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swig/Source/Modules1.1/java.cxx
Dave Beazley 67940725e8 Renaming 
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@103 626c5289-ae23-0410-ae9c-e8d60b6d4f22
2000-01-18 21:54:05 +00:00

1304 lines
41 KiB
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/*******************************************************************************
* SWIG Java module
* Author: Harco de Hilster
* AT Consultancy
* Toernooiveld 104
* P.O. Box 1428
* 6501 BK Nijmegen
* +31 24 3527282
* harcoh@ATConsultancy.nl
*
* thanks to the following persons for submitting bug-reports:
*
* James Hicks <jamey@crl.dec.com>
* Lars Schmidt-Thieme <lschmidt@ix.urz.uni-heidelberg.de>
* Per OEyvind Hvidsten Per-Oyvind.Hvidsten@ffi.no
* Geoff Dillon <gdillon@pervasive.com>
* Michael Haller <haller@lionbio.co.uk>
* "Simon J. Julier" <sjulier@erols.com>
* "Pritam Kamat" <pritam@alier.com>
* Marc Hadley <marc_hadley@chrystal.co.uk>
*******************************************************************************
*/
#include <ctype.h>
#include "swig11.h"
#include "java.h"
char bigbuf[1024];
static char *usage = "\
Java Options\n\
-jnic - use c syntax for jni calls\n\
-jnicpp - use c++ syntax for jni calls\n\
-module name - set name of module\n\
-package name - set name of package\n\
-shadow - enable shadow classes\n\
-finalize - generate finalize methods\n\
-rn - generate register natives code\n\n";
char *JAVA::SwigTcToJniType(DataType *t, int ret) {
if(t->is_pointer == 1) {
switch(t->type) {
case T_INT: return "jintArray";
case T_SHORT: return "jshortArray";
case T_LONG: return "jlongArray";
case T_CHAR: return "jstring";
case T_FLOAT: return "jfloatArray";
case T_DOUBLE: return "jdoubleArray";
case T_UINT: return "jintArray";
case T_USHORT: return "jshortArray";
case T_ULONG: return "jlongArray";
case T_UCHAR: return "jbyteArray";
case T_SCHAR: return "jbyteArray";
case T_BOOL: return "jbooleanArray";
case T_VOID:
case T_USER: return "jlong";
}
} else if(t->is_pointer > 1) {
if(ret)
return "jlong";
else return "jlongArray";
} else {
switch(t->type) {
case T_INT: return "jint";
case T_SHORT: return "jshort";
case T_LONG: return "jlong";
case T_CHAR: return "jbyte";
case T_FLOAT: return "jfloat";
case T_DOUBLE: return "jdouble";
case T_UINT: return "jint";
case T_USHORT: return "jshort";
case T_ULONG: return "jlong";
case T_UCHAR: return "jbyte";
case T_SCHAR: return "jbyte";
case T_BOOL: return "jboolean";
case T_VOID: return "void";
case T_USER: return "jlong";
}
}
fprintf(stderr, "SwigTcToJniType: unhandled SWIG type %d, %s\n", t->type, (char *) t->name);
return NULL;
}
char *JAVA::SwigTcToJavaType(DataType *t, int ret, int inShadow) {
if(t->is_pointer == 1) {
switch(t->type) {
case T_INT: return "int []";
case T_SHORT: return "short []";
case T_LONG: return "long []";
case T_CHAR: return "String";
case T_FLOAT: return "float []";
case T_DOUBLE: return "double []";
case T_UINT: return "int []";
case T_USHORT: return "short []";
case T_ULONG: return "long []";
case T_UCHAR: return "byte []";
case T_SCHAR: return "byte []";
case T_BOOL: return "boolean []";
case T_VOID:
case T_USER: if(inShadow && shadow_classes.lookup(t->name))
return (char *)shadow_classes.lookup(t->name);
else return "long";
}
} else if(t->is_pointer > 1) {
if(ret)
return "long";
else return "long []";
} else {
switch(t->type) {
case T_INT: return "int";
case T_SHORT: return "short";
case T_LONG: return "long";
case T_CHAR: return "byte";
case T_FLOAT: return "float";
case T_DOUBLE: return "double";
case T_UINT: return "int";
case T_USHORT: return "short";
case T_ULONG: return "long";
case T_UCHAR: return "byte";
case T_SCHAR: return "byte";
case T_BOOL: return "boolean";
case T_VOID: return "void";
case T_USER: return "long";
}
}
fprintf(stderr, "SwigTcToJavaType: unhandled SWIG type %d, %s\n", t->type, (char *) t->name);
return NULL;
}
char *JAVA::SwigTcToJniScalarType(DataType *t) {
if(t->is_pointer == 1) {
switch(t->type) {
case T_INT: return "Int";
case T_SHORT: return "Short";
case T_LONG: return "Long";
case T_CHAR: return "Byte";
case T_FLOAT: return "Float";
case T_DOUBLE: return "Double";
case T_UINT: return "Int";
case T_USHORT: return "Short";
case T_ULONG: return "Long";
case T_UCHAR: return "Byte";
case T_SCHAR: return "Byte";
case T_BOOL: return "Boolean";
case T_VOID:
case T_USER: return "Long";
}
} else {
return "Long";
}
fprintf(stderr, "SwigTcToJniScalarType: unhandled SWIG type %d, %s\n", t->type, (char *) t->name);
return NULL;
}
char *JAVA::JavaMethodSignature(DataType *t, int ret, int inShadow) {
if(t->is_pointer == 1) {
switch(t->type) {
case T_INT: return "[I";
case T_SHORT: return "[S";
case T_LONG: return "[J";
case T_CHAR: return "Ljava/lang/String;";
case T_FLOAT: return "[F";
case T_DOUBLE: return "[D";
case T_UINT: return "[I";
case T_USHORT: return "[S";
case T_ULONG: return "[J";
case T_UCHAR: return "[B";
