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// Copyright 2000-2021 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
package org.jetbrains.uast.test.common.kotlin
import com.intellij.psi.*
import junit.framework.TestCase
import org.jetbrains.kotlin.asJava.elements.KtLightMethod
import org.jetbrains.kotlin.psi.KtImportDirective
import org.jetbrains.kotlin.psi.KtNamedFunction
import org.jetbrains.kotlin.psi.KtProperty
import org.jetbrains.uast.*
import org.jetbrains.uast.visitor.UastVisitor
import org.junit.Assert
import java.lang.IllegalStateException
interface UastResolveApiTestBase : UastPluginSelection {
fun checkCallbackForDoWhile(filePath: String, uFile: UFile) {
val facade = uFile.findFacade()
?: throw IllegalStateException("No facade found at ${uFile.asRefNames()}")
val test = facade.methods.find { it.name == "test" }
?: throw IllegalStateException("Target function not found at ${uFile.asRefNames()}")
val resolvedBinaryOperators: MutableList<PsiMethod> = mutableListOf()
test.accept(object : UastVisitor {
override fun visitElement(node: UElement): Boolean {
return false
}
override fun visitBinaryExpression(node: UBinaryExpression): Boolean {
node.resolveOperator()?.let { resolvedBinaryOperators.add(it) }
return false
}
})
Assert.assertEquals("Expect != (String.equals)", 1, resolvedBinaryOperators.size)
val op = resolvedBinaryOperators.single()
Assert.assertEquals("equals", op.name)
val kt44412 = facade.methods.find { it.name == "kt44412" }
?: throw IllegalStateException("Target function not found at ${uFile.asRefNames()}")
resolvedBinaryOperators.clear()
val resolvedUnaryOperators: MutableList<PsiMethod> = mutableListOf()
kt44412.accept(object : UastVisitor {
override fun visitElement(node: UElement): Boolean {
return false
}
override fun visitBinaryExpression(node: UBinaryExpression): Boolean {
node.resolveOperator()?.let { resolvedBinaryOperators.add(it) }
return false
}
override fun visitPrefixExpression(node: UPrefixExpression): Boolean {
node.resolveOperator()?.let { resolvedUnaryOperators.add(it) }
return false
}
})
Assert.assertEquals("Kotlin built-in >= (int.compareTo) and == (int.equals) are invisible", 0, resolvedBinaryOperators.size)
Assert.assertEquals("Kotlin built-in ++ (int.inc) is invisible", 0, resolvedUnaryOperators.size)
}
fun checkCallbackForIf(filePath: String, uFile: UFile) {
val facade = uFile.findFacade()
?: throw IllegalStateException("No facade found at ${uFile.asRefNames()}")
val test = facade.methods.find { it.name == "test" }
?: throw IllegalStateException("Target function not found at ${uFile.asRefNames()}")
val resolvedOperators: MutableList<PsiMethod> = mutableListOf()
test.accept(object : UastVisitor {
override fun visitElement(node: UElement): Boolean {
return false
}
override fun visitBinaryExpression(node: UBinaryExpression): Boolean {
node.resolveOperator()?.let { resolvedOperators.add(it) }
return false
}
})
Assert.assertEquals("Kotlin built-in * (int.times) and + (int.plus) are invisible", 0, resolvedOperators.size)
}
fun checkCallbackForMethodReference(filePath: String, uFile: UFile) {
val facade = uFile.findFacade()
?: throw IllegalStateException("No facade found at ${uFile.asRefNames()}")
// val x = Foo::bar
val x = facade.fields.single()
var barReference: PsiElement? = null
x.accept(object : UastVisitor {
override fun visitElement(node: UElement): Boolean {
return false
}
override fun visitCallableReferenceExpression(node: UCallableReferenceExpression): Boolean {
barReference = node.resolve()
return false
}
})
Assert.assertNotNull("Foo::bar is not resolved", barReference)
val barReferenceOrigin = (barReference as KtLightMethod).kotlinOrigin
Assert.assertTrue("Foo::bar is not a function", barReferenceOrigin is KtNamedFunction)
Assert.assertEquals("Foo.bar", (barReferenceOrigin as KtNamedFunction).fqName?.asString())
}
fun checkCallbackForImports(filePath: String, uFile: UFile) {
uFile.imports.forEach { uImport ->
if ((uImport.sourcePsi as? KtImportDirective)?.text?.endsWith("sleep") == true) {
// There are two static [sleep] in [java.lang.Thread], so the import (w/o knowing its usage) can't be resolved to
// a single function, hence `null` (as [resolve] result).
