public string Compile(MethodReference methodReference, out HashSet <Uniform> uniforms)
{
if (methodReference == null)
{
uniforms = null;
return(null);
}
var methodDefinition = methodReference.Resolve();
// Method body
// Reference: ECMA-335
// http://www.ecma-international.org/publications/standards/Ecma-335.htm
HashSet <string> visited = new HashSet <string>();
Dictionary <string, MethodDefinition> methods = new Dictionary <string, MethodDefinition>();
methods.Add("main", methodReference.Resolve());
Dictionary <string, CompileContext> contexts = new Dictionary <string, CompileContext>();
List <string> sources = new List <string>();
uniforms = new HashSet <Uniform>();
while (methods.Count != 0)
{
Dictionary <string, MethodDefinition> tmp = new Dictionary <string, MethodDefinition>();
foreach (var name in methods.Keys)
{
if (visited.Contains(name))
{
continue;
}
var md = methods[name];
CompileContext cc = new CompileContext(md);
contexts[name] = cc;
cc.Generate();
uniforms.UnionWith(cc.uniforms);
sources.Insert(0, cc.GetMethodSourceCode(name));
visited.Add(name);
foreach (var n in cc.methods.Keys)
{
if (visited.Contains(n))
{
continue;
}
tmp[n] = cc.methods[n];
}
}
methods.Clear();
foreach (var name in tmp.Keys)
{
methods[name] = tmp[name];
}
}
var code = new StringWriter();
code.WriteLine("#version 330 core");
code.WriteLine(CompileContext.GetUniformSourceCode(uniforms));
code.WriteLine(contexts["main"].GetAttributeSourceCode());
foreach (var source in sources)
{
code.WriteLine(source);
}
return(code.ToString());
}
