Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / xsp / System / Web / Compilation / CodeDOMUtility.cs / 1 / CodeDOMUtility.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.Compilation {
using System.Text;
using System.Runtime.Serialization.Formatters;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System;
using System.Collections;
using System.Reflection;
using System.IO;
using System.Globalization;
using System.Web.Util;
using System.Web.UI;
using System.Web.Configuration;
using System.Diagnostics;
using Debug = System.Diagnostics.Debug;
using System.CodeDom;
using System.CodeDom.Compiler;
using Util = System.Web.UI.Util;
internal static class CodeDomUtility {
internal static BooleanSwitch WebFormsCompilation = new BooleanSwitch("WebFormsCompilation", "Outputs information about the WebForms compilation of ASPX templates");
internal /*public*/ static CodeExpression GenerateExpressionForValue(PropertyInfo propertyInfo, object value, Type valueType) {
#if DEBUG
if (WebFormsCompilation.Enabled) {
Debug.WriteLine("GenerateExpressionForValue() {");
Debug.Indent();
}
#endif // DEBUG
CodeExpression rightExpr = null;
if (valueType == null) {
throw new ArgumentNullException("valueType");
}
PropertyDescriptor pd = null;
if (propertyInfo != null) {
pd = TypeDescriptor.GetProperties(propertyInfo.ReflectedType)[propertyInfo.Name];
}
if (valueType == typeof(string) && value is string) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("simple string");
rightExpr = new CodePrimitiveExpression((string)value);
}
else if (valueType.IsPrimitive) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("primitive");
rightExpr = new CodePrimitiveExpression(value);
}
else if (propertyInfo == null && valueType == typeof(object) &&
(value == null || value.GetType().IsPrimitive)) {
// If the type is object, and the value is a primitive, simply use a
// CodePrimitiveExpression instead of trying to use a TypeConverter (VSWhidbey 518773)
if (WebFormsCompilation.Enabled) Debug.WriteLine("primitive to object");
rightExpr = new CodePrimitiveExpression(value);
}
else if (valueType.IsArray) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("array");
Array array = (Array)value;
CodeArrayCreateExpression exp = new CodeArrayCreateExpression();
exp.CreateType = new CodeTypeReference(valueType.GetElementType());
if (array != null) {
foreach (object o in array) {
exp.Initializers.Add(GenerateExpressionForValue(null, o, valueType.GetElementType()));
}
}
rightExpr = exp;
}
else if (valueType == typeof(Type)) {
rightExpr = new CodeTypeOfExpression((Type) value);
}
else {
if (WebFormsCompilation.Enabled) Debug.WriteLine("other");
TypeConverter converter = null;
if (pd != null) {
converter = pd.Converter;
}
else {
converter = TypeDescriptor.GetConverter(valueType);
}
bool added = false;
if (converter != null) {
InstanceDescriptor desc = null;
if (converter.CanConvertTo(typeof(InstanceDescriptor))) {
desc = (InstanceDescriptor)converter.ConvertTo(value, typeof(InstanceDescriptor));
}
if (desc != null) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("has converter with instance descriptor");
// static field ref...
