本文整理汇总了C#中System.Reflection.Emit.ILGenerator.BeginExceptionBlock方法的典型用法代码示例。如果您正苦于以下问题：C# ILGenerator.BeginExceptionBlock方法的具体用法？C# ILGenerator.BeginExceptionBlock怎么用？C# ILGenerator.BeginExceptionBlock使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Reflection.Emit.ILGenerator的用法示例。
在下文中一共展示了ILGenerator.BeginExceptionBlock方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CopyTryCatch
private void CopyTryCatch(ILGenerator Gen, int i, MethodBody Body, List<int> ExceptionTrinkets)
{
// Quick check to see if we want to walk through the list
if (!ExceptionTrinkets.Contains(i)) return;
foreach (ExceptionHandlingClause Clause in Body.ExceptionHandlingClauses)
{
if (Clause.Flags != ExceptionHandlingClauseOptions.Clause &&
Clause.Flags != ExceptionHandlingClauseOptions.Finally)
continue;
// Look for an ending of an exception block first!
if (Clause.HandlerOffset + Clause.HandlerLength == i)
Gen.EndExceptionBlock();
// If this marks the beginning of a try block, emit that
if (Clause.TryOffset == i)
Gen.BeginExceptionBlock();
// Also check for the beginning of a catch block
if (Clause.HandlerOffset == i && Clause.Flags == ExceptionHandlingClauseOptions.Clause)
Gen.BeginCatchBlock(Clause.CatchType);
// Lastly, check for a finally block
if (Clause.HandlerOffset == i && Clause.Flags == ExceptionHandlingClauseOptions.Finally)
Gen.BeginFinallyBlock();
}
}示例2: Emit
public override void Emit(IEasyMember member, ILGenerator gen)
{
ArgumentsUtil.EmitLoadOwnerAndReference(_syncLockSource, gen);
gen.Emit(OpCodes.Call, typeof(Monitor).GetMethod("Enter"));
Label tryBlock = gen.BeginExceptionBlock();
foreach(Statement stmt in _stmts)
{
stmt.Emit(member, gen);
}
gen.BeginFinallyBlock();
ArgumentsUtil.EmitLoadOwnerAndReference(_syncLockSource, gen);
gen.Emit(OpCodes.Call, typeof(Monitor).GetMethod("Exit"));
gen.EndExceptionBlock();
}示例3: Generate
public override void Generate (ILGenerator gen)
{
gen.BeginExceptionBlock ();
tryBlock.Generate (gen);
foreach (DictionaryEntry de in catchBlocks) {
CodeVariableDeclaration vd = (CodeVariableDeclaration) de.Key;
gen.BeginCatchBlock (vd.Variable.Type);
if (vd.Variable.Name.Length > 0) {
vd.Generate (gen);
// FIXME: assign exception to this local declaration
}
((CodeBlock) de.Value).Generate (gen);
}
if (!finallyBlock.IsEmpty) {
gen.BeginFinallyBlock ();
finallyBlock.Generate (gen);
}
gen.EndExceptionBlock ();
}示例4: Emit
public override void Emit(ILGenerator gen, bool labelSetAlready)
{
if (!labelSetAlready) MarkLabel(gen);
MarkSequencePoint(gen);
inputPrompt.Emit(gen, true);
Label begin = gen.DefineLabel();
gen.MarkLabel(begin);
gen.BeginExceptionBlock();
// Expected number of inputs:
gen.Emit(OpCodes.Ldc_I4, inputs.Length);
gen.Emit(OpCodes.Call, readLineMethod); // reads a line from console into a buffer and checks to make sure number of values equals expected number of values.
