2 * Copyright 2008 Jacek Caban for CodeWeavers
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/debug.h"
24 WINE_DEFAULT_DEBUG_CHANNEL(jscript);
28 builtin_invoke_t value_proc;
31 source_elements_t *source;
32 parameter_t *parameters;
33 scope_chain_t *scope_chain;
40 static const WCHAR prototypeW[] = {'p','r','o','t','o','t', 'y', 'p','e',0};
42 static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
43 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
44 static const WCHAR applyW[] = {'a','p','p','l','y',0};
45 static const WCHAR callW[] = {'c','a','l','l',0};
47 static IDispatch *get_this(DISPPARAMS *dp)
51 for(i=0; i < dp->cNamedArgs; i++) {
52 if(dp->rgdispidNamedArgs[i] == DISPID_THIS) {
53 if(V_VT(dp->rgvarg+i) == VT_DISPATCH)
54 return V_DISPATCH(dp->rgvarg+i);
56 WARN("This is not VT_DISPATCH\n");
61 TRACE("no this passed\n");
65 static HRESULT init_parameters(DispatchEx *var_disp, FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
66 jsexcept_t *ei, IServiceProvider *caller)
73 V_VT(&var_empty) = VT_EMPTY;
76 for(param = function->parameters; param; param = param->next) {
77 hres = jsdisp_propput_name(var_disp, param->identifier, lcid,
78 i < cargs ? get_arg(dp,i) : &var_empty, ei, caller);
88 static HRESULT Arguments_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
89 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
95 static const builtin_info_t Arguments_info = {
97 {NULL, Arguments_value, 0},
103 static HRESULT create_arguments(script_ctx_t *ctx, LCID lcid, DISPPARAMS *dp,
104 jsexcept_t *ei, IServiceProvider *caller, DispatchEx **ret)
111 args = heap_alloc_zero(sizeof(DispatchEx));
113 return E_OUTOFMEMORY;
115 hres = init_dispex_from_constr(args, ctx, &Arguments_info, ctx->object_constr);
121 for(i=0; i < arg_cnt(dp); i++) {
122 hres = jsdisp_propput_idx(args, i, lcid, get_arg(dp,i), ei, caller);
127 if(SUCCEEDED(hres)) {
129 V_I4(&var) = arg_cnt(dp);
130 hres = jsdisp_propput_name(args, lengthW, lcid, &var, ei, caller);
134 jsdisp_release(args);
142 static HRESULT create_var_disp(FunctionInstance *function, LCID lcid, DISPPARAMS *dp, jsexcept_t *ei,
143 IServiceProvider *caller, DispatchEx **ret)
145 DispatchEx *var_disp, *arg_disp;
148 static const WCHAR argumentsW[] = {'a','r','g','u','m','e','n','t','s',0};
150 hres = create_dispex(function->dispex.ctx, NULL, NULL, &var_disp);
154 hres = create_arguments(function->dispex.ctx, lcid, dp, ei, caller, &arg_disp);
155 if(SUCCEEDED(hres)) {
158 V_VT(&var) = VT_DISPATCH;
159 V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(arg_disp);
160 hres = jsdisp_propput_name(var_disp, argumentsW, lcid, &var, ei, caller);
161 jsdisp_release(arg_disp);
165 hres = init_parameters(var_disp, function, lcid, dp, ei, caller);
167 jsdisp_release(var_disp);
175 static HRESULT invoke_source(FunctionInstance *function, IDispatch *this_obj, LCID lcid, DISPPARAMS *dp,
176 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
178 DispatchEx *var_disp;
179 exec_ctx_t *exec_ctx;
180 scope_chain_t *scope;
183 if(!function->source) {
184 FIXME("no source\n");
188 hres = create_var_disp(function, lcid, dp, ei, caller, &var_disp);
192 hres = scope_push(function->scope_chain, var_disp, &scope);
193 if(SUCCEEDED(hres)) {
194 hres = create_exec_ctx(this_obj, var_disp, scope, &exec_ctx);
195 scope_release(scope);
200 hres = exec_source(exec_ctx, function->parser, function->source, ei, retv);
201 exec_release(exec_ctx);
