Groovyc can compile all sketching wvc.

web-views/.gitignore

@@ -1 +1,2 @@
 bin
+groovyc-out

web-views/build.gradle

@@ -137,6 +137,7 @@ tasks.register('uberJar', Jar) {
     group = 'build'
     archiveBaseName = 'web-views-uber'
     from sourceSets.main.output
+    from sourceSets.sketching.output
     from sourceSets.main.runtimeClasspath.filter(File.&exists).collect {
         it.isDirectory() ? it : zipTree(it)
     }

web-views/runGroovyc

@@ -1,17 +1,18 @@
 #!/usr/bin/env bash
 
 if [ "$1" == "--debug" ]; then
+  shift
   gradle -q uberJar && \
     java -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=*:8192 \
       -cp build/libs/web-views-uber-0.1.0.jar \
       org.codehaus.groovy.tools.FileSystemCompiler \
       --configscript src/main/resources/groowt/view/web/groovyc/GroovycConfigurationScript.groovy \
       -d groovyc-out \
-      sketching/helloTarget.wvc
+      "$@"
 else
   gradle -q uberJar && \
     groovyc -cp build/libs/web-views-uber-0.1.0.jar \
       --configscript src/main/resources/groowt/view/web/groovyc/GroovycConfigurationScript.groovy \
       -d groovyc-out \
-      sketching/helloTarget.wvc
+      "$@"
 fi

web-views/sketching/EchoElement.wvc

@@ -1,4 +1,4 @@
 ---
-import groowt.view.web.lib.Echo
+package sketching
 ---
 <Echo><p>$cliGreeting</p></Echo>

web-views/sketching/PreambleHelloTarget.wvc

@@ -1,9 +1,13 @@
 ---
+package sketching
+
+import groovy.transform.Field
+
 void consume(out) {
     out << 'World'
 }
 
-@groovy.transform.Field
+@Field
 String greeting = 'Hello'
 ---
 $greeting, ${consume(it)}!

web-views/sketching/SimpleGreeter.wvc

@@ -1,4 +1,6 @@
 ---
+package sketching
+
 class Greeter extends BaseWebViewComponent {
     String target
 

web-views/sketching/TwoGreeters.wvc

@@ -0,0 +1,6 @@
+---
+package groowt.view.web.sketching
+---
+<>
+    <Greeters.Simple greeting='Hello, one!' />&nbsp;<Greeters.Simple greeting='Hello, two!' />
+</>

web-views/sketching/UseHelper.wvc

@@ -0,0 +1,4 @@
+---
+package sketching
+---
+${new Helper().help('My God, it works')}

web-views/sketching/twoGreeters.wvc

@@ -1,3 +0,0 @@
-<>
-    <Greeter greeting='Hello, one!' />&nbsp;<Greeter greeting='Hello, two!' />
-</>

web-views/src/main/java/groowt/view/web/compiler/MultipleWebViewComponentCompileErrorsException.java

@@ -16,7 +16,7 @@ public class MultipleWebViewComponentCompileErrorsException extends ComponentTem
             ComponentTemplateCompileUnit compileUnit,
             List<? extends Throwable> errors
     ) {
-        super(compileUnit, "There were multiple errors during compilation.");
+        super(compileUnit, "There were multiple errors during compilation/transpilation.");
         this.errors.addAll(errors);
     }
 

web-views/src/main/java/groowt/view/web/compiler/WebViewComponentTemplateCompileUnit.java

@@ -28,7 +28,11 @@ public class WebViewComponentTemplateCompileUnit extends AbstractComponentTempla
             String defaultPackageName
     ) {
         super(forClass, source);
-        this.defaultPackageName = defaultPackageName;
+        if (!defaultPackageName.isEmpty() && !defaultPackageName.endsWith(".")) {
+            this.defaultPackageName = defaultPackageName + ".";
+        } else {
+            this.defaultPackageName = defaultPackageName;
+        }
     }
 
