SignatureInformation GetFuncSignInfo(bhlParser.FuncDeclContext funcDecl)
{
SignatureInformation funcSignature = new SignatureInformation();
string label = funcDecl.NAME().GetText() + "(";
List <ParameterInformation> funcParameters = BHLSPUtil.GetInfoParams(funcDecl);
if (funcParameters.Count > 0)
{
for (int k = 0; k < funcParameters.Count; k++)
{
var funcParameter = funcParameters[k];
label += funcParameter.label.Value;
if (k != funcParameters.Count - 1)
{
label += ", ";
}
}
}
else
{
label += "<no parameters>";
}
label += ")";
if (funcDecl.retType() is bhlParser.RetTypeContext retType)
{
label += ":";
var types = retType.type();
for (int n = 0; n < types.Length; n++)
{
var t = types[n];
if (t.exception != null)
{
continue;
}
label += t.NAME().GetText() + " ";
}
}
else
{
label += ":void";
}
funcSignature.label = label;
funcSignature.parameters = funcParameters.ToArray();
return(funcSignature);
}
public override RpcResult Hover(TextDocumentPositionParams args)
{
BHLSPWorkspace.self.TryAddDocument(args.textDocument.uri);
if (BHLSPWorkspace.self.FindDocument(args.textDocument.uri) is BHLTextDocument document)
{
int line = (int)args.position.line;
int character = (int)args.position.character;
int idx = document.GetIndex(line, character);
bhlParser.CallExpContext callExp = null;
foreach (IParseTree node in BHLSPUtil.DFS(document.ToParser().program()))
{
if (node is ParserRuleContext prc)
{
if (prc.Start.StartIndex <= idx && idx <= prc.Stop.StopIndex)
{
callExp = prc as bhlParser.CallExpContext;
break;
}
}
}
bhlParser.FuncDeclContext funcDecl = null;
if (callExp != null)
{
string callExpName = callExp.NAME().GetText();
foreach (var doc in BHLSPWorkspace.self.ForEachBhlImports(document))
{
if (doc.FuncDecls.ContainsKey(callExpName))
{
funcDecl = doc.FuncDecls[callExpName];
break;
}
}
}
if (funcDecl != null)
{
string label = funcDecl.NAME().GetText() + "(";
List <ParameterInformation> funcParameters = BHLSPUtil.GetInfoParams(funcDecl);
if (funcParameters.Count > 0)
{
for (int k = 0; k < funcParameters.Count; k++)
{
var funcParameter = funcParameters[k];
label += funcParameter.label.Value;
if (k != funcParameters.Count - 1)
{
label += ", ";
}
}
}
else
{
label += "<no parameters>";
}
label += ")";
if (funcDecl.retType() is bhlParser.RetTypeContext retType)
{
label += ":";
var types = retType.type();
for (int n = 0; n < types.Length; n++)
{
var t = types[n];
if (t.exception != null)
{
continue;
}
label += t.NAME().GetText() + " ";
}
}
else
{
label += ":void";
}
return(RpcResult.Success(new Hover
{
contents = new MarkupContent
{
kind = "plaintext",
value = label
}
}));
}
}
return(RpcResult.Success());
}