public override Verb CreateVerb(string[] tokens)
{
var whitespaces = tokens[1];
statementIndex = position + whitespaces.Length;
var tokens2Length = tokens[2].Length;
var visibilityName = tokens[2].Trim();
visibility = ParseVisibility(visibilityName);
var tokens3Length = tokens[3].Length;
@override = tokens3Length > 0;
var tokens4Length = tokens[4].Length;
var memoize = tokens4Length > 0;
var tokens5Length = tokens[5].Length;
var type = tokens[5].Trim();
var tokens6Length = tokens[6].Length;
functionName = LongToMangledPrefix(type, tokens[6].Trim());
var parameterType = tokens[7];
var parametersType = parameterType switch
{
"(" => ParametersType.Standard,
"[" => ParametersType.Pattern,
_ => ParametersType.Message
};
var xMethod = false;
var isDef = true;
lockedDown = false;
var isInit = false;
var isCoFunc = false;
switch (type)
{
case "cofunc":
isCoFunc = true;
break;
case "xfunc":
xMethod = true;
break;
case "pure":
lockedDown = true;
break;
case "init":
isDef = false;
isInit = true;
break;
}
if (lockedDown)
{
type.Must().Not.Equal("set").OrThrow(VerboseName, () => "Setters not allowed in views");
}
if (InClassDefinition)
{
xMethod.Must().Not.BeTrue().OrThrow(VerboseName, () => "xfunc not allowed inside class definitions");
}
else
{
visibilityName.Must().BeEmpty()
.OrThrow(VerboseName, () => $"Visibility specifier {visibility} not allowed allowed outside of class definition");
isDef.Must().BeTrue().OrThrow(VerboseName, () => $"{type} specifier not allowed outside of a class definition");
}
Color(position, whitespaces.Length, Whitespaces);
Color(tokens2Length, KeyWords);
Color(tokens3Length, KeyWords);
Color(tokens4Length, KeyWords);
Color(tokens5Length, KeyWords);
var invokable = parametersType == ParametersType.Standard || parametersType == ParametersType.Pattern;
var entityType = invokable ? Invokeables : Messaging;
Color(tokens6Length, entityType);
Color(parameterType.Length, Structures);
var index = NextPosition;
var parametersParser = new ParametersParser(parametersType);
if (parametersParser.Parse(source, index).If(out parameters, out index))
{
if (source.Drop(index).Keep(1) == "(")
{
var curriedFunctionParser = new CurriedFunctionParser(functionName, parameters, visibility, @override);
if (curriedFunctionParser.Scan(source, index))
{
overridePosition = curriedFunctionParser.Position;
return(curriedFunctionParser.Verb);
}
}
}
else
{
var builder = new StringBuilder();
var messageParameterParser = new MessageParameterParser();
var variableParser = new VariableParser();
var parameterList = new List <Parameter>();
if (variableParser.Scan(source, index))
{
var variable = (Variable)variableParser.Value;
var parameter = new Parameter(variable.Name);
builder.Append(functionName);
builder.Append("_");
parameterList.Add(parameter);
index = variableParser.Position;
}
else
{
return(null);
}
while (messageParameterParser.Scan(source, index))
{
var parameter = new Parameter(messageParameterParser.ParameterName);
parameterList.Add(parameter);
builder.Append(messageParameterParser.MessageName);
builder.Append("_");
index = messageParameterParser.Result.Position;
}
functionName = builder.ToString();
parameters = new Parameters(parameterList);
}
parameters.Must().Not.BeNull().OrThrow(VerboseName, () => "Parameters malformed");
var currying = parametersParser.Currying;
functionBodyParser.ExtractCondition = parametersType == ParametersType.Pattern;
if (functionBodyParser.Parse(source, index).If(out var block, out var i))
{
index = i;
var condition = functionBodyParser.Condition;
var where = functionBodyParser.Where;
Verb verb;
if (isInit)
{
verb = createInitializer(index, block);
result.Value = lambda;
singleLine = !functionBodyParser.MultiCapable;
return(verb);
}
if (isCoFunc)
{
overridePosition = index;
var builder = new CofunctionBuilder(functionName, parameters, block);
return(builder.Generate());
}
verb = createFunction(index, currying, condition, memoize, lockedDown, block);
lambda.XMethod = xMethod;
lambda.Expand = type == "rec";
result.Value = lambda;
singleLine = !functionBodyParser.MultiCapable;
if (lambda.Where == null)
{
lambda.Where = where;
}
return(verb);
}
return(null);
}
public override Verb CreateVerb(string[] tokens)
{
var whitespaces = tokens[1];
statementIndex = position + whitespaces.Length;
var tokens2Length = tokens[2].Length;
var visibilityName = tokens[2].Trim();
visibility = ParseVisibility(visibilityName);
var tokens3Length = tokens[3].Length;
_override = tokens3Length > 0;
var tokens4Length = tokens[4].Length;
var memoize = tokens4Length > 0;
var tokens5Length = tokens[5].Length;
