foreach: Allow multiple iteration variables for `ZIP_LIST` mode

15 files changed, 81 insertions, 0 deletions

diff --git a/Tests/RunCMake/foreach/RunCMakeTest.cmake b/Tests/RunCMake/foreach/RunCMakeTest.cmake
index 371a0cb..8f50203 100644
--- a/Tests/RunCMake/foreach/RunCMakeTest.cmake
+++ b/Tests/RunCMake/foreach/RunCMakeTest.cmake
@@ -2,8 +2,13 @@ include(RunCMake)
 
 run_cmake(BadRangeInFunction)
 run_cmake(foreach-all-test)
+run_cmake(foreach-ITEMS-multiple-iter-vars-test)
+run_cmake(foreach-LISTS-multiple-iter-vars-test)
 run_cmake(foreach-ZIP_LISTS-test)
 run_cmake(foreach-ITEMS-with-ZIP_LISTS-mix-test)
 run_cmake(foreach-LISTS-with-ZIP_LISTS-mix-test)
 run_cmake(foreach-ZIP_LISTS-with-ITEMS-mix-test)
 run_cmake(foreach-ZIP_LISTS-with-LISTS-mix-test)
+run_cmake(foreach-ZIP_LISTS-multiple-iter-vars-test)
+run_cmake(foreach-ZIP_LISTS-iter-vars-mismatch-test-1)
+run_cmake(foreach-ZIP_LISTS-iter-vars-mismatch-test-2)
diff --git a/Tests/RunCMake/foreach/foreach-ITEMS-multiple-iter-vars-test-result.txt b/Tests/RunCMake/foreach/foreach-ITEMS-multiple-iter-vars-test-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ITEMS-multiple-iter-vars-test-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/foreach/foreach-ITEMS-multiple-iter-vars-test-stderr.txt b/Tests/RunCMake/foreach/foreach-ITEMS-multiple-iter-vars-test-stderr.txt
new file mode 100644
index 0000000..d174bb1
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ITEMS-multiple-iter-vars-test-stderr.txt
@@ -0,0 +1,4 @@
+^CMake Error at foreach-ITEMS-multiple-iter-vars-test.cmake:1 \(foreach\):
+  ITEMS or LISTS require exactly one iteration variable
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/foreach/foreach-ITEMS-multiple-iter-vars-test.cmake b/Tests/RunCMake/foreach/foreach-ITEMS-multiple-iter-vars-test.cmake
new file mode 100644
index 0000000..55d33a8
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ITEMS-multiple-iter-vars-test.cmake
@@ -0,0 +1,2 @@
+foreach(one two IN ITEMS one two)
+endforeach()
diff --git a/Tests/RunCMake/foreach/foreach-LISTS-multiple-iter-vars-test-result.txt b/Tests/RunCMake/foreach/foreach-LISTS-multiple-iter-vars-test-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-LISTS-multiple-iter-vars-test-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/foreach/foreach-LISTS-multiple-iter-vars-test-stderr.txt b/Tests/RunCMake/foreach/foreach-LISTS-multiple-iter-vars-test-stderr.txt
new file mode 100644
index 0000000..f2f83c2
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-LISTS-multiple-iter-vars-test-stderr.txt
@@ -0,0 +1,4 @@
+^CMake Error at foreach-LISTS-multiple-iter-vars-test.cmake:1 \(foreach\):
+  ITEMS or LISTS require exactly one iteration variable
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/foreach/foreach-LISTS-multiple-iter-vars-test.cmake b/Tests/RunCMake/foreach/foreach-LISTS-multiple-iter-vars-test.cmake
new file mode 100644
index 0000000..78f3847
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-LISTS-multiple-iter-vars-test.cmake
@@ -0,0 +1,2 @@
+foreach(one two IN LISTS one two)
+endforeach()
diff --git a/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-1-result.txt b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-1-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-1-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-1-stderr.txt b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-1-stderr.txt
new file mode 100644
index 0000000..fa51e46
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-1-stderr.txt
@@ -0,0 +1,4 @@
+^CMake Error at foreach-ZIP_LISTS-iter-vars-mismatch-test-1.cmake:1 \(foreach\):
