Replace return@forEach with continue in ConvertForEachToForLoopIntention

So #KT-17332 Fixed
This commit is contained in:
Kirill Rakhman
2017-10-11 23:15:30 +03:00
committed by Mikhail Glukhikh
parent da52716bfd
commit 4c4427c280
6 changed files with 62 additions and 7 deletions
@@ -20,7 +20,10 @@ import com.intellij.openapi.editor.Editor
import org.jetbrains.kotlin.idea.caches.resolve.analyze
import org.jetbrains.kotlin.idea.util.CommentSaver
import org.jetbrains.kotlin.psi.*
import org.jetbrains.kotlin.psi.psiUtil.forEachDescendantOfType
import org.jetbrains.kotlin.resolve.BindingContext
import org.jetbrains.kotlin.resolve.DescriptorUtils
import org.jetbrains.kotlin.resolve.bindingContextUtil.getTargetFunction
import org.jetbrains.kotlin.resolve.calls.callUtil.getResolvedCall
import org.jetbrains.kotlin.resolve.scopes.receivers.ExpressionReceiver
@@ -40,11 +43,11 @@ class ConvertForEachToForLoopIntention : SelfTargetingOffsetIndependentIntention
}
override fun applyTo(element: KtSimpleNameExpression, editor: Editor?) {
val (expressionToReplace, receiver, functionLiteral) = extractData(element)!!
val (expressionToReplace, receiver, functionLiteral, context) = extractData(element)!!
val commentSaver = CommentSaver(expressionToReplace)
val loop = generateLoop(functionLiteral, receiver)
val loop = generateLoop(functionLiteral, receiver, context)
val result = expressionToReplace.replace(loop)
commentSaver.restore(result)
@@ -53,7 +56,8 @@ class ConvertForEachToForLoopIntention : SelfTargetingOffsetIndependentIntention
private data class Data(
val expressionToReplace: KtExpression,
val receiver: KtExpression,
val functionLiteral: KtLambdaExpression
val functionLiteral: KtLambdaExpression,
val context: BindingContext
)
private fun extractData(nameExpr: KtSimpleNameExpression): Data? {
@@ -64,20 +68,31 @@ class ConvertForEachToForLoopIntention : SelfTargetingOffsetIndependentIntention
else -> null
} ?: return null) as KtExpression //TODO: submit bug
val resolvedCall = expression.getResolvedCall(expression.analyze()) ?: return null
val context = expression.analyze()
val resolvedCall = expression.getResolvedCall(context) ?: return null
if (DescriptorUtils.getFqName(resolvedCall.resultingDescriptor).toString() !in FOR_EACH_FQ_NAMES) return null
val receiver = resolvedCall.call.explicitReceiver as? ExpressionReceiver ?: return null
val argument = resolvedCall.call.valueArguments.singleOrNull() ?: return null
val functionLiteral = argument.getArgumentExpression() as? KtLambdaExpression ?: return null
return Data(expression, receiver.expression, functionLiteral)
return Data(expression, receiver.expression, functionLiteral, context)
}
private fun generateLoop(functionLiteral: KtLambdaExpression, receiver: KtExpression): KtExpression {
private fun generateLoop(functionLiteral: KtLambdaExpression, receiver: KtExpression, context: BindingContext): KtExpression {
val factory = KtPsiFactory(functionLiteral)
val loopRange = KtPsiUtil.safeDeparenthesize(receiver)
val body = functionLiteral.bodyExpression!!
val function = functionLiteral.functionLiteral
body.forEachDescendantOfType<KtReturnExpression> {
if (it.getTargetFunction(context) == function) {
it.replace(factory.createExpression("continue"))
}
}
val loopRange = KtPsiUtil.safeDeparenthesize(receiver)
val parameter = functionLiteral.valueParameters.singleOrNull()
return factory.createExpressionByPattern("for($0 in $1){ $2 }", parameter ?: "it", loopRange, body)
}
}
@@ -0,0 +1,7 @@
// WITH_RUNTIME
fun foo() {
listOf(1).<caret>forEach {
listOf(1).forEach { return@forEach }
}
}
@@ -0,0 +1,7 @@
// WITH_RUNTIME
fun foo() {
for (it in listOf(1)) {
listOf(1).forEach { return@forEach }
}
}
@@ -0,0 +1,7 @@
// WITH_RUNTIME
fun foo() {
listOf(1).<caret>forEach {
return@forEach
}
}
@@ -0,0 +1,7 @@
// WITH_RUNTIME
fun foo() {
for (it in listOf(1)) {
continue
}
}
@@ -4535,6 +4535,18 @@ public class IntentionTestGenerated extends AbstractIntentionTest {
doTest(fileName);
}
@TestMetadata("withNestedReturn.kt")
public void testWithNestedReturn() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/convertForEachToForLoop/withNestedReturn.kt");
doTest(fileName);
}
@TestMetadata("withReturn.kt")
public void testWithReturn() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/convertForEachToForLoop/withReturn.kt");
doTest(fileName);
}
@TestMetadata("zeroArguments.kt")
public void testZeroArguments() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("idea/testData/intentions/convertForEachToForLoop/zeroArguments.kt");