internal void MergeWith(PackageScope p)
{
foreach (object obj2 in p.field_table)
{
JSGlobalField field = (JSGlobalField)obj2;
ClassScope scope = field.value as ClassScope;
if (base.name_table[field.Name] != null)
{
if (scope != null)
{
scope.owner.context.HandleError(JSError.DuplicateName, field.Name, true);
scope.owner.name = scope.owner.name + p.GetHashCode().ToString(CultureInfo.InvariantCulture);
}
}
else
{
base.field_table.Add(field);
base.name_table[field.Name] = field;
if (scope != null)
{
scope.owner.enclosingScope = this;
scope.package = this;
}
}
}
}
internal ClassScope(AST name, GlobalScope scope) : base(scope)
{
this.name = name.ToString();
base.engine = scope.engine;
base.fast = scope.fast;
this.noExpando = true;
base.isKnownAtCompileTime = true;
this.owner = null;
this.constructors = new JSConstructor[0];
ScriptObject parent = base.engine.ScriptObjectStackTop();
while (parent is WithObject)
{
parent = parent.GetParent();
}
if (parent is ClassScope)
{
this.package = ((ClassScope)parent).GetPackage();
}
else if (parent is PackageScope)
{
this.package = (PackageScope)parent;
}
else
{
this.package = null;
}
this.itemProp = null;
this.outerClassField = null;
this.inStaticInitializerCode = false;
this.staticInitializerUsesEval = false;
this.instanceInitializerUsesEval = false;
}
internal bool inStaticInitializerCode; //Set this to true when partially evaluating the initializer of a static variable, false otherwise
internal ClassScope(AST name, GlobalScope scope)
: base(scope) //The parent must be set to a proper value before the class can be used.
{
this.name = name.ToString();
this.engine = scope.engine;
this.fast = scope.fast;
this.noExpando = true;
this.isKnownAtCompileTime = true;
this.owner = null; //set by Class constructor
this.constructors = new JSConstructor[0];
ScriptObject enclosingScope = this.engine.ScriptObjectStackTop();
while (enclosingScope is WithObject)
{
enclosingScope = enclosingScope.GetParent();
}
if (enclosingScope is ClassScope)
{
this.package = ((ClassScope)enclosingScope).GetPackage();
}
else if (enclosingScope is PackageScope)
{
this.package = (PackageScope)enclosingScope;
}
else
{
this.package = null;
}
this.itemProp = null;
this.outerClassField = null;
this.inStaticInitializerCode = false;
}
internal void MergeWith(PackageScope p)
{
foreach (object obj2 in p.field_table)
{
JSGlobalField field = (JSGlobalField) obj2;
ClassScope scope = field.value as ClassScope;
if (base.name_table[field.Name] != null)
{
if (scope != null)
{
scope.owner.context.HandleError(JSError.DuplicateName, field.Name, true);
scope.owner.name = scope.owner.name + p.GetHashCode().ToString(CultureInfo.InvariantCulture);
}
}
else
{
base.field_table.Add(field);
base.name_table[field.Name] = field;
if (scope != null)
{
scope.owner.enclosingScope = this;
scope.package = this;
}
}
}
}
internal ClassScope(AST name, GlobalScope scope) : base(scope)
{
this.name = name.ToString();
base.engine = scope.engine;
base.fast = scope.fast;
this.noExpando = true;
base.isKnownAtCompileTime = true;
this.owner = null;
this.constructors = new JSConstructor[0];
ScriptObject parent = base.engine.ScriptObjectStackTop();
while (parent is WithObject)
{
parent = parent.GetParent();
}
if (parent is ClassScope)
{
this.package = ((ClassScope) parent).GetPackage();
}
else if (parent is PackageScope)
{
this.package = (PackageScope) parent;
}
else
{
this.package = null;
}
this.itemProp = null;
this.outerClassField = null;
this.inStaticInitializerCode = false;
this.staticInitializerUsesEval = false;
this.instanceInitializerUsesEval = false;
}
internal string GetFullName()
{
PackageScope package = this.GetPackage();
if (package != null)
{
return(package.GetName() + "." + this.name);
}
if (this.owner.enclosingScope is ClassScope)
{
return(((ClassScope)this.owner.enclosingScope).GetFullName() + "." + this.name);
}
return(this.name);
}
internal Package(String name, AST id, ASTList classList, Context context)
: base(context){
this.name = name;
this.classList = classList;
this.scope = (PackageScope)Globals.ScopeStack.Peek();
this.scope.owner = this;
this.Engine.AddPackage(this.scope);
Lookup simpleId = id as Lookup;
if (simpleId != null)
simpleId.EvaluateAsWrappedNamespace(true);
else{
Member qualifiedId = id as Member;
if (qualifiedId != null)
qualifiedId.EvaluateAsWrappedNamespace(true);
}
}
