Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / ndp / fx / src / CompMod / System / CodeDOM / Compiler / CodeValidator.cs / 1 / CodeValidator.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.CodeDom.Compiler {
using System;
using System.CodeDom;
using System.Collections;
using System.Globalization;
using System.IO;
// This is an internal helper class which walks the tree for the ValidateIdentifiers API in the CodeGenerator. For the most part the generator code has been copied and
// turned into validation code. This code will only validate identifiers and types to check that they are ok in a language
// independent manner. By default, this will not be turned on. This gives clients of codedom a mechanism to
// protect themselves against certain types of code injection attacks (using identifier and type names).
// You can pass in any node in the tree that is a subclass of CodeObject.
internal class CodeValidator
{
private static readonly char[] newLineChars = new char[] {'\r', '\n', '\u2028', '\u2029', '\u0085'};
internal void ValidateIdentifiers(CodeObject e) {
if (e is CodeCompileUnit) {
ValidateCodeCompileUnit((CodeCompileUnit)e);
}
else if (e is CodeComment) {
ValidateComment((CodeComment)e);
}
else if (e is CodeExpression) {
ValidateExpression((CodeExpression)e);
}
else if (e is CodeNamespace) {
ValidateNamespace((CodeNamespace)e);
}
else if (e is CodeNamespaceImport) {
ValidateNamespaceImport((CodeNamespaceImport)e);
}
else if (e is CodeStatement) {
ValidateStatement((CodeStatement)e);
}
else if (e is CodeTypeMember) {
ValidateTypeMember((CodeTypeMember)e);
}
else if (e is CodeTypeReference) {
ValidateTypeReference((CodeTypeReference)e);
}
else if (e is CodeDirective) {
ValidateCodeDirective((CodeDirective) e);
}
else {
throw new ArgumentException(SR.GetString(SR.InvalidElementType, e.GetType().FullName), "e");
}
}
private void ValidateTypeMember(CodeTypeMember e) {
ValidateCommentStatements(e.Comments);
ValidateCodeDirectives(e.StartDirectives);
ValidateCodeDirectives(e.EndDirectives);
if (e.LinePragma != null) ValidateLinePragmaStart(e.LinePragma);
if (e is CodeMemberEvent) {
ValidateEvent((CodeMemberEvent)e);
}
else if (e is CodeMemberField) {
ValidateField((CodeMemberField)e);
}
else if (e is CodeMemberMethod) {
ValidateMemberMethod((CodeMemberMethod)e);
}
else if (e is CodeMemberProperty) {
ValidateProperty((CodeMemberProperty)e);
}
else if (e is CodeSnippetTypeMember) {
ValidateSnippetMember((CodeSnippetTypeMember)e);
}
else if (e is CodeTypeDeclaration) {
ValidateTypeDeclaration((CodeTypeDeclaration)e);
}
else {
throw new ArgumentException(SR.GetString(SR.InvalidElementType, e.GetType().FullName), "e");
}
}
private void ValidateCodeCompileUnit(CodeCompileUnit e) {
ValidateCodeDirectives(e.StartDirectives);
ValidateCodeDirectives(e.EndDirectives);
if (e is CodeSnippetCompileUnit) {
ValidateSnippetCompileUnit((CodeSnippetCompileUnit) e);
} else {
ValidateCompileUnitStart(e);
ValidateNamespaces(e);
ValidateCompileUnitEnd(e);
}
}
private void ValidateSnippetCompileUnit(CodeSnippetCompileUnit e) {
if (e.LinePragma != null) ValidateLinePragmaStart(e.LinePragma);
}
private void ValidateCompileUnitStart(CodeCompileUnit e) {
if (e.AssemblyCustomAttributes.Count > 0) {
ValidateAttributes(e.AssemblyCustomAttributes);
}
}
private void ValidateCompileUnitEnd(CodeCompileUnit e) {
}
private void ValidateNamespaces(CodeCompileUnit e) {
foreach (CodeNamespace n in e.Namespaces) {
ValidateNamespace(n);
}
}
private void ValidateNamespace(CodeNamespace e) {
ValidateCommentStatements(e.Comments);
ValidateNamespaceStart(e);
ValidateNamespaceImports(e);
ValidateTypes(e);
}
private static void ValidateNamespaceStart(CodeNamespace e) {
if (e.Name != null && e.Name.Length > 0) {
ValidateTypeName(e,"Name",e.Name);
}
}
private void ValidateNamespaceImports(CodeNamespace e) {
IEnumerator en = e.Imports.GetEnumerator();
while (en.MoveNext()) {
CodeNamespaceImport imp = (CodeNamespaceImport)en.Current;
if (imp.LinePragma != null) ValidateLinePragmaStart(imp.LinePragma);
ValidateNamespaceImport(imp);
}
}
private static void ValidateNamespaceImport(CodeNamespaceImport e) {
ValidateTypeName(e,"Namespace",e.Namespace);
}
private void ValidateAttributes(CodeAttributeDeclarationCollection attributes) {
if (attributes.Count == 0) return;
IEnumerator en = attributes.GetEnumerator();
while (en.MoveNext()) {
CodeAttributeDeclaration current = (CodeAttributeDeclaration)en.Current;
ValidateTypeName(current,"Name",current.Name);
ValidateTypeReference(current.AttributeType);
foreach (CodeAttributeArgument arg in current.Arguments) {
ValidateAttributeArgument(arg);
}
}
}
private void ValidateAttributeArgument(CodeAttributeArgument arg) {
if (arg.Name != null && arg.Name.Length > 0) {
ValidateIdentifier(arg,"Name",arg.Name);
}
ValidateExpression(arg.Value);
}
private void ValidateTypes(CodeNamespace e) {
foreach (CodeTypeDeclaration type in e.Types) {
ValidateTypeDeclaration(type);
}
}
private void ValidateTypeDeclaration(CodeTypeDeclaration e) {
// This function can be called recursively and will modify the global variable currentClass
// We will save currentClass to a local, modify it to do whatever we want and restore it back when we exit so that it is re-entrant.
CodeTypeDeclaration savedClass = currentClass;
currentClass = e;
ValidateTypeStart(e);
ValidateTypeParameters(e.TypeParameters);
ValidateTypeMembers(e); // Recursive call can come from here.
