public override LocalVariableDefinition[] GetLocals()
{
LocalVariableDefinition[] locals = _methodIL.GetLocals();
LocalVariableDefinition[] clone = null;
for (int i = 0; i < locals.Length; i++)
{
TypeDesc uninst = locals[i].Type;
TypeDesc inst = uninst.InstantiateSignature(_typeInstantiation, _methodInstantiation);
if (uninst != inst)
{
if (clone == null)
{
clone = new LocalVariableDefinition[locals.Length];
for (int j = 0; j < clone.Length; j++)
{
clone[j] = locals[j];
}
}
clone[i] = new LocalVariableDefinition(inst, locals[i].IsPinned);
}
}
return((clone == null) ? locals : clone);
}
public LocalVariableDefinition[] ParseLocalsSignature()
{
if (_reader.ReadSignatureHeader().Kind != SignatureKind.LocalVariables)
{
throw new BadImageFormatException();
}
int count = _reader.ReadCompressedInteger();
LocalVariableDefinition[] locals;
if (count > 0)
{
locals = new LocalVariableDefinition[count];
for (int i = 0; i < count; i++)
{
bool isPinned = false;
SignatureTypeCode typeCode = ParseTypeCode();
if (typeCode == SignatureTypeCode.Pinned)
{
isPinned = true;
typeCode = ParseTypeCode();
}
locals[i] = new LocalVariableDefinition(ParseType(typeCode), isPinned);
}
}
else
{
locals = Array.Empty <LocalVariableDefinition>();
}
return(locals);
}
public LocalVariableDefinition[] ParseLocalsSignature()
{
if ((_reader.ReadByte() & 0xF) != 7) // IMAGE_CEE_CS_CALLCONV_LOCAL_SIG - add it to SignatureCallingConvention?
{
throw new BadImageFormatException();
}
int count = _reader.ReadCompressedInteger();
LocalVariableDefinition[] locals;
if (count > 0)
{
locals = new LocalVariableDefinition[count];
for (int i = 0; i < count; i++)
{
bool isPinned = false;
SignatureTypeCode typeCode = ParseTypeCode();
if (typeCode == SignatureTypeCode.Pinned)
{
isPinned = true;
typeCode = ParseTypeCode();
}
locals[i] = new LocalVariableDefinition(ParseType(typeCode), isPinned);
}
}
else
{
locals = Array.Empty <LocalVariableDefinition>();
}
return(locals);
}
private void GetLocalSizeAndOffsetAtIndex(int index, out int size, out int offset)
{
LocalVariableDefinition local = _locals[index];
size = local.Type.GetElementSize().AsInt;
offset = 0;
for (int i = 0; i < index; i++)
{
offset += _locals[i].Type.GetElementSize().AsInt;
}
}
public void EmitVariableDeclaration(VariableDeclarationSyntax node)
{
// lookup variable kind
var local = new LocalVariableDefinition();
local.Name = (string)node.Identifier.Value;
local.Index = CurrentFunction.Definition.Body.Locals.Count;
CurrentFunction.Definition.Body.Locals.Add(local);
if (node.Initializer != null)
{
EmitExpression(node.Initializer);
Generator.Emit(OpCodes.Stloc, local.Index);
}
}
public ILImporter(LLVMBuilderRef builder, WebAssemblyCodegenCompilation compilation, LLVMModuleRef module, LLVMValueRef helperFunc, MethodDesc delegateCtor)
{
this._builder = builder;
this._compilation = compilation;
this.Module = module;
this._currentFunclet = helperFunc;
_locals = new LocalVariableDefinition[0];
if (delegateCtor == null)
{
_signature = new MethodSignature(MethodSignatureFlags.None, 0, GetWellKnownType(WellKnownType.Void),
new TypeDesc[0]);
}
else
{
_signature = delegateCtor.Signature;
_argSlots = new LLVMValueRef[_signature.Length];
int signatureIndex = 2; // past hidden param
int thisOffset = 0;
if (!_signature.IsStatic)
{
thisOffset = 1;
}
for (int i = 0; i < _signature.Length; i++)
{
if (CanStoreTypeOnStack(_signature[i]))
{
LLVMValueRef storageAddr;
LLVMValueRef argValue = helperFunc.GetParam((uint)signatureIndex);
// The caller will always pass the argument on the stack. If this function doesn't have
// EH, we can put it in an alloca for efficiency and better debugging. Otherwise,
// copy it to the shadow stack so funclets can find it
int argOffset = i + thisOffset;
string argName = $"arg{argOffset}_";
storageAddr = _builder.BuildAlloca(GetLLVMTypeForTypeDesc(_signature[i]), argName);
_argSlots[i] = storageAddr;
_builder.BuildStore(argValue, storageAddr);
signatureIndex++;
}
}
}
_thisType = GetWellKnownType(WellKnownType.Void);
_pointerSize = compilation.NodeFactory.Target.PointerSize;
_exceptionRegions = new ExceptionRegion[0];
}
