├── .gitignore ├── LICENSE ├── README.md ├── build.gradle ├── checked-exceptions.png ├── checks ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── main │ ├── java │ │ └── com │ │ │ └── thirdegg │ │ │ └── lintrules │ │ │ └── android │ │ │ ├── CheckedExceptionsDetector.kt │ │ │ └── LintRulesRegistry.kt │ └── resources │ │ └── META-INF │ │ └── services │ │ └── com.android.tools.lint.client.api.IssueRegistry │ └── test │ └── java │ └── com │ └── thirdegg │ └── lintrules │ └── android │ ├── Utils.kt │ └── testcases │ ├── SimpleTestCase.kt │ ├── StdJavaTestCase.kt │ ├── SuperCatchThrowsTestCase.kt │ ├── ThrowsInThrowsSecondTestCase.kt │ ├── ThrowsInThrowsTestCase.kt │ ├── ThrowsInterfacesTestCase.kt │ ├── ThrowsTestCase.kt │ └── WithJavaTestCase.kt ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── jitpack.yml ├── library ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ └── AndroidManifest.xml └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea 5 | .DS_Store 6 | /build 7 | /captures 8 | .externalNativeBuild 9 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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In order for the changes to work, you need to do `Build > Clear Project` and rebuild the project. 28 | 29 | ## Checked Exceptions for kotlin 30 | How it works: 31 | 32 | ![](checked-exceptions.png) 33 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | buildscript { 2 | ext { 3 | kotlin_version = '1.5.30' 4 | lint_api_version = '30.0.2' 5 | } 6 | 7 | repositories { 8 | mavenCentral() 9 | google() 10 | jcenter() 11 | } 12 | dependencies { 13 | classpath 'com.android.tools.build:gradle:7.0.2' 14 | classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" 15 | } 16 | } 17 | 18 | allprojects { 19 | repositories { 20 | mavenCentral() 21 | google() 22 | jcenter() 23 | } 24 | } 25 | 26 | task clean(type: Delete) { 27 | delete rootProject.buildDir 28 | } -------------------------------------------------------------------------------- /checked-exceptions.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/thirdegg/lint-rules/d1fd20ec2eba13433500431f941706ac12fdcde5/checked-exceptions.png -------------------------------------------------------------------------------- /checks/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /checks/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'java-library' 2 | apply plugin: 'kotlin' 3 | apply plugin: 'com.android.lint' 4 | 5 | dependencies { 6 | // For a description of the below dependencies, see the main project README 7 | compileOnly "com.android.tools.lint:lint-api:$lint_api_version" 8 | // You typically don't need this one: 9 | compileOnly "com.android.tools.lint:lint-checks:$lint_api_version" 10 | compileOnly "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version" 11 | 12 | testImplementation "junit:junit:4.13.2" 13 | testImplementation "com.android.tools.lint:lint:$lint_api_version" 14 | testImplementation "com.android.tools.lint:lint-tests:$lint_api_version" 15 | } 16 | 17 | sourceCompatibility = "1.8" 18 | targetCompatibility = "1.8" -------------------------------------------------------------------------------- /checks/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /checks/src/main/java/com/thirdegg/lintrules/android/CheckedExceptionsDetector.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android 2 | 3 | import com.android.tools.lint.client.api.UElementHandler 4 | import com.android.tools.lint.detector.api.