//
if (desc.MemberInfo is FieldInfo) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("persistinfo is a field ref");
CodeFieldReferenceExpression fieldRef = new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(desc.MemberInfo.DeclaringType.FullName), desc.MemberInfo.Name);
rightExpr = fieldRef;
added = true;
}
// static property ref
else if (desc.MemberInfo is PropertyInfo) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("persistinfo is a property ref");
CodePropertyReferenceExpression propRef = new CodePropertyReferenceExpression(new CodeTypeReferenceExpression(desc.MemberInfo.DeclaringType.FullName), desc.MemberInfo.Name);
rightExpr = propRef;
added = true;
}
// static method invoke
//
else {
object[] args = new object[desc.Arguments.Count];
desc.Arguments.CopyTo(args, 0);
CodeExpression[] expressions = new CodeExpression[args.Length];
if (desc.MemberInfo is MethodInfo) {
MethodInfo mi = (MethodInfo)desc.MemberInfo;
ParameterInfo[] parameters = mi.GetParameters();
for(int i = 0; i < args.Length; i++) {
expressions[i] = GenerateExpressionForValue(null, args[i], parameters[i].ParameterType);
}
if (WebFormsCompilation.Enabled) Debug.WriteLine("persistinfo is a method invoke");
CodeMethodInvokeExpression methCall = new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(desc.MemberInfo.DeclaringType.FullName), desc.MemberInfo.Name);
foreach (CodeExpression e in expressions) {
methCall.Parameters.Add(e);
}
rightExpr = new CodeCastExpression(valueType, methCall);
added = true;
}
else if (desc.MemberInfo is ConstructorInfo) {
ConstructorInfo ci = (ConstructorInfo)desc.MemberInfo;
ParameterInfo[] parameters = ci.GetParameters();
for(int i = 0; i < args.Length; i++) {
expressions[i] = GenerateExpressionForValue(null, args[i], parameters[i].ParameterType);
}
if (WebFormsCompilation.Enabled) Debug.WriteLine("persistinfo is a constructor call");
CodeObjectCreateExpression objectCreate = new CodeObjectCreateExpression(desc.MemberInfo.DeclaringType.FullName);
foreach (CodeExpression e in expressions) {
objectCreate.Parameters.Add(e);
}
rightExpr = objectCreate;
added = true;
}
}
}
}
if (!added) {
#if DEBUG
if (WebFormsCompilation.Enabled) {
Debug.WriteLine("unabled to determine type, attempting Parse");
Debug.Indent();
Debug.WriteLine("value.GetType == " + value.GetType().FullName);
Debug.WriteLine("value.ToString == " + value.ToString());
Debug.WriteLine("valueType == " + valueType.FullName);
if (propertyInfo != null) {
Debug.WriteLine("propertyInfo == " + propertyInfo.ReflectedType.FullName + "." + propertyInfo.Name + " : " + propertyInfo.PropertyType.FullName);
}
else {
Debug.WriteLine("propertyInfo == (null)");
}
Debug.Unindent();
}
#endif // DEBUG
// Not a known type: try calling Parse
// If possible, pass it an InvariantCulture (ASURT 79412)
if (valueType.GetMethod("Parse", new Type[] {typeof(string), typeof(CultureInfo)}) != null) {
CodeMethodInvokeExpression methCall = new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(valueType.FullName), "Parse");
// Convert the object to a string.
// If we have a type converter, use it to convert to a string in a culture
// invariant way (ASURT 87094)
string s;
if (converter != null) {
s = converter.ConvertToInvariantString(value);
}
else {
s = value.ToString();
}
methCall.Parameters.Add(new CodePrimitiveExpression(s));
methCall.Parameters.Add(new CodePropertyReferenceExpression(new CodeTypeReferenceExpression(typeof(CultureInfo)), "InvariantCulture"));
rightExpr = methCall;
}
else if (valueType.GetMethod("Parse", new Type[] {typeof(string)}) != null) {
// Otherwise, settle for passing just the string
CodeMethodInvokeExpression methCall = new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(valueType.FullName), "Parse");
methCall.Parameters.Add(new CodePrimitiveExpression(value.ToString()));
rightExpr = methCall;
}
else {
throw new HttpException(SR.GetString(SR.CantGenPropertySet, propertyInfo.Name, valueType.FullName));
}
}
}
#if DEBUG
if (WebFormsCompilation.Enabled) {
Debug.Unindent();
Debug.WriteLine("}");
}
#endif // DEBUG
return rightExpr;
}
// Adds a property assignment statement to "statements". This takes into account
// checking for nulls when the destination property type is a value type. This can
// also generate expressions that use IAttributeAccessor when desinationType is null.
