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Enable caching of converted UElements for Kotlin

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This commit is contained in:
Dmitry Jemerov
2017-09-12 14:51:45 +02:00
parent cff6d8cf17
commit 91459bbd6a
1 changed files with 20 additions and 10 deletions
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plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinUastLanguagePlugin.kt
+20 -10
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@@ -40,6 +40,7 @@ import org.jetbrains.uast.kotlin.declarations.KotlinUMethod
import org.jetbrains.uast.kotlin.expressions.*
import org.jetbrains.uast.kotlin.psi.UastKotlinPsiParameter
import org.jetbrains.uast.kotlin.psi.UastKotlinPsiVariable
import java.lang.ref.WeakReference
interface KotlinUastBindingContextProviderService {
fun getBindingContext(element: KtElement): BindingContext
@@ -59,8 +60,7 @@ class KotlinUastLanguagePlugin : UastLanguagePlugin {
}
override fun convertElement(element: PsiElement, parent: UElement?, requiredType: Class<out UElement>?): UElement? {
return convertDeclaration(element, parent.toCallback(), requiredType)
?: KotlinConverter.convertPsiElement(element, parent.toCallback(), requiredType)
return convertDeclarationOrElement(element, parent.toCallback(), requiredType)
}
override fun convertElementWithParent(element: PsiElement, requiredType: Class<out UElement>?): UElement? {
@@ -78,8 +78,24 @@ class KotlinUastLanguagePlugin : UastLanguagePlugin {
else
return convertElementWithParent(parentUnwrapped, null)
}
return convertDeclaration(element, parentCallback, requiredType)
?: KotlinConverter.convertPsiElement(element, parentCallback, requiredType)
return convertDeclarationOrElement(element, parentCallback, requiredType)
}
private fun convertDeclarationOrElement(element: PsiElement, parentCallback: (() -> UElement?)?, requiredType: Class<out UElement>?): UElement? {
if (element is UElement) return element
if (element.isValid) {
element.getUserData(KOTLIN_CACHED_UELEMENT_KEY)?.get()?.let { cachedUElement ->
return if (requiredType == null || requiredType.isInstance(cachedUElement)) cachedUElement else null
}
}
val uElement = convertDeclaration(element, parentCallback, requiredType)
?: KotlinConverter.convertPsiElement(element, parentCallback, requiredType)
if (uElement != null) {
element.putUserData(KOTLIN_CACHED_UELEMENT_KEY, WeakReference(uElement))
}
return uElement
}
override fun getMethodCallExpression(
@@ -125,12 +141,6 @@ class KotlinUastLanguagePlugin : UastLanguagePlugin {
private fun convertDeclaration(element: PsiElement,
parentCallback: (() -> UElement?)?,
requiredType: Class<out UElement>?): UElement? {
if (element is UElement) return element
if (element.isValid) element.getUserData(KOTLIN_CACHED_UELEMENT_KEY)?.let { ref ->
ref.get()?.let { return it }
}
fun <P : PsiElement> build(ctor: (P, UElement?) -> UElement): () -> UElement? {
return fun(): UElement? {
val parent = if (parentCallback == null) null else (parentCallback() ?: return null)