本文整理了Java中com.intellij.util.Query.findFirst方法的一些代码示例，展示了Query.findFirst的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Query.findFirst方法的具体详情如下：
包路径：com.intellij.util.Query
类名称：Query
方法名：findFirst

Query.findFirst介绍

暂无

代码示例

代码示例来源：origin: go-lang-plugin-org/go-lang-idea-plugin

@Override
 public void visitConstDefinition(@NotNull GoConstDefinition o) {
  if (o.isBlank()) return;
  if (ReferencesSearch.search(o, o.getUseScope()).findFirst() == null) {
   String constName = o.getName();
   holder.registerProblem(o, "Unused constant <code>#ref</code> #loc", ProblemHighlightType.LIKE_UNUSED_SYMBOL,
               new GoDeleteConstDefinitionQuickFix(constName));
  }
 }
};

代码示例来源：origin: go-lang-plugin-org/go-lang-idea-plugin

@Override
 public void visitLabelDefinition(@NotNull GoLabelDefinition o) {
  super.visitLabelDefinition(o);
  if (o.isBlank()) return;
  if (ReferencesSearch.search(o, o.getUseScope()).findFirst() == null) {
   String name = o.getName();
   holder.registerProblem(o, "Unused label <code>#ref</code> #loc", ProblemHighlightType.GENERIC_ERROR_OR_WARNING,
               new GoRenameToBlankQuickFix(o), new GoDeleteLabelStatementQuickFix(name));
  }
 }
};

代码示例来源：origin: go-lang-plugin-org/go-lang-idea-plugin

private void visitParameterList(List<GoParameterDeclaration> parameters, String what) {
  for (GoParameterDeclaration parameterDeclaration : parameters) {
   for (GoParamDefinition parameter : parameterDeclaration.getParamDefinitionList()) {
    ProgressManager.checkCanceled();
    if (parameter.isBlank()) continue;
    Query<PsiReference> search = ReferencesSearch.search(parameter, parameter.getUseScope());
    if (search.findFirst() != null) continue;
    holder.registerProblem(parameter, "Unused " + what + " <code>#ref</code> #loc", ProblemHighlightType.LIKE_UNUSED_SYMBOL);
   }
  }
 }
};

代码示例来源：origin: go-lang-plugin-org/go-lang-idea-plugin

@Override
 public void visitFunctionDeclaration(@NotNull GoFunctionDeclaration o) {
  if (o.isBlank()) return;
  GoFile file = o.getContainingFile();
  String name = o.getName();
  if (!canRun(name)) return;
  if (GoConstants.MAIN.equals(file.getPackageName()) && GoConstants.MAIN.equals(name)) return;
  if (GoConstants.INIT.equals(name)) return;
  if (GoTestFinder.isTestFile(file) && GoTestFunctionType.fromName(name) != null) return;
  if (ReferencesSearch.search(o, o.getUseScope()).findFirst() == null) {
   PsiElement id = o.getIdentifier();
   TextRange range = TextRange.from(id.getStartOffsetInParent(), id.getTextLength());
   holder.registerProblem(o, "Unused function <code>#ref</code> #loc", ProblemHighlightType.LIKE_UNUSED_SYMBOL, range,
               new GoDeleteQuickFix("Delete function", GoFunctionDeclaration.class), new GoRenameToBlankQuickFix(o));
  }
 }
};

代码示例来源：origin: zalando/intellij-swagger

private void warn(
   final PsiElement psiElement,
   final AnnotationHolder annotationHolder,
   final PsiElement searchableCurrentElement,
   final String warning) {
  final PsiReference first = ReferencesSearch.search(searchableCurrentElement).findFirst();

  if (first == null) {
   Annotation annotation = annotationHolder.createWeakWarningAnnotation(psiElement, warning);
   annotation.setHighlightType(ProblemHighlightType.LIKE_UNUSED_SYMBOL);
  }
 }
}

代码示例来源：origin: zalando/intellij-swagger

private void warn(
   final PsiElement psiElement,
   final AnnotationHolder annotationHolder,
   final PsiElement searchableCurrentElement,
   final String warning) {
  final PsiReference first = ReferencesSearch.search(searchableCurrentElement).findFirst();

  if (first == null) {
   Annotation annotation = annotationHolder.createWeakWarningAnnotation(psiElement, warning);
   annotation.setHighlightType(ProblemHighlightType.LIKE_UNUSED_SYMBOL);
  }
 }
}