inputs.Emit(gen, true);
gen.BeginCatchBlock(typeof(InvalidCastException));
gen.Emit(OpCodes.Leave, begin);
gen.EndExceptionBlock();
}示例5: WriteSerializerList
static void WriteSerializerList(TypeBuilder typeBuilder, ILGenerator il, Type type, MethodInfo valueMethod,
int? valueLocalIndex = null, OpCode? valueLocalOpCode = null)
{
//var arguments = type.GetGenericArguments();
bool useGenericArguments;
var listType = GetGenericListType(type, out useGenericArguments);//arguments.Length > 0 ? arguments[0] : ObjectType;
var genericListType = GenericListType.MakeGenericType(listType);
var iEnumerableType = !useGenericArguments ? GenericIEnumeratorType.MakeGenericType(listType) : null;
var hasIEnumerable = iEnumerableType != null;
var enumeratorType = hasIEnumerable ? iEnumerableType : GenericListEnumerator.MakeGenericType(listType);
var enumeratorLocal = il.DeclareLocal(enumeratorType);
var moveNextType = hasIEnumerable ? EnumeratorType : enumeratorType;
var entryLocal = il.DeclareLocal(listType);
var startEnumeratorLabel = il.DefineLabel();
var moveNextLabel = il.DefineLabel();
var endEnumeratorLabel = il.DefineLabel();
if (valueLocalIndex != null) il.Emit(valueLocalOpCode.Value, valueLocalIndex.Value);
if (valueLocalIndex == null) il.Emit(OpCodes.Ldarg_2);
if (valueMethod != null) {
il.Emit(OpCodes.Callvirt, valueMethod);
}
if (type.Name == "IList`1") il.Emit(OpCodes.Castclass, genericListType);
il.Emit(OpCodes.Callvirt, (hasIEnumerable ? type : genericListType).GetMethod("GetEnumerator"));
il.Emit(OpCodes.Stloc_S, enumeratorLocal.LocalIndex);
il.BeginExceptionBlock();
il.Emit(OpCodes.Br, startEnumeratorLabel);
il.MarkLabel(moveNextLabel);
il.Emit(hasIEnumerable ? OpCodes.Ldloc : OpCodes.Ldloca_S, enumeratorLocal.LocalIndex);
il.Emit(hasIEnumerable ? OpCodes.Callvirt : OpCodes.Call,
enumeratorLocal.LocalType.GetProperty("Current")
.GetGetMethod());
il.Emit(OpCodes.Stloc, entryLocal.LocalIndex);
if (listType.IsComplexType()) {
if (listType.IsCollectionType())
WriteSerializerClass(typeBuilder, il, listType, 1, null, callerType: listType, valueLocalIndex: entryLocal.LocalIndex,
valueLocalOpCode: OpCodes.Ldloc);
else
WriteSerializerCallClassMethod(typeBuilder, il, listType, OpCodes.Ldloc, entryLocal.LocalIndex, 1, null, needClassHeader: false);
} else {
WriteSerializerBytesToStream(il, listType, OpCodes.Ldloc, entryLocal.LocalIndex, 1, null, isTargetCollection: true);
}
il.MarkLabel(startEnumeratorLabel);
il.Emit(hasIEnumerable ? OpCodes.Ldloc : OpCodes.Ldloca_S, enumeratorLocal.LocalIndex);
il.Emit(hasIEnumerable ? OpCodes.Callvirt : OpCodes.Call, moveNextType.GetMethod("MoveNext", MethodBinding));
il.Emit(OpCodes.Brtrue, moveNextLabel);
il.Emit(OpCodes.Leave, endEnumeratorLabel);
il.BeginFinallyBlock();
il.Emit(hasIEnumerable ? OpCodes.Ldloc : OpCodes.Ldloca_S, enumeratorLocal.LocalIndex);
if (!hasIEnumerable)
il.Emit(OpCodes.Constrained, enumeratorLocal.LocalType);
il.Emit(OpCodes.Callvirt, IDisposableDisposeMethod);
il.EndExceptionBlock();
il.MarkLabel(endEnumeratorLabel);
}示例6: WriteSerializerDictionary
static void WriteSerializerDictionary(TypeBuilder typeBuilder, ILGenerator il, Type type, MethodInfo getValueMethod,
int? valueLocalIndex = null, OpCode? valueLocalOpCode = null)
{
var keyType = typeof(object);
var valueType = typeof(object);
if (type.ContainsGenericParameters) {
var arguments = type.GetGenericArguments();
keyType = arguments[0];
valueType = arguments[1];
} else {
