add MustGetRuntimeContextValue and changed to use it

cloudflare/d1/connector.go

@@ -19,7 +19,7 @@ var (
 // OpenConnector returns Connector of D1.
 // This method checks DB existence. If DB was not found, this function returns error.
 func OpenConnector(ctx context.Context, name string) (driver.Connector, error) {
-	v := cfruntimecontext.GetRuntimeContextEnv(ctx).Get(name)
+	v := cfruntimecontext.MustGetRuntimeContextEnv(ctx).Get(name)
 	if v.IsUndefined() {
 		return nil, ErrDatabaseNotFound
 	}

cloudflare/dostub.go

@@ -21,7 +21,7 @@ type DurableObjectNamespace struct {
 // This binding must be defined in the `wrangler.toml` file. The method will
 // return an `error` when there is no binding defined by `varName`.
 func NewDurableObjectNamespace(ctx context.Context, varName string) (*DurableObjectNamespace, error) {
-	inst := cfruntimecontext.GetRuntimeContextEnv(ctx).Get(varName)
+	inst := cfruntimecontext.MustGetRuntimeContextEnv(ctx).Get(varName)
 	if inst.IsUndefined() {
 		return nil, fmt.Errorf("%s is undefined", varName)
 	}

cloudflare/env.go

@@ -11,12 +11,12 @@ import (
 //   - https://developers.cloudflare.com/workers/platform/environment-variables/
 //   - This function panics when a runtime context is not found.
 func Getenv(ctx context.Context, name string) string {
-	return cfruntimecontext.GetRuntimeContextEnv(ctx).Get(name).String()
+	return cfruntimecontext.MustGetRuntimeContextEnv(ctx).Get(name).String()
 }
 
 // GetBinding gets a value of an environment binding.
 //   - https://developers.cloudflare.com/workers/platform/bindings/about-service-bindings/
 //   - This function panics when a runtime context is not found.
 func GetBinding(ctx context.Context, name string) js.Value {
-	return cfruntimecontext.GetRuntimeContextEnv(ctx).Get(name)
+	return cfruntimecontext.MustGetRuntimeContextEnv(ctx).Get(name)
 }

cloudflare/fetchevent.go

@@ -12,7 +12,7 @@ import (
 // It accepts an asynchronous task which the Workers runtime will execute before the handler terminates but without blocking the response.
 // see: https://developers.cloudflare.com/workers/runtime-apis/fetch-event/#waituntil
 func WaitUntil(ctx context.Context, task func()) {
-	exCtx := cfruntimecontext.GetExecutionContext(ctx)
+	exCtx := cfruntimecontext.MustGetExecutionContext(ctx)
 	exCtx.Call("waitUntil", jsutil.NewPromise(js.FuncOf(func(this js.Value, pArgs []js.Value) any {
 		resolve := pArgs[0]
 		go func() {
@@ -27,7 +27,7 @@ func WaitUntil(ctx context.Context, task func()) {
 // Instead, the request forwards to the origin server as if it had not gone through the worker.
 // see: https://developers.cloudflare.com/workers/runtime-apis/fetch-event/#passthroughonexception
 func PassThroughOnException(ctx context.Context) {
-	exCtx := cfruntimecontext.GetExecutionContext(ctx)
+	exCtx := cfruntimecontext.MustGetExecutionContext(ctx)
 	jsutil.AwaitPromise(jsutil.NewPromise(js.FuncOf(func(this js.Value, pArgs []js.Value) any {
 		resolve := pArgs[0]
 		go func() {

cloudflare/internal/cfruntimecontext/cfruntimecontext.go

@@ -21,19 +21,27 @@ import (
  * - see: https://github.com/cloudflare/workers-types/blob/c8d9533caa4415c2156d2cf1daca75289d01ae70/index.d.ts#LL564
  */
 
-// GetRuntimeContextEnv gets object which holds environment variables bound to Cloudflare worker.
+// MustGetRuntimeContextEnv gets object which holds environment variables bound to Cloudflare worker.
 // - see: https://github.com/cloudflare/workers-types/blob/c8d9533caa4415c2156d2cf1daca75289d01ae70/index.d.ts#L566
-func GetRuntimeContextEnv(ctx context.Context) js.Value {
-	runtimeCtxValue := runtimecontext.MustExtract(ctx)
-	return runtimeCtxValue.Get("env")
+func MustGetRuntimeContextEnv(ctx context.Context) js.Value {
+	return MustGetRuntimeContextValue(ctx, "env")
 }
 
-// GetExecutionContext gets ExecutionContext object from context.
+// MustGetExecutionContext gets ExecutionContext object from context.
 // - see: https://github.com/cloudflare/workers-types/blob/c8d9533caa4415c2156d2cf1daca75289d01ae70/index.d.ts#L567
 // - see also: https://github.com/cloudflare/workers-types/blob/c8d9533caa4415c2156d2cf1daca75289d01ae70/index.d.ts#L554
-func GetExecutionContext(ctx context.Context) js.Value {
-	runtimeCtxValue := runtimecontext.MustExtract(ctx)
-	return runtimeCtxValue.Get("ctx")
+func MustGetExecutionContext(ctx context.Context) js.Value {
+	return MustGetRuntimeContextValue(ctx, "ctx")
+}
+
+// MustGetRuntimeContextValue gets value for specified key from RuntimeContext.
+// - if the value is undefined, this function panics.
+func MustGetRuntimeContextValue(ctx context.Context, key string) js.Value {
+	val, err := GetRuntimeContextValue(ctx, key)
+	if err != nil {
+		panic(err)
+	}
+	return val
 }
 
 var ErrValueNotFound = errors.New("execution context value for specified key not found")

cloudflare/kv.go

@@ -23,7 +23,7 @@ type KVNamespace struct {
 //   - if the given variable name doesn't exist on runtime context, returns error.
 //   - This function panics when a runtime context is not found.
 func NewKVNamespace(ctx context.Context, varName string) (*KVNamespace, error) {
-	inst := cfruntimecontext.GetRuntimeContextEnv(ctx).Get(varName)
+	inst := cfruntimecontext.MustGetRuntimeContextEnv(ctx).Get(varName)
 	if inst.IsUndefined() {
 		return nil, fmt.Errorf("%s is undefined", varName)
 	}

cloudflare/r2bucket.go

@@ -23,7 +23,7 @@ type R2Bucket struct {
 //   - if the given variable name doesn't exist on runtime context, returns error.
 //   - This function panics when a runtime context is not found.
 func NewR2Bucket(ctx context.Context, varName string) (*R2Bucket, error) {
-	inst := cfruntimecontext.GetRuntimeContextEnv(ctx).Get(varName)
+	inst := cfruntimecontext.MustGetRuntimeContextEnv(ctx).Get(varName)
 	if inst.IsUndefined() {
 		return nil, fmt.Errorf("%s is undefined", varName)
 	}