如何编译ANTLR4语法作为maven构建的第一步?
手动从* .g4文件创建语法非常简单 - 在linux上只需要从控制台运行java -jar /usr/local/lib/antlr-4.0-complete.jar grammarName.g4
。这会创建一些需要在构建的下一步中编译的java文件。
是否可以指示maven找到所有* .g4文件,然后为每个文件运行上述命令,然后继续进行构建?如果语法编译失败,编译也会失败。
或者也许有一个插件可以应付这个任务?
我已经看过this answer - 缺点是它依赖于IDE。我希望我的构建尽可能地与IDE和系统无关(我使用Netbeans所以给出的答案是不可接受的)。
修改
我试过了benzonico的建议。我从其他答案中添加了引用的pom.xml中列出的依赖项。这是我的pom.xml的样子:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>pl.kajman</groupId>
<artifactId>antlr-sandbox</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>antlr-sandbox</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.antlr</groupId>
<artifactId>antlr4-maven-plugin</artifactId>
<version>4.0</version>
</dependency>
<dependency>
<groupId>com.tunnelvisionlabs</groupId>
<artifactId>antlr4-runtime</artifactId>
<version>4.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.tunnelvisionlabs</groupId>
<artifactId>antlr4</artifactId>
<version>4.0</version>
<classifier>complete</classifier>
</dependency>
</dependencies>
<build>
<sourceDirectory>src</sourceDirectory>
<outputDirectory>bin</outputDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>6</source>
<target>6</target>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
<compilerArguments>
<Xlint />
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>target/generated-sources/antlr4</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>com.tunnelvisionlabs</groupId>
<artifactId>antlr4-maven-plugin</artifactId>
<version>4.0</version>
<configuration>
<sourceDirectory>src</sourceDirectory>
</configuration>
<executions>
<execution>
<goals>
<goal>antlr4</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
Java文件是从g4文件自动生成的,但遗憾的是有很多错误。它们非常类似于我手动编译时遇到的错误类路径。一些错误是:
/home/kajman/projects/antlr/antlr-sandbox/target/generated-sources/antlr4/main/java/pl/kajman/antlr/sandbox/grammars/ExprListener.java:[6,56] type org.antlr.v4.runtime.tree.ParseTreeListener does not take parameters
/home/kajman/projects/antlr/antlr-sandbox/target/generated-sources/antlr4/main/java/pl/kajman/antlr/sandbox/grammars/ExprParser.java:[44,32] cannot find symbol
symbol: method
getRuleContexts(java.lang.Class<main.java.pl.kajman.antlr.sandbox.grammars.ExprParser.StatContext>)
location: class main.java.pl.kajman.antlr.sandbox.grammars.ExprParser.ProgContext
答案 0 :(得分:2)
实际上,您在问题中提到的帖子中提出的解决方案使用的antlr maven plugin
与您需要的内容完全兼容。解决方案的要点是能够在eclipse中使用它,但是如果你不需要它,你可以跳过关于m2e
(在pluginManagement
会话中)并使用的要点部分立即antlr maven plugin
。