* 5 | import com.android.tools.lint.detector.api.Category.Companion.CORRECTNESS 6 | import com.android.tools.lint.detector.api.Severity.WARNING 7 | import com.intellij.psi.PsiElement 8 | import com.intellij.psi.PsiType 9 | import org.jetbrains.uast.* 10 | import java.util.* 11 | import kotlin.collections.ArrayList 12 | import kotlin.collections.HashMap 13 | import kotlin.collections.HashSet 14 | 15 | class CheckedExceptionsDetector : Detector(), Detector.UastScanner { 16 | 17 | override fun getApplicableUastTypes() = listOf>(UCallExpression::class.java) 18 | 19 | fun findChildsInPsi(item: PsiElement): ArrayList { 20 | val list = ArrayList() 21 | for (child in item.children) { 22 | list.add(child) 23 | if (child.children.isNotEmpty()) { 24 | list.addAll(findChildsInPsi(child)) 25 | } 26 | } 27 | return list 28 | } 29 | 30 | fun findClassParents(psiClass: PsiType):HashSet { 31 | val classes = HashSet() 32 | classes.add(psiClass.canonicalText) 33 | psiClass.superTypes.forEach { 34 | classes.addAll(findClassParents(it)) 35 | } 36 | return classes 37 | } 38 | 39 | fun findNamedExpressionsInAnnotation(uAnnotation: UAnnotation): HashSet { 40 | val namedExpressions = HashSet() 41 | for (uNamedExpression in uAnnotation.attributeValues) { 42 | if (uNamedExpression.expression is UClassLiteralExpression) { 43 | // If UClassLiteralExpression.type.canonicalText is null then maybe no import of Exception 44 | (uNamedExpression.expression as UClassLiteralExpression).type?.let { 45 | namedExpressions.add(it) 46 | } 47 | continue 48 | } 49 | if (uNamedExpression.expression is UCallExpression) { 50 | for (argument in (uNamedExpression.expression as UCallExpression).valueArguments) { 51 | if (argument is UClassLiteralExpression) { 52 | argument.type?.let { 53 | namedExpressions.add(it) 54 | } 55 | continue 56 | } 57 | } 58 | } 59 | } 60 | return namedExpressions 61 | } 62 | 63 | override fun createUastHandler(context: JavaContext) = object : UElementHandler() { 64 | 65 | override fun visitCallExpression(node: UCallExpression) { 66 | 67 | val method = node.resolve() ?: return 68 | val uMethod = UastFacade.convertElement(method, null, UMethod::class.java) as UMethod 69 | 70 | var throwsExceptions = HashMap>() 71 | 72 | // Find @Throws in annotation expression 73 | for (annotation in uMethod.uAnnotations) { 74 | if (annotation.qualifiedName != "kotlin.jvm.Throws") continue 75 | for (throwsException in findNamedExpressionsInAnnotation(annotation)) { 76 | throwsExceptions[throwsException.canonicalText] = findClassParents(throwsException) 77 | } 78 | } 79 | 80 | // Find throws in constructor 81 | val throwsList = method.throwsList 82 | throwsList.referencedTypes.forEach { 83 | throwsExceptions[it.canonicalText] = findClassParents(it) 84 | } 85 | 86 | // Find throws in method 87 | for (child in uMethod.uastBody.getQualifiedChain()) { 88 | if (child is UBlockExpression) { 89 | child.sourcePsi ?: continue 90 | for (psi in findChildsInPsi(child.sourcePsi!!)) { 91 | val uElement = psi.toUElement() 92 | if (uElement == null || uElement !is UThrowExpression) continue 93 | val clazz = (uElement.thrownExpression as UCallExpression).resolve() 94 | val mainClassName = clazz?.containingClass?.qualifiedName 95 | mainClassName ?: continue 96 | clazz.containingClass?.superTypes?.forEach { 97 | throwsExceptions[mainClassName] = (findClassParents(it).apply { add(mainClassName) }) 98 | } 99 | 100 | } 101 | } 102 | } 103 | 104 | 105 | // Remove catched 106 | for (element in node.withContainingElements) { 107 | if (element !is UMethod) continue 108 | for (child in element.uAnnotations) { 109 | for (classInAnnotation in