public void EmitEntryPointAdapter(FunctionDeclaration entryPoint, Code code)
{
if (entryPoint == null)
{
return;
}
code.Definitions.DeclarationSeparatorLine();
code.Definitions.AppendLine("// Entry Point Adapter");
code.Definitions.AppendLine("int32_t main(const int argc, char const * const * const argv)");
code.Definitions.BeginBlock();
var arguments = new List <string>();
foreach (var parameterTypeName in entryPoint.Parameters.Select(p => p.Type).Cast <ObjectType>().Select(t => t.Name))
{
if (parameterTypeName.Equals(Name.From("system", "console", "Console")))
{
code.Definitions.AppendLine("system__console__Console console = { &system__console__Console___vtable, malloc(sizeof(system__console__Console___Self)) };");
arguments.Add("system__console__Console___new__1(console)");
}
else if (parameterTypeName.Equals(Name.From("system", "console", "Arguments")))
{
throw new NotImplementedException();
}
else
{
throw new Exception($"Unexpected type for parameter to main: {parameterTypeName}");
}
}
var joinedArguments = string.Join(", ", arguments);
if (entryPoint.ReturnType == DataType.Void)
{
code.Definitions.AppendLine($"{nameMangler.MangleName(entryPoint)}({joinedArguments});");
code.Definitions.AppendLine("return 0;");
}
else
{
code.Definitions.AppendLine($"return {nameMangler.MangleName(entryPoint)}({joinedArguments})._value;");
}
code.Definitions.EndBlock();
}
private void EmitFunction(FunctionDeclaration function, Code code)
{
// Don't emit functions without control flow, they are generic
// TODO need to handle better
if (function.ControlFlow == null)
{
return;
}
var name = nameMangler.MangleName(function);
var parameters = Convert(function.Parameters);
var returnType = typeConverter.Convert(function.ReturnType.AssertResolved());
// Write out the function declaration for C so we can call functions defined after others
code.FunctionDeclarations.AppendLine($"{returnType} {name}({parameters});");
code.Definitions.DeclarationSeparatorLine();
code.Definitions.AppendLine($"{returnType} {name}({parameters})");
code.Definitions.BeginBlock();
controlFlowEmitter.Emit(function.ControlFlow, code);
code.Definitions.EndBlock();
}
private void EmitFunction(FunctionIL function, Code code)
{
var name = nameMangler.MangleName(function);
var parameters = Convert(function.Parameters);
var returnType = typeConverter.Convert(function.Symbol.ReturnDataType.Known());
// Write out the function declaration for C so we can call functions defined after others
code.FunctionDeclarations.AppendLine($"{returnType} {name}({parameters});");
code.Definitions.DeclarationSeparatorLine();
code.Definitions.AppendLine($"{returnType} {name}({parameters})");
code.Definitions.BeginBlock();
controlFlowEmitter.Emit(function, code);
code.Definitions.EndBlock();
}