代码示例来源：origin: Camelcade/Perl5-IDEA

@Override
 public void visitLabelDeclaration(@NotNull PsiPerlLabelDeclaration o) {
  if (ReferencesSearch.search(o).findFirst() == null) {
   holder.registerProblem(o, "Unused label declaration (possibly deprecated usage)", ProblemHighlightType.LIKE_UNUSED_SYMBOL);
  }
  super.visitLabelDeclaration(o);
 }
};

代码示例来源：origin: Camelcade/Perl5-IDEA

@Override
 public void visitGlobVariable(@NotNull PsiPerlGlobVariable o) {
  if ((o.getExplicitPackageName() != null || !PerlGlobUtil.BUILT_IN.contains(o.getName())) &&
    ReferencesSearch.search(o, GlobalSearchScope.projectScope(o.getProject())).findFirst() == null) {
   holder.registerProblem(o, "Unused typeglob alias", ProblemHighlightType.LIKE_UNUSED_SYMBOL);
  }
 }
};

代码示例来源：origin: Camelcade/Perl5-IDEA

@Override
public void visitPerlSubDefinitionElement(@NotNull PerlSubDefinitionElement o) {
 PsiElement subNameElement = o.getNameIdentifier();
 if (subNameElement != null &&
   !EXCLUSIONS.contains(o.getName()) &&
   ReferencesSearch.search(o, GlobalSearchScope.projectScope(o.getProject())).findFirst() == null) {
  holder.registerProblem(subNameElement, "Unused sub definition", ProblemHighlightType.LIKE_UNUSED_SYMBOL);
 }
}

代码示例来源：origin: Camelcade/Perl5-IDEA

@Override
 public void visitSubDeclarationElement(@NotNull PerlSubDeclarationElement o) {
  PsiElement subNameElement = o.getNameIdentifier();
  if (subNameElement != null &&
    !EXCLUSIONS.contains(o.getName()) &&
    ReferencesSearch.search(o, GlobalSearchScope.projectScope(o.getProject())).findFirst() == null) {
   holder.registerProblem(subNameElement, "Unused sub declaration", ProblemHighlightType.LIKE_UNUSED_SYMBOL);
  }
 }
};

代码示例来源：origin: Camelcade/Perl5-IDEA

@Override
 public void checkDeclaration(ProblemsHolder holder, PerlVariableDeclarationElement variableDeclarationWrapper) {
  if (variableDeclarationWrapper.isGlobalDeclaration()) {
   if (EXCLUSIONS.contains(variableDeclarationWrapper.getText())) {
    return;
   }

   if (ReferencesSearch.search(variableDeclarationWrapper, variableDeclarationWrapper.getUseScope()).findFirst() == null) {
    PerlVariable variable = variableDeclarationWrapper.getVariable();
    holder.registerProblem(
     variable,
     "Unused global variable:" + variable.getText(),
     ProblemHighlightType.LIKE_UNUSED_SYMBOL);
   }
  }
 }
}

代码示例来源：origin: Camelcade/Perl5-IDEA

TargetElementUtil.getInstance().getNamedElement(myElement, myAdjustedOffset - myElement.getNode().getStartOffset());
if (namedElement != null) {
 PsiReference reference = ReferencesSearch.search(namedElement, new LocalSearchScope(myFile)).findFirst();
 if (reference instanceof PsiPolyVariantReference) {
  List<PsiElement> result = new ArrayList<>();

代码示例来源：origin: Camelcade/Perl5-IDEA

@Override
 public void checkDeclaration(ProblemsHolder holder, PerlVariableDeclarationElement variableDeclarationWrapper) {
  if (variableDeclarationWrapper.isLexicalDeclaration() &&
    !variableDeclarationWrapper.isLocalDeclaration()
   ) {
   if (ReferencesSearch.search(variableDeclarationWrapper, variableDeclarationWrapper.getUseScope()).findFirst() == null) {
    PerlVariable variable = variableDeclarationWrapper.getVariable();
    holder.registerProblem(
     variable,
     "Unused lexical variable:" + variable.getText(),
     ProblemHighlightType.LIKE_UNUSED_SYMBOL);
   }
  }
 }
}

代码示例来源：origin: Camelcade/Perl5-IDEA

PsiReference inboundReference = ReferencesSearch.search(currentOpener).findFirst();
  PsiReference lastOpenerReference = ReferencesSearch.search(lastOpener).findFirst();
  if (lastOpenerReference != null) {
   PsiElement element = lastOpenerReference.getElement();
 inboundReference = ReferencesSearch.search(currentOpener).findFirst();