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;
30 source_elements_t *source;
31 parameter_t *parameters;
32 scope_chain_t *scope_chain;
39 static const WCHAR prototypeW[] = {'p','r','o','t','o','t', 'y', 'p','e',0};
41 static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
42 static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
43 static const WCHAR toLocaleStringW[] = {'t','o','L','o','c','a','l','e','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};
46 static const WCHAR hasOwnPropertyW[] = {'h','a','s','O','w','n','P','r','o','p','e','r','t','y',0};
47 static const WCHAR propertyIsEnumerableW[] = {'p','r','o','p','e','r','t','y','I','s','E','n','u','m','e','r','a','b','l','e',0};
48 static const WCHAR isPrototypeOfW[] = {'i','s','P','r','o','t','o','t','y','p','e','O','f',0};
50 static IDispatch *get_this(DISPPARAMS *dp)
54 for(i=0; i < dp->cNamedArgs; i++) {
55 if(dp->rgdispidNamedArgs[i] == DISPID_THIS) {
56 if(V_VT(dp->rgvarg+i) == VT_DISPATCH)
57 return V_DISPATCH(dp->rgvarg+i);
59 WARN("This is not VT_DISPATCH\n");
64 TRACE("no this passed\n");
68 static HRESULT init_parameters(DispatchEx *var_disp, FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
69 jsexcept_t *ei, IServiceProvider *caller)
76 V_VT(&var_empty) = VT_EMPTY;
77 cargs = dp->cArgs - dp->cNamedArgs;
79 for(param = function->parameters; param; param = param->next) {
80 hres = jsdisp_propput_name(var_disp, param->identifier, lcid,
81 i < cargs ? dp->rgvarg + dp->cArgs-1 - i : &var_empty,
92 static HRESULT init_arguments(DispatchEx *arg_disp, FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
93 jsexcept_t *ei, IServiceProvider *caller)
99 for(i=0; i < dp->cArgs-dp->cNamedArgs; i++) {
100 hres = jsdisp_propput_idx(arg_disp, i, lcid, dp->rgvarg+dp->cArgs-1-i, ei, caller);
106 V_I4(&var) = dp->cArgs - dp->cNamedArgs;
107 return jsdisp_propput_name(arg_disp, lengthW, lcid, &var, ei, caller);
110 static HRESULT create_var_disp(FunctionInstance *function, LCID lcid, DISPPARAMS *dp, jsexcept_t *ei,
111 IServiceProvider *caller, DispatchEx **ret)
113 DispatchEx *var_disp, *arg_disp;
116 static const WCHAR argumentsW[] = {'a','r','g','u','m','e','n','t','s',0};
118 hres = create_dispex(function->dispex.ctx, NULL, NULL, &var_disp);
122 hres = create_dispex(function->dispex.ctx, NULL, NULL, &arg_disp);
123 if(SUCCEEDED(hres)) {
124 hres = init_arguments(arg_disp, function, lcid, dp, ei, caller);
125 if(SUCCEEDED(hres)) {
128 V_VT(&var) = VT_DISPATCH;
129 V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(arg_disp);
130 hres = jsdisp_propput_name(var_disp, argumentsW, lcid, &var, ei, caller);
133 jsdisp_release(arg_disp);
137 hres = init_parameters(var_disp, function, lcid, dp, ei, caller);
139 jsdisp_release(var_disp);
147 static HRESULT invoke_source(FunctionInstance *function, IDispatch *this_obj, LCID lcid, DISPPARAMS *dp,
148 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
150 DispatchEx *var_disp;
151 exec_ctx_t *exec_ctx;
152 scope_chain_t *scope;
155 if(!function->source) {
156 FIXME("no source\n");
160 hres = create_var_disp(function, lcid, dp, ei, caller, &var_disp);
164 hres = scope_push(function->scope_chain, var_disp, &scope);
165 if(SUCCEEDED(hres)) {
166 hres = create_exec_ctx(this_obj, var_disp, scope, &exec_ctx);
167 scope_release(scope);
172 hres = exec_source(exec_ctx, function->parser, function->source, ei, retv);
173 exec_release(exec_ctx);
178 static HRESULT invoke_function(FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
179 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
183 if(!(this_obj = get_this(dp)))
184 this_obj = (IDispatch*)_IDispatchEx_(function->dispex.ctx->script_disp);
186 return invoke_source(function, this_obj, lcid, dp, retv, ei, caller);
189 static HRESULT invoke_constructor(FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