case T_SCHAR: return "[B";
case T_BOOL: return "[Z";
case T_VOID:
case T_USER: if(inShadow && shadow_classes.lookup(t->name))
return (char *)shadow_classes.lookup(t->name);
else return "J";
}
} else if(t->is_pointer > 1) {
if(ret) return "J";
else return "[J";
} else {
switch(t->type) {
case T_INT: return "I";
case T_SHORT: return "S";
case T_LONG: return "J";
case T_CHAR: return "B";
case T_FLOAT: return "F";
case T_DOUBLE: return "D";
case T_UINT: return "I";
case T_USHORT: return "S";
case T_ULONG: return "J";
case T_UCHAR: return "B";
case T_SCHAR: return "B";
case T_BOOL: return "Z";
case T_VOID: return "V";
case T_USER: return "J";
}
}
fprintf(stderr, "JavaMethodSignature: unhandled SWIG type %d, %s\n", t->type, (char *) t->name);
return NULL;
}
char *JAVA::JavaTypeFromTypemap(char *op, char *lang, DataType *t, char *pname) {
char *tm;
char *c = bigbuf;
if(!(tm = typemap_lookup(op, lang, t, pname, "", ""))) return NULL;
while(*tm && (isspace(*tm) || *tm == '{')) tm++;
while(*tm && *tm != '}') *c++ = *tm++;
*c='\0';
return strdup(bigbuf);
}
char *JAVA::makeValidJniName(char *name) {
char *c = name;
char *b = bigbuf;
while(*c) {
*b++ = *c;
if(*c == '_') *b++ = '1';
c++;
}
*b = '\0';
return strdup(bigbuf);
}
// !! this approach fails for functions without arguments
char *JAVA::JNICALL(String& func) {
if(jnic)
sprintf(bigbuf, "(*jenv)->%s(jenv, ", (char *) func);
else
sprintf(bigbuf, "jenv->%s(", (char *) func);
return strdup(bigbuf);
}
// !! this approach fails for functions without arguments
char *JAVA::JNICALL(char *func) {
if(jnic)
sprintf(bigbuf, "(*jenv)->%s(jenv, ", func);
else
sprintf(bigbuf, "jenv->%s(", func);
return strdup(bigbuf);
}
void JAVA::writeRegisterNatives()
{
if(strlen(registerNativesList.get()) == 0)
return;
fprintf(f_wrappers,"\n");
fprintf(f_wrappers,"JNINativeMethod nativeMethods[] = {\n");
fprintf(f_wrappers, registerNativesList.get());
fprintf(f_wrappers, "};\n");
fprintf(f_wrappers,"\nint numberOfNativeMethods=sizeof(nativeMethods)/sizeof(JNINativeMethod);\n\n");
// The registerNatives function
String registerFunction;
registerFunction << "jint registerNatives(JNIEnv *jenv) {" << endl
<< tab4 << "jclass nativeClass = " << JNICALL("FindClass")
<< "\"" << jni_pkgstr << module << "\");" <<endl;
registerFunction << tab4 << "if (nativeClass == 0)" << endl << tab8 << "return -1;" << endl;
registerFunction << tab4 << "return " << JNICALL("RegisterNatives") << "nativeClass, nativeMethods, " << "numberOfNativeMethods);" << endl;
registerFunction << "}" << endl << endl;
// The unregisterNatives function
registerFunction << "jint unregisterNatives(JNIEnv *jenv) {" << endl
<< tab4 << "jclass nativeClass = " << JNICALL("FindClass")
<< "\"" << jni_pkgstr << module << "\");" <<endl;
registerFunction << tab4 << "if (nativeClass == 0)" << endl << tab8 << "return -1;" << endl;
registerFunction << tab4 << "// Sun documentation suggests that this method should not be invoked in "
<< "\"normal native code\"." << endl;
registerFunction << tab4 << "// return " << JNICALL("UnregisterNatives") << "nativeClass);" << endl;
registerFunction << tab4 << "return 0;" << endl;
registerFunction << "}" << endl;
// Now write the C function
fprintf(f_wrappers,registerFunction.get());
}
// ---------------------------------------------------------------------
// JAVA::parse_args(int argc, char *argv[])
//
// Parse my command line options and initialize by variables.
// ---------------------------------------------------------------------
void JAVA::parse_args(int argc, char *argv[]) {
// file::set_library(java_path);
sprintf(LibDir,"%s", "java");
// Look for certain command line options
for (int i = 1; i < argc; i++) {
if (argv[i]) {
if (strcmp(argv[i],"-module") == 0) {
if (argv[i+1]) {
set_module(argv[i+1],0);
Swig_mark_arg(i);
Swig_mark_arg(i+1);
i++;
} else {
Swig_arg_error();
}
} else if (strcmp(argv[i],"-package") == 0) {
if (argv[i+1]) {
package = new char[strlen(argv[i+1])+1];
strcpy(package, argv[i+1]);
Swig_mark_arg(i);
Swig_mark_arg(i+1);
i++;
} else {
Swig_arg_error();
}
} else if (strcmp(argv[i],"-shadow") == 0) {
Swig_mark_arg(i);
shadow = 1;
} else if (strcmp(argv[i],"-jnic") == 0) {
Swig_mark_arg(i);
jnic = 1;
} else if (strcmp(argv[i],"-finalize") == 0) {
Swig_mark_arg(i);
finalize = 1;
} else if (strcmp(argv[i],"-rn") == 0) {
Swig_mark_arg(i);
useRegisterNatives = 1;
} else if (strcmp(argv[i],"-jnicpp") == 0) {
Swig_mark_arg(i);
jnic = 0;
} else if (strcmp(argv[i],"-help") == 0) {
fprintf(stderr,"%s\n", usage);
}
}
}
if(jnic == -1) {
if(CPlusPlus)
jnic = 0;
else jnic = 1;
}
// Add a symbol to the parser for conditional compilation
// cpp::define("SWIGJAVA");
Preprocessor_define((void *) "SWIGJAVA 1",0);
// Add typemap definitions
typemap_lang = "java";
}
// ---------------------------------------------------------------------
// void JAVA::parse()
//
// Start parsing an interface file for JAVA.
