Fix #117 Parent selector (&) not supported in variable declaration

Author: racodond

.travis.yml

@@ -10,8 +10,8 @@ env:
     - secure: "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"
     - secure: "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"
   matrix:
-    - SQ_VERSION=LTS
-    - SQ_VERSION=LATEST_RELEASE
+    - SQ_VERSION=LATEST_RELEASE[6.7]
+    - SQ_VERSION=DEV
 
 cache:
   directories:

CONTRIBUTING.md

@@ -14,5 +14,5 @@ You feel like:
 
 ## Building / Testing / Releasing
 * Building and running unit tests: `mvn clean install`
-* Building and running unit tests and running integration tests: `mvn clean install -Pits -Dsonar.runtimeVersion=$VERSION` ($VERSION = 'LTS' or 'LATEST_RELEASE'). Behind a proxy, add `-Dhttps.proxyHost=localhost -Dhttps.proxyPort=3128 -Dhttp.proxyHost=localhost -Dhttp.proxyPort=3128`.
+* Building and running unit tests and running integration tests: `mvn clean install -Pits -Dsonar.runtimeVersion=$VERSION` ($VERSION = 'LATEST_RELEASE[X.X]' or 'DEV'). Behind a proxy, add `-Dhttps.proxyHost=localhost -Dhttps.proxyPort=3128 -Dhttp.proxyHost=localhost -Dhttp.proxyPort=3128`.
 * Releasing on Maven Central: `mvn clean deploy -Possrh`

appveyor.yml

@@ -12,8 +12,8 @@ install:
 
 environment:
   matrix:
-    - SQ_VERSION: "LTS"
-    - SQ_VERSION: "LATEST_RELEASE"
+    - SQ_VERSION: "LATEST_RELEASE[6.7]"
+    - SQ_VERSION: "DEV"
 
 platform:
   - x64

css-checks/src/main/java/org/sonar/css/checks/css/ParsingErrorCheck.java

@@ -34,4 +34,7 @@
 @ActivatedByDefault
 @SqaleConstantRemediation("30min")
 public class ParsingErrorCheck extends DoubleDispatchVisitorCheck {
+
+  public static final String MESSAGE = "Parse error";
+
 }

css-checks/src/main/java/org/sonar/css/checks/less/ParsingErrorCheck.java

@@ -34,4 +34,7 @@
 @ActivatedByDefault
 @SqaleConstantRemediation("30min")
 public class ParsingErrorCheck extends DoubleDispatchVisitorCheck {
+
+  public static final String MESSAGE = "Parse error";
+
 }

css-checks/src/main/java/org/sonar/css/checks/scss/ParsingErrorCheck.java

@@ -34,4 +34,7 @@
 @ActivatedByDefault
 @SqaleConstantRemediation("30min")
 public class ParsingErrorCheck extends DoubleDispatchVisitorCheck {
+
+  public static final String MESSAGE = "Parse error";
+
 }

css-frontend/src/main/java/org/sonar/css/parser/LexicalGrammar.java

@@ -197,10 +197,13 @@ public enum LexicalGrammar implements GrammarRuleKey {
 
   SCSS_MIXIN_BLOCK,
 
-  SCSS_PARENT_SELECTOR,
   SCSS_PARENT_SELECTOR_KEYWORD,
+  SCSS_PARENT_SELECTOR_KEYWORD_WITH_SPACING,
+  SCSS_PARENT_SELECTOR,
+  SCSS_PARENT_SELECTOR_WITH_SPACING,
   SCSS_PARENT_SELECTOR_COMBINATOR,
   SCSS_PARENT_REFERENCING_SELECTOR,
+  SCSS_PARENT_REFERENCING_SELECTOR_WITH_SPACING,
   SCSS_PLACEHOLDER_SELECTOR,
 
