vm

package

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Versions in this module

v0

v0.5.0

Nov 10, 2023

Changes in this version

type Array

+ func (a *Array) AddIter(vm *VM, iter Iterator) error

type CompiledPackage

+ Builtin bool

+ Deps []*CompiledPackage

+ Index int

+ Literals []Value

+ Name string

type Float

+ func (f Float) ToInt() (Int, error)

type OpCode

+ const OpArrayExpandElemNoPop

type Program

+ Packages []*CompiledPackage

+ func (p *Program) MainPackage() *CompiledPackage

type String

+ func (s String) ToInt() (Int, error)

+ type Writer interface

v0.4.0

Nov 4, 2022

v0.3.0

Aug 22, 2022

Changes in this version

+ var ErrDivByZero = errors.New("divide by zero")

+ var ErrOperationNotSupported = errors.New("operation not supported")

+ func MakeNonRecoverableError(err error) error

type Array

+ func (a *Array) Find(v Value) int

+ func (a *Array) Traits() Traits

type Bool

+ func (b Bool) Traits() Traits

type Closure

+ func (c *Closure) Traits() Traits

+ type CompiledPackage struct

+ MainFnNdx int

+ Metadata *meta.Metadata

+ Symbols map[string]PackageSymbol

type Emitter

+ func (e *Emitter) ToCompiledPackage() *CompiledPackage

+ type ExportRegistry interface

+ GetExport func(pkg, name string) Value

+ IsValidPackage func(pkg string) bool

+ type FallbackEvaluator interface

+ FallbackEvalOp func(op Op, left Value) (Value, error)

type Float

+ func (f Float) Traits() Traits

type Fn

+ func (f *Fn) Traits() Traits

type ILIterator

+ func (e *ILIterator) Traits() Traits

type Int

+ func (i Int) Traits() Traits

type NativeFn

+ func (f *NativeFn) Traits() Traits

type NativeIterator

+ func (i *NativeIterator) Traits() Traits

+ type NonRecoverableError struct

+ func (e *NonRecoverableError) Error() string

+ func (e *NonRecoverableError) Unwrap() error

type Object

+ func (o *Object) Clone() *Object

+ func (o *Object) Traits() Traits

type OpCode

+ const OpInitGlobal

+ const OpInitLocal

+ type Operable interface

+ EvalOp func(op Op, right Value) (Value, error)

+ type PackageSymbol struct

+ Index uint32

+ Type PackageSymbolType

+ type PackageSymbolType uint8

+ const PackageSymbolConst

+ const PackageSymbolFunc

+ const PackageSymbolInvalid

type Regex

+ func (r *Regex) Traits() Traits

type RuntimeError

+ Recoverable bool

+ func (e *RuntimeError) Traits() Traits

type String

+ func (s String) Traits() Traits

+ type Traits uint32

+ const TraitEq

+ const TraitNone

type Value

+ String func() string

+ Traits func() Traits

type ValueRef

+ func (r ValueRef) Traits() Traits

v0.2.0

May 21, 2022

Changes in this version

type NativeFn

+ func NewNativeFn(fn func(m *VM, args []Value, nRet int) ([]Value, error)) *NativeFn

+ func (f *NativeFn) Name() string

v0.1.0

Oct 29, 2021

Changes in this version

+ const CallArgCountMask

+ const CallExpandFlag

+ const CallPipelineFlag

+ var ErrCannotCallNil = errors.New("cannot evaluate function call because target is nil")

+ var ErrDivideByZero = errors.New("divide by zero")

+ var ErrIsNotIterable = errors.New("is not iterable")

+ var ErrIsNotReadable = errors.New("is not readable")

+ var False = Bool

+ var True = Bool

+ func CoerceToBool(v Value) bool

+ func IsIterable(v Value) bool

+ func IsReadable(v Value) bool

+ func ToString(v Value) string

+ func TypeName(v Value) string

+ type Array struct

+ func NewArray() *Array

+ func NewArrayWithSlice(s []Value) *Array

+ func (a *Array) Add(v Value)

+ func (a *Array) Back() Value

+ func (a *Array) EvalOp(op Op, operand Value) (Value, error)

+ func (a *Array) Get(index int) Value

+ func (a *Array) Index(key Value) (Value, error)

+ func (a *Array) IndexRef(key Value) (ValueRef, error)

+ func (a *Array) Len() int

+ func (a *Array) MakeIterator() Iterator

+ func (a *Array) Put(index int, v Value)

+ func (a *Array) Slice(b, e Value) (Value, error)

+ func (a *Array) String() string

+ func (a *Array) Type() string

+ type BaseValue struct

+ TypeName string

+ func (v BaseValue) EvalOp(op Op, operand Value) (Value, error)

+ func (v BaseValue) String() string

+ func (v BaseValue) Type() string

+ type Bool struct

+ func NewBool(v bool) Bool

+ func (b Bool) Bool() bool

+ func (b Bool) EvalOp(op Op, operand Value) (Value, error)

+ func (b Bool) String() string

+ func (b Bool) Type() string

+ type Callable interface

+ Call func(m *VM, args []Value, nRet int) ([]Value, error)

