CMP0010: Remove support for OLD behavior

Help/policy/CMP0010.rst

@@ -1,6 +1,9 @@
 CMP0010
 -------
 
+.. |REMOVED_IN_CMAKE_VERSION| replace:: 4.0
+.. include:: REMOVED_PROLOGUE.txt
+
 Bad variable reference syntax is an error.
 
 In CMake 2.6.2 and below, incorrect variable reference syntax such as
@@ -14,7 +17,5 @@ If :policy:`CMP0053` is set to ``NEW``, this policy has no effect
 and is treated as always being ``NEW``.
 
 .. |INTRODUCED_IN_CMAKE_VERSION| replace:: 2.6.3
-.. |WARNS_OR_DOES_NOT_WARN| replace:: warns
-.. include:: STANDARD_ADVICE.txt
-
-.. include:: DEPRECATED.txt
+.. |WARNED_OR_DID_NOT_WARN| replace:: warned
+.. include:: REMOVED_EPILOGUE.txt

Source/cmMakefile.cxx

@@ -2880,30 +2880,7 @@ MessageType cmMakefile::ExpandVariablesInStringOld(
       error += cmStrCat("at\n  ", filename, ':', line, '\n');
     }
     error += cmStrCat("when parsing string\n  ", source, '\n', emsg);
-
-    // If the parser failed ("res" is false) then this is a real
-    // argument parsing error, so the policy applies.  Otherwise the
-    // parser reported an error message without failing because the
-    // helper implementation is unhappy, which has always reported an
-    // error.
     mtype = MessageType::FATAL_ERROR;
-    if (!res) {
-      // This is a real argument parsing error.  Use policy CMP0010 to
-      // decide whether it is an error.
-      switch (this->GetPolicyStatus(cmPolicies::CMP0010)) {
-        case cmPolicies::WARN:
-          error +=
-            cmStrCat('\n', cmPolicies::GetPolicyWarning(cmPolicies::CMP0010));
-          CM_FALLTHROUGH;
-        case cmPolicies::OLD:
-          // OLD behavior is to just warn and continue.
-          mtype = MessageType::AUTHOR_WARNING;
-          break;
-        case cmPolicies::NEW:
-          // NEW behavior is to report the error.
-          break;
-      }
-    }
     errorstr = std::move(error);
   }
   return mtype;
@@ -3236,9 +3213,6 @@ MessageType cmMakefile::ExpandVariablesInStringNew(
 
   // Check for open variable references yet.
   if (!error && !openstack.empty()) {
-    // There's an open variable reference waiting.  Policy CMP0010 flags
-    // whether this is an error or not.  The new parser now enforces
-    // CMP0010 as well.
     errorstr += "There is an unterminated variable reference.";
     error = true;
   }

Source/cmPolicies.h

@@ -44,7 +44,7 @@ class cmMakefile;
          "FILE GLOB_RECURSE calls should not follow symlinks by default.", 2, \
          6, 2, NEW)                                                           \
   SELECT(POLICY, CMP0010, "Bad variable reference syntax is an error.", 2, 6, \
-         3, WARN)                                                             \
+         3, NEW)                                                              \
   SELECT(POLICY, CMP0011,                                                     \
          "Included scripts do automatic cmake_policy PUSH and POP.", 2, 6, 3, \
          WARN)                                                                \

Tests/RunCMake/Syntax/CMakeLists.txt

@@ -1,3 +1,3 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.0)
 project(${RunCMake_TEST} NONE)
 include(${RunCMake_TEST}.cmake)

Tests/RunCMake/Syntax/RunCMakeTest.cmake

@@ -69,7 +69,6 @@ run_cmake(UnterminatedCall2)
 run_cmake(UnterminatedString)
 run_cmake(UnterminatedBrace0)
 run_cmake(UnterminatedBrace1)
-run_cmake(UnterminatedBrace2)
 run_cmake(UnterminatedBracket0)
 run_cmake(UnterminatedBracket1)
 run_cmake(UnterminatedBracketComment)

Tests/RunCMake/Syntax/UnterminatedBrace1-stderr.txt

@@ -1,4 +1,4 @@
-CMake Warning \(dev\) at UnterminatedBrace1.cmake:2 \(set\):
+CMake Error at UnterminatedBrace1.cmake:2 \(set\):
   Syntax error in cmake code at
 
     .*/Tests/RunCMake/Syntax/UnterminatedBrace1.cmake:2
@@ -7,7 +7,6 @@ CMake Warning \(dev\) at UnterminatedBrace1.cmake:2 \(set\):
 
     \${
 
-  syntax error, unexpected end of file, expecting } \(3\)
+  There is an unterminated variable reference.
 Call Stack \(most recent call first\):
   CMakeLists.txt:3 \(include\)
-This warning is for project developers.  Use -Wno-dev to suppress it.

Tests/RunCMake/Syntax/UnterminatedBrace1.cmake

@@ -1,2 +1,2 @@
-cmake_policy(SET CMP0010 OLD)
+cmake_policy(SET CMP0053 NEW)
 set(var "${")

Tests/RunCMake/Syntax/UnterminatedBrace2-stderr.txt

@@ -1,12 +0,0 @@
-CMake Error at UnterminatedBrace2.cmake:3 \(set\):
-  Syntax error in cmake code at
-
-    .*/Tests/RunCMake/Syntax/UnterminatedBrace2.cmake:3
-
-  when parsing string
-
-    \${
-
-  There is an unterminated variable reference.
-Call Stack \(most recent call first\):
-  CMakeLists.txt:3 \(include\)

Tests/RunCMake/Syntax/UnterminatedBrace2.cmake

@@ -1,3 +0,0 @@
-cmake_policy(SET CMP0010 OLD)
-cmake_policy(SET CMP0053 NEW)
-set(var "${")