public AssignmentExpression(VariableExpression target, Expression expression)
: base(AstNodeType.AssignmentExpression, new AstNode[]{target, expression})
{
}
private static Expression Expand(VariableExpression vex, IVault vault, IVault repository, List<Expression> stack, Dictionary<String, IBranch> nodes)
{
var @ref = vault.GetBranch(vex.Name.FromElfIdentifier());
if (@ref == null)
{
throw new ReferencedBranchDoesNotExistException(vex.Name);
}
if (@ref.IsFov())
{
if (@ref.GetOrCreateValue("declarationType", "source").ContentString == "source")
{
String val;
if (repository == null)
{
val = @ref.GetValue("valueForTesting").ContentString;
}
else
{
var external = @ref.GetValue("repositoryValue").ContentString;
val = repository.GetValue(external).ContentString;
}
return new LiteralExpression(String.Format("[[{0}]]{1}", @ref.GetValue("type").ContentString, val));
}
else
{
return ExpandRhs(@ref, repository, stack, nodes);
}
}
else
{
var varName = @ref.VPath.ToElfIdentifier();
nodes[varName] = @ref;
return new VariableExpression(varName);
}
}
private IEnumerable<ElfVmInstruction> CompileVariable(VariableExpression ve)
{
yield return new PushRef(ve.Name);
}