feat: Update import statement syntax from import "path" to import("path").

zuisong · zuisong · commit a722dfed8cc0 · 2026-02-03T14:58:56.000+08:00
diff --git a/LANGUAGE_REFERENCE.md b/LANGUAGE_REFERENCE.md
@@ -39,7 +39,7 @@ Chen Lang 是一个简洁、动态类型的编程语言,具有以下特点:
 cargo run --bin chen_lang -- run demo_codes/fibonacci.ch
 
 # 从标准输入运行程序
-echo 'let io = import "stdlib/io"; io.println("Hello from stdin")' | cargo run --bin chen_lang -- run -
+echo 'let io = import("stdlib/io"); io.println("Hello from stdin")' | cargo run --bin chen_lang -- run -
 
 # 直接运行代码
 echo 'let x = 5; let y = 3; print(x + y)' | cargo run --bin chen_lang -- run -
@@ -696,14 +696,14 @@ Chen Lang 采用显式导入机制。除了极少数核心功能（如 `null`,
 ### 导入语法
 
 ```python
-let <变量名> = import "<模块路径>"
+let <变量名> = import("<模块路径>")
 ```
 
 示例:
 
 ```python
-let JSON = import "stdlib/json"
-let io = import "stdlib/io"
+let JSON = import("stdlib/json")
+let io = import("stdlib/io")
 ```
 
 ### 核心设计原则
@@ -740,10 +740,10 @@ ${
 在主程序中导入:
 
 ```python
-let math_utils = import "math_utils.ch"
+let math_utils = import("math_utils.ch")
 
 let result = math_utils.add(10, 20)
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 io.println(result)  # 30
 ```
 
@@ -752,8 +752,8 @@ io.println(result)  # 30
 ### 示例程序
 
 ```python
-let io = import "stdlib/io"
-let JSON = import "stdlib/json"
+let io = import("stdlib/io")
+let JSON = import("stdlib/json")
 
 let score = 85
 let level = if score >= 90 { "A" } else if score >= 60 { "P" } else { "F" }
diff --git a/demo_codes/9x9.ch b/demo_codes/9x9.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/christmas_tree.ch b/demo_codes/christmas_tree.ch
@@ -1,4 +1,4 @@
-let println = import "stdlib/io".println
+let println = import("stdlib/io").println
 
 # 简单的字符串重复函数
 def repeat(str, count) {
diff --git a/demo_codes/debug_test.ch b/demo_codes/debug_test.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/fibonacci.ch b/demo_codes/fibonacci.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/if_else.ch b/demo_codes/if_else.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/point_objects.ch b/demo_codes/point_objects.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/sum.ch b/demo_codes/sum.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test-class.ch b/demo_codes/test-class.ch
@@ -1,8 +1,8 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
-let JSON = import "stdlib/json"
-let Date = import "stdlib/date"
+let JSON = import("stdlib/json")
+let Date = import("stdlib/date")
 
 
 def NewPoint(x, y) {
diff --git a/demo_codes/test.ch b/demo_codes/test.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_concurrent_http.ch b/demo_codes/test_concurrent_http.ch
@@ -1,7 +1,7 @@
 # 并发 HTTP 请求示例
-let http = import "stdlib/http"
-let json = import "stdlib/json"
-let println = import "stdlib/io".println
+let http = import("stdlib/http")
+let json = import("stdlib/json")
+let println = import("stdlib/io").println
 
 println("测试并发 HTTP 请求...")
 
diff --git a/demo_codes/test_concurrent_simple.ch b/demo_codes/test_concurrent_simple.ch
@@ -1,5 +1,5 @@