// Custom IDictionary implementation
var interfaces = type.GetInterfaces();
for (int i = 0; i < interfaces.Length; i++) {
var @interface = interfaces[i];
if (@interface.IsGenericType && @interface.GetGenericTypeDefinition() == GenericIDictType) {
var arguments = @interface.GetGenericArguments();
keyType = arguments[0];
valueType = arguments[1];
break;
}
}
}
var keyValuePairType = GenericKeyValuePairType.MakeGenericType(keyType, valueType);
var enumeratorType = GenericDictionaryEnumerator.MakeGenericType(keyType, valueType);
var enumeratorLocal = il.DeclareLocal(enumeratorType);
var entryLocal = il.DeclareLocal(keyValuePairType);
var startEnumeratorLabel = il.DefineLabel();
var moveNextLabel = il.DefineLabel();
var endEnumeratorLabel = il.DefineLabel();
if (valueLocalIndex != null) il.Emit(valueLocalOpCode.Value, valueLocalIndex.Value);
if (getValueMethod != null) {
if (valueLocalIndex == null) il.Emit(OpCodes.Ldarg_2);
il.Emit(OpCodes.Callvirt, getValueMethod);
}
if (type.ContainsGenericParameters)
il.Emit(OpCodes.Callvirt, GenericDictType.MakeGenericType(keyType, valueType).GetMethod("GetEnumerator"));
else
il.Emit(OpCodes.Callvirt, type.GetMethod("GetEnumerator"));
il.Emit(OpCodes.Stloc_S, enumeratorLocal.LocalIndex);
il.BeginExceptionBlock();
il.Emit(OpCodes.Br, startEnumeratorLabel);
il.MarkLabel(moveNextLabel);
il.Emit(OpCodes.Ldloca_S, enumeratorLocal.LocalIndex);
il.Emit(OpCodes.Call,
enumeratorLocal.LocalType.GetProperty("Current")
.GetGetMethod());
il.Emit(OpCodes.Stloc, entryLocal.LocalIndex);
if (keyType.IsComplexType()) {
var keyMethod = keyValuePairType.GetProperty("Key").GetGetMethod();
if (keyType.IsCollectionType())
WriteSerializerClass(typeBuilder, il, keyType, 1, keyMethod, callerType: keyType, valueLocalIndex: entryLocal.LocalIndex,
valueLocalOpCode: OpCodes.Ldloca_S);
else
WriteSerializerCallClassMethod(typeBuilder, il, keyType, OpCodes.Ldloca_S, entryLocal.LocalIndex, 1, keyMethod,
needClassHeader: false);
} else {
var keyMethod = keyValuePairType.GetProperty("Key").GetGetMethod();
WriteSerializerBytesToStream(il, keyType, OpCodes.Ldloca_S, entryLocal.LocalIndex, 1, keyMethod, isTargetCollection: true);
}
if (valueType.IsComplexType()) {
var valueMethod = keyValuePairType.GetProperty("Value").GetGetMethod();
if (valueType.IsCollectionType())
WriteSerializerClass(typeBuilder, il, valueType, 2, valueMethod, callerType: valueType, valueLocalIndex: entryLocal.LocalIndex,
valueLocalOpCode: OpCodes.Ldloca_S);
else
WriteSerializerCallClassMethod(typeBuilder, il, valueType, OpCodes.Ldloca_S, entryLocal.LocalIndex, 2, valueMethod,
needClassHeader: false);
} else {
var valueMethod = keyValuePairType.GetProperty("Value").GetGetMethod();
WriteSerializerBytesToStream(il, valueType, OpCodes.Ldloca_S, entryLocal.LocalIndex, 2, valueMethod, isTargetCollection: true);
}
il.MarkLabel(startEnumeratorLabel);
il.Emit(OpCodes.Ldloca_S, enumeratorLocal.LocalIndex);
il.Emit(OpCodes.Call, enumeratorType.GetMethod("MoveNext", MethodBinding));
il.Emit(OpCodes.Brtrue, moveNextLabel);
il.Emit(OpCodes.Leave, endEnumeratorLabel);
il.BeginFinallyBlock();
il.Emit(OpCodes.Ldloca_S, enumeratorLocal.LocalIndex);
il.Emit(OpCodes.Constrained, enumeratorLocal.LocalType);
il.Emit(OpCodes.Callvirt, IDisposableDisposeMethod);
il.EndExceptionBlock();
il.MarkLabel(endEnumeratorLabel);
}示例7: TranslateToIL
internal override void TranslateToIL(ILGenerator il, Type rtype){
//This assumes that rtype == Void.class.