   SCSS_EXTEND,
@@ -594,6 +597,7 @@ private static void scss(LexerlessGrammarBuilder b) {
     b.rule(SCSS_DOLLAR).is(b.token(GenericTokenType.LITERAL, "$"));
     b.rule(SCSS_ELLIPSIS).is(b.token(GenericTokenType.LITERAL, "..."));
     b.rule(SCSS_PARENT_SELECTOR_KEYWORD).is("&");
+    b.rule(SCSS_PARENT_SELECTOR_KEYWORD_WITH_SPACING).is(SPACING, "&");
 
     b.rule(SCSS_VARIABLE_PREFIX).is(SPACING, SCSS_DOLLAR);
     b.rule(SCSS_DEFAULT_KEYWORD).is(SPACING, b.token(GenericTokenType.LITERAL, "!default"));

css-frontend/src/main/java/org/sonar/css/parser/scss/ScssGrammar.java

@@ -26,7 +26,23 @@
 import org.sonar.css.tree.impl.SeparatedList;
 import org.sonar.css.tree.impl.css.InternalSyntaxToken;
 import org.sonar.plugins.css.api.tree.Tree;
-import org.sonar.plugins.css.api.tree.css.*;
+import org.sonar.plugins.css.api.tree.css.AttributeMatcherExpressionTree;
+import org.sonar.plugins.css.api.tree.css.AttributeSelectorTree;
+import org.sonar.plugins.css.api.tree.css.ClassSelectorTree;
+import org.sonar.plugins.css.api.tree.css.CompoundSelectorTree;
+import org.sonar.plugins.css.api.tree.css.DeclarationTree;
+import org.sonar.plugins.css.api.tree.css.DelimiterTree;
+import org.sonar.plugins.css.api.tree.css.IdSelectorTree;
+import org.sonar.plugins.css.api.tree.css.IdentifierTree;
+import org.sonar.plugins.css.api.tree.css.PropertyTree;
+import org.sonar.plugins.css.api.tree.css.PseudoIdentifierTree;
+import org.sonar.plugins.css.api.tree.css.SelectorCombinatorTree;
+import org.sonar.plugins.css.api.tree.css.SelectorTree;
+import org.sonar.plugins.css.api.tree.css.StatementBlockTree;
+import org.sonar.plugins.css.api.tree.css.StyleSheetTree;
+import org.sonar.plugins.css.api.tree.css.TypeSelectorTree;
+import org.sonar.plugins.css.api.tree.css.ValueCommaSeparatedListTree;
+import org.sonar.plugins.css.api.tree.css.ValueTree;
 import org.sonar.plugins.css.api.tree.scss.*;
 
 /**
@@ -129,6 +145,8 @@ public Tree ANY_WITHOUT_COMMA_SEPARATED_LIST() {
   public Tree ANY_SASS_SCRIPT_EXPRESSION() {
     return b.<Tree>nonterminal().is(
       b.firstOf(
+        SCSS_PARENT_REFERENCING_SELECTOR_WITH_SPACING(),
+        SCSS_PARENT_SELECTOR_WITH_SPACING(),
         VALUE_COMMA_SEPARATED_LIST(),
         IMPORTANT_FLAG(),
         SCSS_GLOBAL_FLAG(),
@@ -154,6 +172,8 @@ public Tree ANY_SASS_SCRIPT_EXPRESSION() {
   public Tree ANY_SASS_SCRIPT_EXPRESSION_WITHOUT_COMMA_SEPARATED_LIST() {
     return b.<Tree>nonterminal().is(
       b.firstOf(
+        SCSS_PARENT_REFERENCING_SELECTOR_WITH_SPACING(),
+        SCSS_PARENT_SELECTOR_WITH_SPACING(),
         IMPORTANT_FLAG(),
         SCSS_GLOBAL_FLAG(),
         SCSS_DEFAULT_FLAG(),
@@ -353,6 +373,11 @@ public ScssParentSelectorTree SCSS_PARENT_SELECTOR() {
       f.scssParentSelector(b.token(LexicalGrammar.SCSS_PARENT_SELECTOR_KEYWORD)));
   }
 
