reflect: embed internal/reflectlite types

[ydnar]

This PR is an alternative to #4774, using type aliases and struct embedding in lieu of go:linkname.

• Package reflect now depends on package internal/reflectlite, reversing the existing dependency.
• Adds Go 1.24 iter.Seq methods to reflect.
  • Adds fix for reflect: Value.Seq iteration value types not matching the type of given int types golang/go#71905.
• Fixes the circular dependency between package runtime and reflect introduced via package iter in Go 1.24.

Note

An alternative to this PR could implement the common functionality in reflect and reflectlite in a new, third package (e.g. internal/tinyreflect).

[aykevl]

I have not done a full review yet.
I do see that this approach results in a much larger binary size increase than #4774. I wonder why? Could be because of Seq/Seq2 but hard to say without testing.

[ydnar]

@aykevl thanks for the review. What’s the best way to benchmark binary size changes?

[deadprogram]

I do see that this approach results in a much larger binary size increase than #4774.

Looks like that last commit of @ydnar got rid of the size change.

@aykevl looks like this PR is ready for review.

[aykevl]

I do see that this approach results in a much larger binary size increase than #4774.

Looks like that last commit of @ydnar got rid of the size change.

It does not?

Here is the output of the "Binary size difference" check of this PR (for some reason it didn't create a comment, but it's in the "Calculate size diff" step):

 flash ram before after diff before after diff [...] 5706314 5733110 26796 0.00% 857394 857394 0 0.00% 

Whereas #4774 looks like this:

 flash ram before after diff before after diff [...] 2041306 2045366 4060 0.00% 472522 472378 -144 -0.00% 

26796 vs 4060 is a significant difference. And I wonder why that is. (It also says 0.00% but I believe that number is calculated wrong).

@aykevl thanks for the review. What’s the best way to benchmark binary size changes?

See above. It runs make smoke-test in the drivers repo and runs the output (before+after) through the sizediff utility in the tinygo repo.

[deadprogram]

oops I read it incorrectly it seems.

[ydnar]

Is this a difference of 26K vs 4K? Am I reading that right?

Is the last line cumulative? The proceeding lines imply a size diff of ~1% per item.

[deadprogram]

PR #4774 has this result at present:
https://github.com/tinygo-org/tinygo/actions/runs/13809326310/job/38627052954?pr=4774#step:17:29

The diff number is 1360

This PR has this result:
https://github.com/tinygo-org/tinygo/actions/runs/13773050549/job/38515896159?pr=4787#step:17:152

The diff number is 26796

[aykevl]

There's also something going on with that check. Especially https://github.com/tinygo-org/tinygo/actions/runs/13809326310/job/38627052954?pr=4774#step:17:29 stops way too early, probably as a result of a bug (fixed in tinygo-org/drivers#746 but not yet in the default branch). So that size is certainly not correct.

[aykevl]

EDIT: might have messed up tests below, see #4774 (comment)

EDIT 2: updated the tests. With #4774 fixed, the difference is not nearly as big: 5376 vs 16320 total increase (#4774 is still smaller though).

---

Finished #4774 including the change to the runtime package (but it doesn't include the Seq changes).

For #4774, on my system I get a total change of 5376 bytes. A bunch of tests add ~150 bytes, but there are also a few that are reduced in size slightly. Also, RAM usage is down by 8-16 bytes in some cases. Details:

PR #4774 diff (click to expand)

