gnodet opened a new pull request, #20936:
URL: https://github.com/apache/camel/pull/20936
This commit implements support for the ternary operator (`condition ?
trueValue : falseValue`)
in Apache Camel's Simple language, providing a more familiar syntax
alongside the existing
iif function.
## Key Changes:
- Added new token types (ternaryOperator, ternaryColon) to TokenType enum
- Created TernaryOperatorType enum to represent the ternary operator
- Implemented TernaryExpression AST node with support for:
* Condition evaluation with proper boolean type conversion
* True and false value branches
* Quote handling for literal values
* Code generation for csimple
- Updated SimpleTokenizer to recognize `?` and `:` operators with proper
spacing requirements
- Extended SimplePredicateParser and SimpleExpressionParser to:
* Parse ternary operator syntax
* Prepare ternary expressions in the AST
* Handle nested ternary operators
- Added comprehensive test suite covering:
* Basic ternary operations
* Nested ternary operators
* Integration with existing Simple language features
* Null value handling
* Type coercion
* Backward compatibility with iif function and elvis operator
The implementation maintains full backward compatibility with existing
Simple language
features including the iif function and the elvis operator (?:).
## Examples:
- Basic: `${header.foo > 10 ? 'high' : 'low'}`
- Nested: `${header.x > 10 ? (header.y > 5 ? 'A' : 'B') : 'C'}`
- With functions: `${header.foo > 0 ? ${body} : 'default'}`
JIRA: https://issues.apache.org/jira/browse/CAMEL-22873
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