206 static HRESULT invoke_function(FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
207 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
211 if(!(this_obj = get_this(dp)))
212 this_obj = (IDispatch*)_IDispatchEx_(function->dispex.ctx->script_disp);
214 return invoke_source(function, this_obj, lcid, dp, retv, ei, caller);
217 static HRESULT invoke_constructor(FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
218 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
220 DispatchEx *this_obj;
223 hres = create_object(function->dispex.ctx, &function->dispex, &this_obj);
227 hres = invoke_source(function, (IDispatch*)_IDispatchEx_(this_obj), lcid, dp, retv, ei, caller);
229 jsdisp_release(this_obj);
233 V_VT(retv) = VT_DISPATCH;
234 V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(this_obj);
238 static HRESULT invoke_value_proc(FunctionInstance *function, LCID lcid, WORD flags, DISPPARAMS *dp,
239 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
241 DispatchEx *this_obj = NULL;
242 IDispatch *this_disp;
245 this_disp = get_this(dp);
247 this_obj = iface_to_jsdisp((IUnknown*)this_disp);
249 hres = function->value_proc(this_obj ? this_obj : function->dispex.ctx->script_disp, lcid,
250 flags, dp, retv, ei, caller);
253 jsdisp_release(this_obj);
257 static HRESULT call_function(FunctionInstance *function, IDispatch *this_obj, LCID lcid, DISPPARAMS *args,
258 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
262 if(function->value_proc) {
263 DispatchEx *jsthis = NULL;
266 jsthis = iface_to_jsdisp((IUnknown*)this_obj);
268 FIXME("this_obj is not DispatchEx\n");
271 hres = function->value_proc(jsthis ? jsthis : function->dispex.ctx->script_disp, lcid,
272 DISPATCH_METHOD, args, retv, ei, caller);
275 jsdisp_release(jsthis);
277 hres = invoke_source(function,
278 this_obj ? this_obj : (IDispatch*)_IDispatchEx_(function->dispex.ctx->script_disp),
279 lcid, args, retv, ei, caller);
285 static HRESULT function_to_string(FunctionInstance *function, BSTR *ret)
289 static const WCHAR native_prefixW[] = {'\n','f','u','n','c','t','i','o','n',' '};
290 static const WCHAR native_suffixW[] =
291 {'(',')',' ','{','\n',' ',' ',' ',' ','[','n','a','t','i','v','e',' ','c','o','d','e',']','\n','}','\n'};
293 if(function->value_proc) {
296 name_len = strlenW(function->name);
297 str = SysAllocStringLen(NULL, sizeof(native_prefixW) + name_len*sizeof(WCHAR) + sizeof(native_suffixW));
299 return E_OUTOFMEMORY;
301 memcpy(str, native_prefixW, sizeof(native_prefixW));
302 memcpy(str + sizeof(native_prefixW)/sizeof(WCHAR), function->name, name_len*sizeof(WCHAR));
303 memcpy(str + sizeof(native_prefixW)/sizeof(WCHAR) + name_len, native_suffixW, sizeof(native_suffixW));
305 str = SysAllocStringLen(function->src_str, function->src_len);
307 return E_OUTOFMEMORY;
314 static HRESULT Function_length(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
315 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
317 FunctionInstance *This = (FunctionInstance*)dispex;
319 TRACE("%p %d\n", This, This->length);
322 case DISPATCH_PROPERTYGET:
324 V_I4(retv) = This->length;
327 FIXME("unimplemented flags %x\n", flags);
334 static HRESULT Function_toString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
335 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
337 FunctionInstance *function;
343 if(!is_class(dispex, JSCLASS_FUNCTION))
344 return throw_type_error(dispex->ctx, ei, IDS_NOT_FUNC, NULL);
346 function = (FunctionInstance*)dispex;
