public override Value ReadValue(RunScope scope)
{
if (_arrayAccessExps != null)
{
foreach (var exp in _arrayAccessExps)
{
var accessScope = scope.Clone();
exp.ReadValue(accessScope);
scope.Merge(accessScope);
}
}
if (_subscriptAccessExps != null)
{
foreach (var exp in _subscriptAccessExps)
{
var accessScope = scope.Clone();
exp.ReadValue(accessScope);
scope.Merge(accessScope);
}
}
if (_def is VariableDefinition)
{
var v = scope.GetVariable(Text);
if (v != null)
{
v.IsUsed = true;
if (v.IsInitialized != TriState.True && !scope.SuppressInitializedCheck)
{
ReportError(Span, CAError.CA0110, v.Name); // Use of uninitialized variable '{0}'.
}
return(v.Value);
}
return(base.ReadValue(scope));
}
else if (_def is EnumOptionDefinition)
{
return(new EnumValue(_def.DataType, _def.Name));
}
else if (_def is TableDefinition || _def is ExtractTableDefinition)
{
return(new TableValue(_def.DataType, _def.Name));
}
else if (_def is RelIndDefinition)
{
return(new IndRelValue(_def.DataType, _def.Name));
}
else if (_def.CanRead && _def.DataType != null)
{
return(Value.CreateUnknownFromDataType(_def.DataType));
}
return(base.ReadValue(scope));
}
public override void WriteValue(RunScope scope, Value value)
{
if (_arrayAccessExps != null)
{
foreach (var exp in _arrayAccessExps)
{
var accessScope = scope.Clone();
exp.ReadValue(accessScope);
scope.Merge(accessScope);
}
}
if (_subscriptAccessExps != null)
{
foreach (var exp in _subscriptAccessExps)
{
var accessScope = scope.Clone();
exp.ReadValue(accessScope);
scope.Merge(accessScope);
}
}
if (_def is VariableDefinition)
{
var v = scope.GetVariable(Text);
if (v != null)
{
v.Value = v.Value.Convert(scope, Span, value);
v.IsInitialized = TriState.True;
return;
}
base.WriteValue(scope, value);
}
else if (_def.CanWrite)
{
}
else
{
base.WriteValue(scope, value);
}
}