public void testCatchClause() throws Exception {
IPackageFragment pack1 = this.sourceFolder.createPackageFragment("test1", false, null);
StringBuffer buf = new StringBuffer();
buf.append("function foo() {\n");
buf.append(" try {\n");
buf.append(" } catch (e) {\n");
buf.append(" }\n");
buf.append("}\n");
IJavaScriptUnit cu = pack1.createCompilationUnit("E.js", buf.toString(), false, null);
JavaScriptUnit astRoot = createAST(cu);
ASTRewrite rewrite = ASTRewrite.create(astRoot.getAST());
AST ast = astRoot.getAST();
assertTrue("Parse errors", (astRoot.getFlags() & ASTNode.MALFORMED) == 0);
FunctionDeclaration methodDecl = findMethodDeclaration(astRoot, "foo");
Block block = methodDecl.getBody();
List statements = block.statements();
assertTrue("Number of statements not 3", statements.size() == 1);
List catchClauses = ((TryStatement) statements.get(0)).catchClauses();
assertTrue("Number of catchClauses not 1", catchClauses.size() == 1);
{ // change exception type
CatchClause clause = (CatchClause) catchClauses.get(0);
SingleVariableDeclaration exception = clause.getException();
SingleVariableDeclaration newException = ast.newSingleVariableDeclaration();
newException.setName(ast.newSimpleName("ex"));
rewrite.replace(exception, newException, null);
}
{ // change body
CatchClause clause = (CatchClause) catchClauses.get(0);
Block body = clause.getBody();
Block newBody = ast.newBlock();
ReturnStatement returnStatement = ast.newReturnStatement();
newBody.statements().add(returnStatement);
rewrite.replace(body, newBody, null);
}
String preview = evaluateRewrite(cu, rewrite);
buf = new StringBuffer();
buf.append("function foo() {\n");
buf.append(" try {\n");
buf.append(" } catch (ex) {\n");
buf.append(" return;\n");
buf.append(" }\n");
buf.append("}\n");
assertEqualString(preview, buf.toString());
}
/*
* @see ASTVisitor#visit(FunctionDeclaration)
*/
public boolean visit(FunctionDeclaration node) {
if (node.getJavadoc() != null) {
node.getJavadoc().accept(this);
}
if (node.getAST().apiLevel() == AST.JLS2) {
printModifiers(node.getModifiers());
}
if (node.getAST().apiLevel() >= AST.JLS3) {
printModifiers(node.modifiers());
}
// if (!node.isConstructor()) {
// if (node.getAST().apiLevel() == AST.JLS2) {
// node.getReturnType().accept(this);
// } else {
// if (node.getReturnType2() != null) {
// node.getReturnType2().accept(this);
// } else {
// // methods really ought to have a return type
// this.fBuffer.append("void");//$NON-NLS-1$
// }
// }
// this.fBuffer.append(" ");//$NON-NLS-1$
// }
if (node.getName() != null) node.getName().accept(this);
this.fBuffer.append("("); // $NON-NLS-1$
for (Iterator it = node.parameters().iterator(); it.hasNext(); ) {
SingleVariableDeclaration v = (SingleVariableDeclaration) it.next();
v.accept(this);
if (it.hasNext()) {
this.fBuffer.append(","); // $NON-NLS-1$
}
}
this.fBuffer.append(")"); // $NON-NLS-1$
for (int i = 0; i < node.getExtraDimensions(); i++) {
this.fBuffer.append("[]"); // $NON-NLS-1$
}
if (!node.thrownExceptions().isEmpty()) {
this.fBuffer.append(" throws "); // $NON-NLS-1$
for (Iterator it = node.thrownExceptions().iterator(); it.hasNext(); ) {
Name n = (Name) it.next();
n.accept(this);
if (it.hasNext()) {
this.fBuffer.append(", "); // $NON-NLS-1$
}
}
this.fBuffer.append(" "); // $NON-NLS-1$
}
if (node.getBody() == null) {
this.fBuffer.append(";"); // $NON-NLS-1$
} else {