348 hres = function_to_string(function, &str);
353 V_VT(retv) = VT_BSTR;
361 static HRESULT array_to_args(DispatchEx *arg_array, LCID lcid, jsexcept_t *ei, IServiceProvider *caller,
368 hres = jsdisp_propget_name(arg_array, lengthW, lcid, &var, ei, NULL/*FIXME*/);
372 hres = to_uint32(arg_array->ctx, &var, ei, &length);
377 argv = heap_alloc(length * sizeof(VARIANT));
379 return E_OUTOFMEMORY;
381 for(i=0; i<length; i++) {
382 hres = jsdisp_propget_idx(arg_array, i, lcid, argv+i, ei, caller);
385 VariantClear(argv+i);
391 args->cArgs = length;
396 static HRESULT Function_apply(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
397 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
399 FunctionInstance *function;
400 DISPPARAMS args = {NULL,NULL,0,0};
407 if(!is_class(dispex, JSCLASS_FUNCTION)) {
408 FIXME("dispex is not a function\n");
412 function = (FunctionInstance*)dispex;
416 hres = to_object(dispex->ctx, get_arg(dp,0), &this_obj);
422 DispatchEx *arg_array = NULL;
424 if(V_VT(get_arg(dp,1)) == VT_DISPATCH) {
425 arg_array = iface_to_jsdisp((IUnknown*)V_DISPATCH(get_arg(dp,1)));
426 if(!is_class(arg_array, JSCLASS_ARRAY) && !is_class(arg_array, JSCLASS_ARGUMENTS)) {
427 jsdisp_release(arg_array);
433 hres = array_to_args(arg_array, lcid, ei, caller, &args);
434 jsdisp_release(arg_array);
436 FIXME("throw TypeError\n");
441 hres = call_function(function, this_obj, lcid, &args, retv, ei, caller);
444 IDispatch_Release(this_obj);
445 for(i=0; i<args.cArgs; i++)
446 VariantClear(args.rgvarg+i);
447 heap_free(args.rgvarg);
451 static HRESULT Function_call(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
452 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
454 FunctionInstance *function;
455 DISPPARAMS args = {NULL,NULL,0,0};
456 IDispatch *this_obj = NULL;
462 if(!is_class(dispex, JSCLASS_FUNCTION)) {
463 FIXME("dispex is not a function\n");
467 function = (FunctionInstance*)dispex;
471 hres = to_object(dispex->ctx, get_arg(dp,0), &this_obj);
478 args.rgvarg = dp->rgvarg + dp->cArgs - args.cArgs-1;
480 hres = call_function(function, this_obj, lcid, &args, retv, ei, caller);
483 IDispatch_Release(this_obj);
487 HRESULT Function_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
488 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
490 FunctionInstance *function;
494 if(dispex->builtin_info->class != JSCLASS_FUNCTION) {
495 ERR("dispex is not a function\n");
499 function = (FunctionInstance*)dispex;
502 case DISPATCH_METHOD:
503 if(function->value_proc)
504 return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
506 return invoke_function(function, lcid, dp, retv, ei, caller);
508 case DISPATCH_PROPERTYGET: {
512 hres = function_to_string(function, &str);
516 V_VT(retv) = VT_BSTR;
521 case DISPATCH_CONSTRUCT:
522 if(function->value_proc)
523 return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
525 return invoke_constructor(function, lcid, dp, retv, ei, caller);
528 FIXME("not implemented flags %x\n", flags);
535 static void Function_destructor(DispatchEx *dispex)
537 FunctionInstance *This = (FunctionInstance*)dispex;
540 parser_release(This->parser);
541 if(This->scope_chain)
542 scope_release(This->scope_chain);
546 static const builtin_prop_t Function_props[] = {
547 {applyW, Function_apply, PROPF_METHOD|2},
548 {callW, Function_call, PROPF_METHOD|1},
549 {lengthW, Function_length, 0},
550 {toStringW, Function_toString, PROPF_METHOD}
553 static const builtin_info_t Function_info = {
