Function build_snippet

src/feature/code_completion.cpp:164–209

Build a snippet string from a CodeCompletionString. Produces e.g. "funcName(${1:int x}, ${2:float y})" for functions, or "ClassName<${1:T}>" for class templates.

            case CK::CK_LeftParen:
                in_parens = true;
                signature += '(';
                break;
            case CK::CK_RightParen:
                signature += ')';
                in_parens = false;
                break;
            case CK::CK_Placeholder:
            case CK::CK_CurrentParameter:
                if(in_parens && chunk.Text) {
                    signature += chunk.Text;
                }
                break;
            case CK::CK_Text:
                if(in_parens && chunk.Text) {
                    signature += chunk.Text;
                }
                break;
            case CK::CK_Informative: {
                // A function that cannot be called where completion happens
                // (a destructor after `T::`) carries its whole parameter list
                // as informative chunks, parentheses included.
                llvm::StringRef text = chunk.Text ? chunk.Text : "";
                if(text == "(") {
                    in_parens = true;
                }
                if(in_parens) {
                    signature += text;
                }
                if(text == ")") {
                    in_parens = false;
                }
                break;
            }
            case CK::CK_LeftAngle:
                signature += '<';
                in_parens = true;
                break;
            case CK::CK_RightAngle:
                signature += '>';
                in_parens = false;
                break;
            case CK::CK_Comma:
                if(in_parens) {
                    signature += ", ";
                }
                break;
            default: break;
        }
    }