expr

Documentation

Index

• func EvalBool(zctx *zed.Context, val vector.Any, e Evaluator) (vector.Any, bool)
• func ToBool(val zed.Value) (bool, bool)
• func ToFloat(val zed.Value) (float64, bool)
• func ToInt(val zed.Value) (int64, bool)
• func ToUint(val zed.Value) (uint64, bool)
• type And
  • func NewLogicalAnd(zctx *zed.Context, lhs, rhs Evaluator) *And
  • func (a *And) Eval(val vector.Any) vector.Any
• type Compare
  • func NewCompare(zctx *zed.Context, lhs, rhs Evaluator, operator string) *Compare
  • func (c *Compare) Eval(val vector.Any) vector.Any
• type DotExpr
  • func NewDotExpr(zctx *zed.Context, record Evaluator, field string) *DotExpr
  • func (d *DotExpr) Eval(val vector.Any) vector.Any
• type Evaluator
  • func NewDottedExpr(zctx *zed.Context, f field.Path) Evaluator
• type Literal
  • func NewLiteral(val zed.Value) *Literal
  • func (l Literal) Eval(val vector.Any) vector.Any
• type Not
  • func NewLogicalNot(zctx *zed.Context, e Evaluator) *Not
  • func (n *Not) Eval(val vector.Any) vector.Any
• type Or
  • func NewLogicalOr(zctx *zed.Context, lhs, rhs Evaluator) *Or
  • func (o *Or) Eval(val vector.Any) vector.Any
• type This
  • func (*This) Eval(val vector.Any) vector.Any

Functions

func EvalBool

func EvalBool(zctx *zed.Context, val vector.Any, e Evaluator) (vector.Any, bool)

EvalBool evaluates e using val to computs a boolean result. For elements of the result that are not boolean, an error is calculated for each non-bool slot and they are returned as an error. If all of the value slots are errors, then the return value is nil.

func ToBool

func ToBool(val zed.Value) (bool, bool)

func ToFloat

func ToFloat(val zed.Value) (float64, bool)

func ToInt

func ToInt(val zed.Value) (int64, bool)

func ToUint

func ToUint(val zed.Value) (uint64, bool)

Types

type And

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

func NewLogicalAnd

func NewLogicalAnd(zctx *zed.Context, lhs, rhs Evaluator) *And

func (*And) Eval

func (a *And) Eval(val vector.Any) vector.Any

type Compare

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

func NewCompare

func NewCompare(zctx *zed.Context, lhs, rhs Evaluator, operator string) *Compare

func (*Compare) Eval

func (c *Compare) Eval(val vector.Any) vector.Any

type DotExpr

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

func NewDotExpr

func NewDotExpr(zctx *zed.Context, record Evaluator, field string) *DotExpr

func (*DotExpr) Eval

func (d *DotExpr) Eval(val vector.Any) vector.Any

type Evaluator

type Evaluator interface {
	Eval(vector.Any) vector.Any
}

func NewDottedExpr

func NewDottedExpr(zctx *zed.Context, f field.Path) Evaluator

type Literal

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

func NewLiteral

func NewLiteral(val zed.Value) *Literal

func (Literal) Eval

func (l Literal) Eval(val vector.Any) vector.Any

type Not

type Not struct {
	// contains filtered or unexported fields
}

func NewLogicalNot

func NewLogicalNot(zctx *zed.Context, e Evaluator) *Not

func (*Not) Eval

func (n *Not) Eval(val vector.Any) vector.Any

type Or

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

func NewLogicalOr

func NewLogicalOr(zctx *zed.Context, lhs, rhs Evaluator) *Or

func (*Or) Eval

func (o *Or) Eval(val vector.Any) vector.Any

type This

type This struct{}

func (*This) Eval

func (*This) Eval(val vector.Any) vector.Any