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Add type names filtering for integration classes
Fixes #363
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103 changes: 103 additions & 0 deletions
103
jupyter-lib/api/src/main/kotlin/org/jetbrains/kotlinx/jupyter/util/acceptanceRules.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| package org.jetbrains.kotlinx.jupyter.util | ||
|
|
||
| import kotlinx.serialization.Serializable | ||
| import org.jetbrains.kotlinx.jupyter.api.TypeName | ||
| import org.jetbrains.kotlinx.jupyter.api.libraries.VariablesSubstitutionAware | ||
|
|
||
| /** | ||
| * Acceptance rule either says it accepts object or delegates it to some other rule returning null | ||
| */ | ||
| fun interface AcceptanceRule<T> { | ||
| fun accepts(obj: T): Boolean? | ||
| } | ||
|
|
||
| /** | ||
| * Acceptance rule that has only two answers: yes/no (depending on the [acceptsFlag]) and "don't know" | ||
| */ | ||
| interface FlagAcceptanceRule<T> : AcceptanceRule<T> { | ||
| val acceptsFlag: Boolean | ||
| fun appliesTo(obj: T): Boolean | ||
|
|
||
| override fun accepts(obj: T): Boolean? { | ||
| return if (appliesTo(obj)) acceptsFlag else null | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Acceptance rule for type names | ||
| */ | ||
| class NameAcceptanceRule( | ||
| override val acceptsFlag: Boolean, | ||
| private val appliesPredicate: (TypeName) -> Boolean | ||
| ) : FlagAcceptanceRule<TypeName> { | ||
| override fun appliesTo(obj: TypeName): Boolean { | ||
| return appliesPredicate(obj) | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Acceptance rule for type names based on [pattern]. | ||
| * Pattern may consist of any characters and of 3 special combinations: | ||
| * 1) `?` - any single character or no character | ||
| * 2) `*` - any character sequence excluding dot (`.`) | ||
| * 3) `**` - any character sequence | ||
| * | ||
| * For example, pattern `org.jetbrains.kotlin?.**.jupyter.*` matches following names: | ||
| * - `org.jetbrains.kotlin.my.package.jupyter.Integration` | ||
| * - `org.jetbrains.kotlinx.some_package.jupyter.SomeClass` | ||
| * | ||
| * It doesn't match name `org.jetbrains.kotlin.my.package.jupyter.integration.MyClass` | ||
| */ | ||
| @Serializable(PatternNameAcceptanceRuleSerializer::class) | ||
| class PatternNameAcceptanceRule( | ||
| override val acceptsFlag: Boolean, | ||
| val pattern: String, | ||
| ) : FlagAcceptanceRule<TypeName>, VariablesSubstitutionAware<PatternNameAcceptanceRule> { | ||
| private val regex by lazy { | ||
| buildString { | ||
| var i = 0 | ||
| while (i < pattern.length) { | ||
| val c = pattern[i] | ||
| val nextC = pattern.getOrNull(i + 1) | ||
|
|
||
| when (c) { | ||
| '.' -> append("\\.") | ||
| '*' -> when (nextC) { | ||
| '*' -> { | ||
| append(".*") | ||
| ++i | ||
| } | ||
| else -> append("[^.]*") | ||
| } | ||
| '?' -> append(".?") | ||
| '[', ']', '(', ')', '{', '}', '\\', '$', '^', '+', '|' -> { | ||
| append('\\') | ||
| append(c) | ||
| } | ||
| else -> append(c) | ||
| } | ||
| ++i | ||
| } | ||
| }.toRegex() | ||
| } | ||
|
|
||
| override fun appliesTo(obj: TypeName): Boolean { | ||
| return regex.matches(obj) | ||
| } | ||
|
|
||
| override fun replaceVariables(mapping: Map<String, String>): PatternNameAcceptanceRule { | ||
| val newPattern = replaceVariables(pattern, mapping) | ||
| if (pattern == newPattern) return this | ||
| return PatternNameAcceptanceRule(acceptsFlag, newPattern) | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * List of acceptance rules: | ||
| * 1) accepts [obj] if latest not-null acceptance result is `true` | ||
| * 2) doesn't accept [obj] if latest not-null acceptance result is `false` | ||
| * 3) returns `null` if all acceptance results are `null` or the iterable is empty | ||
| */ | ||
| fun <T> Iterable<AcceptanceRule<T>>.accepts(obj: T): Boolean? { | ||
| return mapNotNull { it.accepts(obj) }.lastOrNull() | ||
| } |
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