$ ../tinygo/tools/sizediff size-reflectlite-0.txt size-reflectlite-2i.txt flash ram before after diff before after diff 21880 21820 -60 -0.27% 3556 3540 -16 -0.45% tinygo build -size short -o ./build/test.hex -target=bluepill ./examples/ds1307/time/main.go 67436 67376 -60 -0.09% 6360 6344 -16 -0.25% tinygo build -size short -o ./build/test.hex -target=feather-m0 ./examples/gps/i2c/main.go 67956 67896 -60 -0.09% 6504 6488 -16 -0.25% tinygo build -size short -o ./build/test.hex -target=feather-m0 ./examples/gps/uart/main.go 27272 27220 -52 -0.19% 5748 5732 -16 -0.28% tinygo build -size short -o ./build/test.hex -target=microbit-v2 ./examples/microbitmatrix/main.go 31516 31464 -52 -0.16% 4680 4664 -16 -0.34% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/ssd1289/main.go 36416 36368 -48 -0.13% 3988 3972 -16 -0.40% tinygo build -size short -o ./build/test.hex -target=feather-rp2040 ./examples/pcf8523/ 27416 27372 -44 -0.16% 3768 3752 -16 -0.42% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/microbitmatrix/main.go 16688 16688 0 0.00% 4180 4180 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-rp2040 ./examples/adafruit4650 9604 9604 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/adxl345/main.go 13716 13716 0 0.00% 6796 6796 0 0.00% tinygo build -size short -o ./build/test.hex -target=pybadge ./examples/amg88xx 9104 9104 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/apa102/main.go 11848 11848 0 0.00% 6580 6580 0 0.00% tinygo build -size short -o ./build/test.hex -target=nano-33-ble ./examples/apds9960/proximity/main.go 9920 9920 0 0.00% 4760 4760 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/apa102/itsybitsy-m0/main.go 8376 8376 0 0.00% 2320 2320 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/at24cx/main.go 8164 8164 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/bh1750/main.go 7468 7468 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/blinkm/main.go 27804 27804 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/bmp180/main.go 12248 12248 0 0.00% 4812 4812 0 0.00% tinygo build -size short -o ./build/test.hex -target=trinket-m0 ./examples/bmp388/main.go 8364 8364 0 0.00% 3352 3352 0 0.00% tinygo build -size short -o ./build/test.hex -target=bluepill ./examples/ds1307/sram/main.go 4628 4628 0 0.00% 2280 2280 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/easystepper/main.go 7308 7308 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/gc9a01/main.go 8552 8552 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/hcsr04/main.go 5840 5840 0 0.00% 2280 2280 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/hd44780/customchar/main.go 5792 5792 0 0.00% 2280 2280 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/hd44780/text/main.go 10568 10568 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/hd44780i2c/main.go 14748 14748 0 0.00% 6580 6580 0 0.00% tinygo build -size short -o ./build/test.hex -target=nano-33-ble ./examples/hts221/main.go 16252 16252 0 0.00% 2364 2364 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/hub75/main.go 10400 10400 0 0.00% 6924 6924 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/ili9341/basic 11304 11304 0 0.00% 4884 4884 0 0.00% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/ili9341/basic 29852 29852 0 0.00% 38084 38084 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/ili9341/pyportal_boing 10424 10424 0 0.00% 6916 6916 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/ili9341/scroll 11388 11388 0 0.00% 4876 4876 0 0.00% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/ili9341/scroll 11772 11772 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/lis3dh/main.go 14112 14112 0 0.00% 6580 6580 0 0.00% tinygo build -size short -o ./build/test.hex -target=nano-33-ble ./examples/lps22hb/main.go 26500 26500 0 0.00% 2328 2328 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/lsm303agr/main.go 12484 12484 0 0.00% 4788 4788 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/lsm6ds3/main.go 10760 10760 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mag3110/main.go 9940 9940 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mcp23017/main.go 10380 10380 0 0.00% 4788 4788 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mcp23017-multiple/main.go 10276 10276 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mcp3008/main.go 8276 8276 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mma8653/main.go 8184 8184 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mpu6050/main.go 12280 12280 0 0.00% 3360 3360 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/pca9685/main.go 6268 6268 0 0.00% 3292 3292 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/pcd8544/setbuffer/main.go 5296 5296 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/pcd8544/setpixel/main.go 10568 10568 0 0.00% 3336 3336 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-rp2040 ./examples/seesaw 2841 2841 0 0.00% 558 558 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino ./examples/servo 13848 13848 0 0.00% 3408 3408 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/sgp30 8212 8212 0 0.00% 6788 6788 0 0.00% tinygo build -size short -o ./build/test.hex -target=pybadge ./examples/shifter/main.go 6704 6704 0 0.00% 2288 2288 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/ssd1306/i2c_128x32/main.go 6216 6216 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/ssd1306/spi_128x64/main.go 