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|
// <file>
// <copyright see="prj:///doc/copyright.txt"/>
// <license see="prj:///doc/license.txt"/>
// <owner name="Andrea Paatz" email="andrea@icsharpcode.net"/>
// <version value="$version"/>
// </file>
using System;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Drawing;
using MonoDevelop.Core;
using MonoDevelop.Projects.Parser;
using MonoDevelop.Projects;
using CSharpBinding.Parser.SharpDevelopTree;
using ICSharpCode.NRefactory.Visitors;
using ICSharpCode.NRefactory.Parser;
using ICSharpCode.NRefactory.Ast;
using ICSharpCode.NRefactory;
using ClassType = MonoDevelop.Projects.Parser.ClassType;
namespace CSharpBinding.Parser
{
class Resolver
{
IParserContext parserContext;
ICompilationUnit currentUnit;
string currentFile;
IClass callingClass;
IMethod callingMethod;
IIndexer callingIndexer;
IProperty callingProperty;
bool callingClassChecked;
bool callingMethodChecked;
bool callingIndexerChecked;
bool callingPropertyChecked;
LookupTableVisitor lookupTableVisitor;
int caretLine;
int caretColumn;
public Resolver (IParserContext parserContext)
{
this.parserContext = parserContext;
}
public IParserContext ParserContext {
get {
return parserContext;
}
}
public ICompilationUnit CompilationUnit {
get {
return currentUnit;
}
}
public IClass CallingClass {
get {
return callingClass;
}
}
bool showStatic = false;
public bool ShowStatic {
get {
return showStatic;
}
set {
showStatic = value;
}
}
void SetCursorPosition (int caretLineNumber, int caretColumn)
{
this.caretLine = caretLineNumber;
this.caretColumn = caretColumn;
callingClass = null;
callingMethod = null;
callingIndexer = null;
callingProperty = null;
callingClassChecked = callingPropertyChecked = callingMethodChecked = callingIndexerChecked = false;
}
public IReturnType internalResolve (string expression, int caretLineNumber, int caretColumn, string fileName, string fileContent)
{
//Console.WriteLine("Start Resolving");
if (expression == null) {
return null;
}
expression = expression.TrimStart(null);
if (expression == "") {
return null;
}
SetCursorPosition (caretLineNumber, caretColumn);
IParseInformation parseInfo = parserContext.GetParseInformation(fileName);
ICSharpCode.NRefactory.Ast.CompilationUnit fileCompilationUnit = parseInfo.MostRecentCompilationUnit.Tag as ICSharpCode.NRefactory.Ast.CompilationUnit;
if (fileCompilationUnit == null) {
// ICSharpCode.NRefactory.Parser.Parser fileParser = new ICSharpCode.NRefactory.Parser.Parser();
// fileParser.Parse(new Lexer(new StringReader(fileContent)));
Console.WriteLine("Warning: no parse information!");
return null;
}
/*
//// try to find last expression in original string, it could be like " if (act!=null) act"
//// in this case only "act" should be parsed as expression
!!is so!! don't change things that work
Expression expr=null; // tentative expression
Lexer l=null;
ICSharpCode.NRefactory.Parser.Parser p = new ICSharpCode.NRefactory.Parser.Parser();
while (expression.Length > 0) {
l = new Lexer(new StringReader(expression));
expr = p.ParseExpression(l);
if (l.LookAhead.val != "" && expression.LastIndexOf(l.LookAhead.val) >= 0) {
if (expression.Substring(expression.LastIndexOf(l.LookAhead.val) + l.LookAhead.val.Length).Length > 0)
expression=expression.Substring(expression.LastIndexOf(l.LookAhead.val) + l.LookAhead.val.Length).Trim();
else {
expression=l.LookAhead.val.Trim();
l=new Lexer(new StringReader(expression));
expr=p.ParseExpression(l);
break;
}
} else {
if (l.Token.val!="" || expr!=null) break;
}
}
//// here last subexpression should be fixed in expr
if it should be changed in expressionfinder don't fix it here
*/
ICSharpCode.NRefactory.IParser p = ICSharpCode.NRefactory.ParserFactory.CreateParser (SupportedLanguage.CSharp, new StringReader(expression));
Expression expr = p.ParseExpression();
if (expr == null) {
return null;
}
lookupTableVisitor = new LookupTableVisitor (SupportedLanguage.CSharp);
lookupTableVisitor.VisitCompilationUnit (fileCompilationUnit, null);
TypeVisitor typeVisitor = new TypeVisitor(this);
CSharpVisitor cSharpVisitor = new CSharpVisitor();
currentUnit = (ICompilationUnit)cSharpVisitor.VisitCompilationUnit (fileCompilationUnit, null);
currentFile = fileName;
if (currentUnit != null) {
callingClass = GetInnermostClass();
// Console.WriteLine("CallingClass is " + callingClass == null ? "null" : callingClass.Name);
}
// No completion inside enums
if (callingClass != null && callingClass.ClassType == ClassType.Enum)
return null;
//Console.WriteLine("expression = " + expr.ToString());
