script-beta/core/find-source.lua


1
2
3
4
5
6
7
8
9
10
11
12
13
14

local guide     = require 'parser.guide'

return function (ast, offset, accept)
    local len = math.huge
    local result
    guide.eachSourceContain(ast.ast, offset, function (source)
        local start, finish = guide.getStartFinish(source)
        if finish - start < len and accept[source.type] then
            result = source
            len = finish - start
        end
    end)
    return result
end