internal void MergeWith(PackageScope p){
foreach (Object f in p.field_table){
JSGlobalField field = (JSGlobalField)f;
ClassScope csc = field.value as ClassScope;
if (this.name_table[field.Name] != null){
if (csc != null){
csc.owner.context.HandleError(JSError.DuplicateName, field.Name, true);
csc.owner.name += p.GetHashCode().ToString();
}
continue;
}
this.field_table.Add(field);
this.name_table[field.Name] = field;
if (csc != null){
csc.owner.enclosingScope = this;
csc.package = this;
}
}
}
internal Package(string name, AST id, ASTList classList, Context context) : base(context)
{
this.name = name;
this.classList = classList;
this.scope = (PackageScope) base.Globals.ScopeStack.Peek();
this.scope.owner = this;
base.Engine.AddPackage(this.scope);
Lookup lookup = id as Lookup;
if (lookup != null)
{
lookup.EvaluateAsWrappedNamespace(true);
}
else
{
Member member = id as Member;
if (member != null)
{
member.EvaluateAsWrappedNamespace(true);
}
}
}
internal bool inStaticInitializerCode; //Set this to true when partially evaluating the initializer of a static variable, false otherwise
internal ClassScope(AST name, GlobalScope scope)
: base(scope) { //The parent must be set to a proper value before the class can be used.
this.name = name.ToString();
this.engine = scope.engine;
this.fast = scope.fast;
this.noExpando = true;
this.isKnownAtCompileTime = true;
this.owner = null; //set by Class constructor
this.constructors = new JSConstructor[0];
ScriptObject enclosingScope = this.engine.ScriptObjectStackTop();
while (enclosingScope is WithObject)
enclosingScope = enclosingScope.GetParent();
if (enclosingScope is ClassScope)
this.package = ((ClassScope)enclosingScope).GetPackage();
else if (enclosingScope is PackageScope)
this.package = (PackageScope)enclosingScope;
else
this.package = null;
this.itemProp = null;
this.outerClassField = null;
this.inStaticInitializerCode = false;
}
internal Package(string name, AST id, ASTList classList, Context context) : base(context)
{
this.name = name;
this.classList = classList;
this.scope = (PackageScope)base.Globals.ScopeStack.Peek();
this.scope.owner = this;
base.Engine.AddPackage(this.scope);
Lookup lookup = id as Lookup;
if (lookup != null)
{
lookup.EvaluateAsWrappedNamespace(true);
}
else
{
Member member = id as Member;
if (member != null)
{
member.EvaluateAsWrappedNamespace(true);
}
}
}
internal Package(String name, AST id, ASTList classList, Context context)
: base(context)
{
this.name = name;
this.classList = classList;
this.scope = (PackageScope)Globals.ScopeStack.Peek();
this.scope.owner = this;
this.Engine.AddPackage(this.scope);
Lookup simpleId = id as Lookup;
if (simpleId != null)
{
simpleId.EvaluateAsWrappedNamespace(true);
}
else
{
Member qualifiedId = id as Member;
if (qualifiedId != null)
{
qualifiedId.EvaluateAsWrappedNamespace(true);
}
}
}
internal void MergeWith(PackageScope p)
{
foreach (Object f in p.field_table)
{
JSGlobalField field = (JSGlobalField)f;
ClassScope csc = field.value as ClassScope;
if (this.name_table[field.Name] != null)
{
if (csc != null)
{
csc.owner.context.HandleError(JSError.DuplicateName, field.Name, true);
csc.owner.name += p.GetHashCode().ToString();
}
continue;
}
this.field_table.Add(field);
this.name_table[field.Name] = field;
if (csc != null)
{
csc.owner.enclosingScope = this;
csc.package = this;
}
}
}
internal void AddPackage(PackageScope pscope){
if (this.packages == null)
this.packages = new ArrayList(8);
IEnumerator e = this.packages.GetEnumerator();
while (e.MoveNext()){
PackageScope cps = (PackageScope)e.Current;
if (cps.name.Equals(pscope.name)){
cps.owner.MergeWith(pscope.owner);
return;
}
}
this.packages.Add(pscope);
}
//---------------------------------------------------------------------------------------
// ParsePackage
//
// Package :
// 'package' QualifiedIdentifier '{' ClassList '}'
//
// ClassList :
// <empty> |
// Class ClassList |
// Attributes Class ClassList |
// Attributes Enum ClassList
//---------------------------------------------------------------------------------------
// Because 'package' is not a reserved word in JS5 we have to deal with an ambiguity
// in the grammar. A source sequence like the following
// package
// x
// { }
// can be legally parsed in two ways:
// Identifier Identifier Block or
// Package
// we give Package priority in this situation.
