/// <summary>
/// Find expression type in function context
/// </summary>
/// <param name="expression">To evaluate</param>
/// <param name="context">In context</param>
/// <param name="inClass">In class</param>
/// <param name="complete">Complete (sub-expression) or partial (dot-completion) evaluation</param>
/// <returns>Class/member struct</returns>
static private ASResult EvalExpression(string expression, ASExpr context, ASClass inClass, bool complete)
{
DebugConsole.Trace("** EvalExpression");
DebugConsole.Trace(expression);
ASResult notFound = new ASResult();
Match mSub = null;
string[] tokens = expression.Split('.');
// eval first token
string token = tokens[0];
ASResult head;
if (token.StartsWith("#"))
{
mSub = re_sub.Match(token);
if (mSub.Success)
{
string subExpr = context.SubExpressions[ Convert.ToInt16(mSub.Groups["index"].Value) ];
// parse sub expression
subExpr = subExpr.Substring(1,subExpr.Length-2).Trim();
ASExpr subContext = new ASExpr();
subContext.SubExpressions = ExtractedSubex = new StringCollection();
subExpr = re_balancedParenthesis.Replace(subExpr, new MatchEvaluator(ExtractSubex));
Match m = re_refineExpression.Match(subExpr);
if (!m.Success) return notFound;
subExpr = re_dot.Replace( re_whiteSpace.Replace(m.Value, " ") , ".").Trim();
int space = subExpr.LastIndexOf(' ');
if (space > 0) subExpr = subExpr.Substring(space+1);
// eval sub expression
head = EvalExpression(subExpr, subContext, inClass, true);
if (head.Member != null)
head.Class = ASContext.FindClassFromName(head.Member.Type, head.Class);
}
else
{
token = token.Substring(token.IndexOf('~')+1);
head = EvalVariable(token, context, inClass);
}
}
else head = EvalVariable(token, context, inClass);
// no head, exit
if (head.IsNull()) return notFound;
if (!head.IsStatic)
DebugConsole.Trace(0+" "+token+":"+head.Class.ClassName);
else if (head.Member != null)
DebugConsole.Trace(0+" "+token+":"+head.Class.ClassName);
else
DebugConsole.Trace(0+" "+token+"="+head.Class.ClassName);
// eval tail
int n = tokens.Length;
if (!complete) n--;
// context
ASResult step = head;
ASClass resultClass = head.Class;
// look for static or dynamic members?
FlagType mask = (head.IsStatic) ? FlagType.Static : FlagType.Dynamic;
// look for public only members?
ASClass curClass = ASContext.CurrentClass;
if (!FriendClasses(curClass, step.Class))
mask |= FlagType.Public;
// explore
for (int i=1; i<n; i++)
{
resultClass = step.Class;
token = tokens[i];
DebugConsole.Trace(i+" "+token+" "+mask);
FindMember(token, resultClass, step, mask);
if (step.Class == null)
return step;
if (!step.IsStatic) //(resultClass.Flags != FlagType.Package) && ((step.Class.Flags & FlagType.Class) == 0))
{
if ((mask & FlagType.Static) > 0)
{
mask -= FlagType.Static;
mask |= FlagType.Dynamic;
}
}
if (!FriendClasses(curClass, step.Class))
mask |= FlagType.Public;
}
// eval package
if (step.Class.Flags == FlagType.Package)
{
DebugConsole.Trace("Complete package "+step.Class.ClassName);
step.Class.Package = ASContext.FindPackage(step.Class.ClassName, true);
}
return step;
}
/// <summary>
/// Complete object member
/// </summary>
/// <param name="Sci">Scintilla control</param>
/// <param name="autoHide">Don't keep the list open if the word does not match</param>