var type = tokens[5].Trim();
var tokens6Length = tokens[6].Length;
functionName = LongToMangledPrefix(type, tokens[6].Trim());
var parameterType = tokens[7];
var parametersType = ParametersType.Message;
switch (parameterType)
{
case "(":
parametersType = ParametersType.Standard;
break;
case "[":
parametersType = ParametersType.Pattern;
break;
}
var xMethod = false;
var isDef = true;
lockedDown = false;
var isInit = false;
var isCoFunc = false;
switch (type)
{
case "cofunc":
isCoFunc = true;
break;
case "xfunc":
xMethod = true;
break;
case "pure":
lockedDown = true;
break;
case "init":
isDef = false;
isInit = true;
break;
}
Reject(LockedDown && type == "set", VerboseName, "Setters not allowed in views");
Reject(!InClassDefinition && visibilityName.IsNotEmpty(), VerboseName,
$"Visibility specifier {visibility} not allowed allowed outside of class definition");
Reject(!InClassDefinition && !isDef, VerboseName, $"{type} specifier not allowed outside of a class definition");
Reject(InClassDefinition && xMethod, VerboseName, "xfunc not allowed inside class definitions");
Color(position, whitespaces.Length, Whitespaces);
Color(tokens2Length, KeyWords);
Color(tokens3Length, KeyWords);
Color(tokens4Length, KeyWords);
Color(tokens5Length, KeyWords);
var invokable = parametersType == ParametersType.Standard || parametersType == ParametersType.Pattern;
var entityType = invokable ? Invokeables : Messaging;
Color(tokens6Length, entityType);
Color(parameterType.Length, Structures);
var index = NextPosition;
var parametersParser = new ParametersParser(parametersType);
if (parametersParser.Parse(source, index).If(out var parsed))
{
int newIndex;
(parameters, newIndex) = parsed;
index = newIndex;
if (source.Skip(index).Take(1) == "(")
{
var curriedFunctionParser = new CurriedFunctionParser(functionName, parameters, visibility, _override);
if (curriedFunctionParser.Scan(source, index))
{
overridePosition = curriedFunctionParser.Position;
return(curriedFunctionParser.Verb);
}
}
}
else
{
var builder = new StringBuilder();
var messageParameterParser = new MessageParameterParser();
var variableParser = new VariableParser();
var parameterList = new List <Parameter>();
if (variableParser.Scan(source, index))
{
var variable = (Variable)variableParser.Value;
var parameter = new Parameter(variable.Name);
builder.Append(functionName);
builder.Append("_");
parameterList.Add(parameter);
index = variableParser.Position;
}
else
{
return(null);
}
while (messageParameterParser.Scan(source, index))
{
var parameter = new Parameter(messageParameterParser.ParameterName);
parameterList.Add(parameter);
builder.Append(messageParameterParser.MessageName);
builder.Append("_");
index = messageParameterParser.Result.Position;
}
functionName = builder.ToString();
parameters = new Parameters(parameterList);
}
RejectNull(parameters, VerboseName, "Parameters malformed");
var currying = parametersParser.Currying;
functionBodyParser.ExtractCondition = parametersType == ParametersType.Pattern;
if (functionBodyParser.Parse(source, index).If(out var block, out var i))
{
index = i;
var condition = functionBodyParser.Condition;
var where = functionBodyParser.Where;
Verb verb;
if (isInit)
{
verb = createInitializer(index, block);
result.Value = lambda;
singleLine = !functionBodyParser.MultiCapable;
return(verb);
}
if (isCoFunc)
{
overridePosition = index;
var builder = new CofunctionBuilder(functionName, parameters, block);
return(builder.Generate());
}
verb = createFunction(index, currying, condition, memoize, lockedDown, block);
lambda.XMethod = xMethod;
lambda.Expand = type == "rec";
result.Value = lambda;
singleLine = !functionBodyParser.MultiCapable;
if (lambda.Where == null)
{
lambda.Where = where;
}
return(verb);
}
return(null);
/* return functionBodyParser.Parse(source, index).Map((block, i) =>
* {
* index = i;
* var condition = functionBodyParser.Condition;
* var where = functionBodyParser.Where;
* Verb verb;
* if (isInit)
* {
* verb = createInitializer(index, block);
* result.Value = lambda;
* singleLine = !functionBodyParser.MultiCapable;
* return verb;
* }
*
* if (isCoFunc)
* {
* overridePosition = index;
* var builder = new CofunctionBuilder(functionName, parameters, block);
* return builder.Generate();
* }
*
* verb = createFunction(index, currying, condition, memoize, lockedDown, block);
* lambda.XMethod = xMethod;
* lambda.Expand = type == "rec";
* result.Value = lambda;
* singleLine = !functionBodyParser.MultiCapable;
* if (lambda.Where == null)
* lambda.Where = where;
* return verb;
* }, () => null);*/
}
