10 files changed, 158 insertions, 0 deletions
diff --git a/server/src/method/exit.lua b/server/src/method/exit.lua
new file mode 100644
index 00000000..716a86e7
--- /dev/null
+++ b/server/src/method/exit.lua
@@ -0,0 +1,3 @@
+return function ()
+    return true
+end
diff --git a/server/src/method/init.lua b/server/src/method/init.lua
new file mode 100644
index 00000000..a99c3ed5
--- /dev/null
+++ b/server/src/method/init.lua
@@ -0,0 +1,17 @@
+local method = {}
+
+local function init(name)
+    method[name] = require('method.' .. name:gsub('/', '.'))
+end
+
+init 'exit'
+init 'initialize'
+init 'initialized'
+init 'shutdown'
+init 'textDocument/implementation'
+init 'textDocument/definition'
+init 'textDocument/didOpen'
+init 'textDocument/didChange'
+init 'textDocument/didClose'
+
+return method
diff --git a/server/src/method/initialize.lua b/server/src/method/initialize.lua
new file mode 100644
index 00000000..866ded66
--- /dev/null
+++ b/server/src/method/initialize.lua
@@ -0,0 +1,18 @@
+return function (lsp, data)
+    lsp._inited = true
+    return {
+        capabilities = {
+            -- 支持“转到定义”
+            definitionProvider = true,
+            -- 支持“转到实现”
+            implementationProvider = true,
+            -- 文本同步方式
+            textDocumentSync = {
+                -- 打开关闭文本时通知
+                openClose = true,
+                -- 文本改变时完全通知 TODO 支持差量更新（2）
+                change = 1,
+            }
+        }
+    }
+end
diff --git a/server/src/method/initialized.lua b/server/src/method/initialized.lua
new file mode 100644
index 00000000..0451dc50
--- /dev/null
+++ b/server/src/method/initialized.lua
@@ -0,0 +1,3 @@
+return function (lsp)
+    return true
+end
diff --git a/server/src/method/shutdown.lua b/server/src/method/shutdown.lua
new file mode 100644
index 00000000..0451dc50
--- /dev/null
+++ b/server/src/method/shutdown.lua
@@ -0,0 +1,3 @@
+return function (lsp)
+    return true
+end
diff --git a/server/src/method/textDocument/definition.lua b/server/src/method/textDocument/definition.lua
new file mode 100644
index 00000000..3a17b463
--- /dev/null
+++ b/server/src/method/textDocument/definition.lua
@@ -0,0 +1,46 @@
+local parser = require 'parser'
+local matcher = require 'matcher'
+
+return function (lsp, params)
+    local uri = params.textDocument.uri
+    local text = lsp:loadText(uri)
+    if not text then
+        return nil, '找不到文件：' .. uri
+    end
+    local start_clock = os.clock()
+    -- lua是从1开始的，因此都要+1
+    local pos = parser.calcline.position_utf8(text, params.position.line + 1, params.position.character + 1)
+    local suc, start, finish = matcher.definition(text, pos)
+    if not suc then
+        if finish then
+            log.debug(start, uri)
+            finish.lua = nil
+            log.debug(table.dump(finish))
+        end
+        return {}
+    end
+
+    local start_row,  start_col  = parser.calcline.rowcol_utf8(text, start)
+    local finish_row, finish_col = parser.calcline.rowcol_utf8(text, finish)
+
+    local response = {
+        uri = uri,
+        range = {
+            start = {
+                line = start_row - 1,
+                character = start_col - 1,
+            },
+            ['end'] = {
+                line = finish_row - 1,
+                -- 这里不用-1，因为前端期待的是匹配完成后的位置
+                character = finish_col,
+            },
+        },
+    }
+    local passed_clock = os.clock() - start_clock
+    if passed_clock >= 0.01 then
+        log.warn(('[转到定义]耗时[%.3f]秒，文件大小[%s]字节'):format(passed_clock, #text))
+    end
+
+    return response
+end
diff --git a/server/src/method/textDocument/didChange.lua b/server/src/method/textDocument/didChange.lua
new file mode 100644
index 00000000..6856b729
--- /dev/null
+++ b/server/src/method/textDocument/didChange.lua
@@ -0,0 +1,7 @@
+return function (lsp, params)
+    local doc = params.textDocument
+    local change = params.contentChanges
+    -- TODO 支持差量更新
+    lsp:saveText(doc.uri, doc.version, change[1].text)
+    return true
+end
diff --git a/server/src/method/textDocument/didClose.lua b/server/src/method/textDocument/didClose.lua
new file mode 100644
index 00000000..d4edb624
--- /dev/null
+++ b/server/src/method/textDocument/didClose.lua
@@ -0,0 +1,5 @@
+return function (lsp, params)
+    local doc = params.textDocument
+    lsp:removeText(doc.uri, doc.version)
+    return true
+end
diff --git a/server/src/method/textDocument/didOpen.lua b/server/src/method/textDocument/didOpen.lua
new file mode 100644
index 00000000..27fdda71
--- /dev/null
+++ b/server/src/method/textDocument/didOpen.lua
@@ -0,0 +1,5 @@
+return function (lsp, params)
+    local doc = params.textDocument
+    lsp:saveText(doc.uri, doc.version, doc.text)
+    return true
+end
diff --git a/server/src/method/textDocument/implementation.lua b/server/src/method/textDocument/implementation.lua
new file mode 100644
index 00000000..6d3cd0ac
--- /dev/null
+++ b/server/src/method/textDocument/implementation.lua
@@ -0,0 +1,51 @@
+local parser = require 'parser'
+local matcher = require 'matcher'
+
+return function (lsp, params)
+    local uri = params.textDocument.uri
+    local text = lsp:loadText(uri)
+    if not text then
+        return nil, '找不到文件：' .. uri
+    end
+    local start_clock = os.clock()
+    -- lua是从1开始的，因此都要+1
+    local pos = parser.calcline.position_utf8(text, params.position.line + 1, params.position.character + 1)
+    local suc, results, info = matcher.implementation(text, pos)
+    if not suc then
+        if info then
+            log.debug(results, uri)
+            info.lua = nil
+            log.debug(table.dump(info))
+        end
+        return {}
+    end
+
+    local locations = {}
+    for i, result in ipairs(results) do
+        local start, finish = result[1], result[2]
+        local start_row,  start_col  = parser.calcline.rowcol_utf8(text, start)
+        local finish_row, finish_col = parser.calcline.rowcol_utf8(text, finish)
+        locations[i] = {
+            uri = uri,
+            range = {
+                start = {
+                    line = start_row - 1,
+                    character = start_col - 1,
+                },
+                ['end'] = {
+                    line = finish_row - 1,
+                    -- 这里不用-1，因为前端期待的是匹配完成后的位置
+                    character = finish_col,
+                },
+            }
+        }
+    end
+
+    local response = locations
+    local passed_clock = os.clock() - start_clock
+    if passed_clock >= 0.01 then
+        log.warn(('[转到实现]耗时[%.3f]秒，文件大小[%s]字节'):format(passed_clock, #text))
+    end
+
+    return response
+end