// ECMA-262 13.9 The break statement
public Node parseBreakStatement(Node node)
{
Node label = null;
string key;
expectKeyword("break");
// Catch the very common case first: immediately a semicolon (U+003B).
if (source.ToCharArray()[lastIndex] == 0x3B)
{
lex();
if (!(state.inIteration || state.inSwitch))
{
throwError(Messages.IllegalBreak);
}
return node.finishBreakStatement(null);
}
if (hasLineTerminator)
{
if (!(state.inIteration || state.inSwitch))
{
throwError(Messages.IllegalBreak);
}
return node.finishBreakStatement(null);
}
if (lookahead.type == TokenType.Identifier)
{
label = parseVariableIdentifier();
//key = "$" + label.name;
//if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
// throwError(Messages.UnknownLabel, label.name);
//}
}
consumeSemicolon();
if (label == null && !(state.inIteration || state.inSwitch))
{
throwError(Messages.IllegalBreak);
}
return node.finishBreakStatement(label);
}