1 files changed, 88 insertions, 0 deletions
diff --git a/server/src/core/definition.lua b/server/src/core/definition.lua
new file mode 100644
index 00000000..3ca27b89
--- /dev/null
+++ b/server/src/core/definition.lua
@@ -0,0 +1,88 @@
+local function parseResultAcrossUri(positions, vm, result)
+    -- 跨越文件时，遍历的是值的绑定信息
+    for _, info in ipairs(result.value) do
+        if info.type == 'set' and info.source.uri == result.value.uri then
+            positions[1] = {
+                info.source.start,
+                info.source.finish,
+                info.source.uri,
+            }
+        end
+    end
+    if #positions == 0 then
+        for _, info in ipairs(result.value) do
+            if info.type == 'return' and info.source.uri == result.value.uri then
+                positions[1] = {
+                    info.source.start,
+                    info.source.finish,
+                    info.source.uri,
+                }
+            end
+        end
+    end
+    if #positions == 0 then
+        positions[1] = {
+            0, 0,
+            result.value.uri,
+        }
+    end
+end
+
+local function parseResult(vm, result)
+    local positions = {}
+    local tp = result.type
+    if     tp == 'local' then
+        if result.value.uri ~= vm.uri then
+            parseResultAcrossUri(positions, vm, result)
+        else
+            for _, info in ipairs(result) do
+                if info.type == 'local' then
+                    positions[#positions+1] = {
+                        info.source.start,
+                        info.source.finish,
+                        info.source.uri,
+                    }
+                end
+            end
+        end
+    elseif tp == 'field' then
+        if result.value.uri ~= vm.uri then
+            parseResultAcrossUri(positions, vm, result)
+        else
+            for _, info in ipairs(result) do
+                if info.type == 'set' then
+                    positions[#positions+1] = {
+                        info.source.start,
+                        info.source.finish,
+                        info.source.uri,
+                    }
+                end
+            end
+        end
+    elseif tp == 'label' then
+        for _, info in ipairs(result) do
+            if info.type == 'set' then
+                positions[#positions+1] = {
+                    info.source.start,
+                    info.source.finish,
+                }
+            end
+        end
+    elseif tp == 'string' then
+        -- require 'XXX' 专用
+        positions[#positions+1] = {
+            0,
+            0,
+            result.uri,
+        }
+    end
+    return positions
+end
+
+return function (vm, result)
+    if not result then
+        return nil
+    end
+    local positions = parseResult(vm, result)
+    return positions
+end