5912 5912 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/ssd1331/main.go 6848 6848 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/st7735/main.go 6776 6776 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/st7789/main.go 17544 17544 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/thermistor/main.go 10712 10712 0 0.00% 4540 4540 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-bluefruit ./examples/tone 10208 10208 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/tm1637/main.go 10884 10884 0 0.00% 3348 3348 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/touch/capacitive 9648 9648 0 0.00% 6788 6788 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/touch/resistive/fourwire/main.go 12664 12664 0 0.00% 6984 6984 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/touch/resistive/pyportal_touchpaint/main.go 15892 15892 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/vl53l1x/main.go 14412 14412 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/vl6180x/main.go 24796 24796 0 0.00% 13728 13728 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-nrf52840-sense ./examples/waveshare-epd/epd1in54/main.go 6520 6520 0 0.00% 2324 2324 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/waveshare-epd/epd2in13/main.go 6188 6188 0 0.00% 2316 2316 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/waveshare-epd/epd2in13x/main.go 6440 6440 0 0.00% 2324 2324 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/waveshare-epd/epd4in2/main.go 26144 26144 0 0.00% 16420 16420 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/waveshare-epd/epd2in66b/main.go 6988 6988 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/ws2812 5768 5768 0 0.00% 9522 9522 0 0.00% '-xesppie' is not a recognized feature for this target (ignoring feature) 1581 1581 0 0.00% 598 598 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino ./examples/ws2812 1056 1056 0 0.00% 180 180 0 0.00% tinygo build -size short -o ./build/test.hex -target=digispark ./examples/ws2812 32256 32256 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=trinket-m0 ./examples/bme280/main.go 17104 17104 0 0.00% 4732 4732 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/microphone/main.go 11640 11640 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/buzzer/main.go 12820 12820 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=trinket-m0 ./examples/veml6070/main.go 6904 6904 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/l293x/simple/main.go 8804 8804 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/l293x/speed/main.go 6872 6872 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/l9110x/simple/main.go 9316 9316 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/l9110x/speed/main.go 7404 7404 0 0.00% 3324 3324 0 0.00% tinygo build -size short -o ./build/test.hex -target=nucleo-f103rb ./examples/shiftregister/main.go 6996 6996 0 0.00% 2272 2272 0 0.00% '-xesppie' is not a recognized feature for this target (ignoring feature) 13372 13372 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/lis2mdl/main.go 9920 9920 0 0.00% 4764 4764 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/max72xx/main.go 7316 7316 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/pcf8563/clkout/ 12224 12224 0 0.00% 3312 3312 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/qmi8658c/main.go 10844 10844 0 0.00% 3296 3296 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-rp2040 ./examples/pcf8591/ 8788 8788 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-m0 ./examples/ina260/main.go 13228 13228 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-m0 ./examples/ina219/main.go 9392 9392 0 0.00% 5248 5248 0 0.00% tinygo build -size short -o ./build/test.hex -target=nucleo-l432kc ./examples/aht20/main.go 10416 10416 0 0.00% 6788 6788 0 0.00% tinygo build -size short -o ./build/test.elf -target=wioterminal ./examples/axp192/m5stack-core2-blinky/ 9052 9052 0 0.00% 3284 3284 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/xpt2046/main.go 13276 13276 0 0.00% 4936 4936 0 0.00% tinygo build -size short -o ./build/test.hex -target=nucleo-wl55jc ./examples/sx126x/lora_rxtx/ 11260 11260 0 0.00% 4260 4260 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/irremote/main.go 12116 12116 0 0.00% 3332 3332 0 0.00% tinygo build -size short -o ./build/test.hex -target=badger2040 ./examples/uc8151/main.go 10468 10468 0 0.00% 3364 3364 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/scd4x/main.go 8700 8700 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=circuitplay-express ./examples/makeybutton/main.go 9708 9708 0 0.00% 4764 4764 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/ds18b20/main.go 15944 15944 0 0.00% 4876 4876 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/as560x/main.go 9912 9912 0 0.00% 3304 3304 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/mpu6886/main.go 7948 7948 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/ttp229/main.go 9344 9344 0 0.00% 3296 3296 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/mpu9150/main.go 11628 11628 0 0.00% 3332 3332 0 0.00% tinygo build -size short -o ./build/test.hex -target=macropad-rp2040 ./examples/sh1106/macropad_spi 8468 8468 0 0.00% 3760 3760 0 0.00% tinygo build -size short -o ./build/test.hex -target=macropad-rp2040 ./examples/encoders/quadrature-interrupt 