+ type CloseFn func(m *VM) error

+ type Closer interface

+ type Closure struct

+ func (c *Closure) Call(m *VM, args []Value, nRet int) ([]Value, error)

+ func (c *Closure) EvalOp(op Op, operand Value) (Value, error)

+ func (c *Closure) String() string

+ func (c *Closure) Type() string

+ type Emitter struct

+ func NewEmitter() *Emitter

+ func (e *Emitter) AddExternalFunc(fn NativeFn) int

+ func (e *Emitter) AddGlobalParam(name string, global int) bool

+ func (e *Emitter) AddLiteral(v Value) int

+ func (e *Emitter) AddString(s string) int

+ func (e *Emitter) Emit(pos token.Pos, op OpCode, operand1 uint32, operand2 uint16)

+ func (e *Emitter) EmitJump(pos token.Pos, op OpCode, label *Label, operand2 uint16)

+ func (e *Emitter) NewFn(name string) int

+ func (e *Emitter) NewLabel() *Label

+ func (e *Emitter) PopFn()

+ func (e *Emitter) PushFn(fn int)

+ func (e *Emitter) ResolveLabel(label *Label)

+ func (e *Emitter) SetFuncMinArgs(n int)

+ func (e *Emitter) SetGlobalCount(n int)

+ func (e *Emitter) ToProgram() *Program

+ type Float struct

+ func NewFloat(v float64) Float

+ func (f Float) EvalOp(op Op, operand Value) (Value, error)

+ func (f Float) Float64() float64

+ func (f Float) String() string

+ func (f Float) Type() string

+ type Fn struct

+ func (f *Fn) Call(m *VM, args []Value, nRet int) ([]Value, error)

+ func (f *Fn) EvalOp(op Op, operand Value) (Value, error)

+ func (f *Fn) String() string

+ func (f *Fn) Type() string

+ type FrameCrumb struct

+ func (c *FrameCrumb) IsZero() bool

+ type FrameInfo struct

+ Filename string

+ Func string

+ Line int

+ func (i FrameInfo) String() string

+ type ILIterator struct

+ func (e *ILIterator) EvalOp(op Op, operand Value) (Value, error)

+ func (e *ILIterator) String() string

+ func (e *ILIterator) Type() string

+ func (i *ILIterator) IterNRet() int

+ type Indexable interface

+ Index func(key Value) (Value, error)

+ IndexRef func(key Value) (ValueRef, error)

+ type Instr struct

+ type Int struct

+ func NewInt(v int64) Int

+ func (i Int) EvalOp(op Op, operand Value) (Value, error)

+ func (i Int) Int64() int64

+ func (i Int) String() string

+ func (i Int) Type() string

+ type InvalidUsageError struct

+ func NewInvalidUsageError(expected string) *InvalidUsageError

+ func (e *InvalidUsageError) Error() string

+ type Iterable interface

+ MakeIterator func() Iterator

+ type Iterator interface

+ IterNRet func() int

+ func MakeIterator(m *VM, v Value) (Iterator, error)

+ func NewIterator(extFn NativeFn, closeFn CloseFn, nret int) Iterator

+ type Label struct

+ type Location struct

+ type NativeFn func(m *VM, args []Value, nRet int) ([]Value, error)

+ func (f NativeFn) Call(m *VM, args []Value, nRet int) ([]Value, error)

+ func (f NativeFn) EvalOp(op Op, operand Value) (Value, error)

+ func (f NativeFn) String() string

+ func (f NativeFn) Type() string

+ type NativeIterator struct

+ func (i *NativeIterator) Close(m *VM) error

+ func (i *NativeIterator) Closed() bool

+ func (i *NativeIterator) EvalOp(op Op, operand Value) (Value, error)

+ func (i *NativeIterator) IterNRet() int

+ func (i *NativeIterator) String() string

+ func (i *NativeIterator) Type() string

+ type Object struct

+ func NewObject() *Object

+ func NewObjectWithCapacity(c int) *Object

+ func (o *Object) Delete(key Value)

+ func (o *Object) EvalOp(op Op, operand Value) (Value, error)

+ func (o *Object) ForEach(f func(k, v Value) bool)

+ func (o *Object) Get(k Value) (Value, bool)

+ func (o *Object) GetFirst() (key Value, val Value)

+ func (o *Object) GetNext(key Value) (nextKey Value, nextVal Value)

+ func (o *Object) Has(k Value) bool

+ func (o *Object) Index(k Value) (Value, error)

+ func (o *Object) IndexRef(k Value) (ValueRef, error)

+ func (o *Object) Len() int

+ func (o *Object) MakeIterator() Iterator

+ func (o *Object) Put(k, v Value)

