public SetVariableAction(ParseInfo parseInfo, Scope scope, DeltinScriptParser.VarsetContext varsetContext)
{
IExpression variableExpression = parseInfo.GetExpression(scope, varsetContext.var);
// Get the variable being set.
VariableResolve = new VariableResolve(new VariableResolveOptions(), variableExpression, DocRange.GetRange(varsetContext), parseInfo.Script.Diagnostics);
// Get the operation.
if (varsetContext.statement_operation() != null)
{
Operation = varsetContext.statement_operation().GetText();
// If there is no value, syntax error.
if (varsetContext.val == null)
{
parseInfo.Script.Diagnostics.Error("Expected an expression.", DocRange.GetRange(varsetContext).end.ToRange());
}
// Parse the value.
else
{
Value = parseInfo.GetExpression(scope, varsetContext.val);
}
}
else if (varsetContext.INCREMENT() != null)
{
Operation = "++";
}
else if (varsetContext.DECREMENT() != null)
{
Operation = "--";
}
}
public override object VisitVarset(DeltinScriptParser.VarsetContext context)
{
if (context.statement_operation() != null &&
(context.expr().Length == 0 ||
context.children.IndexOf(context.expr().Last()) <
context.children.IndexOf(context.statement_operation())
))
{
_diagnostics.Error("Expected expression.", new Location(_file, Range.GetRange(context)));
}
return(base.VisitVarset(context));
}
public VarSetNode(DeltinScriptParser.VarsetContext context, BuildAstVisitor visitor) : base(new Location(visitor.file, Range.GetRange(context)))
{
Variable = visitor.VisitExpr(context.var);
Node[] index = new Node[context.array()?.expr().Length ?? 0];
for (int i = 0; i < index.Length; i++)
{
index[i] = visitor.VisitExpr(context.array().expr(i));
}
if (context.val != null)
{
Value = visitor.VisitExpr(context.val);
}
Operation = context.statement_operation()?.GetText();
if (Operation == null)
{
if (context.INCREMENT() != null)
{
Operation = "++";
}
else if (context.DECREMENT() != null)
{
Operation = "--";
}
}
}
public override Node VisitVarset(DeltinScriptParser.VarsetContext context)
{
IExpressionNode target = context.expr().Length == 2 ? (IExpressionNode)Visit(context.expr()[0]) : null;
string variable = context.PART().GetText();
IExpressionNode index = null;
if (context.array() != null)
{
index = (IExpressionNode)Visit(context.array().expr());
}
string operation = context.statement_operation().GetText();
IExpressionNode value = (IExpressionNode)Visit(context.expr().Last());
Node node = new VarSetNode(target, variable, index, operation, value, Range.GetRange(context));
CheckRange(node);
return(node);
}
public SetVariableAction(ParseInfo parseInfo, Scope scope, DeltinScriptParser.VarsetContext varsetContext)
{
IExpression variableExpression = DeltinScript.GetExpression(parseInfo, scope, varsetContext.var);
DocRange notAVariableRange = null;
DocRange variableRange = null;
if (variableExpression is CallVariableAction)
{
SetVariable = (CallVariableAction)variableExpression;
variableRange = DocRange.GetRange(varsetContext.var);
}
else if (variableExpression is ExpressionTree)
{
Tree = (ExpressionTree)variableExpression;
if (Tree.Completed)
{
if (Tree.Result is CallVariableAction == false)
{
notAVariableRange = Tree.ExprContextTree.Last().Range;
}
else
{
SetVariable = (CallVariableAction)Tree.Result;
variableRange = Tree.ExprContextTree.Last().Range;
}
}
}
else if (variableExpression != null)
{
notAVariableRange = DocRange.GetRange(varsetContext.var);
}
if (notAVariableRange != null)
{
parseInfo.Script.Diagnostics.Error("Expected a variable.", notAVariableRange);
}
if (SetVariable != null && !SetVariable.Calling.Settable())
{
parseInfo.Script.Diagnostics.Error($"The variable '{SetVariable.Calling.Name}' cannot be set to.", variableRange);
}
if (varsetContext.statement_operation() != null)
{
Operation = varsetContext.statement_operation().GetText();
if (varsetContext.val == null)
{
parseInfo.Script.Diagnostics.Error("Expected an expression.", DocRange.GetRange(varsetContext).end.ToRange());
}
else
{
Value = DeltinScript.GetExpression(parseInfo, scope, varsetContext.val);
}
}
else if (varsetContext.INCREMENT() != null)
{
Operation = "++";
}
else if (varsetContext.DECREMENT() != null)
{
Operation = "--";
}
}