// ---------------------------------------------------------------------
void JAVA::parse() {
fprintf(stderr,"Generating wrappers for Java\n");
headers(); // Emit header files and other supporting code
/*
// Tell the parser to first include a typemap definition file
if (include_file("typemaps.i") == -1) {
fprintf(stderr,"Unable to find typemaps.i!\n");
SWIG_exit(1);
}
*/
yyparse(); // Run the SWIG parser
}
// ---------------------------------------------------------------------
// JAVA::set_module(char *mod_name,char **mod_list)
//
// Sets the module name. Does nothing if it's already set (so it can
// be overriddent as a command line option).
//
// mod_list is a NULL-terminated list of additional modules. This
// is really only useful when building static executables.
//----------------------------------------------------------------------
void JAVA::set_module(char *mod_name, char **mod_list) {
if (module) return;
module = new char[strlen(mod_name)+1];
strcpy(module,mod_name);
}
// ---------------------------------------------------------------------
// JAVA::headers(void)
//
// Generate the appropriate header files for JAVA interface.
// ----------------------------------------------------------------------
void JAVA::headers(void)
{
emit_banner(f_header); // Print the SWIG banner message
fprintf(f_header,"/* Implementation : Java */\n\n");
// Include header file code fragment into the output
// if (file::include("java.swg",f_header) == -1) {
if (insert_file("java.swg",f_header) == -1) {
fprintf(stderr,"Fatal Error. Unable to locate 'java.swg'.\n");
SWIG_exit(1);
}
}
// --------------------------------------------------------------------
// JAVA::initialize(void)
//
// Produces an initialization function. Assumes that the init function
// name has already been specified.
// ---------------------------------------------------------------------
void JAVA::initialize()
{
if (!module) {
fprintf(stderr,"SWIG : *** Error. No module name specified.\n");
SWIG_exit(1);
}
if(package) {
String s = package;
s.replace(".", "_");
s << "_";
c_pkgstr = copy_string(s.get());
String s2 = package;
s2.replace(".", "/");
s2 << "/";
jni_pkgstr = copy_string(s2.get());
} else {
package = c_pkgstr = jni_pkgstr = "";
}
sprintf(bigbuf, "Java_%s%s", c_pkgstr, module);
c_pkgstr = copy_string(bigbuf);
sprintf(bigbuf, "%s_%%f", c_pkgstr);
name_register("wrapper", copy_string(bigbuf));
name_register("set", "set_%v");
name_register("get", "get_%v");
name_register("member", "%c_%f");
// Generate the java class
sprintf(bigbuf, "%s.java", module);
if((f_java = fopen(bigbuf, "w")) == 0) {
fprintf(stderr,"Unable to open %s\n", bigbuf);
SWIG_exit(1);
}
fprintf(f_header, "#define J_CLASSNAME %s\n", module);
if(package && *package) {
fprintf(f_java, "package %s;\n\n", package);
fprintf(f_header, "#define J_PACKAGE %s\n", package);
} else {
fprintf(f_header, "#define J_PACKAGE\n");
}
}
void JAVA::emit_classdef() {
if(!classdef_emitted)
fprintf(f_java, "public class %s {\n", module);
classdef_emitted = 1;
}
// ---------------------------------------------------------------------
// JAVA::close(void)
//
// Wrap things up. Close initialization function.
// ---------------------------------------------------------------------
void JAVA::close(void)
{
if(!classdef_emitted) emit_classdef();
// Finish off the java class
fprintf(f_java, "}\n");
fclose(f_java);
if(useRegisterNatives)
writeRegisterNatives();
}
// ----------------------------------------------------------------------
// JAVA::create_command(char *cname, char *iname)
//
// Creates a JAVA command from a C function.
// ----------------------------------------------------------------------
void JAVA::create_command(char *cname, char *iname) {
}
void JAVA::add_native(char *name, char *iname, DataType *t, ParmList *l) {
native_func = 1;
create_function(name, iname, t, l);
native_func = 0;
}
// ----------------------------------------------------------------------
// JAVA::create_function(char *name, char *iname, DataType *d, ParmList *l)
//
// Create a function declaration and register it with the interpreter.