IReturnType type = expr.AcceptVisitor(typeVisitor, null) as IReturnType;
//Console.WriteLine("type visited");
if (type == null || type.PointerNestingLevel != 0) {
// Console.WriteLine("Type == null || type.PointerNestingLevel != 0");
if (type != null) {
//Console.WriteLine("PointerNestingLevel is " + type.PointerNestingLevel);
} else {
//Console.WriteLine("Type == null");
}
//// when type is null might be file needs to be reparsed - some vars were lost
fileCompilationUnit = parserContext.ParseFile (fileName, fileContent).MostRecentCompilationUnit.Tag
as ICSharpCode.NRefactory.Ast.CompilationUnit;
lookupTableVisitor.VisitCompilationUnit (fileCompilationUnit,null);
currentUnit = (ICompilationUnit)cSharpVisitor.VisitCompilationUnit (fileCompilationUnit, null);
if (currentUnit != null) {
// Reset cursor position data
SetCursorPosition (caretLineNumber, caretColumn);
callingClass = GetInnermostClass();
}
type=expr.AcceptVisitor(typeVisitor,null) as IReturnType;
if (type==null) return null;
}
//Console.WriteLine("Here: Type is " + type.FullyQualifiedName);
return type;
}
public IClass GetCallingClass (int line, int col, string fileName, bool onlyClassDeclaration)
{
IParseInformation parseInfo = parserContext.GetParseInformation (fileName);
ICSharpCode.NRefactory.Ast.CompilationUnit fileCompilationUnit = parseInfo.MostRecentCompilationUnit.Tag as ICSharpCode.NRefactory.Ast.CompilationUnit;
if (fileCompilationUnit == null)
return null;
CSharpVisitor cSharpVisitor = new CSharpVisitor();
currentUnit = (ICompilationUnit)cSharpVisitor.VisitCompilationUnit (fileCompilationUnit, null);
currentFile = fileName;
SetCursorPosition (line, col);
callingClass = GetInnermostClass();
if (callingClass == null)
return null;
if (onlyClassDeclaration && GetMethod () != null)
return null;
return callingClass;
}
public IClass ResolveExpressionType (ICSharpCode.NRefactory.Ast.CompilationUnit fileCompilationUnit, Expression expr, int line, int col)
{
CSharpVisitor cSharpVisitor = new CSharpVisitor();
currentUnit = (ICompilationUnit)cSharpVisitor.VisitCompilationUnit (fileCompilationUnit, null);
currentFile = null;
SetCursorPosition (line, col);
callingClass = GetInnermostClass();
lookupTableVisitor = new LookupTableVisitor (SupportedLanguage.CSharp);
lookupTableVisitor.VisitCompilationUnit (fileCompilationUnit, null);
TypeVisitor typeVisitor = new TypeVisitor (this);
IReturnType type = expr.AcceptVisitor (typeVisitor, null) as IReturnType;
if (type != null)
return SearchType (type, currentUnit);
else
return null;
}
public ILanguageItem ResolveIdentifier (IParserContext parserContext, string id, int line, int col, string fileName, string fileContent)
{
IParseInformation parseInfo = parserContext.GetParseInformation (fileName);
ICSharpCode.NRefactory.Ast.CompilationUnit fileCompilationUnit = parseInfo.MostRecentCompilationUnit.Tag as ICSharpCode.NRefactory.Ast.CompilationUnit;
currentFile = fileName;
if (fileCompilationUnit == null)
return null;
return ResolveIdentifier (fileCompilationUnit, id, line, col);
}
public ILanguageItem ResolveIdentifier (ICSharpCode.NRefactory.Ast.CompilationUnit fileCompilationUnit, string id, int line, int col)
{
ICSharpCode.NRefactory.IParser p = ICSharpCode.NRefactory.ParserFactory.CreateParser (SupportedLanguage.CSharp, new StringReader(id));
Expression expr = p.ParseExpression ();
if (expr == null)
return null;
CSharpVisitor cSharpVisitor = new CSharpVisitor();
currentUnit = (ICompilationUnit)cSharpVisitor.VisitCompilationUnit (fileCompilationUnit, null);
SetCursorPosition (line, col);
callingClass = GetInnermostClass();
lookupTableVisitor = new LookupTableVisitor(SupportedLanguage.CSharp);
lookupTableVisitor.VisitCompilationUnit (fileCompilationUnit, null);
LanguageItemVisitor itemVisitor = new LanguageItemVisitor (this);
ILanguageItem item = expr.AcceptVisitor (itemVisitor, null) as ILanguageItem;
if (item == null && expr is BinaryOperatorExpression && !id.EndsWith ("()")) {
// The expression parser does not correctly parse individual generic type names.
// Try resolving again but using a more complex expression.
return ResolveIdentifier (fileCompilationUnit, id + "()", line, col);
}
return item;
}
public ResolveResult Resolve (string expression, int caretLineNumber, int caretColumn, string fileName, string fileContent)
{
if (expression == null) {
return null;
}
expression = expression.TrimStart(null);
if (expression.Length == 0)
return null;
// disable the code completion for numbers like 3.47
int nn;
if (int.TryParse (expression, out nn))
return null;
if (expression.StartsWith("using ")) {
// expression[expression.Length - 1] != '.'
