230 lines
7 KiB
Go
230 lines
7 KiB
Go
package context
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import (
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"github.com/yaoapp/gou/runtime/v8/bridge"
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traceJsapi "github.com/yaoapp/yao/trace/jsapi"
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"rogchap.com/v8go"
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)
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// JsValue return the JavaScript value of the context
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func (ctx *Context) JsValue(v8ctx *v8go.Context) (*v8go.Value, error) {
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return ctx.NewObject(v8ctx)
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}
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// NewObject Create a new JavaScript object from the context
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func (ctx *Context) NewObject(v8ctx *v8go.Context) (*v8go.Value, error) {
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jsObject := v8go.NewObjectTemplate(v8ctx.Isolate())
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// Set internal field count to 1 to store the goValueID
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// Internal fields are not accessible from JavaScript, providing better security
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jsObject.SetInternalFieldCount(1)
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// Register context in global bridge registry for efficient Go object retrieval
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// The goValueID will be stored in internal field (index 0) after instance creation
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goValueID := bridge.RegisterGoObject(ctx)
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// Set release function that will be called when JavaScript object is released
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jsObject.Set("__release", ctx.objectRelease(v8ctx.Isolate(), goValueID))
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// Set primitive fields in template
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jsObject.Set("chat_id", ctx.ChatID)
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jsObject.Set("assistant_id", ctx.AssistantID)
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jsObject.Set("connector", ctx.Connector)
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if ctx.Search != nil {
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jsObject.Set("search", *ctx.Search)
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}
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jsObject.Set("retry", ctx.Retry)
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jsObject.Set("retry_times", uint32(ctx.RetryTimes))
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jsObject.Set("locale", ctx.Locale)
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jsObject.Set("theme", ctx.Theme)
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jsObject.Set("referer", ctx.Referer)
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jsObject.Set("accept", string(ctx.Accept))
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jsObject.Set("route", ctx.Route)
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// Set methods
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jsObject.Set("Trace", ctx.traceMethod(v8ctx.Isolate()))
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jsObject.Set("Send", ctx.sendMethod(v8ctx.Isolate()))
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jsObject.Set("SendGroup", ctx.sendGroupMethod(v8ctx.Isolate()))
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jsObject.Set("Flush", ctx.flushMethod(v8ctx.Isolate()))
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// Create instance
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instance, err := jsObject.NewInstance(v8ctx)
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if err != nil {
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// Clean up: release from global registry if instance creation failed
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bridge.ReleaseGoObject(goValueID)
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return nil, err
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}
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// Store the goValueID in internal field (index 0)
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// This is not accessible from JavaScript, providing better security
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obj, err := instance.Value.AsObject()
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if err != nil {
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bridge.ReleaseGoObject(goValueID)
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return nil, err
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}
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err = obj.SetInternalField(0, goValueID)
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if err != nil {
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bridge.ReleaseGoObject(goValueID)
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return nil, err
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}
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// Set complex objects (maps, arrays) after instance creation using bridge
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// Args array
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if ctx.Args != nil {
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argsVal, err := bridge.JsValue(v8ctx, ctx.Args)
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if err == nil {
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obj.Set("args", argsVal)
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argsVal.Release() // Release Go-side Persistent handle, V8 internal reference remains
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}
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}
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// Client object
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clientData := map[string]interface{}{
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"type": ctx.Client.Type,
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"user_agent": ctx.Client.UserAgent,
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"ip": ctx.Client.IP,
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}
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clientVal, err := bridge.JsValue(v8ctx, clientData)
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if err == nil {
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obj.Set("client", clientVal)
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clientVal.Release() // Release Go-side Persistent handle, V8 internal reference remains
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}
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// Metadata object
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if ctx.Metadata != nil {
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metadataVal, err := bridge.JsValue(v8ctx, ctx.Metadata)
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if err == nil {
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obj.Set("metadata", metadataVal)
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metadataVal.Release() // Release Go-side Persistent handle, V8 internal reference remains
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}
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}
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// Authorized object
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if ctx.Authorized != nil {
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authorizedVal, err := bridge.JsValue(v8ctx, ctx.Authorized)
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if err == nil {
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obj.Set("authorized", authorizedVal)
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authorizedVal.Release() // Release Go-side Persistent handle, V8 internal reference remains
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}
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}
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return instance.Value, nil
