Added mechanism to modularize for doing a compilation precheck

to determine files that have comnpilation or dependency problems.
A new -display-file-lists option use this to display lists of good files
(no compile errors), problem files, and a combined list with
problem files preceded by a '#'.  The problem files list can be
used in the module map generation assistant mode to exclude
problem files.  The combined files list can be used during module
map development.  See added docs.


git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@241880 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 32 insertions, 0 deletions

diff --git a/test/modularize/Inputs/CompileError/HasError.h b/test/modularize/Inputs/CompileError/HasError.h
new file mode 100644
index 00000000..4395cb16
--- /dev/null
+++ b/test/modularize/Inputs/CompileError/HasError.h
@@ -0,0 +1,2 @@
+typedef WithoutDep BadType;
+
diff --git a/test/modularize/Inputs/CompileError/Level1A.h b/test/modularize/Inputs/CompileError/Level1A.h
new file mode 100644
index 00000000..10eef678
--- /dev/null
+++ b/test/modularize/Inputs/CompileError/Level1A.h
@@ -0,0 +1 @@
+#define MACRO_1A 1
diff --git a/test/modularize/Inputs/CompileError/module.modulemap b/test/modularize/Inputs/CompileError/module.modulemap
new file mode 100644
index 00000000..fbb8e7db
--- /dev/null
+++ b/test/modularize/Inputs/CompileError/module.modulemap
@@ -0,0 +1,10 @@
+// module.map

+

+module Level1A {

+  header "Level1A.h"

+  export *

+}

+module HasError {

+  header "HasError.h"

+  export *

+}

diff --git a/test/modularize/ProblemsCompileError.modularize b/test/modularize/ProblemsCompileError.modularize
new file mode 100644
index 00000000..a7ad2986
--- /dev/null
+++ b/test/modularize/ProblemsCompileError.modularize
@@ -0,0 +1,3 @@
+# RUN: not modularize %S/Inputs/CompileError/module.modulemap 2>&1 | FileCheck %s
+
+# CHECK: {{.*}}{{[/\\]}}Inputs{{[/\\]}}CompileError{{[/\\]}}HasError.h:1:9: error: unknown type name 'WithoutDep'
diff --git a/test/modularize/ProblemsDisplayLists.modularize b/test/modularize/ProblemsDisplayLists.modularize
new file mode 100644
index 00000000..31be95c6
--- /dev/null
+++ b/test/modularize/ProblemsDisplayLists.modularize
@@ -0,0 +1,16 @@
+# RUN: not modularize -display-file-lists %S/Inputs/CompileError/module.modulemap 2>&1 | FileCheck %s
+
+# CHECK: {{.*}}{{[/\\]}}Inputs{{[/\\]}}CompileError{{[/\\]}}HasError.h:1:9: error: unknown type name 'WithoutDep'
+
+# CHECK: These are the files with possible errors:
+
+# CHECK: Inputs/CompileError/HasError.h
+
+# CHECK: These are the files with no detected errors:
+
+# CHECK: Inputs/CompileError/Level1A.h
+
+# CHECK: These are the combined files, with problem files preceded by #:
+
+# CHECK: {{.*}}Inputs/CompileError/HasError.h
+# CHECK: Inputs/CompileError/Level1A.h