+  public ScssParentSelectorTree SCSS_PARENT_SELECTOR_WITH_SPACING() {
+    return b.<ScssParentSelectorTree>nonterminal(LexicalGrammar.SCSS_PARENT_SELECTOR_WITH_SPACING).is(
+      f.scssParentSelector(b.token(LexicalGrammar.SCSS_PARENT_SELECTOR_KEYWORD_WITH_SPACING)));
+  }
+
   public ScssParentReferencingSelectorTree SCSS_PARENT_REFERENCING_SELECTOR() {
     return b.<ScssParentReferencingSelectorTree>nonterminal(LexicalGrammar.SCSS_PARENT_REFERENCING_SELECTOR).is(
       f.scssParentReferencingSelector(
@@ -362,6 +387,15 @@ public ScssParentReferencingSelectorTree SCSS_PARENT_REFERENCING_SELECTOR() {
           IDENTIFIER_NO_WS())));
   }
 
+  public ScssParentReferencingSelectorTree SCSS_PARENT_REFERENCING_SELECTOR_WITH_SPACING() {
+    return b.<ScssParentReferencingSelectorTree>nonterminal(LexicalGrammar.SCSS_PARENT_REFERENCING_SELECTOR_WITH_SPACING).is(
+      f.scssParentReferencingSelector(
+        SCSS_PARENT_SELECTOR_WITH_SPACING(),
+        b.firstOf(
+          SCSS_INTERPOLATED_IDENTIFIER_NO_WS(),
+          IDENTIFIER_NO_WS())));
+  }
+
   public ScssPlaceholderSelectorTree SCSS_PLACEHOLDER_SELECTOR() {
     return b.<ScssPlaceholderSelectorTree>nonterminal(LexicalGrammar.SCSS_PLACEHOLDER_SELECTOR).is(
       f.scssPlaceholderSelector(

css-frontend/src/main/java/org/sonar/css/tree/impl/scss/ScssVariableDeclarationTreeImpl.java

@@ -82,14 +82,14 @@ public ValueTree value() {
   @Nullable
   public ScssDefaultFlagTree defaultFlag() {
     Optional<ScssDefaultFlagTree> defaultFlag = value.firstValueElementOfType(ScssDefaultFlagTree.class);
-    return defaultFlag.isPresent() ? defaultFlag.get() : null;
+    return defaultFlag.orElse(null);
   }
 
   @Override
   @Nullable
   public ScssGlobalFlagTree globalFlag() {
     Optional<ScssGlobalFlagTree> globalFlag = value.firstValueElementOfType(ScssGlobalFlagTree.class);
-    return globalFlag.isPresent() ? globalFlag.get() : null;
+    return globalFlag.orElse(null);
   }
 
   @Override

css-frontend/src/test/java/org/sonar/css/parser/scss/ScssParentReferencingSelectorWithSpacingTreeTest.java

@@ -0,0 +1,56 @@
+/*
+ * SonarQube CSS / SCSS / Less Analyzer
+ * Copyright (C) 2013-2017 David RACODON
+ * mailto: david.racodon@gmail.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+package org.sonar.css.parser.scss;
+
+import org.junit.Test;
+import org.sonar.css.parser.LexicalGrammar;
+import org.sonar.plugins.css.api.tree.scss.ScssParentReferencingSelectorTree;
+
+import static org.fest.assertions.Assertions.assertThat;
+
+public class ScssParentReferencingSelectorWithSpacingTreeTest extends ScssTreeTest {
+
+  public ScssParentReferencingSelectorWithSpacingTreeTest() {
+    super(LexicalGrammar.SCSS_PARENT_REFERENCING_SELECTOR_WITH_SPACING);
+  }
+
+  @Test
+  public void scssParentReferencingSelector() {
+    checkParsed("&-bar", "-bar");
+    checkParsed(" &-bar", "-bar");
+    checkParsed("&bar", "bar");
+    checkParsed(" &bar", "bar");
+  }
+
+  @Test
+  public void notScssParentReferencingSelector() {
+    checkNotParsed("&");
+    checkNotParsed("& bar");
+  }
+
+  private void checkParsed(String toParse, String expectedIdentifier) {
+    ScssParentReferencingSelectorTree tree = (ScssParentReferencingSelectorTree) parser().parse(toParse);
+    assertThat(tree).isNotNull();
+    assertThat(tree.parent()).isNotNull();
+    assertThat(tree.append()).isNotNull();
+    assertThat(tree.text()).isEqualTo(expectedIdentifier);
+  }
+
+}

