterator.next();
for (JetType type : nullabilityStripped) {
if (!canHaveSubtypes(typeChecker, type)) {
for (JetType other : types) {
for (JetType other : nullabilityStripped) {
// It makes sense to check for subtyping of other <: type, despite that
// type is not supposed to be open, for there're enums
if (!type.equals(other) && !typeChecker.isSubtypeOf(type, other) && !typeChecker.isSubtypeOf(other, type)) {
return null;
}
}
return type;
return makeNullableAsSpecified(type, allNullable);
}
else {
for (JetType other : types) {
for (JetType other : nullabilityStripped) {
if (!type.equals(other) && typeChecker.isSubtypeOf(other, type)) {
continue outer;
}
}
}
nullable |= type.isNullable();
resultingTypes.add(type);
debugName.append(type.toString());
if (iterator.hasNext()) {
debugName.append(" & ");
}
}
if (resultingTypes.size() == 1) {
return makeNullableAsSpecified(resultingTypes.get(0), allNullable);
}
List<AnnotationDescriptor> noAnnotations = Collections.<AnnotationDescriptor>emptyList();
TypeConstructor constructor = new TypeConstructorImpl(
null,
noAnnotations,
false,
debugName.toString(),
makeDebugNameForIntersectionType(resultingTypes).toString(),
Collections.<TypeParameterDescriptor>emptyList(),
resultingTypes);
@@ -171,11 +182,25 @@ public class TypeUtils {
return new JetTypeImpl(
noAnnotations,
constructor,
nullable,
allNullable,
Collections.<TypeProjection>emptyList(),
new ChainedScope(null, scopes)); // TODO : check intersectibility, don't use a chanied scope
}
private static StringBuilder makeDebugNameForIntersectionType(Iterable<JetType> resultingTypes) {
StringBuilder debugName = new StringBuilder("{");
for (Iterator<JetType> iterator = resultingTypes.iterator(); iterator.hasNext(); ) {
JetType type = iterator.next();
debugName.append(type.toString());
if (iterator.hasNext()) {
debugName.append(" & ");
}
}
debugName.append("}");
return debugName;
}
public static boolean canHaveSubtypes(JetTypeChecker typeChecker, JetType type) {
if (type.isNullable()) {
return true;
@@ -1,6 +1,7 @@
package org.jetbrains.jet.lang.types.expressions;
import com.google.common.collect.Lists;
import com.google.common.collect.Multimap;
import com.intellij.lang.ASTNode;
import com.intellij.psi.PsiElement;
import com.intellij.psi.tree.IElementType;
@@ -8,6 +9,7 @@ import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.JetNodeTypes;
import org.jetbrains.jet.lang.descriptors.*;
import org.jetbrains.jet.lang.diagnostics.Errors;
import org.jetbrains.jet.lang.psi.*;
import org.jetbrains.jet.lang.resolve.*;
import org.jetbrains.jet.lang.resolve.calls.CallMaker;
@@ -245,10 +247,63 @@ public class BasicExpressionTypingVisitor extends ExpressionTypingVisitor {
else {
if (typeChecker.isSubtypeOf(actualType, targetType)) {
context.trace.report(USELESS_CAST.on(expression, expression.getOperationSign()));
} else {
if (isCastErased(actualType, targetType)) {
context.trace.report(Errors.UNCHECKED_CAST.on(expression, actualType, targetType));
}
}
}
}
/**
* Check if assignment from ActualType to TargetType is erased.
* It is an error in "is" statement and warning in "as".
*/
public static boolean isCastErased(JetType actualType, JetType targetType) {
if (!(targetType.getConstructor().getDeclarationDescriptor() instanceof ClassDescriptor)) {
// TODO: what if it is TypeParameterDescriptor?