node.getBody().accept(this);
}
return false;
}
/*
* @see ASTVisitor#visit(SingleVariableDeclaration)
*/
public boolean visit(SingleVariableDeclaration node) {
if (node.getAST().apiLevel() == AST.JLS2) {
printModifiers(node.getModifiers());
}
if (node.getAST().apiLevel() >= AST.JLS3) {
printModifiers(node.modifiers());
}
// node.getType().accept(this);
if (node.getAST().apiLevel() >= AST.JLS3) {
if (node.isVarargs()) {
this.fBuffer.append("..."); // $NON-NLS-1$
}
}
this.fBuffer.append(" "); // $NON-NLS-1$
node.getName().accept(this);
for (int i = 0; i < node.getExtraDimensions(); i++) {
this.fBuffer.append("[]"); // $NON-NLS-1$
}
if (node.getInitializer() != null) {
this.fBuffer.append("="); // $NON-NLS-1$
node.getInitializer().accept(this);
}
return false;
}
/** @deprecated using deprecated code */
public void testMethodParamsRenameReorder() throws Exception {
if (true) return;
IPackageFragment pack1 = this.sourceFolder.createPackageFragment("test1", false, null);
StringBuffer buf = new StringBuffer();
buf.append(" function m( y, a) {\n");
buf.append(" m(y, a);\n");
buf.append(" }\n");
IJavaScriptUnit cu = pack1.createCompilationUnit("E.js", buf.toString(), false, null);
JavaScriptUnit astRoot = createAST(cu);
ASTRewrite rewrite = ASTRewrite.create(astRoot.getAST());
AST ast = astRoot.getAST();
assertTrue("Parse errors", (astRoot.getFlags() & ASTNode.MALFORMED) == 0);
// TypeDeclaration type= findTypeDeclaration(astRoot, "E");
FunctionDeclaration methodDecl = findMethodDeclaration(astRoot, "m");
Block block = methodDecl.getBody();
List statements = block.statements();
assertTrue("Number of statements not 1", statements.size() == 1);
{
// params
List params = methodDecl.parameters();
SingleVariableDeclaration firstParam = (SingleVariableDeclaration) params.get(0);
SingleVariableDeclaration secondParam = (SingleVariableDeclaration) params.get(1);
// args
ExpressionStatement stmt = (ExpressionStatement) statements.get(0);
FunctionInvocation invocation = (FunctionInvocation) stmt.getExpression();
List arguments = invocation.arguments();
SimpleName first = (SimpleName) arguments.get(0);
SimpleName second = (SimpleName) arguments.get(1);
// rename args
SimpleName newFirstArg = methodDecl.getAST().newSimpleName("yyy");
SimpleName newSecondArg = methodDecl.getAST().newSimpleName("bb");
rewrite.replace(first, newFirstArg, null);
rewrite.replace(second, newSecondArg, null);
// rename params
SimpleName newFirstName = methodDecl.getAST().newSimpleName("yyy");
SimpleName newSecondName = methodDecl.getAST().newSimpleName("bb");
rewrite.replace(firstParam.getName(), newFirstName, null);
rewrite.replace(secondParam.getName(), newSecondName, null);
// reoder params
ASTNode paramplaceholder1 = rewrite.createCopyTarget(firstParam);
ASTNode paramplaceholder2 = rewrite.createCopyTarget(secondParam);
rewrite.replace(firstParam, paramplaceholder2, null);
rewrite.replace(secondParam, paramplaceholder1, null);
// reorder args
ASTNode placeholder1 = rewrite.createCopyTarget(first);
ASTNode placeholder2 = rewrite.createCopyTarget(second);
rewrite.replace(first, placeholder2, null);
rewrite.replace(second, placeholder1, null);
}
String preview = evaluateRewrite(cu, rewrite);
buf = new StringBuffer();
buf.append(" function m(bb, yyy) {\n");
buf.append(" m(bb, yyy);\n");
buf.append(" }\n");
assertEqualString(preview, buf.toString());
}