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}
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// objectRelease releases the Go object from the global bridge registry
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// It retrieves the goValueID from internal field (index 0) and releases the Go object
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func (ctx *Context) objectRelease(iso *v8go.Isolate, goValueID string) *v8go.FunctionTemplate {
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return v8go.NewFunctionTemplate(iso, func(info *v8go.FunctionCallbackInfo) *v8go.Value {
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// Get the context object (this)
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thisObj, err := info.This().AsObject()
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if err == nil && thisObj.InternalFieldCount() > 0 {
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// Get goValueID from internal field (index 0)
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goValueID := thisObj.GetInternalField(0)
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if goValueID != nil && goValueID.IsString() {
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// Release from global bridge registry
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bridge.ReleaseGoObject(goValueID.String())
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}
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}
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return v8go.Undefined(info.Context().Isolate())
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})
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}
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func (ctx *Context) traceMethod(iso *v8go.Isolate) *v8go.FunctionTemplate {
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return v8go.NewFunctionTemplate(iso, func(info *v8go.FunctionCallbackInfo) *v8go.Value {
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v8ctx := info.Context()
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// Get trace manager (lazy initialization)
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manager, err := ctx.Trace()
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if err != nil {
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return bridge.JsException(v8ctx, err.Error())
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}
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// Get trace ID
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traceID := ""
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if ctx.Stack != nil {
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traceID = ctx.Stack.TraceID
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}
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// Create JavaScript Trace object directly
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// The Trace object will be used within JavaScript and its __release will be called
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// when the JavaScript value is released via defer bridge.FreeJsValue(jsRes)
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traceObj, err := traceJsapi.NewTraceObject(v8ctx, traceID, manager)
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if err != nil {
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return bridge.JsException(v8ctx, err.Error())
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}
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return traceObj
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})
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}
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// sendMethod implements ctx.Send(message)
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// Usage: ctx.Send({ type: "text", props: { content: "Hello" } })
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// Usage: ctx.Send("Hello") // shorthand for text message
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func (ctx *Context) sendMethod(iso *v8go.Isolate) *v8go.FunctionTemplate {
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return v8go.NewFunctionTemplate(iso, func(info *v8go.FunctionCallbackInfo) *v8go.Value {
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v8ctx := info.Context()
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args := info.Args()
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if len(args) < 1 {
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return bridge.JsException(v8ctx, "Send requires a message argument")
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}
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// Parse message argument
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msg, err := parseMessage(v8ctx, args[0])
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if err != nil {
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return bridge.JsException(v8ctx, "invalid message: "+err.Error())
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}
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// Call ctx.Send
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if err := ctx.Send(msg); err != nil {
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return bridge.JsException(v8ctx, "Send failed: "+err.Error())
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}
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return v8go.Undefined(iso)
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})
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}
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// sendGroupMethod implements ctx.SendGroup(group)
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// Usage: ctx.SendGroup({ id: "group1", messages: [...] })
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func (ctx *Context) sendGroupMethod(iso *v8go.Isolate) *v8go.FunctionTemplate {
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return v8go.NewFunctionTemplate(iso, func(info *v8go.FunctionCallbackInfo) *v8go.Value {
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v8ctx := info.Context()
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args := info.Args()
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if len(args) < 1 {
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return bridge.JsException(v8ctx, "SendGroup requires a group argument")
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}
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// Parse group argument
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group, err := parseGroup(v8ctx, args[0])
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if err != nil {
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return bridge.JsException(v8ctx, "invalid group: "+err.Error())
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}
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// Call ctx.SendGroup
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if err := ctx.SendGroup(group); err != nil {
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return bridge.JsException(v8ctx, "SendGroup failed: "+err.Error())
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}
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return v8go.Undefined(iso)
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})
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}
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// flushMethod implements ctx.Flush()
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// Usage: ctx.Flush()
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func (ctx *Context) flushMethod(iso *v8go.Isolate) *v8go.FunctionTemplate {
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return v8go.NewFunctionTemplate(iso, func(info *v8go.FunctionCallbackInfo) *v8go.Value {
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v8ctx := info.Context()
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// Call ctx.Flush
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if err := ctx.Flush(); err != nil {
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return bridge.JsException(v8ctx, "Flush failed: "+err.Error())
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}
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return v8go.Undefined(iso)
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})
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}
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