blob: fc658f5b54fba746e80492774f740c7c3e2c5896 [file] [log] [blame]
#include "aidl_language.h"
#include "options.h"
#include "search_path.h"
#include "Type.h"
#include "generate_java.h"
#include <unistd.h>
#include <fcntl.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <map>
#ifdef HAVE_MS_C_RUNTIME
#include <io.h>
#include <sys/stat.h>
#endif
#ifndef O_BINARY
# define O_BINARY 0
#endif
using namespace std;
static void
test_document(document_item_type* d)
{
while (d) {
if (d->item_type == INTERFACE_TYPE) {
interface_type* c = (interface_type*)d;
printf("interface %s %s {\n", c->package, c->name.data);
interface_item_type *q = (interface_item_type*)c->interface_items;
while (q) {
if (q->item_type == METHOD_TYPE) {
method_type *m = (method_type*)q;
printf(" %s %s(", m->type.type.data, m->name.data);
arg_type *p = m->args;
while (p) {
printf("%s %s",p->type.type.data,p->name.data);
if (p->next) printf(", ");
p=p->next;
}
printf(")");
printf(";\n");
}
q=q->next;
}
printf("}\n");
}
else if (d->item_type == PARCELABLE_TYPE) {
parcelable_type* b = (parcelable_type*)d;
printf("parcelable %s %s;\n", b->package, b->name.data);
}
else {
printf("UNKNOWN d=0x%08x d->item_type=%ld\n", (long)d, d->item_type);
}
d = d->next;
}
}
// ==========================================================
int
convert_direction(const char* direction)
{
if (direction == NULL) {
return IN_PARAMETER;
}
if (0 == strcmp(direction, "in")) {
return IN_PARAMETER;
}
if (0 == strcmp(direction, "out")) {
return OUT_PARAMETER;
}
return INOUT_PARAMETER;
}
// ==========================================================
struct import_info {
const char* from;
const char* filename;
buffer_type statement;
const char* neededClass;
document_item_type* doc;
struct import_info* next;
};
document_item_type* g_document = NULL;
import_info* g_imports = NULL;
static void
main_document_parsed(document_item_type* d)
{
g_document = d;
}
static void
main_import_parsed(buffer_type* statement)
{
import_info* import = (import_info*)malloc(sizeof(import_info));
memset(import, 0, sizeof(import_info));
import->from = strdup(g_currentFilename);
import->statement.lineno = statement->lineno;
import->statement.data = strdup(statement->data);
import->statement.extra = NULL;
import->next = g_imports;
import->neededClass = parse_import_statement(statement->data);
g_imports = import;
}
static ParserCallbacks g_mainCallbacks = {
&main_document_parsed,
&main_import_parsed
};
char*
parse_import_statement(const char* text)
{
const char* end;
int len;
while (isspace(*text)) {
text++;
}
while (!isspace(*text)) {
text++;
}
while (isspace(*text)) {
text++;
}
end = text;
while (!isspace(*end) && *end != ';') {
end++;
}
len = end-text;
char* rv = (char*)malloc(len+1);
memcpy(rv, text, len);
rv[len] = '\0';
return rv;
}
// ==========================================================
static void
import_import_parsed(buffer_type* statement)
{
}
static ParserCallbacks g_importCallbacks = {
&main_document_parsed,
&import_import_parsed
};
// ==========================================================
static int
check_filename(const char* filename, const char* package, buffer_type* name)
{
const char* p;
string expected;
string fn;
size_t len;
char cwd[MAXPATHLEN];
bool valid = false;
#ifdef HAVE_WINDOWS_PATHS
if (isalpha(filename[0]) && filename[1] == ':'
&& filename[2] == OS_PATH_SEPARATOR) {
#else
if (filename[0] == OS_PATH_SEPARATOR) {
#endif
fn = filename;
} else {
fn = getcwd(cwd, sizeof(cwd));
len = fn.length();
if (fn[len-1] != OS_PATH_SEPARATOR) {
fn += OS_PATH_SEPARATOR;
}
fn += filename;
}
if (package) {
expected = package;
expected += '.';
}
len = expected.length();
for (size_t i=0; i<len; i++) {
if (expected[i] == '.') {
expected[i] = OS_PATH_SEPARATOR;
}
}
p = strchr(name->data, '.');
len = p ? p-name->data : strlen(name->data);
expected.append(name->data, len);
expected += ".aidl";
len = fn.length();
valid = (len >= expected.length());
if (valid) {
p = fn.c_str() + (len - expected.length());
#ifdef HAVE_WINDOWS_PATHS
if (OS_PATH_SEPARATOR != '/') {
// Input filename under cygwin most likely has / separators
// whereas the expected string uses \\ separators. Adjust
// them accordingly.