 # 简单的并发测试 - 不使用 HTTP
-let println = import "stdlib/io".println
+let println = import("stdlib/io").println
 
 println("测试并发协程...")
 
diff --git a/demo_codes/test_debug.ch b/demo_codes/test_debug.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_float.ch b/demo_codes/test_float.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_func.ch b/demo_codes/test_func.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_func_direct.ch b/demo_codes/test_func_direct.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_func_return.ch b/demo_codes/test_func_return.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_json_precision.ch b/demo_codes/test_json_precision.ch
@@ -1,7 +1,7 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
-let JSON = import "stdlib/json"
+let JSON = import("stdlib/json")
 
 # StdLib: JSON Processing
 let data = ${
diff --git a/demo_codes/test_keys.ch b/demo_codes/test_keys.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_large_precision.ch b/demo_codes/test_large_precision.ch
@@ -1,7 +1,7 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
-let JSON = import "stdlib/json"
+let JSON = import("stdlib/json")
 
 let data = ${
     pi: 3.141592653589793,
diff --git a/demo_codes/test_loop.ch b/demo_codes/test_loop.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_loops.ch b/demo_codes/test_loops.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 
 # 1. Test condition-based loop (Go-style while)
 let i = 0
diff --git a/demo_codes/test_mixed.ch b/demo_codes/test_mixed.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_nine.ch b/demo_codes/test_nine.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_readline.ch b/demo_codes/test_readline.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 io.print("Please enter your name: ")
 let name = io.readline()
 io.println("Hello, " + name + "!")
diff --git a/demo_codes/test_simple.ch b/demo_codes/test_simple.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_simple_func.ch b/demo_codes/test_simple_func.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_string.ch b/demo_codes/test_string.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_string_expr.ch b/demo_codes/test_string_expr.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_try_catch_basic.ch b/demo_codes/test_try_catch_basic.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_try_catch_finally.ch b/demo_codes/test_try_catch_finally.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_try_catch_function.ch b/demo_codes/test_try_catch_function.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/demo_codes/test_try_catch_nested.ch b/demo_codes/test_try_catch_nested.ch
@@ -1,4 +1,4 @@
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let print = io.print
 let println = io.println
 
diff --git a/readme.md b/readme.md
@@ -26,7 +26,7 @@
 
 #### 1. Hello World & String Operations
 ```python
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let name = "Chen Lang"
 io.println("Hello, " + name + "!")
 # Output: Hello, Chen Lang!
diff --git a/readme_cn.md b/readme_cn.md
@@ -23,7 +23,7 @@
 
