private IEnumerable <CompletionItem> CreateSnippets(FuncDefinitionAst ast)
{
if (ast != null)
{
yield return(CreateSnippetItem("letc", "let ${1:foo} = $2"));
yield return(CreateSnippetItem("if", "if ($1) {\n\t$2\n}"));
yield return(CreateSnippetItem("else", "else {\n\t$1\n}"));
yield return(CreateSnippetItem("elseif", "else if ($1) {\n\t$2\n}"));
yield return(CreateSnippetItem("while", "while ($1) {\n\t$2\n}"));
yield return(CreateSnippetItem("for", "for ${1:i} = $2, $3, $4 {\n\t$5\n}"));
yield return(CreateSnippetItem("foreach", "foreach ${1:val} in $2 {\n\t$3\n}"));
yield return(CreateSnippetItem("letac", "let ${1:foo} = {|$2| $3}"));
}
else
{
yield return(CreateSnippetItem("fun", "fun ${1:foo}()\n\t$2\nend"));
}
}
public async Task <CompletionList> Handle(CompletionParams request, CancellationToken cancellationToken)
{
var text = _workspaceService.GetMarineFileBuffer(request.TextDocument.Uri.Path);
var tokens = new LexicalAnalyzer().GetTokens(text);
var result = new SyntaxAnalyzer().Parse(tokens);
var tasks = new List <Task <IEnumerable <CompletionItem> > >();
FuncDefinitionAst currentFuncDefAst = null;
if (result.programAst != null)
{
currentFuncDefAst = await Task.Run(() => GetCurrentFunctionAst(result.programAst, request.Position),
cancellationToken);
if (currentFuncDefAst != null)
{
tasks.Add(Task.Run(() => CreateFunctions(result.programAst), cancellationToken));
tasks.Add(Task.Run(() => CreateFunctionParamaters(currentFuncDefAst), cancellationToken));
tasks.Add(Task.Run(() => CreateVariables(currentFuncDefAst, request.Position), cancellationToken));
tasks.Add(Task.Run(CreateKeywords, cancellationToken));
}
}
tasks.Add(Task.Run(() => CreateSnippets(currentFuncDefAst), cancellationToken));
return(new CompletionList((await Task.WhenAll(tasks)).SelectMany(e => e)));
}
private IEnumerable <CompletionItem> CreateVariables(FuncDefinitionAst ast, Position position)
{
return(ast.LookUp <AssignmentVariableAst>().Select(e => CreateCompletionItem(e.variableAst.VarName,
CompletionItemKind.Variable, $"local variable {e.variableAst.VarName}")));
}
private IEnumerable <CompletionItem> CreateFunctionParamaters(FuncDefinitionAst ast)
{
return(ast.args.Select(e =>
CreateCompletionItem(e.VarName, CompletionItemKind.Variable, $"paramater {e.VarName}")));
}