12500 12500 0 0.00% 4552 4552 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=nicenano ./examples/sharpmem/main.go 340372 340380 8 0.00% 22748 22740 -8 -0.04% tinygo build -size short -o ./build/test.hex -target=wioterminal -stack-size 8kb ./examples/net/mqttclient/paho/ 13276 13304 28 0.21% 3292 3292 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/tmc5160/main.go 348556 348600 44 0.01% 17748 17740 -8 -0.05% tinygo build -size short -o ./build/test.hex -target=pyportal -stack-size 8kb ./examples/net/http-get/ 29412 29492 80 0.27% 3680 3664 -16 -0.43% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/tmc2209/main.go 307684 307780 96 0.03% 14740 14732 -8 -0.05% tinygo build -size short -o ./build/test.hex -target=nano-rp2040 -stack-size 8kb ./examples/net/websocket/dial/ 153536 153648 112 0.07% 6676 6668 -8 -0.12% tinygo build -size short -o ./build/test.hex -target=nano-rp2040 -stack-size 8kb ./examples/net/mqttclient/natiu/ 69868 70008 140 0.20% 6980 6972 -8 -0.11% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/flash/console/spi 66568 66708 140 0.21% 4816 4808 -8 -0.17% tinygo build -size short -o ./build/test.hex -target=pico ./examples/ndir/main_ndir.go 61968 62108 140 0.23% 3784 3776 -8 -0.21% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/ndir/main_ndir.go 65068 65208 140 0.22% 6260 6252 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/ndir/main_ndir.go 166436 166576 140 0.08% 10000 9992 -8 -0.08% tinygo build -size short -o ./build/test.hex -target=arduino-mkrwifi1010 -stack-size 8kb ./examples/net/tlsclient/ 61216 61364 148 0.24% 6188 6180 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/adt7410/main.go 64092 64240 148 0.23% 6204 6196 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/bmi160/main.go 63800 63948 148 0.23% 6228 6220 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/bmp280/main.go 69088 69236 148 0.21% 6376 6368 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/ds3231/main.go 70184 70332 148 0.21% 6204 6196 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mcp2515/main.go 62592 62740 148 0.24% 5948 5940 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=feather-nrf52840 ./examples/is31fl3731/main.go 76564 76712 148 0.19% 6344 6336 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=feather-m0 ./examples/dht/main.go 70816 70964 148 0.21% 6352 6344 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/pcf8563/alarm/ 70304 70452 148 0.21% 6348 6340 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/pcf8563/time/ 70672 70820 148 0.21% 6352 6344 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/pcf8563/timer/ 65944 66092 148 0.22% 4784 4776 -8 -0.17% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/mcp9808/main.go 85684 85832 148 0.17% 5148 5140 -8 -0.16% tinygo build -size short -o ./build/test.hex -target=challenger-rp2040 ./examples/net/ntpclient/ 119768 119916 148 0.12% 7976 7968 -8 -0.10% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 -stack-size 8kb ./examples/net/tcpclient/ 103568 103716 148 0.14% 9944 9936 -8 -0.08% tinygo build -size short -o ./build/test.hex -target=metro-m4-airlift -stack-size 8kb ./examples/net/socket/ 172240 172388 148 0.09% 11716 11708 -8 -0.07% tinygo build -size short -o ./build/test.hex -target=elecrow-rp2040 -stack-size 8kb ./examples/net/tlsclient/ 66708 66864 156 0.23% 9020 9012 -8 -0.09% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/flash/console/qspi 263648 263804 156 0.06% 46780 46772 -8 -0.02% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/ili9341/slideshow 57200 57356 156 0.27% 3688 3680 -8 -0.22% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/sht3x/main.go 57176 57332 156 0.27% 3696 3688 -8 -0.22% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/sht4x/main.go 57164 57320 156 0.27% 3688 3680 -8 -0.22% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/shtc3/main.go 61596 61752 156 0.25% 8236 8228 -8 -0.10% tinygo build -size short -o ./build/test.hex -target=feather-m4 ./examples/i2csoft/adt7410/ 60172 60328 156 0.26% 5968 5960 -8 -0.13% tinygo build -size short -o ./build/test.hex -target=feather-nrf52840 ./examples/max6675/main.go 336180 336336 156 0.05% 21388 21380 -8 -0.04% tinygo build -size short -o ./build/test.hex -target=wioterminal -stack-size 8kb ./examples/net/webserver/ 117796 117952 156 0.13% 9692 9684 -8 -0.08% tinygo build -size short -o ./build/test.hex -target=elecrow-rp2350 -stack-size 8kb ./examples/net/ntpclient/ 121872 122032 160 0.13% 8004 7996 -8 -0.10% tinygo build -size short -o ./build/test.hex -target=nucleo-wl55jc ./examples/lora/lorawan/atcmd/ 73900 74064 164 0.22% 10764 10756 -8 -0.07% tinygo build -size short -o ./build/test.hex -target=feather-m4 ./examples/sdcard/console/ 388636 388800 164 0.04% 18348 18340 -8 -0.04% tinygo build -size short -o ./build/test.hex -target=matrixportal-m4 -stack-size 8kb ./examples/net/webstatic/ 116600 116764 164 0.14% 13252 13244 -8 -0.06% tinygo build -size short -o ./build/test.hex -target=wioterminal -stack-size 8kb ./examples/net/webclient/ 71204 71400 196 0.28% 3720 3712 -8 -0.22% tinygo build -size short -o ./build/test.hex -target=pinetime ./examples/bma42x/main.go 75844 76056 212 0.28% 7452 7452 0 0.00% tinygo build -size short -o ./build/test.hex -target=p1am-100 ./examples/p1am/main.go 6113062 6118438 5376 0.00% 873790 873358 -432 -0.00% 

