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dsl maven build cannot resolve types defined in xtend [message #1753873]

Sat, 11 February 2017 03:46

paul lu

Messages: 43
Registered: April 2013

Member

Hi,

I met a compilation problem in building a dsl project, where the dsl code uses types from xtend code.

I experimented with the example project:
https://github.com/xtext/maven-xtext-example

Defined a Foo type in
example-project/src/main/java/my/pack/Foo.xtend
package my.pack
class Foo { }
Then changed the example-project/src/main/java/Super.hero file to:
hero Superman can FLY {
pirntln(new my.pack.Foo())
println("Hello I can fly!")
}

In mvn compile, I got the error:
ERROR:my.pack.Foo cannot be resolved. (file:/Users/paul/Downloads/maven-xtext-example/example-project/src/main/java/Super.hero line : 2 column : 17)

The pom adds both the xtend plugin and the dsl plugin. Are the maven plugins not able to perform this kind of build? I tried the same on the gradle version, it seems to work.

Thanks,
Paul

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Re: dsl maven build cannot resolve types defined in xtend [message #1753874 is a reply to message #1753873]

Sat, 11 February 2017 05:54

Christian Dietrich

Messages: 14735
Registered: July 2009

Senior Member

Hi,

the problem is a different one.
the xtext maven plgin does not know xtend, the xtend maven plugin does not know hero

you need the xtext maven plugin to know xtend and remove the xtend maven plugin

<plugin>
				<groupId>org.eclipse.xtext</groupId>
				<artifactId>xtext-maven-plugin</artifactId>
				<version>${xtext-version}</version>
				<executions>
					<execution>
						<goals>
							<goal>generate</goal>
						</goals>
					</execution>
				</executions>
				<configuration>
					<languages>
						<language>
							<setup>my.mavenized.HeroLanguageStandaloneSetup</setup>
							<outputConfigurations>
								<outputConfiguration>
									<outputDirectory>src/main/generated-sources/xtend/</outputDirectory>
								</outputConfiguration>
							</outputConfigurations>
						</language>
						
						<language>
							<setup>org.eclipse.xtend.core.XtendStandaloneSetup</setup>
							<outputConfigurations>
								<outputConfiguration>
									<outputDirectory>src/main/generated-sources/xtend/</outputDirectory>
								</outputConfiguration>
							</outputConfigurations>
						</language>
					
					</languages>
				</configuration>
				<dependencies>
					<dependency>
						<groupId>my.mavenized.herolanguage</groupId>
						<artifactId>my.mavenized.herolanguage</artifactId>
						<version>1.0.0-SNAPSHOT</version>
					</dependency>
					<dependency>
						<groupId>org.eclipse.xtend</groupId>
						<artifactId>org.eclipse.xtend.core</artifactId>
						<version>${xtext-version}</version>
					</dependency>
				</dependencies>
			</plugin>

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