/// <returns>Auto-completion has been handled</returns>
static private bool HandleDotCompletion(ScintillaNet.ScintillaControl Sci, bool autoHide)
{
// get expression at cursor position
int position = Sci.CurrentPos;
ASExpr expr = GetExpression(Sci, position);
if (expr.Value == null)
return true;
int dotIndex = expr.Value.LastIndexOf('.');
if (dotIndex == 0) return true;
string tail = (dotIndex >= 0) ? expr.Value.Substring(dotIndex+1) : expr.Value;
DebugConsole.Trace("? "+dotIndex+" '"+expr.separator+"' "+expr.Keyword+" ."+tail);
// complete keyword
if (dotIndex < 0)
{
if (expr.Keyword == "new") return HandleNewCompletion(Sci, expr.Value, autoHide);
else if (expr.separator == ':') {
if (HandleColonCompletion(Sci, expr.Value, autoHide)) return true;
}
else if (expr.Keyword == "import")
return HandleImportCompletion(Sci, expr.Value, autoHide);
else if ((expr.Keyword == "extends") || (expr.Keyword == "implements"))
return HandleNewCompletion(Sci, expr.Value, autoHide);
}
else if ((expr.ContextBody == null) && (expr.separator != ':') && (expr.separator != '=')
&& (expr.Keyword != "import") && (expr.Keyword != "extends") && (expr.Keyword != "implements") )
return true;
// complete declaration
if ((expr.ContextBody == null) &&
((expr.separator == ';') || (expr.separator == ' ') || (expr.separator == '}') || (expr.separator == '{')))
{
if (expr.Value.IndexOf('#') >= 0) return true;
else
{
string text = " "+ASClassParser.CleanClassSource(Sci.GetText(Sci.CurrentPos), null)+" ";
if (Regex.IsMatch(text, "[\\s](class|interface)[\\s]"))
{
DebugConsole.Trace("Match class");
Match m = Regex.Match(text, "[\\s](class|interface)[\\s]+"+ASContext.CurrentClass.ClassName+"[\\s{]");
if (m.Success)
{
if (text.Substring(m.Index).IndexOf('{') > 0)
return HandleDeclarationCompletion(Sci, "function private public static var", tail, autoHide);
else if ((expr.Keyword != "extends") && (expr.Keyword != "implements"))
return HandleDeclarationCompletion(Sci, "extends implements", tail, autoHide);
}
else return true;
}
else if (expr.Keyword == "class") return true;
else if (dotIndex < 0) return HandleDeclarationCompletion(Sci, "import", tail, autoHide);
}
}
DebugConsole.Trace("** Complete expression '"+expr.separator+"' "+expr.Value.Length);
DebugConsole.Trace(expr.Value);
// Context
expr.LocalVars = ParseLocalVars(expr);
ASClass cClass = ASContext.CurrentClass;
ASResult result;
ASClass tmpClass;
if (dotIndex > 0)
{
// Expression before cursor
result = EvalExpression(expr.Value, expr, cClass, false);
if (result.IsNull())
return true;
tmpClass = result.Class;
}
else
{
result = new ASResult();
tmpClass = cClass;
}
ASMemberList mix = new ASMemberList();
// local vars are the first thing to try
if ((result.IsNull() || (dotIndex < 0)) && (expr.ContextFunction != null))
mix.Merge(expr.LocalVars);
// packages
if (tmpClass.Package != null)
mix.Merge(tmpClass.Package);
// get all members
FlagType mask = 0;
if ((expr.ContextFunction != null) || (expr.separator != ':'))
{
// user setting may ask to hide some members
bool limitMembers = ASContext.HideIntrinsicMembers || (autoHide && !ASContext.AlwaysShowIntrinsicMembers);
// static or dynamic members?