// ----------------------------------------------------------------------
void JAVA::create_function(char *name, char *iname, DataType *t, ParmList *l)
{
String source, target;
char *tm;
String cleanup, outarg;
String body;
char *javaReturnSignature;
String javaParameterSignature;
// A new wrapper function object
WrapperFunction f;
if(!classdef_emitted) emit_classdef();
// Make a wrapper name for this function
char *jniname = makeValidJniName(iname);
char *wname = name_wrapper(jniname,package);
free(jniname);
char *jnirettype = JavaTypeFromTypemap("jni", typemap_lang, t, iname);
if(!jnirettype) jnirettype = SwigTcToJniType(t, 1);
char *javarettype = JavaTypeFromTypemap("jtype", typemap_lang, t, iname);
if(!javarettype) javarettype = SwigTcToJavaType(t, 1, 0);
// If dumping the registerNative outputs, store the method return type
// signature
if (useRegisterNatives) {
javaReturnSignature = JavaMethodSignature(t, 1, 0);
}
if(t->type != T_VOID || t->is_pointer) {
f.add_local(jnirettype, "_jresult", "0");
}
fprintf(f_java, " %s ", method_modifiers);
fprintf(f_java, "native %s %s(", javarettype, iname);
if(shadow && member_func) {
String member_name = "";
if(strcmp(iname, name_set(name_member(shadow_name, shadow_classname))) == 0)
member_name << "set";
else member_name << "get";
member_name << (char) toupper((int) *shadow_name);
member_name << shadow_name + 1;
fprintf(f_shadow, " public %s %s(", javarettype, (char *) member_name);
body << tab4 << "return " << module << "." << iname << "(_self";
}
if(!jnic) f.def << "extern \"C\"\n";
f.def << "JNIEXPORT " << jnirettype << " JNICALL " << wname << "(JNIEnv *jenv, jclass jcls";
// Emit all of the local variables for holding arguments.
int pcount = emit_args(t,l,f);
int gencomma = 0;
// Now walk the function parameter list and generate code to get arguments
for (int i = 0; i < pcount ; i++) {
Parm *p = l->get(i); // Get the ith argument
char *target_copy = NULL;
char *target_length = NULL;
char *local_i = NULL;
source = "";
target = "";
// Produce string representation of source and target arguments
source << "jarg" << i;
target << "_arg" << i;
char *jnitype = JavaTypeFromTypemap("jni", typemap_lang, p->t, p->name);
if(!jnitype) jnitype = SwigTcToJniType(p->t, 0);
char *jtype = JavaTypeFromTypemap("jtype", typemap_lang, p->t, p->name);
if(!jtype) jtype = SwigTcToJavaType(p->t, 0, 0);
if (useRegisterNatives) {
javaParameterSignature << JavaMethodSignature(p->t, 0, 0);
}
if(p->ignore) continue;
// Add to java function header
if(shadow && member_func) {
if(i > 0) {
if(i>1) fprintf(f_shadow, ", ");
fprintf(f_shadow, "%s %s", jtype, (char *) source);
body << ", " << source;
}
}
if(gencomma) fprintf(f_java, ", ");
fprintf(f_java, "%s %s", jtype, (char *) source);
gencomma = 1;
// Add to Jni function header
f.def << ", " << jnitype << " " << source;
// Get typemap for this argument
tm = typemap_lookup("in",typemap_lang,p->t,p->name,source,target,&f);
if (tm) {
f.code << tm << "\n";
f.code.replace("$arg",source); // Perform a variable replacement
} else {
if(!p->t->is_pointer)
f.code << tab4 << target << " = " << p->t->print_cast() << source << ";\n";
else if((p->t->type == T_VOID && p->t->is_pointer == 1) ||
(p->t->type == T_USER && p->t->is_pointer == 1)) {
p->t->is_pointer++;
f.code << tab4 << target << " = *" << p->t->print_cast() << "&" << source << ";\n";
p->t->is_pointer--;
} else {
if(p->t->type == T_CHAR && p->t->is_pointer == 1) {
f.code << tab4 << (char *) target << " = (" << source << ") ? (char *)" << JNICALL("GetStringUTFChars") << source << ", 0) : NULL;\n";
} else {
char *scalarType = SwigTcToJniScalarType(p->t);
char *cptrtype = p->t->print_type();
p->t->is_pointer--;
const char *basic_jnitype = (p->t->is_pointer > 0) ? "jlong" : SwigTcToJniType(p->t, 0);
char *ctype = p->t->print_type();
if(scalarType == NULL || basic_jnitype == NULL) {
fprintf(stderr, "\'%s\' does not have a in/jni typemap, and is not a basic type.\n", ctype);
SWIG_exit(1);
};
p->t->is_pointer++;
String basic_jniptrtype = basic_jnitype;
basic_jniptrtype << "*";
String source_length = JNICALL("GetArrayLength");
source_length << source << ")";
target_copy = copy_string(f.new_local((char *) basic_jniptrtype, target, NULL));
target_length = copy_string(f.new_local("jsize", target, source_length));
if(local_i == NULL) local_i = copy_string(f.new_local("int", "i", NULL));
String scalarFunc = "Get";
scalarFunc << scalarType << "ArrayElements";
f.code << tab4 << target_copy << " = " << JNICALL(scalarFunc) << source << ", 0);\n";
f.code << tab4 << target << " = " << p->t->print_cast() << " malloc(" << target_length << " * sizeof(" << ctype << "));\n";
f.code << tab4 << "for(i=0; i<" << target_length << "; i++)\n";
// if(p->t->is_pointer && ((p->t->type == T_VOID) || (p->t->type == T_USER))) {
if(p->t->is_pointer > 1) {
f.code << tab8 << target << "[i] = *" << p->t->print_cast() << "&" << target_copy << "[i];\n";
} else {
p->t->is_pointer--;
f.code << tab8 << target << "[i] = " << p->t->print_cast() << target_copy << "[i];\n";
