} // ParseExpression
// Parse a LeftHandSideExpression.
//
// If checkForCallExpr is false, then we don't check for CallExpressions.
// This is used when parsing the function in a "new" expression, to
// avoid parsing arguments to "new" as part of the expression that
// specifies the function.
private ExprFrag ParseLeftHandSideExpression( FunctionInfo info,
bool checkForCallExpr )
{
ExprFrag expr;
if (tok.TryMatchKeyword("new"))
{
SrcLoc newLoc = tok.Prev().loc;
ExprFrag constructor = ParseLeftHandSideExpression(info, false);
ArrayList args = null;
if (tok.TryMatchOp("("))
args = MatchOptionalArgumentList(info);
expr = gen.Construct(newLoc, constructor, args);
}
else if (tok.TryMatchKeyword("function"))
{
SrcLoc functionLoc = tok.Prev().loc;
FunctionInfo childInfo = info.GetNextChild();
ParseFunction(childInfo, true);
expr = gen.FunctionExpr(functionLoc, childInfo);
}
else
expr = ParsePrimaryExpression(info);
while (true)
if (checkForCallExpr && tok.TryMatchOp("("))
{
SrcLoc opLoc = tok.Prev().loc;
ArrayList args = MatchOptionalArgumentList(info);
expr = gen.Call(opLoc, expr, args);
}
else if (tok.TryMatchOp("["))
{
SrcLoc opLoc = tok.Prev().loc;
expr = gen.ArrayReference(opLoc, expr, this.ParseExpression(info, true));
tok.MatchOp("]");
}
else if (tok.TryMatchOp("."))
{
SrcLoc opLoc = tok.Prev().loc;
expr = gen.FieldReference(opLoc, expr, tok.MatchID());
}
else
return expr;
} // ParseLeftHandSideExpression
} // ParseProgram
// Parse a SourceElements (i.e. the main program, or a function body)
// and return the generated code.
private StmtFrag ParseSourceElements( FunctionInfo info,
CGFuncInfo cgFuncInfo )
{
SrcLoc loc;
loc.lineNum = 1;
loc.colNum = 1;
loc.absPosition = 0;
loc.len = 1;
StmtFrag frag = gen.NewStmtFrag(loc);
while (!tok.atEnd && !tok.PeekOp("}"))
if (tok.TryMatchKeyword("function"))
ParseFunction(info.GetNextChild(), false);
else
frag.Append(ParseStatement(info));
return frag;
} // ParseSourceElements