summaryrefslogtreecommitdiffstats
path: root/Modules/UseSWIG.cmake
blob: 5499f84f84be1dcfb62dae754b2bb12b2b0b11d9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
# - SWIG module for CMake
# Defines the following macros:
#   SWIG_ADD_MODULE(name language [ files ])
#     - Define swig module with given name and specified language
#   SWIG_LINK_LIBRARIES(name [ libraries ])
#     - Link libraries to swig module
# All other macros are for internal use only.
# To get the actual name of the swig module,
# use: ${SWIG_MODULE_name_REAL_NAME}.
# Set Source files properties such as CPLUSPLUS and SWIG_FLAGS to specify
# special behavior of SWIG. Also global CMAKE_SWIG_FLAGS can be used to add
# special flags to all swig calls.
# Another special variable is CMAKE_SWIG_OUTDIR, it allows one to specify 
# where to write all the swig generated module (swig -outdir option)
# The name-specific variable SWIG_MODULE_<name>_EXTRA_DEPS may be used
# to specify extra dependencies for the generated modules.

SET(SWIG_CXX_EXTENSION "cxx")
SET(SWIG_EXTRA_LIBRARIES "")

SET(SWIG_PYTHON_EXTRA_FILE_EXTENSION "py")

#
# For given swig module initialize variables associated with it
#
MACRO(SWIG_MODULE_INITIALIZE name language)
  STRING(TOUPPER "${language}" swig_uppercase_language)
  STRING(TOLOWER "${language}" swig_lowercase_language)
  SET(SWIG_MODULE_${name}_LANGUAGE "${swig_uppercase_language}")
  SET(SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG "${swig_lowercase_language}")

  IF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xUNKNOWNx$")
    MESSAGE(FATAL_ERROR "SWIG Error: Language \"${language}\" not found")
  ENDIF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xUNKNOWNx$")

  SET(SWIG_MODULE_${name}_REAL_NAME "${name}")
  IF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xPYTHONx$")
    SET(SWIG_MODULE_${name}_REAL_NAME "_${name}")
  ENDIF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xPYTHONx$")
  IF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xPERLx$")
    SET(SWIG_MODULE_${name}_EXTRA_FLAGS "-shadow")
  ENDIF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xPERLx$")
ENDMACRO(SWIG_MODULE_INITIALIZE)

#
# For a given language, input file, and output file, determine extra files that
# will be generated. This is internal swig macro.
#

MACRO(SWIG_GET_EXTRA_OUTPUT_FILES language outfiles generatedpath infile)
  GET_SOURCE_FILE_PROPERTY(SWIG_GET_EXTRA_OUTPUT_FILES_module_basename
    ${infile} SWIG_MODULE_NAME)
  IF(SWIG_GET_EXTRA_OUTPUT_FILES_module_basename STREQUAL "NOTFOUND")
    GET_FILENAME_COMPONENT(SWIG_GET_EXTRA_OUTPUT_FILES_module_basename "${infile}" NAME_WE)
  ENDIF(SWIG_GET_EXTRA_OUTPUT_FILES_module_basename STREQUAL "NOTFOUND")
  FOREACH(it ${SWIG_${language}_EXTRA_FILE_EXTENSION})
    SET(${outfiles} ${${outfiles}}
      "${generatedpath}/${SWIG_GET_EXTRA_OUTPUT_FILES_module_basename}.${it}")
  ENDFOREACH(it)
ENDMACRO(SWIG_GET_EXTRA_OUTPUT_FILES)