internal static void CreatePropertySetStatements(CodeStatementCollection methodStatements, CodeStatementCollection statements,
CodeExpression target, string targetPropertyName, Type destinationType,
CodeExpression value,
CodeLinePragma linePragma) {
// Generates:
// If destination is property:
// If destination type is string:
// {{target}}.{{targetPropertyName}} = System.Convert.ToString( {{value}} );
// Else If destination type is reference type:
// {{target}}.{{targetPropertyName}} = ( {{destinationType}} ) {{value}};
// Else destination type is value type:
// {{target}}.{{targetPropertyName}} = ( {{destinationType}} ) ({value});
// Else use SetAttribute (expandos):
// ((IAttributeAccessor) {{target}} ).SetAttribute( {{targetPropertyName}} , System.Convert.ToString( {{value}} ));
bool useSetAttribute = false;
// This signifies it's using SetAttribute
if (destinationType == null) {
useSetAttribute = true;
}
if (useSetAttribute) {
// ((IAttributeAccessor) {{target}} ).SetAttribute( {{targetPropertyName}} , System.Convert.ToString( {{value}} ));
CodeMethodInvokeExpression methodInvoke = new CodeMethodInvokeExpression();
CodeExpressionStatement setAttributeCall = new CodeExpressionStatement(methodInvoke);
setAttributeCall.LinePragma = linePragma;
methodInvoke.Method.TargetObject = new CodeCastExpression(typeof(IAttributeAccessor), target);
methodInvoke.Method.MethodName = "SetAttribute";
methodInvoke.Parameters.Add(new CodePrimitiveExpression(targetPropertyName));
methodInvoke.Parameters.Add(GenerateConvertToString(value));
statements.Add(setAttributeCall);
}
else {
// Use the property setter. Must take into account that null cannot be
// cast to a value type, so we have to explicitly check for that in
// the code we generate.
if (destinationType.IsValueType) {
// {{target}}.{{targetPropertyName}} = ( {{destinationType}} ) ({value});
CodeAssignStatement assignStmt = new CodeAssignStatement(
BuildPropertyReferenceExpression(target, targetPropertyName),
new CodeCastExpression(destinationType, value));
assignStmt.LinePragma = linePragma;
statements.Add(assignStmt);
}
else {
CodeExpression rightSide;
if (destinationType == typeof(string)) {
// {{target}}.{{targetPropertyName}} = System.Convert.ToString( {{value}} );
rightSide = GenerateConvertToString(value);
}
else {
// {{target}}.{{targetPropertyName}} = ( {{destinationType}} ) {{value}};
rightSide = new CodeCastExpression(destinationType, value);
}
CodeAssignStatement assignStmt = new CodeAssignStatement(
BuildPropertyReferenceExpression(target, targetPropertyName),
rightSide);
assignStmt.LinePragma = linePragma;
statements.Add(assignStmt);
}
}
}
// Generate a call to System.Convert.ToString(value, CultureInfo.CurrentCulture)
internal static CodeExpression GenerateConvertToString(CodeExpression value) {
CodeMethodInvokeExpression invokeExpr = new CodeMethodInvokeExpression();
invokeExpr.Method.TargetObject = new CodeTypeReferenceExpression(typeof(System.Convert));
invokeExpr.Method.MethodName = "ToString";
invokeExpr.Parameters.Add(value);
invokeExpr.Parameters.Add(new CodePropertyReferenceExpression(
new CodeTypeReferenceExpression(typeof(CultureInfo)), "CurrentCulture"));
return invokeExpr;
}
// Prepend a string TO the CompilerOptions string
internal static void PrependCompilerOption(
CompilerParameters compilParams, string compilerOptions) {
if (compilParams.CompilerOptions == null)
compilParams.CompilerOptions = compilerOptions;
else
compilParams.CompilerOptions = compilerOptions + " " + compilParams.CompilerOptions;
}
// Append a string to the CompilerOptions string
internal static void AppendCompilerOption(
CompilerParameters compilParams, string compilerOptions) {
if (compilParams.CompilerOptions == null)
compilParams.CompilerOptions = compilerOptions;
else
compilParams.CompilerOptions = compilParams.CompilerOptions + " " + compilerOptions;
}
internal static CodeExpression BuildPropertyReferenceExpression(
CodeExpression objRefExpr, string propName) {
// The name may contain several '.' separated properties, so we
// need to make sure we build the CodeDom accordingly (ASURT 91875, VSWhidbey 313018)
