JS: fix coroutine transformation of callable references to local functions. See KT-16164

This commit is contained in:
Alexey Andreev
2017-03-01 18:22:34 +03:00
parent 18fb70b32f
commit 8567db10b5
6 changed files with 93 additions and 5 deletions
@@ -18,8 +18,9 @@ package org.jetbrains.kotlin.js.coroutine
import org.jetbrains.kotlin.js.backend.ast.*
import org.jetbrains.kotlin.js.backend.ast.metadata.*
import org.jetbrains.kotlin.js.inline.util.collectFreeVariables
import org.jetbrains.kotlin.js.inline.util.replaceNames
import org.jetbrains.kotlin.js.translate.utils.JsAstUtils
import org.jetbrains.kotlin.utils.singletonOrEmptyList
fun JsNode.collectNodesToSplit(breakContinueTargets: Map<JsContinue, JsStatement>): Set<JsNode> {
val root = this
@@ -189,7 +190,7 @@ private fun CoroutineBlock.collectTargetBlocks(): Set<CoroutineBlock> {
val targetBlocks = mutableSetOf<CoroutineBlock>()
jsBlock.accept(object : RecursiveJsVisitor() {
override fun visitDebugger(x: JsDebugger) {
targetBlocks += x.targetExceptionBlock.singletonOrEmptyList() + x.targetBlock.singletonOrEmptyList()
targetBlocks += listOfNotNull(x.targetExceptionBlock) + listOfNotNull(x.targetBlock)
}
})
return targetBlocks
@@ -239,7 +240,23 @@ fun JsBlock.replaceSpecialReferences(context: CoroutineTransformationContext) {
fun JsBlock.replaceLocalVariables(scope: JsScope, context: CoroutineTransformationContext, localVariables: Set<JsName>) {
replaceSpecialReferences(context)
val visitor = object : JsVisitorWithContextImpl() {
override fun visit(x: JsFunction, ctx: JsContext<*>) = false
override fun visit(x: JsFunction, ctx: JsContext<*>): Boolean = false
override fun endVisit(x: JsFunction, ctx: JsContext<in JsNode>) {
val freeVars = x.collectFreeVariables().intersect(localVariables)
if (freeVars.isNotEmpty()) {
val wrapperFunction = JsFunction(x.scope.parent, JsBlock(), "")
val wrapperInvocation = JsInvocation(wrapperFunction)
wrapperFunction.body.statements += JsReturn(x)
val nameMap = freeVars.associate { it to wrapperFunction.scope.declareTemporaryName(it.ident) }
for (freeVar in freeVars) {
wrapperFunction.parameters += JsParameter(nameMap[freeVar]!!)
wrapperInvocation.arguments += JsNameRef(scope.getFieldName(freeVar), JsLiteral.THIS)
}
x.body = replaceNames(x.body, nameMap.mapValues { it.value.makeRef() })
ctx.replaceMe(wrapperInvocation)
}
}
override fun endVisit(x: JsNameRef, ctx: JsContext<in JsNode>) {
if (x.qualifier == null && x.name in localVariables) {
@@ -266,8 +283,6 @@ fun JsBlock.replaceLocalVariables(scope: JsScope, context: CoroutineTransformati
else {
ctx.removeMe()
}
super.endVisit(x, ctx)
}
}
visitor.accept(this)
@@ -5601,6 +5601,12 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
doTest(fileName);
}
@TestMetadata("localCallableRef.kt")
public void testLocalCallableRef() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/coroutines/localCallableRef.kt");
doTest(fileName);
}
@TestMetadata("localDelegate.kt")
public void testLocalDelegate() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/coroutines/localDelegate.kt");