#
# Take swig (*.i) file and add proper custom commands for it
#
MACRO(SWIG_ADD_SOURCE_TO_MODULE name outfiles infile)
  SET(swig_full_infile ${infile})
  GET_FILENAME_COMPONENT(swig_source_file_path "${infile}" PATH)
  GET_FILENAME_COMPONENT(swig_source_file_name_we "${infile}" NAME_WE)
  GET_SOURCE_FILE_PROPERTY(swig_source_file_generated ${infile} GENERATED)
  GET_SOURCE_FILE_PROPERTY(swig_source_file_cplusplus ${infile} CPLUSPLUS)
  GET_SOURCE_FILE_PROPERTY(swig_source_file_flags ${infile} SWIG_FLAGS)
  IF("${swig_source_file_flags}" STREQUAL "NOTFOUND")
    SET(swig_source_file_flags "")
  ENDIF("${swig_source_file_flags}" STREQUAL "NOTFOUND")
  SET(swig_source_file_fullname "${infile}")
  IF(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_SOURCE_DIR}")
    STRING(REGEX REPLACE 
      "^${CMAKE_CURRENT_SOURCE_DIR}" ""
      swig_source_file_relative_path
      "${swig_source_file_path}")
  ELSE(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_SOURCE_DIR}")
    IF(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_BINARY_DIR}")
      STRING(REGEX REPLACE 
        "^${CMAKE_CURRENT_BINARY_DIR}" ""
        swig_source_file_relative_path
        "${swig_source_file_path}")
      SET(swig_source_file_generated 1)
    ELSE(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_BINARY_DIR}")
      SET(swig_source_file_relative_path "${swig_source_file_path}")
      IF(swig_source_file_generated)
        SET(swig_source_file_fullname "${CMAKE_CURRENT_BINARY_DIR}/${infile}")
      ELSE(swig_source_file_generated)
        SET(swig_source_file_fullname "${CMAKE_CURRENT_SOURCE_DIR}/${infile}")
      ENDIF(swig_source_file_generated)
    ENDIF(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_BINARY_DIR}")
  ENDIF(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_SOURCE_DIR}")

  SET(swig_generated_file_fullname
    "${CMAKE_CURRENT_BINARY_DIR}")
  IF(swig_source_file_relative_path)
    SET(swig_generated_file_fullname
      "${swig_generated_file_fullname}/${swig_source_file_relative_path}")
  ENDIF(swig_source_file_relative_path)
  # If CMAKE_SWIG_OUTDIR was specified then pass it to -outdir
  IF(CMAKE_SWIG_OUTDIR)
    SET(swig_outdir ${CMAKE_SWIG_OUTDIR})
  ELSE(CMAKE_SWIG_OUTDIR)
    SET(swig_outdir ${CMAKE_CURRENT_BINARY_DIR})
  ENDIF(CMAKE_SWIG_OUTDIR)
  SWIG_GET_EXTRA_OUTPUT_FILES(${SWIG_MODULE_${name}_LANGUAGE}
    swig_extra_generated_files
    "${swig_outdir}"
    "${infile}")
  SET(swig_generated_file_fullname
    "${swig_generated_file_fullname}/${swig_source_file_name_we}")
  # add the language into the name of the file (i.e. TCL_wrap)
  # this allows for the same .i file to be wrapped into different languages
  SET(swig_generated_file_fullname
    "${swig_generated_file_fullname}${SWIG_MODULE_${name}_LANGUAGE}_wrap")

  IF(swig_source_file_cplusplus)
    SET(swig_generated_file_fullname
      "${swig_generated_file_fullname}.${SWIG_CXX_EXTENSION}")
  ELSE(swig_source_file_cplusplus)
    SET(swig_generated_file_fullname
      "${swig_generated_file_fullname}.c")
  ENDIF(swig_source_file_cplusplus)

  #MESSAGE("Full path to source file: ${swig_source_file_fullname}")
  #MESSAGE("Full path to the output file: ${swig_generated_file_fullname}")
  GET_DIRECTORY_PROPERTY(cmake_include_directories INCLUDE_DIRECTORIES)
  SET(swig_include_dirs)
  FOREACH(it ${cmake_include_directories})
    SET(swig_include_dirs ${swig_include_dirs} "-I${it}")
  ENDFOREACH(it)