// Here is how we deal with some possible cases:
// 1- ** package <no line break> QualifiedIdentifier ** is parsed unambiguously as a package production regardless of what comes after Identifier
// 2- ** package <no line break> NotOneOf(Operator | '[' | '.' | '(' | Identifier) '{' ** is parsed as a package production with an error
// 3- ** package <line break> '{' ** is parsed as a package (anonymous) with an error
// 4- ** package <line break> Not(Identifier) ** is never parsed as a package
private AST ParsePackage(Context packageContext){
GetNextToken();
AST qualid = null;
bool gotLineBreak = this.scanner.GotEndOfLine();
// erroneous package production
if (JSToken.Identifier != this.currentToken.token){
if (JSScanner.CanParseAsExpression(this.currentToken.token)){
// it's an expression. Report a warning. package and this.currentToken can be an expression (i.e. 'package +')
ReportError(JSError.KeywordUsedAsIdentifier, packageContext.Clone(), true);
qualid = new Lookup("package", packageContext);
// get the member expression
qualid = MemberExpression(qualid, null);
bool isLeftHandSide;
qualid = ParsePostfixExpression(qualid, out isLeftHandSide);
qualid = ParseExpression(qualid, false, isLeftHandSide, JSToken.None);
return new Expression(qualid.context.Clone(), qualid);
}else if (!gotLineBreak){
if (JSToken.Increment == this.currentToken.token || JSToken.Decrement == this.currentToken.token){
// it's a postfix expression. Report a warning
ReportError(JSError.KeywordUsedAsIdentifier, packageContext.Clone(), true);
bool dummy;
qualid = new Lookup("package", packageContext);
qualid = ParsePostfixExpression(qualid, out dummy);
qualid = ParseExpression(qualid, false, false, JSToken.None);
return new Expression(qualid.context.Clone(), qualid);
}
}else{
// it's an expression. Report a warning which, as a side effect, will make the current token be the next token fetched
ReportError(JSError.KeywordUsedAsIdentifier, packageContext.Clone(), true);
return new Lookup("package", packageContext);
}
}else{
// it is an identifier, parse it as a qualified identifier
this.errorToken = this.currentToken; // this will make GetNextToken() in ParseQualifiedIdentifier() return this.currentToken
qualid = ParseQualifiedIdentifier(JSError.NoIdentifier);
}
// if we are here we have:
// ** package QualifiedIdentifier ** or
// ** package SomeNonSenseToken **, that is a token that does not make an expression
Context nonSenseToken = null;
if (JSToken.LeftCurly != this.currentToken.token && qualid == null){
// we want to peek and see whether the next token is a LeftCurly
nonSenseToken = this.currentToken.Clone();
GetNextToken();
}
if (JSToken.LeftCurly == this.currentToken.token){
// sounds like a package, possibly with an error. If qualid is not null is actually a good package, otherwise we treat it
// as an anonymous package and keep going.
if (qualid == null){
if (nonSenseToken == null)
nonSenseToken = this.currentToken.Clone();
ReportError(JSError.NoIdentifier, nonSenseToken, true);
}
}else{
if (qualid == null){
// this is pretty screwy, let's ignore the package keyword for a start
ReportError(JSError.SyntaxError, packageContext);
if (JSScanner.CanStartStatement(nonSenseToken.token)){
// this is tricky we assign nonSenseToken to this.currentToken and call ParseStatement, because we know it is a statement start token.