string[] parts = propName.Split('.');
CodeExpression ret = objRefExpr;
foreach (string part in parts)
ret = new CodePropertyReferenceExpression(ret, part);
return ret;
}
internal static CodeCastExpression BuildJSharpCastExpression(Type castType, CodeExpression expression) {
// VJ# does not support automatic boxing of value types, so passing a simple type, say a bool, into a method
// expecting an object will give a compiler error. We are working around this issue by adding special code for
// VJ# that will cast the expression for boxing. When the VJ# team adds implicit boxing of value types, we
// should remove this code. VSWhidbey 269028
CodeCastExpression castedExpression = new CodeCastExpression(castType, expression);
castedExpression.UserData.Add("CastIsBoxing", true);
return castedExpression;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.Compilation {
using System.Text;
using System.Runtime.Serialization.Formatters;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System;
using System.Collections;
using System.Reflection;
using System.IO;
using System.Globalization;
using System.Web.Util;
using System.Web.UI;
using System.Web.Configuration;
using System.Diagnostics;
using Debug = System.Diagnostics.Debug;
using System.CodeDom;
using System.CodeDom.Compiler;
using Util = System.Web.UI.Util;
internal static class CodeDomUtility {
internal static BooleanSwitch WebFormsCompilation = new BooleanSwitch("WebFormsCompilation", "Outputs information about the WebForms compilation of ASPX templates");
internal /*public*/ static CodeExpression GenerateExpressionForValue(PropertyInfo propertyInfo, object value, Type valueType) {
#if DEBUG
if (WebFormsCompilation.Enabled) {
Debug.WriteLine("GenerateExpressionForValue() {");
Debug.Indent();
}
#endif // DEBUG
CodeExpression rightExpr = null;
if (valueType == null) {
throw new ArgumentNullException("valueType");
}
PropertyDescriptor pd = null;
if (propertyInfo != null) {
pd = TypeDescriptor.GetProperties(propertyInfo.ReflectedType)[propertyInfo.Name];
}
if (valueType == typeof(string) && value is string) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("simple string");
rightExpr = new CodePrimitiveExpression((string)value);
}
else if (valueType.IsPrimitive) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("primitive");
rightExpr = new CodePrimitiveExpression(value);
}
else if (propertyInfo == null && valueType == typeof(object) &&
(value == null || value.GetType().IsPrimitive)) {
// If the type is object, and the value is a primitive, simply use a
// CodePrimitiveExpression instead of trying to use a TypeConverter (VSWhidbey 518773)
if (WebFormsCompilation.Enabled) Debug.WriteLine("primitive to object");
rightExpr = new CodePrimitiveExpression(value);
}
else if (valueType.IsArray) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("array");
Array array = (Array)value;
CodeArrayCreateExpression exp = new CodeArrayCreateExpression();
exp.CreateType = new CodeTypeReference(valueType.GetElementType());
if (array != null) {
foreach (object o in array) {
exp.Initializers.Add(GenerateExpressionForValue(null, o, valueType.GetElementType()));
}
}
rightExpr = exp;
}
else if (valueType == typeof(Type)) {
rightExpr = new CodeTypeOfExpression((Type) value);
}
else {
if (WebFormsCompilation.Enabled) Debug.WriteLine("other");
TypeConverter converter = null;
if (pd != null) {
converter = pd.Converter;
}
else {
converter = TypeDescriptor.GetConverter(valueType);
}
bool added = false;
if (converter != null) {
InstanceDescriptor desc = null;
if (converter.CanConvertTo(typeof(InstanceDescriptor))) {
desc = (InstanceDescriptor)converter.ConvertTo(value, typeof(InstanceDescriptor));
}
if (desc != null) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("has converter with instance descriptor");
// static field ref...
//
if (desc.MemberInfo is FieldInfo) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("persistinfo is a field ref");
CodeFieldReferenceExpression fieldRef = new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(desc.MemberInfo.DeclaringType.FullName), desc.MemberInfo.Name);
