private ITreeContextPart[] Flatten(ScriptFile script, DeltinScriptParser.E_expr_treeContext exprContext)
{
var exprList = new List <ITreeContextPart>();
Flatten(script, exprContext, exprList);
return(exprList.ToArray());
// Recursive flatten function.
void Flatten(ScriptFile script, DeltinScriptParser.E_expr_treeContext exprContext, List <ITreeContextPart> exprList)
{
// If the expression is a Tree, recursively flatten.
if (exprContext.expr() is DeltinScriptParser.E_expr_treeContext)
{
Flatten(script, (DeltinScriptParser.E_expr_treeContext)exprContext.expr(), exprList);
}
// Otherwise, add the expression to the list.
else
{
// Get the function.
if (exprContext.expr() is DeltinScriptParser.E_methodContext method)
{
exprList.Add(new FunctionPart(method.method()));
}
// Get the variable.
else if (exprContext.expr() is DeltinScriptParser.E_variableContext variable)
{
exprList.Add(new VariableOrTypePart(variable.variable()));
}
// Get the expression.
else
{
exprList.Add(new ExpressionPart(exprContext.expr()));
}
}
// Syntax error if there is no method or variable.
if (exprContext.method() == null && exprContext.variable() == null)
{
script.Diagnostics.Error("Expected expression.", DocRange.GetRange(exprContext.SEPERATOR()));
_trailingSeperator = exprContext.SEPERATOR();
}
else
{
// Get the method.
if (exprContext.method() != null)
{
exprList.Add(new FunctionPart(exprContext.method()));
}
// Get the variable.
if (exprContext.variable() != null)
{
exprList.Add(new VariableOrTypePart(exprContext.variable()));
}
}
}
}
private TreeContextPart[] Flatten(ScriptFile script, DeltinScriptParser.E_expr_treeContext exprContext)
{
var exprList = new List <TreeContextPart>();
Flatten(script, exprContext, exprList);
return(exprList.ToArray());
void Flatten(ScriptFile script, DeltinScriptParser.E_expr_treeContext exprContext, List <TreeContextPart> exprList)
{
if (exprContext.expr() is DeltinScriptParser.E_expr_treeContext)
{
Flatten(script, (DeltinScriptParser.E_expr_treeContext)exprContext.expr(), exprList);
}
else
{
exprList.Add(new TreeContextPart(exprContext.expr()));
}
if (exprContext.method() == null && exprContext.variable() == null)
{
script.Diagnostics.Error("Expected expression.", DocRange.GetRange(exprContext.SEPERATOR()));
_trailingSeperator = exprContext.SEPERATOR();
}
else
{
if (exprContext.method() != null)
{
exprList.Add(new TreeContextPart(exprContext.method()));
}
if (exprContext.variable() != null)
{
exprList.Add(new TreeContextPart(exprContext.variable()));
}
}
}
}