     @Override

web-views/src/main/java/groowt/view/web/groovyc/DelegatingWvcParserPlugin.java

@@ -3,6 +3,7 @@ package groowt.view.web.groovyc;
 import groowt.view.component.compiler.ComponentTemplateCompileException;
 import groowt.view.component.compiler.DefaultComponentTemplateCompilerConfiguration;
 import groowt.view.component.compiler.source.ComponentTemplateSource;
+import groowt.view.web.WebViewComponentBugError;
 import groowt.view.web.analysis.MismatchedComponentTypeAnalysis;
 import groowt.view.web.analysis.MismatchedComponentTypeError;
 import groowt.view.web.antlr.*;
@@ -26,13 +27,18 @@ import org.codehaus.groovy.control.ParserPlugin;
 import org.codehaus.groovy.control.SourceUnit;
 import org.codehaus.groovy.syntax.ParserException;
 import org.codehaus.groovy.syntax.Reduction;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
+import java.io.File;
 import java.io.IOException;
 import java.io.Reader;
 import java.util.List;
 
 public class DelegatingWvcParserPlugin implements ParserPlugin {
 
+    private static final Logger logger = LoggerFactory.getLogger(DelegatingWvcParserPlugin.class);
+
     private final Antlr4ParserPlugin groovyParserPlugin;
 
     public DelegatingWvcParserPlugin(Antlr4ParserPlugin groovyParserPlugin) {
@@ -98,23 +104,41 @@ public class DelegatingWvcParserPlugin implements ParserPlugin {
     }
 
     protected ParserException translateException(ComponentTemplateCompileException e) {
-        final var actual = (WebViewComponentTemplateCompileException) e;
-        final SourcePosition sourcePosition = actual.getSourcePosition();
-        if (sourcePosition != null) {
-            return new ParserException(e.getMessage(), e, sourcePosition.line(), sourcePosition.column());
+        if (e instanceof WebViewComponentTemplateCompileException single) {
+            final SourcePosition sourcePosition = single.getSourcePosition();
+            if (sourcePosition != null) {
+                return new ParserException(e.getMessage(), e, sourcePosition.line(), sourcePosition.column());
+            } else {
+                return new ParserException(e.getMessage(), e, 1, 1);
+            }
+        } else if (e instanceof MultipleWebViewComponentCompileErrorsException multiple) {
+            return new ParserException("There were multiple errors during compilation/transpilation.", multiple, 1, 1);
         } else {
-            return new ParserException(e.getMessage(), e, -1, -1);
+            throw new WebViewComponentBugError(
+                    "Cannot determine the type of non-WebViewComponent compile exception: "
+                            + e.getClass().getName()
+            );
         }
     }
 
+    protected void logException(WebViewComponentTemplateCompileException e) {
+        logger.error(e.getMessage());
+    }
+
+    protected void logException(MultipleWebViewComponentCompileErrorsException e) {
+        logger.error(e.getMessage());
+    }
+
     @Override
     public ModuleNode buildAST(SourceUnit sourceUnit, ClassLoader classLoader, Reduction cst) throws ParserException {
-        final String sourceUnitName = sourceUnit.getName();
-        if (sourceUnitName.endsWith(".wvc")) {
+        final String sourceUnitFullName = sourceUnit.getName();
+        final int lastSlashIndex = sourceUnitFullName.lastIndexOf(File.separator);
+        final String sourceUnitFileName = sourceUnitFullName.substring(lastSlashIndex + 1);
+        if (sourceUnitFileName.endsWith(".wvc")) {
             final var compileUnit = new WebViewComponentTemplateCompileUnit(
                     AnonymousWebViewComponent.class,
                     ComponentTemplateSource.of(sourceUnit.getSource().getURI()),
-                    "groowt.view.web.groovyc"
+                    "" // default package
             );
 
             final CompilationUnitParseResult parseResult;
@@ -134,10 +158,12 @@ public class DelegatingWvcParserPlugin implements ParserPlugin {
                     final var errorExceptions = parseErrors.getAll().stream()
                             .map(errorNode -> getException(compileUnit, errorNode))
                             .toList();
-                    throw this.translateException(new MultipleWebViewComponentCompileErrorsException(
+                    final var multiple = new MultipleWebViewComponentCompileErrorsException(
                             compileUnit,
                             errorExceptions
-                    ));
+                    );
+                    this.logException(multiple);
+                    throw this.translateException(multiple);
                 }
             }
 
@@ -152,10 +178,12 @@ public class DelegatingWvcParserPlugin implements ParserPlugin {
                     final var errorExceptions = mismatchedComponentTypeErrors.stream()
                             .map(error -> getException(compileUnit, error))
                             .toList();
-                    throw this.translateException(new MultipleWebViewComponentCompileErrorsException(
+                    final var multiple = new MultipleWebViewComponentCompileErrorsException(
                             compileUnit,
                             errorExceptions
-                    ));
+                    );
+                    this.logException(multiple);
+                    throw this.translateException(multiple);
                 }
             }
 