rightExpr = fieldRef;
added = true;
}
// static property ref
else if (desc.MemberInfo is PropertyInfo) {
if (WebFormsCompilation.Enabled) Debug.WriteLine("persistinfo is a property ref");
CodePropertyReferenceExpression propRef = new CodePropertyReferenceExpression(new CodeTypeReferenceExpression(desc.MemberInfo.DeclaringType.FullName), desc.MemberInfo.Name);
rightExpr = propRef;
added = true;
}
// static method invoke
//
else {
object[] args = new object[desc.Arguments.Count];
desc.Arguments.CopyTo(args, 0);
CodeExpression[] expressions = new CodeExpression[args.Length];
if (desc.MemberInfo is MethodInfo) {
MethodInfo mi = (MethodInfo)desc.MemberInfo;
ParameterInfo[] parameters = mi.GetParameters();
for(int i = 0; i < args.Length; i++) {
expressions[i] = GenerateExpressionForValue(null, args[i], parameters[i].ParameterType);
}
if (WebFormsCompilation.Enabled) Debug.WriteLine("persistinfo is a method invoke");
CodeMethodInvokeExpression methCall = new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(desc.MemberInfo.DeclaringType.FullName), desc.MemberInfo.Name);
foreach (CodeExpression e in expressions) {
methCall.Parameters.Add(e);
}
rightExpr = new CodeCastExpression(valueType, methCall);
added = true;
}
else if (desc.MemberInfo is ConstructorInfo) {
ConstructorInfo ci = (ConstructorInfo)desc.MemberInfo;
ParameterInfo[] parameters = ci.GetParameters();
for(int i = 0; i < args.Length; i++) {
expressions[i] = GenerateExpressionForValue(null, args[i], parameters[i].ParameterType);
}
if (WebFormsCompilation.Enabled) Debug.WriteLine("persistinfo is a constructor call");
CodeObjectCreateExpression objectCreate = new CodeObjectCreateExpression(desc.MemberInfo.DeclaringType.FullName);
foreach (CodeExpression e in expressions) {
objectCreate.Parameters.Add(e);
}
rightExpr = objectCreate;
added = true;
}
}
}
}
if (!added) {
#if DEBUG
if (WebFormsCompilation.Enabled) {
Debug.WriteLine("unabled to determine type, attempting Parse");
Debug.Indent();
Debug.WriteLine("value.GetType == " + value.GetType().FullName);
Debug.WriteLine("value.ToString == " + value.ToString());
Debug.WriteLine("valueType == " + valueType.FullName);
if (propertyInfo != null) {
Debug.WriteLine("propertyInfo == " + propertyInfo.ReflectedType.FullName + "." + propertyInfo.Name + " : " + propertyInfo.PropertyType.FullName);
}
else {
Debug.WriteLine("propertyInfo == (null)");
}
Debug.Unindent();
}
#endif // DEBUG
// Not a known type: try calling Parse
// If possible, pass it an InvariantCulture (ASURT 79412)
if (valueType.GetMethod("Parse", new Type[] {typeof(string), typeof(CultureInfo)}) != null) {
CodeMethodInvokeExpression methCall = new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(valueType.FullName), "Parse");
// Convert the object to a string.
// If we have a type converter, use it to convert to a string in a culture
// invariant way (ASURT 87094)
string s;
if (converter != null) {
s = converter.ConvertToInvariantString(value);
}
else {
s = value.ToString();
}
methCall.Parameters.Add(new CodePrimitiveExpression(s));
methCall.Parameters.Add(new CodePropertyReferenceExpression(new CodeTypeReferenceExpression(typeof(CultureInfo)), "InvariantCulture"));
rightExpr = methCall;
}
else if (valueType.GetMethod("Parse", new Type[] {typeof(string)}) != null) {
// Otherwise, settle for passing just the string
CodeMethodInvokeExpression methCall = new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(valueType.FullName), "Parse");
methCall.Parameters.Add(new CodePrimitiveExpression(value.ToString()));
rightExpr = methCall;
}
else {
throw new HttpException(SR.GetString(SR.CantGenPropertySet, propertyInfo.Name, valueType.FullName));
}
}
}
#if DEBUG
if (WebFormsCompilation.Enabled) {
Debug.Unindent();
Debug.WriteLine("}");
}
#endif // DEBUG
return rightExpr;
}
// Adds a property assignment statement to "statements". This takes into account
// checking for nulls when the destination property type is a value type. This can
// also generate expressions that use IAttributeAccessor when desinationType is null.