css-frontend/src/test/java/org/sonar/css/parser/scss/ScssParentSelectorWithSpacingTreeTest.java

@@ -0,0 +1,47 @@
+/*
+ * SonarQube CSS / SCSS / Less Analyzer
+ * Copyright (C) 2013-2017 David RACODON
+ * mailto: david.racodon@gmail.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+package org.sonar.css.parser.scss;
+
+import org.junit.Test;
+import org.sonar.css.parser.LexicalGrammar;
+import org.sonar.plugins.css.api.tree.scss.ScssParentSelectorTree;
+
+import static org.fest.assertions.Assertions.assertThat;
+
+public class ScssParentSelectorWithSpacingTreeTest extends ScssTreeTest {
+
+  public ScssParentSelectorWithSpacingTreeTest() {
+    super(LexicalGrammar.SCSS_PARENT_SELECTOR_WITH_SPACING);
+  }
+
+  @Test
+  public void sscsParentSelector() {
+    checkParsed("&");
+    checkParsed(" &");
+  }
+
+  private void checkParsed(String toParse) {
+    ScssParentSelectorTree tree = (ScssParentSelectorTree) parser().parse(toParse);
+    assertThat(tree).isNotNull();
+    assertThat(tree.parentSelector()).isNotNull();
+    assertThat(tree.parentSelector().text()).isEqualTo("&");
+  }
+
+}

css-frontend/src/test/java/org/sonar/css/parser/scss/ScssSassScriptExpressionTreeTest.java

@@ -37,6 +37,9 @@ public void scssSassScriptExpression() {
     checkParsed("1 + 2");
     checkParsed("(a: 2, b: 3)");
     checkParsed("abc((a: 2, b: 3))");
+    checkParsed("&");
+    checkParsed("&-name");
+    checkParsed("&-name abc");
   }
 
   private ValueTree checkParsed(String toParse) {

css-frontend/src/test/java/org/sonar/css/parser/scss/ScssVariableDeclarationTreeTest.java

@@ -56,6 +56,11 @@ public void scssVariableDeclaration() {
     checkParsed(" $abc : 123");
     checkParsed(" $abc : 123;");
     checkParsed(" $abc: 10, $def");
+    checkParsed(" $abc:&");
+    checkParsed(" $abc:&-name");
+    checkParsed(" $abc: &");
+    checkParsed(" $abc: &-name");
+    checkParsed(" $abc: &-name abc");
 
     checkParsed("$grid-gutter-widths: (\n" +
       "  xs: $grid-gutter-width-base,\n" +

its/plugin/tests/src/test/java/org/sonar/css/Tests.java

@@ -53,7 +53,8 @@ public class Tests {
 
   @ClassRule
   public static final Orchestrator ORCHESTRATOR = Orchestrator.builderEnv()
-    .addPlugin(FileLocation.byWildcardFilename(new File("../../../sonar-css-plugin/target"), "sonar-css-plugin-*-SNAPSHOT.jar"))
+    .setSonarVersion(System.getProperty("sonar.runtimeVersion", "DEV"))
+    .addPlugin(FileLocation.byWildcardMavenFilename(new File("../../../sonar-css-plugin/target"), "sonar-css-plugin-*-SNAPSHOT.jar"))
     .addPlugin(FileLocation.byWildcardFilename(new File("../plugins/css-custom-rules-plugin/target"), "css-custom-rules-plugin-*-SNAPSHOT.jar"))
     .restoreProfileAtStartup(FileLocation.ofClasspath("/org/sonar/css/profiles/css-zero-units-only-profile.xml"))
     .restoreProfileAtStartup(FileLocation.ofClasspath("/org/sonar/css/profiles/less-zero-units-only-profile.xml"))
@@ -68,11 +69,10 @@ public class Tests {
     .build();
 