ValidateTypeReferences(e.BaseTypes);
currentClass = savedClass;
}
private void ValidateTypeMembers(CodeTypeDeclaration e) {
foreach (CodeTypeMember currentMember in e.Members) {
ValidateTypeMember(currentMember);
}
}
private void ValidateTypeParameters(CodeTypeParameterCollection parameters) {
for (int i=0; i 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateIdentifier(e,"Name",e.Name);
if (!IsCurrentEnum) {
ValidateTypeReference(e.Type);
}
if (e.InitExpression != null) {
ValidateExpression(e.InitExpression);
}
}
private void ValidateConstructor(CodeConstructor e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateParameters(e.Parameters);
CodeExpressionCollection baseArgs = e.BaseConstructorArgs;
CodeExpressionCollection thisArgs = e.ChainedConstructorArgs;
if (baseArgs.Count > 0) {
ValidateExpressionList(baseArgs);
}
if (thisArgs.Count > 0) {
ValidateExpressionList(thisArgs);
}
ValidateStatements(e.Statements);
}
private void ValidateProperty(CodeMemberProperty e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateTypeReference(e.Type);
ValidateTypeReferences(e.ImplementationTypes);
if (e.PrivateImplementationType != null && !IsCurrentInterface) {
ValidateTypeReference(e.PrivateImplementationType);
}
if (e.Parameters.Count > 0 && String.Compare(e.Name, "Item", StringComparison.OrdinalIgnoreCase) == 0) {
ValidateParameters(e.Parameters);
}
else {
ValidateIdentifier(e,"Name",e.Name);
}
if (e.HasGet) {
if (!(IsCurrentInterface || (e.Attributes & MemberAttributes.ScopeMask) == MemberAttributes.Abstract)) {
ValidateStatements(e.GetStatements);
}
}
if (e.HasSet) {
if (!(IsCurrentInterface || (e.Attributes & MemberAttributes.ScopeMask) == MemberAttributes.Abstract)) {
ValidateStatements(e.SetStatements);
}
}
}
private void ValidateMemberMethod(CodeMemberMethod e) {
ValidateCommentStatements(e.Comments);
if (e.LinePragma != null) ValidateLinePragmaStart(e.LinePragma);
ValidateTypeParameters(e.TypeParameters);
ValidateTypeReferences(e.ImplementationTypes);
if (e is CodeEntryPointMethod) {
ValidateStatements(((CodeEntryPointMethod)e).Statements);
}
else if (e is CodeConstructor) {
ValidateConstructor((CodeConstructor)e);
}
else if (e is CodeTypeConstructor) {
ValidateTypeConstructor((CodeTypeConstructor)e);
}
else {
ValidateMethod(e);
}
}
private void ValidateTypeConstructor(CodeTypeConstructor e) {
ValidateStatements(e.Statements);
}
private void ValidateMethod(CodeMemberMethod e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
if (e.ReturnTypeCustomAttributes.Count > 0) {
ValidateAttributes(e.ReturnTypeCustomAttributes);
}
ValidateTypeReference(e.ReturnType);
if (e.PrivateImplementationType != null) {
ValidateTypeReference(e.PrivateImplementationType);
}
ValidateIdentifier(e,"Name",e.Name);
ValidateParameters(e.Parameters);
if (!IsCurrentInterface
&& (e.Attributes & MemberAttributes.ScopeMask) != MemberAttributes.Abstract) {
ValidateStatements(e.Statements);
}
}
private void ValidateSnippetMember(CodeSnippetTypeMember e) {
}
private void ValidateTypeStart(CodeTypeDeclaration e) {
ValidateCommentStatements(e.Comments);
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateIdentifier(e,"Name",e.Name);
if (IsCurrentDelegate) {
CodeTypeDelegate del = (CodeTypeDelegate)e;
ValidateTypeReference(del.ReturnType);
ValidateParameters(del.Parameters);
} else {
foreach (CodeTypeReference typeRef in e.BaseTypes) {
ValidateTypeReference(typeRef);
}
}
}
private void ValidateCommentStatements(CodeCommentStatementCollection e) {
foreach (CodeCommentStatement comment in e) {
ValidateCommentStatement(comment);
}
}
private void ValidateCommentStatement(CodeCommentStatement e) {
ValidateComment(e.Comment);
}
private void ValidateComment(CodeComment e) {
}
private void ValidateStatement(CodeStatement e) {
ValidateCodeDirectives(e.StartDirectives);
ValidateCodeDirectives(e.EndDirectives);
if (e is CodeCommentStatement) {
ValidateCommentStatement((CodeCommentStatement)e);
}
else if (e is CodeMethodReturnStatement) {
ValidateMethodReturnStatement((CodeMethodReturnStatement)e);
}
else if (e is CodeConditionStatement) {
ValidateConditionStatement((CodeConditionStatement)e);
}
else if (e is CodeTryCatchFinallyStatement) {
ValidateTryCatchFinallyStatement((CodeTryCatchFinallyStatement)e);
}
else if (e is CodeAssignStatement) {
ValidateAssignStatement((CodeAssignStatement)e);
}
else if (e is CodeExpressionStatement) {
ValidateExpressionStatement((CodeExpressionStatement)e);
}
else if (e is CodeIterationStatement) {
ValidateIterationStatement((CodeIterationStatement)e);
}
else if (e is CodeThrowExceptionStatement) {
ValidateThrowExceptionStatement((CodeThrowExceptionStatement)e);
}
else if (e is CodeSnippetStatement) {
ValidateSnippetStatement((CodeSnippetStatement)e);
}
else if (e is CodeVariableDeclarationStatement) {
ValidateVariableDeclarationStatement((CodeVariableDeclarationStatement)e);
}
else if (e is CodeAttachEventStatement) {
ValidateAttachEventStatement((CodeAttachEventStatement)e);
}
else if (e is CodeRemoveEventStatement) {
ValidateRemoveEventStatement((CodeRemoveEventStatement)e);
}
else if (e is CodeGotoStatement) {
ValidateGotoStatement((CodeGotoStatement)e);
}
else if (e is CodeLabeledStatement) {
ValidateLabeledStatement((CodeLabeledStatement)e);
}
else {
throw new ArgumentException(SR.GetString(SR.InvalidElementType, e.GetType().FullName), "e");
}
}
private void ValidateStatements(CodeStatementCollection stms) {
IEnumerator en = stms.GetEnumerator();
while (en.MoveNext()) {
ValidateStatement((CodeStatement)en.Current);
}
}
private void ValidateExpressionStatement(CodeExpressionStatement e) {
ValidateExpression(e.Expression);
}
private void ValidateIterationStatement(CodeIterationStatement e) {
ValidateStatement(e.InitStatement);
ValidateExpression(e.TestExpression);
ValidateStatement(e.IncrementStatement);
