feat: promote rawgo from experiment to core feature (#905)

Author: joerdav

cfg/cfg.go

@@ -6,10 +6,7 @@ import (
 	"strings"
 )
 
-type Flags struct {
-	// RawGo will enable the support of arbibrary Go code in templates.
-	RawGo bool
-}
+type Flags struct{}
 
 var Experiment = parse()
 
@@ -19,7 +16,5 @@ func parse() *Flags {
 		m[strings.ToLower(f)] = true
 	}
 
-	return &Flags{
-		RawGo: m["rawgo"],
-	}
+	return &Flags{}
 }

docs/docs/03-syntax-and-usage/09-raw-go.md

@@ -1,13 +1,5 @@
 # Raw Go
 
-:::caution
-This page describes functionality that is experimental, not enabled by default, and may change or be removed in future versions.
-
-To enable this feature run the generation step with the `rawgo` experiment flag: `TEMPL_EXPERIMENT=rawgo templ generate`
-
-You will also need to set the `TEMPL_EXPERIMENT=rawgo` environment variable at your system level or within your editor to enable LSP behavior.
-:::
-
 For some more advanced use cases it may be useful to write Go code statements in your template.
 
 Use the `{{ ... }}` syntax for this.

parser/v2/format_test.go

@@ -5,17 +5,11 @@ import (
 	"path/filepath"
 	"testing"
 
-	"github.com/a-h/templ/cfg"
 	"github.com/google/go-cmp/cmp"
 	"golang.org/x/tools/txtar"
 )
 
 func TestFormatting(t *testing.T) {
-	oldFlags := cfg.Experiment
-	t.Cleanup(func() {
-		cfg.Experiment = oldFlags
-	})
-	cfg.Experiment.RawGo = true
 	files, _ := filepath.Glob("formattestdata/*.txt")
 	if len(files) == 0 {
 		t.Errorf("no test files found")

parser/v2/gocodeparser.go

@@ -2,14 +2,10 @@ package parser
 
 import (
 	"github.com/a-h/parse"
-	"github.com/a-h/templ/cfg"
 	"github.com/a-h/templ/parser/v2/goexpression"
 )
 
 var goCode = parse.Func(func(pi *parse.Input) (n Node, ok bool, err error) {
-	if !cfg.Experiment.RawGo {
-		return
-	}
 	// Check the prefix first.
 	if _, ok, err = parse.Or(parse.String("{{ "), parse.String("{{")).Parse(pi); err != nil || !ok {
 		return

parser/v2/gocodeparser_test.go

@@ -4,17 +4,10 @@ import (
 	"testing"
 
 	"github.com/a-h/parse"
-	"github.com/a-h/templ/cfg"
 	"github.com/google/go-cmp/cmp"
 )
 
 func TestGoCodeParser(t *testing.T) {
-	flagVal := cfg.Experiment.RawGo
-	cfg.Experiment.RawGo = true
-	defer func() {
-		cfg.Experiment.RawGo = flagVal
-	}()
-
 	tests := []struct {
 		name     string
 		input    string