feat(pproc): 修改宏展开器以支持连续函数式宏调用

修改了预处理器宏展开功能，将输出类型从环形缓冲区改为向量，
并实现了对连续函数式宏调用的支持。现在可以正确处理像
g(z) -> f(x * (z)) 这样的宏替换场景，其中标识符可能被重新
定义为新的函数式宏。

BREAKING CHANGE: 函数签名 scc_pproc_expand_by_vec 的输出参数
从 scc_lexer_tok_ring_t* 改为 scc_lexer_tok_vec_t*

libs/pproc/include/pproc_expand.h

@@ -29,7 +29,7 @@ void scc_pproc_expand_by_src(scc_pproc_macro_table_t *macro_table,
                              const scc_pproc_macro_t *macro);
 void scc_pproc_expand_by_vec(scc_pproc_macro_table_t *macro_table,
                              scc_lexer_tok_vec_t *input,
-                             scc_lexer_tok_ring_t *output,
+                             scc_lexer_tok_vec_t *output,
                              cbool need_parse_defined);
 
 #endif /* __SCC_PPROC_EXPAND_H__ */

libs/pproc/src/pproc_directive.c

@@ -168,8 +168,10 @@ static void scc_pproc_parse_line_and_expand(scc_pproc_t *pp,
         if (tok.type == SCC_TOK_ENDLINE)
             break;
     }
-    scc_pproc_expand_by_vec(&pp->macro_table, &org_toks, out_ring,
+    scc_lexer_tok_vec_t out_vec;
+    scc_pproc_expand_by_vec(&pp->macro_table, &org_toks, &out_vec,
                             need_parse_defined);
+    *out_ring = scc_lexer_array_to_ring(&out_vec);
 }
 
 /*

libs/pproc/src/pproc_expand.c

@@ -2,6 +2,10 @@
 #include <scc_lexer_utils.h>
 #include <scc_pproc.h>
 
+static void rescan(scc_pproc_expand_t *expand_ctx,
+                   const scc_pproc_macro_t *macro,
+                   scc_lexer_tok_vec_t *tok_buffer);
+
 static scc_lexer_tok_t stringify_argument(scc_lexer_tok_vec_t *arg_tokens) {
     // WRITE BY AI
     scc_cstring_t str = scc_cstring_create();
@@ -104,13 +108,26 @@ void scc_pproc_expand_by_src(scc_pproc_macro_table_t *macro_table,
         scc_vec_push(expaned_buffer, tok);
         scc_pproc_parse_macro_arguments(input, &expaned_buffer, true);
     }
+    while (1) {
+        scc_ring_peek(*input, tok, ok);
+        if (ok == false) {
+            break;
+        }
+        if (tok.type == SCC_TOK_L_PAREN) {
+            scc_pproc_parse_macro_arguments(input, &expaned_buffer, true);
+        } else {
+            break;
+        }
+    }
 
-    scc_pproc_expand_by_vec(macro_table, &expaned_buffer, output, false);
+    scc_lexer_tok_vec_t output_vec;
+    scc_pproc_expand_by_vec(macro_table, &expaned_buffer, &output_vec, false);
+    *output = scc_lexer_array_to_ring(&output_vec);
 }
 
 void scc_pproc_expand_by_vec(scc_pproc_macro_table_t *macro_table,
                              scc_lexer_tok_vec_t *input,
-                             scc_lexer_tok_ring_t *output,
+                             scc_lexer_tok_vec_t *output,
                              cbool need_parse_defined) {
     scc_pproc_expand_t ctx;
     scc_lexer_tok_ring_t ring = scc_lexer_array_to_ring(input);
@@ -124,7 +141,7 @@ void scc_pproc_expand_by_vec(scc_pproc_macro_table_t *macro_table,
 
     scc_pproc_marco_table_init(ctx.expanded_set);
     scc_pproc_expand_macro(&ctx);
-    *output = scc_lexer_array_to_ring(&ctx.output);
+    *output = ctx.output;
     scc_pproc_macro_table_drop(ctx.expanded_set);
 }
 
@@ -240,17 +257,51 @@ static void rescan(scc_pproc_expand_t *expand_ctx,
                    scc_lexer_tok_vec_t *tok_buffer) {
     scc_pproc_expand_t rescan_ctx;
 
-    disable(expand_ctx, macro);
-
     scc_lexer_tok_ring_t ring = scc_lexer_array_to_ring(tok_buffer);
     scc_copy_expand(expand_ctx, &rescan_ctx, &ring);
+
+    disable(expand_ctx, macro);
     scc_pproc_expand_macro(&rescan_ctx);
+    enable(expand_ctx, macro);
+
     scc_ring_free(ring);
     scc_vec_foreach(rescan_ctx.output, i) {
         scc_vec_push(expand_ctx->output, scc_vec_at(rescan_ctx.output, i));
     }
 
-    enable(expand_ctx, macro);
+    if (scc_vec_size(expand_ctx->output) == 0) {
+        return;
+    }
+
+    scc_lexer_tok_t *end_tok =
+        &scc_vec_at(expand_ctx->output, scc_vec_size(expand_ctx->output) - 1);
+
+    if (scc_get_tok_subtype(end_tok->type) != SCC_TOK_SUBTYPE_IDENTIFIER) {
+        return;
+    }
+
+    scc_pproc_macro_t *end_macro =
+        scc_pproc_macro_table_get(expand_ctx->macro_table, &end_tok->lexeme);
+    if (end_macro == null || end_macro->type != SCC_PP_MACRO_FUNCTION) {
+        return;
+    }
+
+    int ok = false;
+    scc_lexer_tok_t tok;
+    scc_ring_peek(*expand_ctx->input, tok, ok);
+    if (ok && tok.type == SCC_TOK_L_PAREN) {
+        scc_lexer_tok_vec_t expaned_buffer;
+        scc_vec_init(expaned_buffer);
+        scc_vec_push(expaned_buffer, scc_vec_pop(expand_ctx->output));
+        scc_pproc_parse_macro_arguments(expand_ctx->input, &expaned_buffer,
+                                        true);
+        scc_lexer_tok_vec_t output = {0};
+        scc_pproc_expand_by_vec(expand_ctx->macro_table, &expaned_buffer,
+                                &output, expand_ctx->need_parse_defined);
+        scc_vec_foreach(output, i) {
+            scc_vec_push(expand_ctx->output, scc_vec_at(output, i));
+        }
+    }
 }
 
 static int find_params(const scc_lexer_tok_t *tok,

libs/pproc/tests/test_pproc_unit.c

@@ -172,10 +172,12 @@ static void test_define_nested_macros(void) {
                           "f(x(0) * (f(x(0) * (x(0)))))\n"
                           "f(x(0) * (f(x(0) * (a))))\n");
 
-    TEST_CASE("NO NAME");
+    TEST_CASE("replace got new function-like macro");
-    CHECK_PP_OUTPUT_EXACT("#define f() int\n"
+    CHECK_PP_OUTPUT_EXACT("#define f(a) f(x * (a))\n"
-                          "f()\n",
+                          "#define g f\n"
-                          "int\n");
+                          "#define x 2\n"
+                          "g(z)\n",
+                          "f(2 * (z))\n");
 }
 
 static void test_undef_macros(void) {