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Gracefully handle lambdas registered as extensions
and coverage for lost type info with typed Java and Kotlin lambdas Signed-off-by: Paul Merlin <paul@gradle.com>
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...t/kotlin/org/gradle/kotlin/dsl/integration/ProjectSchemaLambdaAccessorsIntegrationTest.kt
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/* | ||
* Copyright 2019 the original author or authors. | ||
* | ||
* 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. | ||
*/ | ||
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package org.gradle.kotlin.dsl.integration | ||
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import org.gradle.test.fixtures.file.LeaksFileHandles | ||
import org.gradle.test.fixtures.plugin.PluginBuilder | ||
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import org.hamcrest.CoreMatchers.containsString | ||
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import org.junit.ComparisonFailure | ||
import org.junit.Rule | ||
import org.junit.Test | ||
import org.junit.rules.ExpectedException | ||
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import spock.lang.Issue | ||
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@LeaksFileHandles("Kotlin Compiler Daemon working directory") | ||
class ProjectSchemaLambdaAccessorsIntegrationTest : AbstractPluginIntegrationTest() { | ||
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@get:Rule | ||
val exceptionRule: ExpectedException = ExpectedException.none() | ||
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@Test | ||
fun `accessors to **untyped** groovy closures extensions are typed Any`() { | ||
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withDefaultSettings() | ||
PluginBuilder(file("buildSrc")).apply { | ||
addPlugin( | ||
""" | ||
project.extensions.add("closureExtension", { String name -> | ||
name.toUpperCase() | ||
}) | ||
""".trimIndent(), | ||
"my" | ||
) | ||
generateForBuildSrc() | ||
} | ||
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withBuildScript(""" | ||
plugins { | ||
my | ||
} | ||
inline fun <reified T> typeOf(value: T) = typeOf<T>() | ||
println("closureExtension: " + typeOf(closureExtension)) | ||
val casted = closureExtension as groovy.lang.Closure<*> | ||
println(casted.call("some")) | ||
""") | ||
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build("help").apply { | ||
assertOutputContains("closureExtension: java.lang.Object") | ||
assertOutputContains("SOME") | ||
} | ||
} | ||
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@Test | ||
fun `accessors to **untyped** kotlin lambda extensions are typed Any`() { | ||
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requireGradleDistributionOnEmbeddedExecuter() | ||
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withDefaultSettings() | ||
withKotlinBuildSrc() | ||
withFile("buildSrc/src/main/kotlin/my.gradle.kts", """ | ||
extensions.add("lambdaExtension", { name: String -> | ||
name.toUpperCase() | ||
}) | ||
""") | ||
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withBuildScript(""" | ||
plugins { | ||
my | ||
} | ||
inline fun <reified T> typeOf(value: T) = typeOf<T>() | ||
println("lambdaExtension: " + typeOf(lambdaExtension)) | ||
val casted = lambdaExtension as (String) -> String | ||
println(casted.invoke("some")) | ||
""") | ||
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build("help").apply { | ||
assertOutputContains("lambdaExtension: java.lang.Object") | ||
assertOutputContains("SOME") | ||
} | ||
} | ||
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@Test | ||
fun `accessors to **untyped** java lambda extensions are typed Any`() { | ||
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withDefaultSettings() | ||
withFile("buildSrc/build.gradle", """ | ||
plugins { | ||
id("java") | ||
id("java-gradle-plugin") | ||
} | ||
gradlePlugin { | ||
plugins { | ||
my { | ||
id = "my" | ||
implementationClass = "my.MyPlugin" | ||
} | ||
} | ||
} | ||
""") | ||
withFile("buildSrc/src/main/java/my/MyPlugin.java", """ | ||
package my; | ||
import org.gradle.api.*; | ||
import java.util.function.Function; | ||
public class MyPlugin implements Plugin<Project> { | ||
public void apply(Project project) { | ||
Function<String, String> lambda = s -> s.toUpperCase(); | ||
project.getExtensions().add("lambdaExtension", lambda); | ||
} | ||
} | ||
""") | ||
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withBuildScript(""" | ||
import java.util.function.Function | ||
plugins { | ||
my | ||
} | ||
inline fun <reified T> typeOf(value: T) = typeOf<T>() | ||
println("lambdaExtension: " + typeOf(lambdaExtension)) | ||
val casted = lambdaExtension as Function<String, String> | ||
