internal override bool Build(ref CodeNode _this, int depth, System.Collections.Generic.Dictionary<string, VariableDescriptor> variables, _BuildState state, CompilerMessageCallback message, FunctionStatistics statistic, Options opts)
{
return false;
}
internal override bool Build(ref CodeNode _this, int depth, Dictionary<string, VariableDescriptor> variables, _BuildState state, CompilerMessageCallback message, FunctionStatistics statistic, Options opts)
{
depth = System.Math.Max(1, depth);
Parser.Build(ref body, depth, variables, state | _BuildState.InLoop, message, statistic, opts);
Parser.Build(ref condition, 2, variables, state | _BuildState.InLoop, message, statistic, opts);
try
{
if (allowRemove
&& (opts & Options.SuppressUselessExpressionsElimination) == 0
&& (condition is Constant || (condition as Expressions.Expression).IsContextIndependent))
{
if ((bool)condition.Evaluate(null))
_this = new InfinityLoop(body, labels);
else if (labels.Length == 0)
_this = body;
condition.Eliminated = true;
}
}
#if PORTABLE
catch
{
internal override bool Build(ref CodeNode _this, int depth, Dictionary<string, VariableDescriptor> variables, _BuildState state, CompilerMessageCallback message, FunctionStatistics statistic, Options opts)
{
depth = System.Math.Max(1, depth);
Parser.Build(ref body, depth, variables, state | _BuildState.Conditional | _BuildState.InLoop, message, statistic, opts);
Parser.Build(ref condition, 2, variables, state | _BuildState.InLoop, message, statistic, opts);
if ((opts & Options.SuppressUselessExpressionsElimination) == 0 && condition is ToBool)
{
if (message == null)
message(MessageLevel.Warning, new CodeCoordinates(0, condition.Position, 2), "Useless conversion. Remove double negation in condition");
condition = (condition as Expression).first;
}
try
{
if (allowRemove && (condition is Constant || (condition is Expression && (condition as Expression).IsContextIndependent)))
{
if ((bool)condition.Evaluate(null))
{
if ((opts & Options.SuppressUselessExpressionsElimination) == 0)
_this = new InfinityLoop(body, labels);
}
else if ((opts & Options.SuppressUselessStatementsElimination) == 0)
{
_this = null;
Eliminated = true;
body.Eliminated = true;
}
condition.Eliminated = true;
}
else if ((opts & Options.SuppressUselessExpressionsElimination) == 0
&& ((condition is Json && (condition as Json).Fields.Length == 0)
|| (condition is ArrayExpression && (condition as ArrayExpression).Elements.Count == 0)))
{
_this = new InfinityLoop(body, labels);
condition.Eliminated = true;
}
}
#if PORTABLE
catch
{