public static GrStatement replaceStatement(
GrStatementOwner declarationOwner, ExtractInfoHelper helper) {
GrStatement realStatement;
if (declarationOwner != null && !isSingleExpression(helper.getStatements())) {
// Replace set of statements
final GrStatement[] newStatement = createResultStatement(helper);
// add call statement
final GrStatement[] statements = helper.getStatements();
LOG.assertTrue(statements.length > 0);
realStatement = null;
for (GrStatement statement : newStatement) {
realStatement = declarationOwner.addStatementBefore(statement, statements[0]);
GrReferenceAdjuster.shortenReferences(realStatement);
}
LOG.assertTrue(realStatement != null);
// remove old statements
removeOldStatements(declarationOwner, helper);
PsiImplUtil.removeNewLineAfter(realStatement);
} else {
// Expression call replace
GrExpression methodCall = createMethodCall(helper);
GrExpression oldExpr = (GrExpression) helper.getStatements()[0];
realStatement = oldExpr.replaceWithExpression(methodCall, true);
GrReferenceAdjuster.shortenReferences(realStatement);
}
return realStatement;
}
public static GrMethod generateDelegate(
PsiMethod prototype, IntroduceParameterData.ExpressionWrapper initializer, Project project) {
final GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(project);
GrMethod result;
if (prototype instanceof GrMethod) {
result = (GrMethod) prototype.copy();
} else {
StringBuilder builder = new StringBuilder();
builder.append(prototype.getModifierList().getText()).append(' ');
if (prototype.getReturnTypeElement() != null) {
builder.append(prototype.getReturnTypeElement().getText());
}
builder.append(' ').append(prototype.getName());
builder.append(prototype.getParameterList().getText());
builder.append("{}");
result = factory.createMethodFromText(builder.toString());
}
StringBuilder call = new StringBuilder();
call.append("def foo(){\n");
final GrParameter[] parameters = result.getParameters();
call.append(prototype.getName());
if (initializer.getExpression() instanceof GrClosableBlock) {
if (parameters.length > 0) {
call.append('(');
for (GrParameter parameter : parameters) {
call.append(parameter.getName()).append(", ");
}
call.replace(call.length() - 2, call.length(), ")");
}
call.append(initializer.getText());
} else {
call.append('(');
for (GrParameter parameter : parameters) {
call.append(parameter.getName()).append(", ");
}
call.append(initializer.getText());
call.append(")");
}
call.append("\n}");
final GrOpenBlock block = factory.createMethodFromText(call.toString()).getBlock();
result.getBlock().replace(block);
final PsiElement parent = prototype.getParent();
final GrMethod method = (GrMethod) parent.addBefore(result, prototype);
GrReferenceAdjuster.shortenReferences(method);
return method;
}