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.kotlin.kotlin-compiler.1.3.11.source-code.FakeCallResolver.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.types.expressions
import com.intellij.openapi.project.Project
import org.jetbrains.kotlin.descriptors.CallableDescriptor
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.diagnostics.Errors
import org.jetbrains.kotlin.diagnostics.Severity
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.psi.*
import org.jetbrains.kotlin.resolve.BindingTrace
import org.jetbrains.kotlin.resolve.TemporaryBindingTrace
import org.jetbrains.kotlin.resolve.calls.CallResolver
import org.jetbrains.kotlin.resolve.calls.context.ResolutionContext
import org.jetbrains.kotlin.resolve.calls.inference.InferenceErrorData
import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall
import org.jetbrains.kotlin.resolve.calls.results.OverloadResolutionResults
import org.jetbrains.kotlin.resolve.calls.tasks.AbstractTracingStrategy
import org.jetbrains.kotlin.resolve.calls.tasks.TracingStrategy
import org.jetbrains.kotlin.resolve.calls.tasks.TracingStrategyImpl
import org.jetbrains.kotlin.resolve.calls.util.CallMaker
import org.jetbrains.kotlin.resolve.scopes.receivers.ReceiverValue
import org.jetbrains.kotlin.types.KotlinType
enum class FakeCallKind {
ITERATOR,
COMPONENT,
OTHER
}
class FakeCallResolver(
private val project: Project,
private val callResolver: CallResolver
) {
fun resolveFakeCall(
context: ResolutionContext<*>,
receiver: ReceiverValue?,
name: Name,
callElement: KtExpression,
reportErrorsOn: KtExpression,
callKind: FakeCallKind,
valueArguments: List
): OverloadResolutionResults {
val fakeTrace = TemporaryBindingTrace.create(context.trace, "trace to resolve fake call for", name)
val fakeBindingTrace = context.replaceBindingTrace(fakeTrace)
var reportIsMissingError = false
val realExpression = RealExpression(reportErrorsOn, callKind)
val result =
makeAndResolveFakeCallInContext(receiver, fakeBindingTrace, valueArguments, name, callElement, realExpression) { fake ->
reportIsMissingError =
fakeTrace.bindingContext.diagnostics.noSuppression().forElement(fake).any { it.severity == Severity.ERROR }
fakeTrace.commit({ _, key -> key != fake }, true)
}
val resolutionResults = result.second
if (reportIsMissingError) {
val diagnostic = when (callKind) {
FakeCallKind.ITERATOR -> Errors.ITERATOR_MISSING.on(reportErrorsOn)
FakeCallKind.COMPONENT -> if (receiver != null) Errors.COMPONENT_FUNCTION_MISSING.on(
reportErrorsOn,
name,
receiver.type
) else null
FakeCallKind.OTHER -> null
}
if (diagnostic != null) {
context.trace.report(diagnostic)
}
}
return resolutionResults
}
private class TracingStrategyForComponentCall(
fakeExpression: KtReferenceExpression,
val reportErrorsOn: KtExpression,
val name: Name,
val call: Call
) : TracingStrategy by TracingStrategyImpl.create(fakeExpression, call) {
override fun ambiguity(trace: BindingTrace, descriptors: Collection>) {
trace.report(Errors.COMPONENT_FUNCTION_AMBIGUITY.on(reportErrorsOn, name, descriptors))
}
override fun unsafeCall(trace: BindingTrace, type: KotlinType, isCallForImplicitInvoke: Boolean) {
trace.report(Errors.COMPONENT_FUNCTION_ON_NULLABLE.on(reportErrorsOn, name))
}
override fun typeInferenceFailed(context: ResolutionContext<*>, inferenceErrorData: InferenceErrorData) {
val diagnostic = AbstractTracingStrategy.typeInferenceFailedDiagnostic(context, inferenceErrorData, reportErrorsOn, call)
if (diagnostic != null) {
context.trace.report(diagnostic)
}
}
}
private class TracingStrategyForIteratorCall(
fakeExpression: KtReferenceExpression,
val reportErrorsOn: KtExpression,
val call: Call
) : TracingStrategy by TracingStrategyImpl.create(fakeExpression, call) {
override fun ambiguity(trace: BindingTrace, descriptors: Collection>) {
trace.report(Errors.ITERATOR_AMBIGUITY.on(reportErrorsOn, descriptors))
}
override fun unsafeCall(trace: BindingTrace, type: KotlinType, isCallForImplicitInvoke: Boolean) {
trace.report(Errors.ITERATOR_ON_NULLABLE.on(reportErrorsOn))
}
override fun typeInferenceFailed(context: ResolutionContext<*>, inferenceErrorData: InferenceErrorData) {
val diagnostic = AbstractTracingStrategy.typeInferenceFailedDiagnostic(context, inferenceErrorData, reportErrorsOn, call)
if (diagnostic != null) {
context.trace.report(diagnostic)
}
}
}
@JvmOverloads
fun makeAndResolveFakeCallInContext(
receiver: ReceiverValue?,
context: ResolutionContext<*>,
valueArguments: List,
name: Name,
callElement: KtExpression,
realExpression: RealExpression? = null,
onComplete: (KtSimpleNameExpression) -> Unit = { _ -> }
): Pair> {
val fakeCalleeExpression = KtPsiFactory(project, markGenerated = false).createSimpleName(name.asString())
val call = CallMaker.makeCallWithExpressions(callElement, receiver, null, fakeCalleeExpression, valueArguments)
val tracingStrategy = when (realExpression?.callKind) {
FakeCallKind.ITERATOR -> TracingStrategyForIteratorCall(fakeCalleeExpression, realExpression.expressionToReportErrorsOn, call)
FakeCallKind.COMPONENT -> TracingStrategyForComponentCall(
fakeCalleeExpression,
realExpression.expressionToReportErrorsOn,
name,
call
)
else -> null
}
val results = if (tracingStrategy != null)
callResolver.resolveCallWithGivenName(context, call, name, tracingStrategy)
else
callResolver.resolveCallWithGivenName(context, call, fakeCalleeExpression, name)
onComplete(fakeCalleeExpression)
return Pair(call, results)
}
class RealExpression(val expressionToReportErrorsOn: KtExpression, val callKind: FakeCallKind)
}
