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Sweden-Number/dlls/jscript/function.c

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/*
* Copyright 2008 Jacek Caban for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <assert.h>
#include "jscript.h"
#include "engine.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(jscript);
typedef struct {
jsdisp_t dispex;
builtin_invoke_t value_proc;
const WCHAR *name;
DWORD flags;
scope_chain_t *scope_chain;
bytecode_t *code;
function_code_t *func_code;
DWORD length;
jsdisp_t *arguments;
} FunctionInstance;
typedef struct {
jsdisp_t jsdisp;
FunctionInstance *function;
jsdisp_t *var_obj;
} ArgumentsInstance;
static inline FunctionInstance *function_from_vdisp(vdisp_t *vdisp)
{
return (FunctionInstance*)vdisp->u.jsdisp;
}
static inline FunctionInstance *function_this(vdisp_t *jsthis)
{
return is_vclass(jsthis, JSCLASS_FUNCTION) ? function_from_vdisp(jsthis) : NULL;
}
static const WCHAR prototypeW[] = {'p','r','o','t','o','t', 'y', 'p','e',0};
static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
static const WCHAR applyW[] = {'a','p','p','l','y',0};
static const WCHAR callW[] = {'c','a','l','l',0};
static const WCHAR argumentsW[] = {'a','r','g','u','m','e','n','t','s',0};
static HRESULT init_parameters(jsdisp_t *var_disp, FunctionInstance *function, unsigned argc, jsval_t *argv)
{
DWORD i=0;
HRESULT hres;
for(i=0; i < function->func_code->param_cnt; i++) {
hres = jsdisp_propput_name(var_disp, function->func_code->params[i],
i < argc ? argv[i] : jsval_undefined());
if(FAILED(hres))
return hres;
}
return S_OK;
}
static HRESULT Arguments_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
FIXME("\n");
return E_NOTIMPL;
}
static void Arguments_destructor(jsdisp_t *jsdisp)
{
ArgumentsInstance *arguments = (ArgumentsInstance*)jsdisp;
jsdisp_release(&arguments->function->dispex);
jsdisp_release(arguments->var_obj);
heap_free(arguments);
}
static unsigned Arguments_idx_length(jsdisp_t *jsdisp)
{
ArgumentsInstance *arguments = (ArgumentsInstance*)jsdisp;
return arguments->function->length;
}
static HRESULT Arguments_idx_get(jsdisp_t *jsdisp, unsigned idx, jsval_t *res)
{
ArgumentsInstance *arguments = (ArgumentsInstance*)jsdisp;
TRACE("%p[%u]\n", arguments, idx);
/* FIXME: Accessing by name won't work for duplicated argument names */
return jsdisp_propget_name(arguments->var_obj, arguments->function->func_code->params[idx], res);
}
static HRESULT Arguments_idx_put(jsdisp_t *jsdisp, unsigned idx, jsval_t val)
{
ArgumentsInstance *arguments = (ArgumentsInstance*)jsdisp;
TRACE("%p[%u] = %s\n", arguments, idx, debugstr_jsval(val));
/* FIXME: Accessing by name won't work for duplicated argument names */
return jsdisp_propput_name(arguments->var_obj, arguments->function->func_code->params[idx], val);
}
static const builtin_info_t Arguments_info = {
JSCLASS_ARGUMENTS,
{NULL, Arguments_value, 0},
0, NULL,
Arguments_destructor,
NULL,
Arguments_idx_length,
Arguments_idx_get,
Arguments_idx_put
};
static HRESULT create_arguments(script_ctx_t *ctx, FunctionInstance *calee, jsdisp_t *var_obj,
unsigned argc, jsval_t *argv, jsdisp_t **ret)
{
ArgumentsInstance *args;
unsigned i;
HRESULT hres;
static const WCHAR caleeW[] = {'c','a','l','l','e','e',0};
args = heap_alloc_zero(sizeof(*args));
if(!args)
return E_OUTOFMEMORY;
hres = init_dispex_from_constr(&args->jsdisp, ctx, &Arguments_info, ctx->object_constr);
if(FAILED(hres)) {
heap_free(args);
return hres;
}
