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Refactor FileScopeFactory

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This commit is contained in:
Pavel V. Talanov
2017-03-01 18:24:13 +03:00
parent d7c1993194
commit 6f6a595fef
1 changed files with 71 additions and 59 deletions
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compiler/frontend/src/org/jetbrains/kotlin/resolve/lazy/FileScopeFactory.kt
+71 -59
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@@ -54,15 +54,12 @@ class FileScopeFactory(
private val defaultImportProvider: DefaultImportProvider,
private val languageVersionSettings: LanguageVersionSettings
) {
/* avoid constructing psi for default imports prematurely (time consuming in some scenarios) */
private val defaultImports by storageManager.createLazyValue {
ktImportsFactory.createImportDirectives(defaultImportProvider.defaultImports)
}
fun createScopesForFile(file: KtFile, existingImports: ImportingScope? = null): FileScopes {
infix fun <T> Collection<T>.concat(other: Collection<T>?) =
if (other == null || other.isEmpty()) this else this + other
val packageView = moduleDescriptor.getPackage(file.packageFqName)
val packageFragment = topLevelDescriptorProvider.getPackageFragment(file.packageFqName)
if (packageFragment == null) {
@@ -71,74 +68,30 @@ class FileScopeFactory(
error("Could not find fragment ${file.packageFqName} for file ${file.name}")
}
return FilesScopesBuilder(file, existingImports, packageFragment, packageView).result
}
private inner class FilesScopesBuilder(
private val file: KtFile,
private val existingImports: ImportingScope?,
private val packageFragment: PackageFragmentDescriptor,
private val packageView: PackageViewDescriptor
) {
val imports = file.importDirectives
val aliasImportNames = imports.mapNotNull { if (it.aliasName != null) it.importedFqName else null }
fun createImportResolver(indexedImports: IndexedImports, trace: BindingTrace, excludedImports: List<FqName>? = null) =
LazyImportResolver(
storageManager, qualifiedExpressionResolver, moduleDescriptor, platformToKotlinClassMap, languageVersionSettings,
indexedImports, aliasImportNames concat excludedImports, trace, packageFragment
)
val explicitImportResolver = createImportResolver(ExplicitImportsIndexed(imports), bindingTrace)
val allUnderImportResolver = createImportResolver(AllUnderImportsIndexed(imports), bindingTrace) // TODO: should we count excludedImports here also?
val lazyImportingScope = object : ImportingScope by ImportingScope.Empty {
// avoid constructing the scope before we query it
override val parent: ImportingScope by storageManager.createLazyValue {
val tempTrace = TemporaryBindingTrace.create(bindingTrace, "Transient trace for default imports lazy resolve", false)
val extraImports = file.originalFile.virtualFile?.let { vFile ->
val scriptExternalDependencies = getScriptExternalDependencies(vFile, file.project)
ktImportsFactory.createImportDirectives(scriptExternalDependencies?.imports?.map { ImportPath.fromString(it) }.orEmpty())
}
val allImplicitImports = defaultImports concat extraImports
val defaultImportsFiltered = if (aliasImportNames.isEmpty()) { // optimization
allImplicitImports
}
else {
allImplicitImports.filter { it.isAllUnder || it.importedFqName !in aliasImportNames }
}
val defaultExplicitImportResolver = createImportResolver(ExplicitImportsIndexed(defaultImportsFiltered), tempTrace)
val defaultAllUnderImportResolver = createImportResolver(AllUnderImportsIndexed(defaultImportsFiltered), tempTrace, defaultImportProvider.excludedImports)
val dummyContainerDescriptor = DummyContainerDescriptor(file, packageFragment)
var scope: ImportingScope
val debugName = "LazyFileScope for file " + file.name
scope = LazyImportScope(existingImports, defaultAllUnderImportResolver, LazyImportScope.FilteringKind.INVISIBLE_CLASSES,
"Default all under imports in $debugName (invisible classes only)")
scope = LazyImportScope(scope, allUnderImportResolver, LazyImportScope.FilteringKind.INVISIBLE_CLASSES,
"All under imports in $debugName (invisible classes only)")
scope = currentPackageScope(packageView, aliasImportNames, dummyContainerDescriptor, FilteringKind.INVISIBLE_CLASSES, scope)
scope = LazyImportScope(scope, defaultAllUnderImportResolver, LazyImportScope.FilteringKind.VISIBLE_CLASSES,
"Default all under imports in $debugName (visible classes)")
scope = LazyImportScope(scope, allUnderImportResolver, LazyImportScope.FilteringKind.VISIBLE_CLASSES,
"All under imports in $debugName (visible classes)")
scope = LazyImportScope(scope, defaultExplicitImportResolver, LazyImportScope.FilteringKind.ALL,
"Default explicit imports in $debugName")
scope = SubpackagesImportingScope(scope, moduleDescriptor, FqName.ROOT)
scope = currentPackageScope(packageView, aliasImportNames, dummyContainerDescriptor, FilteringKind.VISIBLE_CLASSES, scope)
LazyImportScope(scope, explicitImportResolver, LazyImportScope.FilteringKind.ALL, "Explicit imports in $debugName")
createImportingScope()
}
}
val lexicalScope = LexicalScope.Empty(lazyImportingScope, topLevelDescriptorProvider.getPackageFragment(file.packageFqName)!!)