For a fair comparson against this PR, I rebased this PR against the dev branch (04c7057) and removed the Seq related bits (since the Seq bits add code size). The result is an increase of 16320 total bytes. There are a bunch of tests that add ~400 bytes, while there are no decreases in code size. Details:

This PR diff (click to expand)

$ ../tinygo/tools/sizediff size-reflectlite-0.txt size-reflectlite-ydnar-noseq-b.txt flash ram before after diff before after diff 16688 16688 0 0.00% 4180 4180 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-rp2040 ./examples/adafruit4650 9604 9604 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/adxl345/main.go 13716 13716 0 0.00% 6796 6796 0 0.00% tinygo build -size short -o ./build/test.hex -target=pybadge ./examples/amg88xx 9104 9104 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/apa102/main.go 11848 11848 0 0.00% 6580 6580 0 0.00% tinygo build -size short -o ./build/test.hex -target=nano-33-ble ./examples/apds9960/proximity/main.go 9920 9920 0 0.00% 4760 4760 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/apa102/itsybitsy-m0/main.go 8376 8376 0 0.00% 2320 2320 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/at24cx/main.go 8164 8164 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/bh1750/main.go 7468 7468 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/blinkm/main.go 27804 27804 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/bmp180/main.go 12248 12248 0 0.00% 4812 4812 0 0.00% tinygo build -size short -o ./build/test.hex -target=trinket-m0 ./examples/bmp388/main.go 8364 8364 0 0.00% 3352 3352 0 0.00% tinygo build -size short -o ./build/test.hex -target=bluepill ./examples/ds1307/sram/main.go 4628 4628 0 0.00% 2280 2280 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/easystepper/main.go 7308 7308 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/gc9a01/main.go 8552 8552 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/hcsr04/main.go 5840 5840 0 0.00% 2280 2280 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/hd44780/customchar/main.go 5792 5792 0 0.00% 2280 2280 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/hd44780/text/main.go 10568 10568 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/hd44780i2c/main.go 14748 14748 0 0.00% 6580 6580 0 0.00% tinygo build -size short -o ./build/test.hex -target=nano-33-ble ./examples/hts221/main.go 16252 16252 0 0.00% 2364 2364 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/hub75/main.go 10400 10400 0 0.00% 6924 6924 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/ili9341/basic 11304 11304 0 0.00% 4884 4884 0 0.00% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/ili9341/basic 29852 29852 0 0.00% 38084 38084 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/ili9341/pyportal_boing 10424 10424 0 0.00% 6916 6916 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/ili9341/scroll 11388 11388 0 0.00% 4876 4876 0 0.00% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/ili9341/scroll 11772 11772 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/lis3dh/main.go 14112 14112 0 0.00% 6580 6580 0 0.00% tinygo build -size short -o ./build/test.hex -target=nano-33-ble ./examples/lps22hb/main.go 26500 26500 0 0.00% 2328 2328 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/lsm303agr/main.go 12484 12484 0 0.00% 4788 4788 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/lsm6ds3/main.go 10760 10760 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mag3110/main.go 9940 9940 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mcp23017/main.go 10380 10380 0 0.00% 4788 4788 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mcp23017-multiple/main.go 10276 10276 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mcp3008/main.go 8276 8276 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mma8653/main.go 8184 8184 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mpu6050/main.go 12280 12280 0 0.00% 3360 3360 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/pca9685/main.go 