ucl

package
v0.1.3 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Mar 14, 2026 License: MIT Imports: 14 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var ErrHalt = errors.New("halt")
View Source 
var (
	ErrNotConvertable = errors.New("result not convertable to go")
)

Functions

func LineHandler 

func LineHandler(line func(string)) io.Writer

func ObjectToString 

func ObjectToString(obj Object) string

func ObjectsEqual 

func ObjectsEqual(l, r Object) bool

Types

type BoolObject 

type BoolObject bool

func (BoolObject) String 

func (b BoolObject) String() string

func (BoolObject) Truthy 

func (b BoolObject) Truthy() bool

type BuiltinHandler 

type BuiltinHandler func(ctx context.Context, args CallArgs) (any, error)

type CallArgs 

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

func (*CallArgs) Bind 

func (ca *CallArgs) Bind(vars ...interface{}) error

func (CallArgs) BindSwitch 

func (ca CallArgs) BindSwitch(name string, val interface{}) error

func (*CallArgs) CanBind 

func (ca *CallArgs) CanBind(vars ...interface{}) bool

func (CallArgs) HasSwitch 

func (ca CallArgs) HasSwitch(name string) bool

func (CallArgs) IsTopLevel 

func (ca CallArgs) IsTopLevel() bool

func (*CallArgs) NArgs 

func (ca *CallArgs) NArgs() int

func (*CallArgs) RestAsObjects 

func (ca *CallArgs) RestAsObjects() []Object

func (*CallArgs) Shift 

func (ca *CallArgs) Shift(n int)

type EchoPrinter 

type EchoPrinter func(ctx context.Context, w io.Writer, args []any) error

type ErrRuntime 

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

func (ErrRuntime) Error 

func (e ErrRuntime) Error() string

type EvalOption 

type EvalOption func(*evalOptions)

func WithSubEnv 

func WithSubEnv() EvalOption

type GoFunction 

type GoFunction func(ctx context.Context, args CallArgs) (any, error)

func (GoFunction) String 

func (gf GoFunction) String() string

func (GoFunction) Truthy 

func (gf GoFunction) Truthy() bool

type HashObject 

type HashObject map[string]Object

func (HashObject) Each 

func (s HashObject) Each(fn func(k string, v Object) error) error

func (HashObject) Len 

func (s HashObject) Len() int

func (HashObject) SetValue 

func (s HashObject) SetValue(k string, val Object) error

func (HashObject) String 

func (s HashObject) String() string

func (HashObject) Truthy 

func (s HashObject) Truthy() bool

func (HashObject) Value 

func (s HashObject) Value(k string) Object

type Hashable 

type Hashable interface {
	Len() int
	Value(k string) Object
	Each(func(k string, v Object) error) error
}

type Inst 

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

func New 

func New(opts ...InstOption) *Inst

func (*Inst) Eval 

func (inst *Inst) Eval(ctx context.Context, r io.Reader, options ...EvalOption) (any, error)

func (*Inst) EvalString 

func (inst *Inst) EvalString(ctx context.Context, expr string) (any, error)

func (*Inst) Out 

func (inst *Inst) Out() io.Writer

func (*Inst) SetBuiltin 

func (inst *Inst) SetBuiltin(name string, fn BuiltinHandler)

func (*Inst) SetBuiltinInvokable 

func (inst *Inst) SetBuiltinInvokable(name string, fn Invokable)

func (*Inst) SetMissingPseudoVarHandler 

func (inst *Inst) SetMissingPseudoVarHandler(h MissingPseudoVarHandler)

func (*Inst) SetPseudoVar 

func (inst *Inst) SetPseudoVar(name string, h PseudoVarHandler)

func (*Inst) SetVar 

func (inst *Inst) SetVar(name string, value any)

type InstOption 

type InstOption func(*Inst)