bool savedInsideProtectedRegion = compilerGlobals.InsideProtectedRegion;
compilerGlobals.InsideProtectedRegion = true;
compilerGlobals.BreakLabelStack.Push(compilerGlobals.BreakLabelStack.Peek(0));
compilerGlobals.ContinueLabelStack.Push(compilerGlobals.ContinueLabelStack.Peek(0));
il.BeginExceptionBlock();
if (this.finally_block != null){
if (this.finallyHasControlFlowOutOfIt)
il.BeginExceptionBlock();
if (this.handler != null)
il.BeginExceptionBlock();
}
this.body.TranslateToIL(il, Typeob.Void);
if (this.tryEndContext != null)
this.tryEndContext.EmitLineInfo(il);
if (this.handler != null){
if (this.type == null){
il.BeginCatchBlock(typeof(Exception));
this.handler.context.EmitLineInfo(il);
this.EmitILToLoadEngine(il);
il.Emit(OpCodes.Call, CompilerGlobals.jScriptExceptionValueMethod);
}else{
Type filterType = this.type.ToType();
if (typeof(Exception).IsAssignableFrom(filterType)){
il.BeginCatchBlock(filterType);
this.handler.context.EmitLineInfo(il);
}
else{
il.BeginExceptFilterBlock();
this.handler.context.EmitLineInfo(il);
this.EmitILToLoadEngine(il);
il.Emit(OpCodes.Call, CompilerGlobals.jScriptExceptionValueMethod);
il.Emit(OpCodes.Isinst, filterType);
il.Emit(OpCodes.Ldnull);
il.Emit(OpCodes.Cgt_Un);
il.BeginCatchBlock(null);
this.EmitILToLoadEngine(il);
il.Emit(OpCodes.Call, CompilerGlobals.jScriptExceptionValueMethod);
Convert.Emit(this, il, Typeob.Object, filterType);
}
}
Object tok = this.field is JSVariableField ? ((JSVariableField)this.field).GetMetaData() : this.field;
if (tok is LocalBuilder)
il.Emit(OpCodes.Stloc, (LocalBuilder)tok);
else if (tok is FieldInfo)
il.Emit(OpCodes.Stsfld, (FieldInfo)tok);
else
Convert.EmitLdarg(il, (short)tok);
if (this.handler_scope != null){
if (!this.handler_scope.isKnownAtCompileTime){ //I.e. eval or nested func
this.EmitILToLoadEngine(il);
il.Emit(OpCodes.Ldstr, this.fieldName);
ConstantWrapper.TranslateToILInt(il, this.handler_scope.scopeId);
il.Emit(OpCodes.Call, typeof(Try).GetMethod("PushHandlerScope"));
Globals.ScopeStack.Push(this.handler_scope);
}
il.BeginScope(); // so that we can emit local scoped information for the handler variable
if (this.context.document.debugOn)
this.handler_scope.EmitLocalInfoForFields(il);
}
this.handler.TranslateToIL(il, Typeob.Void);
if (this.handler_scope != null){
il.EndScope();
if (!this.handler_scope.isKnownAtCompileTime){ //I.e. eval or nested func
this.EmitILToLoadEngine(il);
il.Emit(OpCodes.Call, CompilerGlobals.popScriptObjectMethod);
il.Emit(OpCodes.Pop);
Globals.ScopeStack.Pop();
}
}
il.EndExceptionBlock();
}
if (this.finally_block != null){
bool savedInsideFinally = compilerGlobals.InsideFinally;
int savedFinallyStackTop = compilerGlobals.FinallyStackTop;
compilerGlobals.InsideFinally = true;
compilerGlobals.FinallyStackTop = compilerGlobals.BreakLabelStack.Size();
