internal override ScopeBounds GetIteratorScopes(ArrayBuilder <Cci.LocalScope> scopesWithIteratorLocals, bool edgeInclusive)
{
uint begin = uint.MaxValue;
uint end = 0;
// It may seem overkill to scan all blocks,
// but blocks may be reordered so we cannot be sure which ones are first/last.
if (Blocks != null)
{
for (int i = 0; i < Blocks.Count; i++)
{
var block = Blocks[i];
if (block.Reachability != Reachability.NotReachable)
{
begin = Math.Min(begin, (uint)block.Start);
end = Math.Max(end, (uint)(block.Start + block.TotalSize));
}
}
}
// if there are nested scopes, dump them too
// also may need to adjust current scope bounds.
if (NestedScopes != null)
{
ScopeBounds nestedBounds = GetIteratorScopes(scopesWithIteratorLocals, NestedScopes, edgeInclusive);
begin = Math.Min(begin, nestedBounds.Begin);
end = Math.Max(end, nestedBounds.End);
}
// we are not interested in scopes with no variables or no code in them.
if (this.IteratorVariables != null && end > begin)
{
uint endAdjusted = edgeInclusive ? end - 1 : end;
var newScope = new Cci.LocalScope(
begin,
endAdjusted - begin,
ImmutableArray <Cci.ILocalDefinition> .Empty,
ImmutableArray <Cci.ILocalDefinition> .Empty);
foreach (var iv in this.IteratorVariables)
{
while (scopesWithIteratorLocals.Count <= iv)
{
scopesWithIteratorLocals.Add(default(Cci.LocalScope));
}
scopesWithIteratorLocals[iv] = newScope;
}
}
return(new ScopeBounds(begin, end));
}
internal override ScopeBounds GetLocalScopes(ArrayBuilder <Cci.LocalScope> result, bool edgeInclusive)
{
uint begin = uint.MaxValue;
uint end = 0;
// It may seem overkill to scan all blocks,
// but blocks may be reordered so we cannot be sure which ones are first/last.
if (Blocks != null)
{
for (int i = 0; i < Blocks.Count; i++)
{
var block = Blocks[i];
if (block.Reachability != Reachability.NotReachable)
{
begin = Math.Min(begin, (uint)block.Start);
end = Math.Max(end, (uint)(block.Start + block.TotalSize));
}
}
}
// if there are nested scopes, dump them too
// also may need to adjust current scope bounds.
if (_nestedScopes != null)
{
ScopeBounds nestedBounds = GetLocalScopes(result, _nestedScopes, edgeInclusive);
begin = Math.Min(begin, nestedBounds.Begin);
end = Math.Max(end, nestedBounds.End);
}
// we are not interested in scopes with no variables or no code in them.
if ((_localVariables != null || _localConstants != null) && end > begin)
{
uint endAdjusted = edgeInclusive ? end - 1 : end;
var newScope = new Cci.LocalScope(
begin,
endAdjusted - begin,
_localConstants.AsImmutableOrEmpty <Cci.ILocalDefinition>(),
_localVariables.AsImmutableOrEmpty <Cci.ILocalDefinition>());
result.Add(newScope);
}
return(new ScopeBounds(begin, end));
}
private static void SerializeTupleElementNames(ArrayBuilder <LocalAndScope> locals, BlobBuilder cmw)
{
cmw.WriteInt32(locals.Count);
foreach (LocalAndScope localAndScope in locals)
{
ILocalDefinition local = localAndScope.Local;
LocalScope scope = localAndScope.Scope;
System.Collections.Immutable.ImmutableArray <TypedConstant> tupleElementNames = local.TupleElementNames;
cmw.WriteInt32(tupleElementNames.Length);
foreach (TypedConstant tupleElementName in tupleElementNames)
{
WriteUtf8String(cmw, (string)tupleElementName.Value ?? string.Empty);
}
cmw.WriteInt32(local.SlotIndex);
cmw.WriteInt32(scope.StartOffset);
cmw.WriteInt32(scope.EndOffset);
WriteUtf8String(cmw, local.Name);
}
}
private void DefineScopeLocals(LocalScope currentScope, uint localSignatureToken)
{
foreach (ILocalDefinition scopeConstant in currentScope.Constants)
{
uint token = _metadataWriter.SerializeLocalConstantSignature(scopeConstant);
if (!_metadataWriter.IsLocalNameTooLong(scopeConstant))
{
DefineLocalConstant(scopeConstant.Name, scopeConstant.CompileTimeValue.Value, _metadataWriter.GetConstantTypeCode(scopeConstant), token);
}
}
foreach (ILocalDefinition scopeLocal in currentScope.Variables)
{
if (!_metadataWriter.IsLocalNameTooLong(scopeLocal))
{
Debug.Assert(scopeLocal.SlotIndex >= 0);
DefineLocalVariable((uint)scopeLocal.SlotIndex, scopeLocal.Name, scopeLocal.PdbAttributes, localSignatureToken);
}
}
}
private void DefineLocalScopes(ImmutableArray <LocalScope> scopes, uint localSignatureToken)
{
// VB scope ranges are end-inclusive
bool endInclusive = this.Module.GenerateVisualBasicStylePdb;
// The order of OpenScope and CloseScope calls must follow the scope nesting.