190 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
192 DispatchEx *this_obj;
195 hres = create_object(function->dispex.ctx, &function->dispex, &this_obj);
199 hres = invoke_source(function, (IDispatch*)_IDispatchEx_(this_obj), lcid, dp, retv, ei, caller);
200 jsdisp_release(this_obj);
204 V_VT(retv) = VT_DISPATCH;
205 V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(this_obj);
209 static HRESULT invoke_value_proc(FunctionInstance *function, LCID lcid, WORD flags, DISPPARAMS *dp,
210 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
212 DispatchEx *this_obj = NULL;
213 IDispatch *this_disp;
216 this_disp = get_this(dp);
218 this_obj = iface_to_jsdisp((IUnknown*)this_disp);
220 hres = function->value_proc(this_obj ? this_obj : function->dispex.ctx->script_disp, lcid,
221 flags, dp, retv, ei, caller);
224 jsdisp_release(this_obj);
228 static HRESULT function_to_string(FunctionInstance *function, BSTR *ret)
232 if(function->value_proc) {
233 FIXME("Builtin functions not implemented\n");
237 str = SysAllocStringLen(function->src_str, function->src_len);
239 return E_OUTOFMEMORY;
245 static HRESULT Function_length(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
246 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
248 FunctionInstance *This = (FunctionInstance*)dispex;
250 TRACE("%p %d\n", This, This->length);
253 case DISPATCH_PROPERTYGET:
255 V_I4(retv) = This->length;
258 FIXME("unimplemented flags %x\n", flags);
265 static HRESULT Function_toString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
266 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
268 FunctionInstance *function;
274 if(!is_class(dispex, JSCLASS_FUNCTION)) {
275 FIXME("throw TypeError\n");
279 function = (FunctionInstance*)dispex;
281 hres = function_to_string(function, &str);
286 V_VT(retv) = VT_BSTR;
294 static HRESULT Function_toLocaleString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
295 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
301 static HRESULT Function_apply(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
302 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
308 static HRESULT Function_call(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
309 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
315 static HRESULT Function_hasOwnProperty(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
316 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
322 static HRESULT Function_propertyIsEnumerable(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
323 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
329 static HRESULT Function_isPrototypeOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
330 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
336 HRESULT Function_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
337 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
339 FunctionInstance *function;
343 if(dispex->builtin_info->class != JSCLASS_FUNCTION) {
344 ERR("dispex is not a function\n");
348 function = (FunctionInstance*)dispex;
351 case DISPATCH_METHOD:
352 if(function->value_proc)
353 return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
355 return invoke_function(function, lcid, dp, retv, ei, caller);
357 case DISPATCH_PROPERTYGET: {
361 hres = function_to_string(function, &str);
365 V_VT(retv) = VT_BSTR;
370 case DISPATCH_CONSTRUCT:
371 if(function->value_proc)
372 return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
374 return invoke_constructor(function, lcid, dp, retv, ei, caller);
377 FIXME("not implemented flags %x\n", flags);
384 static void Function_destructor(DispatchEx *dispex)
386 FunctionInstance *This = (FunctionInstance*)dispex;
389 parser_release(This->parser);
390 if(This->scope_chain)
391 scope_release(This->scope_chain);
