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/*
* Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.cli.common.arguments
import com.intellij.util.xmlb.annotations.Transient
import org.jetbrains.kotlin.cli.common.messages.CompilerMessageSeverity
import org.jetbrains.kotlin.cli.common.messages.CompilerMessageSeverity.WARNING
import org.jetbrains.kotlin.cli.common.messages.MessageCollector
import org.jetbrains.kotlin.config.*
import org.jetbrains.kotlin.utils.IDEAPlatforms
import org.jetbrains.kotlin.utils.IDEAPluginsCompatibilityAPI
@SuppressWarnings("WeakerAccess")
abstract class CommonCompilerArguments : CommonToolArguments() {
companion object {
@JvmStatic
private val serialVersionUID = 0L
const val PLUGIN_OPTION_FORMAT = "plugin::="
const val PLUGIN_DECLARATION_FORMAT = "[==]"
const val WARN = "warn"
const val ERROR = "error"
const val ENABLE = "enable"
const val DEFAULT = "default"
}
@get:Transient
var autoAdvanceLanguageVersion = true
set(value) {
checkFrozen()
field = value
}
@GradleOption(
value = DefaultValue.LANGUAGE_VERSIONS,
gradleInputType = GradleInputTypes.INPUT,
shouldGenerateDeprecatedKotlinOptions = true,
)
@Argument(
value = "-language-version",
valueDescription = "",
description = "Provide source compatibility with the specified version of Kotlin."
)
var languageVersion: String? = null
set(value) {
checkFrozen()
field = if (value.isNullOrEmpty()) null else value
}
@get:Transient
var autoAdvanceApiVersion = true
set(value) {
checkFrozen()
field = value
}
@GradleOption(
value = DefaultValue.API_VERSIONS,
gradleInputType = GradleInputTypes.INPUT,
shouldGenerateDeprecatedKotlinOptions = true,
)
@Argument(
value = "-api-version",
valueDescription = "",
description = "Allow using declarations from only the specified version of bundled libraries."
)
var apiVersion: String? = null
set(value) {
checkFrozen()
field = if (value.isNullOrEmpty()) null else value
}
@Argument(
value = "-kotlin-home",
valueDescription = "",
description = "Path to the Kotlin compiler home directory used for the discovery of runtime libraries."
)
var kotlinHome: String? = null
set(value) {
checkFrozen()
field = if (value.isNullOrEmpty()) null else value
}
@GradleOption(
value = DefaultValue.BOOLEAN_FALSE_DEFAULT,
gradleInputType = GradleInputTypes.INPUT
)
@Argument(
value = "-progressive",
deprecatedName = "-Xprogressive",
description = """Enable progressive compiler mode.
In this mode, deprecations and bug fixes for unstable code take effect immediately
instead of going through a graceful migration cycle.
Code written in progressive mode is backward compatible; however, code written without
progressive mode enabled may cause compilation errors in progressive mode."""
)
var progressiveMode = false
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-script", description = "Evaluate the given Kotlin script (*.kts) file.")
var script = false
set(value) {
checkFrozen()
field = value
}
@GradleOption(
value = DefaultValue.EMPTY_STRING_ARRAY_DEFAULT,
gradleInputType = GradleInputTypes.INPUT
)
@Argument(
value = "-opt-in",
deprecatedName = "-Xopt-in",
valueDescription = "",
description = "Enable API usages that require opt-in with an opt-in requirement marker with the given fully qualified name."
)
var optIn: Array? = null
set(value) {
checkFrozen()
field = value
}
// Advanced options
@Argument(value = "-Xno-inline", description = "Disable method inlining.")
var noInline = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xskip-metadata-version-check",
description = "Allow loading classes with bad metadata versions and pre-release classes."
)
var skipMetadataVersionCheck = false
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xskip-prerelease-check", description = "Allow loading pre-release classes.")
var skipPrereleaseCheck = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xallow-kotlin-package",
description = "Allow compiling code in the 'kotlin' package, and allow not requiring 'kotlin.stdlib' in 'module-info'."
