Examples with Else com.jetbrains.php.lang.psi.elements.Else used on opensource projects

Example 1 with Else

use of com.jetbrains.php.lang.psi.elements.Else in project phpinspectionsea by kalessil.

the class UnnecessaryElseFixer method applyFix.

@Override
public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) {
    final PsiElement element = descriptor.getPsiElement();
    final PsiElement expression = null == element ? null : element.getParent();
    final PsiElement newline = PhpPsiElementFactory.createFromText(project, PsiWhiteSpace.class, "\n");
    if (null == expression || null == newline || project.isDisposed()) {
        return;
    }
    if (expression instanceof Else) {
        final Else elseStatement = (Else) expression;
        final If parentIfExpression = (If) expression.getParent();
        final PsiElement parentIfHolder = parentIfExpression.getParent();
        if (elseStatement.getFirstPsiChild() instanceof If) {
            /* handle 'else if' */
            final If nestedIfCopy = (If) elseStatement.getFirstPsiChild().copy();
            elseStatement.delete();
            parentIfHolder.addAfter(nestedIfCopy, parentIfExpression);
            parentIfHolder.addAfter(newline, parentIfExpression);
            return;
        }
        if (elseStatement.getFirstPsiChild() instanceof GroupStatement) {
            /* handle 'else {} ' */
            final GroupStatement elseBodyCopy = (GroupStatement) elseStatement.getFirstPsiChild().copy();
            elseStatement.delete();
            final PsiElement startBracket = elseBodyCopy.getFirstChild();
            final PsiElement endBracket = elseBodyCopy.getLastChild();
            PsiElement last = endBracket.getPrevSibling();
            if (last instanceof PsiWhiteSpace) {
                last = last.getPrevSibling();
            }
            while (null != last) {
                if (last != endBracket && last != startBracket) {
                    parentIfHolder.addAfter(last, parentIfExpression);
                }
                last = last.getPrevSibling();
            }
            /* trailing spacing should not be influence by else body */
            final PsiElement trailingSpaceCandidate = parentIfExpression.getNextSibling();
            if (trailingSpaceCandidate instanceof PsiWhiteSpace) {
                trailingSpaceCandidate.replace(newline);
            } else {
                parentIfHolder.addAfter(newline, parentIfExpression);
            }
            return;
        }
    }
    if (expression instanceof ElseIf) {
        /* handle 'elseif': messed up to not loose cursor after fixing... */
        final ElseIf elseIfStatement = (ElseIf) expression;
        final If parentIfExpression = (If) expression.getParent();
        /* back up original if */
        final If newIf = PhpPsiElementFactory.createPhpPsiFromText(project, If.class, "if (true) {\n}");
        newIf.getCondition().replace(parentIfExpression.getCondition());
        ExpressionSemanticUtil.getGroupStatement(newIf).replace(ExpressionSemanticUtil.getGroupStatement(parentIfExpression));
        /* drop the elseif, backup resulted construct */
        parentIfExpression.getCondition().replace(elseIfStatement.getCondition().copy());
        ExpressionSemanticUtil.getGroupStatement(parentIfExpression).replace(ExpressionSemanticUtil.getGroupStatement(elseIfStatement).copy());
        elseIfStatement.delete();
        final PsiElement followUpIf = parentIfExpression.copy();
        /* insert following up if, which was backed up */
        final PsiElement parentIfHolder = parentIfExpression.getParent();
        parentIfHolder.addAfter(followUpIf, parentIfExpression);
        parentIfHolder.addAfter(newline, parentIfExpression);
        /* actualize if-statement with clean one */
        parentIfHolder.addBefore(newIf, parentIfExpression);
        parentIfExpression.delete();
    }
}