internal static void CreatePropertySetStatements(CodeStatementCollection methodStatements, CodeStatementCollection statements,
CodeExpression target, string targetPropertyName, Type destinationType,
CodeExpression value,
CodeLinePragma linePragma) {
// Generates:
// If destination is property:
// If destination type is string:
// {{target}}.{{targetPropertyName}} = System.Convert.ToString( {{value}} );
// Else If destination type is reference type:
// {{target}}.{{targetPropertyName}} = ( {{destinationType}} ) {{value}};
// Else destination type is value type:
// {{target}}.{{targetPropertyName}} = ( {{destinationType}} ) ({value});
// Else use SetAttribute (expandos):
// ((IAttributeAccessor) {{target}} ).SetAttribute( {{targetPropertyName}} , System.Convert.ToString( {{value}} ));
bool useSetAttribute = false;
// This signifies it's using SetAttribute
if (destinationType == null) {
useSetAttribute = true;
}
if (useSetAttribute) {
// ((IAttributeAccessor) {{target}} ).SetAttribute( {{targetPropertyName}} , System.Convert.ToString( {{value}} ));
CodeMethodInvokeExpression methodInvoke = new CodeMethodInvokeExpression();
CodeExpressionStatement setAttributeCall = new CodeExpressionStatement(methodInvoke);
setAttributeCall.LinePragma = linePragma;
methodInvoke.Method.TargetObject = new CodeCastExpression(typeof(IAttributeAccessor), target);
methodInvoke.Method.MethodName = "SetAttribute";
methodInvoke.Parameters.Add(new CodePrimitiveExpression(targetPropertyName));
methodInvoke.Parameters.Add(GenerateConvertToString(value));
statements.Add(setAttributeCall);
}
else {
// Use the property setter. Must take into account that null cannot be
// cast to a value type, so we have to explicitly check for that in
// the code we generate.
if (destinationType.IsValueType) {
// {{target}}.{{targetPropertyName}} = ( {{destinationType}} ) ({value});
CodeAssignStatement assignStmt = new CodeAssignStatement(
BuildPropertyReferenceExpression(target, targetPropertyName),
new CodeCastExpression(destinationType, value));
assignStmt.LinePragma = linePragma;
statements.Add(assignStmt);
}
else {
CodeExpression rightSide;
if (destinationType == typeof(string)) {
// {{target}}.{{targetPropertyName}} = System.Convert.ToString( {{value}} );
rightSide = GenerateConvertToString(value);
}
else {
// {{target}}.{{targetPropertyName}} = ( {{destinationType}} ) {{value}};
rightSide = new CodeCastExpression(destinationType, value);
}
CodeAssignStatement assignStmt = new CodeAssignStatement(
BuildPropertyReferenceExpression(target, targetPropertyName),
rightSide);
assignStmt.LinePragma = linePragma;
statements.Add(assignStmt);
}
}
}
// Generate a call to System.Convert.ToString(value, CultureInfo.CurrentCulture)
internal static CodeExpression GenerateConvertToString(CodeExpression value) {
CodeMethodInvokeExpression invokeExpr = new CodeMethodInvokeExpression();
invokeExpr.Method.TargetObject = new CodeTypeReferenceExpression(typeof(System.Convert));
invokeExpr.Method.MethodName = "ToString";
invokeExpr.Parameters.Add(value);
invokeExpr.Parameters.Add(new CodePropertyReferenceExpression(
new CodeTypeReferenceExpression(typeof(CultureInfo)), "CurrentCulture"));
return invokeExpr;
}
// Prepend a string TO the CompilerOptions string
internal static void PrependCompilerOption(
CompilerParameters compilParams, string compilerOptions) {
if (compilParams.CompilerOptions == null)
compilParams.CompilerOptions = compilerOptions;
else
compilParams.CompilerOptions = compilerOptions + " " + compilParams.CompilerOptions;
}
// Append a string to the CompilerOptions string
internal static void AppendCompilerOption(
CompilerParameters compilParams, string compilerOptions) {
if (compilParams.CompilerOptions == null)
compilParams.CompilerOptions = compilerOptions;
else
compilParams.CompilerOptions = compilParams.CompilerOptions + " " + compilerOptions;
}
internal static CodeExpression BuildPropertyReferenceExpression(
CodeExpression objRefExpr, string propName) {
// The name may contain several '.' separated properties, so we
// need to make sure we build the CodeDom accordingly (ASURT 91875, VSWhidbey 313018)
string[] parts = propName.Split('.');
CodeExpression ret = objRefExpr;
foreach (string part in parts)
ret = new CodePropertyReferenceExpression(ret, part);
return ret;
}
internal static CodeCastExpression BuildJSharpCastExpression(Type castType, CodeExpression expression) {
// VJ# does not support automatic boxing of value types, so passing a simple type, say a bool, into a method
// expecting an object will give a compiler error. We are working around this issue by adding special code for
// VJ# that will cast the expression for boxing. When the VJ# team adds implicit boxing of value types, we
// should remove this code. VSWhidbey 269028
CodeCastExpression castedExpression = new CodeCastExpression(castType, expression);
castedExpression.UserData.Add("CastIsBoxing", true);
return castedExpression;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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