)
var allowKotlinPackage = false
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xreport-output-files", description = "Report the source-to-output file mapping.")
var reportOutputFiles = false
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xplugin", valueDescription = "", description = "Load plugins from the given classpath.")
var pluginClasspaths: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-P", valueDescription = PLUGIN_OPTION_FORMAT, description = "Pass an option to a plugin.")
var pluginOptions: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xcompiler-plugin",
valueDescription = ",:=,=",
description = "Register a compiler plugin.",
delimiter = Argument.Delimiters.none
)
var pluginConfigurations: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xmulti-platform", description = "Enable language support for multiplatform projects.")
var multiPlatform = false
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xno-check-actual", description = "Do not check for the presence of the 'actual' modifier in multiplatform projects.")
var noCheckActual = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xintellij-plugin-root",
valueDescription = "",
description = "Path to 'kotlin-compiler.jar' or the directory where the IntelliJ IDEA configuration files can be found."
)
var intellijPluginRoot: String? = null
set(value) {
checkFrozen()
field = if (value.isNullOrEmpty()) null else value
}
@Argument(
value = "-Xnew-inference",
description = "Enable the new experimental generic type inference algorithm."
)
var newInference = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xinline-classes",
description = "Enable experimental inline classes."
)
var inlineClasses = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xlegacy-smart-cast-after-try",
description = "Allow 'var' smart casts even in the presence of assignments in 'try' blocks."
)
var legacySmartCastAfterTry = false
set(value) {
checkFrozen()
field = value
}
@IDEAPluginsCompatibilityAPI(
IDEAPlatforms._212, // maybe 211 AS used it too
IDEAPlatforms._213,
message = "Please migrate to -opt-in",
plugins = "Android"
)
var experimental: Array? = null
@IDEAPluginsCompatibilityAPI(
IDEAPlatforms._212, // maybe 211 AS used it too
IDEAPlatforms._213,
message = "Please migrate to -opt-in",
plugins = "Android"
)
var useExperimental: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xreport-perf", description = "Report detailed performance statistics.")
var reportPerf = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xdump-perf",
valueDescription = "",
description = "Dump detailed performance statistics to the specified file."
)
var dumpPerf: String? = null
set(value) {
checkFrozen()
field = if (value.isNullOrEmpty()) null else value
}
@Argument(
value = "-Xmetadata-version",
description = "Change the metadata version of the generated binary files."
)
var metadataVersion: String? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xcommon-sources",
valueDescription = "",
description = """Sources of the common module that need to be compiled together with this module in multiplatform mode.
They should be a subset of sources passed as free arguments."""
)
var commonSources: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xlist-phases",
description = "List backend phases."
)
var listPhases = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xdisable-phases",
description = "Disable backend phases."
)
var disablePhases: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xverbose-phases",
description = "Be verbose while performing the given backend phases."
)
var verbosePhases: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xphases-to-dump-before",
description = "Dump the backend's state before these phases."
)
var phasesToDumpBefore: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xphases-to-dump-after",
description = "Dump the backend's state after these phases."
)
var phasesToDumpAfter: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xphases-to-dump",
description = "Dump the backend's state both before and after these phases."
)
var phasesToDump: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xdump-directory",
description = "Dump the backend state into this directory."
)
var dumpDirectory: String? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xdump-fqname",
description = "Dump the declaration with the given FqName."
)
var dumpOnlyFqName: String? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xphases-to-validate-before",
description = "Validate the backend's state before these phases."
)
var phasesToValidateBefore: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xphases-to-validate-after",
description = "Validate the backend's state after these phases."
)
var phasesToValidateAfter: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xphases-to-validate",
description = "Validate the backend's state both before and after these phases."
)
var phasesToValidate: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xprofile-phases",
description = "Profile backend phases."
