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local files = require 'files'
local searcher = require 'core.searcher'
local await = require 'await'
local define = require 'proto.define'
local vm = require 'vm'
local util = require 'utility'
local guide = require 'parser.guide'
local Care = {}
Care['setglobal'] = function (source, results)
local isLib = vm.isGlobalLibraryName(source[1])
if not isLib then
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.namespace,
modifieres = define.TokenModifiers.deprecated,
}
end
end
Care['getglobal'] = function (source, results)
local isLib = vm.isGlobalLibraryName(source[1])
if not isLib then
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.namespace,
modifieres = define.TokenModifiers.deprecated,
}
end
end
Care['tablefield'] = function (source, results)
local field = source.field
if not field then
return
end
results[#results+1] = {
start = field.start,
finish = field.finish,
type = define.TokenTypes.property,
modifieres = define.TokenModifiers.declaration,
}
end
Care['getlocal'] = function (source, results)
local loc = source.node
-- 1. 值为函数的局部变量
local hasFunc
local node = loc.node
if node then
for _, ref in ipairs(node.ref) do
local def = ref.value
if def.type == 'function' then
hasFunc = true
break
end
end
end
if hasFunc then
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.interface,
modifieres = define.TokenModifiers.declaration,
}
return
end
-- 2. 对象
if source.parent.type == 'getmethod'
and source.parent.node == source then
return
end
-- 3. 特殊变量
if source[1] == '_ENV'
or source[1] == 'self' then
return
end
-- 4. 函数的参数
if loc.parent and loc.parent.type == 'funcargs' then
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.parameter,
modifieres = define.TokenModifiers.declaration,
}
return
end
-- 5. const 变量
if loc.attrs then
for _, attr in ipairs(loc.attrs) do
local name = attr[1]
if name == 'const' then
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.variable,
modifieres = define.TokenModifiers.static,
}
return
elseif name == 'close' then
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.variable,
modifieres = define.TokenModifiers.abstract,
}
return
end
end
end
-- 6. 函数调用
if source.parent.type == 'call'
and source.parent.node == source then
return
end
-- 7. 其他
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.variable,
}
end
Care['setlocal'] = Care['getlocal']
Care['local'] = function (source, results)
if source.attrs then
for _, attr in ipairs(source.attrs) do
local name = attr[1]
if name == 'const' then
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.variable,
modifieres = define.TokenModifiers.static,
}
return
elseif name == 'close' then
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.variable,
modifieres = define.TokenModifiers.abstract,
}
return
end
end
end
end
Care['doc.return.name'] = function (source, results)
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.parameter,
}
end
Care['doc.tailcomment'] = function (source, results)
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.comment,
}
end
Care['doc.type.name'] = function (source, results)
if source.typeGeneric then
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.macro,
}
end
end
Care['nonstandardSymbol.comment'] = function (source, results)
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.comment,
}
end
Care['nonstandardSymbol.continue'] = function (source, results)
results[#results+1] = {
start = source.start,
finish = source.finish,
type = define.TokenTypes.keyword,
}
end
local function buildTokens(uri, results)
local tokens = {}
local lastLine = 0
local lastStartChar = 0
for i, source in ipairs(results) do
local startPos = files.position(uri, source.start, 'left')
local finishPos = files.position(uri, source.finish, 'right')
local line = startPos.line
local startChar = startPos.character
local deltaLine = line - lastLine
local deltaStartChar
if deltaLine == 0 then
deltaStartChar = startChar - lastStartChar
else
deltaStartChar = startChar
end
lastLine = line
lastStartChar = startChar
-- see https://microsoft.github.io/language-server-protocol/specifications/specification-3-16/#textDocument_semanticTokens
local len = i * 5 - 5
tokens[len + 1] = deltaLine
tokens[len + 2] = deltaStartChar
tokens[len + 3] = finishPos.character - startPos.character -- length
tokens[len + 4] = source.type
tokens[len + 5] = source.modifieres or 0
end
return tokens
end
return function (uri, start, finish)
local ast = files.getState(uri)
local lines = files.getLines(uri)
local text = files.getText(uri)
if not ast then
return nil
end
local results = {}
local count = 0
guide.eachSourceBetween(ast.ast, start, finish, function (source)
local method = Care[source.type]
if not method then
return
end
method(source, results)
count = count + 1
if count % 100 == 0 then
await.delay()
end
end)
for _, comm in ipairs(ast.comms) do
if comm.type == 'comment.cshort' then
results[#results+1] = {
start = comm.start,
finish = comm.finish,
type = define.TokenTypes.comment,
}
end
end
table.sort(results, function (a, b)
return a.start < b.start
end)
local tokens = buildTokens(uri, results)
return tokens
end
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