p->t->is_pointer++;
}
}
}
}
// Check to see if there was any sort of a constaint typemap
if ((tm = typemap_lookup("check",typemap_lang,p->t,p->name,source,target))) {
// Yep. Use it instead of the default
f.code << tm << "\n";
f.code.replace("$arg",source);
}
// Check if there was any cleanup code (save it for later)
if ((tm = typemap_lookup("freearg",typemap_lang,p->t,p->name,source,target))) {
// Yep. Use it instead of the default
cleanup << tm << "\n";
cleanup.replace("$arg",source);
}
if ((tm = typemap_lookup("argout",typemap_lang,p->t,p->name,source,target))) {
// Yep. Use it instead of the default
outarg << tm << "\n";
outarg.replace("$arg",source);
} else {
// if(p->t->is_pointer && p->t->type != T_USER && p->t->type != T_VOID) {
if(p->t->is_pointer) {
if(p->t->type == T_CHAR && p->t->is_pointer == 1) {
outarg << tab4 << "if(" << target <<") " << JNICALL("ReleaseStringUTFChars") << source << ", " << target << ");\n";
} else if((p->t->type == T_VOID && p->t->is_pointer == 1) ||
(p->t->type == T_USER && p->t->is_pointer == 1)) {
// nothing to do
} else {
char *scalarType = SwigTcToJniScalarType(p->t);
char *cptrtype = p->t->print_type();
p->t->is_pointer--;
const char *basic_jnitype = (p->t->is_pointer > 0) ? "jlong" : SwigTcToJniType(p->t, 0);
char *ctype = p->t->print_type();
if(scalarType == NULL || basic_jnitype == NULL) {
fprintf(stderr, "\'%s\' does not have a argout/jni typemap, and is not a basic type.\n", ctype);
SWIG_exit(1);
};
p->t->is_pointer++;
outarg << tab4 << "for(i=0; i<" << target_length << "; i++)\n";
if(p->t->is_pointer > 1) {
outarg << tab8 << "*" << p->t->print_cast() << "&" << target_copy << "[i] = " << target << "[i];\n";
} else {
outarg << tab8 << target_copy << "[i] = (" << basic_jnitype << ") " << target << "[i];\n";
}
String scalarFunc = "Release";
scalarFunc << scalarType << "ArrayElements";
outarg << tab4 << JNICALL(scalarFunc) << source << ", " << target_copy << ", 0);\n";
outarg << tab4 << "free(" << target << ");\n";
free(target_copy);
free(target_length);
free(local_i);
}
}
}
}
fprintf(f_java, ");\n");
if(shadow && member_func) {
fprintf(f_shadow, ") {\n");
body << ")";
fprintf(f_shadow, "%s;\n }\n\n", (char *) body);
}
f.def << ") {";
// Now write code to make the function call
if(!native_func)
emit_func_call(name,t,l,f);
// Return value if necessary
if((t->type != T_VOID || t->is_pointer) && !native_func) {
if ((tm = typemap_lookup("out",typemap_lang,t,iname,"_result","_jresult"))) {
f.code << tm << "\n";
} else {
if(t->is_pointer == 0 && t->type == T_USER) { /* return by value */
t->is_pointer=2;
f.code << tab4 << "*" << t->print_cast() << "&_jresult = _result;\n";
t->is_pointer=0;
} else if(t->is_pointer == 0 && t->type != T_USER) {
f.code << tab4 << "_jresult = (" << jnirettype << ") _result;\n";
} else if((t->type == T_VOID && t->is_pointer == 1) ||
(t->type == T_USER && t->is_pointer == 1)) {
t->is_pointer++;
f.code << tab4 << "*" << t->print_cast() << "&_jresult = _result;\n";
t->is_pointer--;
} else {
if(t->type == T_CHAR && t->is_pointer == 1) {
f.code << tab4 << "if(_result != NULL)\n";
f.code << tab8 << "_jresult = (jstring)" << JNICALL("NewStringUTF") << "_result);\n";
} else {
fprintf(stderr,"%s : Line %d. Warning: no return typemap for datatype %s\n", input_file,line_number,t->print_type());
t->is_pointer++;
f.code << tab4 << "*" << t->print_cast() << "&_jresult = _result;\n";
t->is_pointer--;
}
}
}
}
// Dump argument output code;
f.code << outarg;
// Dump the argument cleanup code
f.code << cleanup;
// Look for any remaining cleanup
if (NewObject) {
if ((tm = typemap_lookup("newfree",typemap_lang,t,iname,"_result",""))) {
f.code << tm << "\n";
}
}
if((t->type != T_VOID || t->is_pointer) && !native_func) {
if ((tm = typemap_lookup("ret",typemap_lang,t,iname,"_result","_jresult", NULL))) {
f.code << tm << "\n";
}
}
// Wrap things up (in a manner of speaking)
if(t->type != T_VOID || t->is_pointer)
f.code << tab4 << "return _jresult;\n";
f.code << "}\n";
// Substitute the cleanup code (some exception handlers like to have this)
f.code.replace("$cleanup",cleanup);
// Emit the function
if(!native_func)
f.print(f_wrappers);
// If registerNatives is active, store the table entry for this method
if (useRegisterNatives) {
String methodEntry;
methodEntry << "\"" << name << "\", \"(" << javaParameterSignature << ")" << javaReturnSignature << "\", " << wname;
registerNativesList << tab4 << "{" << methodEntry << "}," << "\n";
}
// If there's a documentation entry, produce a usage string
if (doc_entry) {
static DocEntry *last_doc_entry = 0;
// Use usage as description
doc_entry->usage << iname;
// Set the cinfo field to specific a return type
if (last_doc_entry != doc_entry) {
doc_entry->cinfo << "returns " << t->print_type();
last_doc_entry = doc_entry;
}
}
}
// -----------------------------------------------------------------------
// JAVA::link_variable(char *name, char *iname, DataType *t)
//
// Create a JAVA link to a C variable.