return false;
}
JetType targetTypeClerared = TypeUtils.makeUnsubstitutedType(
(ClassDescriptor) targetType.getConstructor().getDeclarationDescriptor(), null);
Multimap<TypeConstructor, TypeProjection> clearTypeSubstitutionMap =
TypeUtils.buildDeepSubstitutionMultimap(targetTypeClerared);
Set<JetType> clearSubstituted = new HashSet<JetType>();
for (int i = 0; i < actualType.getConstructor().getParameters().size(); ++i) {
TypeParameterDescriptor subjectTypeParameterDescriptor = actualType.getConstructor().getParameters().get(i);
Collection<TypeProjection> subst = clearTypeSubstitutionMap.get(subjectTypeParameterDescriptor.getTypeConstructor());
for (TypeProjection proj : subst) {
clearSubstituted.add(proj.getType());
}
}
for (int i = 0; i < targetType.getConstructor().getParameters().size(); ++i) {
TypeParameterDescriptor typeParameter = targetType.getConstructor().getParameters().get(i);
TypeProjection typeProjection = targetType.getArguments().get(i);
if (typeParameter.isReified()) {
continue;
}
// "is List<*>"
if (typeProjection.equals(TypeUtils.makeStarProjection(typeParameter))) {
continue;
}
// if parameter is mapped to nothing then it is erased
if (!clearSubstituted.contains(typeParameter.getDefaultType())) {
return true;
}
}
return false;
}
@Override
public JetType visitTupleExpression(JetTupleExpression expression, ExpressionTypingContext context) {
List<JetExpression> entries = expression.getEntries();
@@ -1,11 +1,14 @@
package org.jetbrains.jet.lang.types.expressions;
import com.google.common.collect.Multimap;
import com.google.common.collect.Sets;
import com.intellij.lang.ASTNode;
import com.intellij.openapi.util.Ref;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jet.lang.descriptors.TypeParameterDescriptor;
import org.jetbrains.jet.lang.descriptors.VariableDescriptor;
import org.jetbrains.jet.lang.diagnostics.Errors;
import org.jetbrains.jet.lang.psi.*;
import org.jetbrains.jet.lang.resolve.calls.autocasts.DataFlowInfo;
import org.jetbrains.jet.lang.resolve.calls.autocasts.DataFlowValue;
@@ -17,8 +20,7 @@ import org.jetbrains.jet.lang.resolve.scopes.receivers.ReceiverDescriptor;
import org.jetbrains.jet.lang.resolve.scopes.receivers.TransientReceiver;
import org.jetbrains.jet.lang.types.*;
import java.util.List;
import java.util.Set;
import java.util.*;
import static org.jetbrains.jet.lang.diagnostics.Errors.*;
import static org.jetbrains.jet.lang.types.expressions.ExpressionTypingUtils.ensureBooleanResultWithCustomSubject;
@@ -245,6 +247,9 @@ public class PatternMatchingTypingVisitor extends ExpressionTypingVisitor {
}
}
/*
* (a: SubjectType) is Type
*/
private void checkTypeCompatibility(@Nullable JetType type, @NotNull JetType subjectType, @NotNull JetElement reportErrorOn) {
// TODO : Take auto casts into account?
if (type == null) {
@@ -253,6 +258,11 @@ public class PatternMatchingTypingVisitor extends ExpressionTypingVisitor {
if (TypeUtils.intersect(context.semanticServices.getTypeChecker(), Sets.newHashSet(type, subjectType)) == null) {
// context.trace.getErrorHandler().genericError(reportErrorOn.getNode(), "Incompatible types: " + type + " and " + subjectType);
context.trace.report(INCOMPATIBLE_TYPES.on(reportErrorOn, type, subjectType));
return;
}
if (BasicExpressionTypingVisitor.isCastErased(subjectType, type)) {
context.trace.report(Errors.CANNOT_CHECK_FOR_ERASED.on(reportErrorOn, type));
}
}
@@ -9,6 +9,7 @@ import org.jetbrains.jet.lang.descriptors.TypeParameterDescriptor;
import org.jetbrains.jet.lang.types.*;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
@@ -46,8 +47,19 @@ public class ConstraintSystemImpl implements ConstraintSystem {
}
public static abstract class TypeValue {
private final Set<TypeValue> upperBounds = Sets.newHashSet();
private final Set<TypeValue> lowerBounds = Sets.newHashSet();
private final Set<TypeValue> mutableUpperBounds = Sets.newHashSet();
