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Support enum arguments for Java binding
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@cv3d
cv3d committed Sep 1, 2018
1 parent 4e6be21 commit 78835ad
Showing 1 changed file with 69 additions and 22 deletions.
91 changes: 69 additions & 22 deletions modules/java/generator/gen_java.py
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Original file line number Diff line number Diff line change
Expand Up @@ -140,17 +140,18 @@ def parseName(self, name, namespaces):

def fullName(self, isCPP=False):
result = ".".join([self.fullClass(), self.name])
return result if not isCPP else result.replace(".", "::")
return result if not isCPP else get_cname(result)

def fullClass(self, isCPP=False):
result = ".".join([f for f in [self.namespace] + self.classpath.split(".") if len(f)>0])
return result if not isCPP else result.replace(".", "::")
return result if not isCPP else get_cname(result)

class ConstInfo(GeneralInfo):
def __init__(self, decl, addedManually=False, namespaces=[]):
def __init__(self, decl, addedManually=False, namespaces=[], enumType=None):
GeneralInfo.__init__(self, "const", decl, namespaces)
self.cname = self.name.replace(".", "::")
self.cname = get_cname(self.name)
self.value = decl[1]
self.enumType = enumType
self.addedManually = addedManually
if self.namespace in namespaces_dict:
self.name = '%s_%s' % (namespaces_dict[self.namespace], self.name)
Expand All @@ -166,6 +167,25 @@ def isIgnored(self):
return True
return False

def normalize_field_name(name):
return name.replace(".","_").replace("[","").replace("]","").replace("_getNativeObjAddr()","_nativeObj")

def normalize_class_name(name):
return re.sub(r"^cv\.", "", name).replace(".", "_")

def get_cname(name):
return name.replace(".", "::")

def cast_from(t):
if t in type_dict and "cast_from" in type_dict[t]:
return type_dict[t]["cast_from"]
return t

def cast_to(t):
if t in type_dict and "cast_to" in type_dict[t]:
return type_dict[t]["cast_to"]
return t

class ClassPropInfo():
def __init__(self, decl): # [f_ctype, f_name, '', '/RW']
self.ctype = decl[0]
Expand All @@ -178,7 +198,7 @@ def __repr__(self):
class ClassInfo(GeneralInfo):
def __init__(self, decl, namespaces=[]): # [ 'class/struct cname', ': base', [modlist] ]
GeneralInfo.__init__(self, "class", decl, namespaces)
self.cname = self.name.replace(".", "::")
self.cname = get_cname(self.name)
self.methods = []
self.methods_suffixes = {}
self.consts = [] # using a list to save the occurrence order
Expand Down Expand Up @@ -303,7 +323,7 @@ def __repr__(self):
class FuncInfo(GeneralInfo):
def __init__(self, decl, namespaces=[]): # [ funcname, return_ctype, [modifiers], [args] ]
GeneralInfo.__init__(self, "func", decl, namespaces)
self.cname = decl[0].replace(".", "::")
self.cname = get_cname(decl[0])
self.jname = self.name
self.isconstructor = self.name == self.classname
if "[" in self.name:
Expand Down Expand Up @@ -341,7 +361,6 @@ def clear(self):
self.classes = { "Mat" : ClassInfo([ 'class Mat', '', [], [] ], self.namespaces) }
self.module = ""
self.Module = ""
self.enum_types = []
self.ported_func_list = []
self.skipped_func_list = []
self.def_args_hist = {} # { def_args_cnt : funcs_cnt }
Expand Down Expand Up @@ -404,8 +423,8 @@ def add_class(self, decl):
)
logging.info('ok: class %s, name: %s, base: %s', classinfo, name, classinfo.base)

def add_const(self, decl): # [ "const cname", val, [], [] ]
constinfo = ConstInfo(decl, namespaces=self.namespaces)
def add_const(self, decl, enumType=None): # [ "const cname", val, [], [] ]
constinfo = ConstInfo(decl, namespaces=self.namespaces, enumType=enumType)
if constinfo.isIgnored():
logging.info('ignored: %s', constinfo)
elif not self.isWrapped(constinfo.classname):
Expand All @@ -423,12 +442,16 @@ def add_const(self, decl): # [ "const cname", val, [], [] ]
logging.info('ok: %s', constinfo)

def add_enum(self, decl): # [ "enum cname", "", [], [] ]
enumname = decl[0].replace("enum ", "").strip()
self.enum_types.append(enumname)
enumType = decl[0].rsplit(" ", 1)[1]
if enumType.endswith("<unnamed>"):
enumType = None
else:
ctype = normalize_class_name(enumType)
type_dict[ctype] = { "cast_from" : "int", "cast_to" : get_cname(enumType), "j_type" : "int", "jn_type" : "int", "jni_type" : "jint", "suffix" : "I" }
const_decls = decl[3]

for decl in const_decls:
self.add_const(decl)
self.add_const(decl, enumType)

def add_func(self, decl):
fi = FuncInfo(decl, namespaces=self.namespaces)
Expand Down Expand Up @@ -530,7 +553,7 @@ def fullTypeName(self, t):
if self.isWrapped(t):
return self.getClass(t).fullName(isCPP=True)
else:
return t
return cast_from(t)

