From 70e2c7ad2e891ccecbf59a0562586538de96aeaa Mon Sep 17 00:00:00 2001
From: Haojian Wu <hokein.wu@gmail.com>
Date: Mon, 20 Jul 2020 15:29:14 +0200
Subject: [PATCH] [AST][RecoveryExpr] Add recovery-ast tests for C language,
 NFC.

some examples are working already.

Differential Revision: https://reviews.llvm.org/D84146
---
 clang/test/AST/ast-dump-recovery.c | 41 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 clang/test/AST/ast-dump-recovery.c

diff --git a/clang/test/AST/ast-dump-recovery.c b/clang/test/AST/ast-dump-recovery.c
new file mode 100644
index 0000000..b49c010
--- /dev/null
+++ b/clang/test/AST/ast-dump-recovery.c
@@ -0,0 +1,41 @@
+// RUN: not %clang_cc1 -triple x86_64-unknown-unknown -frecovery-ast -fno-recovery-ast-type -ast-dump %s | FileCheck -strict-whitespace %s
+
+int some_func(int);
+
+// CHECK:     VarDecl {{.*}} unmatch_arg_call 'int' cinit
+// CHECK-NEXT: `-RecoveryExpr {{.*}} contains-errors
+// CHECK-NEXT:   `-DeclRefExpr {{.*}} 'some_func'
+int unmatch_arg_call = some_func();
+
+const int a = 1;
+
+// CHECK:     VarDecl {{.*}} postfix_inc
+// CHECK-NEXT: `-RecoveryExpr {{.*}} contains-errors
+// CHECK-NEXT:   `-DeclRefExpr {{.*}} 'a'
+int postfix_inc = a++;
+
+// CHECK:     VarDecl {{.*}} unary_address
+// CHECK-NEXT:`-RecoveryExpr {{.*}} contains-errors
+// CHECK-NEXT:  `-ParenExpr {{.*}}
+// CHECK-NEXT:    `-BinaryOperator {{.*}} '+'
+// CHECK-NEXT:      |-ImplicitCastExpr
+// CHECK-NEXT:      | `-DeclRefExpr {{.*}} 'a'
+// CHECK-NEXT:      `-IntegerLiteral {{.*}} 'int'
+int unary_address = &(a + 1);
+
+// CHECK:       VarDecl {{.*}} ternary 'int' cinit
+// CHECK-NEXT:  `-RecoveryExpr {{.*}}
+// CHECK-NEXT:    |-DeclRefExpr {{.*}} 'a'
+// CHECK-NEXT:    |-TypoExpr {{.*}}
+// CHECK-NEXT:    `-DeclRefExpr {{.*}} 'a'
+// FIXME: The TypoExpr should never be print, and should be downgraded to
+// RecoveryExpr -- typo correction is performed too early in C-only codepath,
+// which makes no correction when clang finishes the full expr (Sema::Sema::ActOnFinishFullExpr).
+// this will be fixed when we support dependent mechanism and delayed typo correction for C.
+int ternary = a ? undef : a;
+
+void test1() {
+  // CHECK:     `-RecoveryExpr {{.*}} contains-errors
+  // CHECK-NEXT:  `-DeclRefExpr {{.*}} 'a' 'const int'
+  static int foo = a++; // verify no crash on local static var decl.
+}
-- 
2.7.4