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local core = require 'core'
return function (lsp, params)
local uri = params.textDocument.uri
local vm, lines = lsp:loadVM(uri)
if not vm then
return
end
-- lua是从1开始的，因此都要+1
local position = lines:position(params.position.line + 1, params.position.character + 1)
local hovers = core.signature(vm, position)
if not hovers then
return
end
local signatures = {}
for i, hover in ipairs(hovers) do
signatures[i] = {
label = hover.label,
documentation = {
kind = 'markdown',
value = hover.description,
},
parameters = {
{
label = {
hover.argLabel[1] - 1,
hover.argLabel[2],
},
},
},
}
end
local response = {
signatures = signatures,
activeSignature = 0,
}
return response
end
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