val importResolver = object : ImportResolver {
override fun forceResolveAllImports() {
explicitImportResolver.forceResolveAllImports()
@@ -155,7 +108,66 @@ class FileScopeFactory(
}
}
return FileScopes(lexicalScope, lazyImportingScope, importResolver)
val result = FileScopes(lexicalScope, lazyImportingScope, importResolver)
fun createImportResolver(indexedImports: IndexedImports, trace: BindingTrace, excludedImports: List<FqName>? = null) =
LazyImportResolver(
storageManager, qualifiedExpressionResolver, moduleDescriptor, platformToKotlinClassMap, languageVersionSettings,
indexedImports, aliasImportNames concat excludedImports, trace, packageFragment
)
fun createImportingScope(): LazyImportScope {
val tempTrace = TemporaryBindingTrace.create(bindingTrace, "Transient trace for default imports lazy resolve", false)
val extraImports = file.originalFile.virtualFile?.let { vFile ->
val scriptExternalDependencies = getScriptExternalDependencies(vFile, file.project)
ktImportsFactory.createImportDirectives(scriptExternalDependencies?.imports?.map { ImportPath.fromString(it) }.orEmpty())
}
val allImplicitImports = defaultImports concat extraImports
val defaultImportsFiltered = if (aliasImportNames.isEmpty()) { // optimization
allImplicitImports
}
else {
allImplicitImports.filter { it.isAllUnder || it.importedFqName !in aliasImportNames }
}
val defaultExplicitImportResolver = createImportResolver(ExplicitImportsIndexed(defaultImportsFiltered), tempTrace)
val defaultAllUnderImportResolver = createImportResolver(AllUnderImportsIndexed(defaultImportsFiltered), tempTrace, defaultImportProvider.excludedImports)
val dummyContainerDescriptor = DummyContainerDescriptor(file, packageFragment)
var scope: ImportingScope
val debugName = "LazyFileScope for file " + file.name
scope = LazyImportScope(existingImports, defaultAllUnderImportResolver, LazyImportScope.FilteringKind.INVISIBLE_CLASSES,
"Default all under imports in $debugName (invisible classes only)")
scope = LazyImportScope(scope, allUnderImportResolver, LazyImportScope.FilteringKind.INVISIBLE_CLASSES,
"All under imports in $debugName (invisible classes only)")
scope = currentPackageScope(packageView, aliasImportNames, dummyContainerDescriptor, FilteringKind.INVISIBLE_CLASSES, scope)
scope = LazyImportScope(scope, defaultAllUnderImportResolver, LazyImportScope.FilteringKind.VISIBLE_CLASSES,
"Default all under imports in $debugName (visible classes)")
scope = LazyImportScope(scope, allUnderImportResolver, LazyImportScope.FilteringKind.VISIBLE_CLASSES,
"All under imports in $debugName (visible classes)")
scope = LazyImportScope(scope, defaultExplicitImportResolver, LazyImportScope.FilteringKind.ALL,
"Default explicit imports in $debugName")
scope = SubpackagesImportingScope(scope, moduleDescriptor, FqName.ROOT)
scope = currentPackageScope(packageView, aliasImportNames, dummyContainerDescriptor, FilteringKind.VISIBLE_CLASSES, scope)
return LazyImportScope(scope, explicitImportResolver, LazyImportScope.FilteringKind.ALL, "Explicit imports in $debugName")
}
private infix fun <T> Collection<T>.concat(other: Collection<T>?) =
if (other == null || other.isEmpty()) this else this + other
}
private enum class FilteringKind {