// the period that causes this Resove() is not part of the expression
if (expression[expression.Length - 1] == '.') {
return null;
}
int i;
for (i = expression.Length - 1; i >= 0; --i) {
if (!(Char.IsLetterOrDigit(expression[i]) || expression[i] == '_' || expression[i] == '.')) {
break;
}
}
// no Identifier before the period
if (i == expression.Length - 1) {
return null;
}
string t = expression.Substring(i + 1);
// Console.WriteLine("in Using Statement");
string[] namespaces = parserContext.GetNamespaceList (t);
if (namespaces == null || namespaces.Length <= 0) {
return null;
}
return new ResolveResult(namespaces);
}
//Console.WriteLine("Not in Using");
IReturnType type = internalResolve (expression, caretLineNumber, caretColumn, fileName, fileContent);
if (type == null)
return null;
// Needed to be able to find the array members
if (type.ArrayDimensions != null && type.ArrayDimensions.Length > 0)
type = new ReturnType("System.Array");
IClass returnClass = SearchType (type, currentUnit);
if (returnClass == null) {
// Try if type is Namespace:
string n = SearchNamespace(type.FullyQualifiedName, currentUnit);
if (n == null) {
return null;
}
LanguageItemCollection content = parserContext.GetNamespaceContents (n,true);
LanguageItemCollection classes = new LanguageItemCollection();
for (int i = 0; i < content.Count; ++i) {
if (content[i] is IClass) {
classes.Add((IClass)content[i]);
}
}
string[] namespaces = parserContext.GetNamespaceList (n, true, true);
return new ResolveResult(namespaces, classes);
}
//Console.WriteLine("Returning Result!");
if (returnClass.FullyQualifiedName == "System.Void")
return null;
LanguageItemCollection members = new LanguageItemCollection();
ListMembers(members, returnClass, returnClass);
if (returnClass.ClassType == ClassType.Interface) {
IClass objType = SearchType ("System.Object", null, null);
ListMembers (members, objType, objType);
}
return new ResolveResult(returnClass, members);
}
LanguageItemCollection ListMembers (LanguageItemCollection members, IClass qualifierClass, IClass curType)
{
// Console.WriteLine("LIST MEMBERS!!!");
// Console.WriteLine("showStatic = " + showStatic);
// Console.WriteLine(curType.InnerClasses.Count + " classes");
// Console.WriteLine(curType.Properties.Count + " properties");
// Console.WriteLine(curType.Methods.Count + " methods");
// Console.WriteLine(curType.Events.Count + " events");
// Console.WriteLine(curType.Fields.Count + " fields");
if (showStatic) {
if (curType.ClassType == ClassType.Enum) {
// If the type is an enum, show the enum members only.
// (it is correct to call static methods using an enum type reference,
// but it doesn't make much sense)
foreach (IField f in curType.Fields) {
if (MustBeShown (qualifierClass, curType, f)) {
members.Add(f);
}
}
return members;
}
foreach (IClass c in curType.InnerClasses) {
if (IsAccessible(qualifierClass, curType, c)) {
members.Add(c);
}
}
}
foreach (IProperty p in curType.Properties) {
if (MustBeShown (qualifierClass, curType, p)) {
members.Add(p);
}
}
foreach (IMethod m in curType.Methods) {
if (MustBeShown (qualifierClass, curType, m)) {
members.Add(m);
}
}
foreach (IEvent e in curType.Events) {
if (MustBeShown (qualifierClass, curType, e)) {
members.Add(e);
}
}
foreach (IField f in curType.Fields) {
if (MustBeShown (qualifierClass, curType, f)) {
members.Add(f);
}
}
// Console.WriteLine("ClassType = " + curType.ClassType);
if (curType.ClassType == ClassType.Interface && !showStatic) {
foreach (IReturnType s in curType.BaseTypes) {
IClass baseClass = parserContext.GetClass (s.FullyQualifiedName, s.GenericArguments, true, true);
if (baseClass != null && baseClass.ClassType == ClassType.Interface) {
ListMembers (members, qualifierClass, baseClass);
}
}
} else {
IClass baseClass = BaseClass(curType);
if (baseClass != null) {
// Console.WriteLine("Base Class = " + baseClass.FullyQualifiedName);
ListMembers (members, qualifierClass, baseClass);
}
}
// Console.WriteLine("listing finished");
return members;
}
public IClass BaseClass(IClass curClass)
{
foreach (IReturnType s in curClass.BaseTypes) {
IClass baseClass = parserContext.GetClass (s.FullyQualifiedName, s.GenericArguments, true, true);
if (baseClass != null && baseClass.ClassType != ClassType.Interface) {
return baseClass;
}
}
return null;
}
bool IsAccessible (IClass qualifier, IClass c, IDecoration member)
{
// Console.WriteLine("member.Modifiers = " + member.Modifiers);
if ((member.Modifiers & ModifierEnum.Internal) == ModifierEnum.Internal) {
return true;
}
if ((member.Modifiers & ModifierEnum.Public) == ModifierEnum.Public) {
// Console.WriteLine("IsAccessible");
return true;
}
if ((member.Modifiers & ModifierEnum.Protected) == ModifierEnum.Protected && IsClassInInheritanceTree (callingClass, qualifier)) {
// Console.WriteLine("IsAccessible");
return true;
}
if (callingClass == null)
return false;
return c.FullyQualifiedName == callingClass.FullyQualifiedName;
}
bool MustBeShown (IClass qualifierClass, IClass c, IDecoration member)
{
if (c.ClassType == ClassType.Enum && (member is IField))
return showStatic;
bool memStatic = member.IsStatic || ((member is IField) && member.IsLiteral);
if ((showStatic != memStatic) ||
(showStatic && member.IsStatic && member.IsSpecialName && member.Name.StartsWith ("op_"))
) {
//// enum type fields are not shown here - there is no info in member about enum field
return false;
}
return IsAccessible (qualifierClass, c, member);
}
public ArrayList SearchMethod(IReturnType type, string memberName)
{
if (type == null || type.PointerNestingLevel != 0) {
return new ArrayList();
}
IClass curType;
if (type.ArrayDimensions != null && type.ArrayDimensions.Length > 0) {
curType = SearchType ("System.Array", null, null);
} else {
curType = SearchType (type, null);
if (curType == null) {
return new ArrayList();
}
}
return SearchMethod(new ArrayList(), curType, memberName);
}
ArrayList SearchMethod (ArrayList methods, IClass curType, string memberName)