il.BeginFinallyBlock();
this.finally_block.TranslateToIL(il, Typeob.Void);
il.EndExceptionBlock();
compilerGlobals.InsideFinally = savedInsideFinally;
compilerGlobals.FinallyStackTop = savedFinallyStackTop;
if (this.finallyHasControlFlowOutOfIt){
il.BeginCatchBlock(typeof(BreakOutOfFinally));
il.Emit(OpCodes.Ldfld, typeof(BreakOutOfFinally).GetField("target"));
// don't need to go to 0 in the loop because 0 is the outmost block (i.e. function body)
// and that would generate a JIT assert because the jump is sometimes outside the function
for (int i = compilerGlobals.BreakLabelStack.Size()-1, n = i; i > 0; i--){
il.Emit(OpCodes.Dup);
ConstantWrapper.TranslateToILInt(il, i);
Label lab = il.DefineLabel();
il.Emit(OpCodes.Blt_S, lab);
il.Emit(OpCodes.Pop);
if (savedInsideFinally && i < savedFinallyStackTop)
il.Emit(OpCodes.Rethrow);
else
il.Emit(OpCodes.Leave, (Label)compilerGlobals.BreakLabelStack.Peek(n-i));
il.MarkLabel(lab);
}
//.........这里部分代码省略.........
示例8: TranslateToIL
internal override void TranslateToIL(ILGenerator il, Type rtype){
//This assumes that rtype == Void.class
this.context.EmitLineInfo(il);
Globals.ScopeStack.Push(new WithObject(Globals.ScopeStack.Peek(), new JSObject(null, false)));
bool savedInsideProtectedRegion = compilerGlobals.InsideProtectedRegion;
compilerGlobals.InsideProtectedRegion = true;
Label lab = il.DefineLabel();
compilerGlobals.BreakLabelStack.Push(lab);
compilerGlobals.ContinueLabelStack.Push(lab);
this.obj.TranslateToIL(il, Typeob.Object);
this.EmitILToLoadEngine(il);
il.Emit(OpCodes.Call, CompilerGlobals.jScriptWithMethod); // JScriptWith returns the with object as an 'Object' (used by the debugger EE)
// define a local named 'with()' that the debugger EE will use to bind to the with object
LocalBuilder withObj = null;
if (context.document.debugOn){
il.BeginScope(); // used by the debugger to mark a with block
withObj = il.DeclareLocal(Typeob.Object);
withObj.SetLocalSymInfo("with()");
il.Emit(OpCodes.Stloc, withObj);
}else
il.Emit(OpCodes.Pop);
il.BeginExceptionBlock();
this.block.TranslateToILInitializer(il);
this.block.TranslateToIL(il, Typeob.Void);
il.BeginFinallyBlock();
if (context.document.debugOn){
// null the local used by the debugger EE
il.Emit(OpCodes.Ldnull);
il.Emit(OpCodes.Stloc, withObj);
}
this.EmitILToLoadEngine(il);
il.Emit(OpCodes.Call, CompilerGlobals.popScriptObjectMethod);
il.Emit(OpCodes.Pop);
il.EndExceptionBlock();
if (context.document.debugOn)
il.EndScope(); // used by the debugger to mark a with block
il.MarkLabel(lab);
compilerGlobals.BreakLabelStack.Pop();
compilerGlobals.ContinueLabelStack.Pop();
compilerGlobals.InsideProtectedRegion = savedInsideProtectedRegion;
Globals.ScopeStack.Pop();
}示例9: GenerateMethodLogic
/// <summary>
/// Generates method logic.
