chore: import upstream snapshot with attribution

2026-07-13 12:29:30 +08:00
commit e7738de6d2
1723 changed files with 216139 additions and 0 deletions
@@ -0,0 +1,24 @@
+#ifndef ZERO_C_DIRECT_EMIT_H
+#define ZERO_C_DIRECT_EMIT_H
+
+#include "zero.h"
+
+#include <stdio.h>
+
+static inline bool z_direct_exe_reject_c_import_calls(const IrProgram *program, ZDiag *diag, const char *backend_name) {
+  if (!program || program->direct_c_import_call_count == 0) return true;
+  const char *symbol = (program->external_function_len > 0 && program->external_functions[0].symbol) ? program->external_functions[0].symbol : "extern C call";
+  if (diag) {
+    diag->code = 4004;
+    diag->line = 1;
+    diag->column = 1;
+    diag->length = 1;
+    snprintf(diag->message, sizeof(diag->message), "direct %s executable backend requires object emission and an explicit link step for extern C calls", backend_name ? backend_name : "native");
+    snprintf(diag->expected, sizeof(diag->expected), "direct executable without extern C calls");
+    snprintf(diag->actual, sizeof(diag->actual), "%s", symbol);
+    snprintf(diag->help, sizeof(diag->help), "emit an object and link it with the required C libraries");
+  }
+  return false;
+}
+
+#endif