)
var profilePhases = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xcheck-phase-conditions",
description = "Check pre- and postconditions of IR lowering phases."
)
var checkPhaseConditions = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xcheck-sticky-phase-conditions",
description = "Run sticky condition checks on subsequent phases. Implicitly enables '-Xcheck-phase-conditions'."
)
var checkStickyPhaseConditions = false
set(value) {
checkFrozen()
field = value
}
@GradleDeprecatedOption(
message = "Compiler flag -Xuse-k2 is deprecated; please use language version 2.0 instead",
level = DeprecationLevel.WARNING, // TODO: KT-65990 switch to ERROR in 2.1
removeAfter = LanguageVersion.KOTLIN_2_1,
)
@GradleOption(
DefaultValue.BOOLEAN_FALSE_DEFAULT,
gradleInputType = GradleInputTypes.INPUT,
shouldGenerateDeprecatedKotlinOptions = true,
)
@Argument(
value = "-Xuse-k2",
deprecatedName = "-Xuse-fir",
description = "Compile using the experimental K2 compiler pipeline. No compatibility guarantees are provided yet."
)
var useK2 = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xuse-fir-extended-checkers",
description = "Use extended analysis mode based on the frontend IR.\nWarning: This feature is not yet production-ready."
)
var useFirExtendedCheckers = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xuse-fir-ic",
description = "Compile using frontend IR internal incremental compilation.\nWarning: This feature is not yet production-ready."
)
var useFirIC = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xuse-fir-lt",
description = "Compile using the LightTree parser with the frontend IR."
)
var useFirLT = true
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xuse-fir-fake-override-builder",
description = "Generate all fake overrides via FIR2IR instead of IR, i.e. revert to behavior before KT-61514 was resolved."
)
var useFirFakeOverrideBuilder = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xmetadata-klib",
description = "Produce a klib that only contains the metadata of declarations.",
deprecatedName = "-Xexpect-actual-linker"
)
var metadataKlib: Boolean = false
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xdisable-default-scripting-plugin", description = "Don't enable the scripting plugin by default.")
var disableDefaultScriptingPlugin = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xexplicit-api",
valueDescription = "{strict|warning|disable}",
description = """Force the compiler to report errors on all public API declarations without an explicit visibility or a return type.
Use the 'warning' level to issue warnings instead of errors."""
)
var explicitApi: String = ExplicitApiMode.DISABLED.state
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xinference-compatibility",
description = "Enable compatibility changes for the generic type inference algorithm."
)
var inferenceCompatibility = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xsuppress-version-warnings",
description = "Suppress warnings about outdated, inconsistent, or experimental language or API versions."
)
var suppressVersionWarnings = false
set(value) {
checkFrozen()
field = value
}
// TODO(KT-56076): remove this argument after stdlib started to be built with 2.0
@Argument(
value = "-Xsuppress-api-version-greater-than-language-version-error",
description = "Suppress error about API version greater than language version.\n" +
"Warning: This is temporary solution (see KT-63712) intended to be used only for stdlib build."
)
var suppressApiVersionGreaterThanLanguageVersionError: Boolean = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xextended-compiler-checks",
description = """Enable additional compiler checks that might provide verbose diagnostic information for certain errors.
Warning: This mode is not backward compatible and might cause compilation errors in previously compiled code."""
)
var extendedCompilerChecks = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xexpect-actual-classes",
description = """'expect'/'actual' classes (including interfaces, objects, annotations, enums, and 'actual' typealiases) are in Beta.
Kotlin reports a warning every time you use one of them. You can use this flag to mute the warning."""
)
var expectActualClasses = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xunrestricted-builder-inference",
description = "Eliminate builder inference restrictions, for example by allowing type variables to be returned from builder inference calls."
)
var unrestrictedBuilderInference = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xenable-builder-inference",
description = """Use builder inference by default for all calls with lambdas that can't be resolved without it.
