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Imported Upstream version 5.8.0.88
Former-commit-id: 4b7216ffda08448e562271ce733688e761120fc5
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
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7d05485754
commit
6123a772ed
217
external/cecil/Mono.Cecil.Cil/CodeReader.cs
vendored
217
external/cecil/Mono.Cecil.Cil/CodeReader.cs
vendored
@@ -45,7 +45,7 @@ namespace Mono.Cecil.Cil {
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return position;
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}
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void MoveBackTo (int position)
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public void MoveBackTo (int position)
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{
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this.reader.context = null;
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this.Position = position;
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@@ -62,6 +62,30 @@ namespace Mono.Cecil.Cil {
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return this.body;
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}
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public int ReadCodeSize (MethodDefinition method)
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{
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var position = MoveTo (method);
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var code_size = ReadCodeSize ();
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MoveBackTo (position);
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return code_size;
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}
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int ReadCodeSize ()
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{
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var flags = ReadByte ();
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switch (flags & 0x3) {
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case 0x2: // tiny
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return flags >> 2;
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case 0x3: // fat
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Advance (-1 + 2 + 2); // go back, 2 bytes flags, 2 bytes stack size
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return (int) ReadUInt32 ();
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default:
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throw new InvalidOperationException ();
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}
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}
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void ReadMethodBody ()
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{
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var flags = ReadByte ();
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@@ -88,99 +112,6 @@ namespace Mono.Cecil.Cil {
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ReadDebugInfo ();
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}
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void ReadDebugInfo ()
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{
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if (method.debug_info.sequence_points != null)
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ReadSequencePoints ();
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if (method.debug_info.scope != null)
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ReadScope (method.debug_info.scope);
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if (method.custom_infos != null)
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ReadCustomDebugInformations (method);
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}
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void ReadCustomDebugInformations (MethodDefinition method)
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{
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var custom_infos = method.custom_infos;
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for (int i = 0; i < custom_infos.Count; i++) {
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var state_machine_scope = custom_infos [i] as StateMachineScopeDebugInformation;
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if (state_machine_scope != null)
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ReadStateMachineScope (state_machine_scope);
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var async_method = custom_infos [i] as AsyncMethodBodyDebugInformation;
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if (async_method != null)
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ReadAsyncMethodBody (async_method);
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}
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}
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void ReadAsyncMethodBody (AsyncMethodBodyDebugInformation async_method)
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{
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if (async_method.catch_handler.Offset > -1)
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async_method.catch_handler = new InstructionOffset (GetInstruction (async_method.catch_handler.Offset));
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if (!async_method.yields.IsNullOrEmpty ())
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for (int i = 0; i < async_method.yields.Count; i++)
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async_method.yields [i] = new InstructionOffset (GetInstruction (async_method.yields [i].Offset));
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if (!async_method.resumes.IsNullOrEmpty ())
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for (int i = 0; i < async_method.resumes.Count; i++)
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async_method.resumes [i] = new InstructionOffset (GetInstruction (async_method.resumes [i].Offset));
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}
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void ReadStateMachineScope (StateMachineScopeDebugInformation state_machine_scope)
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{
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state_machine_scope.start = new InstructionOffset (GetInstruction (state_machine_scope.start.Offset));
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var end_instruction = GetInstruction (state_machine_scope.end.Offset);
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state_machine_scope.end = end_instruction == null
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? new InstructionOffset ()
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: new InstructionOffset (end_instruction);
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}
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void ReadSequencePoints ()
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{
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var symbol = method.debug_info;
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for (int i = 0; i < symbol.sequence_points.Count; i++) {
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var sequence_point = symbol.sequence_points [i];
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var instruction = GetInstruction (sequence_point.Offset);
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if (instruction != null)
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sequence_point.offset = new InstructionOffset (instruction);
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}
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}
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void ReadScopes (Collection<ScopeDebugInformation> scopes)
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{
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for (int i = 0; i < scopes.Count; i++)
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ReadScope (scopes [i]);
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}
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void ReadScope (ScopeDebugInformation scope)
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{
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var start_instruction = GetInstruction (scope.Start.Offset);
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if (start_instruction != null)
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scope.Start = new InstructionOffset (start_instruction);
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var end_instruction = GetInstruction (scope.End.Offset);
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scope.End = end_instruction != null
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? new InstructionOffset (end_instruction)