/// </summary>
/// <param name="il">The IL generator to use.</param>
/// <param name="method">The method to proxy.</param>
/// <param name="interfaceMethod">
/// The interface definition of the method, if applicable.
/// </param>
protected override void GenerateMethodLogic(
ILGenerator il, MethodInfo method, MethodInfo interfaceMethod)
{
Label jmpEndFinally = il.DefineLabel();
// save target source so we can call Dispose later
PushAdvisedProxy(il);
il.Emit(OpCodes.Ldfld, References.TargetSourceWrapperField);
il.Emit(OpCodes.Stloc, targetSource);
// open try/finally block
il.BeginExceptionBlock();
base.GenerateMethodLogic(il, method, interfaceMethod);
// open finally block
il.BeginFinallyBlock();
// call Dispose on target source
il.Emit(OpCodes.Ldloc, targetSource);
il.Emit(OpCodes.Brfalse, jmpEndFinally);
il.Emit(OpCodes.Ldloc, targetSource);
il.EmitCall(OpCodes.Callvirt, References.DisposeMethod, null);
il.MarkLabel(jmpEndFinally);
// close try/finally block
il.EndExceptionBlock();
}示例10: EmitPackIL
/// <summary>
/// Emits IL code to pack a Map based on IDictionary.
/// </summary>
/// <param name="currentMethod">Current method info.</param>
/// <param name="gen">il buffer/generator</param>
/// <param name="type">Current type</param>
/// <param name="arg_writer">packer object</param>
/// <param name="arg_obj">current object</param>
/// <param name="lookupPackMethod">dictionary to look for methods</param>
public static void EmitPackIL(MethodInfo currentMethod, ILGenerator gen, Type type, Variable arg_writer, Variable arg_obj, Func<Type, MethodInfo> lookupPackMethod)
{
Type keyType = type.GetGenericArguments()[0];
Type valueType = type.GetGenericArguments()[1];
Type keyValuePairType = typeof(KeyValuePair<,>).MakeGenericType(keyType, valueType);
// Preparing Reflection instances
MethodInfo getCount = typeof(ICollection<>).MakeGenericType(keyValuePairType).GetMethod(
"get_Count",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
null,
new Type[]{
},
null
);
MethodInfo writeMapHeader = typeof(MsgPackWriter).GetMethod(
"WriteMapHeader",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
null,
new Type[]{
typeof(Int32)
},
null
);
MethodInfo getEnumerator = typeof(IEnumerable<>).MakeGenericType(keyValuePairType).GetMethod(
"GetEnumerator",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
null,
new Type[]{
},
null
);
MethodInfo getCurrent = typeof(IEnumerator<>).MakeGenericType(keyValuePairType).GetMethod(
"get_Current",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
null,
new Type[]{ },
null
);
MethodInfo getKey = keyValuePairType.GetMethod(
"get_Key",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
null,
new Type[]{ },
null
);
MethodInfo getValue = keyValuePairType.GetMethod(
"get_Value",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
null,
new Type[]{ },
null
);
MethodInfo moveNext = typeof(IEnumerator).GetMethod(
"MoveNext",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
null,
new Type[]{ },
null
);
MethodInfo dispose = typeof(IDisposable).GetMethod(
"Dispose",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic,
null,
new Type[]{ },
null
);
// Preparing locals
LocalBuilder keyValuepair = gen.DeclareLocal(keyValuePairType);
LocalBuilder enumerator = gen.DeclareLocal(typeof(System.Collections.Generic.IEnumerator<>).MakeGenericType(keyValuePairType));
Variable localValue = Variable.CreateLocal(gen.DeclareLocal(valueType));
// Preparing labels
Label getNext = gen.DefineLabel();
Label work = gen.DefineLabel();
Label end = gen.DefineLabel();
Label endFinally = gen.DefineLabel();
// Writing body
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Ldarg_1);
gen.Emit(OpCodes.Callvirt, getCount);
gen.Emit(OpCodes.Callvirt, writeMapHeader);
gen.Emit(OpCodes.Ldarg_1);
gen.Emit(OpCodes.Callvirt, getEnumerator);
gen.Emit(OpCodes.Stloc_1);
gen.BeginExceptionBlock();
gen.Emit(OpCodes.Br_S, getNext);
gen.MarkLabel(work);
//.........这里部分代码省略.........
