void CompileFunction(XPathFunctionExpr expr)
{
// In some scenarios, some functions are handled in a special way
if (this.CompileFunctionSpecial(expr))
{
return;
}
// Generic function compilation
QueryFunction function = expr.Function;
// Compile each argument expression first, introducing a typecast where appropriate
// Arguments are pushed C style - right to left
if (expr.SubExprCount > 0)
{
XPathExprList paramList = expr.SubExpr;
for (int i = paramList.Count - 1; i >= 0; --i)
{
this.CompileFunctionParam(function, expr.SubExpr, i);
}
}
this.codeBlock.Append(new FunctionCallOpcode(function));
if (1 == this.compiler.nestingLevel && function.TestFlag(QueryFunctionFlag.UsesContextNode))
{
this.compiler.SetPushInitialContext(true);
}
}
private void CompileFunction(XPathFunctionExpr expr)
{
if (!this.CompileFunctionSpecial(expr))
{
QueryFunction function = expr.Function;
if (expr.SubExprCount > 0)
{
for (int i = expr.SubExpr.Count - 1; i >= 0; i--)
{
this.CompileFunctionParam(function, expr.SubExpr, i);
}
}
this.codeBlock.Append(new FunctionCallOpcode(function));
if ((1 == this.compiler.nestingLevel) && function.TestFlag(QueryFunctionFlag.UsesContextNode))
{
this.compiler.SetPushInitialContext(true);
}
}
}