395 static const builtin_prop_t Function_props[] = {
396 {applyW, Function_apply, PROPF_METHOD},
397 {callW, Function_call, PROPF_METHOD},
398 {hasOwnPropertyW, Function_hasOwnProperty, PROPF_METHOD},
399 {isPrototypeOfW, Function_isPrototypeOf, PROPF_METHOD},
400 {lengthW, Function_length, 0},
401 {propertyIsEnumerableW, Function_propertyIsEnumerable, PROPF_METHOD},
402 {toLocaleStringW, Function_toLocaleString, PROPF_METHOD},
403 {toStringW, Function_toString, PROPF_METHOD}
406 static const builtin_info_t Function_info = {
408 {NULL, Function_value, 0},
409 sizeof(Function_props)/sizeof(*Function_props),
415 static HRESULT FunctionConstr_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
416 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
422 static HRESULT FunctionProt_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
423 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
429 static HRESULT create_function(script_ctx_t *ctx, const builtin_info_t *builtin_info, DWORD flags,
430 BOOL funcprot, DispatchEx *prototype, FunctionInstance **ret)
432 FunctionInstance *function;
435 function = heap_alloc_zero(sizeof(FunctionInstance));
437 return E_OUTOFMEMORY;
440 hres = init_dispex(&function->dispex, ctx, &Function_info, prototype);
441 else if(builtin_info)
442 hres = init_dispex_from_constr(&function->dispex, ctx, builtin_info, ctx->function_constr);
444 hres = init_dispex_from_constr(&function->dispex, ctx, &Function_info, ctx->function_constr);
448 function->flags = flags;
449 function->length = flags & PROPF_ARGMASK;
455 static HRESULT set_prototype(script_ctx_t *ctx, DispatchEx *dispex, DispatchEx *prototype)
460 V_VT(&var) = VT_DISPATCH;
461 V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(prototype);
462 memset(&jsexcept, 0, sizeof(jsexcept));
464 return jsdisp_propput_name(dispex, prototypeW, ctx->lcid, &var, &jsexcept, NULL/*FIXME*/);
467 HRESULT create_builtin_function(script_ctx_t *ctx, builtin_invoke_t value_proc,
468 const builtin_info_t *builtin_info, DWORD flags, DispatchEx *prototype, DispatchEx **ret)
470 FunctionInstance *function;
473 hres = create_function(ctx, builtin_info, flags, FALSE, NULL, &function);
477 hres = set_prototype(ctx, &function->dispex, prototype);
479 jsdisp_release(&function->dispex);
483 function->value_proc = value_proc;
485 *ret = &function->dispex;
489 HRESULT create_source_function(parser_ctx_t *ctx, parameter_t *parameters, source_elements_t *source,
490 scope_chain_t *scope_chain, const WCHAR *src_str, DWORD src_len, DispatchEx **ret)
492 FunctionInstance *function;
493 DispatchEx *prototype;
498 hres = create_object(ctx->script, NULL, &prototype);
502 hres = create_function(ctx->script, NULL, PROPF_CONSTR, FALSE, NULL, &function);
503 if(SUCCEEDED(hres)) {
504 hres = set_prototype(ctx->script, &function->dispex, prototype);
506 jsdisp_release(&function->dispex);
508 jsdisp_release(prototype);
512 function->source = source;
513 function->parameters = parameters;
516 scope_addref(scope_chain);
517 function->scope_chain = scope_chain;
521 function->parser = ctx;
523 for(iter = parameters; iter; iter = iter->next)
525 function->length = length;
527 function->src_str = src_str;
528 function->src_len = src_len;
530 *ret = &function->dispex;
534 HRESULT init_function_constr(script_ctx_t *ctx, DispatchEx *object_prototype)
536 FunctionInstance *prot, *constr;
539 hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, object_prototype, &prot);
543 prot->value_proc = FunctionProt_value;
545 hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, &prot->dispex, &constr);
546 if(SUCCEEDED(hres)) {
547 constr->value_proc = FunctionConstr_value;
548 hres = set_prototype(ctx, &constr->dispex, &prot->dispex);
550 jsdisp_release(&constr->dispex);
552 jsdisp_release(&prot->dispex);
556 ctx->function_constr = &constr->dispex;