// ECMA-262 14.1 Function Definition
public Node parseFunctionSourceElements()
{
Node statement;
List<Node> body = new List<Node>();
Token token;
string directive;
Token firstRestricted = null;
List<string> oldLabelSet;
bool oldInIteration;
bool oldInSwitch, oldInFunctionBody;
int oldParenthesisCount;
Node node = new Node();
expect("{");
while (startIndex < length)
{
if (lookahead.type != TokenType.StringLiteral)
{
break;
}
token = lookahead;
statement = parseStatementListItem();
body.Add(statement);
if (statement.expression.type != Syntax.Literal)
{
// this is not directive
break;
}
directive = source.Substring(token.start + 1, token.end - 1);
if (directive == "use strict")
{
strict = true;
if (firstRestricted != null)
{
tolerateUnexpectedToken(firstRestricted, Messages.StrictOctalLiteral);
}
}
else
{
if (firstRestricted == null && token.octal)
{
firstRestricted = token;
}
}
}
oldLabelSet = state.labelSet;
oldInIteration = state.inIteration;
oldInSwitch = state.inSwitch;
oldInFunctionBody = state.inFunctionBody;
oldParenthesisCount = state.parenthesizedCount;
state.labelSet = new List<string>();
state.inIteration = false;
state.inSwitch = false;
state.inFunctionBody = true;
state.parenthesizedCount = 0;
while (startIndex < length)
{
if (match("}"))
{
break;
}
body.Add(parseStatementListItem());
}
expect("}");
state.labelSet = oldLabelSet;
state.inIteration = oldInIteration;
state.inSwitch = oldInSwitch;
state.inFunctionBody = oldInFunctionBody;
state.parenthesizedCount = oldParenthesisCount;
return node.finishBlockStatement(body);
}
public Node parseBlock()
{
List<Node> block;
Node node = new Node();
expect("{");
block = parseStatementList();
expect("}");
return node.finishBlockStatement(block);
}