wip: working on analyzer

- Feat: add assigns analysis
- Fix: change node check condition in binary math analysis
- Feat: add unary and binary conditions analysis
- Fix: add type passtrough in declaration analysis
- Feat: add unary math analysis

src/compiler/analyzer/an_unarymath.c

@@ -0,0 +1,32 @@
+#include <common/fzl_types.h>
+#include <compiler/fzl_analyzer.h>
+#include <compiler/fzl_parser.h>
+#include <stdbool.h>
+
+// Analyze unary arithmetic
+fzl_an_res_t analyze_unarymath(fzl_analyzer_t *analyzer, fzl_node_t *unary)
+{
+  if (!analyzer)
+    return (fzl_an_res_t){.error = true};
+
+  if (!unary || (unary->type != FZL_NODETYPE_UNARY_MINUS &&
+                 unary->type != FZL_NODETYPE_UNARY_PLUS))
+  {
+    an_push_error(analyzer, NULL, "node is not typeof unary math");
+    return (fzl_an_res_t){.error = true};
+  }
+
+  fzl_an_res_t operand_res = analyze_common(analyzer, unary->unary_op.operand);
+  if (operand_res.error)
+    return (fzl_an_res_t){.error = true};
+
+  if (operand_res.type < FZL_TYPE_INT8)
+  {
+    an_push_error(analyzer, unary->unary_op.operand->token,
+                  "unary operator only support integer types");
+    return (fzl_an_res_t){.error = true};
+  }
+
+  return (fzl_an_res_t){
+      .error = false, .type = operand_res.type, .classname = NULL};
+}