support `call`

5 files changed, 43 insertions, 10 deletions

diff --git a/script/config/template.lua b/script/config/template.lua
index c9ad2f4c..e928db78 100644
--- a/script/config/template.lua
+++ b/script/config/template.lua
@@ -54,8 +54,9 @@ end
 
 ---@class config.template
 ---@field [string] config.template
----@operator shl: config.template
----@operator shr: config.template
+---@operator shl:  config.template
+---@operator shr:  config.template
+---@operator call: config.template
 local Type = setmetatable({}, { __index = function (_, name)
     local unit = {}
     for k, v in pairs(units[name]) do
diff --git a/script/core/completion/completion.lua b/script/core/completion/completion.lua
index bc3760d9..c577874f 100644
--- a/script/core/completion/completion.lua
+++ b/script/core/completion/completion.lua
@@ -1743,7 +1743,7 @@ local function tryluaDocBySource(state, position, source, results)
                 results[#results+1] = {
                     label       = name,
                     kind        = define.CompletionItemKind.Operator,
-                    description = ('```lua\n%s\n```'):format(vm.UNARY_MAP[name]),
+                    description = ('```lua\n%s\n```'):format(vm.OP_UNARY_MAP[name]),
                 }
             end
         end
@@ -1752,10 +1752,20 @@ local function tryluaDocBySource(state, position, source, results)
                 results[#results+1] = {
                     label       = name,
                     kind        = define.CompletionItemKind.Operator,
-                    description = ('```lua\n%s\n```'):format(vm.BINARY_MAP[name]),
+                    description = ('```lua\n%s\n```'):format(vm.OP_BINARY_MAP[name]),
                 }
             end
         end
+        for _, name in ipairs(vm.OTHER_OP) do
+            if matchKey(source[1], name) then
+                results[#results+1] = {
+                    label       = name,
+                    kind        = define.CompletionItemKind.Operator,
+                    description = ('```lua\n%s\n```'):format(vm.OP_OTHER_MAP[name]),
+                }
+            end
+        end
+        return true
     end
     return false
 end
@@ -1871,14 +1881,21 @@ local function tryluaDocByErr(state, position, err, docState, results)
             results[#results+1] = {
                 label       = name,
                 kind        = define.CompletionItemKind.Operator,
-                description = ('```lua\n%s\n```'):format(vm.UNARY_MAP[name]),
+                description = ('```lua\n%s\n```'):format(vm.OP_UNARY_MAP[name]),
             }
         end
         for _, name in ipairs(vm.BINARY_OP) do
             results[#results+1] = {
                 label       = name,
                 kind        = define.CompletionItemKind.Operator,
-                description = ('```lua\n%s\n```'):format(vm.BINARY_MAP[name]),
+                description = ('```lua\n%s\n```'):format(vm.OP_BINARY_MAP[name]),
+            }
+        end
+        for _, name in ipairs(vm.OTHER_OP) do
+            results[#results+1] = {
+                label       = name,
+                kind        = define.CompletionItemKind.Operator,
+                description = ('```lua\n%s\n```'):format(vm.OP_OTHER_MAP[name]),
             }
         end
     end
diff --git a/script/core/diagnostics/unknown-operator.lua b/script/core/diagnostics/unknown-operator.lua
index 5e8177c3..7404b5ef 100644
--- a/script/core/diagnostics/unknown-operator.lua
+++ b/script/core/diagnostics/unknown-operator.lua
@@ -21,8 +21,9 @@ return function (uri, callback)
             local op = doc.op
             if op then
                 local opName = op[1]
-                if  not vm.BINARY_MAP[opName]
-                and not vm.UNARY_MAP[opName] then
+                if  not vm.OP_BINARY_MAP[opName]
+                and not vm.OP_UNARY_MAP[opName]
+                and not vm.OP_OTHER_MAP[opName] then
                     callback {
                         start   = doc.op.start,
                         finish  = doc.op.finish,
diff --git a/script/vm/compiler.lua b/script/vm/compiler.lua
index a13f1e3a..a9cd50cd 100644
--- a/script/vm/compiler.lua
+++ b/script/vm/compiler.lua
@@ -1472,6 +1472,9 @@ local compilerSwitch = util.switch()
             if not node then
                 return
             end
+            if node:isEmpty() then
+                node = vm.runOperator('call', vararg.node) or node
+            end
             vm.setNode(source, node)
         end
         if vararg.type == 'varargs' then
@@ -1490,6 +1493,9 @@ local compilerSwitch = util.switch()
         if not node then
             return
         end
+        if node:isEmpty() then
+            node = vm.runOperator('call', source.node) or node
+        end
         vm.setNode(source, node)
     end)
     : case 'doc.type'
diff --git a/script/vm/operator.lua b/script/vm/operator.lua
index 35910f94..69340648 100644
--- a/script/vm/operator.lua
+++ b/script/vm/operator.lua
@@ -24,6 +24,9 @@ vm.BINARY_OP = {
     'shr',
     'concat',
 }
+vm.OTHER_OP = {
+    'call',
+}
 
 local unaryMap = {
     ['-'] = 'unm',
@@ -47,8 +50,13 @@ local binaryMap = {
     ['..'] = 'concat',
 }
 
-vm.UNARY_MAP  = util.revertMap(unaryMap)
-vm.BINARY_MAP = util.revertMap(binaryMap)
+local otherMap = {
+    ['()'] = 'call',
+}
+
+vm.OP_UNARY_MAP  = util.revertMap(unaryMap)
+vm.OP_BINARY_MAP = util.revertMap(binaryMap)
+vm.OP_OTHER_MAP  = util.revertMap(otherMap)
 
 ---@param operators parser.object[]
 ---@param op string