println(casted.apply("some")) | ||
""") | ||
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build("help").apply { | ||
assertOutputContains("lambdaExtension: java.lang.Object") | ||
assertOutputContains("SOME") | ||
} | ||
} | ||
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@Test | ||
fun `accessors to **typed** groovy closures extensions are typed`() { | ||
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withDefaultSettings() | ||
PluginBuilder(file("buildSrc")).apply { | ||
addPlugin( | ||
""" | ||
def typeToken = new org.gradle.api.reflect.TypeOf<Closure<String>>() {} | ||
project.extensions.add(typeToken, "closureExtension", { String name -> | ||
name.toUpperCase() | ||
}) | ||
""".trimIndent(), | ||
"my" | ||
) | ||
generateForBuildSrc() | ||
} | ||
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withBuildScript(""" | ||
plugins { | ||
my | ||
} | ||
inline fun <reified T> typeOf(value: T) = typeOf<T>() | ||
println("closureExtension: " + typeOf(closureExtension)) | ||
println(closureExtension.call("some")) | ||
""") | ||
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build("help").apply { | ||
assertOutputContains("closureExtension: groovy.lang.Closure<java.lang.String>") | ||
assertOutputContains("SOME") | ||
} | ||
} | ||
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@Test | ||
@Issue("https://github.com/gradle/gradle/issues/10772") | ||
fun `accessors to **typed** kotlin lambda extensions are typed`() { | ||
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// TODO:kotlin-dsl Remove once above issue is fixed | ||
exceptionRule.apply { | ||
expect(ComparisonFailure::class.java) | ||
expectMessage(containsString("lambdaExtension: kotlin.jvm.functions.Function1<? super java.lang.Object, ? extends java.lang.String>")) | ||
} | ||
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requireGradleDistributionOnEmbeddedExecuter() | ||
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withDefaultSettings() | ||
withKotlinBuildSrc() | ||
withFile("buildSrc/src/main/kotlin/my.gradle.kts", """ | ||
val typeToken = typeOf<(String) -> String>() | ||
val lambda = { name: String -> name.toUpperCase() } | ||
extensions.add(typeToken, "lambdaExtension", lambda) | ||
""") | ||
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withBuildScript(""" | ||
plugins { | ||
my | ||
} | ||
inline fun <reified T> typeOf(value: T) = typeOf<T>() | ||
println("lambdaExtension: " + typeOf(lambdaExtension)) | ||
println(lambdaExtension("some")) | ||
""") | ||
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build("help").apply { | ||
assertOutputContains("lambdaExtension: kotlin.jvm.functions.Function1<? super java.lang.String, ? extends java.lang.String>") | ||
assertOutputContains("SOME") | ||
} | ||
} | ||
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@Test | ||
@Issue("https://github.com/gradle/gradle/issues/10771") | ||
fun `accessors to **typed** java lambda extensions are typed`() { | ||
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// TODO:kotlin-dsl Remove once above issue is fixed | ||
exceptionRule.apply { | ||
expect(ComparisonFailure::class.java) | ||
expectMessage(containsString("lambdaExtension: java.lang.Object")) | ||
} | ||
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withDefaultSettings() | ||
withFile("buildSrc/build.gradle", """ | ||
plugins { | ||
id("java") | ||
id("java-gradle-plugin") | ||
} | ||
gradlePlugin { | ||
plugins { | ||
my { | ||
id = "my" | ||
implementationClass = "my.MyPlugin" | ||
} | ||
} | ||
} | ||
""") | ||
withFile("buildSrc/src/main/java/my/MyPlugin.java", """ | ||
package my; | ||
import org.gradle.api.*; | ||
import org.gradle.api.reflect.*; | ||
import java.util.function.Function; | ||
public class MyPlugin implements Plugin<Project> { | ||
public void apply(Project project) { | ||
TypeOf<Function<String, String>> typeToken = new TypeOf<Function<String, String>>() {}; | ||
Function<String, String> lambda = s -> s.toUpperCase(); | ||
project.getExtensions().add(typeToken, "lambdaExtension", lambda); | ||
} | ||
} | ||
""") | ||
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withBuildScript(""" | ||
import java.util.function.Function | ||
plugins { | ||
my | ||
} | ||
inline fun <reified T> typeOf(value: T) = typeOf<T>() | ||
println("lambdaExtension: " + typeOf(lambdaExtension)) | ||
val casted = lambdaExtension as Function<String, String> | ||
println(casted.apply("some")) | ||
""") | ||
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build("help").apply { | ||
assertOutputContains("lambdaExtension: java.util.function.Function<java.lang.String, java.lang.String>") | ||
assertOutputContains("SOME") | ||
} | ||
} | ||
} |
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