diff --git a/gopls/go.mod b/gopls/go.mod
index 93c9555855d..3f0aa668a51 100644
--- a/gopls/go.mod
+++ b/gopls/go.mod
@@ -1,10 +1,10 @@
 module golang.org/x/tools/gopls
 
-go 1.19
+go 1.23
 
 require (
 	github.com/google/go-cmp v0.6.0
-	github.com/goplus/gogen v1.20.8
+	github.com/goplus/gogen v1.21.0
 	github.com/goplus/mod v0.19.0
 	github.com/goplus/xgo v1.6.2
 	github.com/jba/printsrc v0.2.2
diff --git a/gopls/go.sum b/gopls/go.sum
index ff222bcd45d..fe54df55546 100644
--- a/gopls/go.sum
+++ b/gopls/go.sum
@@ -1,10 +1,12 @@
 github.com/BurntSushi/toml v1.2.1 h1:9F2/+DoOYIOksmaJFPw1tGFy1eDnIJXg+UHjuD8lTak=
 github.com/BurntSushi/toml v1.2.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
 github.com/client9/misspell v0.3.4 h1:ta993UF76GwbvJcIo3Y68y/M3WxlpEHPWIGDkJYwzJI=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/frankban/quicktest v1.14.3 h1:FJKSZTDHjyhriyC81FLQ0LY93eSai0ZyR/ZIkd3ZUKE=
+github.com/frankban/quicktest v1.14.3/go.mod h1:mgiwOwqx65TmIk1wJ6Q7wvnVMocbUorkibMOrVTHZps=
 github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
@@ -12,8 +14,8 @@ github.com/google/safehtml v0.1.0 h1:EwLKo8qawTKfsi0orxcQAZzu07cICaBeFMegAU9eaT8
 github.com/google/safehtml v0.1.0/go.mod h1:L4KWwDsUJdECRAEpZoBn3O64bQaywRscowZjJAzjHnU=
 github.com/goplus/cobra v1.9.12/go.mod h1:p4LhfNJDKEpiGjGiNn0crUXL5dUPA5DX2ztYpEJR34E=
 github.com/goplus/gogen v1.20.2/go.mod h1:87ZJD1mdljXx2pkvBrMGynGUz6m08brj9p6xhb5aq2Y=
-github.com/goplus/gogen v1.20.8 h1:ENpppvJESrI2JYe3hdHX1vpKEEh6cLw1Ts5DQ1juNM0=
-github.com/goplus/gogen v1.20.8/go.mod h1:87ZJD1mdljXx2pkvBrMGynGUz6m08brj9p6xhb5aq2Y=
+github.com/goplus/gogen v1.21.0 h1:QhfZmF0TMta9t8aLRhDIhSgrJBjW2U6O/05vTNdW2tM=
+github.com/goplus/gogen v1.21.0/go.mod h1:Y7ulYW3wonQ3d9er00b0uGFEV/IUZa6okWJZh892ACQ=
 github.com/goplus/lib v0.3.1/go.mod h1:SgJv3oPqLLHCu0gcL46ejOP3x7/2ry2Jtxu7ta32kp0=
 github.com/goplus/mod v0.19.0 h1:VwTawpScUFXozTEhtA4WsdhG/5pa12gJeAK4EGOgM/I=
 github.com/goplus/mod v0.19.0/go.mod h1:4HcnqpUHXFHWRTJXQgiHrFbvy0j3K/OEzpFh5KFYLRM=
@@ -26,14 +28,17 @@ github.com/jba/templatecheck v0.7.0 h1:wjTb/VhGgSFeim5zjWVePBdaMo28X74bGLSABZV+z
 github.com/jba/templatecheck v0.7.0/go.mod h1:n1Etw+Rrw1mDDD8dDRsEKTwMZsJ98EkktgNJC6wLUGo=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
+github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/qiniu/x v1.16.0 h1:W2VOecyIT3Uxwjm6vJinUR7G3gpwgUgHZA9OpeHArdE=
 github.com/qiniu/x v1.16.0/go.mod h1:AiovSOCaRijaf3fj+0CBOpR1457pn24b0Vdb1JpwhII=
 github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
+github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
 github.com/sergi/go-diff v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0=
 github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -85,5 +90,6 @@ honnef.co/go/tools v0.4.7/go.mod h1:+rnGS1THNh8zMwnd2oVOTL9QF6vmfyG6ZXBULae2uc0=
 mvdan.cc/gofumpt v0.4.0 h1:JVf4NN1mIpHogBj7ABpgOyZc65/UUOkKQFkoURsz4MM=
 mvdan.cc/gofumpt v0.4.0/go.mod h1:PljLOHDeZqgS8opHRKLzp2It2VBuSdteAgqUfzMTxlQ=
 mvdan.cc/unparam v0.0.0-20211214103731-d0ef000c54e5 h1:Jh3LAeMt1eGpxomyu3jVkmVZWW2MxZ1qIIV2TZ/nRio=
+mvdan.cc/unparam v0.0.0-20211214103731-d0ef000c54e5/go.mod h1:b8RRCBm0eeiWR8cfN88xeq2G5SG3VKGO+5UPWi5FSOY=
 mvdan.cc/xurls/v2 v2.5.0 h1:lyBNOm8Wo71UknhUs4QTFUNNMyxy2JEIaKKo0RWOh+8=
 mvdan.cc/xurls/v2 v2.5.0/go.mod h1:yQgaGQ1rFtJUzkmKiHYSSfuQxqfYmd//X6PxvholpeE=