var scopeStack = ArrayBuilder <LocalScope> .GetInstance();
for (int i = 1; i < scopes.Length; i++)
{
var currentScope = scopes[i];
// Close any scopes that have finished.
while (scopeStack.Count > 0)
{
LocalScope topScope = scopeStack.Last();
if (currentScope.StartOffset < topScope.StartOffset + topScope.Length)
{
break;
}
scopeStack.RemoveLast();
CloseScope(endInclusive ? topScope.EndOffset - 1 : topScope.EndOffset);
}
// Open this scope.
scopeStack.Add(currentScope);
OpenScope(currentScope.StartOffset);
this.DefineScopeLocals(currentScope, localSignatureToken);
}
// Close remaining scopes.
for (int i = scopeStack.Count - 1; i >= 0; i--)
{
LocalScope scope = scopeStack[i];
CloseScope(endInclusive ? scope.EndOffset - 1 : scope.EndOffset);
}
scopeStack.Free();
}
private void DefineLocalScopes(ImmutableArray <LocalScope> scopes, uint localSignatureToken)
{
// The order of OpenScope and CloseScope calls must follow the scope nesting.
var scopeStack = ArrayBuilder <LocalScope> .GetInstance();
for (int i = 1; i < scopes.Length; i++)
{
var currentScope = scopes[i];
// Close any scopes that have finished.
while (scopeStack.Count > 0)
{
LocalScope topScope = scopeStack.Last();
if (currentScope.Offset < topScope.Offset + topScope.Length)
{
break;
}
scopeStack.RemoveLast();
CloseScope(topScope.Offset + topScope.Length);
}
// Open this scope.
scopeStack.Add(currentScope);
OpenScope(currentScope.Offset);
this.DefineScopeLocals(currentScope, localSignatureToken);
}
// Close remaining scopes.
for (int i = scopeStack.Count - 1; i >= 0; i--)
{
LocalScope scope = scopeStack[i];
CloseScope(scope.Offset + scope.Length);
}
scopeStack.Free();
}
private void DefineScopeLocals(LocalScope currentScope, uint localSignatureToken)
{
foreach (ILocalDefinition scopeConstant in currentScope.Constants)
{
int token = _metadataWriter.SerializeLocalConstantStandAloneSignature(scopeConstant);
if (!_metadataWriter.IsLocalNameTooLong(scopeConstant))
{
DefineLocalConstant(scopeConstant.Name, scopeConstant.CompileTimeValue.Value, _metadataWriter.GetConstantTypeCode(scopeConstant), (uint)token);
}
}
foreach (ILocalDefinition scopeLocal in currentScope.Variables)
{
if (!_metadataWriter.IsLocalNameTooLong(scopeLocal))
{
Debug.Assert(scopeLocal.SlotIndex >= 0);
DefineLocalVariable((uint)scopeLocal.SlotIndex, scopeLocal.Name, scopeLocal.PdbAttributes, localSignatureToken);
}
}
}
internal LocalAndScope(ILocalDefinition local, LocalScope scope)
{
Local = local;
Scope = scope;
}
private void DefineScopeLocals(LocalScope currentScope, uint localSignatureToken)
{
foreach (ILocalDefinition scopeConstant in currentScope.Constants)
{
uint token = peWriter.SerializeLocalConstantSignature(scopeConstant);
if (!peWriter.IsLocalNameTooLong(scopeConstant))
{
DefineLocalConstant(scopeConstant.Name, scopeConstant.CompileTimeValue.Value, peWriter.GetConstantTypeCode(scopeConstant), token);
}
}
foreach (ILocalDefinition scopeLocal in currentScope.Variables)
{
if (!peWriter.IsLocalNameTooLong(scopeLocal))
{
Debug.Assert(scopeLocal.SlotIndex >= 0);
DefineLocalVariable((uint)scopeLocal.SlotIndex, scopeLocal.Name, scopeLocal.IsCompilerGenerated, localSignatureToken);
}
}
}