{
return SearchMethod (methods, curType, curType, memberName);
}
ArrayList SearchMethod (ArrayList methods, IClass qualifierClass, IClass curType, string memberName)
{
foreach (IMethod m in curType.Methods) {
if (m.Name == memberName &&
MustBeShown (qualifierClass, curType, m) &&
!((m.Modifiers & ModifierEnum.Override) == ModifierEnum.Override)) {
methods.Add(m);
}
}
IClass baseClass = BaseClass(curType);
if (baseClass != null && baseClass != curType) {
return SearchMethod(methods, qualifierClass, baseClass, memberName);
}
showStatic = false;
return methods;
}
public ArrayList SearchIndexer(IReturnType type)
{
IClass curType = SearchType (type, null);
if (curType != null) {
return SearchIndexer(new ArrayList(), curType, curType);
}
return new ArrayList();
}
public ArrayList SearchIndexer (ArrayList indexer, IClass qualifierClass, IClass curType)
{
foreach (IIndexer i in curType.Indexer) {
if (MustBeShown(qualifierClass, curType, i) && !((i.Modifiers & ModifierEnum.Override) == ModifierEnum.Override)) {
indexer.Add(i);
}
}
IClass baseClass = BaseClass(curType);
if (baseClass != null) {
return SearchIndexer (indexer, qualifierClass, baseClass);
}
showStatic = false;
return indexer;
}
// no methods or indexer
public IReturnType SearchMember (IReturnType type, string memberName)
{
IClass curType;
IDecoration member;
if (!SearchClassMember (type, memberName, false, out curType, out member))
return null;
if (member is IField) {
showStatic = false;
if (curType.ClassType == ClassType.Enum)
return type; // enum members have the type of the enum
else
return ((IField)member).ReturnType;
}
else if (member is IClass) {
showStatic = true;
return new ReturnType (((IClass)member).FullyQualifiedName);
}
else if (member is IProperty) {
showStatic = false;
return ((IProperty)member).ReturnType;
}
else if (member is IEvent) {
showStatic = false;
return ((IEvent)member).ReturnType;
}
throw new InvalidOperationException ("Unknown member type:" + member);
}
public IDecoration SearchClassMember (IReturnType type, string memberName, bool includeMethods)
{
IDecoration member;
IClass curType;
if (SearchClassMember (type, memberName, includeMethods, out curType, out member))
return member;
else
return null;
}
bool SearchClassMember (IReturnType type, string memberName, bool includeMethods, out IClass curType, out IDecoration member)
{
curType = null;
member = null;
if (type == null || memberName == null || memberName == "")
return false;
curType = SearchType (type, currentUnit);
if (curType == null)
return false;
if (type.PointerNestingLevel != 0)
return false;
if (type.ArrayDimensions != null && type.ArrayDimensions.Length > 0)
curType = SearchType ("System.Array", null, null);
return SearchClassMember (curType, curType, memberName, includeMethods, out curType, out member);
}
bool SearchClassMember (IClass qualifierClass, IClass curType, string memberName, bool includeMethods, out IClass resultType, out IDecoration member)
{
resultType = curType;
if (curType.ClassType == ClassType.Enum) {
foreach (IField f in curType.Fields) {
if (f.Name == memberName && MustBeShown (qualifierClass, curType, f)) {
showStatic = false;
member = f; // enum members have the type of the enum
return true;
}
}
}
if (showStatic) {
foreach (IClass c in curType.InnerClasses) {
if (c.Name == memberName && IsAccessible (qualifierClass, curType, c)) {
member = c;
return true;
}
}
}
foreach (IProperty p in curType.Properties) {
if (p.Name == memberName && MustBeShown (qualifierClass, curType, p)) {
showStatic = false;
member = p;
return true;
}
}
foreach (IField f in curType.Fields) {
if (f.Name == memberName && MustBeShown (qualifierClass, curType, f)) {
showStatic = false;
member = f;
return true;
}
}
foreach (IEvent e in curType.Events) {
if (e.Name == memberName && MustBeShown (qualifierClass, curType, e)) {
showStatic = false;
member = e;
return true;
}
}
if (includeMethods) {
foreach (IMethod m in curType.Methods) {
if (m.Name == memberName && MustBeShown (qualifierClass, curType, m)) {
showStatic = false;
member = m;
return true;
}
}
}
// Don't look in interfaces, unless the base type is already an interface.
foreach (IReturnType baseType in curType.BaseTypes) {
IClass c = parserContext.GetClass (baseType.FullyQualifiedName, baseType.GenericArguments, true, true);
if (c != null && (c.ClassType != ClassType.Interface || curType.ClassType == ClassType.Interface)) {
if (SearchClassMember (qualifierClass, c, memberName, includeMethods, out resultType, out member))
return true;
}
}
member = null;
return false;
}
bool IsInside(Location between, Location start, Location end)
{
if (between.Y < start.Y || between.Y > end.Y) {
// Console.WriteLine("Y = {0} not between {1} and {2}", between.Y, start.Y, end.Y);
return false;
}
if (between.Y > start.Y) {
if (between.Y < end.Y) {
return true;
}
// between.Y == end.Y
// Console.WriteLine("between.Y = {0} == end.Y = {1}", between.Y, end.Y);
// Console.WriteLine("returning {0}:, between.X = {1} <= end.X = {2}", between.X <= end.X, between.X, end.X);
return between.X <= end.X;
}
// between.Y == start.Y
// Console.WriteLine("between.Y = {0} == start.Y = {1}", between.Y, start.Y);
if (between.X < start.X) {
return false;
}
// start is OK and between.Y <= end.Y
return between.Y < end.Y || between.X <= end.X;
}
LocalVariable SearchVariable (string name)
{
System.Collections.Generic.List<ICSharpCode.NRefactory.Visitors.LocalLookupVariable> variables;
if (!lookupTableVisitor.Variables.TryGetValue (name, out variables) || variables.Count <= 0) {
return null;
}
foreach (LocalLookupVariable v in variables) {
if (IsInside(new Location(caretColumn, caretLine), v.StartPos, v.EndPos)) {
// The call to GetFullTypeName will return a type name with generics decoration
IClass c = SearchType (ReturnType.GetFullTypeName (v.TypeRef), null, CompilationUnit);
DefaultRegion reg = new DefaultRegion (v.StartPos.Line, v.StartPos.Column, v.EndPos.Line, v.EndPos.Column);