for (char *c = const_cast<char *>(p); *c; ++c) {
if (*c == '/') *c = OS_PATH_SEPARATOR;
}
}
#endif
#ifdef OS_CASE_SENSITIVE
valid = (expected == p);
#else
valid = !strcasecmp(expected.c_str(), p);
#endif
}
if (!valid) {
fprintf(stderr, "%s:%d interface %s should be declared in a file"
" called %s.\n",
filename, name->lineno, name->data, expected.c_str());
return 1;
}
return 0;
}
static int
check_filenames(const char* filename, document_item_type* items)
{
int err = 0;
while (items) {
if (items->item_type == PARCELABLE_TYPE) {
parcelable_type* p = (parcelable_type*)items;
err |= check_filename(filename, p->package, &p->name);
}
else if (items->item_type == INTERFACE_TYPE) {
interface_type* c = (interface_type*)items;
err |= check_filename(filename, c->package, &c->name);
}
else {
fprintf(stderr, "aidl: internal error unkown document type %d.\n",
items->item_type);
return 1;
}
items = items->next;
}
return err;
}
// ==========================================================
static const char*
kind_to_string(int kind)
{
switch (kind)
{
case Type::INTERFACE:
return "an interface";
case Type::PARCELABLE:
return "a parcelable";
default:
return "ERROR";
}
}
static char*
rfind(char* str, char c)
{
char* p = str + strlen(str) - 1;
while (p >= str) {
if (*p == c) {
return p;
}
p--;
}
return NULL;
}
static int
gather_types(const char* filename, document_item_type* items)
{
int err = 0;
while (items) {
Type* type;
if (items->item_type == PARCELABLE_TYPE) {
parcelable_type* p = (parcelable_type*)items;
type = new ParcelableType(p->package ? p->package : "",
p->name.data, false, filename, p->name.lineno);
}
else if (items->item_type == INTERFACE_TYPE) {
interface_type* c = (interface_type*)items;
type = new InterfaceType(c->package ? c->package : "",
c->name.data, false, c->oneway,
filename, c->name.lineno);
}
else {
fprintf(stderr, "aidl: internal error %s:%d\n", __FILE__, __LINE__);
return 1;
}
Type* old = NAMES.Find(type->QualifiedName());
if (old == NULL) {
NAMES.Add(type);
if (items->item_type == INTERFACE_TYPE) {
// for interfaces, also add the stub and proxy types, we don't
// bother checking these for duplicates, because the parser
// won't let us do it.
