private static string GetMemberPathCore(Exp exp)
{
var sb = new StringBuilder();
var curExp = exp;
while (true)
{
switch (curExp.Type)
{
case ExpType.IdentifierExpression:
sb.Append(curExp.ToIdentifier().Identifier);
return(sb.ToString());
case ExpType.BinaryOperatorExpression:
var binOpExp = curExp.ToBinaryOperator();
if (binOpExp.Operator != MemberOperator ||
binOpExp.LeftOperand.Type != ExpType.IdentifierExpression)
{
return(null);
}
sb.Append($".{binOpExp.LeftOperand.ToIdentifier().Identifier}");
curExp = binOpExp.RightOperand;
break;
default:
return(null);
}
}
}
protected override List <AphidExpression> MutateCore(AphidExpression expression, out bool hasChanged)
{
LoadScriptExpression loadExp;
AphidExpression scriptExp;
if (expression.Type != AphidExpressionType.LoadScriptExpression)
{
hasChanged = false;
return(null);
}
else if ((loadExp = (LoadScriptExpression)expression).FileExpression.Type !=
AphidExpressionType.StringExpression)
{
var constantFolder = new ConstantFoldingMutator();
var mutated = constantFolder.Mutate(new List <AphidExpression> {
loadExp.FileExpression
});
if (mutated.Count != 1 || (scriptExp = mutated[0]).Type != AphidExpressionType.StringExpression)
{
hasChanged = false;
return(null);
//throw new AphidParserException("Invalid load script operand", loadExp);
}
}
else
{
scriptExp = loadExp.FileExpression;
}
var scriptStr = StringParser.Parse(((StringExpression)scriptExp).Value);
var script = Loader.FindScriptFile(_applicationDirectory, scriptStr);
if (!File.Exists(script))
{
throw new AphidParserException(
string.Format(
"Could not find script {0}",
scriptStr),
scriptExp);
}
Included.Add(script);
List <AphidExpression> ast;
if (AphidConfig.Current.ScriptCaching && !DisableCaching)
{
AphidByteCodeCache cache;
if (UseImplicitReturns)
{
cache = new AphidByteCodeCache(Loader.SearchPaths.ToArray());
}
else
{
cache = new AphidByteCodeCache(Loader.SearchPaths.ToArray(), 0x1);
}
ast = cache.Read(script, out var cacheSources);
for (var i = 0; i < cacheSources.Length; i++)
{
Included.Add(cacheSources[i].Name);
}
}
else
{
var code = AphidScript.Read(script);
ast = AphidParser.Parse(code, script, useImplicitReturns: UseImplicitReturns);
}
if (PerformCommonTransformations)
{
var mutatedAst = new PartialOperatorMutator().Mutate(ast);
mutatedAst = new AphidMacroMutator().Mutate(mutatedAst);
mutatedAst = new AphidPreprocessorDirectiveMutator().Mutate(mutatedAst);
mutatedAst = new ConstantFoldingMutator().Mutate(mutatedAst);
hasChanged = true;
return(mutatedAst);
}
hasChanged = true;
return(ast);
}
protected override List <AphidExpression> MutateCore(AphidExpression expression, out bool hasChanged)
{
LoadScriptExpression loadExp;
AphidExpression scriptExp;
if (expression.Type != AphidExpressionType.LoadScriptExpression)
{
hasChanged = false;
return(null);
}
else if ((loadExp = (LoadScriptExpression)expression).FileExpression.Type !=
AphidExpressionType.StringExpression)
{
var mutated = new ConstantFoldingMutator()
.MutateSingle(loadExp.FileExpression);
if ((scriptExp = mutated).Type != AphidExpressionType.StringExpression)
{
hasChanged = false;
return(null);
//throw new AphidParserException("Invalid load script operand", loadExp);
}
}
else
{
scriptExp = loadExp.FileExpression;
}
var scriptStr = StringParser.Parse(((StringExpression)scriptExp).Value);
if (!EnvironmentHelper.IsWindows)
{
scriptStr = scriptStr.ToLower();
}
var script = Loader.FindScriptFile(_applicationDirectory, scriptStr);
if (script == null && scriptExp.Filename != null)
{
script = Loader.FindScriptFile(Path.GetDirectoryName(scriptExp.Filename), scriptStr);
}
if (!File.Exists(script))
{
throw new AphidParserException(
string.Format(
"Could not find script {0}",
scriptStr),
scriptExp);
}
AddIncluded(script);
List <AphidExpression> ast;
if (AphidConfig.Current.ScriptCaching && !DisableCaching)
{
AphidByteCodeCache cache = UseImplicitReturns
? new AphidByteCodeCache(Loader.SearchPaths.ToArray())
{
DisableConstantFolding = false,
InlineScripts = true,
}
: new AphidByteCodeCache(Loader.SearchPaths.ToArray(), 0x1);
ast = cache.Read(script, out var cacheSources);