// The parser should then call GetNextToken() which will return the this.currentToken that is assigned to this.errorToken
this.currentToken = nonSenseToken;
return ParseStatement();
}else{
//ReportError(JSError.SyntaxError, nonSenseToken);
if (JSScanner.CanStartStatement(this.currentToken.token)){
this.errorToken = null;
return ParseStatement();
}else{
ReportError(JSError.SyntaxError);
SkipTokensAndThrow();
}
}
}else{
if (gotLineBreak){
// we are here with the following: 'package' <line break> QalifiedIdentifier' however we do not have a left curly.
// if the token in our hand can start an expression we go with two expressions, otherwise we accept it as a package
//if (JSScanner.CanParseAsExpression(this.currentToken.token)){
ReportError(JSError.KeywordUsedAsIdentifier, packageContext.Clone(), true);
Block block = new Block(packageContext.Clone());
block.Append(new Lookup("package", packageContext));
qualid = MemberExpression(qualid, null);
bool isLeftHandSide;
qualid = ParsePostfixExpression(qualid, out isLeftHandSide);
qualid = ParseExpression(qualid, false, true, JSToken.None);
block.Append(new Expression(qualid.context.Clone(), qualid));
block.context.UpdateWith(qualid.context);
return block;
//}
}
// the package production rule is entered regardless of the presence of a left curly.
ReportError(JSError.NoLeftCurly);
}
}
PackageScope pscope = new PackageScope(Globals.ScopeStack.Peek());
Globals.ScopeStack.Push(pscope); //Give declarations a place to go while building AST
try{
string name = (qualid != null) ? qualid.ToString() : "anonymous package";
pscope.name = name;
packageContext.UpdateWith(this.currentToken);
ASTList classList = new ASTList(packageContext);
GetNextToken();
this.noSkipTokenSet.Add(NoSkipTokenSet.s_BlockNoSkipTokenSet);
this.noSkipTokenSet.Add(NoSkipTokenSet.s_PackageBodyNoSkipTokenSet);
try{
while (this.currentToken.token != JSToken.RightCurly){
AST ast = null;
try{
switch (this.currentToken.token){
case JSToken.Interface:
case JSToken.Class:
classList.Append(ParseClass((FieldAttributes)0, false, this.currentToken.Clone(), false, false, null));
break;
case JSToken.Enum:
classList.Append(ParseEnum((FieldAttributes)0, this.currentToken.Clone(), null));
break;
case JSToken.Internal:
case JSToken.Public:
case JSToken.Static:
case JSToken.Private:
case JSToken.Protected:
case JSToken.Abstract:
case JSToken.Final:
bool parsedOK;
ast = ParseAttributes(null, true, false, out parsedOK);
if (parsedOK){
if (ast is Class){
classList.Append(ast);
break;
}
}
ReportError(JSError.OnlyClassesAllowed, ast.context.Clone(), true);
SkipTokensAndThrow();
break;
case JSToken.Identifier:
bool bAssign, canBeAttribute = true;
ast = ParseUnaryExpression(out bAssign, ref canBeAttribute, false);
if (canBeAttribute){
bool parsed;
ast = ParseAttributes(ast, true, false, out parsed);
if (parsed){
if (ast is Class){
classList.Append(ast);
break;
}
}
}
ReportError(JSError.OnlyClassesAllowed, ast.context.Clone(), true);
SkipTokensAndThrow();
break;
case JSToken.EndOfFile:
EOFError(JSError.ErrEOF);
throw new EndOfFile(); // abort parsing, get back to the main parse routine
case JSToken.Semicolon: // ignore any spurious semicolon
GetNextToken();
break;
case JSToken.Import:
// handle common error of using import in package
ReportError(JSError.InvalidImport, true);
try{
ParseImportStatement();
}catch(RecoveryTokenException){
}
break;
case JSToken.Package:
// handle common error of using package in package
Context nestedPackageContext = this.currentToken.Clone();
AST statement = ParsePackage(nestedPackageContext);
if (statement is Package)
