本文整理匯總了Java中com.siyeh.ig.psiutils.ExpressionUtils.isLiteral方法的典型用法代碼示例。如果您正苦於以下問題：Java ExpressionUtils.isLiteral方法的具體用法？Java ExpressionUtils.isLiteral怎麽用？Java ExpressionUtils.isLiteral使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類com.siyeh.ig.psiutils.ExpressionUtils的用法示例。
在下文中一共展示了ExpressionUtils.isLiteral方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: visitSynchronizedStatement
import com.siyeh.ig.psiutils.ExpressionUtils; //導入方法依賴的package包/類
@Override
public void visitSynchronizedStatement(@NotNull PsiSynchronizedStatement statement) {
super.visitSynchronizedStatement(statement);
final PsiExpression lockExpression = statement.getLockExpression();
if (lockExpression == null) {
return;
}
final PsiType type = lockExpression.getType();
if (type == null) {
return;
}
if (!type.equalsToText(CommonClassNames.JAVA_LANG_STRING) &&
!type.equalsToText(CommonClassNames.JAVA_LANG_BOOLEAN) &&
!type.equalsToText(CommonClassNames.JAVA_LANG_CHARACTER)) {
final PsiClassType javaLangNumberType = TypeUtils.getType(CommonClassNames.JAVA_LANG_NUMBER, statement);
if (!javaLangNumberType.isAssignableFrom(type)) {
return;
}
}
if (!(lockExpression instanceof PsiReferenceExpression)) {
if (ExpressionUtils.isLiteral(lockExpression)) {
registerError(lockExpression, type, Integer.valueOf(2));
}
else if (warnOnAllPossiblyLiterals) {
registerError(lockExpression, type, Integer.valueOf(3));
}
return;
}
final PsiReferenceExpression referenceExpression = (PsiReferenceExpression)lockExpression;
final PsiElement target = referenceExpression.resolve();
if (!(target instanceof PsiVariable)) {
if (warnOnAllPossiblyLiterals) {
registerError(lockExpression, type, Integer.valueOf(3));
}
return;
}
final PsiVariable variable = (PsiVariable)target;
final PsiExpression initializer = variable.getInitializer();
if (!ExpressionUtils.isLiteral(initializer)) {
if (warnOnAllPossiblyLiterals) {
registerError(lockExpression, type, Integer.valueOf(3));
}
return;
}
registerError(lockExpression, type, Integer.valueOf(1));
}
示例2: isCompileTimeFlagCheck
import com.siyeh.ig.psiutils.ExpressionUtils; //導入方法依賴的package包/類
private static boolean isCompileTimeFlagCheck(PsiElement element)
{
if(element instanceof PsiBinaryExpression)
{
PsiBinaryExpression binOp = (PsiBinaryExpression) element;
if(ComparisonUtils.isComparisonOperation(binOp.getOperationTokenType()))
{
PsiExpression comparedWith = null;
if(ExpressionUtils.isLiteral(binOp.getROperand()))
{
comparedWith = binOp.getLOperand();
}
else if(ExpressionUtils.isLiteral(binOp.getLOperand()))
{
comparedWith = binOp.getROperand();
}
comparedWith = PsiUtil.skipParenthesizedExprDown(comparedWith);
if(isConstantOfType(comparedWith, PsiType.INT, PsiType.LONG))
{
// like "if(DEBUG_LEVEL > 2)"
return true;
}
if(comparedWith instanceof PsiBinaryExpression)
{
PsiBinaryExpression subOp = (PsiBinaryExpression) comparedWith;
if(subOp.getOperationTokenType().equals(JavaTokenType.AND))
{
PsiExpression left = PsiUtil.skipParenthesizedExprDown(subOp.getLOperand());
PsiExpression right = PsiUtil.skipParenthesizedExprDown(subOp.getROperand());
if(isConstantOfType(left, PsiType.INT, PsiType.LONG) || isConstantOfType(right, PsiType.INT, PsiType.LONG))
{
// like "if((FLAGS & SOME_FLAG) != 0)"
return true;
}
}
}
}
}
// like "if(DEBUG)"
return isConstantOfType(element, PsiType.BOOLEAN);
}