reg.FileName = currentFile;
return new LocalVariable (name, new ReturnType (v.TypeRef, c), "", reg);
}
}
return null;
}
/// <remarks>
/// does the dynamic lookup for the id
/// </remarks>
public ILanguageItem IdentifierLookup (string id)
{
// try if it exists a variable named id
LocalVariable variable = SearchVariable (id);
if (variable != null) {
return variable;
}
if (callingClass == null) {
return null;
}
// try if typeName is a method parameter
IParameter p = SearchMethodParameter (id);
if (p != null) {
return p;
}
//// somehow search in callingClass fields is not returning anything, so I am searching here once again
foreach (IField f in callingClass.Fields) {
if (f.Name == id) {
return f;
}
}
// check if typeName == value in set method of a property
if (id == "value") {
IProperty pr = SearchProperty();
if (pr != null) {
return pr;
}
}
// try if there exists a nonstatic member named typeName
showStatic = false;
IClass cls;
IDecoration member;
if (SearchClassMember (callingClass == null ? null : new ReturnType(callingClass.FullyQualifiedName), id, true, out cls, out member)) {
return member;
}
// try if there exists a static member named typeName
showStatic = true;
if (SearchClassMember (callingClass == null ? null : new ReturnType(callingClass.FullyQualifiedName), id, true, out cls, out member)) {
showStatic = false;
return member;
}
// try if there exists a static member in outer classes named typeName
foreach (IClass c in GetOuterClasses()) {
if (SearchClassMember (callingClass == null ? null : new ReturnType(c.FullyQualifiedName), id, true, out cls, out member)) {
showStatic = false;
return member;
}
}
return null;
}
/// <remarks>
/// does the dynamic lookup for the typeName
/// </remarks>
public IReturnType DynamicLookup(string typeName)
{
// Console.WriteLine("starting dynamic lookup");
// Console.WriteLine("name == " + typeName);
// try if it exists a variable named typeName
LocalVariable variable = SearchVariable (typeName);
if (variable != null) {
showStatic = false;
return variable.ReturnType;
}
// Console.WriteLine("No Variable found");
if (callingClass == null) {
return null;
}
// try if typeName is a method parameter
IParameter p = SearchMethodParameter(typeName);
if (p != null) {
// Console.WriteLine("MethodParameter Found");
showStatic = false;
return p.ReturnType;
}
// Console.WriteLine("No Parameter found");
//// somehow search in callingClass fields is not returning anything, so I am searching here once again
foreach (IField f in callingClass.Fields) {
if (f.Name == typeName) {
// Console.WriteLine("Field found " + f.Name);
return f.ReturnType;
}
}
//// end of mod for search in Fields
// check if typeName == value in set method of a property
if (typeName == "value") {
IProperty pr = SearchProperty();
if (pr != null) {
showStatic = false;
return pr.ReturnType;
}
}
// Console.WriteLine("No Property found");
// try if there exists a nonstatic member named typeName
showStatic = false;
IReturnType t = SearchMember(callingClass == null ? null : new ReturnType(callingClass.FullyQualifiedName), typeName);
if (t != null) {
return t;
}
// Console.WriteLine("No nonstatic member found");
// try if there exists a static member named typeName
// SearchMember will reset the showStatic flag if necessary
showStatic = true;
t = SearchMember(callingClass == null ? null : new ReturnType(callingClass.FullyQualifiedName), typeName);
if (t != null)
return t;
// Console.WriteLine("No static member found");
// try if there exists a static member in outer classes named typeName
foreach (IClass c in GetOuterClasses()) {
t = SearchMember(callingClass == null ? null : new ReturnType(c.FullyQualifiedName), typeName);
if (t != null)
return t;
}
// Console.WriteLine("No static member in outer classes found");
// Console.WriteLine("DynamicLookUp resultless");
return null;
}
public IMember GetMember ()
{
if (callingClass == null)
return null;
IMember mem = GetMethod ();
if (mem != null)
return mem;
mem = GetProperty ();
if (mem != null)
return mem;
return GetIndexer ();
}
IProperty GetProperty()
{
if (callingPropertyChecked)
return callingProperty;
callingPropertyChecked = true;
if (callingClass != null && callingClass.Properties != null) {
foreach (IProperty property in callingClass.Properties) {
if (property.BodyRegion != null && property.BodyRegion.IsInside(caretLine, caretColumn)) {
return callingProperty = property;
}
}
}
return null;
}
IMethod GetMethod()
{
if (callingMethodChecked)
return callingMethod;
callingMethodChecked = true;
if (callingClass != null && callingClass.Methods != null) {
foreach (IMethod method in callingClass.Methods) {
if (method.Region != null && method.Region.IsInside (caretLine, caretColumn))
return callingMethod = method;
if (method.BodyRegion != null && method.BodyRegion.IsInside(caretLine, caretColumn))
return callingMethod = method;
}
}
return null;
}
IIndexer GetIndexer()
{
if (callingIndexerChecked)
return callingIndexer;
callingIndexerChecked = true;
if (callingClass != null && callingClass.Indexer != null) {
foreach (IIndexer indexer in callingClass.Indexer) {
if (indexer.BodyRegion != null && indexer.BodyRegion.IsInside(caretLine, caretColumn)) {
return callingIndexer = indexer;
}
}
}
return null;
}
IProperty SearchProperty ()
{
IProperty property = GetProperty ();
if (property == null) {
return null;
}
if (property.SetterRegion != null && property.SetterRegion.IsInside(caretLine, caretColumn)) {
return property;
}
return null;
}
IParameter SearchMethodParameter(string parameter)
{
IMethod method = GetMethod();
if (method == null)
return null;
foreach (IParameter p in method.Parameters) {
if (p.Name == parameter) {
return p;
}
}
return null;
}
/// <remarks>
/// use the usings to find the correct name of a namespace
/// </remarks>
public string SearchNamespace(string name, ICompilationUnit unit)
{
// If the name matches an alias, try using the alias first.
