internal LocalScope(MetadataReader reader, LocalScopeHandle handle)
{
Debug.Assert(reader != null);
Debug.Assert(!handle.IsNil);
_reader = reader;
_rowId = handle.RowId;
}
internal ChildScopeData(SymMethod symMethod, ScopeData parent, LocalScopeHandle handle)
: base(symMethod)
{
Debug.Assert(parent != null);
Debug.Assert(!handle.IsNil);
_handle = handle;
_parent = parent;
}
internal void GetLocalConstantRange(LocalScopeHandle scope, out int firstConstantRowId, out int lastConstantRowId)
{
int scopeRowId = scope.RowId;
firstConstantRowId = this.LocalScopeTable.GetConstantStart(scopeRowId);
if (firstConstantRowId == 0)
{
firstConstantRowId = 1;
lastConstantRowId = 0;
}
else if (scopeRowId == this.LocalScopeTable.NumberOfRows)
{
lastConstantRowId = this.LocalConstantTable.NumberOfRows;
}
else
{
lastConstantRowId = this.LocalScopeTable.GetConstantStart(scopeRowId + 1) - 1;
}
}
public LocalScope GetLocalScope(LocalScopeHandle handle)
{
return new LocalScope(this, handle);
}
internal ImportScopeHandle GetImportScope(LocalScopeHandle handle)
{
int rowOffset = (handle.RowId - 1) * RowSize;
return ImportScopeHandle.FromRowId(Block.PeekReference(rowOffset + _importScopeOffset, _isImportScopeRefSmall));
}
//
// Gather the local details in a scope and then recurse to child scopes
//
private void ProbeScopeForLocals(List<ILLocalVariable> variables, LocalScopeHandle localScopeHandle)
{
var localScope = _reader.GetLocalScope(localScopeHandle);
foreach (var localVariableHandle in localScope.GetLocalVariables())
{
var localVariable = _reader.GetLocalVariable(localVariableHandle);
var name = _reader.GetString(localVariable.Name);
bool compilerGenerated = (localVariable.Attributes & LocalVariableAttributes.DebuggerHidden) != 0;
variables.Add(new ILLocalVariable(localVariable.Index, name, compilerGenerated));
}
var children = localScope.GetChildren();
while (children.MoveNext())
{
ProbeScopeForLocals(variables, children.Current);
}
}
public static LocalScope GetLocalScope(this LocalScopeHandle handle, MetadataReader reader) => reader.GetLocalScope(handle);
public LocalScopeEntry(PEFile module, MetadataReader metadata, bool isEmbedded, LocalScopeHandle handle)
{
this.offset = isEmbedded ? null : (int?)metadata.GetTableMetadataOffset(TableIndex.LocalScope)
+ metadata.GetTableRowSize(TableIndex.LocalScope) * (MetadataTokens.GetRowNumber(handle) - 1);
this.module = module;
this.metadata = metadata;
this.handle = handle;
this.localScope = metadata.GetLocalScope(handle);
}
