v2

package
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 Go to latest Published: Dec 19, 2025 License: MIT Imports: 8 Imported by: 0

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Constants

This section is empty.

Variables

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var ExpressionConstants = struct {
	True         string
	False        string
	NumberFormat string
}{
	True:         "true",
	False:        "false",
	NumberFormat: "%.15g",
}

ExpressionConstants holds string constants used in conversions.

Functions

This section is empty.

Types

type BasicArray 

type BasicArray[T any] []T

func (BasicArray[T]) GetAt 

func (a BasicArray[T]) GetAt(i int64) T

func (BasicArray[T]) GetEnumerator 

func (a BasicArray[T]) GetEnumerator() []T

type Case 

type Case struct {
}

func (Case) Evaluate 

func (Case) Evaluate(eval *Evaluator, args []exprparser.Node) (*EvaluationResult, error)

type CaseInsensitiveObject 

type CaseInsensitiveObject[T any] map[string]T

func GetFunctions 

func GetFunctions() CaseInsensitiveObject[Function]

func (CaseInsensitiveObject[T]) Get 

func (o CaseInsensitiveObject[T]) Get(key string) T

func (CaseInsensitiveObject[T]) GetEnumerator 

func (o CaseInsensitiveObject[T]) GetEnumerator() map[string]T

type CaseSensitiveObject 

type CaseSensitiveObject[T any] map[string]T

func (CaseSensitiveObject[T]) Get 

func (o CaseSensitiveObject[T]) Get(key string) T

func (CaseSensitiveObject[T]) GetEnumerator 

func (o CaseSensitiveObject[T]) GetEnumerator() map[string]T

type Contains 

type Contains struct {
}

func (Contains) Evaluate 

func (Contains) Evaluate(eval *Evaluator, args []exprparser.Node) (*EvaluationResult, error)

type EndsWith 

type EndsWith struct {
}

func (EndsWith) Evaluate 

func (EndsWith) Evaluate(eval *Evaluator, args []exprparser.Node) (*EvaluationResult, error)

type EvaluationContext 

type EvaluationContext struct {
	Variables ReadOnlyObject[any]
	Functions ReadOnlyObject[Function]
}

EvaluationContext holds variables that can be referenced in expressions.

func NewEvaluationContext 

func NewEvaluationContext() *EvaluationContext

type EvaluationResult 

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

func CreateIntermediateResult 

func CreateIntermediateResult(context *EvaluationContext, obj interface{}) *EvaluationResult

CreateIntermediateResult creates an EvaluationResult from an arbitrary object.

func NewEvaluationResult 

func NewEvaluationResult(context *EvaluationContext, level int, val interface{}, kind ValueKind, raw interface{}, omitTracing bool) *EvaluationResult

NewEvaluationResult creates a new EvaluationResult.

func (*EvaluationResult) AbstractEqual 

func (er *EvaluationResult) AbstractEqual(other *EvaluationResult) bool

AbstractEqual compares two EvaluationResults using the abstract equality algorithm.

func (*EvaluationResult) AbstractGreaterThan 

func (er *EvaluationResult) AbstractGreaterThan(other *EvaluationResult) bool

AbstractGreaterThan compares two EvaluationResults.

func (*EvaluationResult) AbstractGreaterThanOrEqual 

func (er *EvaluationResult) AbstractGreaterThanOrEqual(other *EvaluationResult) bool

AbstractGreaterThanOrEqual

func (*EvaluationResult) AbstractLessThan 

func (er *EvaluationResult) AbstractLessThan(other *EvaluationResult) bool

AbstractLessThan

func (*EvaluationResult) AbstractLessThanOrEqual 

func (er *EvaluationResult) AbstractLessThanOrEqual(other *EvaluationResult) bool

AbstractLessThanOrEqual

func (*EvaluationResult) AbstractNotEqual 

func (er *EvaluationResult) AbstractNotEqual(other *EvaluationResult) bool

AbstractNotEqual

func (*EvaluationResult) ConvertToNumber 

func (er *EvaluationResult) ConvertToNumber() float64

ConvertToNumber converts the value to a float64.