if (unit != null) {
IReturnType aliasResult = FindAlias (name, unit);
if (aliasResult != null) {
// Don't provide the compilation unit when trying to resolve the alias,
// since aliases are not affected by other 'using' directives.
string ns = SearchNamespace (aliasResult.FullyQualifiedName, null);
if (ns != null)
return ns;
}
}
if (parserContext.NamespaceExists (name)) {
return name;
}
if (unit == null) {
return null;
}
foreach (IUsing u in unit.Usings) {
if (u != null && (u.Region == null || u.Region.IsInside(caretLine, caretColumn))) {
string nameSpace = parserContext.SearchNamespace (u, name);
if (nameSpace != null) {
return nameSpace;
}
}
}
return null;
}
public IClass SearchType (IReturnType type, ICompilationUnit unit)
{
return SearchType (type.FullyQualifiedName, type.GenericArguments, unit);
}
/// <remarks>
/// use the usings and the name of the namespace to find a class
/// </remarks>
public IClass SearchType (string name, ReturnTypeList genericArguments, ICompilationUnit unit)
{
// Console.WriteLine("Searching Type " + name);
if (name == null || name == String.Empty)
return null;
IClass c;
// Check if the name matches a type parameter of the enclosing method
IMethod met = GetMethod ();
if (met != null && met.GenericParameters != null) {
c = FindTypeParameter (met.GenericParameters, name, unit);
if (c != null) return c;
}
if (callingClass != null && callingClass.GenericParameters != null) {
c = FindTypeParameter (callingClass.GenericParameters, name, unit);
if (c != null) return c;
}
// If the name matches an alias, try using the alias first.
if (unit != null) {
// If the type name has a namespace name, try to find an alias for the namespace
int i = name.IndexOf ('.');
c = null;
if (i != -1) {
string aname = name.Substring (0,i);
string clsName = name.Substring (i);
IReturnType aliasResult = FindAlias (aname, unit);
if (aliasResult != null) {
// Don't provide the compilation unit when trying to resolve the alias,
// since aliases are not affected by other 'using' directives.
c = SearchType (aliasResult.FullyQualifiedName + clsName, genericArguments, null);
}
} else {
// If it is a type alias, there is no need to look further
IReturnType aliasResult = FindAlias (name, unit);
if (aliasResult != null) {
c = SearchType (aliasResult, null);
}
}
if (c != null)
return c;
}
// Look for an exact match
c = parserContext.GetClass (name, genericArguments);
if (c != null)
return c;
// The enclosing namespace has preference over the using directives.
// Check it now.
if (callingClass != null)
{
string fullname = callingClass.FullyQualifiedName;
string[] namespaces = fullname.Split(new char[] {'.'});
string curnamespace = "";
int i = 0;
do {
curnamespace += namespaces[i] + '.';
c = parserContext.GetClass (curnamespace + name, genericArguments);
if (c != null) {
return c;
}
i++;
}
while (i < namespaces.Length);
// It may be an inner class
IClass parentc = callingClass;
do {
c = parserContext.GetClass (parentc.FullyQualifiedName + "." + name, genericArguments);
if (c != null && (c.IsPublic || c.IsProtected || c.IsInternal))
return c;
parentc = BaseClass (parentc);
}
while (parentc != null);
}
// Now try to find the class using the included namespaces
if (unit != null) {
foreach (IUsing u in unit.Usings) {
if (u != null && (u.Region == null || u.Region.IsInside(caretLine, caretColumn))) {
c = parserContext.SearchType (u, name, genericArguments);
if (c != null)
return c;
}
}
}
return null;
}
IClass FindTypeParameter (GenericParameterList gparams, string name, ICompilationUnit unit)
{
foreach (MonoDevelop.Projects.Parser.GenericParameter gp in gparams) {
if (gp.Name == name) {
if (gp.BaseTypes != null)
return CreateParameterTypeClass (gp.Name, gp.BaseTypes, unit);
else
return parserContext.GetClass ("System.Object", null);
}
}
return null;
}
IReturnType FindAlias (string name, ICompilationUnit unit)
{
// If the name matches an alias, try using the alias first.
if (unit == null)
return null;
foreach (IUsing u in unit.Usings) {
if (u != null && (u.Region == null || u.Region.IsInside(caretLine, caretColumn))) {
IReturnType rt = u.GetAlias (name);
if (rt != null)
return rt;
}
}
return null;
}
public TypeNameResolver CreateTypeNameResolver ()
{
if (currentUnit == null)
return new TypeNameResolver ();
else
return new TypeNameResolver (currentUnit, caretLine, caretColumn);
}
/// <remarks>
/// Returns true, if class possibleBaseClass is in the inheritance tree from c
/// </remarks>
bool IsClassInInheritanceTree(IClass possibleBaseClass, IClass c)
{
if (possibleBaseClass == null || c == null) {
return false;
}
if (possibleBaseClass.FullyQualifiedName == c.FullyQualifiedName) {
return true;
}
foreach (IReturnType baseClass in c.BaseTypes) {
IClass bc = parserContext.GetClass (baseClass.FullyQualifiedName, baseClass.GenericArguments, true, true);
if (IsClassInInheritanceTree(possibleBaseClass, bc)) {
return true;
}
}
return false;
}
/// <remarks>
/// Returns the innerst class in which the carret currently is, returns null
/// if the carret is outside any class boundaries.