interface_type* c = (interface_type*)items;
string name = c->name.data;
name += ".Stub";
Type* stub = new Type(c->package ? c->package : "",
name, Type::GENERATED, false, false,
filename, c->name.lineno);
NAMES.Add(stub);
name = c->name.data;
name += ".Stub.Proxy";
Type* proxy = new Type(c->package ? c->package : "",
name, Type::GENERATED, false, false,
filename, c->name.lineno);
NAMES.Add(proxy);
}
} else {
if (old->Kind() == Type::BUILT_IN) {
fprintf(stderr, "%s:%d attempt to redefine built in class %s\n",
filename, type->DeclLine(),
type->QualifiedName().c_str());
err = 1;
}
else if (type->Kind() != old->Kind()) {
const char* oldKind = kind_to_string(old->Kind());
const char* newKind = kind_to_string(type->Kind());
fprintf(stderr, "%s:%d attempt to redefine %s as %s,\n",
filename, type->DeclLine(),
type->QualifiedName().c_str(), newKind);
fprintf(stderr, "%s:%d previously defined here as %s.\n",
old->DeclFile().c_str(), old->DeclLine(), oldKind);
err = 1;
}
}
items = items->next;
}
return err;
}
// ==========================================================
static bool
matches_keyword(const char* str)
{
static const char* KEYWORDS[] = { "abstract", "assert", "boolean", "break",
"byte", "case", "catch", "char", "class", "const", "continue",
"default", "do", "double", "else", "enum", "extends", "final",
"finally", "float", "for", "goto", "if", "implements", "import",
"instanceof", "int", "interface", "long", "native", "new", "package",
"private", "protected", "public", "return", "short", "static",
"strictfp", "super", "switch", "synchronized", "this", "throw",
"throws", "transient", "try", "void", "volatile", "while",
"true", "false", "null",
NULL
};
const char** k = KEYWORDS;
while (*k) {
if (0 == strcmp(str, *k)) {
return true;
}
k++;
}
return false;
}
static int
check_method(const char* filename, method_type* m)
{
int err = 0;
// return type
Type* returnType = NAMES.Search(m->type.type.data);
if (returnType == NULL) {
fprintf(stderr, "%s:%d unknown return type %s\n", filename,
m->type.type.lineno, m->type.type.data);
err = 1;
return err;
}
if (!returnType->CanBeMarshalled()) {
fprintf(stderr, "%s:%d return type %s can't be marshalled.\n", filename,
m->type.type.lineno, m->type.type.data);
err = 1;
}
if (m->type.dimension > 0 && !returnType->CanBeArray()) {
fprintf(stderr, "%s:%d return type %s%s can't be an array.\n", filename,
m->type.array_token.lineno, m->type.type.data,
m->type.array_token.data);
err = 1;
}
if (m->type.dimension > 1) {
fprintf(stderr, "%s:%d return type %s%s only one"
" dimensional arrays are supported\n", filename,
m->type.array_token.lineno, m->type.type.data,
m->type.array_token.data);
err = 1;
}
int index = 1;
arg_type* arg = m->args;
while (arg) {
Type* t = NAMES.Search(arg->type.type.data);
// check the arg type
if (t == NULL) {
fprintf(stderr, "%s:%d parameter %s (%d) unknown type %s\n",
filename, m->type.type.lineno, arg->name.data, index,
arg->type.type.data);
err = 1;
goto next;
}
if (!t->CanBeMarshalled()) {
fprintf(stderr, "%s:%d parameter %d: '%s %s' can't be marshalled.\n",
filename, m->type.type.lineno, index,
arg->type.type.data, arg->name.data);
err = 1;
}
if (arg->direction.data == NULL
&& (arg->type.dimension != 0 || t->CanBeOutParameter())) {
fprintf(stderr, "%s:%d parameter %d: '%s %s' can be an out"
" parameter, so you must declare it as in,"
" out or inout.\n",
filename, m->type.type.lineno, index,
arg->type.type.data, arg->name.data);
err = 1;
}
if (convert_direction(arg->direction.data) != IN_PARAMETER
&& !t->CanBeOutParameter()
&& arg->type.dimension == 0) {
fprintf(stderr, "%s:%d parameter %d: '%s %s %s' can only be an in"
" parameter.\n",
filename, m->type.type.lineno, index,
arg->direction.data, arg->type.type.data,
arg->name.data);
err = 1;
}
if (arg->type.dimension > 0 && !t->CanBeArray()) {