The corresponding calls' declarations may not be marked with @BuilderInference."""
)
var enableBuilderInference = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xself-upper-bound-inference",
description = "Support inferring type arguments from the self-type upper bounds of the corresponding type parameters."
)
var selfUpperBoundInference = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xcontext-receivers",
description = "Enable experimental context receivers."
)
var contextReceivers = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xklib-relative-path-base",
description = "Provide a base path to compute the source's relative paths in klib (default is empty)."
)
var relativePathBases: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xklib-normalize-absolute-path",
description = "Normalize absolute paths in klibs."
)
var normalizeAbsolutePath = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xklib-enable-signature-clash-checks",
description = "Enable signature uniqueness checks."
)
var enableSignatureClashChecks = true
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xenable-incremental-compilation", description = "Enable incremental compilation.")
var incrementalCompilation: Boolean? = null
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xrender-internal-diagnostic-names", description = "Render the internal names of warnings and errors.")
var renderInternalDiagnosticNames = false
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xallow-any-scripts-in-source-roots", description = "Allow compiling scripts along with regular Kotlin sources.")
var allowAnyScriptsInSourceRoots = false
set(value) {
checkFrozen()
field = value
}
@Argument(value = "-Xreport-all-warnings", description = "Report all warnings even if errors are found.")
var reportAllWarnings = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xfragments",
valueDescription = "",
description = "Declare all known fragments of a multiplatform compilation."
)
var fragments: Array? = null
@Argument(
value = "-Xfragment-sources",
valueDescription = ":",
description = "Add sources to a specific fragment of a multiplatform compilation.",
)
var fragmentSources: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xfragment-refines",
valueDescription = ":",
description = "Declare that refines with the dependsOn/refines relation.",
)
var fragmentRefines: Array? = null
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xignore-const-optimization-errors",
description = "Ignore all compilation exceptions while optimizing some constant expressions."
)
var ignoreConstOptimizationErrors = false
set(value) {
checkFrozen()
field = value
}
@Argument(
value = "-Xdont-warn-on-error-suppression",
description = "Don't report warnings when errors are suppressed. This only affects K2."
)
var dontWarnOnErrorSuppression = false
set(value) {
checkFrozen()
field = value
}
@OptIn(IDEAPluginsCompatibilityAPI::class)
open fun configureAnalysisFlags(collector: MessageCollector, languageVersion: LanguageVersion): MutableMap, Any> {
return HashMap, Any>().apply {
put(AnalysisFlags.skipMetadataVersionCheck, skipMetadataVersionCheck)
put(AnalysisFlags.skipPrereleaseCheck, skipPrereleaseCheck || skipMetadataVersionCheck)
put(AnalysisFlags.multiPlatformDoNotCheckActual, noCheckActual)
val useExperimentalFqNames = useExperimental?.toList().orEmpty()
if (useExperimentalFqNames.isNotEmpty()) {
collector.report(
WARNING, "'-Xuse-experimental' is deprecated and will be removed in a future release, please use -opt-in instead"
)
}
put(AnalysisFlags.optIn, useExperimentalFqNames + optIn?.toList().orEmpty())
put(AnalysisFlags.skipExpectedActualDeclarationChecker, metadataKlib)
put(AnalysisFlags.explicitApiVersion, apiVersion != null)