6268 6268 0 0.00% 3292 3292 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/pcd8544/setbuffer/main.go 5296 5296 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/pcd8544/setpixel/main.go 10568 10568 0 0.00% 3336 3336 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-rp2040 ./examples/seesaw 2841 2841 0 0.00% 558 558 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino ./examples/servo 13848 13848 0 0.00% 3408 3408 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/sgp30 8212 8212 0 0.00% 6788 6788 0 0.00% tinygo build -size short -o ./build/test.hex -target=pybadge ./examples/shifter/main.go 6704 6704 0 0.00% 2288 2288 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/ssd1306/i2c_128x32/main.go 6216 6216 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/ssd1306/spi_128x64/main.go 5912 5912 0 0.00% 2284 2284 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/ssd1331/main.go 6848 6848 0 0.00% 2284 2284 0 0.00% tinygo build 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./examples/touch/resistive/pyportal_touchpaint/main.go 15892 15892 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/vl53l1x/main.go 14412 14412 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/vl6180x/main.go 24796 24796 0 0.00% 13728 13728 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-nrf52840-sense ./examples/waveshare-epd/epd1in54/main.go 6520 6520 0 0.00% 2324 2324 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/waveshare-epd/epd2in13/main.go 6188 6188 0 0.00% 2316 2316 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/waveshare-epd/epd2in13x/main.go 6440 6440 0 0.00% 2324 2324 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/waveshare-epd/epd4in2/main.go 26144 26144 0 0.00% 16420 16420 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/waveshare-epd/epd2in66b/main.go 6988 6988 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/ws2812 5768 5768 0 0.00% 9522 9522 0 0.00% '-xesppie' is not a recognized feature for this target (ignoring feature) 1581 1581 0 0.00% 598 598 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino ./examples/ws2812 1056 1056 0 0.00% 180 180 0 0.00% tinygo build -size short -o ./build/test.hex -target=digispark ./examples/ws2812 32256 32256 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=trinket-m0 ./examples/bme280/main.go 17104 17104 0 0.00% 4732 4732 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/microphone/main.go 11640 11640 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/buzzer/main.go 12820 12820 0 0.00% 4780 4780 0 0.00% tinygo build -size short -o ./build/test.hex -target=trinket-m0 ./examples/veml6070/main.go 6904 6904 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/l293x/simple/main.go 8804 8804 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/l293x/speed/main.go 6872 6872 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/l9110x/simple/main.go 9316 9316 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/l9110x/speed/main.go 7404 7404 0 0.00% 3324 3324 0 0.00% tinygo build -size short -o ./build/test.hex -target=nucleo-f103rb ./examples/shiftregister/main.go 6996 6996 0 0.00% 2272 2272 0 0.00% '-xesppie' is not a recognized feature for this target (ignoring feature) 13372 13372 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=circuitplay-express ./examples/lis2mdl/main.go 9920 9920 0 0.00% 4764 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./examples/axp192/m5stack-core2-blinky/ 9052 9052 0 0.00% 3284 3284 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/xpt2046/main.go 13276 13276 0 0.00% 4936 4936 0 0.00% tinygo build -size short -o ./build/test.hex -target=nucleo-wl55jc ./examples/sx126x/lora_rxtx/ 11260 11260 0 0.00% 4260 4260 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/irremote/main.go 12116 12116 0 0.00% 3332 3332 0 0.00% tinygo build -size short -o ./build/test.hex -target=badger2040 ./examples/uc8151/main.go 10468 10468 0 0.00% 3364 3364 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/scd4x/main.go 8700 