示例11: EmitILForEachView
static void EmitILForEachView(Type viewType, ILGenerator il, Action forEachAction)
{
// Declare the locals we need
var viewLocal = il.DeclareLocal(viewType);
var enumeratorLocal = il.DeclareLocal(typeof(IEnumerable<>).MakeGenericType(viewType));
var enumeratorContinueLocal = il.DeclareLocal(typeof(bool));
// Load the view instance on to the evaluation stack
il.Emit(OpCodes.Ldarg, viewLocal.LocalIndex);
// Call CompositeView<IViewType>.get_Views
var getViews = typeof(CompositeView<>)
.MakeGenericType(viewType)
.GetProperties(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.NonPublic)
.First(pi => pi.Name == "Views" &&
pi.PropertyType == typeof(IEnumerable<>).MakeGenericType(viewType))
.GetGetMethod(true);
il.EmitCall(OpCodes.Call, getViews, null);
// Call IEnumerable<>.GetEnumerator
var getViewsEnumerator = typeof(IEnumerable<>)
.MakeGenericType(viewType)
.GetMethod("GetEnumerator",
BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public);
il.EmitCall(OpCodes.Callvirt, getViewsEnumerator, null);
// Push the enumerator from the evaluation stack to the local variable
il.Emit(OpCodes.Stloc, enumeratorLocal.LocalIndex);
// Start a new exception block so that we can reliably dispose
// the enumerator
il.BeginExceptionBlock();
// Define some of the labels we need
var moveNextLabel = il.DefineLabel();
var continueLabel = il.DefineLabel();
var endFinallyLabel = il.DefineLabel();
var exitLabel = il.DefineLabel();
// Skip straight ahead to moveNextLabel
il.Emit(OpCodes.Br_S, moveNextLabel);
// Mark this point with with continueLabel
il.MarkLabel(continueLabel);
// Push the enumerator on to the evaluation stack
il.Emit(OpCodes.Ldloc, enumeratorLocal);
// Call IEnumerator<>.get_Current on the enumerator
var getCurrent =
typeof(IEnumerator<>)
.MakeGenericType(viewType)
.GetProperty("Current")
.GetGetMethod();
il.EmitCall(OpCodes.Callvirt, getCurrent, null);
// Store the output from IEnumerator<>.get_Current into a local
il.Emit(OpCodes.Stloc, viewLocal);
// Push the view local back onto the evaluation stack
il.Emit(OpCodes.Ldloc, viewLocal);
// Push the incoming set value onto the evaluation stack
il.Emit(OpCodes.Ldarg, 1);
// Let the calling method inject some IL here
forEachAction();
// Mark this point with the moveNextLabel
il.MarkLabel(moveNextLabel);
// Push the enumerator local back onto the evaluation stack
il.Emit(OpCodes.Ldloc, enumeratorLocal);
// Call IEnumerator.MoveNext on the enumerator
var moveNext =
typeof(IEnumerator)
.GetMethod("MoveNext");
il.EmitCall(OpCodes.Callvirt, moveNext, null);
// Push the result of MoveNext from the evaluation stack to the local variable
il.Emit(OpCodes.Stloc, enumeratorContinueLocal.LocalIndex);
// Pull the result of MoveNext from the evaluation stack back onto the evaluation stack
il.Emit(OpCodes.Ldloc, enumeratorContinueLocal.LocalIndex);
// If MoveNext returned true, jump back to the continue label
il.Emit(OpCodes.Brtrue_S, continueLabel);
// Jump out of the try block
il.Emit(OpCodes.Leave_S, exitLabel);
// Start the finally block
il.BeginFinallyBlock();
// Push the enumerator onto the evaluation stack, then compare against null
il.Emit(OpCodes.Ldloc, enumeratorLocal);
il.Emit(OpCodes.Ldnull);
il.Emit(OpCodes.Ceq);
//.........这里部分代码省略.........