for (var i = 0; i < cacheSources.Length; i++)
{
AddIncluded(cacheSources[i].Name);
}
}
else
{
var code = AphidScript.Read(script);
ast = AphidParser.Parse(code, script, useImplicitReturns: UseImplicitReturns);
}
if (PerformCommonTransformations)
{
var mut = MutatorGroups.GetStandard().Mutate(ast);
hasChanged = true;
return(mut);
}
hasChanged = true;
return(ast);
}
protected override List <AphidExpression> MutateCore(AphidExpression expression, out bool hasChanged)
{
if (expression.Type != AphidExpressionType.BinaryOperatorExpression)
{
hasChanged = false;
return(null);
}
var binOp = (BinaryOperatorExpression)expression;
if (OperandsAre(binOp, AphidExpressionType.StringExpression) &&
binOp.Operator == AphidTokenType.AdditionOperator)
{
hasChanged = true;
var left = GetString(binOp.LeftOperand);
var right = GetString(binOp.RightOperand);
return(new List <AphidExpression>
{
new StringExpression(
"'" + left.Substring(1, left.Length - 2).Replace("\\\"", "\"") +
right.Substring(1, right.Length - 2).Replace("\\\"", "\"") + "'")
});
}
else if (OperandsAre(binOp, AphidExpressionType.NumberExpression))
{
var left = GetNumber(binOp.LeftOperand);
var right = GetNumber(binOp.RightOperand);
switch (binOp.Operator)
{
case AphidTokenType.AdditionOperator:
hasChanged = true;
return(new List <AphidExpression> {
new NumberExpression(left + right)
});
case AphidTokenType.MinusOperator:
hasChanged = true;
return(new List <AphidExpression> {
new NumberExpression(left - right)
});
case AphidTokenType.MultiplicationOperator:
hasChanged = true;
return(new List <AphidExpression> {
new NumberExpression(left * right)
});
case AphidTokenType.DivisionOperator:
if (right != 0)
{
hasChanged = true;
return(new List <AphidExpression> {
new NumberExpression(left / right)
});
}
hasChanged = false;
return(null);
default:
hasChanged = false;
return(null);
}
}
else
{
hasChanged = false;
return(null);
}
}
private static string GetString(AphidExpression exp) => ((StringExpression)exp).Value;
private static decimal GetNumber(AphidExpression exp) => ((NumberExpression)exp).Value;
public static AphidExpression FirstComplete(AphidExpression expression)
=> FirstComplete(new[] { expression });
public static AphidExpression FirstRange(AphidExpression expression)
=> FirstRange(new[] { expression });
public static AphidExpression FirstFilename(AphidExpression expression)
=> FirstFilename(new[] { expression });
public CallExpression(AphidExpression functionExpression, AphidExpression expression)
: this(functionExpression, new List <AphidExpression> {
expression
})
{
}
protected abstract void Visit(AphidExpression expression);
protected virtual void EndVisitNode(AphidExpression expression)
{
}
public void VisitExpression(AphidExpression node) => Visit(new List <AphidExpression> {
node
});
public static string GetMemberPath(Exp exp) => _memoizer.Call(GetMemberPathCore, exp);
public static bool IsMemberPath(Exp exp) => GetMemberPath(exp) != null;
//private string _code;
//private string _filename;
//public AphidCodeVisitor(string code)
// : this(code, null)
//{
//}
//public AphidCodeVisitor(string code, string filename)
//{
// _code = code;
// _filename = filename;
//}
protected override void EndVisit(List <AphidExpression> ast)
{
if (ast.Count < 2)
{
return;
}
AphidExpression prev = null, next = ast[1];
for (var i = 0; i < ast.Count; i++)
{
var node = ast[i];
if (node.Index == -1)
{
if (prev == null)
{
if (node.Code == null)
{
node.Code = next.Code;
}
if (node.Filename == null && next.Filename != null)
{
node.Filename = next.Filename;
}
node.Index = 0;
node.Length = next.Index;
}
else if (next == null)
{
if (node.Code == null)
{
node.Code = prev.Code;
}
if (node.Filename == null && prev.Filename != null)
{
node.Filename = prev.Filename;
}
node.Index = prev.Index + prev.Length;
node.Length = node.Code.Length - node.Index;
}
else
{
if (node.Code == null)
{
node.Code = prev.Code;
}
if (node.Filename == null && prev.Filename != null)
{
node.Filename = prev.Filename;
}
node.Index = prev.Index + prev.Length;
node.Length = next.Index - node.Index;
}
}
prev = ast[i];
next = i + 2 < ast.Count ? ast[i + 2] : null;
}
base.EndVisit(ast);
}