private void replaceExpressionsWithConstant() throws JavaScriptModelException {
ASTRewrite astRewrite = fCuRewrite.getASTRewrite();
AST ast = astRewrite.getAST();
IASTFragment[] fragmentsToReplace = getFragmentsToReplace();
for (int i = 0; i < fragmentsToReplace.length; i++) {
IASTFragment fragment = fragmentsToReplace[i];
SimpleName ref = ast.newSimpleName(fConstantName);
Name replacement = ref;
if (qualifyReferencesWithDeclaringClassName()) {
replacement =
ast.newQualifiedName(ast.newSimpleName(getContainingTypeBinding().getName()), ref);
}
TextEditGroup description =
fCuRewrite.createGroupDescription(
RefactoringCoreMessages.ExtractConstantRefactoring_replace);
fragment.replace(astRewrite, replacement, description);
if (fLinkedProposalModel != null)
fLinkedProposalModel
.getPositionGroup(KEY_NAME, true)
.addPosition(astRewrite.track(ref), false);
}
}
private IExpressionFragment getSelectedExpression() throws JavaScriptModelException {
if (fSelectedExpression != null) return fSelectedExpression;
IASTFragment selectedFragment =
ASTFragmentFactory.createFragmentForSourceRange(
new SourceRange(fSelectionStart, fSelectionLength), fCuRewrite.getRoot(), fCu);
if (selectedFragment instanceof IExpressionFragment
&& !Checks.isInsideJavadoc(selectedFragment.getAssociatedNode())) {
fSelectedExpression = (IExpressionFragment) selectedFragment;
}
return fSelectedExpression;
}
// !! - like one in ExtractTempRefactoring
private static boolean canReplace(IASTFragment fragment) {
ASTNode node = fragment.getAssociatedNode();
ASTNode parent = node.getParent();
if (parent instanceof VariableDeclarationFragment) {
VariableDeclarationFragment vdf = (VariableDeclarationFragment) parent;
if (node.equals(vdf.getName())) return false;
}
if (parent instanceof ExpressionStatement) return false;
if (parent instanceof SwitchCase) return false;
return true;
}