ExplicitApiMode.fromString(explicitApi)?.also { put(AnalysisFlags.explicitApiMode, it) } ?: collector.report(
CompilerMessageSeverity.ERROR,
"Unknown value for parameter -Xexplicit-api: '$explicitApi'. Value should be one of ${ExplicitApiMode.availableValues()}"
)
put(AnalysisFlags.extendedCompilerChecks, extendedCompilerChecks)
put(AnalysisFlags.allowKotlinPackage, allowKotlinPackage)
put(AnalysisFlags.muteExpectActualClassesWarning, expectActualClasses)
put(AnalysisFlags.allowFullyQualifiedNameInKClass, true)
put(AnalysisFlags.dontWarnOnErrorSuppression, dontWarnOnErrorSuppression)
}
}
open fun configureLanguageFeatures(collector: MessageCollector): MutableMap =
HashMap().apply {
if (multiPlatform) {
put(LanguageFeature.MultiPlatformProjects, LanguageFeature.State.ENABLED)
}
if (unrestrictedBuilderInference) {
put(LanguageFeature.UnrestrictedBuilderInference, LanguageFeature.State.ENABLED)
}
if (enableBuilderInference) {
put(LanguageFeature.UseBuilderInferenceWithoutAnnotation, LanguageFeature.State.ENABLED)
}
if (selfUpperBoundInference) {
put(LanguageFeature.TypeInferenceOnCallsWithSelfTypes, LanguageFeature.State.ENABLED)
}
if (newInference) {
put(LanguageFeature.NewInference, LanguageFeature.State.ENABLED)
put(LanguageFeature.SamConversionPerArgument, LanguageFeature.State.ENABLED)
put(LanguageFeature.FunctionReferenceWithDefaultValueAsOtherType, LanguageFeature.State.ENABLED)
put(LanguageFeature.DisableCompatibilityModeForNewInference, LanguageFeature.State.ENABLED)
}
if (contextReceivers) {
put(LanguageFeature.ContextReceivers, LanguageFeature.State.ENABLED)
}
if (inlineClasses) {
put(LanguageFeature.InlineClasses, LanguageFeature.State.ENABLED)
}
if (legacySmartCastAfterTry) {
put(LanguageFeature.SoundSmartCastsAfterTry, LanguageFeature.State.DISABLED)
}
if (inferenceCompatibility) {
put(LanguageFeature.InferenceCompatibility, LanguageFeature.State.ENABLED)
}
if (progressiveMode) {
LanguageFeature.entries.filter { it.enabledInProgressiveMode }.forEach {
// Don't overwrite other settings: users may want to turn off some particular
// breaking change manually instead of turning off whole progressive mode
if (!contains(it)) put(it, LanguageFeature.State.ENABLED)
}
}
if (useK2) {
// TODO: remove when K2 compilation will mean LV 2.0
put(LanguageFeature.SkipStandaloneScriptsInSourceRoots, LanguageFeature.State.ENABLED)
} else if (allowAnyScriptsInSourceRoots) {
put(LanguageFeature.SkipStandaloneScriptsInSourceRoots, LanguageFeature.State.DISABLED)
}
// Internal arguments should go last, because it may be useful to override
// some feature state via -XX (even if some -X flags were passed)
if (internalArguments.isNotEmpty()) {
configureLanguageFeaturesFromInternalArgs(collector)
}
configureExtraLanguageFeatures(this)
}
protected open fun configureExtraLanguageFeatures(map: HashMap) {}
private fun HashMap.configureLanguageFeaturesFromInternalArgs(collector: MessageCollector) {
val featuresThatForcePreReleaseBinaries = mutableListOf()
val disabledFeaturesFromUnsupportedVersions = mutableListOf()
var standaloneSamConversionFeaturePassedExplicitly = false
var functionReferenceWithDefaultValueFeaturePassedExplicitly = false
for ((feature, state) in internalArguments.filterIsInstance()) {
put(feature, state)
if (state == LanguageFeature.State.ENABLED && feature.forcesPreReleaseBinariesIfEnabled()) {
featuresThatForcePreReleaseBinaries += feature
}
if (state == LanguageFeature.State.DISABLED && feature.sinceVersion?.isUnsupported == true) {
disabledFeaturesFromUnsupportedVersions += feature
}
when (feature) {
LanguageFeature.SamConversionPerArgument ->
standaloneSamConversionFeaturePassedExplicitly = true
LanguageFeature.FunctionReferenceWithDefaultValueAsOtherType ->
