private Func <FunctionInvoker, Delegate> CompileFunction(CompileContext ctx)
{
if (!string.IsNullOrEmpty(name))
{
ctx.AddVariable(ValueType, name);
}
CompiledDelegate evalBody;
var arguments = this.arguments;
var child = new CompileContext(ctx, BlockType.Method);
foreach (var arg in arguments)
{
child.AddVariable(arg.ValueType, arg.Name);
}
evalBody = body.Compile(child);
return((funcInvoke) =>
{
funcInvoke.body = evalBody;
funcInvoke.arguments = arguments;
switch (arguments.Count)
{
case 0: return Func0(funcInvoke);
case 1: return Func1(funcInvoke);
case 2: return Func2(funcInvoke);
case 3: return Func3(funcInvoke);
case 4: return Func4(funcInvoke);
}
return null;
});
}
public override CompiledDelegate Compile(CompileContext ctx)
{
var variables = this.variables;
CompiledDelegate[] evals;
Action <InvocationContext>[] evalVars;
var child = new CompileContext(ctx, BlockType.Block);
foreach (var variable in variables)
{
child.AddVariable(variable.ValueType, variable.Name);
}
evals = expressions.Select(o => o.Compile(child)).ToArray();
evalVars = variables.Select(o => o.CompileInitValue(child)).ToArray();
return((invoke) =>
{
var childInvoke = invoke.CreateChild(BlockType.Block);
foreach (var evalVar in evalVars)
{
evalVar(childInvoke);
}
foreach (var expr in evals)
{
expr(childInvoke);
if (childInvoke.GotoType != GotoType.None)
{
childInvoke.BubblingGoto();
break;
}
}
return null;
});
}