if (!result.IsNull())
mask = (result.IsStatic) ? FlagType.Static : FlagType.Dynamic;
// show private member of current class only only
if (!FriendClasses(cClass, tmpClass))
mask |= FlagType.Public;
DebugConsole.Trace("Filter members by: "+mask);
// explore members
bool classExtend = false;
if (!limitMembers || (tmpClass.ClassName != "Object"))
while ((tmpClass != null) && (!tmpClass.IsVoid()))
{
tmpClass.Sort();
// add members
mix.Merge(tmpClass.Methods, mask, classExtend);
// remove constructor methods
foreach(ASMember meth in tmpClass.Methods)
if ((meth.Flags & FlagType.Constructor) > 0) {
mix.Remove(meth);
break;
}
mix.Merge(tmpClass.Properties, mask, classExtend);
mix.Merge(tmpClass.Vars, mask, classExtend);
if (result.IsStatic && (tmpClass.Package != null))
{
DebugConsole.Trace("Class is package "+tmpClass.ClassName);
mix.Merge(tmpClass.Package, 0);
}
tmpClass = tmpClass.Extends;
if (tmpClass != null)
{
// static members not inherited in AS3
classExtend = tmpClass.IsAS3;
if (((tmpClass.Flags & FlagType.Intrinsic) == FlagType.Intrinsic)
&& (tmpClass.FileName.StartsWith(ASContext.TopLevelClassPath)))
{
if (limitMembers)
tmpClass = null;
}
}
}
}
// known classes / toplevel vars/methods
if (result.IsNull() || (dotIndex < 0))
{
mix.Merge(cClass.ToASMember());
mix.Merge(cClass.Imports);
mix.Merge(ASContext.TopLevel.Imports);
mix.Merge(ASContext.TopLevel.Methods);
mix.Merge(ASContext.TopLevel.Vars);
mix.Merge(ASContext.GetBasePackages());
}
// show
ArrayList list = new ArrayList();
foreach(ASMember member in mix)
list.Add(new MemberItem(member));
CompletionList.Show(list, autoHide, tail);
return true;
}
/// <summary>
/// Match token to a class' member
/// </summary>
/// <param name="token">To match</param>
/// <param name="inClass">In given class</param>
/// <param name="result">Class/Member struct</param>
static private void FindMember(string token, ASClass inClass, ASResult result, FlagType mask)
{
DebugConsole.Trace("FindMember "+token+" "+mask);
ASMember found = null;
ASClass tmpClass = inClass;
if (inClass == null) return;
// variable
int p = token.IndexOf('#');
if (p < 0)
{
// member
while ((tmpClass != null) && !tmpClass.IsVoid())
{
found = tmpClass.Properties.Search(token, mask);
if (found != null) break;
found = tmpClass.Vars.Search(token, mask);
if (found != null) break;
found = tmpClass.Methods.Search(token, mask);
if (found != null)
{
// static members not inherited in AS3
if (tmpClass != inClass && (found.Flags & FlagType.Static) > 0 && inClass.IsAS3)
return;
//DebugConsole.Trace("Method of "+tmpClass.ClassName);
result.Member = found;
if ((result.Member.Flags & FlagType.Constructor) > 0)
{
result.Class = tmpClass;
result.IsStatic = true;
}
else
{
result.inClass = tmpClass;
result.Class = ASContext.FindClassFromName("Function", null);
result.IsStatic = false; //((found.Flags & FlagType.Static) > 0);
}
//DebugConsole.Trace("Found static "+found.Name+":"+result.Class.ClassName+" in "+tmpClass.ClassName);
return;
}
tmpClass = tmpClass.Extends;
}
}
// method
else
{
token = token.Substring(0,p);
while ((tmpClass != null) && !tmpClass.IsVoid())
{
found = tmpClass.Methods.Search(token, mask);
if (found != null)
{
// static members not inherited in AS3
if (tmpClass != inClass && (found.Flags & FlagType.Static) > 0 && inClass.IsAS3)
return;
if ((found.Flags & FlagType.Constructor) > 0)
{
result.Class = tmpClass;
result.Member = found;
result.IsStatic = false;
return;
}
break;
}
tmpClass = tmpClass.Extends;
}
}
// result found!
if (found != null)
{
result.inClass = tmpClass;
result.Class = ASContext.FindClassFromName(found.Type, tmpClass);
result.Member = found;
result.IsStatic = false; //((found.Flags & FlagType.Static) > 0);
DebugConsole.Trace("Found "+found.Name+":"+result.Class.ClassName+" in "+tmpClass.ClassName);
return;
}
// try subpackages
else if (inClass.Package != null)
{
DebugConsole.Trace("Find "+token+" as "+inClass.ClassName+"."+token);
result.Class = ASContext.FindClassFromName(inClass.ClassName.Replace(System.IO.Path.DirectorySeparatorChar,'.')+"."+token, null);
if (!result.Class.IsVoid())
return;
// sub packages?