 #### 1. Hello World 与字符串操作
 ```python
-let io = import "stdlib/io"
+let io = import("stdlib/io")
 let name = "Chen Lang"
 io.println("Hello, " + name + "!")
 # 输出: Hello, Chen Lang!
diff --git a/src/chen.pest b/src/chen.pest
@@ -121,7 +121,7 @@ continue_stmt = { CONTINUE }
 try_catch = { TRY ~ block ~ CATCH ~ identifier? ~ block ~ (FINALLY ~ block)? }
 throw_stmt = { THROW ~ NEWLINE* ~ expression }
 // await_expr removed
-import_expr = { IMPORT ~ NEWLINE* ~ string }
+import_expr = { IMPORT ~ NEWLINE* ~ "(" ~ NEWLINE* ~ string ~ NEWLINE* ~ ")" }
 
 // 复合结构
 block = { "{" ~ NEWLINE* ~ (statement ~ stmt_sep)* ~ statement? ~ NEWLINE* ~ "}" }
diff --git a/src/expression.rs b/src/expression.rs
@@ -61,7 +61,7 @@ pub enum Expression {
     },
     /// 函数定义表达式 (匿名函数/Lambda)
     Function(FunctionDeclaration),
-    /// Import 表达式: import "path"
+    /// Import 表达式: import("path")
     Import {
         path: String,
         loc: Location,
diff --git a/src/lib.rs b/src/lib.rs
@@ -65,7 +65,7 @@ pub enum ChenError {
 
 #[test]
 fn test_run_captured() {
-    let code = r#"let io = import "stdlib/io"
+    let code = r#"let io = import("stdlib/io")
     io.print("Hello World")"#;
     let output = run_captured(code.to_string()).unwrap();
     assert_eq!(output, "Hello World");
diff --git a/src/parser/handwritten.rs b/src/parser/handwritten.rs
@@ -669,16 +669,21 @@ impl Parser {
             }
             // ASYNC check removed
             Token::Keyword(Keyword::IMPORT) => {
-                // import "path"
+                // import("path")
+                self.skip_newlines();
+                self.consume(&Token::LParen, "Expected '(' after 'import'")?;
                 self.skip_newlines();
                 if let Some(Token::String(s)) = self.advance() {
+                    let path = s.clone();
+                    self.skip_newlines();
+                    self.consume(&Token::RParen, "Expected ')' after import path")?;
                     Ok(Expression::Import {
-                        path: s.clone(),
+                        path,
                         loc: start_loc,
                     })
                 } else {
                     Err(ParseError::Message {
-                        msg: "Expected string path after 'import'".to_string(),
+                        msg: "Expected string path inside import(...)".to_string(),
                         loc: self.peek_location(),
                     })
                 }
diff --git a/src/tests/async_http_test.rs b/src/tests/async_http_test.rs
@@ -28,7 +28,7 @@ fn test_http_get_async() {
     let url = server.url();
     let code = format!(
         r#"
-    let http = import "stdlib/http"
+    let http = import("stdlib/http")
     let url = "{}/hello"
     let resp = http.request("GET", url)
     return resp.body
@@ -55,8 +55,8 @@ fn test_http_get_json_async() {
     let url = server.url();
     let code = format!(
         r#"
-    let http = import "stdlib/http"
-    let json = import "stdlib/json"
+    let http = import("stdlib/http")
+    let json = import("stdlib/json")
     let url = "{}/data"
     let resp = http.request("GET", url)
     let data = json.parse(resp.body)
@@ -73,7 +73,7 @@ fn test_http_get_json_async() {
 #[test]
 fn test_http_request_async_error_propagates() {
     let code = r#"
-    let http = import "stdlib/http"
+    let http = import("stdlib/http")
     try {
         http.request("BAD METHOD", "http://example.com")
         return "NO_ERROR"
diff --git a/src/tests/async_timer_test.rs b/src/tests/async_timer_test.rs
diff --git a/src/tests/coroutine_test.rs b/src/tests/coroutine_test.rs
diff --git a/src/tests/object_test.rs b/src/tests/object_test.rs
diff --git a/src/tests/sync_io_test.rs b/src/tests/sync_io_test.rs
diff --git a/tests/chen_lang_tests/language/arithmetic_tests.rs b/tests/chen_lang_tests/language/arithmetic_tests.rs
diff --git a/tests/chen_lang_tests/language/custom_import_tests.rs b/tests/chen_lang_tests/language/custom_import_tests.rs
diff --git a/tests/chen_lang_tests/language/import_tests.rs b/tests/chen_lang_tests/language/import_tests.rs
diff --git a/tests/chen_lang_tests/language/keys_tests.rs b/tests/chen_lang_tests/language/keys_tests.rs
diff --git a/tests/chen_lang_tests/misc/debug_tests.rs b/tests/chen_lang_tests/misc/debug_tests.rs
diff --git a/tests/chen_lang_tests/stdlib/http_tests.rs b/tests/chen_lang_tests/stdlib/http_tests.rs
diff --git a/tests/chen_lang_tests/stdlib/stdlib_tests.rs b/tests/chen_lang_tests/stdlib/stdlib_tests.rs
diff --git a/tests/common/mod.rs b/tests/common/mod.rs
diff --git a/tests/fixtures/cached_module.ch b/tests/fixtures/cached_module.ch
diff --git a/tests/fixtures/import_test.ch b/tests/fixtures/import_test.ch

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-let io = import "stdlib/io"`
	`1`	`+let io = import("stdlib/io")`
`2`	`2`	`let print = io.print`
`3`	`3`	`let println = io.println`
`4`	`4`
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-let println = import "stdlib/io".println`
	`1`	`+let println = import("stdlib/io").println`
`2`	`2`
`3`	`3`	`# 简单的字符串重复函数`
`4`	`4`	`def repeat(str, count) {`