buffer source completion doesn't work with c type file

[cpcopy]

It works for lua file and empty buffer with no file type. Is there any specific configuration for c type file?
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Update latest found.
More accurate description is buffer source completion doesn't work for big c type file. It works if I reduce the file size.

[soifou]

It should work. What's your blink configuration?

In the meantime you can force the buffer source to appear alongside of lsp source:

opts = {
  sources = {
    providers = {                
      lsp = {
        fallbacks = {},
      },
    },
  },
},

[cpcopy]

Thanks for the suggestion. What I just found is the c file is too big. After update the configuration of max_async_buffer_size and max_total_buffer_size to a larger value, it works. What is the side effect if change these value to a larger one?

[soifou]

Ah, good finding! It will use "more" RAM, which will be released once you close the buffer. This limit is set for performance reasons, but it's only a safe guideline. The actual limit depends on your system spec and what you consider to be a large file. So I think you're fine :)