+  Expected 3 list variables, but given 4
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-1.cmake b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-1.cmake
new file mode 100644
index 0000000..458b6ca
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-1.cmake
@@ -0,0 +1,2 @@
+foreach(less than lists IN ZIP_LISTS list_1 list_2 list_3 list_4)
+endforeach()
diff --git a/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-2-result.txt b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-2-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-2-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-2-stderr.txt b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-2-stderr.txt
new file mode 100644
index 0000000..7b6b484
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-2-stderr.txt
@@ -0,0 +1,4 @@
+^CMake Error at foreach-ZIP_LISTS-iter-vars-mismatch-test-2.cmake:1 \(foreach\):
+  Expected 3 list variables, but given 2
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
diff --git a/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-2.cmake b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-2.cmake
new file mode 100644
index 0000000..d24d99c
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-iter-vars-mismatch-test-2.cmake
@@ -0,0 +1,2 @@
+foreach(greater than lists IN ZIP_LISTS list_1 list_2)
+endforeach()
diff --git a/Tests/RunCMake/foreach/foreach-ZIP_LISTS-multiple-iter-vars-test-stdout.txt b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-multiple-iter-vars-test-stdout.txt
new file mode 100644
index 0000000..e009d15
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-multiple-iter-vars-test-stdout.txt
@@ -0,0 +1,6 @@
+-- foreach\(\.\.\. IN ZIP_LISTS\):
+--   Begin output
+--   | one, satu, raz
+--   | two, dua, dva
+--   | three, tiga, tri
+--   End output
diff --git a/Tests/RunCMake/foreach/foreach-ZIP_LISTS-multiple-iter-vars-test.cmake b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-multiple-iter-vars-test.cmake
new file mode 100644
index 0000000..9647dea
--- /dev/null
+++ b/Tests/RunCMake/foreach/foreach-ZIP_LISTS-multiple-iter-vars-test.cmake
@@ -0,0 +1,42 @@
+function(foreachTest result list_var_1 list_var_2 list_var_3)
+    set(_options MUTE)
+    set(_one_value_args)
+    set(_multi_value_args)
+    cmake_parse_arguments(PARSE_ARGV 3 _arg "${_options}" "${_one_value_args}" "${_multi_value_args}")
+
+    set(_has_any_output FALSE)
+    list(APPEND CMAKE_MESSAGE_INDENT "| ")
+    foreach(first second third IN ZIP_LISTS ${list_var_1} ${list_var_2} ${list_var_3})
+        if(NOT first)
+            set(first "[undefiend]")
+        endif()
+        if(NOT second)
+            set(second "[undefiend]")
+        endif()
+        if(NOT third)
+            set(third "[undefiend]")
+        endif()
+        if(NOT _arg_MUTE)
+            message(STATUS "${first}, ${second}, ${third}")
+        endif()
+        set(_has_any_output TRUE)
+    endforeach()
+    set(${result} ${_has_any_output} PARENT_SCOPE)
+endfunction()
+
+function(foreachTestDecorated list_var_1 list_var_2 list_var_3)
+    list(APPEND CMAKE_MESSAGE_INDENT "  ")
+    message(STATUS "Begin output")
+    foreachTest(_has_any_output ${list_var_1} ${list_var_2} ${list_var_3})
+    if(NOT _has_any_output)
+        message(STATUS "--> empty-output <--")
+    endif()
+    message(STATUS "End output")
+endfunction()
+
+list(APPEND english one two three)
+list(APPEND bahasa satu dua tiga)
+list(APPEND russian raz dva tri)
+
+message(STATUS "foreach(... IN ZIP_LISTS):")
+foreachTestDecorated(english bahasa russian)