jsdisp_addref(&calee->dispex);
args->function = calee;
args->var_obj = jsdisp_addref(var_obj);
/* Store unnamed arguments directly in arguments object */
for(i = calee->length; i < argc; i++) {
WCHAR buf[12];
static const WCHAR formatW[] = {'%','d',0};
sprintfW(buf, formatW, i);
hres = jsdisp_propput_dontenum(&args->jsdisp, buf, argv[i]);
if(FAILED(hres))
break;
}
if(SUCCEEDED(hres)) {
hres = jsdisp_propput_dontenum(&args->jsdisp, lengthW, jsval_number(argc));
if(SUCCEEDED(hres))
hres = jsdisp_propput_dontenum(&args->jsdisp, caleeW, jsval_disp(to_disp(&calee->dispex)));
}
if(FAILED(hres)) {
jsdisp_release(&args->jsdisp);
return hres;
}
*ret = &args->jsdisp;
return S_OK;
}
static HRESULT create_var_disp(script_ctx_t *ctx, FunctionInstance *function, unsigned argc, jsval_t *argv, jsdisp_t **ret)
{
jsdisp_t *var_disp;
HRESULT hres;
hres = create_dispex(ctx, NULL, NULL, &var_disp);
if(FAILED(hres))
return hres;
hres = init_parameters(var_disp, function, argc, argv);
if(FAILED(hres)) {
jsdisp_release(var_disp);
return hres;
}
*ret = var_disp;
return S_OK;
}
static HRESULT invoke_source(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_obj, unsigned argc, jsval_t *argv,
jsval_t *r)
{
jsdisp_t *var_disp, *arg_disp;
exec_ctx_t *exec_ctx;
scope_chain_t *scope;
HRESULT hres;
if(ctx->state == SCRIPTSTATE_UNINITIALIZED || ctx->state == SCRIPTSTATE_CLOSED) {
WARN("Script engine state does not allow running code.\n");
return E_UNEXPECTED;
}
if(!function->func_code) {
FIXME("no source\n");
return E_FAIL;
}
hres = create_var_disp(ctx, function, argc, argv, &var_disp);
if(FAILED(hres))
return hres;
hres = create_arguments(ctx, function, var_disp, argc, argv, &arg_disp);
if(FAILED(hres)) {
jsdisp_release(var_disp);
return hres;
}
hres = jsdisp_propput(var_disp, argumentsW, PROPF_DONTDELETE, jsval_obj(arg_disp));
if(FAILED(hres)) {
jsdisp_release(arg_disp);
jsdisp_release(var_disp);
return hres;
}
hres = scope_push(function->scope_chain, var_disp, to_disp(var_disp), &scope);
if(SUCCEEDED(hres)) {
hres = create_exec_ctx(ctx, this_obj, var_disp, scope, FALSE, &exec_ctx);
scope_release(scope);
if(SUCCEEDED(hres)) {
jsdisp_t *prev_args;
prev_args = function->arguments;
function->arguments = arg_disp;
hres = exec_source(exec_ctx, function->code, function->func_code, FALSE, r);
function->arguments = prev_args;
exec_release(exec_ctx);
}
}
/* Reset arguments value to cut the reference cycle. Note that since all activation contexts have
* their own arguments property, it's impossible to use prototype's one during name lookup */
jsdisp_propput_name(var_disp, argumentsW, jsval_undefined());
jsdisp_release(arg_disp);
jsdisp_release(var_disp);
return hres;
}
static HRESULT invoke_constructor(script_ctx_t *ctx, FunctionInstance *function, unsigned argc, jsval_t *argv,
jsval_t *r)
{
jsdisp_t *this_obj;
jsval_t var;
HRESULT hres;
hres = create_object(ctx, &function->dispex, &this_obj);
if(FAILED(hres))
return hres;
hres = invoke_source(ctx, function, to_disp(this_obj), argc, argv, &var);
if(FAILED(hres)) {
jsdisp_release(this_obj);
return hres;
}
if(is_object_instance(var)) {
jsdisp_release(this_obj);
*r = var;
}else {
jsval_release(var);
*r = jsval_obj(this_obj);
}
return S_OK;
}
static HRESULT invoke_value_proc(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_disp, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
vdisp_t vthis;
HRESULT hres;
if(this_disp)
set_disp(&vthis, this_disp);
else if(ctx->host_global)