ValidateStatements(e.Statements);
}
private void ValidateThrowExceptionStatement(CodeThrowExceptionStatement e) {
if (e.ToThrow != null) {
ValidateExpression(e.ToThrow);
}
}
private void ValidateMethodReturnStatement(CodeMethodReturnStatement e) {
if (e.Expression != null) {
ValidateExpression(e.Expression);
}
}
private void ValidateConditionStatement(CodeConditionStatement e) {
ValidateExpression(e.Condition);
ValidateStatements(e.TrueStatements);
CodeStatementCollection falseStatemetns = e.FalseStatements;
if (falseStatemetns.Count > 0) {
ValidateStatements(e.FalseStatements);
}
}
private void ValidateTryCatchFinallyStatement(CodeTryCatchFinallyStatement e) {
ValidateStatements(e.TryStatements);
CodeCatchClauseCollection catches = e.CatchClauses;
if (catches.Count > 0) {
IEnumerator en = catches.GetEnumerator();
while (en.MoveNext()) {
CodeCatchClause current = (CodeCatchClause)en.Current;
ValidateTypeReference(current.CatchExceptionType);
ValidateIdentifier(current,"LocalName",current.LocalName);
ValidateStatements(current.Statements);
}
}
CodeStatementCollection finallyStatements = e.FinallyStatements;
if (finallyStatements.Count > 0) {
ValidateStatements(finallyStatements);
}
}
private void ValidateAssignStatement(CodeAssignStatement e) {
ValidateExpression(e.Left);
ValidateExpression(e.Right);
}
private void ValidateAttachEventStatement(CodeAttachEventStatement e) {
ValidateEventReferenceExpression(e.Event);
ValidateExpression(e.Listener);
}
private void ValidateRemoveEventStatement(CodeRemoveEventStatement e) {
ValidateEventReferenceExpression(e.Event);
ValidateExpression(e.Listener);
}
private static void ValidateGotoStatement(CodeGotoStatement e) {
ValidateIdentifier(e,"Label",e.Label);
}
private void ValidateLabeledStatement(CodeLabeledStatement e) {
ValidateIdentifier(e,"Label",e.Label);
if (e.Statement != null) {
ValidateStatement(e.Statement);
}
}
private void ValidateVariableDeclarationStatement(CodeVariableDeclarationStatement e) {
ValidateTypeReference(e.Type);
ValidateIdentifier(e,"Name",e.Name);
if (e.InitExpression != null) {
ValidateExpression(e.InitExpression);
}
}
private void ValidateLinePragmaStart(CodeLinePragma e) {
}
private void ValidateEvent(CodeMemberEvent e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
if (e.PrivateImplementationType != null) {
ValidateTypeReference(e.Type);
ValidateIdentifier(e,"Name",e.Name);
}
ValidateTypeReferences(e.ImplementationTypes);
}
private void ValidateParameters(CodeParameterDeclarationExpressionCollection parameters) {
IEnumerator en = parameters.GetEnumerator();
while (en.MoveNext()) {
CodeParameterDeclarationExpression current = (CodeParameterDeclarationExpression)en.Current;
ValidateParameterDeclarationExpression(current);
}
}
private void ValidateSnippetStatement(CodeSnippetStatement e) {
}
private void ValidateExpressionList(CodeExpressionCollection expressions) {
IEnumerator en = expressions.GetEnumerator();
while (en.MoveNext()) {
ValidateExpression((CodeExpression)en.Current);
}
}
private static void ValidateTypeReference(CodeTypeReference e) {
String baseType = e.BaseType;
ValidateTypeName(e,"BaseType",baseType);
ValidateArity(e);
ValidateTypeReferences(e.TypeArguments);
}
private static void ValidateTypeReferences(CodeTypeReferenceCollection refs) {
for (int i=0; i= '0' && baseType[i] <='9') {
numTypeArgs = numTypeArgs*10 + (baseType[i] - '0');
i++;
}
totalTypeArgs += numTypeArgs;
}
}
// Check if we have zero type args for open types.
if ((totalTypeArgs != e.TypeArguments.Count) && (e.TypeArguments.Count != 0)) {
throw new ArgumentException(SR.GetString(SR.ArityDoesntMatch, baseType, e.TypeArguments.Count));
}
}
private static void ValidateTypeName(Object e, String propertyName, String typeName) {
if (!CodeGenerator.IsValidLanguageIndependentTypeName(typeName)) {
String message = SR.GetString(SR.InvalidTypeName, typeName, propertyName, e.GetType().FullName);
throw new ArgumentException(message, "typeName");
}
}
private static void ValidateIdentifier(Object e, String propertyName, String identifier) {
if (!CodeGenerator.IsValidLanguageIndependentIdentifier(identifier)) {
String message = SR.GetString(SR.InvalidLanguageIdentifier, identifier, propertyName, e.GetType().FullName);
throw new ArgumentException(message , "identifier");
}
}
private void ValidateExpression(CodeExpression e) {
if (e is CodeArrayCreateExpression) {
ValidateArrayCreateExpression((CodeArrayCreateExpression)e);
}
else if (e is CodeBaseReferenceExpression) {
ValidateBaseReferenceExpression((CodeBaseReferenceExpression)e);
}
else if (e is CodeBinaryOperatorExpression) {
ValidateBinaryOperatorExpression((CodeBinaryOperatorExpression)e);
}
else if (e is CodeCastExpression) {
ValidateCastExpression((CodeCastExpression)e);
}
else if (e is CodeDefaultValueExpression) {
ValidateDefaultValueExpression((CodeDefaultValueExpression)e);
}
else if (e is CodeDelegateCreateExpression) {
ValidateDelegateCreateExpression((CodeDelegateCreateExpression)e);
}
else if (e is CodeFieldReferenceExpression) {
ValidateFieldReferenceExpression((CodeFieldReferenceExpression)e);
}
else if (e is CodeArgumentReferenceExpression) {
ValidateArgumentReferenceExpression((CodeArgumentReferenceExpression)e);
}
else if (e is CodeVariableReferenceExpression) {
ValidateVariableReferenceExpression((CodeVariableReferenceExpression)e);
}
else if (e is CodeIndexerExpression) {
ValidateIndexerExpression((CodeIndexerExpression)e);
}
else if (e is CodeArrayIndexerExpression) {
ValidateArrayIndexerExpression((CodeArrayIndexerExpression)e);
}
else if (e is CodeSnippetExpression) {
ValidateSnippetExpression((CodeSnippetExpression)e);
}
else if (e is CodeMethodInvokeExpression) {
ValidateMethodInvokeExpression((CodeMethodInvokeExpression)e);
}
else if (e is CodeMethodReferenceExpression) {
ValidateMethodReferenceExpression((CodeMethodReferenceExpression)e);