+ func (o *Object) String() string

+ func (o *Object) Type() string

+ type Op byte

+ const OpAdd

+ const OpDiv

+ const OpEq

+ const OpGE

+ const OpGT

+ const OpLE

+ const OpLT

+ const OpMod

+ const OpMult

+ const OpNE

+ const OpSub

+ const OpUMinus

+ type OpCode byte

+ const OpArrayAppendNoPop

+ const OpBeginTry

+ const OpCall

+ const OpCaptureArg

+ const OpCaptureLocal

+ const OpDefer

+ const OpDup

+ const OpEndTry

+ const OpEvalBinOp

+ const OpInitCallFrame

+ const OpInitLiftedGlobal

+ const OpInitLiftedLocal

+ const OpIterRet

+ const OpIterYield

+ const OpJump

+ const OpJumpIfFalse

+ const OpJumpIfTrue

+ const OpLiftArg

+ const OpLoadArg

+ const OpLoadArgDeref

+ const OpLoadArgRef

+ const OpLoadCapture

+ const OpLoadCaptureRef

+ const OpLoadFn

+ const OpLoadGlobal

+ const OpLoadGlobalDeref

+ const OpLoadGlobalRef

+ const OpLoadLiteral

+ const OpLoadLocal

+ const OpLoadLocalDeref

+ const OpLoadLocalRef

+ const OpLoadNativeFn

+ const OpMakeIter

+ const OpNewArray

+ const OpNewBool

+ const OpNewClosure

+ const OpNewInt

+ const OpNewIter

+ const OpNewObject

+ const OpNext

+ const OpNil

+ const OpNop

+ const OpNot

+ const OpObjectGet

+ const OpObjectGetRef

+ const OpObjectPutNoPop

+ const OpPop

+ const OpRet

+ const OpSlice

+ const OpStore

+ const OpSwap

+ const OpThrow

+ const OpUnaryMinus

+ type Param struct

+ type Program struct

+ Metadata *meta.Metadata

+ type Readable interface

+ MakeReader func() Reader

+ type Reader interface

+ func MakeReader(vm *VM, v Value) (Reader, error)

+ type Regex struct

+ func NewRegex(r *regexp.Regexp) *Regex

+ func (r *Regex) EvalOp(op Op, operand Value) (Value, error)

+ func (r *Regex) String() string

+ func (r *Regex) Type() string

+ type RuntimeError struct

+ Err error

+ ErrValue Value

+ Stack []FrameInfo

+ func (e *RuntimeError) Error() string

+ func (e *RuntimeError) EvalOp(op Op, operand Value) (Value, error)

+ func (e *RuntimeError) Index(k Value) (Value, error)

+ func (e *RuntimeError) IndexRef(k Value) (ValueRef, error)

+ func (e *RuntimeError) Message() string

+ func (e *RuntimeError) String() string

+ func (e *RuntimeError) Type() string

+ func (e *RuntimeError) Unwrap() error

+ type String struct

+ func NewString(v string) String

+ func (s String) EvalOp(op Op, operand Value) (Value, error)

+ func (s String) EvalUnaryMinus() (Value, error)

+ func (s String) Index(key Value) (Value, error)

+ func (s String) IndexRef(key Value) (ValueRef, error)

+ func (s String) Len() int

+ func (s String) MakeIterator() Iterator

+ func (s String) MakeReader() Reader

+ func (s String) Slice(b, e Value) (Value, error)

+ func (s String) String() string

+ func (s String) Type() string

+ type VM struct

+ func NewVM(prog *Program) *VM

+ func (m *VM) Block(f func(ctx context.Context))

+ func (m *VM) Call(callable Value, args []Value, nret int) ([]Value, error)

+ func (m *VM) Context() context.Context

+ func (m *VM) GetCallerArgs() []Value

+ func (m *VM) GetCallerNArg() int

+ func (m *VM) GetFrameCrumb(n int) FrameCrumb

+ func (m *VM) GetFrameInfo(crumb FrameCrumb) FrameInfo

+ func (m *VM) GetStackInfo() []FrameInfo

+ func (m *VM) GetUserData(key interface{}) interface{}

+ func (m *VM) IsCallerPipeline() bool

+ func (m *VM) IsPipeline() bool

+ func (m *VM) IterClose(iter Iterator) error

+ func (m *VM) IterNext(iter Iterator, nret int) ([]Value, error)

+ func (m *VM) PopContext() context.Context

+ func (m *VM) PushContext(ctx context.Context)

+ func (m *VM) RegisterCloser(c Closer)

+ func (m *VM) Run(args []Value) error

+ func (m *VM) SetParam(n string, v Value) error

+ func (m *VM) SetUserData(key, value interface{})

+ func (m *VM) ShuttingDown() bool

+ func (m *VM) SignalError(err error)

+ func (m *VM) StartCoroutine(callable Value) error

+ func (m *VM) UnregisterCloser(c Closer)

+ type Value interface

+ EvalOp func(op Op, operand Value) (Value, error)

+ Type func() string

+ func EvalOp(op Op, operand1, operand2 Value) (Value, error)

+ type ValueRef struct

+ Ref *Value

+ func NewValueRef(ref *Value) ValueRef

+ func (r ValueRef) EvalOp(op Op, operand Value) (Value, error)

+ func (r ValueRef) Refo() *Value

+ func (r ValueRef) String() string

+ func (r ValueRef) Type() string

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