findNamedExpressionsInAnnotation(child)) { 110 | throwsExceptions = throwsExceptions.filterTo(HashMap()) { 111 | !it.value.contains(classInAnnotation.canonicalText) 112 | } 113 | } 114 | } 115 | break 116 | } 117 | 118 | for (element in node.withContainingElements) { 119 | if (element !is UTryExpression) continue 120 | for (catchCause in element.catchClauses) { 121 | catchCause.types.forEach { catch -> 122 | throwsExceptions = throwsExceptions.filterTo(HashMap()) { 123 | !it.value.contains(catch.canonicalText) 124 | } 125 | } 126 | } 127 | break 128 | } 129 | 130 | for (exceptions in throwsExceptions) { 131 | context.report( 132 | ISSUE_PATTERN, node, context.getNameLocation(node), 133 | "Unhandled exception: ${exceptions.key}" 134 | ) 135 | } 136 | 137 | } 138 | } 139 | 140 | companion object { 141 | val ISSUE_PATTERN = Issue.create( 142 | "CheckedExceptions", 143 | "Checked exceptions for kotlin", 144 | "Checked exceptions for kotlin", 145 | CORRECTNESS, 146 | 7, 147 | WARNING, 148 | Implementation(CheckedExceptionsDetector::class.java, EnumSet.of(Scope.JAVA_FILE)) 149 | ) 150 | } 151 | } -------------------------------------------------------------------------------- /checks/src/main/java/com/thirdegg/lintrules/android/LintRulesRegistry.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android 2 | 3 | import com.android.tools.lint.client.api.IssueRegistry 4 | import com.android.tools.lint.detector.api.* 5 | import com.thirdegg.lintrules.android.CheckedExceptionsDetector.Companion.ISSUE_PATTERN 6 | 7 | class LintRulesRegistry: IssueRegistry() { 8 | 9 | override val issues: List = listOf(ISSUE_PATTERN) 10 | 11 | override val api: Int = CURRENT_API 12 | 13 | } -------------------------------------------------------------------------------- /checks/src/main/resources/META-INF/services/com.android.tools.lint.client.api.IssueRegistry: -------------------------------------------------------------------------------- 1 | com.thirdegg.lintrules.android.LintRulesRegistry 2 | -------------------------------------------------------------------------------- /checks/src/test/java/com/thirdegg/lintrules/android/Utils.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android 2 | 3 | import java.io.File 4 | 5 | object Utils { 6 | 7 | fun getSdk(): File { 8 | // TestUtils.getSdk() not working 9 | return if (System.getProperty("os.name").startsWith("Windows")) { 10 | File(System.getenv("LOCALAPPDATA")+"\\Android\\Sdk") 11 | } else if (System.getProperty("os.name").contains("Mac OS X")) { 12 | File(System.getProperty("user.home")+"/Library/Android/Sdk/") 13 | } else { 14 | File(System.getProperty("user.home")+"/Android/Sdk/") 15 | } 16 | } 17 | 18 | } -------------------------------------------------------------------------------- /checks/src/test/java/com/thirdegg/lintrules/android/testcases/SimpleTestCase.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android.testcases 2 | 3 | import com.android.tools.lint.checks.infrastructure.TestFiles 4 | import com.android.tools.lint.checks.infrastructure.TestLintTask 5 | import com.thirdegg.lintrules.android.CheckedExceptionsDetector.Companion.ISSUE_PATTERN 6 | import com.thirdegg.lintrules.android.Utils 7 | import org.junit.Test 8 | 9 | class SimpleTestCase { 10 | 11 | private val TestClassKotlin = TestFiles.kotlin(""" 12 | 13 | package com.thirdegg.lintrules.android 14 | 15 | class TestClassKotlin { 16 | 17 | fun test() { 18 | if (false) { 19 | throw TextExceptionKotlin() 20 | } else { 21 | throw Exception() 22 | } 23 | } 24 | 25 | fun tryCatch() { 26 | try { 27 | test() 28 | } catch (e:TextExceptionKotlin) { 29 | e.printStackTrace() 30 | } 31 | test() 32 | } 33 | 34 | } 35 | 36 | class TextExceptionKotlin:Exception("TextException") 37 | 38 | """).indented() 39 | 40 | @Test 41 | fun check_kotlin() { 42 | 43 | TestLintTask.lint() 44 | .sdkHome(Utils.getSdk()) 45 | .issues(ISSUE_PATTERN) 46 | .files(TestClassKotlin) 47 | .run() 48 | .expect(""" 49 | src/com/thirdegg/lintrules/android/TestClassKotlin.kt:20: Warning: Unhandled exception: com.thirdegg.lintrules.android.TextExceptionKotlin [CheckedExceptions] 50 | test() 51 | ~~~~ 52 | 0 errors, 1 warnings 53 | """.trimIndent()) 54 | 55 | } 56 | 57 | } -------------------------------------------------------------------------------- /checks/src/test/java/com/thirdegg/lintrules/android/testcases/StdJavaTestCase.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android.testcases 2 | 3 | import com.android.tools.lint.checks.infrastructure.TestFiles 4 | import com.android.tools.lint.checks.infrastructure.TestLintTask 5 | import com.thirdegg.lintrules.android.CheckedExceptionsDetector.Companion.ISSUE_PATTERN 6 | import com.thirdegg.lintrules.android.Utils 7 | import org.junit.Test 8 | 9 | class StdJavaTestCase { 10 | 11 | private val TestClassKotlin = TestFiles.kotlin(""" 12 | 13 | package com.thirdegg.lintrules.android 14 | 15 | import java.util.Scanner 16 | import java.io.File 17 | import java.io.FileReader 18 | 19 | class TestClassKotlin { 20 | fun test() { 21 | val file = File("file") 22 | val reader = FileReader(file) 23 | Scanner(File("test")) 24 | } 25 | } 26 | 27 | 28 | """).indented() 29 | 30 | 31 | 32 | @Test 33 | fun check_kotlin() { 34 | 35 | TestLintTask.lint() 36 | .sdkHome(Utils.getSdk()) 37 | .issues(ISSUE_PATTERN) 38 | .files(TestClassKotlin) 39 | .run() 40 | .expect(""" 41 | src/com/thirdegg/lintrules/android/TestClassKotlin.kt:11: Warning: Unhandled exception: java.io.FileNotFoundException [CheckedExceptions] 42 | val reader = FileReader(file) 43 | ~~~~~~~~~~ 44 | src/com/thirdegg/lintrules/android/TestClassKotlin.kt:12: Warning: Unhandled exception: java.io.FileNotFoundException [CheckedExceptions] 45 | Scanner(File("test")) 46 | ~~~~~~~ 47 | 0 errors, 2 warnings 48 | """.trimIndent()) 49 | 50 | } 51 | 52 | } -------------------------------------------------------------------------------- /checks/src/test/java/com/thirdegg/lintrules/android/testcases/SuperCatchThrowsTestCase.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android.testcases 2 | 3 | import com.android.tools.lint.checks.infrastructure.TestFiles 4 | import com.android.tools.lint.checks.infrastructure.TestLintTask 5 | import com.thirdegg.lintrules.android.CheckedExceptionsDetector.Companion.ISSUE_PATTERN 6 | import com.thirdegg.lintrules.android.Utils 7 | import org.junit.Test 8 | 9 | class SuperCatchThrowsTestCase { 10 | 11 | val SuperCatchThrowsClassKotlin = TestFiles.kotlin(""" 12 | 13 | package com.thirdegg.lintrules.android 14 | 15 | import java.io.IOException 16 | import java.lang.Exception 17 | 18 | class CheckLint { 19 | 20 | @Throws(SuperPuperException::class) 21 | fun openFile() { 22 | throw SuperPuperException() 23 | } 24 | 25 | @Throws(SuperException::class) 26 | fun doesIO() { 27 | openFile() 28 | } 29 | 30 | @Throws(SuperPuperException::class) 31 | fun doesIOTwo() { 32 | doesIO() 33 | } 34 | 35 | 36 | fun test() { 37 | try { 38 | doesIO() 39 | } catch(e: IOException) { 40 | e.printStackTrace() 41 | } 42 | try { 43 | doesIO() 44 | } catch(e: SuperPuperException) { 45 | e.printStackTrace() 46 | } 47 | doesIO() 48 | } 49 | 50 | class SuperException:IOException() 51 | 52 | class SuperPuperException:SuperException() 53 | 54 | } 55 | 56 | """.trimIndent()) 57 | 58 | @Test 59 | fun check_kotlin() { 60 | 61 | TestLintTask.lint() 62 | .sdkHome(Utils.getSdk()) 63 | .issues(ISSUE_PATTERN) 64 | .files(SuperCatchThrowsClassKotlin) 65 | .run() 66 | .expect(""" 67 | src/com/thirdegg/lintrules/android/CheckLint.kt:21: Warning: Unhandled exception: com.thirdegg.lintrules.android.CheckLint.SuperException [CheckedExceptions] 68 | doesIO() 69 | ~~~~~~ 70 | src/com/thirdegg/lintrules/android/CheckLint.kt:32: Warning: Unhandled exception: com.thirdegg.lintrules.android.CheckLint.SuperException [CheckedExceptions] 71 | doesIO() 72 | ~~~~~~ 73 | src/com/thirdegg/lintrules/android/CheckLint.kt:36: Warning: Unhandled exception: com.thirdegg.lintrules.android.CheckLint.SuperException [CheckedExceptions] 74 | doesIO() 75 | ~~~~~~ 76 | 0 errors, 3 warnings 77 | """.trimIndent()) 78 | 79 | } 80 | 81 | } -------------------------------------------------------------------------------- /checks/src/test/java/com/thirdegg/lintrules/android/testcases/ThrowsInThrowsSecondTestCase.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android.testcases 2 | 3 | import com.android.tools.lint.checks.infrastructure.TestFiles 4 | import com.android.tools.lint.checks.infrastructure.TestLintTask 5 | import com.thirdegg.lintrules.android.CheckedExceptionsDetector.Companion.ISSUE_PATTERN 6 | import com.thirdegg.lintrules.android.Utils 7 | import org.junit.Test 8 | 9 | class ThrowsInThrowsSecondTestCase { 10 | 11 | val ThrowsInThrowsClassKotlin = TestFiles.kotlin(""" 12 | 13 | package com.thirdegg.lintrules.android 14 | 15 | import java.io.IOException 16 | 17 | class CheckLint { 18 | 19 | @Throws(IOException::class) 20 | fun openFile() { 21 | fooBar() 22 | throw IOException() 23 | } 24 | 25 | @Throws(IOException::class) 26 | fun doesIO() { 27 | openFile() // <-- I get a warning here 28 | } 29 | 30 | fun fooBar() { 31 | 32 | } 33 | 34 | fun test() { 35 | doesIO() 36 | } 37 | 38 | } 39 | 40 | """.trimIndent()) 41 | 42 | @Test 43 | fun check_kotlin() { 44 | 45 | TestLintTask.lint() 46 | .sdkHome(Utils.getSdk()) 47 | .issues(ISSUE_PATTERN) 48 | .files(ThrowsInThrowsClassKotlin) 49 | .run() 50 | .expect(""" 51 | src/com/thirdegg/lintrules/android/CheckLint.kt:24: Warning: Unhandled exception: java.io.IOException [CheckedExceptions] 52 | doesIO() 53 | ~~~~~~ 54 | 0 errors, 1 warnings 55 | """.trimIndent()) 56 | 57 | } 58 | 59 | } -------------------------------------------------------------------------------- /checks/src/test/java/com/thirdegg/lintrules/android/testcases/ThrowsInThrowsTestCase.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android.testcases 2 | 3 | import com.android.tools.lint.checks.infrastructure.TestFiles 4 | import com.android.tools.lint.checks.infrastructure.TestLintTask 5 | import com.thirdegg.lintrules.android.CheckedExceptionsDetector.Companion.ISSUE_PATTERN 6 | import com.thirdegg.lintrules.android.Utils 7 | import org.junit.Test 8 | 9 | class ThrowsInThrowsTestCase { 10 | 11 | val ThrowsInThrowsClassKotlin = TestFiles.kotlin(""" 12 | 13 | package com.thirdegg.lintrules.android 14 | 15 | import java.io.IOException 16 | import java.lang.IllegalStateException 17 | 18 | class ThrowsInThrowsClassKotlin { 19 | 20 | fun main() { 21 | doesIO() 22 | } 23 | 24 | @Throws(IOException::class, IllegalStateException::class) 25 | fun doesIO() { 26 | openFile() 27 | } 28 | 29 | @Throws(IllegalStateException::class) 30 | fun