Method _parseTestExpression

server/src/parser/parser.ts:1334–1363

()

    // test: or_test ['if' or_test 'else' test] | lambdef
    private _parseTestExpression(): ExpressionNode {
        if (this._peekKeywordType() === KeywordType.Lambda) {
            return this._parseLambdaExpression();
        }

        let ifExpr = this._parseOrTest();
        if (ifExpr instanceof ErrorExpressionNode) {
            return ifExpr;
        }

        if (!this._consumeTokenIfKeyword(KeywordType.If)) {
            return ifExpr;
        }

        let testExpr = this._parseOrTest();
        if (testExpr instanceof ErrorExpressionNode) {
            return testExpr;
        }

        if (!this._consumeTokenIfKeyword(KeywordType.Else)) {
            return this._handleExpressionParseError('Expected "else"');
        }

        let elseExpr = this._parseTestExpression();
        if (elseExpr instanceof ErrorExpressionNode) {
            return elseExpr;
        }

        return new ConditionalExpressionNode(ifExpr, testExpr, elseExpr);
    }

    // or_test: and_test ('or' and_test)*
    private _parseOrTest(): ExpressionNode {