private SyntaxNode Bind(FunctionNode node, Dictionary <string, string> env)
{
Dictionary <string, string> localEnvironment = new Dictionary <string, string>();
string name = "f" + GetFunctionCount();
env.Add(node.functionName.identifier, name);
List <ParameterNode> boundParams = BindParameters(node.parameters, localEnvironment);
List <StatementNode> boundStatements = new List <StatementNode>();
foreach (StatementNode statement in node.body)
{
StatementNode boundStatement = Bind(statement, localEnvironment);
boundStatements.Add(boundStatement);
}
ReturnNode boundReturn = null;
if (node.returnNode != null)
{
boundReturn = BindReturn(node.returnNode, localEnvironment);
}
return(new FunctionNode(new IdentifierNode(name), boundParams, boundStatements, boundReturn));
}
private void Generate(FunctionNode node, List <Instruction> instructions)
{
string name = node.functionName.identifier;
List <ParameterInstruction> parameters = new List <ParameterInstruction>();
foreach (ParameterNode param in node.parameters)
{
parameters.Add(new ParameterInstruction(param.identifier));
}
List <Instruction> funcInstructions = new List <Instruction>();
foreach (StatementNode statement in node.body)
{
Generate(statement, funcInstructions);
}
ReturnInstruction returnInstruction = null;
if (node.returnNode != null)
{
List <Instruction> returnInstructions = new List <Instruction>();
returnInstruction = GenerateReturn(node.returnNode);
}
instructions.Add(new FunctionInstruction(name, parameters, funcInstructions, returnInstruction));
}