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Propagate uncertainty information to Evaluators (#886)
Co-authored-by: Wendland, Florian <[email protected]>
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...e-backends/cpg/src/main/kotlin/de/fraunhofer/aisec/codyze/backends/cpg/coko/dsl/Result.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| /* | ||
| * Copyright (c) 2024, Fraunhofer AISEC. All rights reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package de.fraunhofer.aisec.codyze.backends.cpg.coko.dsl | ||
|
|
||
| import de.fraunhofer.aisec.codyze.backends.cpg.coko.dsl.Result.* | ||
|
|
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| /** | ||
| * A data class that serves as a ternary value for the analysis result. | ||
| * | ||
| * OPEN is used where we cannot deduce either VALID or INVALID results because of lack of information. | ||
| */ | ||
| enum class Result { | ||
| VALID, | ||
| INVALID, | ||
| OPEN; | ||
|
|
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| companion object { | ||
| fun convert(from: Any?): Result { | ||
| return when (from) { | ||
| is Result -> from | ||
| is Boolean -> if (from) VALID else INVALID | ||
| else -> OPEN | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| /** returns VALID if all Results are VALID, otherwise returns OPEN if any result is OPEN, otherwise returns INVALID */ | ||
| fun <T> Iterable<T>.allResult(predicate: (T) -> Result?): Result { | ||
| var invalidFlag = false | ||
| for (element in this) { | ||
| if (predicate(element) == OPEN) { | ||
| return OPEN | ||
| } else if (predicate(element) == INVALID) { | ||
| invalidFlag = true | ||
| } | ||
| } | ||
| return if (invalidFlag) INVALID else VALID | ||
| } | ||
|
|
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| /** returns VALID if any Result is VALID, otherwise returns OPEN if any result is OPEN, otherwise returns INVALID */ | ||
| fun <T> Iterable<T>.anyResult(predicate: (T) -> Result?): Result { | ||
| var openFlag = false | ||
| for (element in this) { | ||
| if (predicate(element) == VALID) { | ||
| return VALID | ||
| } else if (predicate(element) == OPEN) { | ||
| openFlag = true | ||
| } | ||
| } | ||
| return if (openFlag) OPEN else INVALID | ||
| } | ||
|
|
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| /** returns VALID if all Results are VALID, otherwise returns OPEN if any result is OPEN, otherwise returns INVALID */ | ||
| fun <T> Array<T>.allResult(predicate: (T) -> Result?): Result { | ||
| return this.asIterable().allResult(predicate) | ||
| } | ||
|
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| /** returns VALID if any Result is VALID, otherwise returns OPEN if any result is OPEN, otherwise returns INVALID */ | ||
| fun <T> Array<T>.anyResult(predicate: (T) -> Result?): Result { | ||
| return this.asIterable().anyResult(predicate) | ||
| } | ||
|
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| /** precedence order for ternary and: OPEN > INVALID > VALID */ | ||
| fun Result.and(other: Result): Result { | ||
| return if (this == OPEN || other == OPEN) { | ||
| OPEN | ||
| } else if (this == INVALID || other == INVALID) { | ||
| INVALID | ||
| } else { | ||
| VALID | ||
| } | ||
| } |
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