/**
* Find frame containing declaration.
*
* @param name name of the declaration to find
* @return LexicalFrame containing declaration or null
*/
private LexicalFrame findFrame(String name) {
if (current != null) {
return current.getIfContains(name);
} else {
return null;
}
}
/**
* Check whether the frame contains a given name.
*
* @param nameToFind the name we're looking for
* @return whether it was found
*/
LexicalFrame getIfContains(String nameToFind) {
LexicalFrame frame = null;
if (contains(nameToFind)) {
frame = this;
} else if (parent != null) {
frame = parent.getIfContains(nameToFind);
}
return frame;
}
/**
* Parse the next AST for declarations.
*
* @param frameStack Stack containing the FrameTree being built
* @param ast AST to parse
*/
private static void collectDeclarations(Deque<LexicalFrame> frameStack, DetailAST ast) {
final LexicalFrame frame = frameStack.peek();
switch (ast.getType()) {
case TokenTypes.VARIABLE_DEF:
collectVariableDeclarations(ast, frame);
break;
case TokenTypes.PARAMETER_DEF:
final DetailAST parameterAST = ast.findFirstToken(TokenTypes.IDENT);
frame.addName(parameterAST.getText());
break;
case TokenTypes.CLASS_DEF:
case TokenTypes.INTERFACE_DEF:
case TokenTypes.ENUM_DEF:
case TokenTypes.ANNOTATION_DEF:
final DetailAST classAST = ast.findFirstToken(TokenTypes.IDENT);
frame.addName(classAST.getText());
frameStack.addFirst(new ClassFrame(frame));
break;
case TokenTypes.SLIST:
frameStack.addFirst(new BlockFrame(frame));
break;
case TokenTypes.METHOD_DEF:
final String name = ast.findFirstToken(TokenTypes.IDENT).getText();
if (frame instanceof ClassFrame) {
final DetailAST mods = ast.findFirstToken(TokenTypes.MODIFIERS);
if (mods.branchContains(TokenTypes.LITERAL_STATIC)) {
((ClassFrame) frame).addStaticMethod(name);
} else {
((ClassFrame) frame).addInstanceMethod(name);
}
}
frameStack.addFirst(new MethodFrame(frame));
break;
case TokenTypes.CTOR_DEF:
frameStack.addFirst(new MethodFrame(frame));
break;
default:
// do nothing
}
}
/**
* Collect Variable Declarations.
*
* @param ast variable token
* @param frame current frame
*/
private static void collectVariableDeclarations(DetailAST ast, LexicalFrame frame) {
final String name = ast.findFirstToken(TokenTypes.IDENT).getText();
if (frame instanceof ClassFrame) {
final DetailAST mods = ast.findFirstToken(TokenTypes.MODIFIERS);
if (ScopeUtils.isInInterfaceBlock(ast) || mods.branchContains(TokenTypes.LITERAL_STATIC)) {
((ClassFrame) frame).addStaticMember(name);
} else {
((ClassFrame) frame).addInstanceMember(name);
}
} else {
frame.addName(name);
}
}