// -----------------------------------------------------------------------
void JAVA::link_variable(char *name, char *iname, DataType *t)
{
emit_set_get(name,iname, t);
}
// -----------------------------------------------------------------------
// JAVA::declare_const(char *name, char *iname, DataType *type, char *value)
// ------------------------------------------------------------------------
void JAVA::declare_const(char *name, char *iname, DataType *type, char *value) {
char *tm;
FILE *jfile;
char *jname;
if(!classdef_emitted) emit_classdef();
if(shadow && member_func) {
jfile = f_shadow;
jname = shadow_name;
} else {
jfile = f_java;
jname = name;
}
if ((tm = typemap_lookup("const",typemap_lang,type,name,name,iname))) {
String str = tm;
str.replace("$value",value);
fprintf(jfile," %s\n\n", (char *) str);
} else {
if((type->is_pointer == 0)) {
char *jtype = typemap_lookup("jtype", typemap_lang, type, name, name, iname);
if(!jtype) jtype = SwigTcToJavaType(type, 0, 0);
if(strcmp(jname, value) == 0 || strstr(value,"::") != NULL) {
fprintf(stderr, "ignoring enum constant: %s\n", jname);
} else
fprintf(jfile, " public final static %s %s = %s;\n\n", jtype, jname, value);
} else {
if(type->type == T_CHAR && type->is_pointer == 1) {
fprintf(jfile, " public final static String %s = \"%s\";\n\n", jname, value);
} else {
emit_set_get(name,iname, type);
}
}
}
}
void emit_shadow_banner(FILE *f) {
fprintf(f, "/*\n");
fprintf(f, " *\n");
fprintf(f, " * This file was automatically generated by :\n");
fprintf(f, " * Simplified Wrapper and Interface Generator (SWIG)\n");
fprintf(f, " * Version 1.1 (Final)\n");
fprintf(f, " *\n");
fprintf(f, " * Portions Copyright (c) 1995-1997\n");
fprintf(f, " * The University of Utah and The Regents of the University of California.\n");
fprintf(f, " * Permission is granted to distribute this file in any manner provided\n");
fprintf(f, " * this notice remains intact.\n");
fprintf(f, " *\n");
fprintf(f, " * Portions Copyright (c) 1997-1999\n");
fprintf(f, " * Harco de Hilster, Harco.de.Hilster@ATConsultancy.nl\n");
fprintf(f, " *\n");
fprintf(f, " * Do not make changes to this file--changes will be lost!\n");
fprintf(f, " *\n");
fprintf(f, " */\n\n\n");
}
void JAVA::pragma(char *lang, char *code, char *value) {
if(strcmp(lang, "java") != 0) return;
String s = value;
s.replace("\\\"", "\"");
if(strcmp(code, "import") == 0) {
jimport = copy_string((char *) s);
fprintf(f_java, "// pragma\nimport %s;\n\n", jimport);
} else if(strcmp(code, "module") == 0) {
if(!classdef_emitted) emit_classdef();
fprintf(f_java, "// pragma\n");
fprintf(f_java, (char *) s);
fprintf(f_java, "\n\n");
} else if(strcmp(code, "shadow") == 0) {
if(shadow && f_shadow) {
fprintf(f_shadow, "// pragma\n");
fprintf(f_shadow, (char *) s);
fprintf(f_shadow, "\n\n");
}
} else if(strcmp(code, "modifiers") == 0) {
method_modifiers = copy_string(value);
} else {
fprintf(stderr,"%s : Line %d. Unrecognized pragma.\n", input_file,line_number);
}
}
// ---------------------------------------------------------------------
// C++ Handling
//
// The following functions provide some support for C++ classes and
// C structs.
// ---------------------------------------------------------------------
void JAVA::add_typedef(DataType *t, char *name) {
if(!shadow) return;
// First check to see if there aren't too many pointers
if (t->is_pointer > 1) return;
if(shadow_classes.lookup(name)) return; // Already added
// Now look up the datatype in our shadow class hash table
if (shadow_classes.lookup(t->name)) {
// Yep. This datatype is in the hash
// Put this types 'new' name into the hash
shadow_classes.add(name,copy_string((char *) shadow_classes.lookup(t->name)));
}
}
void JAVA::cpp_open_class(char *classname, char *rename, char *ctype, int strip) {
this->Language::cpp_open_class(classname,rename,ctype,strip);
if(!shadow) return;
if(rename)
shadow_classname = copy_string(rename);
else shadow_classname = copy_string(classname);
if (strcmp(shadow_classname, module) == 0) {
fprintf(stderr, "class name cannot be equal to module name: %s\n", shadow_classname);
SWIG_exit(1);
}
shadow_classes.add(classname, shadow_classname);
if(ctype && strcmp(ctype, "struct") == 0) {
sprintf(bigbuf, "struct %s", classname);
shadow_classes.add(copy_string(bigbuf), shadow_classname);
}
sprintf(bigbuf, "%s.java", shadow_classname);
if(!(f_shadow = fopen(bigbuf, "w"))) {
fprintf(stderr, "Unable to create shadow class file: %s\n", bigbuf);
}
emit_shadow_banner(f_shadow);
if(*package)
fprintf(f_shadow, "package %s;\n\n", package);
else fprintf(f_shadow, "import %s;\n\n", module);
