expression

package

v0.6.0 Latest Latest Go to latest Published: May 12, 2026 License: MIT Imports: 8 Imported by: 0

Details

Package expression provides expression evaluation capabilities for conditional execution.

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func AllFunctions() map[string]interface{}

AllFunctions returns all custom functions combined

func CollectionFunctions() map[string]interface{}

CollectionFunctions returns array/collection functions

func MathFunctions() map[string]interface{}

MathFunctions returns mathematical functions

func StringFunctions() map[string]interface{}

StringFunctions returns string manipulation functions

func TypeFunctions() map[string]interface{}

TypeFunctions returns type checking functions

func UtilityFunctions() map[string]interface{}

UtilityFunctions returns utility functions

type Evaluator interface {
	Evaluate(expression string, variables map[string]interface{}) (interface{}, error)
}

Evaluator defines the interface for evaluating expressions

func NewExprEvaluator() Evaluator

NewExprEvaluator creates a new ExprEvaluator.

func NewGovaluateEvaluator() Evaluator

NewGovaluateEvaluator is kept for backwards compatibility, now returns ExprEvaluator.

type ExprEvaluator struct {
}

ExprEvaluator implements Evaluator using the expr-lang library.

func (e *ExprEvaluator) Evaluate(expression string, variables map[string]interface{}) (interface{}, error)

Evaluate evaluates an expression with the given variables