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: new InstructionOffset ();
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if (!scope.variables.IsNullOrEmpty ()) {
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for (int i = 0; i < scope.variables.Count; i++) {
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var variable_info = scope.variables [i];
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var variable = GetVariable (variable_info.Index);
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if (variable != null)
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variable_info.index = new VariableIndex (variable);
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}
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}
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if (!scope.scopes.IsNullOrEmpty ())
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ReadScopes (scope.scopes);
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}
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void ReadFatMethod ()
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{
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var flags = ReadUInt16 ();
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@@ -442,6 +373,104 @@ namespace Mono.Cecil.Cil {
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return new MetadataToken (ReadUInt32 ());
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}
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void ReadDebugInfo ()
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{
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if (method.debug_info.sequence_points != null)
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ReadSequencePoints ();
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if (method.debug_info.scope != null)
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ReadScope (method.debug_info.scope);
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if (method.custom_infos != null)
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ReadCustomDebugInformations (method);
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}
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void ReadCustomDebugInformations (MethodDefinition method)
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{
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var custom_infos = method.custom_infos;
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for (int i = 0; i < custom_infos.Count; i++) {
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var state_machine_scope = custom_infos [i] as StateMachineScopeDebugInformation;
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if (state_machine_scope != null)
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ReadStateMachineScope (state_machine_scope);
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var async_method = custom_infos [i] as AsyncMethodBodyDebugInformation;
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if (async_method != null)
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ReadAsyncMethodBody (async_method);
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}
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}
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void ReadAsyncMethodBody (AsyncMethodBodyDebugInformation async_method)
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{
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if (async_method.catch_handler.Offset > -1)
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async_method.catch_handler = new InstructionOffset (GetInstruction (async_method.catch_handler.Offset));
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if (!async_method.yields.IsNullOrEmpty ())
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for (int i = 0; i < async_method.yields.Count; i++)
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async_method.yields [i] = new InstructionOffset (GetInstruction (async_method.yields [i].Offset));
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if (!async_method.resumes.IsNullOrEmpty ())
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for (int i = 0; i < async_method.resumes.Count; i++)
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async_method.resumes [i] = new InstructionOffset (GetInstruction (async_method.resumes [i].Offset));
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}
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void ReadStateMachineScope (StateMachineScopeDebugInformation state_machine_scope)
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{
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if (state_machine_scope.scopes.IsNullOrEmpty ())
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return;
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foreach (var scope in state_machine_scope.scopes) {
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scope.start = new InstructionOffset (GetInstruction (scope.start.Offset));
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var end_instruction = GetInstruction (scope.end.Offset);
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scope.end = end_instruction == null
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? new InstructionOffset ()
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: new InstructionOffset (end_instruction);
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}
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}
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void ReadSequencePoints ()
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{
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var symbol = method.debug_info;
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for (int i = 0; i < symbol.sequence_points.Count; i++) {
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var sequence_point = symbol.sequence_points [i];
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var instruction = GetInstruction (sequence_point.Offset);
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if (instruction != null)
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sequence_point.offset = new InstructionOffset (instruction);
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}
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}
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void ReadScopes (Collection<ScopeDebugInformation> scopes)
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{
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for (int i = 0; i < scopes.Count; i++)
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ReadScope (scopes [i]);
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}
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void ReadScope (ScopeDebugInformation scope)
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{
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var start_instruction = GetInstruction (scope.Start.Offset);
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if (start_instruction != null)
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scope.Start = new InstructionOffset (start_instruction);
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var end_instruction = GetInstruction (scope.End.Offset);
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scope.End = end_instruction != null
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? new InstructionOffset (end_instruction)
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: new InstructionOffset ();
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if (!scope.variables.IsNullOrEmpty ()) {
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for (int i = 0; i < scope.variables.Count; i++) {
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var variable_info = scope.variables [i];
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var variable = GetVariable (variable_info.Index);
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if (variable != null)
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variable_info.index = new VariableIndex (variable);
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}
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}
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if (!scope.scopes.IsNullOrEmpty ())
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ReadScopes (scope.scopes);
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}
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#if !READ_ONLY
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public ByteBuffer PatchRawMethodBody (MethodDefinition method, CodeWriter writer, out int code_size, out MetadataToken local_var_token)
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