functionReferenceWithDefaultValueFeaturePassedExplicitly = true
else -> {}
}
}
if (this[LanguageFeature.NewInference] == LanguageFeature.State.ENABLED) {
if (!standaloneSamConversionFeaturePassedExplicitly)
put(LanguageFeature.SamConversionPerArgument, LanguageFeature.State.ENABLED)
if (!functionReferenceWithDefaultValueFeaturePassedExplicitly)
put(LanguageFeature.FunctionReferenceWithDefaultValueAsOtherType, LanguageFeature.State.ENABLED)
put(LanguageFeature.DisableCompatibilityModeForNewInference, LanguageFeature.State.ENABLED)
}
if (featuresThatForcePreReleaseBinaries.isNotEmpty()) {
collector.report(
CompilerMessageSeverity.STRONG_WARNING,
"Following manually enabled features will force generation of pre-release binaries: ${featuresThatForcePreReleaseBinaries.joinToString()}"
)
}
if (disabledFeaturesFromUnsupportedVersions.isNotEmpty()) {
collector.report(
CompilerMessageSeverity.ERROR,
"The following features cannot be disabled manually, because the version they first appeared in is no longer " +
"supported:\n${disabledFeaturesFromUnsupportedVersions.joinToString()}"
)
}
}
fun toLanguageVersionSettings(collector: MessageCollector): LanguageVersionSettings {
return toLanguageVersionSettings(collector, emptyMap())
}
fun toLanguageVersionSettings(
collector: MessageCollector,
additionalAnalysisFlags: Map, Any>
): LanguageVersionSettings {
val languageVersion = parseOrConfigureLanguageVersion(collector)
// If only "-language-version" is specified, API version is assumed to be equal to the language version
// (API version cannot be greater than the language version)
val apiVersion = ApiVersion.createByLanguageVersion(parseVersion(collector, apiVersion, "API") ?: languageVersion)
checkApiVersionIsNotGreaterThenLanguageVersion(languageVersion, apiVersion, collector)
val languageVersionSettings = LanguageVersionSettingsImpl(
languageVersion,
apiVersion,
configureAnalysisFlags(collector, languageVersion) + additionalAnalysisFlags,
configureLanguageFeatures(collector)
)
checkLanguageVersionIsStable(languageVersion, collector)
checkOutdatedVersions(languageVersion, apiVersion, collector)
checkProgressiveMode(languageVersion, collector)
checkIrSupport(languageVersionSettings, collector)
checkPlatformSpecificSettings(languageVersionSettings, collector)
return languageVersionSettings
}
private fun checkApiVersionIsNotGreaterThenLanguageVersion(
languageVersion: LanguageVersion,
apiVersion: ApiVersion,
collector: MessageCollector
) {
if (apiVersion > ApiVersion.createByLanguageVersion(languageVersion)) {
if (!suppressApiVersionGreaterThanLanguageVersionError) {
collector.report(
CompilerMessageSeverity.ERROR,
"-api-version (${apiVersion.versionString}) cannot be greater than -language-version (${languageVersion.versionString})"
)
}
} else if (suppressApiVersionGreaterThanLanguageVersionError) {
collector.report(WARNING, "Useless suppress -Xsuppress-api-version-greater-than-language-version-error")
}
}
fun checkLanguageVersionIsStable(languageVersion: LanguageVersion, collector: MessageCollector) {
if (!languageVersion.isStable && !suppressVersionWarnings) {
collector.report(
CompilerMessageSeverity.STRONG_WARNING,
"Language version ${languageVersion.versionString} is experimental, there are no backwards compatibility guarantees for " +
"new language and library features"
)
}
}
private fun checkOutdatedVersions(language: LanguageVersion, api: ApiVersion, collector: MessageCollector) {
val (version, supportedVersion, versionKind) = findOutdatedVersion(language, api) ?: return
when {
version.isUnsupported -> {
collector.report(
CompilerMessageSeverity.ERROR,
"${versionKind.text} version ${version.versionString} is no longer supported; " +
"please, use version ${supportedVersion!!.versionString} or greater."
