eval

package
v1.0.0-rc.1 Latest Latest
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 Go to latest Published: May 1, 2026 License: Apache-2.0 Imports: 14 Imported by: 0

Documentation

Overview

Package eval builds JavaScript evaluation helpers for the CDP HTML driver.

Index

Constants

View Source 
const (
	EmptyExecutionContextID = cdpruntime.ExecutionContextID(-1)
	EmptyObjectID           = cdpruntime.RemoteObjectID("")
)

Variables

This section is empty.

Functions

This section is empty.

Types

type CompiledFunction 

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

func CF 

func CF(id cdpruntime.ScriptID, src *Function) *CompiledFunction

type Function 

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

func F 

func F(exp string) *Function

func (*Function) AsAnonymous 

func (fn *Function) AsAnonymous() *Function

func (*Function) AsAsync 

func (fn *Function) AsAsync() *Function

func (*Function) AsNamed 

func (fn *Function) AsNamed(name string) *Function

func (*Function) AsSync 

func (fn *Function) AsSync() *Function

func (*Function) CallOn 

func (fn *Function) CallOn(id cdpruntime.RemoteObjectID) *Function

func (*Function) Err 

func (fn *Function) Err() error

Err returns the first error encountered while building the function, or nil if none. Callers that consume a Function (eval / compile paths) should check this before making network calls.

func (*Function) Length 

func (fn *Function) Length() int

func (*Function) String 

func (fn *Function) String() string

func (*Function) WithArg 

func (fn *Function) WithArg(value any) *Function

func (*Function) WithArgRef 

func (fn *Function) WithArgRef(id cdpruntime.RemoteObjectID) *Function

func (*Function) WithArgRemoteValue 

func (fn *Function) WithArgRemoteValue(value RemoteValue) *Function

func (*Function) WithArgSelector 

func (fn *Function) WithArgSelector(selector drivers.QuerySelector) *Function

func (*Function) WithArgValue 

func (fn *Function) WithArgValue(value runtime.Value) *Function

type FunctionArguments 

type FunctionArguments []cdpruntime.CallArgument

func (FunctionArguments) MarshalZerologArray 

func (args FunctionArguments) MarshalZerologArray(a *zerolog.Array)

type RemoteClassName 

type RemoteClassName string
const (
	UnknownClassName  RemoteClassName = ""
	DocumentClassName RemoteClassName = "HTMLDocument"
)

List of supported remote classses

func ToRemoteClassName 

func ToRemoteClassName(ref cdpruntime.RemoteObject) RemoteClassName

type RemoteObjectType 

type RemoteObjectType string
const (
	UnknownObjectType     RemoteObjectType = ""
	NullObjectType        RemoteObjectType = "null"
	UndefinedObjectType   RemoteObjectType = "undefined"
	ArrayObjectType       RemoteObjectType = "array"
	NodeObjectType        RemoteObjectType = "node"
	RegexpObjectType      RemoteObjectType = "regexp"
	DateObjectType        RemoteObjectType = "date"
	MapObjectType         RemoteObjectType = "map"
	SetObjectType         RemoteObjectType = "set"
	WeakMapObjectType     RemoteObjectType = "weakmap"
	WeakSetObjectType     RemoteObjectType = "weakset"
	IteratorObjectType    RemoteObjectType = "iterator"
	GeneratorObjectType   RemoteObjectType = "generator"
	ErrorObjectType       RemoteObjectType = "error"
	ProxyObjectType       RemoteObjectType = "proxy"
	PromiseObjectType     RemoteObjectType = "promise"
	TypedArrayObjectType  RemoteObjectType = "typedarray"
	ArrayBufferObjectType RemoteObjectType = "arraybuffer"
	DataViewObjectType    RemoteObjectType = "dataview"
)

List of possible remote object types

func ToRemoteObjectType 

func ToRemoteObjectType(ref cdpruntime.RemoteObject) RemoteObjectType

type RemoteType 

type RemoteType string
const (
	UnknownType   RemoteType = ""
	UndefinedType RemoteType = "undefined"
	StringType    RemoteType = "string"
	NumberType    RemoteType = "number"
	BooleanType   RemoteType = "boolean"
	SymbolType    RemoteType = "symbol"
	BigintType    RemoteType = "bigint"
	ObjectType    RemoteType = "object"
)

