Add JSON parsing support to qmake.

Add qjson* implementation files from corelib/json
to the qmake build. Add a read-only compile mode,
enabled by defining QT_JSON_READONLY.

Add qmake built-in function parseJson(file, into)
which parses a json file into the given variable.

qmake uses a flat key -> value-list implementation
for storing variables, which means that some hackery
is need to represent arbitrarily nested JSON. Use a
special "_KEYS_" variable for arrays and objects:

Arrays:
["item1", "item2"]
$${array._KEYS_} -> 0 1 2
$${array.0} -> "item1"
$${array.1} -> "item2"

Objects:
{ "key1" : "value1", "key2" : "value2" }
$${object._KEYS_} -> key1 key2
$${object.key1} -> value1
$${object.key2} -> value2

Change-Id: I0aa2e4e4ae14fa25be8242bc16d3cffce32504d2
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 26 insertions, 1 deletions

diff --git a/qmake/Makefile.unix b/qmake/Makefile.unix
index a77b1b22dc..2f04a88a42 100644
--- a/qmake/Makefile.unix
+++ b/qmake/Makefile.unix
@@ -19,6 +19,7 @@ QOBJS=qtextcodec.o qutfcodec.o qstring.o qstringbuilder.o qtextstream.o qiodevic
       qabstractfileengine.o qtemporaryfile.o qmap.o qmetatype.o qsettings.o qsystemerror.o qlibraryinfo.o \
       qvariant.o qvsnprintf.o qlocale.o qlocale_tools.o qlinkedlist.o qnumeric.o \
       qcryptographichash.o qxmlstream.o qxmlutils.o qlogging.o \
+      qjson.o qjsondocument.o qjsonparser.o qjsonarray.o qjsonobject.o qjsonvalue.o \
       $(QTOBJS)
 
 
@@ -80,6 +81,12 @@ DEPEND_SRC = \
 	   $(SOURCE_PATH)/src/corelib/global/qlogging.cpp \
 	   $(SOURCE_PATH)/src/corelib/plugin/qsystemlibrary.cpp \
 	   $(SOURCE_PATH)/tools/shared/windows/registry.cpp \
+	   $(SOURCE_PATH)/src/corelib/json/qjson.cpp \
+	   $(SOURCE_PATH)/src/corelib/json/qjsondocument.cpp \
+	   $(SOURCE_PATH)/src/corelib/json/qjsonparser.cpp \
+	   $(SOURCE_PATH)/src/corelib/json/qjsonarray.cpp \
+	   $(SOURCE_PATH)/src/corelib/json/qjsonobject.cpp \
+	   $(SOURCE_PATH)/src/corelib/json/qjsonvalue.cpp \
 	   $(QTSRCS)
 
 CPPFLAGS = -g $(EXTRA_CPPFLAGS) \
@@ -93,7 +100,7 @@ CPPFLAGS = -g $(EXTRA_CPPFLAGS) \
 	   -DQT_BUILD_QMAKE -DQT_BOOTSTRAPPED -DPROEVALUATOR_FULL \
 	   -DQT_NO_TEXTCODEC -DQT_NO_UNICODETABLES -DQT_NO_COMPONENT -DQT_NO_COMPRESS \
 	   -DQT_NO_THREAD -DQT_NO_QOBJECT -DQT_NO_GEOM_VARIANT -DQT_NO_DATASTREAM \
-	   -DQT_CRYPTOGRAPHICHASH_ONLY_SHA1
+	   -DQT_CRYPTOGRAPHICHASH_ONLY_SHA1 -DQT_JSON_READONLY
 
 CXXFLAGS = $(EXTRA_CXXFLAGS) $(CPPFLAGS)
 
@@ -385,4 +392,22 @@ qsystemlibrary.o: $(SOURCE_PATH)/src/corelib/plugin/qsystemlibrary.cpp
 registry.o: $(SOURCE_PATH)/tools/shared/windows/registry.cpp
 	$(CXX) -c -o $@ $(CXXFLAGS) $(SOURCE_PATH)/tools/shared/windows/registry.cpp
 
+qjson.o: $(SOURCE_PATH)/src/corelib/json/qjson.cpp
+	$(CXX) -c -o $@ $(CXXFLAGS) $(SOURCE_PATH)/src/corelib/json/qjson.cpp
+
+qjsondocument.o: $(SOURCE_PATH)/src/corelib/json/qjsondocument.cpp
+	$(CXX) -c -o $@ $(CXXFLAGS) $(SOURCE_PATH)/src/corelib/json/qjsondocument.cpp
+
+qjsonparser.o: $(SOURCE_PATH)/src/corelib/json/qjsonparser.cpp
+	$(CXX) -c -o $@ $(CXXFLAGS) $(SOURCE_PATH)/src/corelib/json/qjsonparser.cpp
+
+qjsonarray.o: $(SOURCE_PATH)/src/corelib/json/qjsonarray.cpp
+	$(CXX) -c -o $@ $(CXXFLAGS) $(SOURCE_PATH)/src/corelib/json/qjsonarray.cpp
+
+qjsonobject.o: $(SOURCE_PATH)/src/corelib/json/qjsonobject.cpp
+	$(CXX) -c -o $@ $(CXXFLAGS) $(SOURCE_PATH)/src/corelib/json/qjsonobject.cpp
+
+qjsonvalue.o: $(SOURCE_PATH)/src/corelib/json/qjsonvalue.cpp
+	$(CXX) -c -o $@ $(CXXFLAGS) $(SOURCE_PATH)/src/corelib/json/qjsonvalue.cpp
+
 # DO NOT DELETE THIS LINE -- make depend depends on it