!ifndef file_is_included
!define file_is_included

Name preprocessor
OutFile preprocessor.exe

!ifdef some_define_that_doesnt_exist
this should not be executed, so no error should be raised
/*
code inside comments should not be executed
!ifdef
*/
# invalid preprocessor should be ignored
!hello
!endif

!ifdef d1
!error "d1 is not defined!"
!else ifdef d2
!error "d2 is not defined!"
!else
# this should be compiled
!endif

!define d1

!ifdef d1
# this should be compiled
!else ifdef d2
!error "d2 is not defined!"
!else
!error "d1 is defined!"
!endif

!undef d1
!define d2

!ifdef d1
!error "d1 is not defined!"
!else ifdef d2
# this should be compiled
!else
!error "d2 is defined!"
!endif

!ifdef some_define_that_doesnt_exist
the next !endif should be part of this line\
!endif
!\
e\
n\
d\
i\
f

!if 0
/*
this shouldn't be compiled
!endif
*/
!endif

# tests for !if statement
!if 'test' == 'test'
 !if 1 <= 2
  !if ! 100 < 99.99
   !if 2.2 > 1.12
    !if ! 23 >= 37
     !if 1 && 1
      !if ! 0 || 0

        # this should be compiled

      !else
       !error "!if ! 0 || 0 is true!"
      !endif
     !else
      !error "!if 1 && 1 is true!"
     !endif
    !else
     !error "!if ! 23 >= 37 is true!"
    !endif
   !else
    !error "!if 2.2 > 1.12 is true!"
   !endif
  !else
   !error "!if ! 100 < 99.99 is true!"
  !endif
 !else
  !error "!if 1 <= 2 is true!"
 !endif
!else
 !error "!if 'test' == 'test' is true!"
!endif

; testing of two math functions and a macro hack :)
!define increase "!insertmacro increase"
!macro increase DEFINE
  !define /math ${DEFINE}_MACROTEMP ${${DEFINE}} + 1
  !undef ${DEFINE}
  !define ${DEFINE} ${${DEFINE}_MACROTEMP}
  !undef ${DEFINE}_MACROTEMP
!macroend

!define number1 1 #  1
!define /math number2 2 + 3
!define /math number3 ${number2} - ${number1}
${increase} number3
!define /math number4 2 * ${number3}
!define /math number5 ${number4} % 3

!if ${number1} != 1
  !error "number1 != 1"
!endif

!if ${number2} != 5
  !error "number2 != 5"
!endif

!if ${number3} != 5
  !error "number3 != 5"
!endif

!if ${number4} != 10
  !error "number4 != 10"
!endif

!if ${number5} != 1
  !error "number5 != 1"
!endif

; end math functions

# this should just give a warning, not an error
!include /NONFATAL file_that_doesnt_exist.nsh

# this should include this file just one time.
!include preprocessor.nsi

Section
Return
WriteUninstaller uninst.exe # avoid warning
SectionEnd

# test scopes

!macro TEST_SCOPE scope def should_exist

  !if ${should_exist} == y
    !ifndef ${def}
      !error "${def} not defined in ${scope} scope"
    !endif
  !else
    !ifdef ${def}
      !error "${def} defined in ${scope} scope"
    !endif
  !endif

!macroend

!macro TEST_SCOPES scope global section function pageex uninstall

  !insertmacro TEST_SCOPE "${scope}" __GLOBAL__    ${global}
  !insertmacro TEST_SCOPE "${scope}" __SECTION__   ${section}
  !insertmacro TEST_SCOPE "${scope}" __FUNCTION__  ${function}
  !insertmacro TEST_SCOPE "${scope}" __PAGEEX__    ${pageex}
  !insertmacro TEST_SCOPE "${scope}" __UNINSTALL__ ${uninstall}

!macroend

!insertmacro TEST_SCOPES "global" y n n n n

Section test
!insertmacro TEST_SCOPES "section" n y n n n
!if ${__SECTION__} != test
  !error "invalid __SECTION__ value"
!endif
SectionEnd

Section un.test
!insertmacro TEST_SCOPES "uninstall section" n y n n y
!if ${__SECTION__} != test
  !error "invalid __SECTION__ value"
!endif
SectionEnd

Function test
Call test # avoid warning
!insertmacro TEST_SCOPES "function" n n y n n
!if ${__FUNCTION__} != test
  !error "invalid __FUNCTION__ value"
!endif
FunctionEnd

Function un.test
Call un.test # avoid warning
!insertmacro TEST_SCOPES "uninstall function" n n y n y
!if ${__FUNCTION__} != test
  !error "invalid __FUNCTION__ value"
!endif
FunctionEnd

PageEx instfiles
!insertmacro TEST_SCOPES "pageex" n n n y n
!if ${__PAGEEX__} != instfiles
  !error "invalid __PAGEEX__ value"
!endif
PageExEnd

PageEx un.instfiles
!insertmacro TEST_SCOPES "uninstall pageex" n n n y y
!if ${__PAGEEX__} != instfiles
  !error "invalid __PAGEEX__ value"
!endif
PageExEnd

!insertmacro TEST_SCOPES "global" y n n n n

!else

# this should just give a warning, not an error
!include /NONFATAL another_file_that_doesnt_exist.nsh

!endif