ReportError(JSError.PackageInWrongContext, nestedPackageContext, true);
break;
default:
ReportError(JSError.OnlyClassesAllowed, (ast != null) ? ast.context.Clone() : CurrentPositionContext(), true);
SkipTokensAndThrow();
break;
}
}catch(RecoveryTokenException exc){
if (exc._partiallyComputedNode != null && exc._partiallyComputedNode is Class){
classList.Append((Class)exc._partiallyComputedNode);
exc._partiallyComputedNode = null;
}
if (IndexOfToken(NoSkipTokenSet.s_PackageBodyNoSkipTokenSet, exc) == -1)
throw exc;
}
}
}catch(RecoveryTokenException exc){
if (IndexOfToken(NoSkipTokenSet.s_BlockNoSkipTokenSet, exc) == -1){
ReportError(JSError.NoRightCurly, CurrentPositionContext());
exc._partiallyComputedNode = new Package(name, qualid, classList, packageContext);
throw exc;
}
}finally{
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_PackageBodyNoSkipTokenSet);
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_BlockNoSkipTokenSet);
}
GetNextToken();
return new Package(name, qualid, classList, packageContext);
}finally{
Globals.ScopeStack.Pop();
}
}
private AST ParsePackage(Context packageContext)
{
AST ast4;
this.GetNextToken();
AST expression = null;
bool flag = this.scanner.GotEndOfLine();
if (JSToken.Identifier != this.currentToken.token)
{
if (JSScanner.CanParseAsExpression(this.currentToken.token))
{
bool flag2;
this.ReportError(JSError.KeywordUsedAsIdentifier, packageContext.Clone(), true);
expression = new Lookup("package", packageContext);
expression = this.MemberExpression(expression, null);
expression = this.ParsePostfixExpression(expression, out flag2);
expression = this.ParseExpression(expression, false, flag2, JSToken.None);
return new Expression(expression.context.Clone(), expression);
}
if (flag)
{
this.ReportError(JSError.KeywordUsedAsIdentifier, packageContext.Clone(), true);
return new Lookup("package", packageContext);
}
if ((JSToken.Increment == this.currentToken.token) || (JSToken.Decrement == this.currentToken.token))
{
bool flag3;
this.ReportError(JSError.KeywordUsedAsIdentifier, packageContext.Clone(), true);
expression = new Lookup("package", packageContext);
expression = this.ParsePostfixExpression(expression, out flag3);
expression = this.ParseExpression(expression, false, false, JSToken.None);
return new Expression(expression.context.Clone(), expression);
}
}
else
{
this.errorToken = this.currentToken;
expression = this.ParseQualifiedIdentifier(JSError.NoIdentifier);
}
Context context = null;
if ((JSToken.LeftCurly != this.currentToken.token) && (expression == null))
{
context = this.currentToken.Clone();
this.GetNextToken();
}
if (JSToken.LeftCurly == this.currentToken.token)
{
if (expression == null)
{
if (context == null)
{
context = this.currentToken.Clone();
}
this.ReportError(JSError.NoIdentifier, context, true);
}
}
else if (expression == null)
{
this.ReportError(JSError.SyntaxError, packageContext);
if (JSScanner.CanStartStatement(context.token))
{
this.currentToken = context;
return this.ParseStatement();
}
if (JSScanner.CanStartStatement(this.currentToken.token))
{
this.errorToken = null;
return this.ParseStatement();
}
this.ReportError(JSError.SyntaxError);
this.SkipTokensAndThrow();
}
else
{
if (flag)
{
bool flag4;
this.ReportError(JSError.KeywordUsedAsIdentifier, packageContext.Clone(), true);
Block block = new Block(packageContext.Clone());
block.Append(new Lookup("package", packageContext));
expression = this.MemberExpression(expression, null);
expression = this.ParsePostfixExpression(expression, out flag4);
expression = this.ParseExpression(expression, false, true, JSToken.None);