openFile() { 31 | fooBar() 32 | } 33 | 34 | } 35 | 36 | """.trimIndent()) 37 | 38 | @Test 39 | fun check_kotlin() { 40 | 41 | TestLintTask.lint() 42 | .sdkHome(Utils.getSdk()) 43 | .issues(ISSUE_PATTERN) 44 | .files(ThrowsInThrowsClassKotlin) 45 | .run() 46 | .expect(""" 47 | src/com/thirdegg/lintrules/android/ThrowsInThrowsClassKotlin.kt:10: Warning: Unhandled exception: java.io.IOException [CheckedExceptions] 48 | doesIO() 49 | ~~~~~~ 50 | src/com/thirdegg/lintrules/android/ThrowsInThrowsClassKotlin.kt:10: Warning: Unhandled exception: java.lang.IllegalStateException [CheckedExceptions] 51 | doesIO() 52 | ~~~~~~ 53 | 0 errors, 2 warnings 54 | """.trimIndent()) 55 | 56 | } 57 | 58 | } -------------------------------------------------------------------------------- /checks/src/test/java/com/thirdegg/lintrules/android/testcases/ThrowsInterfacesTestCase.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android.testcases 2 | 3 | import com.android.tools.lint.checks.infrastructure.TestFiles 4 | import com.android.tools.lint.checks.infrastructure.TestLintTask 5 | import com.thirdegg.lintrules.android.CheckedExceptionsDetector.Companion.ISSUE_PATTERN 6 | import com.thirdegg.lintrules.android.Utils 7 | import org.junit.Test 8 | 9 | class ThrowsInterfacesTestCase { 10 | 11 | val ThrowsInterfaceKotlin = TestFiles.kotlin(""" 12 | 13 | package com.thirdegg.lintrules.android 14 | 15 | interface ThrowsInterfaceKotlin { 16 | 17 | @Throws(Exception::class,ThrowsException::class) 18 | fun tryOne() 19 | 20 | @Throws(ThrowsException::class) 21 | fun tryTwo() 22 | 23 | } 24 | 25 | """).indented() 26 | 27 | val ThrowsExceptionsKotlin = TestFiles.kotlin(""" 28 | 29 | package com.thirdegg.lintrules.android 30 | 31 | class ThrowsException:Exception("ThrowsException") 32 | 33 | """).indented() 34 | 35 | val ThrowsClassJava = TestFiles.kotlin(""" 36 | 37 | package com.thirdegg.lintrules.android 38 | 39 | class ThrowsClassJava(val throwsInterfaceKotlin:ThrowsInterfaceKotlin) { 40 | 41 | fun test() { 42 | 43 | throwsInterfaceKotlin.tryOne() 44 | 45 | throwsInterfaceKotlin.tryTwo() 46 | 47 | try { 48 | throwsInterfaceKotlin.tryOne() 49 | } catch (e:ThrowsException) { 50 | e.printStackTrace() 51 | } 52 | 53 | } 54 | } 55 | 56 | 57 | """).indented() 58 | 59 | @Test 60 | fun check_kotlin() { 61 | 62 | TestLintTask.lint() 63 | .sdkHome(Utils.getSdk()) 64 | .issues(ISSUE_PATTERN) 65 | .files(ThrowsInterfaceKotlin, ThrowsExceptionsKotlin, ThrowsClassJava) 66 | .run() 67 | .expect(""" 68 | src/com/thirdegg/lintrules/android/ThrowsClassJava.kt:8: Warning: Unhandled exception: com.thirdegg.lintrules.android.ThrowsException [CheckedExceptions] 69 | throwsInterfaceKotlin.tryOne() 70 | ~~~~~~ 71 | src/com/thirdegg/lintrules/android/ThrowsClassJava.kt:8: Warning: Unhandled exception: java.lang.Exception [CheckedExceptions] 72 | throwsInterfaceKotlin.tryOne() 73 | ~~~~~~ 74 | src/com/thirdegg/lintrules/android/ThrowsClassJava.kt:10: Warning: Unhandled exception: com.thirdegg.lintrules.android.ThrowsException [CheckedExceptions] 75 | throwsInterfaceKotlin.tryTwo() 76 | ~~~~~~ 77 | src/com/thirdegg/lintrules/android/ThrowsClassJava.kt:13: Warning: Unhandled exception: java.lang.Exception [CheckedExceptions] 78 | throwsInterfaceKotlin.tryOne() 79 | ~~~~~~ 80 | 0 errors, 4 warnings 81 | """.trimIndent()) 82 | 83 | } 84 | 85 | } -------------------------------------------------------------------------------- /checks/src/test/java/com/thirdegg/lintrules/android/testcases/ThrowsTestCase.