private static void IsInst(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
var obj = Pop(stack);
stack.Push(new IsTypeExpression(obj, (TypeReference)instruction.Operand, instruction));
}
private static void LdLen(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
var array = Pop(stack);
stack.Push(new ArrayLengthExpression(array, instruction));
}
private static void Return(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
var value = PopOrDefault(stack);
node.AddStatement(new ReturnStatement(value, instruction));
}
private static void StArg(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
var value = Pop(stack);
node.AddStatement(new StoreParameterStatement((ParameterReference)instruction.Operand, value, instruction));
}
private static void Dup(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
// Store the current value in a temporary, then load it into the stack twice
var value = Pop(stack);
var temp = variables.CreateTemporary();
node.AddStatement(new StoreTemporaryStatement(temp, value, instruction));
stack.Push(new TemporaryExpression(temp, instruction));
stack.Push(new TemporaryExpression(temp, instruction));
}
private static void CastClass(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
var value = Pop(stack);
stack.Push(new CastExpression(value, (TypeReference)instruction.Operand, instruction));
}
private static void LdToken(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
stack.Push(new TokenExpression((MemberReference)instruction.Operand, instruction));
}
private static void InitObj(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
var addr = Pop(stack);
var value = new InitObjExpression((TypeReference)instruction.Operand, instruction);
node.AddStatement(new StoreIndirectStatement(addr, value, MetadataType.Object, instruction));
}
private static void LdNull(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
stack.Push(new ConstantExpression(null, MetadataType.Object, instruction));
}
private static void LdObj(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
var addr = Pop(stack);
stack.Push(new DereferenceExpression(addr, (TypeReference)instruction.Operand, instruction));
}
private static void LocAlloc(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
var size = Pop(stack);
stack.Push(new LocallocExpression(size, instruction));
}
private static void ArgList(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
stack.Push(new ArglistExpression(instruction));
}
private static void Pop(MethodVariables variables, Stack <Expression> stack, Instruction instruction, SyntaxGraphNode node)
{
node.AddStatement(new DiscardStatement(Pop(stack), instruction));
}
internal void AddLink(Expression expression, SyntaxGraphNode target)
{
_outboundLinks.Add(new SyntaxGraphLink(expression, target));
}
public SyntaxGraphLink(Expression expression, SyntaxGraphNode target)
{
Expression = expression;
Target = target;
}