block.Append(new Expression(expression.context.Clone(), expression));
block.context.UpdateWith(expression.context);
return block;
}
this.ReportError(JSError.NoLeftCurly);
}
PackageScope item = new PackageScope(this.Globals.ScopeStack.Peek());
this.Globals.ScopeStack.Push(item);
try
{
string name = (expression != null) ? expression.ToString() : "anonymous package";
item.name = name;
packageContext.UpdateWith(this.currentToken);
ASTList classList = new ASTList(packageContext);
this.GetNextToken();
this.noSkipTokenSet.Add(NoSkipTokenSet.s_BlockNoSkipTokenSet);
this.noSkipTokenSet.Add(NoSkipTokenSet.s_PackageBodyNoSkipTokenSet);
try
{
while (this.currentToken.token != JSToken.RightCurly)
{
AST statement = null;
try
{
switch (this.currentToken.token)
{
case JSToken.Identifier:
{
bool flag6;
bool canBeAttribute = true;
statement = this.ParseUnaryExpression(out flag6, ref canBeAttribute, false);
if (canBeAttribute)
{
bool flag8;
statement = this.ParseAttributes(statement, true, false, out flag8);
if (flag8 && (statement is Class))
{
classList.Append(statement);
continue;
}
}
this.ReportError(JSError.OnlyClassesAllowed, statement.context.Clone(), true);
this.SkipTokensAndThrow();
continue;
}
case JSToken.Interface:
case JSToken.Class:
{
classList.Append(this.ParseClass(FieldAttributes.PrivateScope, false, this.currentToken.Clone(), false, false, null));
continue;
}
case JSToken.Enum:
{
classList.Append(this.ParseEnum(FieldAttributes.PrivateScope, this.currentToken.Clone(), null));
continue;
}
case JSToken.Import:
{
this.ReportError(JSError.InvalidImport, true);
try
{
this.ParseImportStatement();
}
catch (RecoveryTokenException)
{
}
continue;
}
case JSToken.Package:
{
Context context2 = this.currentToken.Clone();
if (this.ParsePackage(context2) is Package)
{
this.ReportError(JSError.PackageInWrongContext, context2, true);
}
continue;
}
case JSToken.Internal:
case JSToken.Abstract:
case JSToken.Public:
case JSToken.Static:
case JSToken.Private:
case JSToken.Protected:
case JSToken.Final:
{
bool flag5;
statement = this.ParseAttributes(null, true, false, out flag5);
if (!flag5 || !(statement is Class))
{
break;
}
classList.Append(statement);
continue;
}
case JSToken.Semicolon:
{
this.GetNextToken();
continue;
}
case JSToken.EndOfFile:
this.EOFError(JSError.ErrEOF);
throw new EndOfFile();
default:
goto Label_04D9;
}
this.ReportError(JSError.OnlyClassesAllowed, statement.context.Clone(), true);
this.SkipTokensAndThrow();
continue;
Label_04D9:
this.ReportError(JSError.OnlyClassesAllowed, (statement != null) ? statement.context.Clone() : this.CurrentPositionContext(), true);
this.SkipTokensAndThrow();
continue;
}
catch (RecoveryTokenException exception)
{
if ((exception._partiallyComputedNode != null) && (exception._partiallyComputedNode is Class))
{
classList.Append((Class) exception._partiallyComputedNode);
exception._partiallyComputedNode = null;
}
if (this.IndexOfToken(NoSkipTokenSet.s_PackageBodyNoSkipTokenSet, exception) == -1)
{
throw exception;
}
continue;
}
}
}
catch (RecoveryTokenException exception2)
{
if (this.IndexOfToken(NoSkipTokenSet.s_BlockNoSkipTokenSet, exception2) == -1)
{
this.ReportError(JSError.NoRightCurly, this.CurrentPositionContext());
exception2._partiallyComputedNode = new Package(name, expression, classList, packageContext);
throw exception2;
}
}
finally
{
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_PackageBodyNoSkipTokenSet);
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_BlockNoSkipTokenSet);
}
this.GetNextToken();
ast4 = new Package(name, expression, classList, packageContext);
}
finally
{
this.Globals.ScopeStack.Pop();
}
return ast4;
}