8700 0 0.00% 4748 4748 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=circuitplay-express ./examples/makeybutton/main.go 9708 9708 0 0.00% 4764 4764 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/ds18b20/main.go 15944 15944 0 0.00% 4876 4876 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/as560x/main.go 9912 9912 0 0.00% 3304 3304 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/mpu6886/main.go 7948 7948 0 0.00% 4740 4740 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/ttp229/main.go 9344 9344 0 0.00% 3296 3296 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/mpu9150/main.go 11628 11628 0 0.00% 3332 3332 0 0.00% tinygo build -size short -o ./build/test.hex -target=macropad-rp2040 ./examples/sh1106/macropad_spi 8468 8468 0 0.00% 3760 3760 0 0.00% tinygo build -size short -o ./build/test.hex -target=macropad-rp2040 ./examples/encoders/quadrature-interrupt 12500 12500 0 0.00% 4552 4552 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=nicenano ./examples/sharpmem/main.go 67436 67456 20 0.03% 6360 6360 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-m0 ./examples/gps/i2c/main.go 27416 27436 20 0.07% 3768 3768 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/microbitmatrix/main.go 27272 27292 20 0.07% 5748 5748 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit-v2 ./examples/microbitmatrix/main.go 36416 36436 20 0.05% 3988 3988 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-rp2040 ./examples/pcf8523/ 31516 31536 20 0.06% 4680 4680 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/ssd1289/main.go 21880 21904 24 0.11% 3556 3556 0 0.00% tinygo build -size short -o ./build/test.hex -target=bluepill ./examples/ds1307/time/main.go 67956 67984 28 0.04% 6504 6504 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-m0 ./examples/gps/uart/main.go 13276 13304 28 0.21% 3292 3292 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/tmc5160/main.go 340372 340608 236 0.07% 22748 22748 0 0.00% tinygo build -size short -o ./build/test.hex -target=wioterminal -stack-size 8kb ./examples/net/mqttclient/paho/ 348556 348848 292 0.08% 17748 17748 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal -stack-size 8kb ./examples/net/http-get/ 29412 29736 324 1.10% 3680 3680 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/tmc2209/main.go 70816 71156 340 0.48% 6352 6352 0 0.00% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/pcf8563/alarm/ 70304 70644 340 0.48% 6348 6348 0 0.00% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/pcf8563/time/ 70672 71012 340 0.48% 6352 6352 0 0.00% tinygo build -size short -o ./build/test.hex -target=xiao ./examples/pcf8563/timer/ 336180 336544 364 0.11% 21388 21388 0 0.00% tinygo build -size short -o ./build/test.hex -target=wioterminal -stack-size 8kb ./examples/net/webserver/ 103568 103944 376 0.36% 9944 9944 0 0.00% tinygo build -size short -o ./build/test.hex -target=metro-m4-airlift -stack-size 8kb ./examples/net/socket/ 307684 308064 380 0.12% 14740 14740 0 0.00% tinygo build -size short -o ./build/test.hex -target=nano-rp2040 -stack-size 8kb ./examples/net/websocket/dial/ 73900 74300 400 0.54% 10764 10764 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-m4 ./examples/sdcard/console/ 64092 64500 408 0.64% 6204 6204 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/bmi160/main.go 63800 64208 408 0.64% 6228 6228 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/bmp280/main.go 85684 86092 408 0.48% 5148 5148 0 0.00% tinygo build -size short -o ./build/test.hex -target=challenger-rp2040 ./examples/net/ntpclient/ 166436 166848 412 0.25% 10000 10000 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-mkrwifi1010 -stack-size 8kb ./examples/net/tlsclient/ 172240 172652 412 0.24% 11716 11716 0 0.00% tinygo build -size short -o ./build/test.hex -target=elecrow-rp2040 -stack-size 8kb ./examples/net/tlsclient/ 61216 61632 416 0.68% 6188 6188 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/adt7410/main.go 263648 264064 416 0.16% 46780 46780 