func (*EvaluationResult) ConvertToString 

func (er *EvaluationResult) ConvertToString() string

ConvertToString converts the value to a string.

func (*EvaluationResult) IsFalsy 

func (er *EvaluationResult) IsFalsy() bool

IsFalsy implements the logic from the C# class.

func (*EvaluationResult) IsPrimitive 

func (er *EvaluationResult) IsPrimitive() bool

IsPrimitive returns true if the kind is a primitive type.

func (*EvaluationResult) IsTruthy 

func (er *EvaluationResult) IsTruthy() bool

IsTruthy is the negation of IsFalsy.

func (*EvaluationResult) Kind 

func (er *EvaluationResult) Kind() ValueKind

Kind returns the ValueKind of the result.

func (*EvaluationResult) Raw 

func (er *EvaluationResult) Raw() interface{}

Raw returns the raw value that was passed to the constructor.

func (*EvaluationResult) TryGetCollectionInterface 

func (er *EvaluationResult) TryGetCollectionInterface() (interface{}, bool)

TryGetCollectionInterface returns the underlying collection if the value is an array or object.

func (*EvaluationResult) Value 

func (er *EvaluationResult) Value() interface{}

Value returns the canonical value.

type Evaluator 

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

Evaluator evaluates workflow expressions using the lexer and parser from workflow.

func NewEvaluator 

func NewEvaluator(ctx *EvaluationContext) *Evaluator

NewEvaluator creates an Evaluator with the supplied context.

func (*Evaluator) Context 

func (e *Evaluator) Context() *EvaluationContext

func (*Evaluator) Evaluate 

func (e *Evaluator) Evaluate(root exprparser.Node) (*EvaluationResult, error)

func (*Evaluator) EvaluateBoolean 

func (e *Evaluator) EvaluateBoolean(expr string) (bool, error)

EvaluateBoolean parses and evaluates the expression, returning a boolean result.

func (*Evaluator) EvaluateRaw 

func (e *Evaluator) EvaluateRaw(expr string) (interface{}, error)

Evaluate parses and evaluates the expression, returning a boolean result.

func (*Evaluator) ToRaw 

func (e *Evaluator) ToRaw(result *EvaluationResult) (interface{}, error)

type FilteredArray 

type FilteredArray []interface{}

func (FilteredArray) GetAt 

func (a FilteredArray) GetAt(i int64) interface{}

func (FilteredArray) GetEnumerator 

func (a FilteredArray) GetEnumerator() []interface{}

type Format 

type Format struct {
}

func (Format) Evaluate 

func (Format) Evaluate(eval *Evaluator, args []exprparser.Node) (*EvaluationResult, error)

type FromJSON 

type FromJSON struct {
}

func (FromJSON) Evaluate 

func (FromJSON) Evaluate(eval *Evaluator, args []exprparser.Node) (*EvaluationResult, error)

type Function 

type Function interface {
	Evaluate(eval *Evaluator, args []exprparser.Node) (*EvaluationResult, error)
}

type Join 

type Join struct {
}

func (Join) Evaluate 

func (Join) Evaluate(eval *Evaluator, args []exprparser.Node) (*EvaluationResult, error)

type ReadOnlyArray 

type ReadOnlyArray[T any] interface {
	GetAt(i int64) T
	GetEnumerator() []T
}

type ReadOnlyObject 

type ReadOnlyObject[T any] interface {
	Get(key string) T
	GetEnumerator() map[string]T
}

type StartsWith 

type StartsWith struct {
}

func (StartsWith) Evaluate 

func (StartsWith) Evaluate(eval *Evaluator, args []exprparser.Node) (*EvaluationResult, error)

type ToJSON 

type ToJSON struct {
}

func (ToJSON) Evaluate 

func (ToJSON) Evaluate(eval *Evaluator, args []exprparser.Node) (*EvaluationResult, error)

type ValueKind 

type ValueKind int
const (
	ValueKindNull ValueKind = iota
	ValueKindBoolean
	ValueKindNumber
	ValueKindString
	ValueKindObject
	ValueKindArray
)

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