eval

package

v0.2.0 Latest Latest Go to latest Published: Dec 18, 2025 License: MIT Imports: 15 Imported by: 0

Details

Package eval provides an Evaluator to run CEL expressions.

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type Cache interface {
	Get(expr string) (ast *cel.Ast, ok bool)
	Set(expr string, ast *cel.Ast) error
}

type Config struct {
	EnvOptions []cel.EnvOption
	Cache      Cache
}

type Evaluator struct {
	// contains filtered or unexported fields
}

Evaluator supports running and optionally caching CEL expressions.

func NewEvaluator(cnf *Config) (*Evaluator, error)

func (e *Evaluator) CompileAndCache(expr string) (*cel.Ast, error)

func (e *Evaluator) Eval(expr string, input any) (ref.Val, error)

type FileCache struct {
	// contains filtered or unexported fields
}

func NewFileCache(filename string) (*FileCache, error)

NewFileCache creates a Cache that can persist to a file.

This function will read the file. The caller will need to run the FileCache.Save method to save the file.

func NewFileCacheWithContent(content []byte, filename string) (*FileCache, error)

NewFileCacheWithContent creates a FileCache with existing content, e.g. from an embedded file.

Optionally, set a filename and call FileCache.Save to save the file.

func (c *FileCache) Get(expr string) (*cel.Ast, bool)

func (c *FileCache) Save() error

func (c *FileCache) Set(expr string, ast *cel.Ast) error

Path	Synopsis
celfuncs Package celfuncs provides functions for use in a Common Expression Language (CEL) environment.	Package celfuncs provides functions for use in a Common Expression Language (CEL) environment.