1 files changed, 65 insertions, 0 deletions
diff --git a/lua/blink/cmp/config/snippets.lua b/lua/blink/cmp/config/snippets.lua
new file mode 100644
index 0000000..cd804e9
--- /dev/null
+++ b/lua/blink/cmp/config/snippets.lua
@@ -0,0 +1,65 @@
+--- @class (exact) blink.cmp.SnippetsConfig
+--- @field preset 'default' | 'luasnip' | 'mini_snippets'
+--- @field expand fun(snippet: string) Function to use when expanding LSP provided snippets
+--- @field active fun(filter?: { direction?: number }): boolean Function to use when checking if a snippet is active
+--- @field jump fun(direction: number) Function to use when jumping between tab stops in a snippet, where direction can be negative or positive
+
+--- @param handlers table<'default' | 'luasnip' | 'mini_snippets', fun(...): any>
+local function by_preset(handlers)
+  return function(...)
+    local preset = require('blink.cmp.config').snippets.preset
+    return handlers[preset](...)
+  end
+end
+
+local validate = require('blink.cmp.config.utils').validate
+local snippets = {
+  --- @type blink.cmp.SnippetsConfig
+  default = {
+    preset = 'default',
+    -- NOTE: we wrap `vim.snippet` calls to reduce startup by 1-2ms
+    expand = by_preset({
+      default = function(snippet) vim.snippet.expand(snippet) end,
+      luasnip = function(snippet) require('luasnip').lsp_expand(snippet) end,
+      mini_snippets = function(snippet)
+        if not _G.MiniSnippets then error('mini.snippets has not been setup') end
+        local insert = MiniSnippets.config.expand.insert or MiniSnippets.default_insert
+        insert(snippet)
+      end,
+    }),
+    active = by_preset({
+      default = function(filter) return vim.snippet.active(filter) end,
+      luasnip = function(filter)
+        if filter and filter.direction then return require('luasnip').jumpable(filter.direction) end
+        return require('luasnip').in_snippet()
+      end,
+      mini_snippets = function()
+        if not _G.MiniSnippets then error('mini.snippets has not been setup') end
+        return MiniSnippets.session.get(false) ~= nil
+      end,
+    }),
+    jump = by_preset({
+      default = function(direction) vim.snippet.jump(direction) end,
+      luasnip = function(direction) require('luasnip').jump(direction) end,
+      mini_snippets = function(direction)
+        if not _G.MiniSnippets then error('mini.snippets has not been setup') end
+        MiniSnippets.session.jump(direction == -1 and 'prev' or 'next')
+      end,
+    }),
+  },
+}
+
+function snippets.validate(config)
+  validate('snippets', {
+    preset = {
+      config.preset,
+      function(preset) return vim.tbl_contains({ 'default', 'luasnip', 'mini_snippets' }, preset) end,
+      'one of: "default", "luasnip", "mini_snippets"',
+    },
+    expand = { config.expand, 'function' },
+    active = { config.active, 'function' },
+    jump = { config.jump, 'function' },
+  }, config)
+end
+
+return snippets