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local vm = require 'vm.vm'
local guide = require 'parser.guide'
local ws = require 'workspace'
local files = require 'files'
local m = {}
function m.searchFileReturn(results, ast, index)
local returns = ast.returns
for _, ret in ipairs(returns) do
local exp = ret[index]
if exp then
local newRes = m.eachDef(ret[index])
if #newRes == 0 then
newRes[1] = exp
end
vm.mergeResults(results, newRes)
end
end
end
function m.require(results, args, index)
local reqName = args[1] and args[1][1]
if not reqName then
return
end
local uris = ws.findUrisByRequirePath(reqName, true)
for _, uri in ipairs(uris) do
local ast = files.getAst(uri)
if ast then
m.searchFileReturn(results, ast.ast, index)
end
end
end
function m.dofile(results, args, index)
local reqName = args[1] and args[1][1]
if not reqName then
return
end
local uris = ws.findUrisByFilePath(reqName, true)
for _, uri in ipairs(uris) do
local ast = files.getAst(uri)
if ast then
m.searchFileReturn(results, ast.ast, index)
end
end
end
function m.searchDefAcrossRequire(results)
for _, source in ipairs(results) do
local func, args, index = guide.getCallValue(source)
if not func then
goto CONTINUE
end
local lib = vm.getLibrary(func)
if not lib then
goto CONTINUE
end
if lib.name == 'require' and index == 1 then
m.require(results, args, index)
end
if lib.name == 'dofile' then
m.dofile(results, args, index)
end
::CONTINUE::
end
end
function m.searchLibrary(source, results)
if not source then
return
end
local lib = vm.getLibrary(source)
if not lib then
return
end
vm.mergeResults(results, { lib })
end
function m.eachDef(source, results)
results = results or {}
local lock = vm.lock('eachDef', source)
if not lock then
return results
end
local myResults = guide.requestDefinition(source, vm.interface)
m.searchDefAcrossRequire(myResults)
vm.mergeResults(results, myResults)
m.searchLibrary(source, results)
m.searchLibrary(guide.getObjectValue(source), results)
lock()
return results
end
function vm.getDefs(source)
local cache = vm.cache.eachDef[source] or m.eachDef(source)
vm.cache.eachDef[source] = cache
return cache
end
function vm.eachDef(source, callback)
local results = vm.getDefs(source)
for i = 1, #results do
callback(results[i])
end
end
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