fprintf(stderr, "%s:%d parameter %d: '%s %s%s %s' can't be an"
" array.\n", filename,
m->type.array_token.lineno, index, arg->direction.data,
arg->type.type.data, arg->type.array_token.data,
arg->name.data);
err = 1;
}
if (arg->type.dimension > 1) {
fprintf(stderr, "%s:%d parameter %d: '%s %s%s %s' only one"
" dimensional arrays are supported\n", filename,
m->type.array_token.lineno, index, arg->direction.data,
arg->type.type.data, arg->type.array_token.data,
arg->name.data);
err = 1;
}
// check that the name doesn't match a keyword
if (matches_keyword(arg->name.data)) {
fprintf(stderr, "%s:%d parameter %d %s is named the same as a"
" Java keyword\n",
filename, m->name.lineno, index, arg->name.data);
err = 1;
}
next:
index++;
arg = arg->next;
}
return err;
}
static int
check_types(const char* filename, document_item_type* items)
{
int err = 0;
while (items) {
// (nothing to check for PARCELABLE_TYPE)
if (items->item_type == INTERFACE_TYPE) {
map<string,method_type*> methodNames;
interface_type* c = (interface_type*)items;
interface_item_type* member = c->interface_items;
while (member) {
if (member->item_type == METHOD_TYPE) {
method_type* m = (method_type*)member;
err |= check_method(filename, m);
// prevent duplicate methods
if (methodNames.find(m->name.data) == methodNames.end()) {
methodNames[m->name.data] = m;
} else {
fprintf(stderr,"%s:%d attempt to redefine method %s,\n",
filename, m->name.lineno, m->name.data);
method_type* old = methodNames[m->name.data];
fprintf(stderr, "%s:%d previously defined here.\n",
filename, old->name.lineno);
err = 1;
}
}
member = member->next;
}
}
items = items->next;
}
return err;
}
// ==========================================================
static int
exactly_one_interface(const char* filename, const document_item_type* items, const Options& options,
bool* onlyParcelable)
{
if (items == NULL) {
fprintf(stderr, "%s: file does not contain any interfaces\n",
filename);
return 1;
}
const document_item_type* next = items->next;
if (items->next != NULL) {
int lineno = -1;
if (next->item_type == INTERFACE_TYPE) {
lineno = ((interface_type*)next)->interface_token.lineno;
}
else if (next->item_type == PARCELABLE_TYPE) {
lineno = ((parcelable_type*)next)->parcelable_token.lineno;
}
fprintf(stderr, "%s:%d aidl can only handle one interface per file\n",
filename, lineno);
return 1;
}
if (items->item_type == PARCELABLE_TYPE) {
*onlyParcelable = true;
if (options.failOnParcelable) {
fprintf(stderr, "%s:%d aidl can only generate code for interfaces, not"
" parcelables,\n", filename,
((parcelable_type*)items)->parcelable_token.lineno);
fprintf(stderr, "%s:%d .aidl files that only declare parcelables "
"don't need to go in the Makefile.\n", filename,
((parcelable_type*)items)->parcelable_token.lineno);
return 1;
}
} else {
*onlyParcelable = false;
}
return 0;
}
// ==========================================================
void
generate_dep_file(const Options& options)
{
/* we open the file in binary mode to ensure that the same output is
* generated on all platforms !!
*/
FILE* to = fopen(options.depFileName.c_str(), "wb");
if (to == NULL) {
return;
}
const char* slash = "\\";
import_info* import = g_imports;
if (import == NULL) {
slash = "";
}
fprintf(to, "%s: \\\n", options.outputFileName.c_str());
fprintf(to, " %s %s\n", options.inputFileName.c_str(), slash);
while (import) {
if (import->next == NULL) {
slash = "";
}
if (import->filename) {
fprintf(to, " %s %s\n", import->filename, slash);
}
import = import->next;
}
fprintf(to, "\n");
fclose(to);
}
// ==========================================================
static string
generate_outputFileName(const Options& options, const document_item_type* items)
{
string result;
// items has already been checked to have only one interface.