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android.testcases 2 | 3 | import com.android.tools.lint.checks.infrastructure.TestFiles 4 | import com.android.tools.lint.checks.infrastructure.TestLintTask 5 | import com.thirdegg.lintrules.android.CheckedExceptionsDetector.Companion.ISSUE_PATTERN 6 | import com.thirdegg.lintrules.android.Utils 7 | import org.junit.Test 8 | 9 | class ThrowsTestCase { 10 | 11 | val ThrowsInterfaceKotlin = TestFiles.kotlin(""" 12 | 13 | package com.thirdegg.lintrules.android 14 | 15 | class ThrowsInterfaceKotlin { 16 | 17 | fun tryOne() { 18 | throw ThrowsException() 19 | } 20 | 21 | fun tryTwo() { 22 | throw ThrowsException() 23 | throw ThrowsTwoException() 24 | } 25 | } 26 | 27 | """).indented() 28 | 29 | val ThrowsExceptionsKotlin = TestFiles.kotlin(""" 30 | 31 | package com.thirdegg.lintrules.android 32 | 33 | import java.lang.Exception 34 | 35 | class ThrowsException:Exception("ThrowsException") 36 | class ThrowsTwoException:Exception("ThrowsException") 37 | class ThrowsThreeException:ThrowsTwoException() 38 | 39 | """).indented() 40 | 41 | val ThrowsClassJava = TestFiles.kotlin(""" 42 | 43 | package com.thirdegg.lintrules.android 44 | 45 | class ThrowsClassJava { 46 | 47 | @Throws(ThrowsException::class) 48 | fun tryTwo() { 49 | ThrowsInterfaceKotlin().tryOne() 50 | } 51 | 52 | @Throws(ThrowsException::class,ThrowsTwoException::class) 53 | fun tryThree() { 54 | ThrowsInterfaceKotlin().tryTwo() 55 | } 56 | 57 | @Throws(ThrowsException::class,ThrowsTwoException::class,ThrowsThreeException::class) 58 | fun test() { 59 | tryTwo() 60 | tryThree() 61 | } 62 | 63 | fun test2() { 64 | try { 65 | test() 66 | } catch(e:ThrowsException) { 67 | 68 | } 69 | } 70 | 71 | } 72 | 73 | 74 | """).indented() 75 | 76 | 77 | @Test 78 | fun check_kotlin_throws() { 79 | 80 | TestLintTask.lint() 81 | .sdkHome(Utils.getSdk()) 82 | .issues(ISSUE_PATTERN) 83 | .files( 84 | ThrowsClassJava, 85 | ThrowsExceptionsKotlin, 86 | ThrowsInterfaceKotlin 87 | ).run() 88 | .expect(""" 89 | src/com/thirdegg/lintrules/android/ThrowsClassJava.kt:24: Warning: Unhandled exception: com.thirdegg.lintrules.android.ThrowsThreeException [CheckedExceptions] 90 | test() 91 | ~~~~ 92 | src/com/thirdegg/lintrules/android/ThrowsClassJava.kt:24: Warning: Unhandled exception: com.thirdegg.lintrules.android.ThrowsTwoException [CheckedExceptions] 93 | test() 94 | ~~~~ 95 | 0 errors, 2 warnings 96 | """.trimIndent()) 97 | 98 | } 99 | 100 | } -------------------------------------------------------------------------------- /checks/src/test/java/com/thirdegg/lintrules/android/testcases/WithJavaTestCase.kt: -------------------------------------------------------------------------------- 1 | package com.thirdegg.lintrules.android.testcases 2 | 3 | import com.android.tools.lint.checks.infrastructure.TestFiles 4 | import com.android.tools.lint.checks.infrastructure.TestLintTask 5 | import com.thirdegg.lintrules.android.CheckedExceptionsDetector.Companion.ISSUE_PATTERN 6 | import com.thirdegg.lintrules.android.Utils 7 | import org.junit.Test 8 | 9 | class WithJavaTestCase { 10 | 11 | private val TestClassKotlin = TestFiles.kotlin(""" 12 | 13 | package com.thirdegg.lintrules.android 14 | 15 | class TestClassKotlin { 16 | 17 | fun tryCatch() { 18 | val testClassJava = TestClassJava() 19 | try { 20 | testClassJava.test() 21 | } catch (e:TextExceptionJava) { 22 | e.printStackTrace() 23 | } 24 | testClassJava.test() 25 | } 26 | 27 | } 28 | 29 | """).indented() 30 | 31 | private val TestClassJava = TestFiles.java(""" 32 | 33 | package com.thirdegg.lintrules.android; 34 | 35 | public class TestClassJava { 36 | 37 | private void test() throws TextExceptionJava { 38 | if (true) { 39 | throw new TextExceptionJava(); 40 | } 41 | } 42 | } 43 | 44 | """).indented() 45 | 46 | private val TextExceptionJava = TestFiles.java(""" 47 | 48 | package com.thirdegg.lintrules.android; 49 | 50 | public class TextExceptionJava extends Exception { 51 | TextExceptionJava() { 52 | super("TextException"); 53 | } 54 | } 55 | 56 | """).indented() 57 | 58 | 59 | 60 | @Test 61 | fun check_kotlin() { 62 | 63 | TestLintTask.lint() 64 | .sdkHome(Utils.getSdk()) 65 | .issues(ISSUE_PATTERN) 66 | .files(TestClassKotlin, TestClassJava, TextExceptionJava) 67 | .run() 68 | .expect(""" 69 | src/com/thirdegg/lintrules/android/TestClassKotlin.kt:13: Warning: Unhandled exception: com.thirdegg.lintrules.android.TextExceptionJava [CheckedExceptions] 70 | testClassJava.test() 71 | ~~~~ 72 | 0 errors, 1 warnings 73 | """.trimIndent()) 74 | 75 | } 76 | 77 | } -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | # IDE (e.g. Android Studio) users: 3 | # Gradle settings configured through the IDE *will override* 4 | # any settings specified in this file. 5 | # For more details on how to configure your build environment visit 6 | # http://www.gradle.org/docs/current/userguide/build_environment.html 7 | # Specifies the JVM arguments used for the daemon process. 8 | # The setting is particularly useful for tweaking memory settings. 9 | org.gradle.jvmargs=-Xmx1536m 10 | # When configured, Gradle will run in incubating parallel mode. 11 | # This option should only be used with decoupled projects. More details, visit 12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 13 | # org.gradle.parallel=true 14 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/thirdegg/lint-rules/d1fd20ec2eba13433500431f941706ac12fdcde5/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Wed Sep 08 12:27:11 MSK 2021 2 | distributionBase=GRADLE_USER_HOME 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip 4 | distributionPath=wrapper/dists 5 | zipStorePath=wrapper/dists 6 | zipStoreBase=GRADLE_USER_HOME 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /jitpack.yml: -------------------------------------------------------------------------------- 1 | jdk: 2 | - openjdk11 -------------------------------------------------------------------------------- /library/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /library/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.library' 2 | apply plugin: 'kotlin-android' 3 | apply plugin: 'maven-publish' 4 | 5 | android { 6 | compileSdkVersion 31 7 | defaultConfig { 8 | minSdkVersion 15 9 | targetSdkVersion 31 10 | } 11 | compileOptions { 12 | sourceCompatibility JavaVersion.VERSION_1_8 13 | targetCompatibility JavaVersion.VERSION_1_8 14 | } 15 | } 16 | 17 | /** Package the given lint checks library into this AAR */ 18 | dependencies { 19 | lintPublish project(':checks') 20 | } 21 | 22 | afterEvaluate { 23 | publishing { 24 | publications { 25 | // Creates a Maven publication called "release". 26 | release(MavenPublication) { 27 | from components.release 28 | groupId = 'com.github.thirdegg' 29 | artifactId = 'lint-rules' 30 | version = '0.1.0' 31 | } 32 | } 33 | } 34 | } -------------------------------------------------------------------------------- /library/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /library/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':checks', ':library' --------------------------------------------------------------------------------