private final Set<TypeValue> upperBounds = Collections.unmodifiableSet(mutableUpperBounds);
private final Set<TypeValue> mutableLowerBounds = Sets.newHashSet();
private final Set<TypeValue> lowerBounds = Collections.unmodifiableSet(mutableLowerBounds);
public void addUpperBound(@NotNull TypeValue bound) {
mutableUpperBounds.add(bound);
}
public void addLowerBound(@NotNull TypeValue bound) {
mutableLowerBounds.add(bound);
}
@NotNull
public Set<TypeValue> getUpperBounds() {
@@ -86,8 +98,8 @@ public class ConstraintSystemImpl implements ConstraintSystem {
throw new LoopInTypeVariableConstraintsException();
}
if (value == null) {
JetTypeChecker typeChecker = JetTypeChecker.INSTANCE;
beingComputed = true;
JetTypeChecker typeChecker = JetTypeChecker.INSTANCE;
try {
if (positionVariance == Variance.IN_VARIANCE) {
// maximal solution
@@ -320,8 +332,8 @@ public class ConstraintSystemImpl implements ConstraintSystem {
private void addSubtypingConstraintOnTypeValues(TypeValue typeValueForLower, TypeValue typeValueForUpper) {
println(typeValueForLower + " :< " + typeValueForUpper);
if (typeValueForLower != typeValueForUpper) {
typeValueForLower.getUpperBounds().add(typeValueForUpper);
typeValueForUpper.getLowerBounds().add(typeValueForLower);
typeValueForLower.addUpperBound(typeValueForUpper);
typeValueForUpper.addLowerBound(typeValueForLower);
}
}
@@ -358,13 +370,20 @@ public class ConstraintSystemImpl implements ConstraintSystem {
// effective bounds for each node
Set<TypeValue> visited = Sets.newHashSet();
for (KnownType knownType : knownTypes.values()) {
transitiveClosure(knownType, visited);
}
for (UnknownType unknownType : unknownTypes.values()) {
transitiveClosure(unknownType, visited);
}
for (UnknownType unknownType : unknownTypes.values()) {
println("Constraints for " + unknownType.getTypeParameterDescriptor());
printTypeValue(unknownType);
}
for (KnownType knownType : knownTypes.values()) {
println("Constraints for " + knownType.getType());
printTypeValue(knownType);
}
// Find inconsistencies
Solution solution = new Solution();
@@ -382,6 +401,15 @@ public class ConstraintSystemImpl implements ConstraintSystem {
return solution;
}
private void printTypeValue(TypeValue typeValue) {
for (TypeValue bound : typeValue.getUpperBounds()) {
println(" :< " + bound);
}
for (TypeValue bound : typeValue.getLowerBounds()) {
println(" :> " + bound);
}
}
private void check(TypeValue typeValue, Solution solution) {
try {
KnownType resultingValue = typeValue.getValue();
@@ -416,7 +444,7 @@ public class ConstraintSystemImpl implements ConstraintSystem {
}
}
solution.registerError("[TODO] Loop in constraints");
e.printStackTrace();
// e.printStackTrace();
}
}
@@ -426,6 +454,9 @@ public class ConstraintSystemImpl implements ConstraintSystem {
}
for (TypeValue upperBound : Sets.newHashSet(current.getUpperBounds())) {
if (upperBound instanceof KnownType) {
continue;
}
transitiveClosure(upperBound, visited);
Set<TypeValue> upperBounds = upperBound.getUpperBounds();
for (TypeValue transitiveBound : upperBounds) {
@@ -73,7 +73,11 @@ public class DescriptorRenderer implements Renderer {
}
public String renderType(JetType type) {
return escape(type.toString());
if (type != null) {
return escape("<?>");
} else {
return escape(type.toString());
}
}
protected String escape(String s) {
@@ -222,7 +226,6 @@ public class DescriptorRenderer implements Renderer {
renderName(descriptor, builder);
renderValueParameters(descriptor, builder);
// TODO: getReturnType may be uninitialized and throw IllegalStateException // stepan.koltsov@ 2011-11-21
builder.append(" : ").append(escape(renderType(descriptor.getReturnType())));
return super.visitFunctionDescriptor(descriptor, builder);
}
@@ -0,0 +1,4 @@
import java.util.List;
import java.util.Collection;
fun ff(c: Collection<String>) = c <!CAST_NEVER_SUCCEEDS!>as<!> List<Int>