set_disp(&vthis, ctx->host_global);
else
set_jsdisp(&vthis, ctx->global);
hres = function->value_proc(ctx, &vthis, flags, argc, argv, r);
vdisp_release(&vthis);
return hres;
}
static HRESULT call_function(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_obj,
unsigned argc, jsval_t *argv, jsval_t *r)
{
if(function->value_proc)
return invoke_value_proc(ctx, function, this_obj, DISPATCH_METHOD, argc, argv, r);
return invoke_source(ctx, function, this_obj, argc, argv, r);
}
static HRESULT function_to_string(FunctionInstance *function, jsstr_t **ret)
{
jsstr_t *str;
static const WCHAR native_prefixW[] = {'\n','f','u','n','c','t','i','o','n',' '};
static const WCHAR native_suffixW[] =
{'(',')',' ','{','\n',' ',' ',' ',' ','[','n','a','t','i','v','e',' ','c','o','d','e',']','\n','}','\n'};
if(function->value_proc) {
DWORD name_len;
WCHAR *ptr;
name_len = strlenW(function->name);
ptr = jsstr_alloc_buf((sizeof(native_prefixW)+sizeof(native_suffixW))/sizeof(WCHAR) + name_len, &str);
if(!ptr)
return E_OUTOFMEMORY;
memcpy(ptr, native_prefixW, sizeof(native_prefixW));
memcpy(ptr += sizeof(native_prefixW)/sizeof(WCHAR), function->name, name_len*sizeof(WCHAR));
memcpy(ptr + name_len, native_suffixW, sizeof(native_suffixW));
}else {
str = jsstr_alloc_len(function->func_code->source, function->func_code->source_len);
if(!str)
return E_OUTOFMEMORY;
}
*ret = str;
return S_OK;
}
HRESULT Function_invoke(jsdisp_t *func_this, IDispatch *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
{
FunctionInstance *function;
TRACE("func %p this %p\n", func_this, jsthis);
assert(is_class(func_this, JSCLASS_FUNCTION));
function = (FunctionInstance*)func_this;
if(function->value_proc)
return invoke_value_proc(function->dispex.ctx, function, jsthis, flags, argc, argv, r);
if(flags == DISPATCH_CONSTRUCT)
return invoke_constructor(function->dispex.ctx, function, argc, argv, r);
assert(flags == DISPATCH_METHOD);
return invoke_source(function->dispex.ctx, function, jsthis, argc, argv, r);
}
static HRESULT Function_length(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
FunctionInstance *This = function_from_vdisp(jsthis);
TRACE("%p %d\n", This, This->length);
switch(flags) {
case DISPATCH_PROPERTYGET:
*r = jsval_number(This->length);
break;
default:
FIXME("unimplemented flags %x\n", flags);
return E_NOTIMPL;
}
return S_OK;
}
static HRESULT Function_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
FunctionInstance *function;
jsstr_t *str;
HRESULT hres;
TRACE("\n");
if(!(function = function_this(jsthis)))
return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
hres = function_to_string(function, &str);
if(FAILED(hres))
return hres;
if(r)
*r = jsval_string(str);
else
jsstr_release(str);
return S_OK;
}
static HRESULT array_to_args(script_ctx_t *ctx, jsdisp_t *arg_array, unsigned *argc, jsval_t **ret)
{
jsval_t *argv, val;
DWORD length, i;
HRESULT hres;
hres = jsdisp_propget_name(arg_array, lengthW, &val);
if(FAILED(hres))
return hres;
hres = to_uint32(ctx, val, &length);
jsval_release(val);
if(FAILED(hres))
return hres;
argv = heap_alloc(length * sizeof(*argv));
if(!argv)
return E_OUTOFMEMORY;
for(i=0; i<length; i++) {
hres = jsdisp_get_idx(arg_array, i, argv+i);
if(hres == DISP_E_UNKNOWNNAME) {
argv[i] = jsval_undefined();
}else if(FAILED(hres)) {
while(i--)
jsval_release(argv[i]);
heap_free(argv);
return hres;
}
}
*argc = length;
*ret = argv;
return S_OK;
}
static HRESULT Function_apply(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