def gen_func(self, ci, fi, prop_name=''):
logging.info("%s", fi)
Expand Down Expand Up @@ -563,7 +586,7 @@ def gen_func(self, ci, fi, prop_name=''):
msg = "// Return type '%s' is not supported, skipping the function\n\n" % fi.ctype
self.skipped_func_list.append(c_decl + "\n" + msg)
j_code.write( " "*4 + msg )
logging.warning("SKIP:" + c_decl.strip() + "\t due to RET type" + fi.ctype)
logging.warning("SKIP:" + c_decl.strip() + "\t due to RET type " + fi.ctype)
return
for a in fi.args:
if a.ctype not in type_dict:
Expand All @@ -575,7 +598,7 @@ def gen_func(self, ci, fi, prop_name=''):
msg = "// Unknown type '%s' (%s), skipping the function\n\n" % (a.ctype, a.out or "I")
self.skipped_func_list.append(c_decl + "\n" + msg)
j_code.write( " "*4 + msg )
logging.warning("SKIP:" + c_decl.strip() + "\t due to ARG type" + a.ctype + "/" + (a.out or "I"))
logging.warning("SKIP:" + c_decl.strip() + "\t due to ARG type " + a.ctype + "/" + (a.out or "I"))
return

self.ported_func_list.append(c_decl)
Expand Down Expand Up @@ -654,7 +677,7 @@ def gen_func(self, ci, fi, prop_name=''):
if "I" in a.out or not a.out or self.isWrapped(a.ctype): # input arg, pass by primitive fields
for f in fields:
jn_args.append ( ArgInfo([ f[0], a.name + f[1], "", [], "" ]) )
jni_args.append( ArgInfo([ f[0], a.name + f[1].replace(".","_").replace("[","").replace("]","").replace("_getNativeObjAddr()","_nativeObj"), "", [], "" ]) )
jni_args.append( ArgInfo([ f[0], a.name + normalize_field_name(f[1]), "", [], "" ]) )
if "O" in a.out and not self.isWrapped(a.ctype): # out arg, pass as double[]
jn_args.append ( ArgInfo([ "double[]", "%s_out" % a.name, "", [], "" ]) )
jni_args.append ( ArgInfo([ "double[]", "%s_out" % a.name, "", [], "" ]) )
Expand Down Expand Up @@ -702,7 +725,7 @@ def gen_func(self, ci, fi, prop_name=''):
" private static native $type $name($args);\n").substitute(\
type = type_dict[fi.ctype].get("jn_type", "double[]"), \
name = fi.jname + '_' + str(suffix_counter), \
args = ", ".join(["%s %s" % (type_dict[a.ctype]["jn_type"], a.name.replace(".","_").replace("[","").replace("]","").replace("_getNativeObjAddr()","_nativeObj")) for a in jn_args])
args = ", ".join(["%s %s" % (type_dict[a.ctype]["jn_type"], normalize_field_name(a.name)) for a in jn_args])
) );

# java part:
Expand Down Expand Up @@ -860,7 +883,7 @@ def gen_func(self, ci, fi, prop_name=''):
if not a.out and not "jni_var" in type_dict[a.ctype]:
# explicit cast to C type to avoid ambiguous call error on platforms (mingw)
# where jni types are different from native types (e.g. jint is not the same as int)
jni_name = "(%s)%s" % (a.ctype, jni_name)
jni_name = "(%s)%s" % (cast_to(a.ctype), jni_name)
if not a.ctype: # hidden
jni_name = a.defval
cvargs.append( type_dict[a.ctype].get("jni_name", jni_name) % {"n" : a.name})
Expand Down Expand Up @@ -934,11 +957,35 @@ def gen_class(self, ci):
%s;\n\n""" % (",\n"+" "*12).join(["%s = %s" % (c.name, c.value) for c in ci.private_consts])
)
if ci.consts:
logging.info("%s", ci.consts)
ci.j_code.write("""
enumTypes = set(map(lambda c: c.enumType, ci.consts))
grouped_consts = {enumType: [c for c in ci.consts if c.enumType == enumType] for enumType in enumTypes}
for typeName, consts in grouped_consts.items():
logging.info("%s", consts)
if typeName:
typeName = typeName.rsplit(".", 1)[-1]
###################### Utilize Java enums ######################
# ci.j_code.write("""
# public enum {1} {{
# {0};
#
# private final int id;
# {1}(int id) {{ this.id = id; }}
# {1}({1} _this) {{ this.id = _this.id; }}
# public int getValue() {{ return id; }}
# }}\n\n""".format((",\n"+" "*8).join(["%s(%s)" % (c.name, c.value) for c in consts]), typeName)
# )
################################################################
ci.j_code.write("""
// C++: enum {1}
public static final int
%s;\n\n""" % (",\n"+" "*12).join(["%s = %s" % (c.name, c.value) for c in ci.consts])
)
{0};\n\n""".format((",\n"+" "*12).join(["%s = %s" % (c.name, c.value) for c in consts]), typeName)
)
else:
ci.j_code.write("""
// C++: enum <unnamed>
public static final int
{0};\n\n""".format((",\n"+" "*12).join(["%s = %s" % (c.name, c.value) for c in consts]))
)
# methods
for fi in ci.getAllMethods():
self.gen_func(ci, fi)
Expand Down

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