示例12: Generate
/// <summary>
/// Generate MSIL code to emit an instruction marker at the current
/// sequence in the output.
/// </summary>
/// <param name="il">ILGenerator object</param>
public override void Generate(ILGenerator il)
{
if (il == null) {
throw new ArgumentNullException("il");
}
if (Deleted) {
return;
}
switch (TryCatchType) {
case EmitExceptionHandlerType.Try:
il.BeginExceptionBlock();
break;
case EmitExceptionHandlerType.Catch: {
Type runtimeException = typeof(JComLib.JComRuntimeException);
LocalBuilder tmp2 = il.DeclareLocal(runtimeException);
il.BeginCatchBlock(runtimeException);
il.Emit(OpCodes.Stloc_S, tmp2);
il.Emit(OpCodes.Ldstr, "JCom Runtime Error: {0}");
il.Emit(OpCodes.Ldloc_S, tmp2);
il.EmitCall(OpCodes.Call, runtimeException.GetMethod("get_Message"), null);
MethodInfo meth = typeof(Console).GetMethod("WriteLine", new [] {typeof(string), typeof(object)});
il.EmitCall(OpCodes.Call, meth, null);
il.EndExceptionBlock();
il.Emit(OpCodes.Ret);
break;
}
}
}示例13: Weave
public void Weave(ILGenerator ilGenerator)
{
ilGenerator.BeginExceptionBlock();
}示例14: TranslateToIL
internal override void TranslateToIL(ILGenerator il, Type rtype)
{
base.context.EmitLineInfo(il);
base.Globals.ScopeStack.Push(new WithObject(base.Globals.ScopeStack.Peek(), new JSObject(null, false)));
bool insideProtectedRegion = base.compilerGlobals.InsideProtectedRegion;
base.compilerGlobals.InsideProtectedRegion = true;
Label item = il.DefineLabel();
base.compilerGlobals.BreakLabelStack.Push(item);
base.compilerGlobals.ContinueLabelStack.Push(item);
this.obj.TranslateToIL(il, Typeob.Object);
base.EmitILToLoadEngine(il);
il.Emit(OpCodes.Call, CompilerGlobals.jScriptWithMethod);
LocalBuilder local = null;
if (base.context.document.debugOn)
{
il.BeginScope();
local = il.DeclareLocal(Typeob.Object);
local.SetLocalSymInfo("with()");
il.Emit(OpCodes.Stloc, local);
}
else
{
il.Emit(OpCodes.Pop);
}
il.BeginExceptionBlock();
this.block.TranslateToILInitializer(il);
this.block.TranslateToIL(il, Typeob.Void);
il.BeginFinallyBlock();
if (base.context.document.debugOn)
{
il.Emit(OpCodes.Ldnull);
il.Emit(OpCodes.Stloc, local);
}
base.EmitILToLoadEngine(il);
il.Emit(OpCodes.Call, CompilerGlobals.popScriptObjectMethod);
il.Emit(OpCodes.Pop);
il.EndExceptionBlock();
if (base.context.document.debugOn)
{
il.EndScope();
}
il.MarkLabel(item);
base.compilerGlobals.BreakLabelStack.Pop();
base.compilerGlobals.ContinueLabelStack.Pop();
base.compilerGlobals.InsideProtectedRegion = insideProtectedRegion;
base.Globals.ScopeStack.Pop();
}示例15: Emit
public override void Emit(IMemberEmitter member, ILGenerator gen)
{
gen.BeginExceptionBlock();
}