{
FunctionInstance *function;
jsval_t *args = NULL;
unsigned i, cnt = 0;
IDispatch *this_obj = NULL;
HRESULT hres = S_OK;
TRACE("\n");
if(!(function = function_this(jsthis)))
return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
if(argc) {
if(!is_undefined(argv[0]) && !is_null(argv[0])) {
hres = to_object(ctx, argv[0], &this_obj);
if(FAILED(hres))
return hres;
}
}
if(argc >= 2) {
jsdisp_t *arg_array = NULL;
if(is_object_instance(argv[1])) {
arg_array = iface_to_jsdisp((IUnknown*)get_object(argv[1]));
if(arg_array &&
(!is_class(arg_array, JSCLASS_ARRAY) && !is_class(arg_array, JSCLASS_ARGUMENTS) )) {
jsdisp_release(arg_array);
arg_array = NULL;
}
}
if(arg_array) {
hres = array_to_args(ctx, arg_array, &cnt, &args);
jsdisp_release(arg_array);
}else {
FIXME("throw TypeError\n");
hres = E_FAIL;
}
}
if(SUCCEEDED(hres))
hres = call_function(ctx, function, this_obj, cnt, args, r);
if(this_obj)
IDispatch_Release(this_obj);
for(i=0; i < cnt; i++)
jsval_release(args[i]);
heap_free(args);
return hres;
}
static HRESULT Function_call(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
FunctionInstance *function;
IDispatch *this_obj = NULL;
unsigned cnt = 0;
HRESULT hres;
TRACE("\n");
if(!(function = function_this(jsthis)))
return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
if(argc) {
if(!is_undefined(argv[0]) && !is_null(argv[0])) {
hres = to_object(ctx, argv[0], &this_obj);
if(FAILED(hres))
return hres;
}
cnt = argc-1;
}
hres = call_function(ctx, function, this_obj, cnt, argv+1, r);
if(this_obj)
IDispatch_Release(this_obj);
return hres;
}
HRESULT Function_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
FunctionInstance *function;
TRACE("\n");
if(!is_vclass(jsthis, JSCLASS_FUNCTION)) {
ERR("dispex is not a function\n");
return E_FAIL;
}
function = (FunctionInstance*)jsthis->u.jsdisp;
switch(flags) {
case DISPATCH_METHOD:
assert(function->value_proc != NULL);
return invoke_value_proc(ctx, function, NULL, flags, argc, argv, r);
case DISPATCH_PROPERTYGET: {
HRESULT hres;
jsstr_t *str;
hres = function_to_string(function, &str);
if(FAILED(hres))
return hres;
*r = jsval_string(str);
break;
}
case DISPATCH_CONSTRUCT:
assert(function->value_proc != NULL);
return invoke_value_proc(ctx, function, NULL, flags, argc, argv, r);
default:
FIXME("not implemented flags %x\n", flags);
return E_NOTIMPL;
}
return S_OK;
}
static HRESULT Function_arguments(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
FunctionInstance *function = (FunctionInstance*)jsthis->u.jsdisp;
HRESULT hres = S_OK;
TRACE("\n");
switch(flags) {
case DISPATCH_PROPERTYGET: {
*r = function->arguments ? jsval_obj(jsdisp_addref(function->arguments)) : jsval_null();
break;
}
case DISPATCH_PROPERTYPUT:
break;
default:
FIXME("unimplemented flags %x\n", flags);
hres = E_NOTIMPL;
}
return hres;
}
static void Function_destructor(jsdisp_t *dispex)
{
FunctionInstance *This = (FunctionInstance*)dispex;
if(This->code)
release_bytecode(This->code);
if(This->scope_chain)
scope_release(This->scope_chain);
heap_free(This);
}
static const builtin_prop_t Function_props[] = {
{applyW, Function_apply, PROPF_METHOD|2},
{argumentsW, Function_arguments, 0},
{callW, Function_call, PROPF_METHOD|1},
{lengthW, Function_length, 0},
{toStringW, Function_toString, PROPF_METHOD}
};
static const builtin_info_t Function_info = {
JSCLASS_FUNCTION,
{NULL, Function_value, 0},
sizeof(Function_props)/sizeof(*Function_props),
Function_props,
Function_destructor,