List of possible remote types "object", "function", "undefined", "string", "number", "boolean", "symbol", "bigint"

func ToRemoteType 

func ToRemoteType(ref cdpruntime.RemoteObject) RemoteType

type RemoteValue 

type RemoteValue interface {
	RemoteID() cdpruntime.RemoteObjectID
}

type Resolver 

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

func NewResolver 

func NewResolver(runtime cdp.Runtime, frameID page.FrameID) *Resolver

func (*Resolver) SetLoader 

func (r *Resolver) SetLoader(loader ValueLoader) *Resolver

func (*Resolver) ToElement 

func (r *Resolver) ToElement(ctx context.Context, ref cdpruntime.RemoteObject) (drivers.HTMLElement, error)

func (*Resolver) ToProperties 

func (r *Resolver) ToProperties(
	ctx context.Context,
	id cdpruntime.RemoteObjectID,
) (*runtime.Array, error)

func (*Resolver) ToProperty 

func (r *Resolver) ToProperty(
	ctx context.Context,
	id cdpruntime.RemoteObjectID,
	propName string,
) (runtime.Value, error)

func (*Resolver) ToValue 

func (r *Resolver) ToValue(ctx context.Context, ref cdpruntime.RemoteObject) (runtime.Value, error)

type ReturnType 

type ReturnType int
const (
	ReturnNothing ReturnType = iota
	ReturnValue
	ReturnRef
)

func (ReturnType) String 

func (rt ReturnType) String() string

type Runtime 

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

func Create 

func Create(
	ctx context.Context,
	logger zerolog.Logger,
	client *cdp.Client,
	frameID page.FrameID,
) (*Runtime, error)

func New 

func New(
	logger zerolog.Logger,
	client *cdp.Client,
	frameID page.FrameID,
	contextID cdpruntime.ExecutionContextID,
) *Runtime

func (*Runtime) Call 

func (rt *Runtime) Call(ctx context.Context, fn *CompiledFunction) error

func (*Runtime) CallElement 

func (rt *Runtime) CallElement(ctx context.Context, fn *CompiledFunction) (drivers.HTMLElement, error)

func (*Runtime) CallElements 

func (rt *Runtime) CallElements(ctx context.Context, fn *CompiledFunction) (runtime.List, error)

func (*Runtime) CallRef 

func (rt *Runtime) CallRef(ctx context.Context, fn *CompiledFunction) (cdpruntime.RemoteObject, error)

func (*Runtime) CallValue 

func (rt *Runtime) CallValue(ctx context.Context, fn *CompiledFunction) (runtime.Value, error)

func (*Runtime) Compile 

func (rt *Runtime) Compile(ctx context.Context, fn *Function) (*CompiledFunction, error)

func (*Runtime) ContextID 

func (rt *Runtime) ContextID() cdpruntime.ExecutionContextID

func (*Runtime) Eval 

func (rt *Runtime) Eval(ctx context.Context, fn *Function) error

func (*Runtime) EvalElement 

func (rt *Runtime) EvalElement(ctx context.Context, fn *Function) (runtime.Value, error)

func (*Runtime) EvalElements 

func (rt *Runtime) EvalElements(ctx context.Context, fn *Function) (*runtime.Array, error)

func (*Runtime) EvalRef 

func (rt *Runtime) EvalRef(ctx context.Context, fn *Function) (cdpruntime.RemoteObject, error)

func (*Runtime) EvalValue 

func (rt *Runtime) EvalValue(ctx context.Context, fn *Function) (runtime.Value, error)

func (*Runtime) SetLoader 

func (rt *Runtime) SetLoader(loader ValueLoader) *Runtime

type ValueLoader 

type ValueLoader interface {
	Load(
		ctx context.Context,
		frameID page.FrameID,
		remoteType RemoteObjectType,
		remoteClass RemoteClassName,
		id cdpruntime.RemoteObjectID,
	) (runtime.Value, error)
}

type ValueLoaderFn 

type ValueLoaderFn func(
	ctx context.Context,
	frameID page.FrameID,
	remoteType RemoteObjectType,
	remoteClass RemoteClassName,
	id cdpruntime.RemoteObjectID,
) (runtime.Value, error)

func (ValueLoaderFn) Load 

func (f ValueLoaderFn) Load(
	ctx context.Context,
	frameID page.FrameID,
	remoteType RemoteObjectType,
	remoteClass RemoteClassName,
	id cdpruntime.RemoteObjectID,
) (runtime.Value, error)

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