@@ -0,0 +1,4 @@
import java.util.List;
import java.util.Collection;
fun ff(c: Collection<String>) = c as List<String>
@@ -0,0 +1,4 @@
import java.util.List;
fun ff(l: Any) = l as List<*>
@@ -0,0 +1,3 @@
import java.util.List;
fun ff(a: Any) = <!UNCHECKED_CAST!>a as List<String><!>
@@ -0,0 +1,5 @@
import java.util.Collection;
import java.util.List;
fun ff(l: Collection<String>) = l is List<String>
@@ -0,0 +1,9 @@
import java.util.Collection;
import java.util.List;
open class A
class B : A
fun ff(l: Collection<B>) = l is List<out A>
@@ -0,0 +1,3 @@
import java.util.List;
fun ff(l: Any) = l is <!CANNOT_CHECK_FOR_ERASED!>List<String><!>
@@ -0,0 +1,3 @@
import java.util.List;
fun ff(l: Any) = l is List<*>
@@ -0,0 +1,3 @@
class MyList<T>
fun ff(a: Any) = a is MyList<String>
@@ -0,0 +1,4 @@
trait Aaa
trait Bbb
fun f(a: Aaa) = a is Bbb
@@ -0,0 +1,6 @@
import java.util.List;
fun ff(l: Any) = when(l) {
is <!CANNOT_CHECK_FOR_ERASED!>List<String><!> => 1
else 2
}
@@ -0,0 +1,8 @@
//KT-600 Problem with 'sure' extension function type inference
fun <T : Any> T?.sure() : T { if (this != null) return this else throw NullPointerException() }
fun test() {
val i : Int? = 10
val <!UNUSED_VARIABLE!>i2<!> : Int = i.sure() // inferred type is Int? but Int was excepted
}
@@ -0,0 +1,16 @@
//KT-549 type inference failed
namespace demo
fun filter<T>(list : Array<T>, filter : fun (T) : Boolean) : java.util.List<T> {
val answer = java.util.ArrayList<T>();
for (l in list) {
if (filter(l)) answer.add(l)
}
return answer;
}
fun main(args : Array<String>) {
for (a in filter(args, {it.length > 1})) {
System.out?.println("Hello, ${a}!")
}
}
@@ -0,0 +1,20 @@
//KT-580 Type inference failed
namespace whats.the.difference
import java.util.*
fun iarray(vararg a : String) = a // BUG
fun main(vals : IntArray) {
val vals = iarray("789", "678", "567")
val diffs = ArrayList<Int>
for (i in vals.indices) {
for (j in i..vals.lastIndex()) // Type inference failed
diffs.add(vals[i].length - vals[j].length)
for (j in i..vals.lastIndex) // Type inference failed
diffs.add(vals[i].length - vals[j].length)
}
}
fun <T> Array<T>.lastIndex() = size - 1
val <T> Array<T>.lastIndex : Int get() = size - 1
@@ -0,0 +1,3 @@
//KT-571 Type inference failed
fun <T, R> let(t : T, body : fun(T) : R) = body(t)
private fun double(d : Int) : Int = let(d * 2) {it / 10 + it * 2 % 10}
@@ -1,6 +1,6 @@
fun typeName(a: Any?) : String {
return when(a) {
is java.util.ArrayList<Int> => "array list"
is java.util.ArrayList<*> => "array list"
else => "no idea"
}
}
@@ -8,4 +8,4 @@ fun typeName(a: Any?) : String {
fun box() : String {
if(typeName(java.util.ArrayList<Int> ()) != "array list") return "array list failed"
return "OK"
}
}
@@ -19,7 +19,7 @@ fun t3() {
fun t4() {
val e: E? = E()
System.out?.println(e?.foo() == e) //verify error
System.out?.println(e?.bar() == e) //verify error
System.out?.println(e?.foo()) //verify error
}
@@ -35,4 +35,5 @@ class C(val x: Int)
class D(val s: String)
class E() {
fun foo() = 1
fun bar() = this
}
@@ -162,6 +162,22 @@ public class JetTypeCheckerTest extends JetLiteFixture {
assertIntersection("Int?", "Int?", "Int?");
assertIntersection("Int", "Int?", "Int");
assertIntersection("Int", "Int", "Int?");
assertIntersection("Int", "Any", "Int");
assertIntersection("Int", "Int", "Any");
assertIntersection("Int", "Any", "Int?");
assertIntersection("Int", "Int?", "Any");
assertIntersection("Int", "Any?", "Int");
assertIntersection("Int", "Int", "Any?");
assertIntersection("Nothing", "Nothing", "Nothing");
assertIntersection("Nothing?", "Nothing?", "Nothing?");
assertIntersection("Nothing", "Nothing", "Nothing?");
assertIntersection("Nothing", "Nothing?", "Nothing");
assertIntersection("Nothing?", "String?", "Nothing?");
assertIntersection("Nothing?", "Nothing?", "String?");
}
public void testBasicSubtyping() throws Exception {