Looking at
https://github.com/gwtproject/gwt/blob/4d36d55d26aabc12e4429faf0603c539a54a13cd/dev/core/src/com/google/gwt/dev/js/rhino/TokenStream.java#L1251-L1265
which
parses the regexp, it looks like you'd have to escape the '/' so it's not
mistaken for the end of the regexp:
from:
var reg = /^[\\w+/_-]+[=]{0,2}$/
to
var reg = /^[\\w+\/_-]+[=]{0,2}$/
(btw, not sure you really want \\w here)
On Monday, July 29, 2019 at 9:57:09 AM UTC+2, Qin Binghua wrote:
>
> Hello everyone，
>
>
> To simplify the description of the problem, I use an official example to
> illustrate the problem。
>
>
> 1. Follow the GWT Getting Started
> <http://www.gwtproject.org/gettingstarted.html#create> to create a GWT
> project
>
> webAppCreator -out MyWebApp com.mycompany.mywebapp.MyWebApp
>
> 2. Define a JSNI method with java regular expression and call it in
> the *EntryPoint* class com.mycompany.mywebapp.client.MyWebApp
>
> public static native void methodWithRegularExpression()/*-{
> var reg = /^[\\w+/_-]+[=]{0,2}$/
> console.log("reg:" + reg)
> }-*/;
>
> /**
> * This is the entry point method.
> */
> public void onModuleLoad() {
> methodWithRegularExpression();
> }
>
> 3. Compile the project with the following Ant task(gwtc)
>
>
> <!-- Arguments to gwtc and devmode targets -->
> <property name="gwt.args" value="" />
>
> <!-- Configure path to GWT SDK -->
> <property name="gwt.sdk" location="G:/Google/gwt-2.8.2" />
>
> <path id="project.class.path">
> <fileset dir="lib" includes="**/*.jar"/>
> <pathelement location="war/WEB-INF/classes"/>
> <pathelement location="${gwt.sdk}/gwt-user.jar"/>
> <pathelement location="${gwt.sdk}/gwt-dev.jar"/>
> <pathelement location="${gwt.sdk}/validation-api-1.0.0.GA.jar"/>
> <pathelement
> location="${gwt.sdk}/validation-api-1.0.0.GA-sources.jar"/>
> <fileset dir="war/WEB-INF/lib" includes="**/*.jar"/>
> <!-- Add any additional non-server libs (such as JUnit) here -->
> </path>
>
> <target name="libs" description="Copy libs to WEB-INF/lib">
> <mkdir dir="war/WEB-INF/lib" />
> <copy todir="war/WEB-INF/lib" file="${gwt.sdk}/gwt-servlet.jar" />
> <copy todir="war/WEB-INF/lib"
> file="${gwt.sdk}/gwt-servlet-deps.jar" />
> <!-- Add any additional server libs that need to be copied -->
> </target>
>
> <target name="javac" depends="libs" description="Compile java source
> to bytecode">
> <mkdir dir="war/WEB-INF/classes"/>
> <javac srcdir="src" includes="**" encoding="utf-8"
> destdir="war/WEB-INF/classes"
> source="1.7" target="1.7" nowarn="true"
> debug="true" debuglevel="lines,vars,source">
> <classpath refid="project.class.path"/>
> </javac>
> <copy todir="war/WEB-INF/classes">
> <fileset dir="src" excludes="**/*.java"/>
> </copy>
> </target>
>
> <target name="gwtc" depends="javac" description="GWT compile to
> JavaScript (production mode)">
> <java failonerror="true" fork="true"
> classname="com.google.gwt.dev.Compiler" maxmemory="512m">
> <classpath>
> <pathelement location="src"/>
> <path refid="project.class.path"/>
> </classpath>
> <arg line="-war"/>
> <arg value="war"/>
> <!-- Additional arguments like -style PRETTY or -logLevel DEBUG
> -->
> <arg line="${gwt.args}"/>
> <arg line="-strict"/>
> <arg value="com.mycompany.mywebapp.MyWebApp"/>
> </java>
> </target>
>
> 4. Build failed
>
> javac:
> [javac] G:\Google\MyWebApp\build.xml:34: warning:
> 'includeantruntime' was not set, defaulting to build.sysclasspath=last;
> set
> to false for repeatable builds
> [javac] Compiling 1 source file to
> G:\Google\MyWebApp\war\WEB-INF\classes
>
> gwtc:
> [java] 七月 29, 2019 10:31:07 上午 java.util.prefs.WindowsPreferences
> <init>
> [java] 警告: Could not open/create prefs root node
> Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...)
> returned error code 5.
> [java] Compiling module com.mycompany.mywebapp.MyWebApp
> [java] Tracing compile failure path for type
> 'com.mycompany.mywebapp.client.MyWebApp'
> [java] [ERROR] Errors in
> 'file:/G:/Google/MyWebApp/src/com/mycompany/mywebapp/client/MyWebApp.java'
> [java] [ERROR] Line 44: missing ; before statement
> [java] > var reg = /^[\\w+/_-]+[=]{0,2}$/
> [java] > ---------------------------^
> [java] Finding entry point classes
> [java] Tracing compile failure path for type
> 'com.mycompany.mywebapp.client.MyWebApp'
> [java] [ERROR] Errors in
> 'file:/G:/Google/MyWebApp/src/com/mycompany/mywebapp/client/MyWebApp.java'
> [java] [ERROR] Line 44: missing ; before statement
> [java] > var reg = /^[\\w+/_-]+[=]{0,2}$/
> [java] > ---------------------------^
> [java] [ERROR] Hint: Check the inheritance chain from your
> module; it may not be inheriting a required module or a module may not be
> adding its source path entries properly
>
> BUILD FAILED
>
>
> *More information:*
>
> ant version:
> Apache Ant(TM) version 1.9.14 compiled on March 12 2019
>
> GWT SDK version:
> 2.8.2
>
> In the end, does anyone know how to solve this problem?
>
>
>
>
--
You received this message because you are subscribed to the Google Groups "GWT
Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/google-web-toolkit/a7751b4a-3c92-44bd-b379-e255f27db3a6%40googlegroups.com.