if(jimport != NULL)
fprintf(f_shadow, "import %s;\n\n", jimport);
shadow_classdef = "";
shadow_classdef << "public class " << shadow_classname << " %BASECLASS% " << "{\n";
shadow_baseclass = "";
shadow_classdef_emitted = 0;
have_default_constructor = 0;
}
void JAVA::emit_shadow_classdef() {
if(*shadow_baseclass) {
sprintf(bigbuf, "extends %s", shadow_baseclass);
shadow_classdef.replace("%BASECLASS%", bigbuf);
} else {
shadow_classdef.replace("%BASECLASS%", "");
shadow_classdef << " public long _self = 0;\n";
shadow_classdef << " public boolean _selfown = false;\n\n";
shadow_classdef << " public static Object newInstance(long p) {\n";
shadow_classdef << " return new " << shadow_classname << "(new Long(p));\n";
shadow_classdef << " };\n\n";
shadow_classdef << " public " << shadow_classname << "(java.lang.Long obj) {\n" << tab4 << "_self = obj.longValue();\n }\n\n";
}
shadow_classdef << " public Class _selfClass() {\n" << tab4 << "return " << shadow_classname << ".class;\n" << " };\n\n";
fprintf(f_shadow, (char *) shadow_classdef);
shadow_classdef_emitted = 1;
}
void JAVA::cpp_close_class() {
this->Language::cpp_close_class();
if(!shadow) return;
if(!shadow_classdef_emitted) emit_shadow_classdef();
if(have_default_constructor == 0) {
fprintf(f_shadow, " public %s() {}\n\n", shadow_classname);
}
fprintf(f_shadow, "}\n");
fclose(f_shadow);
f_shadow = NULL;
free(shadow_classname);
shadow_classname = NULL;
}
void JAVA::cpp_member_func(char *name, char *iname, DataType *t, ParmList *l) {
String arg;
String nativecall = "";
this->Language::cpp_member_func(name,iname,t,l);
if(!shadow) return;
if(!shadow_classdef_emitted) emit_shadow_classdef();
char *javarettype = JavaTypeFromTypemap("jtype", typemap_lang, t, iname);
if(!javarettype) javarettype = SwigTcToJavaType(t, 1, 0);
char *shadowrettype = JavaTypeFromTypemap("jstype", typemap_lang, t, iname);
if(!shadowrettype && t->type == T_USER) {
shadowrettype = (char *)shadow_classes.lookup(t->name);
}
fprintf(f_shadow, " public %s %s(", (shadowrettype) ? shadowrettype : javarettype, iname);
if((t->type != T_VOID || t->is_pointer)) {
nativecall << "return ";
if(shadowrettype) {
nativecall << "new " << shadowrettype << "(new Long(";
}
}
nativecall << module << "." << name_member(iname, shadow_classname) << "(_self";
int pcount = l->nparms;
for (int i = 0; i < pcount ; i++) {
Parm *p = l->get(i); // Get the ith argument
// Produce string representation of source and target arguments
if(p->name && *(p->name))
arg = p->name;
else {
arg = "arg";
arg << i;
}
if(p->t->type == T_USER && shadow_classes.lookup(p->t->name)) {
nativecall << ", " << arg << "._self";
} else nativecall << ", " << arg;
char *jtype = JavaTypeFromTypemap("jtype", typemap_lang, p->t, p->name);
if(!jtype) jtype = SwigTcToJavaType(p->t, 0, 0);
char *jstype = JavaTypeFromTypemap("jstype", typemap_lang, p->t, p->name);
if(!jstype && p->t->type == T_USER) {
jstype = (char *)shadow_classes.lookup(p->t->name);
}
// Add to java function header
fprintf(f_shadow, "%s %s", (jstype) ? jstype : jtype, (char *) arg);
if(i != pcount-1) {
fprintf(f_shadow, ", ");
}
}
if((t->type != T_VOID || t->is_pointer) && shadowrettype)
nativecall << "))";
nativecall << ");\n";
fprintf(f_shadow, ") {\n");
fprintf(f_shadow, "\t%s\n", (char *) nativecall);
fprintf(f_shadow, " }\n\n");
}
void JAVA::cpp_static_func(char *name, char *iname, DataType *t, ParmList *l) {
String arg;
String nativecall = "";
this->Language::cpp_static_func(name,iname,t,l);
if(!shadow) return;
if(!shadow_classdef_emitted) emit_shadow_classdef();
char *javarettype = JavaTypeFromTypemap("jtype", typemap_lang, t, iname);
if(!javarettype) javarettype = SwigTcToJavaType(t, 1, 0);
char *shadowrettype = JavaTypeFromTypemap("jstype", typemap_lang, t, iname);
if(!shadowrettype && t->type == T_USER) {
shadowrettype = (char *)shadow_classes.lookup(t->name);
}
fprintf(f_shadow, " public static %s %s(", (shadowrettype) ? shadowrettype : javarettype, iname);
if((t->type != T_VOID || t->is_pointer)) {
nativecall << "return ";
if(shadowrettype) {
nativecall << "new " << shadowrettype << "(new Long(";
}
}
nativecall << module << "." << name_member(iname, shadow_classname) << "(";
int pcount = l->nparms;
int gencomma = 0;
for (int i = 0; i < pcount ; i++) {
Parm *p = l->get(i); // Get the ith argument
// Produce string representation of source and target arguments
if(p->name && *(p->name))
arg = p->name;
else {
arg = "arg";
arg << i;
}
if(gencomma) nativecall << ", ";
if(p->t->type == T_USER && shadow_classes.lookup(p->t->name)) {
nativecall << arg << "._self";