555 {NULL, Function_value, 0},
556 sizeof(Function_props)/sizeof(*Function_props),
562 static HRESULT FunctionConstr_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
563 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
569 static HRESULT FunctionProt_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
570 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
576 static HRESULT create_function(script_ctx_t *ctx, const builtin_info_t *builtin_info, DWORD flags,
577 BOOL funcprot, DispatchEx *prototype, FunctionInstance **ret)
579 FunctionInstance *function;
582 function = heap_alloc_zero(sizeof(FunctionInstance));
584 return E_OUTOFMEMORY;
587 hres = init_dispex(&function->dispex, ctx, &Function_info, prototype);
588 else if(builtin_info)
589 hres = init_dispex_from_constr(&function->dispex, ctx, builtin_info, ctx->function_constr);
591 hres = init_dispex_from_constr(&function->dispex, ctx, &Function_info, ctx->function_constr);
595 function->flags = flags;
596 function->length = flags & PROPF_ARGMASK;
602 static HRESULT set_prototype(script_ctx_t *ctx, DispatchEx *dispex, DispatchEx *prototype)
607 V_VT(&var) = VT_DISPATCH;
608 V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(prototype);
609 memset(&jsexcept, 0, sizeof(jsexcept));
611 return jsdisp_propput_name(dispex, prototypeW, ctx->lcid, &var, &jsexcept, NULL/*FIXME*/);
614 HRESULT create_builtin_function(script_ctx_t *ctx, builtin_invoke_t value_proc, const WCHAR *name,
615 const builtin_info_t *builtin_info, DWORD flags, DispatchEx *prototype, DispatchEx **ret)
617 FunctionInstance *function;
620 hres = create_function(ctx, builtin_info, flags, FALSE, NULL, &function);
624 hres = set_prototype(ctx, &function->dispex, prototype);
626 jsdisp_release(&function->dispex);
630 function->value_proc = value_proc;
631 function->name = name;
633 *ret = &function->dispex;
637 HRESULT create_source_function(parser_ctx_t *ctx, parameter_t *parameters, source_elements_t *source,
638 scope_chain_t *scope_chain, const WCHAR *src_str, DWORD src_len, DispatchEx **ret)
640 FunctionInstance *function;
641 DispatchEx *prototype;
646 hres = create_object(ctx->script, NULL, &prototype);
650 hres = create_function(ctx->script, NULL, PROPF_CONSTR, FALSE, NULL, &function);
651 if(SUCCEEDED(hres)) {
652 hres = set_prototype(ctx->script, &function->dispex, prototype);
654 jsdisp_release(&function->dispex);
656 jsdisp_release(prototype);
660 function->source = source;
661 function->parameters = parameters;
664 scope_addref(scope_chain);
665 function->scope_chain = scope_chain;
669 function->parser = ctx;
671 for(iter = parameters; iter; iter = iter->next)
673 function->length = length;
675 function->src_str = src_str;
676 function->src_len = src_len;
678 *ret = &function->dispex;
682 HRESULT init_function_constr(script_ctx_t *ctx, DispatchEx *object_prototype)
684 FunctionInstance *prot, *constr;
687 static const WCHAR FunctionW[] = {'F','u','n','c','t','i','o','n',0};
689 hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, object_prototype, &prot);
693 prot->value_proc = FunctionProt_value;
694 prot->name = prototypeW;
696 hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, &prot->dispex, &constr);
697 if(SUCCEEDED(hres)) {
698 constr->value_proc = FunctionConstr_value;
699 constr->name = FunctionW;
700 hres = set_prototype(ctx, &constr->dispex, &prot->dispex);
702 jsdisp_release(&constr->dispex);
704 jsdisp_release(&prot->dispex);
708 ctx->function_constr = &constr->dispex;