feat: 関数呼び出し時 暗黙の型cast matcher を追加

clang-query/downcast-bug/func-arg-imp-downcast.c

@@ -0,0 +1,20 @@
+#include <limits.h>
+#include <math.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <time.h>
+
+void timet_to_int(int n) {
+ printf("%d\n", n);
+ return;
+}
+
+int main(void) {
+ time_t t = INT_MAX + 1;
+ timet_to_int(t);
+ timet_to_int((time_t)INT_MAX + 1);
+
+ return 0;
+}

clang-query/downcast-bug/func-arg-imp-downcast.matcher

@@ -0,0 +1,20 @@
+set bind-root true
+set print-matcher true
+enable output dump
+
+matcher callExpr(hasAnyArgument(implicitCastExpr(hasImplicitDestinationType(asString("int")),has(expr(hasType(anyOf(asString("time_t"),asString("__time_t"),asString("long"))))))))
+
+# 引数のいずれかが int 型の関数の呼び出し式のうち、引数に time_t 型の式を代入している式 への Matcher
+
+# callExpr(
+# hasAnyArgument(implicitCastExpr(
+# hasImplicitDestinationType(asString("int")),
+# has(expr(
+# hasType(anyOf(
+# asString("time_t"),
+# asString("__time_t"),
+# asString("long")
+# ))
+# ))
+# )
+# ))