}
else if (e is CodeEventReferenceExpression) {
ValidateEventReferenceExpression((CodeEventReferenceExpression)e);
}
else if (e is CodeDelegateInvokeExpression) {
ValidateDelegateInvokeExpression((CodeDelegateInvokeExpression)e);
}
else if (e is CodeObjectCreateExpression) {
ValidateObjectCreateExpression((CodeObjectCreateExpression)e);
}
else if (e is CodeParameterDeclarationExpression) {
ValidateParameterDeclarationExpression((CodeParameterDeclarationExpression)e);
}
else if (e is CodeDirectionExpression) {
ValidateDirectionExpression((CodeDirectionExpression)e);
}
else if (e is CodePrimitiveExpression) {
ValidatePrimitiveExpression((CodePrimitiveExpression)e);
}
else if (e is CodePropertyReferenceExpression) {
ValidatePropertyReferenceExpression((CodePropertyReferenceExpression)e);
}
else if (e is CodePropertySetValueReferenceExpression) {
ValidatePropertySetValueReferenceExpression((CodePropertySetValueReferenceExpression)e);
}
else if (e is CodeThisReferenceExpression) {
ValidateThisReferenceExpression((CodeThisReferenceExpression)e);
}
else if (e is CodeTypeReferenceExpression) {
ValidateTypeReference(((CodeTypeReferenceExpression)e).Type);
}
else if (e is CodeTypeOfExpression) {
ValidateTypeOfExpression((CodeTypeOfExpression)e);
}
else {
if (e == null) {
throw new ArgumentNullException("e");
}
else {
throw new ArgumentException(SR.GetString(SR.InvalidElementType, e.GetType().FullName), "e");
}
}
}
private void ValidateArrayCreateExpression(CodeArrayCreateExpression e) {
ValidateTypeReference(e.CreateType);
CodeExpressionCollection init = e.Initializers;
if (init.Count > 0) {
ValidateExpressionList(init);
}
else {
if (e.SizeExpression != null) {
ValidateExpression(e.SizeExpression);
}
}
}
private void ValidateBaseReferenceExpression(CodeBaseReferenceExpression e) { // Nothing to validate
}
private void ValidateBinaryOperatorExpression(CodeBinaryOperatorExpression e) {
ValidateExpression(e.Left);
ValidateExpression(e.Right);
}
private void ValidateCastExpression(CodeCastExpression e) {
ValidateTypeReference(e.TargetType);
ValidateExpression(e.Expression);
}
private static void ValidateDefaultValueExpression(CodeDefaultValueExpression e) {
ValidateTypeReference(e.Type);
}
private void ValidateDelegateCreateExpression(CodeDelegateCreateExpression e) {
ValidateTypeReference(e.DelegateType);
ValidateExpression(e.TargetObject);
ValidateIdentifier(e,"MethodName",e.MethodName);
}
private void ValidateFieldReferenceExpression(CodeFieldReferenceExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateIdentifier(e,"FieldName",e.FieldName);
}
private static void ValidateArgumentReferenceExpression(CodeArgumentReferenceExpression e) {
ValidateIdentifier(e,"ParameterName",e.ParameterName);
}
private static void ValidateVariableReferenceExpression(CodeVariableReferenceExpression e) {
ValidateIdentifier(e,"VariableName",e.VariableName);
}
private void ValidateIndexerExpression(CodeIndexerExpression e) {
ValidateExpression(e.TargetObject);
foreach(CodeExpression exp in e.Indices) {
ValidateExpression(exp);
}
}
private void ValidateArrayIndexerExpression(CodeArrayIndexerExpression e) {
ValidateExpression(e.TargetObject);
foreach(CodeExpression exp in e.Indices) {
ValidateExpression(exp);
}
}
private void ValidateSnippetExpression(CodeSnippetExpression e) {
}
private void ValidateMethodInvokeExpression(CodeMethodInvokeExpression e) {
ValidateMethodReferenceExpression(e.Method);
ValidateExpressionList(e.Parameters);
}
private void ValidateMethodReferenceExpression(CodeMethodReferenceExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateIdentifier(e,"MethodName",e.MethodName);
ValidateTypeReferences(e.TypeArguments);
}
private void ValidateEventReferenceExpression(CodeEventReferenceExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateIdentifier(e,"EventName",e.EventName);
}
private void ValidateDelegateInvokeExpression(CodeDelegateInvokeExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateExpressionList(e.Parameters);
}
private void ValidateObjectCreateExpression(CodeObjectCreateExpression e) {
ValidateTypeReference(e.CreateType);
ValidateExpressionList(e.Parameters);
}
private void ValidateParameterDeclarationExpression(CodeParameterDeclarationExpression e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateTypeReference(e.Type);
ValidateIdentifier(e,"Name",e.Name);
}
private void ValidateDirectionExpression(CodeDirectionExpression e) {
ValidateExpression(e.Expression);
}
private void ValidatePrimitiveExpression(CodePrimitiveExpression e) {
}
private void ValidatePropertyReferenceExpression(CodePropertyReferenceExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateIdentifier(e,"PropertyName",e.PropertyName);
}
private void ValidatePropertySetValueReferenceExpression(CodePropertySetValueReferenceExpression e) { // Do nothing
}
private void ValidateThisReferenceExpression(CodeThisReferenceExpression e) { // Do nothing
}
private static void ValidateTypeOfExpression(CodeTypeOfExpression e) {
ValidateTypeReference(e.Type);
}
private static void ValidateCodeDirectives(CodeDirectiveCollection e) {
for (int i=0; i
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.CodeDom.Compiler {
using System;
using System.CodeDom;
using System.Collections;
using System.Globalization;
using System.IO;
// This is an internal helper class which walks the tree for the ValidateIdentifiers API in the CodeGenerator. For the most part the generator code has been copied and
// turned into validation code. This code will only validate identifiers and types to check that they are ok in a language
// independent manner. By default, this will not be turned on. This gives clients of codedom a mechanism to
// protect themselves against certain types of code injection attacks (using identifier and type names).