  SET(swig_special_flags)
  # default is c, so add c++ flag if it is c++
  IF(swig_source_file_cplusplus)
    SET(swig_special_flags ${swig_special_flags} "-c++")
  ENDIF(swig_source_file_cplusplus)
  SET(swig_extra_flags)
  IF(SWIG_MODULE_${name}_EXTRA_FLAGS)
    SET(swig_extra_flags ${swig_extra_flags} ${SWIG_MODULE_${name}_EXTRA_FLAGS})
  ENDIF(SWIG_MODULE_${name}_EXTRA_FLAGS)
  ADD_CUSTOM_COMMAND(
    OUTPUT "${swig_generated_file_fullname}" ${swig_extra_generated_files}
    COMMAND "${SWIG_EXECUTABLE}"
    ARGS "-${SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG}"
    ${swig_source_file_flags}
    ${CMAKE_SWIG_FLAGS}
    -outdir ${swig_outdir}
    ${swig_special_flags}
    ${swig_extra_flags}
    ${swig_include_dirs}
    -o "${swig_generated_file_fullname}"
    "${swig_source_file_fullname}"
    MAIN_DEPENDENCY "${swig_source_file_fullname}"
    DEPENDS ${SWIG_MODULE_${name}_EXTRA_DEPS}
    COMMENT "Swig source") 
  SET_SOURCE_FILES_PROPERTIES("${swig_generated_file_fullname}" ${swig_extra_generated_files}
    PROPERTIES GENERATED 1)
  SET(${outfiles} "${swig_generated_file_fullname}" ${swig_extra_generated_files})
ENDMACRO(SWIG_ADD_SOURCE_TO_MODULE)

#
# Create Swig module
#
MACRO(SWIG_ADD_MODULE name language)
  SWIG_MODULE_INITIALIZE(${name} ${language})
  SET(swig_dot_i_sources)
  SET(swig_other_sources)
  FOREACH(it ${ARGN})
    IF(${it} MATCHES ".*\\.i$")
      SET(swig_dot_i_sources ${swig_dot_i_sources} "${it}")
    ELSE(${it} MATCHES ".*\\.i$")
      SET(swig_other_sources ${swig_other_sources} "${it}")
    ENDIF(${it} MATCHES ".*\\.i$")
  ENDFOREACH(it)

  SET(swig_generated_sources)
  FOREACH(it ${swig_dot_i_sources})
    SWIG_ADD_SOURCE_TO_MODULE(${name} swig_generated_source ${it})
    SET(swig_generated_sources ${swig_generated_sources} "${swig_generated_source}")
  ENDFOREACH(it)
  GET_DIRECTORY_PROPERTY(swig_extra_clean_files ADDITIONAL_MAKE_CLEAN_FILES)
  SET_DIRECTORY_PROPERTIES(PROPERTIES
    ADDITIONAL_MAKE_CLEAN_FILES "${swig_extra_clean_files};${swig_generated_sources}")
  ADD_LIBRARY(${SWIG_MODULE_${name}_REAL_NAME}
    MODULE
    ${swig_generated_sources}
    ${swig_other_sources})
  SET_TARGET_PROPERTIES(${SWIG_MODULE_${name}_REAL_NAME}
    PROPERTIES PREFIX "")
ENDMACRO(SWIG_ADD_MODULE)

#
# Like TARGET_LINK_LIBRARIES but for swig modules
#
MACRO(SWIG_LINK_LIBRARIES name)
  IF(SWIG_MODULE_${name}_REAL_NAME)
    TARGET_LINK_LIBRARIES(${SWIG_MODULE_${name}_REAL_NAME} ${ARGN})
  ELSE(SWIG_MODULE_${name}_REAL_NAME)
    MESSAGE(SEND_ERROR "Cannot find Swig library \"${name}\".")
  ENDIF(SWIG_MODULE_${name}_REAL_NAME)
ENDMACRO(SWIG_LINK_LIBRARIES name)