// TODO: make [UImportStatement] a subtype of [UMultiResolvable], instead of [UResolvable]?
return@forEach
}
val resolvedImport = uImport.resolve()
?: throw IllegalStateException("Unresolved import: ${uImport.asRenderString()}")
val expected = when (resolvedImport) {
is PsiClass -> {
// import java.lang.Thread.*
resolvedImport.name == "Thread" || resolvedImport.name == "UncaughtExceptionHandler"
}
is PsiMethod -> {
// import java.lang.Thread.currentThread
resolvedImport.name == "currentThread" ||
// import kotlin.collections.emptyList
(!isFirUastPlugin && resolvedImport.name == "emptyList")
}
is PsiField -> {
// import java.lang.Thread.NORM_PRIORITY
resolvedImport.name == "NORM_PRIORITY" ||
// import kotlin.Int.Companion.SIZE_BYTES
(!isFirUastPlugin && resolvedImport.name == "SIZE_BYTES")
}
is KtNamedFunction -> {
// import kotlin.collections.emptyList
isFirUastPlugin && resolvedImport.isTopLevel && resolvedImport.name == "emptyList"
}
is KtProperty -> {
// import kotlin.Int.Companion.SIZE_BYTES
isFirUastPlugin && resolvedImport.name == "SIZE_BYTES"
}
else -> false
}
Assert.assertTrue("Unexpected import: $resolvedImport", expected)
}
}
fun checkCallbackForReceiverFun(filePath: String, uFile: UFile) {
val facade = uFile.findFacade()
?: throw IllegalStateException("No facade found at ${uFile.asRefNames()}")
// ... String.foo() = this.length
val foo = facade.methods.find { it.name == "foo" }
?: throw IllegalStateException("Target function not found at ${uFile.asRefNames()}")
var thisReference: PsiElement? = foo
foo.accept(object : UastVisitor {
override fun visitElement(node: UElement): Boolean {
return false
}
override fun visitThisExpression(node: UThisExpression): Boolean {
thisReference = node.resolve()
return false
}
})
Assert.assertNull("plain `this` has `null` label", thisReference)
}
fun checkCallbackForRetention(uFilePath: String, uFile: UFile) {
fun checkRetentionAndResolve(uAnnotation: UAnnotation) {
if (uAnnotation.qualifiedName?.endsWith("Retention") == true) {
val value = uAnnotation.findAttributeValue("value")
val reference = value as? UReferenceExpression
TestCase.assertNotNull("Can't find the reference to @Retention value", reference)
// Resolve @Retention value
val resolvedValue = reference!!.resolve()
TestCase.assertNotNull("Can't resolve @Retention value", resolvedValue)
TestCase.assertEquals("SOURCE", (resolvedValue as? PsiNamedElement)?.name)
}
}
// Lookup @Anno directly from the source file
val anno = uFile.classes.find { it.name == "Anno" }
?: throw IllegalStateException("Target class not found at ${uFile.asRefNames()}")
TestCase.assertTrue("@Anno is not an annotation?!", anno.isAnnotationType)
anno.uAnnotations.forEach(::checkRetentionAndResolve)
// Lookup @Anno indirectly from an annotated test class
val testClass = uFile.classes.find { it.name == "TestClass" }
?: throw IllegalStateException("Target class not found at ${uFile.asRefNames()}")
val annoOnTestClass = testClass.uAnnotations.find { it.qualifiedName?.endsWith("Anno") == true }
?: throw IllegalStateException("Target annotation not found at ${testClass.asSourceString()}")
// Resolve @Anno to PsiClass
val resolvedAnno = annoOnTestClass.resolve()
TestCase.assertNotNull("Can't resolve @Anno on TestClass", resolvedAnno)
for (psi in resolvedAnno!!.annotations) {
val uAnnotation = anno.uAnnotations.find { it.javaPsi == psi } ?: continue
val rebuiltAnnotation = psi.toUElement(UAnnotation::class.java)
TestCase.assertNotNull("Should be able to rebuild UAnnotation from $psi", rebuiltAnnotation)
TestCase.assertEquals(uAnnotation.qualifiedName, rebuiltAnnotation!!.qualifiedName)
// Check Retention on a rebuilt UAnnotation
checkRetentionAndResolve(rebuiltAnnotation)
}
}
}
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