/// </remarks>
IClass GetInnermostClass()
{
if (currentUnit != null) {
foreach (IClass c in currentUnit.Classes) {
if (c != null && ((c.Region != null && c.Region.IsInside(caretLine, caretColumn)) ||
(c.BodyRegion != null && c.BodyRegion.IsInside(caretLine, caretColumn))))
{
return GetInnermostClass(c);
}
}
}
return null;
}
IClass GetInnermostClass(IClass curClass)
{
if (curClass == null) {
return null;
}
if (curClass.InnerClasses == null) {
return GetResolvedClass (curClass);
}
foreach (IClass c in curClass.InnerClasses) {
if (c != null && ((c.Region != null && c.Region.IsInside(caretLine, caretColumn)) ||
(c.BodyRegion != null && c.BodyRegion.IsInside(caretLine, caretColumn))))
return GetInnermostClass(c);
}
return GetResolvedClass (curClass);
}
/// <remarks>
/// Returns all (nestet) classes in which the carret currently is exept
/// the innermost class, returns an empty collection if the carret is in
/// no class or only in the innermost class.
/// the most outer class is the last in the collection.
/// </remarks>
ClassCollection GetOuterClasses()
{
ClassCollection classes = new ClassCollection();
if (currentUnit != null) {
foreach (IClass c in currentUnit.Classes) {
if (c != null && c.BodyRegion != null && c.BodyRegion.IsInside(caretLine, caretColumn)) {
if (c != GetInnermostClass()) {
GetOuterClasses(classes, c);
classes.Add(GetResolvedClass (c));
}
break;
}
}
}
return classes;
}
void GetOuterClasses(ClassCollection classes, IClass curClass)
{
if (curClass != null) {
foreach (IClass c in curClass.InnerClasses) {
if (c != null && c.BodyRegion != null && c.BodyRegion.IsInside(caretLine, caretColumn)) {
if (c != GetInnermostClass()) {
GetOuterClasses(classes, c);
classes.Add(GetResolvedClass (c));
}
break;
}
}
}
}
public IClass GetResolvedClass (IClass cls)
{
// Returns an IClass in which all type names have been properly resolved
return parserContext.GetClass (cls.FullyQualifiedName);
}
public LanguageItemCollection IsAsResolve (string expression, int caretLine, int caretColumn, string fileName, string fileContent, bool excludeInterfaces)
{
LanguageItemCollection result = new LanguageItemCollection ();
SetCursorPosition (caretLine, caretColumn);
IParseInformation parseInfo = parserContext.GetParseInformation (fileName);
ICSharpCode.NRefactory.Ast.CompilationUnit fcu = parseInfo.MostRecentCompilationUnit.Tag as ICSharpCode.NRefactory.Ast.CompilationUnit;
if (fcu == null)
return null;
ICSharpCode.NRefactory.IParser p = ICSharpCode.NRefactory.ParserFactory.CreateParser (SupportedLanguage.CSharp, new StringReader (expression));
Expression expr = p.ParseExpression ();
if (expr == null)
return null;
lookupTableVisitor = new LookupTableVisitor (SupportedLanguage.CSharp);
lookupTableVisitor.VisitCompilationUnit (fcu, null);
TypeVisitor typeVisitor = new TypeVisitor (this);
CSharpVisitor csharpVisitor = new CSharpVisitor ();
currentUnit = (ICompilationUnit)csharpVisitor.VisitCompilationUnit (fcu, null);
currentFile = fileName;
if (currentUnit != null) {
callingClass = GetInnermostClass ();
}
IReturnType type = expr.AcceptVisitor (typeVisitor, null) as IReturnType;
if (type == null || type.PointerNestingLevel != 0) {
fcu = parserContext.ParseFile (fileName, fileContent).MostRecentCompilationUnit.Tag as ICSharpCode.NRefactory.Ast.CompilationUnit;
lookupTableVisitor.VisitCompilationUnit (fcu, null);
currentUnit = (ICompilationUnit)csharpVisitor.VisitCompilationUnit (fcu, null);
if (currentUnit != null) {
callingClass = GetInnermostClass ();
}
type = expr.AcceptVisitor (typeVisitor, null) as IReturnType;
if (type == null)
return null;
}
if (type.ArrayDimensions != null && type.ArrayDimensions.Length > 0)
type = new ReturnType ("System.Array");
IClass returnClass = SearchType (type, currentUnit);
// IClass returnClass = parserContext.SearchType (type.FullyQualifiedName, null, currentUnit);
if (returnClass == null)
return null;
// Get the list of namespaces where subclasses have to be searched.
// Include all namespaces for which there is an "using".
