[Lldb-commits] [lldb] [LLDB] Add field member operators to DIL (PR #138093)

[Pavel Labath via lldb-commits]

================
@@ -0,0 +1,59 @@
+int
+main(int argc, char**argv)
+{
+  int x = 2;
+  struct Sx {
+    int x;
+    int& r;
+    char y;
+  } s{1, x, 2};
+
+  Sx& sr = s;
+  Sx* sp = &s;
+
+  Sx sarr[2] = {{5, x, 2}, {1, x, 3}};
+
+  using SxAlias = Sx;
+  SxAlias sa{3, x, 4};
+
+  return 0; // Set a breakpoint here
+}
+
+/*
+  EXPECT_THAT(Eval("s.x"), IsEqual("1"));
+  EXPECT_THAT(Eval("s.r"), IsEqual("2"));
+  EXPECT_THAT(Eval("s.r + 1"), IsEqual("3"));
+  EXPECT_THAT(Eval("sr.x"), IsEqual("1"));
+  EXPECT_THAT(Eval("sr.r"), IsEqual("2"));
+  EXPECT_THAT(Eval("sr.r + 1"), IsEqual("3"));
+  EXPECT_THAT(Eval("sp->x"), IsEqual("1"));
+  EXPECT_THAT(Eval("sp->r"), IsEqual("2"));
+  EXPECT_THAT(Eval("sp->r + 1"), IsEqual("3"));
+  EXPECT_THAT(Eval("sarr->x"), IsEqual("5"));
+  EXPECT_THAT(Eval("sarr->r"), IsEqual("2"));
+  EXPECT_THAT(Eval("sarr->r + 1"), IsEqual("3"));
+  EXPECT_THAT(Eval("(sarr + 1)->x"), IsEqual("1"));
+
+  EXPECT_THAT(
+      Eval("sp->4"),
+      IsError(
+          "<expr>:1:5: expected 'identifier', got: <'4' (numeric_constant)>\n"
+          "sp->4\n"
+          "    ^"));
+  EXPECT_THAT(Eval("sp->foo"), IsError("no member named 'foo' in 'Sx'"));
+  EXPECT_THAT(
+      Eval("sp->r / (void*)0"),
+      IsError("invalid operands to binary expression ('int' and 'void *')"));
+
+  EXPECT_THAT(Eval("sp.x"), IsError("member reference type 'Sx *' is a "
+                                    "pointer; did you mean to use '->'"));
+  EXPECT_THAT(
+      Eval("sarr.x"),
+      IsError(
+          "member reference base type 'Sx[2]' is not a structure or union"));
+
+  // Test for record typedefs.
+  EXPECT_THAT(Eval("sa.x"), IsEqual("3"));
+  EXPECT_THAT(Eval("sa.y"), IsEqual("'\\x04'"));
+
+*/
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labath wrote:

??

https://github.com/llvm/llvm-project/pull/138093