)
}
version.isDeprecated && !suppressVersionWarnings -> {
collector.report(
CompilerMessageSeverity.STRONG_WARNING,
"${versionKind.text} version ${version.versionString} is deprecated " +
"and its support will be removed in a future version of Kotlin"
)
}
}
}
private fun findOutdatedVersion(
language: LanguageVersion,
api: ApiVersion
): Triple? {
return when {
language.isUnsupported -> Triple(language, LanguageVersion.FIRST_SUPPORTED, VersionKind.LANGUAGE)
api.isUnsupported -> Triple(api, ApiVersion.FIRST_SUPPORTED, VersionKind.API)
language.isDeprecated -> Triple(language, null, VersionKind.LANGUAGE)
api.isDeprecated -> Triple(api, null, VersionKind.API)
else -> null
}
}
private fun checkProgressiveMode(languageVersion: LanguageVersion, collector: MessageCollector) {
if (progressiveMode && languageVersion < LanguageVersion.LATEST_STABLE && !suppressVersionWarnings) {
collector.report(
CompilerMessageSeverity.STRONG_WARNING,
"'-progressive' is meaningful only for the latest language version (${LanguageVersion.LATEST_STABLE}), " +
"while this build uses $languageVersion\n" +
"Compiler behavior in such mode is undefined; please, consider moving to the latest stable version " +
"or turning off progressive mode."
)
}
}
protected open fun defaultLanguageVersion(collector: MessageCollector): LanguageVersion =
LanguageVersion.LATEST_STABLE
protected open fun checkPlatformSpecificSettings(languageVersionSettings: LanguageVersionSettings, collector: MessageCollector) {
}
protected open fun checkIrSupport(languageVersionSettings: LanguageVersionSettings, collector: MessageCollector) {
// backend-specific
}
private enum class VersionKind(val text: String) {
LANGUAGE("Language"), API("API")
}
private fun parseOrConfigureLanguageVersion(collector: MessageCollector): LanguageVersion {
// If only "-api-version" is specified, language version is assumed to be the latest stable (or 2.0 with -Xuse-k2)
val explicitVersion = parseVersion(collector, languageVersion, "language")
val explicitOrDefaultVersion = explicitVersion ?: defaultLanguageVersion(collector)
if (useK2) {
val message = when (explicitVersion?.usesK2) {
true ->
"Deprecated compiler flag -Xuse-k2 is redundant because of \"-language-version $explicitVersion\" and should be removed"
false ->
"Deprecated compiler flag -Xuse-k2 overrides \"-language-version $explicitVersion\" to 2.0;" +
" please remove -Xuse-k2 and use -language-version to select either $explicitVersion or 2.0"
null ->
"Compiler flag -Xuse-k2 is deprecated; please use \"-language-version 2.0\" instead"
}
collector.report(CompilerMessageSeverity.STRONG_WARNING, message)
}
return if (useK2 && !explicitOrDefaultVersion.usesK2) LanguageVersion.KOTLIN_2_0
else explicitOrDefaultVersion
}
private fun parseVersion(collector: MessageCollector, value: String?, versionOf: String): LanguageVersion? =
if (value == null) null
else LanguageVersion.fromVersionString(value)
?: run {
val versionStrings = LanguageVersion.entries.filterNot(LanguageVersion::isUnsupported).map(LanguageVersion::description)
val message = "Unknown $versionOf version: $value\nSupported $versionOf versions: ${versionStrings.joinToString(", ")}"
collector.report(CompilerMessageSeverity.ERROR, message, null)
null
}
// Used only for serialize and deserialize settings. Don't use in other places!
class DummyImpl : CommonCompilerArguments() {
override fun copyOf(): Freezable = copyCommonCompilerArguments(this, DummyImpl())
}
}