NULL
};
static const builtin_prop_t FunctionInst_props[] = {
{argumentsW, Function_arguments, 0},
{lengthW, Function_length, 0}
};
static const builtin_info_t FunctionInst_info = {
JSCLASS_FUNCTION,
{NULL, Function_value, 0},
sizeof(FunctionInst_props)/sizeof(*FunctionInst_props),
FunctionInst_props,
Function_destructor,
NULL
};
static HRESULT create_function(script_ctx_t *ctx, const builtin_info_t *builtin_info, DWORD flags,
BOOL funcprot, jsdisp_t *prototype, FunctionInstance **ret)
{
FunctionInstance *function;
HRESULT hres;
function = heap_alloc_zero(sizeof(FunctionInstance));
if(!function)
return E_OUTOFMEMORY;
if(funcprot)
hres = init_dispex(&function->dispex, ctx, builtin_info, prototype);
else if(builtin_info)
hres = init_dispex_from_constr(&function->dispex, ctx, builtin_info, ctx->function_constr);
else
hres = init_dispex_from_constr(&function->dispex, ctx, &FunctionInst_info, ctx->function_constr);
if(FAILED(hres)) {
heap_free(function);
return hres;
}
function->flags = flags;
function->length = flags & PROPF_ARGMASK;
*ret = function;
return S_OK;
}
static inline HRESULT set_prototype(script_ctx_t *ctx, jsdisp_t *dispex, jsdisp_t *prototype)
{
return jsdisp_propput_dontenum(dispex, prototypeW, jsval_obj(prototype));
}
HRESULT create_builtin_function(script_ctx_t *ctx, builtin_invoke_t value_proc, const WCHAR *name,
const builtin_info_t *builtin_info, DWORD flags, jsdisp_t *prototype, jsdisp_t **ret)
{
FunctionInstance *function;
HRESULT hres;
hres = create_function(ctx, builtin_info, flags, FALSE, NULL, &function);
if(FAILED(hres))
return hres;
if(builtin_info)
hres = jsdisp_propput_const(&function->dispex, lengthW, jsval_number(function->length));
if(SUCCEEDED(hres))
hres = set_prototype(ctx, &function->dispex, prototype);
if(FAILED(hres)) {
jsdisp_release(&function->dispex);
return hres;
}
function->value_proc = value_proc;
function->name = name;
*ret = &function->dispex;
return S_OK;
}
static HRESULT set_constructor_prop(script_ctx_t *ctx, jsdisp_t *constr, jsdisp_t *prot)
{
static const WCHAR constructorW[] = {'c','o','n','s','t','r','u','c','t','o','r',0};
return jsdisp_propput_dontenum(prot, constructorW, jsval_obj(constr));
}
HRESULT create_builtin_constructor(script_ctx_t *ctx, builtin_invoke_t value_proc, const WCHAR *name,
const builtin_info_t *builtin_info, DWORD flags, jsdisp_t *prototype, jsdisp_t **ret)
{
jsdisp_t *constr;
HRESULT hres;
hres = create_builtin_function(ctx, value_proc, name, builtin_info, flags, prototype, &constr);
if(FAILED(hres))
return hres;
hres = set_constructor_prop(ctx, constr, prototype);
if(FAILED(hres)) {
jsdisp_release(constr);
return hres;
}
*ret = constr;
return S_OK;
}
HRESULT create_source_function(script_ctx_t *ctx, bytecode_t *code, function_code_t *func_code,
scope_chain_t *scope_chain, jsdisp_t **ret)
{
FunctionInstance *function;
jsdisp_t *prototype;
HRESULT hres;
hres = create_object(ctx, NULL, &prototype);
if(FAILED(hres))
return hres;
hres = create_function(ctx, NULL, PROPF_CONSTR, FALSE, NULL, &function);
if(SUCCEEDED(hres)) {
hres = set_prototype(ctx, &function->dispex, prototype);
if(SUCCEEDED(hres))
hres = set_constructor_prop(ctx, &function->dispex, prototype);
if(FAILED(hres))
jsdisp_release(&function->dispex);
}
jsdisp_release(prototype);
if(FAILED(hres))
return hres;
if(scope_chain) {
scope_addref(scope_chain);
function->scope_chain = scope_chain;
}
bytecode_addref(code);
function->code = code;
function->func_code = func_code;