// You can pass in any node in the tree that is a subclass of CodeObject.
internal class CodeValidator
{
private static readonly char[] newLineChars = new char[] {'\r', '\n', '\u2028', '\u2029', '\u0085'};
internal void ValidateIdentifiers(CodeObject e) {
if (e is CodeCompileUnit) {
ValidateCodeCompileUnit((CodeCompileUnit)e);
}
else if (e is CodeComment) {
ValidateComment((CodeComment)e);
}
else if (e is CodeExpression) {
ValidateExpression((CodeExpression)e);
}
else if (e is CodeNamespace) {
ValidateNamespace((CodeNamespace)e);
}
else if (e is CodeNamespaceImport) {
ValidateNamespaceImport((CodeNamespaceImport)e);
}
else if (e is CodeStatement) {
ValidateStatement((CodeStatement)e);
}
else if (e is CodeTypeMember) {
ValidateTypeMember((CodeTypeMember)e);
}
else if (e is CodeTypeReference) {
ValidateTypeReference((CodeTypeReference)e);
}
else if (e is CodeDirective) {
ValidateCodeDirective((CodeDirective) e);
}
else {
throw new ArgumentException(SR.GetString(SR.InvalidElementType, e.GetType().FullName), "e");
}
}
private void ValidateTypeMember(CodeTypeMember e) {
ValidateCommentStatements(e.Comments);
ValidateCodeDirectives(e.StartDirectives);
ValidateCodeDirectives(e.EndDirectives);
if (e.LinePragma != null) ValidateLinePragmaStart(e.LinePragma);
if (e is CodeMemberEvent) {
ValidateEvent((CodeMemberEvent)e);
}
else if (e is CodeMemberField) {
ValidateField((CodeMemberField)e);
}
else if (e is CodeMemberMethod) {
ValidateMemberMethod((CodeMemberMethod)e);
}
else if (e is CodeMemberProperty) {
ValidateProperty((CodeMemberProperty)e);
}
else if (e is CodeSnippetTypeMember) {
ValidateSnippetMember((CodeSnippetTypeMember)e);
}
else if (e is CodeTypeDeclaration) {
ValidateTypeDeclaration((CodeTypeDeclaration)e);
}
else {
throw new ArgumentException(SR.GetString(SR.InvalidElementType, e.GetType().FullName), "e");
}
}
private void ValidateCodeCompileUnit(CodeCompileUnit e) {
ValidateCodeDirectives(e.StartDirectives);
ValidateCodeDirectives(e.EndDirectives);
if (e is CodeSnippetCompileUnit) {
ValidateSnippetCompileUnit((CodeSnippetCompileUnit) e);
} else {
ValidateCompileUnitStart(e);
ValidateNamespaces(e);
ValidateCompileUnitEnd(e);
}
}
private void ValidateSnippetCompileUnit(CodeSnippetCompileUnit e) {
if (e.LinePragma != null) ValidateLinePragmaStart(e.LinePragma);
}
private void ValidateCompileUnitStart(CodeCompileUnit e) {
if (e.AssemblyCustomAttributes.Count > 0) {
ValidateAttributes(e.AssemblyCustomAttributes);
}
}
private void ValidateCompileUnitEnd(CodeCompileUnit e) {
}
private void ValidateNamespaces(CodeCompileUnit e) {
foreach (CodeNamespace n in e.Namespaces) {
ValidateNamespace(n);
}
}
private void ValidateNamespace(CodeNamespace e) {
ValidateCommentStatements(e.Comments);
ValidateNamespaceStart(e);
ValidateNamespaceImports(e);
ValidateTypes(e);
}
private static void ValidateNamespaceStart(CodeNamespace e) {
if (e.Name != null && e.Name.Length > 0) {
ValidateTypeName(e,"Name",e.Name);
}
}
private void ValidateNamespaceImports(CodeNamespace e) {
IEnumerator en = e.Imports.GetEnumerator();
while (en.MoveNext()) {
CodeNamespaceImport imp = (CodeNamespaceImport)en.Current;
if (imp.LinePragma != null) ValidateLinePragmaStart(imp.LinePragma);
ValidateNamespaceImport(imp);
}
}
private static void ValidateNamespaceImport(CodeNamespaceImport e) {
ValidateTypeName(e,"Namespace",e.Namespace);
}
private void ValidateAttributes(CodeAttributeDeclarationCollection attributes) {
if (attributes.Count == 0) return;
IEnumerator en = attributes.GetEnumerator();
while (en.MoveNext()) {
CodeAttributeDeclaration current = (CodeAttributeDeclaration)en.Current;
ValidateTypeName(current,"Name",current.Name);
ValidateTypeReference(current.AttributeType);
foreach (CodeAttributeArgument arg in current.Arguments) {
ValidateAttributeArgument(arg);
}
}
}
private void ValidateAttributeArgument(CodeAttributeArgument arg) {
if (arg.Name != null && arg.Name.Length > 0) {
ValidateIdentifier(arg,"Name",arg.Name);
}
ValidateExpression(arg.Value);
}
private void ValidateTypes(CodeNamespace e) {
foreach (CodeTypeDeclaration type in e.Types) {
ValidateTypeDeclaration(type);
}
}
private void ValidateTypeDeclaration(CodeTypeDeclaration e) {
// This function can be called recursively and will modify the global variable currentClass
// We will save currentClass to a local, modify it to do whatever we want and restore it back when we exit so that it is re-entrant.
CodeTypeDeclaration savedClass = currentClass;
currentClass = e;
ValidateTypeStart(e);
ValidateTypeParameters(e.TypeParameters);
ValidateTypeMembers(e); // Recursive call can come from here.