} else nativecall << arg;
gencomma = 1;
char *jtype = JavaTypeFromTypemap("jtype", typemap_lang, p->t, p->name);
if(!jtype) jtype = SwigTcToJavaType(p->t, 0, 0);
char *jstype = JavaTypeFromTypemap("jstype", typemap_lang, p->t, p->name);
if(!jstype && p->t->type == T_USER) {
jstype = (char *)shadow_classes.lookup(p->t->name);
}
// Add to java function header
fprintf(f_shadow, "%s %s", (jstype) ? jstype : jtype, (char *) arg);
if(i != pcount-1) {
fprintf(f_shadow, ", ");
}
}
if((t->type != T_VOID || t->is_pointer) && shadowrettype)
nativecall << "))";
nativecall << ");\n";
fprintf(f_shadow, ") {\n");
fprintf(f_shadow, "\t%s\n", (char *) nativecall);
fprintf(f_shadow, " }\n\n");
}
void JAVA::cpp_constructor(char *name, char *iname, ParmList *l) {
this->Language::cpp_constructor(name,iname,l);
if(!shadow) return;
if(!shadow_classdef_emitted) emit_shadow_classdef();
String nativecall = "";
String arg;
fprintf(f_shadow, " public %s(", shadow_classname);
nativecall << " if(_self == 0 && " << shadow_classname << ".class == _selfClass()) {\n";
if (iname != NULL)
nativecall << tab8 << " _self = " << module << "." << name_construct(iname) << "(";
else
nativecall << tab8 << " _self = " << module << "." << name_construct(shadow_classname) << "(";
int pcount = l->nparms;
if(pcount == 0) // We must have a default constructor
have_default_constructor = 1;
for (int i = 0; i < pcount ; i++) {
Parm *p = l->get(i); // Get the ith argument
// Produce string representation of source and target arguments
if(p->name && *(p->name))
arg = p->name;
else {
arg = "arg";
arg << i;
}
char *jtype = JavaTypeFromTypemap("jtype", typemap_lang, p->t, p->name);
if(!jtype) jtype = SwigTcToJavaType(p->t, 0, 0);
char *jstype = JavaTypeFromTypemap("jstype", typemap_lang, p->t, p->name);
if(!jstype) jstype = SwigTcToJavaType(p->t, 0, 1);
if(strcmp(jtype, jstype) == 0) jstype = NULL;
// Add to java function header
fprintf(f_shadow, "%s %s", (jstype) ? jstype : jtype, (char *) arg);
if(p->t->type == T_USER && shadow_classes.lookup(p->t->name)) {
nativecall << arg << "._self";
} else nativecall << arg;
if(i != pcount-1) {
nativecall << ", ";
fprintf(f_shadow, ", ");
}
}
fprintf(f_shadow, ") {\n");
nativecall << ");\n";
nativecall << tab8 << " _selfown = true;\n";
nativecall << " }\n";
fprintf(f_shadow, "%s", (char *) nativecall);
fprintf(f_shadow, " }\n\n");
}
void JAVA::cpp_destructor(char *name, char *newname) {
this->Language::cpp_destructor(name,newname);
if(!shadow) return;
if(!shadow_classdef_emitted) emit_shadow_classdef();
char *realname = (newname) ? newname : name;
if(finalize) {
fprintf(f_shadow, " protected void finalize() {\n");
fprintf(f_shadow, " _delete();\n");
fprintf(f_shadow, " };\n\n");
}
fprintf(f_shadow, " public void _delete() {\n");
fprintf(f_shadow, " if(_self != 0 && _selfown && %s.class == _selfClass()) {\n", shadow_classname);
fprintf(f_shadow, "\t%s.%s(_self);\n", module, name_destroy(realname));
fprintf(f_shadow, "\t_self = 0;\n");
fprintf(f_shadow, " }\n");
fprintf(f_shadow, " }\n\n");
}
void JAVA::cpp_class_decl(char *name, char *rename, char *type) {
this->Language::cpp_class_decl(name,rename, type);
if(!shadow) return;
char *realname = (rename) ? rename : name;
shadow_classes.add(name, copy_string(realname));
if(type && strcmp(type, "struct") == 0) {
sprintf(bigbuf, "struct %s", name);
shadow_classes.add(copy_string(bigbuf), rename);
}
}
void JAVA::cpp_inherit(char **baseclass, int) {
this->Language::cpp_inherit(baseclass, 0);
if(!shadow) return;
int cnt = 0;
char **bc = baseclass;
while(*bc++) cnt++;
if(cnt > 1)
fprintf(stderr, "Warning: %s inherits from multiple base classes. Multiple inheritance is not supported.\n", shadow_classname);
shadow_baseclass = copy_string(*baseclass);
}
void JAVA::cpp_variable(char *name, char *iname, DataType *t) {
if(shadow && !shadow_classdef_emitted) emit_shadow_classdef();
if(shadow) member_func = 1;
shadow_name = copy_string((iname) ? iname : name);
this->Language::cpp_variable(name, iname, t);
member_func = 0;
}
void JAVA::cpp_static_var(char *name, char *iname, DataType *t) {
if(shadow) member_func = 1;
shadow_name = copy_string((iname) ? iname : name);
this->Language::cpp_static_var(name, iname, t);
member_func = 0;
}
void JAVA::cpp_declare_const(char *name, char *iname, DataType *type, char *value) {
if(shadow && !shadow_classdef_emitted) emit_shadow_classdef();
if(shadow) member_func = 1;
shadow_name = copy_string((iname) ? iname : name);
this->Language::cpp_declare_const(name, iname, type, value);
member_func = 0;
}
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