build-wasm: generated .wasm file excessively large and not working

[cancerberoSgx]

Repro steps:

npm i tree-sitter-ocaml
npx tree-sitter build-wasm node_modules/tree-sitter-ocaml

This will generate tree-sitter-ocaml.wasm , with 19MB size and it will throw the following error while executing with node.js:

 message: 'Cannot read property \'apply\' of undefined',
 node_modules/web-tree-sitter/tree-sitter.js:1
  t.startsWith.e.(anonymous function) (node_modules/web-tree-sitter/tree-sitter.js:1:7182)
  Object.Module._ts_parser_parse_wasm (node_modules/web-tree-sitter/tree-sitter.js:1:37989)
  Parser.parse (node_modules/web-tree-sitter/tree-sitter.js:1:47548)

Ii think there's something wrong with it, since the rest of the grammars generates .wasm of no more that 1-2 MB.

[cancerberoSgx]

Update: updating dependencies generates a 6MB file but still fails to execute with the same error. Probably is combining some low level dependencies ?

[314eter]

I didn't get exactly the same error message, but #31 fixed it for me. The size is still 6MB, but the performance is good.

[maxbrunsfeld]

Thanks for these reports on the wasm code size, and sorry that it can still be a bit large in some cases. Things got better in Tree-sitter 0.15.3, tree-sitter/tree-sitter#334 will make them a bit better still, and there's still more work to do on code size.