@@ -165,15 +193,26 @@ public class DelegatingWvcParserPlugin implements ParserPlugin {
             final var cuNode = (CompilationUnitNode) astBuilder.build(parseResult.getCompilationUnitContext());
 
             final var groovyTranspiler = new DefaultGroovyTranspiler();
+            final String nameWithoutExtension = sourceUnitFileName.substring(0, sourceUnitFileName.length() - 4);
             try {
                 final SourceUnit transpiledSourceUnit = groovyTranspiler.transpile(
                         new DefaultComponentTemplateCompilerConfiguration(),
                         compileUnit,
                         cuNode,
-                        sourceUnitName.substring(0, sourceUnitName.length() - 4)
+                        nameWithoutExtension
                 );
                 return transpiledSourceUnit.getAST();
             } catch (ComponentTemplateCompileException e) {
+                if (e instanceof WebViewComponentTemplateCompileException single) {
+                    this.logException(single);
+                } else if (e instanceof MultipleWebViewComponentCompileErrorsException multiple) {
+                    this.logException(multiple);
+                } else {
+                    throw new WebViewComponentBugError(
+                            "Could not determine type of non-WebViewComponent compile exception: "
+                                    + e.getClass().getName()
+                    );
+                }
                 throw this.translateException(e);
             }
         } else {

web-views/src/main/java/groowt/view/web/transpile/DefaultGroovyTranspiler.java

@@ -87,6 +87,7 @@ public class DefaultGroovyTranspiler implements GroovyTranspiler {
                         classNode.getMixins()
                 );
                 icn.setDeclaringClass(mainClassNode);
+                result.add(icn);
             }
         }
         return result;
@@ -178,7 +179,10 @@ public class DefaultGroovyTranspiler implements GroovyTranspiler {
         final var moduleNode = new WebViewComponentModuleNode(sourceUnit);
         sourceUnit.setModuleNode(moduleNode);
 
-        moduleNode.setPackageName(compileUnit.getDefaultPackageName());
+        final String defaultPackageName = compileUnit.getDefaultPackageName();
+        if (!defaultPackageName.trim().isEmpty()) {
+            moduleNode.setPackageName(defaultPackageName);
+        }
 
         moduleNode.addStarImport(GROOWT_VIEW_WEB + ".lib");
         moduleNode.addImport(COMPONENT_TEMPLATE.getNameWithoutPackage(), COMPONENT_TEMPLATE);
@@ -187,7 +191,7 @@ public class DefaultGroovyTranspiler implements GroovyTranspiler {
         moduleNode.addStarImport(GROOWT_VIEW_WEB + ".runtime");
 
         final ClassNode mainClassNode = new ClassNode(
-                compileUnit.getDefaultPackageName() + "." + templateClassName,
+                compileUnit.getDefaultPackageName() + templateClassName,
                 ACC_PUBLIC,
                 ClassHelper.OBJECT_TYPE
         );

web-views/src/main/java/groowt/view/web/transpile/resolve/ModuleNodeComponentClassNodeResolver.java

@@ -32,7 +32,7 @@ public class ModuleNodeComponentClassNodeResolver extends CachingComponentClassN
             for (final var starImport : starImports) {
                 final var packageName = starImport.getPackageName();
                 final String fqn;
-                if (packageName.endsWith(".")) {
+                if (!packageName.equals(".") && packageName.endsWith(".")) {
                     fqn = packageName + nameWithoutPackage;
                 } else {
                     fqn = packageName + "." + nameWithoutPackage;
@@ -44,13 +44,23 @@ public class ModuleNodeComponentClassNodeResolver extends CachingComponentClassN
             }
 
             // try pre-pending package and asking for fqn
-            final var packageName = this.moduleNode.getPackageName();
-            final String fqn;
-            if (packageName.endsWith(".")) {
-                fqn = this.moduleNode.getPackageName() + nameWithoutPackage;
+            final String moduleNodePackageName = this.moduleNode.getPackageName();
+            final String packageName;
+            if (moduleNodePackageName != null) {
+                packageName = moduleNodePackageName;
             } else {
-                fqn = this.moduleNode.getPackageName() + "." + nameWithoutPackage;
+                packageName = "";
             }
+
+            final String fqn;
+            if (packageName.equals(".") || packageName.isEmpty()) {
+                fqn = nameWithoutPackage;
+            } else if (packageName.endsWith(".")) {
+                fqn = packageName + nameWithoutPackage;
+            } else {
+                fqn = packageName + "." + nameWithoutPackage;
+            }
+
             final var withPackage = this.getClassForFqn(fqn);
             if (withPackage.isRight()) {
                 return withPackage;