<template> tag parsing issue in templates shorter than 3 characters

[chancancode]

1. ember new --yarn zomg, as of now that gives you:
   1. ember-cli@5.0.0
   2. eslint@8.43.0
   3. eslint-plugin-ember@11.8.0
2. Disable prettier integration (to isolate the problem to eslint):
   1. Remove eslint-config-prettier package
   2. Remove eslint-plugin-prettier package
   3. Remove extends plugin:prettier/recommended
   4. yarn
3. Add app/components/foo.gjs with the following content
4. Run yarn lint:js (which is eslint . --cache)

0 characters

export default <template></template>;

/private/tmp/zomg/app/components/foo.gjs
  0:0  error  Preprocessing error: Cannot split a chunk that has already been edited (1:13 – "</template>")

✖ 1 problem (1 error, 0 warnings)

1 character

export default <template>h</template>;

/private/tmp/zomg/app/components/foo.gjs
  0:0  error  Preprocessing error: Cannot overwrite across a split point

✖ 1 problem (1 error, 0 warnings)

2 characters

export default <template>hi</template>;

/private/tmp/zomg/app/components/foo.gjs
  0:0  error  Preprocessing error: Cannot overwrite a zero-length range – use appendLeft or prependRight instead

✖ 1 problem (1 error, 0 warnings)

3 characters

export default <template>hi!</template>;

✨  Done in 0.59s.

(The result is the same if you put the template tag inside a class body)

[bmish]

Note that this change was reverted:

• Use custom parser for gts/gjs #1920
• Revert "Use custom parser for gts/gjs (#1920)" #1941