List<string> ns = new List<string> ();
if (currentUnit != null && currentUnit.Usings != null) {
foreach (IUsing us in currentUnit.Usings)
ns.AddRange (us.Usings);
}
// Include the calling class namesapce and all its parent namespaces
if (callingClass != null) {
string[] namespaceParts = callingClass.Namespace.Split ('.');
string cns = "";
foreach (string s in namespaceParts) {
if (cns.Length > 0)
cns += ".";
cns += s;
ns.Add (cns);
}
}
// Stack<IReturnType> baseTypes = new Stack<IReturnType> ();
// baseTypes.Push (type);
// do {
// IClass c = SearchType (baseTypes.Pop (), currentUnit);
// if (c != null) {
// if (!result.Contains (c) && !(excludeInterfaces && (c.ClassType == ClassType.Interface || c.IsAbstract)))
// result.Add (c);
// foreach (IReturnType retType in c.BaseTypes) {
// baseTypes.Push (retType);
// }
// }
// } while (baseTypes.Count > 0);
foreach (IClass iclass in parserContext.GetSubclassesTree (returnClass, ns.ToArray ())) {
if (!result.Contains (iclass) && !(excludeInterfaces && (iclass.ClassType == ClassType.Interface || iclass.IsAbstract)))
result.Add (iclass);
}
IMethod met = GetMethod ();
if (met != null && met.GenericParameters != null)
FindTypeParameterSubclasses (result, met.GenericParameters, returnClass, currentUnit);
if (callingClass != null && callingClass.GenericParameters != null)
FindTypeParameterSubclasses (result, callingClass.GenericParameters, returnClass, currentUnit);
// Include all namespaces as well
foreach (string nss in parserContext.GetNamespaceList ("", true, true))
result.Add (new Namespace (nss));
return result;
}
void FindTypeParameterSubclasses (LanguageItemCollection result, GenericParameterList gparams, IClass baseClass, ICompilationUnit unit)
{
foreach (MonoDevelop.Projects.Parser.GenericParameter gp in gparams) {
if (gp.BaseTypes != null) {
foreach (IReturnType rt in gp.BaseTypes) {
IClass cls = SearchType (rt, unit);
if (IsClassInInheritanceTree (baseClass, cls)) {
result.Add (CreateParameterTypeClass (gp.Name, gp.BaseTypes, unit));
break;
}
}
}
else {
IClass cls = parserContext.GetClass ("System.Object", null);
if (IsClassInInheritanceTree (baseClass, cls)) {
result.Add (CreateParameterTypeClass (gp.Name, null, unit));
break;
}
}
}
}
IClass CreateParameterTypeClass (string name, ReturnTypeList btypes, ICompilationUnit unit)
{
DefaultClass c = new DefaultClass (unit);
c.FullyQualifiedName = name;
if (btypes != null)
c.BaseTypes.AddRange (btypes);
return c;
}
public LanguageItemCollection CtrlSpace (int caretLine, int caretColumn, string fileName)
{
LanguageItemCollection result = new LanguageItemCollection ();
// Why whas it here ? (I've removed it to remove dupes int/int for example) Mike
// foreach (System.Collections.Generic.KeyValuePair<string, string> pt in TypeReference.PrimitiveTypesCSharp)
// result.Add (new Namespace (pt.Key));
SetCursorPosition (caretLine, caretColumn);
IParseInformation parseInfo = parserContext.GetParseInformation (fileName);
ICSharpCode.NRefactory.Ast.CompilationUnit fileCompilationUnit = parseInfo.MostRecentCompilationUnit.Tag as ICSharpCode.NRefactory.Ast.CompilationUnit;
if (fileCompilationUnit == null) {
Console.WriteLine("!Warning: no parseinformation!");
return null;
}
lookupTableVisitor = new LookupTableVisitor(SupportedLanguage.CSharp);
lookupTableVisitor.VisitCompilationUnit (fileCompilationUnit, null);
CSharpVisitor cSharpVisitor = new CSharpVisitor();
currentUnit = (ICompilationUnit)cSharpVisitor.VisitCompilationUnit (fileCompilationUnit, null);
currentFile = fileName;
if (currentUnit != null) {
SetCursorPosition (caretLine, caretColumn);
callingClass = GetInnermostClass();
// Console.WriteLine("CallingClass is " + (callingClass == null ? "null" : callingClass.Name));
}
IMethod met = GetMethod ();
Hashtable vars = new Hashtable ();
if (met != null) {
foreach (IParameter par in met.Parameters) {
result.Add(par);
vars [par.Name] = par;
}
}
foreach (string name in lookupTableVisitor.Variables.Keys) {
if (vars.Contains (name))
continue;
ICollection variables = lookupTableVisitor.Variables[name];
if (variables != null && variables.Count > 0) {
foreach (LocalLookupVariable v in variables) {
if (IsInside(new Location(caretColumn, caretLine), v.StartPos, v.EndPos)) {
result.Add(new DefaultParameter (null, name, new ReturnType (ReturnType.GetSystemType (v.TypeRef.Type))));
break;
}
}
}
}
if (callingClass != null) {
showStatic = true;
ListMembers (result, callingClass, callingClass);
IProperty prop = GetProperty ();
if (prop != null && prop.SetterRegion != null && prop.SetterRegion.IsInside (caretLine, caretColumn)) {
result.Add (new DefaultParameter (null, "value", prop.ReturnType));
}
IIndexer indexer = GetIndexer();
if ((met != null && !met.IsStatic) || (prop != null && !prop.IsStatic) || (indexer != null)) {
result.Add (new DefaultParameter (null, "this", new ReturnType(callingClass.FullyQualifiedName)));
result.Add (new DefaultParameter (null, "base", new ReturnType(callingClass.BaseTypes.Count > 0 ? callingClass.BaseTypes[0].FullyQualifiedName : "object")));
showStatic = false;
ListMembers (result, callingClass, callingClass);
}
// Add classes from calling namespace
if (callingClass.Namespace.Length > 0)
result.AddRange (parserContext.GetNamespaceContents (callingClass.Namespace, true));
}
string n = "";
// Add contents of the default namespace
result.AddRange(parserContext.GetNamespaceContents (n, true));
// Add contents of imported namespaces
foreach (IUsing u in currentUnit.Usings) {
if (u != null && (u.Region == null || u.Region.IsInside(caretLine, caretColumn))) {
foreach (string name in u.Usings) {
result.AddRange(parserContext.GetNamespaceContents (name, true));
}
foreach (string alias in u.Aliases) {
result.Add(new Namespace (alias));
}
}
}
return result;
}
}
}
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