/**
* A utility method to output consistent error messages.
*
* @param ctx The ANTLR node the error occurred in.
* @return The error message with tacked on line number and character position.
*/
static String error(final ParserRuleContext ctx) {
return "Analyzer Error ["
+ ctx.getStart().getLine()
+ ":"
+ ctx.getStart().getCharPositionInLine()
+ "]: ";
}
@Override
public void parse(StatementSkip node, ParserRuleContext context) {
// Get Symbol for line
TerminalNodeImpl firstTerminal = (TerminalNodeImpl) context.getChild(0);
Label label =
new LabelLine(
node.getClass(), firstTerminal.getSymbol().getText(), context.getStart().getLine());
node.setL(label);
}
@Override
public void parse(DeclarationArrayInteger node, ParserRuleContext context) {
// Get Symbol for line
TerminalNodeImpl firstTerminal = (TerminalNodeImpl) context.getChild(1);
Label label =
new LabelLine(
node.getClass(), firstTerminal.getSymbol().getText(), context.getStart().getLine());
node.setL(label);
}
@Override
public void enterStatement(JavaParser.StatementContext ctx) {
ctx.getChildCount();
String text = ctx.getStart().getText();
if (!text.equals("if") && !text.equals("while") && !text.equals("for") && !text.equals("do")) {
return;
}
int depth = 1;
ParserRuleContext tempContext = ctx.getParent();
while (!(tempContext instanceof JavaParser.MethodDeclarationContext)) {
if (tempContext instanceof JavaParser.StatementContext) {
text = tempContext.getStart().getText();
if (text.equals("if") || text.equals("while") || text.equals("for") || text.equals("do")) {
depth++;
}
}
tempContext = tempContext.getParent();
}
report.setDepthOfConditionNesting(depth);
}
public static Interval getSourceInterval(@NonNull ParserRuleContext context) {
Parameters.notNull("context", context);
int startIndex = context.start.getStartIndex();
Token stopSymbol = getStopSymbol(context);
if (stopSymbol == null) {
return new Interval(startIndex, startIndex - 1);
}
int stopIndex;
if (stopSymbol.getType() != Token.EOF) {
stopIndex = stopSymbol.getStopIndex();
} else {
TokenSource tokenSource = context.getStart().getTokenSource();
CharStream inputStream = tokenSource != null ? tokenSource.getInputStream() : null;
if (inputStream != null) {
stopIndex = inputStream.size() - 1;
} else {
stopIndex = context.start.getStartIndex() - 1;
}
}
stopIndex = Math.max(stopIndex, startIndex - 1);
return new Interval(startIndex, stopIndex);
}