if (items->item_type == INTERFACE_TYPE) {
interface_type* type = (interface_type*)items;
// create the path to the destination folder based on the
// interface package name
result = options.outputBaseFolder;
result += OS_PATH_SEPARATOR;
string package = type->package;
size_t len = package.length();
for (size_t i=0; i<len; i++) {
if (package[i] == '.') {
package[i] = OS_PATH_SEPARATOR;
}
}
result += package;
// add the filename by replacing the .aidl extension to .java
const char* p = strchr(type->name.data, '.');
len = p ? p-type->name.data : strlen(type->name.data);
result += OS_PATH_SEPARATOR;
result.append(type->name.data, len);
result += ".java";
}
return result;
}
// ==========================================================
static void
check_outputFileName(const string& path) {
size_t len = path.length();
for (size_t i=0; i<len ; i++) {
if (path[i] == OS_PATH_SEPARATOR) {
string p = path.substr(0, i);
if (access(path.data(), F_OK) != 0) {
#ifdef HAVE_MS_C_RUNTIME
_mkdir(p.data());
#else
mkdir(p.data(), S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP);
#endif
}
}
}
}
// ==========================================================
static int
parse_preprocessed_file(const string& filename)
{
int err;
FILE* f = fopen(filename.c_str(), "rb");
if (f == NULL) {
fprintf(stderr, "aidl: can't open preprocessed file: %s\n",
filename.c_str());
return 1;
}
int lineno = 1;
char line[1024];
char type[1024];
char fullname[1024];
while (fgets(line, sizeof(line), f)) {
// skip comments and empty lines
if (!line[0] || strncmp(line, "//", 2) == 0) {
continue;
}
sscanf(line, "%s %[^; \r\n\t];", type, fullname);
char* packagename;
char* classname = rfind(fullname, '.');
if (classname != NULL) {
*classname = '\0';
classname++;
packagename = fullname;
} else {
classname = fullname;
packagename = NULL;
}
//printf("%s:%d:...%s...%s...%s...\n", filename.c_str(), lineno,
// type, packagename, classname);
document_item_type* doc;
if (0 == strcmp("parcelable", type)) {
parcelable_type* parcl = (parcelable_type*)malloc(
sizeof(parcelable_type));
memset(parcl, 0, sizeof(parcelable_type));
parcl->document_item.item_type = PARCELABLE_TYPE;
parcl->parcelable_token.lineno = lineno;
parcl->parcelable_token.data = strdup(type);
parcl->package = packagename ? strdup(packagename) : NULL;
parcl->name.lineno = lineno;
parcl->name.data = strdup(classname);
parcl->semicolon_token.lineno = lineno;
parcl->semicolon_token.data = strdup(";");
doc = (document_item_type*)parcl;
}
else if (0 == strcmp("interface", type)) {
interface_type* iface = (interface_type*)malloc(
sizeof(interface_type));
memset(iface, 0, sizeof(interface_type));
iface->document_item.item_type = INTERFACE_TYPE;
iface->interface_token.lineno = lineno;
iface->interface_token.data = strdup(type);
iface->package = packagename ? strdup(packagename) : NULL;
iface->name.lineno = lineno;
iface->name.data = strdup(classname);
iface->open_brace_token.lineno = lineno;
iface->open_brace_token.data = strdup("{");
iface->close_brace_token.lineno = lineno;
iface->close_brace_token.data = strdup("}");
doc = (document_item_type*)iface;
}
else {
fprintf(stderr, "%s:%d: bad type in line: %s\n",
filename.c_str(), lineno, line);
return 1;
}
err = gather_types(filename.c_str(), doc);
lineno++;
}
if (!feof(f)) {
fprintf(stderr, "%s:%d: error reading file, line to long.\n",
filename.c_str(), lineno);
return 1;
}
fclose(f);
return 0;
}
// ==========================================================
static int
compile_aidl(const Options& options)
{
int err = 0, N;
set_import_paths(options.importPaths);
register_base_types();
// import the preprocessed file
N = options.preprocessedFiles.size();
for (int i=0; i<N; i++) {
const string& s = options.preprocessedFiles[i];
err |= parse_preprocessed_file(s);
}
if (err != 0) {
return err;
}
// parse the main file
g_callbacks = &g_mainCallbacks;
err = parse_aidl(options.inputFileName.c_str());
document_item_type* mainDoc = g_document;
g_document = NULL;
// parse the imports
g_callbacks = &g_mainCallbacks;
import_info* import = g_imports;
while (import) {
if (NAMES.Find(import->neededClass) == NULL) {
import->filename = find_import_file(import->neededClass);
if (!import->filename) {
fprintf(stderr, "%s:%d: couldn't find import for class %s\n",
import->from, import->statement.lineno,
import->neededClass);
err |= 1;
} else {
err |= parse_aidl(import->filename);
import->doc = g_document;
if (import->doc == NULL) {
err |= 1;
}
}
}
import = import->next;
}
// bail out now if parsing wasn't successful
if (err != 0 || mainDoc == NULL) {
//fprintf(stderr, "aidl: parsing failed, stopping.\n");
return 1;
}
// complain about ones that aren't in the right files
err |= check_filenames(options.inputFileName.c_str(), mainDoc);
import = g_imports;
while (import) {
err |= check_filenames(import->filename, import->doc);
import = import->next;
}
// gather the types that have been declared
err |= gather_types(options.inputFileName.c_str(), mainDoc);
import = g_imports;
while (import) {
err |= gather_types(import->filename, import->doc);
import = import->next;
}
#if 0
printf("---- main doc ----\n");
test_document(mainDoc);
import = g_imports;
while (import) {
printf("---- import doc ----\n");
test_document(import->doc);
import = import->next;
}
NAMES.Dump();
#endif
// check the referenced types in mainDoc to make sure we've imported them
err |= check_types(options.inputFileName.c_str(), mainDoc);
// finally, there really only needs to be one thing in mainDoc, and it
// needs to be an interface.