ASMemberList list = ASContext.FindPackage(inClass.ClassName, false);
if (list != null || inClass.Flags == FlagType.Package)
{
result.Class = new ASClass();
result.Class.ClassName = inClass.ClassName+System.IO.Path.DirectorySeparatorChar+token;
result.Class.Flags = FlagType.Package;
result.Class.Package = list;
result.IsStatic = true;
return;
}
}
// not found
result.Class = null;
result.Member = null;
DebugConsole.Trace(token+" not found in "+inClass.ClassName);
}
/*/// <summary>
/// List implicit known classes to a class: ie. the class, the extended class, implemented classes
/// UPDATE: MTASC doesn't automatically known the extended classes
/// </summary>
/// <param name="cClass">Reference</param>
/// <returns>List of members</returns>
static private ASMemberList GetContextClassesList(ASClass cClass)
{
// current class
ASMemberList list = new ASMemberList();
list.Add(cClass.ToASMember());
// inheritance
ASClass tmpClass = cClass.Extends;
while(tmpClass != null && !tmpClass.IsVoid()
&& !tmpClass.FileName.StartsWith(ASContext.TopLevelClassPath))
{
list.Add(tmpClass.ToASMember());
tmpClass = tmpClass.Extends;
}
if (list.Count > 1)
list.Sort();
// TODO add other implicitly known classes from the classpath, like interfaces
return list;
}*/
#endregion
#region tooltips formatting
static public string GetToolTipText(ASResult result)
{
if ((result.Member != null) && (result.inClass != null))
{
string text = MemberTooltipText(result.Member, result.inClass);
if (result.inClass == ASContext.TopLevel)
text = text.Substring(0, text.IndexOf('\n'));
return text;
}
else if ((result.Member != null) && ((result.Member.Flags & FlagType.Constructor) != FlagType.Constructor))
{
return ASClass.MemberDeclaration(result.Member);
}
else if (result.inClass != null)
{
return ASClass.ClassDeclaration(result.inClass);
}
else if (result.Class != null)
{
return ASClass.ClassDeclaration(result.Class);
}
else return null;
}
/// <summary>
/// Find variable type in function context
/// </summary>
/// <param name="token">Variable name</param>
/// <param name="context">In context</param>
/// <param name="inClass">In class</param>
/// <returns>Class/member struct</returns>
static private ASResult EvalVariable(string token, ASExpr context, ASClass inClass)
{
DebugConsole.Trace("EvalVariable "+token);
ASResult result = new ASResult();
// local vars
if (context.LocalVars != null)
foreach(ASMember var in context.LocalVars)
{
if (var.Name == token)
{
result.inClass = null;
result.Class = ASContext.FindClassFromName(var.Type, inClass);
result.Member = var;
return result;
}
}
// method parameters
if (context.ContextFunction != null)
{
Match param = Regex.Match(context.ContextFunction, "[(,][\\s]*"+Regex.Escape(token)+"[\\s:,)]");
if (param.Success)
{
//DebugConsole.Trace("Method param "+token);
param = Regex.Match(context.ContextFunction, "[(,][\\s]*"+Regex.Escape(token)+"[\\s]*:[\\s]*(?<type>[^\\s,)]*)");
if (param.Success && (param.Groups["type"].Value.Length > 0))
{
//DebugConsole.Trace("Type "+param.Groups["type"].Value);
result.Class = ASContext.FindClassFromName(param.Groups["type"].Value, inClass);
}
return result;
}
}
// class members
FindMember(token, inClass, result, 0);
if (!result.IsNull())
return result;
// top-level elements
if (!ASContext.TopLevel.IsVoid())
{
FindMember(token, ASContext.TopLevel, result, 0);
if (!result.IsNull())
return result;
// special _levelN
if (token.StartsWith("_") && re_level.IsMatch(token))
{
result.Class = ASContext.FindClassFromName("MovieClip", null);
return result;
}
}
// classes
int p = token.IndexOf('#');
string ctoken = (p > 0) ? token.Substring(0,p) : token;
ASClass aClass = ASContext.FindClassFromName(ctoken, inClass);
if (!aClass.IsVoid())
{
result.Class = aClass;
result.IsStatic = (p < 0);
return result;
}
// packages folders
ASMemberList package = ASContext.FindPackage(token, false);
if (package != null)
{
result.Class = new ASClass();
result.Class.ClassName = token;
result.Class.Flags = FlagType.Package;
result.Class.Package = package;
result.IsStatic = true;
}
return result;
}