   public static SonarScanner createSonarScannerBuild() {
-    SonarScanner build = SonarScanner.create();
-    build.setProjectVersion("1.0");
-    build.setSourceEncoding("UTF-8");
-    build.setSourceDirs("src");
-    return build;
+    return SonarScanner.create()
+      .setProjectVersion("1.0")
+      .setSourceEncoding("UTF-8")
+      .setSourceDirs("src");
   }
 
   public static void setCssProfile(String profileName, String projectKey) {

its/ruling/tests/src/test/java/org/sonar/css/its/CssTest.java

@@ -23,6 +23,7 @@
 import com.sonar.orchestrator.Orchestrator;
 import com.sonar.orchestrator.build.SonarScanner;
 import com.sonar.orchestrator.locator.FileLocation;
+import com.sonar.orchestrator.locator.MavenLocation;
 import org.junit.Before;
 import org.junit.ClassRule;
 import org.junit.Test;
@@ -39,9 +40,9 @@ public class CssTest {
 
   @ClassRule
   public static Orchestrator orchestrator = Orchestrator.builderEnv()
+    .setSonarVersion(System.getProperty("sonar.runtimeVersion", "DEV"))
     .addPlugin(FileLocation.byWildcardMavenFilename(new File("../../../sonar-css-plugin/target"), "sonar-css-plugin-*-SNAPSHOT.jar"))
-    .setOrchestratorProperty("litsVersion", "0.6")
-    .addPlugin("lits")
+    .addPlugin(MavenLocation.of("org.sonarsource.sonar-lits-plugin", "sonar-lits-plugin", "0.6"))
     .build();
 
   @Before
@@ -70,13 +71,11 @@ public void test() throws Exception {
       .setProjectKey("project")
       .setSourceDirs("./")
       .setSourceEncoding("UTF-8")
-      .setProperty("sonar.import_unknown_files", "true")
       .setProperty("sonar.analysis.mode", "preview")
-      .setProperty("sonar.issuesReport.html.enable", "true")
       .setProperty("dump.old", FileLocation.of("src/test/expected").getFile().getAbsolutePath())
       .setProperty("dump.new", FileLocation.of("target/actual").getFile().getAbsolutePath())
       .setProperty("lits.differences", litsDifferencesFile.getAbsolutePath())
-      .setProperty("sonar.cpd.skip", "true");
+      .setProperty("sonar.cpd.exclusions", "**/*");
     orchestrator.executeBuild(build);
 
     assertThat(Files.asCharSource(litsDifferencesFile, StandardCharsets.UTF_8).read()).isEmpty();

pom.xml

@@ -127,7 +127,7 @@
       <dependency>
         <groupId>org.sonarsource.orchestrator</groupId>
         <artifactId>sonar-orchestrator</artifactId>
-        <version>3.15.2.1322</version>
+        <version>3.22.0.1791</version>
         <exclusions>
           <exclusion>
             <groupId>com.oracle</groupId>

travis.sh

@@ -6,7 +6,7 @@ git fetch --unshallow
 
 mvn -B clean install -Pits -Dsonar.runtimeVersion=$SQ_VERSION
 
-if [ "$SQ_VERSION" == "LTS" ]; then
+if [ "$SQ_VERSION" == "DEV" ]; then
 
     mvnCommand='mvn -B sonar:sonar'
     commonArgs="-Dsonar.host.url=https://sonarcloud.io -Dsonar.login=$SONAR_TOKEN -Dsonar.organization=racodond-github"