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zproject_java_lib.gsl
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zproject_java_lib.gsl
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# JNI common functions
#
# This is a code generator built using the iMatix GSL code generation
# language. See https://github.com/imatix/gsl for details.
#
# Copyright (c) the Contributors as noted in the AUTHORS file.
# This file is part of zproject.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
function resolve_container (container)
# Type of container shown to Java apps
my.container.jni_java_type = ""
# Type of container passed to native code
my.container.jni_jni_type = ""
# Mapping from Java to JNI type
my.container.jni_mapping = "$(my.container.name:camel)"
# Is the container a known class type?
my.container.jni_is_class = 0
# Is the container a self_p reference?
my.container.jni_self_p = 0
if my.container.type = "nothing"
my.container.jni_java_type = "void"
my.container.jni_jni_type = "void"
elsif my.container.type = "anything" \
| my.container.type = "sockish" \
| my.container.type = "size" \
| my.container.type = "time" \
| my.container.type = "msecs" \
| my.container.type = "file_size"
my.container.jni_java_type = "long"
my.container.jni_jni_type = "jlong"
elsif my.container.type = "boolean"
my.container.jni_java_type = "boolean"
my.container.jni_jni_type = "jboolean"
elsif my.container.type = "byte"
my.container.jni_java_type = "byte"
my.container.jni_jni_type = "jbyte"
elsif my.container.type = "char"
my.container.jni_java_type = "char"
my.container.jni_jni_type = "jchar"
elsif my.container.type = "integer"
my.container.jni_java_type = "int"
my.container.jni_jni_type = "jint"
elsif my.container.type = "number"
if my.container.size ?= "1"
my.container.jni_java_type = "byte"
my.container.jni_jni_type = "jbyte"
elsif my.container.size = 2
my.container.jni_java_type = "short"
my.container.jni_jni_type = "jshort"
elsif my.container.size = 4
my.container.jni_java_type = "int"
my.container.jni_jni_type = "jint"
elsif my.container.size = 8
my.container.jni_java_type = "long"
my.container.jni_jni_type = "jlong"
endif
elsif my.container.type = "real"
if my.container.size ?= "4"
my.container.jni_java_type = "float"
my.container.jni_jni_type = "jfloat"
elsif my.container.size ?= "8"
my.container.jni_java_type = "double"
my.container.jni_jni_type = "jdouble"
endif
elsif my.container.type = "buffer"
if my.container.by_reference
return 1 # Skip methods that do this
endif
my.container.jni_java_type = "byte []"
my.container.jni_jni_type = "jbyteArray"
elsif my.container.type = "string"
if my.container.by_reference
return 1 # Skip methods that do this
endif
my.container.jni_java_type = "String"
my.container.jni_jni_type = "jstring"
elsif my.container.type = "format"
my.container.jni_java_type = "String"
my.container.jni_jni_type = "jstring"
elsif count (project.class, class.c_name = my.container.type & !defined (class.api))
return 1 # Refers to class that has no API model
elsif my.container.name = "self_p"
my.container.jni_self_p = 1
elsif count (project.class, class.c_name = my.container.type) \
| count (project->dependencies.class, class.c_name = my.container.type)
my.container.jni_java_type = "$(my.container.type:pascal)"
my.container.jni_mapping = "$(my.container.name:camel).self"
my.container.jni_shim_type = "long"
my.container.jni_jni_type = "jlong"
my.container.jni_is_class = 1
elsif my.container.callback ?= 1
return 1 # Don't implement callbacks yet
elsif my.container.type = "va_list" \
| my.container.type = "FILE" \
| my.container.type = "zmq_pollitem" \
| my.container.type = "socket"
return 1
else
abort "Unhandled type '$(my.container.type:)' in $(class.c_name)"
endif
# By default, shim gets Java type
my.container.jni_shim_type ?= my.container.jni_java_type
return 0 # Seems to be OK
endfunction
function resolve_method (method)
my.method.okay = 1
if my.method.name = "clone" \
| my.method.name = "close" \
| my.method.name = "equals" \
| my.method.name = "finalize" \
| my.method.name = "getClass" \
| my.method.name = "hashCode" \
| my.method.name = "toString" \
| my.method.name = "notify" \
| my.method.name = "notifyAll" \
| my.method.name = "wait"
my.method.jni_name = "$(name:pascal)" # Leading capital letter
else
my.method.jni_name = "$(name:camel)"
endif
my.method.jni_method_signature = ""
if my.method.singleton = 1
my.method.jni_shim_signature_java = ""
my.method.jni_shim_signature_c = ""
my.method.jni_shim_invocation_java = ""
my.method.jni_native_invocation_c = ""
comma = ""
else
my.method.jni_shim_signature_java = "long self"
my.method.jni_shim_signature_c = "jlong self"
my.method.jni_shim_invocation_java = "self"
my.method.jni_native_invocation_c = "($(class.c_name)_t *) (intptr_t) self"
comma = ", "
endif
for my.method.argument
if resolve_container (argument) = 1
my.method.okay = 0
#echo "Skipping $(class.name).$(my.method.name) - can't deal with argument type $(argument.type)"
last
endif
if variadic = 1
if va_start <> "format"
jni_method_signature += " []"
jni_shim_invocation_java += " [0]"
endif
elsif jni_self_p = 1
jni_shim_signature_java += "$(comma)long self"
jni_shim_invocation_java += "$(comma)self"
jni_shim_signature_c += "$(comma)jlong self"
jni_native_invocation_c += "$(comma)($(argument.c_type)) &self"
my.method.return_self_p = 1
my.method->return.jni_shim_type = "long"
else
if jni_method_signature <> ""
jni_method_signature += ", "
endif
jni_method_signature += "$(argument.jni_java_type:) $(argument.name:camel)"
jni_shim_signature_java += "$(comma)$(argument.jni_shim_type:) $(argument.name:camel)"
jni_shim_signature_c += "$(comma)$(argument.jni_jni_type:) $(argument.c_name)"
jni_shim_invocation_java += "$(comma)$(argument.jni_mapping:)"
if type = "format"
jni_native_invocation_c += "$(comma)\"%s\", $(argument.c_name)_"
elsif type = "string" | type = "buffer"
jni_native_invocation_c += "$(comma)$(argument.c_name)_"
elsif by_reference = 1
jni_native_invocation_c += "$(comma)($(argument.c_type)) (intptr_t) &$(argument.c_name)"
elsif jni_is_class = 1 | type = "anything" | type = "sockish"
jni_native_invocation_c += "$(comma)($(argument.c_type)) (intptr_t) $(argument.c_name)"
else
jni_native_invocation_c += "$(comma)($(argument.c_type)) $(argument.c_name)"
endif
endif
comma = ", "
endfor
for my.method.return
if resolve_container (return)
my.method.okay = 0
#echo "Skipping $(class.name).$(my.method.name) - can't deal with return type $(return.type:)"
else
# returned buffers need a size attribute
if type = "buffer" & !defined (return.size)
my.method.okay = 0
#echo "Skipping $(class.name).$(my.method.name) - can't return unsized fresh buffer"
endif
endif
endfor
endfunction
function resolve_class (class)
if defined (my.class.api) & !my.class.private
my.class.okay = 1
for constructor
resolve_method (constructor)
if index () = 1 & constructor.okay = 0
my.class.okay = 0
endif
endfor
for destructor
resolve_method (destructor)
endfor
for method
resolve_method (method)
endfor
else
my.class.okay = 0
endif
endfunction