ValidateTypeReferences(e.BaseTypes);
currentClass = savedClass;
}
private void ValidateTypeMembers(CodeTypeDeclaration e) {
foreach (CodeTypeMember currentMember in e.Members) {
ValidateTypeMember(currentMember);
}
}
private void ValidateTypeParameters(CodeTypeParameterCollection parameters) {
for (int i=0; i 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateIdentifier(e,"Name",e.Name);
if (!IsCurrentEnum) {
ValidateTypeReference(e.Type);
}
if (e.InitExpression != null) {
ValidateExpression(e.InitExpression);
}
}
private void ValidateConstructor(CodeConstructor e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateParameters(e.Parameters);
CodeExpressionCollection baseArgs = e.BaseConstructorArgs;
CodeExpressionCollection thisArgs = e.ChainedConstructorArgs;
if (baseArgs.Count > 0) {
ValidateExpressionList(baseArgs);
}
if (thisArgs.Count > 0) {
ValidateExpressionList(thisArgs);
}
ValidateStatements(e.Statements);
}
private void ValidateProperty(CodeMemberProperty e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateTypeReference(e.Type);
ValidateTypeReferences(e.ImplementationTypes);
if (e.PrivateImplementationType != null && !IsCurrentInterface) {
ValidateTypeReference(e.PrivateImplementationType);
}
if (e.Parameters.Count > 0 && String.Compare(e.Name, "Item", StringComparison.OrdinalIgnoreCase) == 0) {
ValidateParameters(e.Parameters);
}
else {
ValidateIdentifier(e,"Name",e.Name);
}
if (e.HasGet) {
if (!(IsCurrentInterface || (e.Attributes & MemberAttributes.ScopeMask) == MemberAttributes.Abstract)) {
ValidateStatements(e.GetStatements);
}
}
if (e.HasSet) {
if (!(IsCurrentInterface || (e.Attributes & MemberAttributes.ScopeMask) == MemberAttributes.Abstract)) {
ValidateStatements(e.SetStatements);
}
}
}
private void ValidateMemberMethod(CodeMemberMethod e) {
ValidateCommentStatements(e.Comments);
if (e.LinePragma != null) ValidateLinePragmaStart(e.LinePragma);
ValidateTypeParameters(e.TypeParameters);
ValidateTypeReferences(e.ImplementationTypes);
if (e is CodeEntryPointMethod) {
ValidateStatements(((CodeEntryPointMethod)e).Statements);
}
else if (e is CodeConstructor) {
ValidateConstructor((CodeConstructor)e);
}
else if (e is CodeTypeConstructor) {
ValidateTypeConstructor((CodeTypeConstructor)e);
}
else {
ValidateMethod(e);
}
}
private void ValidateTypeConstructor(CodeTypeConstructor e) {
ValidateStatements(e.Statements);
}
private void ValidateMethod(CodeMemberMethod e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
if (e.ReturnTypeCustomAttributes.Count > 0) {
ValidateAttributes(e.ReturnTypeCustomAttributes);
}
ValidateTypeReference(e.ReturnType);
if (e.PrivateImplementationType != null) {
ValidateTypeReference(e.PrivateImplementationType);
}
ValidateIdentifier(e,"Name",e.Name);
ValidateParameters(e.Parameters);
if (!IsCurrentInterface
&& (e.Attributes & MemberAttributes.ScopeMask) != MemberAttributes.Abstract) {
ValidateStatements(e.Statements);
}
}
private void ValidateSnippetMember(CodeSnippetTypeMember e) {
}
private void ValidateTypeStart(CodeTypeDeclaration e) {
ValidateCommentStatements(e.Comments);
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateIdentifier(e,"Name",e.Name);
if (IsCurrentDelegate) {
CodeTypeDelegate del = (CodeTypeDelegate)e;
ValidateTypeReference(del.ReturnType);
ValidateParameters(del.Parameters);
} else {
foreach (CodeTypeReference typeRef in e.BaseTypes) {
ValidateTypeReference(typeRef);
}
}
}
private void ValidateCommentStatements(CodeCommentStatementCollection e) {
foreach (CodeCommentStatement comment in e) {
ValidateCommentStatement(comment);
}
}
private void ValidateCommentStatement(CodeCommentStatement e) {
ValidateComment(e.Comment);
}
private void ValidateComment(CodeComment e) {
}
private void ValidateStatement(CodeStatement e) {
ValidateCodeDirectives(e.StartDirectives);
ValidateCodeDirectives(e.EndDirectives);
if (e is CodeCommentStatement) {
ValidateCommentStatement((CodeCommentStatement)e);
}
else if (e is CodeMethodReturnStatement) {
ValidateMethodReturnStatement((CodeMethodReturnStatement)e);
}
else if (e is CodeConditionStatement) {
ValidateConditionStatement((CodeConditionStatement)e);
}
else if (e is CodeTryCatchFinallyStatement) {
ValidateTryCatchFinallyStatement((CodeTryCatchFinallyStatement)e);
}
else if (e is CodeAssignStatement) {
ValidateAssignStatement((CodeAssignStatement)e);
}
else if (e is CodeExpressionStatement) {
ValidateExpressionStatement((CodeExpressionStatement)e);
}
else if (e is CodeIterationStatement) {
ValidateIterationStatement((CodeIterationStatement)e);
}
else if (e is CodeThrowExceptionStatement) {
ValidateThrowExceptionStatement((CodeThrowExceptionStatement)e);
}
else if (e is CodeSnippetStatement) {
ValidateSnippetStatement((CodeSnippetStatement)e);
}
else if (e is CodeVariableDeclarationStatement) {
ValidateVariableDeclarationStatement((CodeVariableDeclarationStatement)e);
}
else if (e is CodeAttachEventStatement) {
ValidateAttachEventStatement((CodeAttachEventStatement)e);
}
else if (e is CodeRemoveEventStatement) {
ValidateRemoveEventStatement((CodeRemoveEventStatement)e);
}
else if (e is CodeGotoStatement) {
ValidateGotoStatement((CodeGotoStatement)e);
}
else if (e is CodeLabeledStatement) {
ValidateLabeledStatement((CodeLabeledStatement)e);
}
else {
throw new ArgumentException(SR.GetString(SR.InvalidElementType, e.GetType().FullName), "e");
}
}
private void ValidateStatements(CodeStatementCollection stms) {
IEnumerator en = stms.GetEnumerator();
while (en.MoveNext()) {
ValidateStatement((CodeStatement)en.Current);
}
}
private void ValidateExpressionStatement(CodeExpressionStatement e) {
ValidateExpression(e.Expression);
}