func WithCustomEchoPrinter 

func WithCustomEchoPrinter(echoPrinter EchoPrinter) InstOption

func WithMissingBuiltinHandler 

func WithMissingBuiltinHandler(handler MissingBuiltinHandler) InstOption

func WithModule 

func WithModule(module Module) InstOption

func WithOut 

func WithOut(out io.Writer) InstOption

type IntObject 

type IntObject int

func (IntObject) String 

func (i IntObject) String() string

func (IntObject) Truthy 

func (i IntObject) Truthy() bool

type Invokable 

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

func (Invokable) Invoke 

func (i Invokable) Invoke(ctx context.Context, args ...any) (any, error)

func (Invokable) IsNil 

func (i Invokable) IsNil() bool

type Iterable 

type Iterable interface {
	HasNext() bool

	// Next returns the next object from the iterable if one exists, otherwise
	// returns nil, false.
	Next(ctx context.Context) (Object, error)
}

type ListObject 

type ListObject []Object

func NewListObject 

func NewListObject() *ListObject

func NewListObjectOfLength added in v0.1.2 

func NewListObjectOfLength(l int) *ListObject

func (*ListObject) Append 

func (lo *ListObject) Append(o Object)

func (*ListObject) Index 

func (s *ListObject) Index(i int) Object

func (*ListObject) Insert 

func (lo *ListObject) Insert(idx int, obj Object) error

func (*ListObject) Len 

func (s *ListObject) Len() int

func (*ListObject) SetIndex 

func (s *ListObject) SetIndex(i int, toVal Object) error

func (*ListObject) String 

func (s *ListObject) String() string

func (*ListObject) Truthy 

func (s *ListObject) Truthy() bool

type Listable 

type Listable interface {
	Len() int
	Index(i int) Object
}

type MissingBuiltinHandler 

type MissingBuiltinHandler func(ctx context.Context, name string, args CallArgs) (any, error)

type MissingModifiablePseudoVarHandler 

type MissingModifiablePseudoVarHandler interface {
	MissingPseudoVarHandler
	Set(ctx context.Context, string, v any) error
}

type MissingPseudoVarHandler 

type MissingPseudoVarHandler interface {
	Get(ctx context.Context, name string) (any, error)
}

type ModHashable 

type ModHashable interface {
	Hashable
	SetValue(k string, val Object) error
}

type ModListable 

type ModListable interface {
	Listable

	// Insert adds a new item to the list. idx can be a positive
	// number from 0 to len(), in which case the object will be inserted
	// at that position, shifting all other elements to the right.
	// If idx is negative, then the item will be inserted
	// at that position from the right.
	Insert(idx int, obj Object) error

	// SetIndex replaces the item at index position idx with obj.
	SetIndex(idx int, obj Object) error
}

type ModifiablePseudoVarHandler 

type ModifiablePseudoVarHandler interface {
	PseudoVarHandler
	Set(ctx context.Context, v any) error
}

type Module 

type Module struct {
	Name     string
	Builtins map[string]BuiltinHandler
}

type Object 

type Object interface {
	String() string
	Truthy() bool
}

type OpaqueObject 

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

func Opaque 

func Opaque(v any) OpaqueObject

func (OpaqueObject) String 

func (p OpaqueObject) String() string

func (OpaqueObject) Truthy 

func (p OpaqueObject) Truthy() bool

type PseudoVarHandler 

type PseudoVarHandler interface {
	Get(ctx context.Context) (any, error)
}

type StringListObject 

type StringListObject []string

func (StringListObject) Index 

func (ss StringListObject) Index(i int) Object

func (StringListObject) Len 

func (ss StringListObject) Len() int

func (StringListObject) String 

func (ss StringListObject) String() string

func (StringListObject) Truthy 

func (ss StringListObject) Truthy() bool

type StringObject 

type StringObject string

func (StringObject) String 

func (s StringObject) String() string

func (StringObject) Truthy 

func (s StringObject) Truthy() bool

type TimeObject 

type TimeObject time.Time

func (TimeObject) String 

func (t TimeObject) String() string

func (TimeObject) Truthy 

func (t TimeObject) Truthy() bool

Source Files

  • ast.go
  • builtins.go
  • env.go
  • errors.go
  • eval.go
  • inst.go
  • io.go
  • objs.go
  • userbuiltin.go

Directories

Path Synopsis

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.