function->length = function->func_code->param_cnt;
*ret = &function->dispex;
return S_OK;
}
static HRESULT construct_function(script_ctx_t *ctx, unsigned argc, jsval_t *argv, IDispatch **ret)
{
WCHAR *str = NULL, *ptr;
unsigned len = 0, i = 0;
bytecode_t *code;
jsdisp_t *function;
jsstr_t **params = NULL;
int j = 0;
HRESULT hres = S_OK;
static const WCHAR function_anonymousW[] = {'f','u','n','c','t','i','o','n',' ','a','n','o','n','y','m','o','u','s','('};
static const WCHAR function_beginW[] = {')',' ','{','\n'};
static const WCHAR function_endW[] = {'\n','}',0};
if(argc) {
params = heap_alloc(argc*sizeof(*params));
if(!params)
return E_OUTOFMEMORY;
if(argc > 2)
len = (argc-2)*2; /* separating commas */
for(i=0; i < argc; i++) {
hres = to_string(ctx, argv[i], params+i);
if(FAILED(hres))
break;
len += jsstr_length(params[i]);
}
}
if(SUCCEEDED(hres)) {
len += (sizeof(function_anonymousW) + sizeof(function_beginW) + sizeof(function_endW)) / sizeof(WCHAR);
str = heap_alloc(len*sizeof(WCHAR));
if(str) {
memcpy(str, function_anonymousW, sizeof(function_anonymousW));
ptr = str + sizeof(function_anonymousW)/sizeof(WCHAR);
if(argc > 1) {
while(1) {
ptr += jsstr_flush(params[j], ptr);
if(++j == argc-1)
break;
*ptr++ = ',';
*ptr++ = ' ';
}
}
memcpy(ptr, function_beginW, sizeof(function_beginW));
ptr += sizeof(function_beginW)/sizeof(WCHAR);
if(argc)
ptr += jsstr_flush(params[argc-1], ptr);
memcpy(ptr, function_endW, sizeof(function_endW));
TRACE("%s\n", debugstr_w(str));
}else {
hres = E_OUTOFMEMORY;
}
}
while(i)
jsstr_release(params[--i]);
heap_free(params);
if(FAILED(hres))
return hres;
hres = compile_script(ctx, str, NULL, NULL, FALSE, FALSE, &code);
heap_free(str);
if(FAILED(hres))
return hres;
if(code->global_code.func_cnt != 1 || code->global_code.var_cnt) {
ERR("Invalid parser result!\n");
release_bytecode(code);
return E_UNEXPECTED;
}
hres = create_source_function(ctx, code, code->global_code.funcs, NULL, &function);
release_bytecode(code);
if(FAILED(hres))
return hres;
*ret = to_disp(function);
return S_OK;
}
static HRESULT FunctionConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
HRESULT hres;
TRACE("\n");
switch(flags) {
case DISPATCH_CONSTRUCT: {
IDispatch *ret;
hres = construct_function(ctx, argc, argv, &ret);
if(FAILED(hres))
return hres;
*r = jsval_disp(ret);
break;
}
default:
FIXME("unimplemented flags %x\n", flags);
return E_NOTIMPL;
}
return S_OK;
}
static HRESULT FunctionProt_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
FIXME("\n");
return E_NOTIMPL;
}
HRESULT init_function_constr(script_ctx_t *ctx, jsdisp_t *object_prototype)
{
FunctionInstance *prot, *constr;
HRESULT hres;
static const WCHAR FunctionW[] = {'F','u','n','c','t','i','o','n',0};
hres = create_function(ctx, &Function_info, PROPF_CONSTR, TRUE, object_prototype, &prot);
if(FAILED(hres))
return hres;
prot->value_proc = FunctionProt_value;
prot->name = prototypeW;
hres = create_function(ctx, &FunctionInst_info, PROPF_CONSTR|1, TRUE, &prot->dispex, &constr);
if(SUCCEEDED(hres)) {
constr->value_proc = FunctionConstr_value;
constr->name = FunctionW;
hres = set_prototype(ctx, &constr->dispex, &prot->dispex);
if(SUCCEEDED(hres))
hres = set_constructor_prop(ctx, &constr->dispex, &prot->dispex);
if(FAILED(hres))
jsdisp_release(&constr->dispex);
}
jsdisp_release(&prot->dispex);
if(FAILED(hres))
return hres;
ctx->function_constr = &constr->dispex;
return S_OK;
}
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