3 files changed, 89 insertions, 12 deletions
diff --git a/server-beta/src/parser/guide.lua b/server-beta/src/parser/guide.lua
index 061efaec..7cec136d 100644
--- a/server-beta/src/parser/guide.lua
+++ b/server-beta/src/parser/guide.lua
@@ -230,4 +230,20 @@ function m.offsetOf(lines, row, col)
     end
 end
 
+function m.lineContent(lines, text, row)
+    local line = lines[row]
+    if not line then
+        return ''
+    end
+    return text:sub(line.start + 1, line.finish)
+end
+
+function m.lineRange(lines, row)
+    local line = lines[row]
+    if not line then
+        return 0, 0
+    end
+    return line.start + 1, line.finish
+end
+
 return m
diff --git a/server-beta/src/proto/interface.lua b/server-beta/src/proto/interface.lua
new file mode 100644
index 00000000..21be1cdf
--- /dev/null
+++ b/server-beta/src/proto/interface.lua
@@ -0,0 +1,59 @@
+local guide = require 'parser.guide'
+
+local m = {}
+
+
+--- 获取 position 对应的光标位置
+---@param lines table
+---@param text string
+---@param position position
+---@return integer
+function m.offset(lines, text, position)
+    local row    = position.line
+    local start  = guide.lineRange(lines, row)
+    local col    = utf8.offset(text, position.character, start)
+    local offset = guide.offsetOf(lines, row, col)
+    return offset
+end
+
+--- 将光标位置转化为 position
+---@alias position table
+---@param lines table
+---@param text string
+---@param offset integer
+---@return position
+function m.position(lines, text, offset)
+    local row, col = guide.positionOf(lines, offset)
+    local start    = guide.lineRange(lines, row)
+    local ucol     = utf8.len(text, start, col, true)
+    return {
+        line      = row,
+        character = ucol,
+    }
+end
+
+--- 将2个光标位置转化为 range
+---@alias range table
+---@param lines table
+---@param text string
+---@param offset1 integer
+---@param offset2 integer
+function m.range(lines, text, offset1, offset2)
+    return {
+        start   = m.position(lines, text, offset1),
+        ['end'] = m.position(lines, text, offset2),
+    }
+end
+
+---@alias location table
+---@param uri string
+---@param range range
+---@return location
+function m.location(uri, range)
+    return {
+        uri   = uri,
+        range = range,
+    }
+end
+
+return m
diff --git a/server-beta/src/proto/provider.lua b/server-beta/src/proto/provider.lua
index 84463db9..41b41fdd 100644
--- a/server-beta/src/proto/provider.lua
+++ b/server-beta/src/proto/provider.lua
@@ -1,9 +1,10 @@
-local util    = require 'utility'
-local cap     = require 'proto.capability'
-local pub     = require 'pub'
-local task    = require 'task'
-local files   = require 'files'
-local proto   = require 'proto.proto'
+local util      = require 'utility'
+local cap       = require 'proto.capability'
+local pub       = require 'pub'
+local task      = require 'task'
+local files     = require 'files'
+local proto     = require 'proto.proto'
+local interface = require 'proto.interface'
 
 proto.on('initialize', function (params)
     --log.debug(util.dump(params))
@@ -58,13 +59,14 @@ proto.on('textDocument/hover', function ()
 end)
 
 proto.on('textDocument/definition', function (params)
-    local core  = require 'core.definition'
-    local uri   = params.textDocument.uri
-    local ast   = files.getAst(uri)
-    local text  = files.getText(uri)
-    local clock = os.clock()
+    local clock  = os.clock()
+    local core   = require 'core.definition'
+    local uri    = params.textDocument.uri
+    local ast    = files.getAst(uri)
+    local text   = files.getText(uri)
+    local offset = interface.offset(ast.lines, text, params.position)
     local result, correct
     repeat
-        result, correct = core(ast, text, pos)
+        result, correct = core(ast, text, offset)
     until correct or os.clock() - clock >= 1.0
 end)