private void ValidateIterationStatement(CodeIterationStatement e) {
ValidateStatement(e.InitStatement);
ValidateExpression(e.TestExpression);
ValidateStatement(e.IncrementStatement);
ValidateStatements(e.Statements);
}
private void ValidateThrowExceptionStatement(CodeThrowExceptionStatement e) {
if (e.ToThrow != null) {
ValidateExpression(e.ToThrow);
}
}
private void ValidateMethodReturnStatement(CodeMethodReturnStatement e) {
if (e.Expression != null) {
ValidateExpression(e.Expression);
}
}
private void ValidateConditionStatement(CodeConditionStatement e) {
ValidateExpression(e.Condition);
ValidateStatements(e.TrueStatements);
CodeStatementCollection falseStatemetns = e.FalseStatements;
if (falseStatemetns.Count > 0) {
ValidateStatements(e.FalseStatements);
}
}
private void ValidateTryCatchFinallyStatement(CodeTryCatchFinallyStatement e) {
ValidateStatements(e.TryStatements);
CodeCatchClauseCollection catches = e.CatchClauses;
if (catches.Count > 0) {
IEnumerator en = catches.GetEnumerator();
while (en.MoveNext()) {
CodeCatchClause current = (CodeCatchClause)en.Current;
ValidateTypeReference(current.CatchExceptionType);
ValidateIdentifier(current,"LocalName",current.LocalName);
ValidateStatements(current.Statements);
}
}
CodeStatementCollection finallyStatements = e.FinallyStatements;
if (finallyStatements.Count > 0) {
ValidateStatements(finallyStatements);
}
}
private void ValidateAssignStatement(CodeAssignStatement e) {
ValidateExpression(e.Left);
ValidateExpression(e.Right);
}
private void ValidateAttachEventStatement(CodeAttachEventStatement e) {
ValidateEventReferenceExpression(e.Event);
ValidateExpression(e.Listener);
}
private void ValidateRemoveEventStatement(CodeRemoveEventStatement e) {
ValidateEventReferenceExpression(e.Event);
ValidateExpression(e.Listener);
}
private static void ValidateGotoStatement(CodeGotoStatement e) {
ValidateIdentifier(e,"Label",e.Label);
}
private void ValidateLabeledStatement(CodeLabeledStatement e) {
ValidateIdentifier(e,"Label",e.Label);
if (e.Statement != null) {
ValidateStatement(e.Statement);
}
}
private void ValidateVariableDeclarationStatement(CodeVariableDeclarationStatement e) {
ValidateTypeReference(e.Type);
ValidateIdentifier(e,"Name",e.Name);
if (e.InitExpression != null) {
ValidateExpression(e.InitExpression);
}
}
private void ValidateLinePragmaStart(CodeLinePragma e) {
}
private void ValidateEvent(CodeMemberEvent e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
if (e.PrivateImplementationType != null) {
ValidateTypeReference(e.Type);
ValidateIdentifier(e,"Name",e.Name);
}
ValidateTypeReferences(e.ImplementationTypes);
}
private void ValidateParameters(CodeParameterDeclarationExpressionCollection parameters) {
IEnumerator en = parameters.GetEnumerator();
while (en.MoveNext()) {
CodeParameterDeclarationExpression current = (CodeParameterDeclarationExpression)en.Current;
ValidateParameterDeclarationExpression(current);
}
}
private void ValidateSnippetStatement(CodeSnippetStatement e) {
}
private void ValidateExpressionList(CodeExpressionCollection expressions) {
IEnumerator en = expressions.GetEnumerator();
while (en.MoveNext()) {
ValidateExpression((CodeExpression)en.Current);
}
}
private static void ValidateTypeReference(CodeTypeReference e) {
String baseType = e.BaseType;
ValidateTypeName(e,"BaseType",baseType);
ValidateArity(e);
ValidateTypeReferences(e.TypeArguments);
}
private static void ValidateTypeReferences(CodeTypeReferenceCollection refs) {
for (int i=0; i= '0' && baseType[i] <='9') {
numTypeArgs = numTypeArgs*10 + (baseType[i] - '0');
i++;
}
totalTypeArgs += numTypeArgs;
}
}
// Check if we have zero type args for open types.
if ((totalTypeArgs != e.TypeArguments.Count) && (e.TypeArguments.Count != 0)) {
throw new ArgumentException(SR.GetString(SR.ArityDoesntMatch, baseType, e.TypeArguments.Count));
}
}
private static void ValidateTypeName(Object e, String propertyName, String typeName) {
if (!CodeGenerator.IsValidLanguageIndependentTypeName(typeName)) {
String message = SR.GetString(SR.InvalidTypeName, typeName, propertyName, e.GetType().FullName);
throw new ArgumentException(message, "typeName");
}
}
private static void ValidateIdentifier(Object e, String propertyName, String identifier) {
if (!CodeGenerator.IsValidLanguageIndependentIdentifier(identifier)) {
String message = SR.GetString(SR.InvalidLanguageIdentifier, identifier, propertyName, e.GetType().FullName);
throw new ArgumentException(message , "identifier");
}
}
private void ValidateExpression(CodeExpression e) {
if (e is CodeArrayCreateExpression) {
ValidateArrayCreateExpression((CodeArrayCreateExpression)e);
}
else if (e is CodeBaseReferenceExpression) {
ValidateBaseReferenceExpression((CodeBaseReferenceExpression)e);
}
else if (e is CodeBinaryOperatorExpression) {
ValidateBinaryOperatorExpression((CodeBinaryOperatorExpression)e);
}
else if (e is CodeCastExpression) {
ValidateCastExpression((CodeCastExpression)e);
}
else if (e is CodeDefaultValueExpression) {
ValidateDefaultValueExpression((CodeDefaultValueExpression)e);
}
else if (e is CodeDelegateCreateExpression) {
ValidateDelegateCreateExpression((CodeDelegateCreateExpression)e);
}
else if (e is CodeFieldReferenceExpression) {
ValidateFieldReferenceExpression((CodeFieldReferenceExpression)e);
}
else if (e is CodeArgumentReferenceExpression) {
ValidateArgumentReferenceExpression((CodeArgumentReferenceExpression)e);
}
else if (e is CodeVariableReferenceExpression) {
ValidateVariableReferenceExpression((CodeVariableReferenceExpression)e);
}
else if (e is CodeIndexerExpression) {
ValidateIndexerExpression((CodeIndexerExpression)e);
}