bool onlyParcelable = false;
err |= exactly_one_interface(options.inputFileName.c_str(), mainDoc, options, &onlyParcelable);
// after this, there shouldn't be any more errors because of the
// input.
if (err != 0 || mainDoc == NULL) {
return 1;
}
// they didn't ask to fail on parcelables, so just exit quietly.
if (onlyParcelable && !options.failOnParcelable) {
return 0;
}
// if we were asked to, generate a make dependency file
if (options.depFileName != "") {
generate_dep_file(options);
}
// if needed, generate the outputFileName from the outputBaseFolder
string outputFileName = options.outputFileName;
if (outputFileName.length() == 0 &&
options.outputBaseFolder.length() > 0) {
outputFileName = generate_outputFileName(options, mainDoc);
}
// make sure the folders of the output file all exists
check_outputFileName(outputFileName);
err = generate_java(outputFileName, options.inputFileName.c_str(),
(interface_type*)mainDoc);
return err;
}
static int
preprocess_aidl(const Options& options)
{
vector<string> lines;
int err;
// read files
int N = options.filesToPreprocess.size();
for (int i=0; i<N; i++) {
g_callbacks = &g_mainCallbacks;
err = parse_aidl(options.filesToPreprocess[i].c_str());
if (err != 0) {
return err;
}
document_item_type* doc = g_document;
string line;
if (doc->item_type == PARCELABLE_TYPE) {
line = "parcelable ";
parcelable_type* parcelable = (parcelable_type*)doc;
if (parcelable->package) {
line += parcelable->package;
line += '.';
}
line += parcelable->name.data;
} else {
line = "interface ";
interface_type* iface = (interface_type*)doc;
if (iface->package) {
line += iface->package;
line += '.';
}
line += iface->name.data;
}
line += ";\n";
lines.push_back(line);
}
// write preprocessed file
int fd = open( options.outputFileName.c_str(),
O_RDWR|O_CREAT|O_TRUNC|O_BINARY,
#ifdef HAVE_MS_C_RUNTIME
_S_IREAD|_S_IWRITE);
#else
S_IRUSR|S_IWUSR|S_IRGRP);
#endif
if (fd == -1) {
fprintf(stderr, "aidl: could not open file for write: %s\n",
options.outputFileName.c_str());
return 1;
}
N = lines.size();
for (int i=0; i<N; i++) {
const string& s = lines[i];
int len = s.length();
if (len != write(fd, s.c_str(), len)) {
fprintf(stderr, "aidl: error writing to file %s\n",
options.outputFileName.c_str());
close(fd);
unlink(options.outputFileName.c_str());
return 1;
}
}
close(fd);
return 0;
}
// ==========================================================
int
main(int argc, const char **argv)
{
int err = 0;
Options options;
int result = parse_options(argc, argv, &options);
if (result) {
return result;
}
switch (options.task)
{
case COMPILE_AIDL:
return compile_aidl(options);
case PREPROCESS_AIDL:
return preprocess_aidl(options);
}
fprintf(stderr, "aidl: internal error\n");
return 1;
}