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/ili9341/slideshow 70184 70600 416 0.59% 6204 6204 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/mcp2515/main.go 62592 63008 416 0.66% 5948 5948 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-nrf52840 ./examples/is31fl3731/main.go 121872 122288 416 0.34% 8004 8004 0 0.00% tinygo build -size short -o ./build/test.hex -target=nucleo-wl55jc ./examples/lora/lorawan/atcmd/ 66568 66984 416 0.62% 4816 4816 0 0.00% tinygo build -size short -o ./build/test.hex -target=pico ./examples/ndir/main_ndir.go 61968 62384 416 0.67% 3784 3784 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/ndir/main_ndir.go 65068 65484 416 0.64% 6260 6260 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 ./examples/ndir/main_ndir.go 65944 66360 416 0.63% 4784 4784 0 0.00% tinygo build -size short -o ./build/test.uf2 -target=pico ./examples/mcp9808/main.go 60172 60588 416 0.69% 5968 5968 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-nrf52840 ./examples/max6675/main.go 388636 389056 420 0.11% 18348 18348 0 0.00% tinygo build -size short -o ./build/test.hex -target=matrixportal-m4 -stack-size 8kb ./examples/net/webstatic/ 71204 71628 424 0.60% 3720 3720 0 0.00% tinygo build -size short -o ./build/test.hex -target=pinetime ./examples/bma42x/main.go 69088 69512 424 0.61% 6376 6376 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/ds3231/main.go 57200 57624 424 0.74% 3688 3688 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/sht3x/main.go 57176 57600 424 0.74% 3696 3696 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/sht4x/main.go 57164 57588 424 0.74% 3688 3688 0 0.00% tinygo build -size short -o ./build/test.hex -target=microbit ./examples/shtc3/main.go 76564 76988 424 0.55% 6344 6344 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-m0 ./examples/dht/main.go 61596 62020 424 0.69% 8236 8236 0 0.00% tinygo build -size short -o ./build/test.hex -target=feather-m4 ./examples/i2csoft/adt7410/ 119768 120192 424 0.35% 7976 7976 0 0.00% tinygo build -size short -o ./build/test.hex -target=arduino-nano33 -stack-size 8kb ./examples/net/tcpclient/ 116600 117032 432 0.37% 13252 13252 0 0.00% tinygo build -size short -o ./build/test.hex -target=wioterminal -stack-size 8kb ./examples/net/webclient/ 117796 118228 432 0.37% 9692 9692 0 0.00% tinygo build -size short -o ./build/test.hex -target=elecrow-rp2350 -stack-size 8kb ./examples/net/ntpclient/ 153536 153976 440 0.29% 6676 6676 0 0.00% tinygo build -size short -o ./build/test.hex -target=nano-rp2040 -stack-size 8kb ./examples/net/mqttclient/natiu/ 66708 67160 452 0.68% 9020 9020 0 0.00% tinygo build -size short -o ./build/test.hex -target=pyportal ./examples/flash/console/qspi 75844 76324 480 0.63% 7452 7452 0 0.00% tinygo build -size short -o ./build/test.hex -target=p1am-100 ./examples/p1am/main.go 69868 70360 492 0.70% 6980 6980 0 0.00% tinygo build -size short -o ./build/test.hex -target=itsybitsy-m0 ./examples/flash/console/spi 6113062 6129382 16320 0.00% 873790 873790 0 0.00% 

The drivers repo commit I used for testing against is 156d6e7c9ce473be185e1554c9da3c2983e6e26a.

[ydnar]

Thanks. I suspect the additional code size comes from methods on Type or Value that are now in reflectlite.

It's possible to move functions into package reflect that aren't required for consumers of reflectlite.

Thoughts?

[dgryski]

Ideally reflectlite has just the bits of reflect that are needed by the runtime (primarily the hashmap impementation).

[deadprogram]

Seems like maintainability wins this round, since the size increase is not much more than the alternative.

Perhaps in a future PR some small decreases can be found. In any case it is not worth holding back the needed fixes unblocked by this PR.

Now going to merge unless any objections.

[aykevl]

Looks good to me.

[aykevl]

The file src/reflect/strconv.go can be removed.

[ydnar]

Removed, rebased, and pushed.

[ydnar]

OK, @deadprogram ready to go!

[deadprogram]

Awesome work @ydnar and @aykevl thank you! Now merging.