else if (e is CodeArrayIndexerExpression) {
ValidateArrayIndexerExpression((CodeArrayIndexerExpression)e);
}
else if (e is CodeSnippetExpression) {
ValidateSnippetExpression((CodeSnippetExpression)e);
}
else if (e is CodeMethodInvokeExpression) {
ValidateMethodInvokeExpression((CodeMethodInvokeExpression)e);
}
else if (e is CodeMethodReferenceExpression) {
ValidateMethodReferenceExpression((CodeMethodReferenceExpression)e);
}
else if (e is CodeEventReferenceExpression) {
ValidateEventReferenceExpression((CodeEventReferenceExpression)e);
}
else if (e is CodeDelegateInvokeExpression) {
ValidateDelegateInvokeExpression((CodeDelegateInvokeExpression)e);
}
else if (e is CodeObjectCreateExpression) {
ValidateObjectCreateExpression((CodeObjectCreateExpression)e);
}
else if (e is CodeParameterDeclarationExpression) {
ValidateParameterDeclarationExpression((CodeParameterDeclarationExpression)e);
}
else if (e is CodeDirectionExpression) {
ValidateDirectionExpression((CodeDirectionExpression)e);
}
else if (e is CodePrimitiveExpression) {
ValidatePrimitiveExpression((CodePrimitiveExpression)e);
}
else if (e is CodePropertyReferenceExpression) {
ValidatePropertyReferenceExpression((CodePropertyReferenceExpression)e);
}
else if (e is CodePropertySetValueReferenceExpression) {
ValidatePropertySetValueReferenceExpression((CodePropertySetValueReferenceExpression)e);
}
else if (e is CodeThisReferenceExpression) {
ValidateThisReferenceExpression((CodeThisReferenceExpression)e);
}
else if (e is CodeTypeReferenceExpression) {
ValidateTypeReference(((CodeTypeReferenceExpression)e).Type);
}
else if (e is CodeTypeOfExpression) {
ValidateTypeOfExpression((CodeTypeOfExpression)e);
}
else {
if (e == null) {
throw new ArgumentNullException("e");
}
else {
throw new ArgumentException(SR.GetString(SR.InvalidElementType, e.GetType().FullName), "e");
}
}
}
private void ValidateArrayCreateExpression(CodeArrayCreateExpression e) {
ValidateTypeReference(e.CreateType);
CodeExpressionCollection init = e.Initializers;
if (init.Count > 0) {
ValidateExpressionList(init);
}
else {
if (e.SizeExpression != null) {
ValidateExpression(e.SizeExpression);
}
}
}
private void ValidateBaseReferenceExpression(CodeBaseReferenceExpression e) { // Nothing to validate
}
private void ValidateBinaryOperatorExpression(CodeBinaryOperatorExpression e) {
ValidateExpression(e.Left);
ValidateExpression(e.Right);
}
private void ValidateCastExpression(CodeCastExpression e) {
ValidateTypeReference(e.TargetType);
ValidateExpression(e.Expression);
}
private static void ValidateDefaultValueExpression(CodeDefaultValueExpression e) {
ValidateTypeReference(e.Type);
}
private void ValidateDelegateCreateExpression(CodeDelegateCreateExpression e) {
ValidateTypeReference(e.DelegateType);
ValidateExpression(e.TargetObject);
ValidateIdentifier(e,"MethodName",e.MethodName);
}
private void ValidateFieldReferenceExpression(CodeFieldReferenceExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateIdentifier(e,"FieldName",e.FieldName);
}
private static void ValidateArgumentReferenceExpression(CodeArgumentReferenceExpression e) {
ValidateIdentifier(e,"ParameterName",e.ParameterName);
}
private static void ValidateVariableReferenceExpression(CodeVariableReferenceExpression e) {
ValidateIdentifier(e,"VariableName",e.VariableName);
}
private void ValidateIndexerExpression(CodeIndexerExpression e) {
ValidateExpression(e.TargetObject);
foreach(CodeExpression exp in e.Indices) {
ValidateExpression(exp);
}
}
private void ValidateArrayIndexerExpression(CodeArrayIndexerExpression e) {
ValidateExpression(e.TargetObject);
foreach(CodeExpression exp in e.Indices) {
ValidateExpression(exp);
}
}
private void ValidateSnippetExpression(CodeSnippetExpression e) {
}
private void ValidateMethodInvokeExpression(CodeMethodInvokeExpression e) {
ValidateMethodReferenceExpression(e.Method);
ValidateExpressionList(e.Parameters);
}
private void ValidateMethodReferenceExpression(CodeMethodReferenceExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateIdentifier(e,"MethodName",e.MethodName);
ValidateTypeReferences(e.TypeArguments);
}
private void ValidateEventReferenceExpression(CodeEventReferenceExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateIdentifier(e,"EventName",e.EventName);
}
private void ValidateDelegateInvokeExpression(CodeDelegateInvokeExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateExpressionList(e.Parameters);
}
private void ValidateObjectCreateExpression(CodeObjectCreateExpression e) {
ValidateTypeReference(e.CreateType);
ValidateExpressionList(e.Parameters);
}
private void ValidateParameterDeclarationExpression(CodeParameterDeclarationExpression e) {
if (e.CustomAttributes.Count > 0) {
ValidateAttributes(e.CustomAttributes);
}
ValidateTypeReference(e.Type);
ValidateIdentifier(e,"Name",e.Name);
}
private void ValidateDirectionExpression(CodeDirectionExpression e) {
ValidateExpression(e.Expression);
}
private void ValidatePrimitiveExpression(CodePrimitiveExpression e) {
}
private void ValidatePropertyReferenceExpression(CodePropertyReferenceExpression e) {
if (e.TargetObject != null) {
ValidateExpression(e.TargetObject);
}
ValidateIdentifier(e,"PropertyName",e.PropertyName);
}
private void ValidatePropertySetValueReferenceExpression(CodePropertySetValueReferenceExpression e) { // Do nothing
}
private void ValidateThisReferenceExpression(CodeThisReferenceExpression e) { // Do nothing
}
private static void ValidateTypeOfExpression(CodeTypeOfExpression e) {
ValidateTypeReference(e.Type);
}
private static void ValidateCodeDirectives(CodeDirectiveCollection e) {
for (int i=0; i
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