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 valueOfW[] = {'v','a','l','u','e','O','f',0};
45 static const WCHAR applyW[] = {'a','p','p','l','y',0};
46 static const WCHAR callW[] = {'c','a','l','l',0};
47 static const WCHAR hasOwnPropertyW[] = {'h','a','s','O','w','n','P','r','o','p','e','r','t','y',0};
48 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};
49 static const WCHAR isPrototypeOfW[] = {'i','s','P','r','o','t','o','t','y','p','e','O','f',0};
51 static IDispatch *get_this(DISPPARAMS *dp)
55 for(i=0; i < dp->cNamedArgs; i++) {
56 if(dp->rgdispidNamedArgs[i] == DISPID_THIS) {
57 if(V_VT(dp->rgvarg+i) == VT_DISPATCH)
58 return V_DISPATCH(dp->rgvarg+i);
60 WARN("This is not VT_DISPATCH\n");
65 TRACE("no this passed\n");
69 static HRESULT init_parameters(DispatchEx *var_disp, FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
70 jsexcept_t *ei, IServiceProvider *caller)
77 V_VT(&var_empty) = VT_EMPTY;
78 cargs = dp->cArgs - dp->cNamedArgs;
80 for(param = function->parameters; param; param = param->next) {
81 hres = jsdisp_propput_name(var_disp, param->identifier, lcid,
82 i < cargs ? dp->rgvarg + dp->cArgs-1 - i : &var_empty,
93 static HRESULT init_arguments(DispatchEx *arg_disp, FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
94 jsexcept_t *ei, IServiceProvider *caller)
100 for(i=0; i < dp->cArgs-dp->cNamedArgs; i++) {
101 hres = jsdisp_propput_idx(arg_disp, i, lcid, dp->rgvarg+dp->cArgs-1-i, ei, caller);
107 V_I4(&var) = dp->cArgs - dp->cNamedArgs;
108 return jsdisp_propput_name(arg_disp, lengthW, lcid, &var, ei, caller);
111 static HRESULT create_var_disp(FunctionInstance *function, LCID lcid, DISPPARAMS *dp, jsexcept_t *ei,
112 IServiceProvider *caller, DispatchEx **ret)
114 DispatchEx *var_disp, *arg_disp;
117 static const WCHAR argumentsW[] = {'a','r','g','u','m','e','n','t','s',0};
119 hres = create_dispex(function->dispex.ctx, NULL, NULL, &var_disp);
123 hres = create_dispex(function->dispex.ctx, NULL, NULL, &arg_disp);
124 if(SUCCEEDED(hres)) {
125 hres = init_arguments(arg_disp, function, lcid, dp, ei, caller);
126 if(SUCCEEDED(hres)) {
129 V_VT(&var) = VT_DISPATCH;
130 V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(arg_disp);
131 hres = jsdisp_propput_name(var_disp, argumentsW, lcid, &var, ei, caller);
134 jsdisp_release(arg_disp);
138 hres = init_parameters(var_disp, function, lcid, dp, ei, caller);
140 jsdisp_release(var_disp);
148 static HRESULT invoke_source(FunctionInstance *function, IDispatch *this_obj, LCID lcid, DISPPARAMS *dp,
149 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
151 DispatchEx *var_disp;
152 exec_ctx_t *exec_ctx;
153 scope_chain_t *scope;
156 if(!function->source) {
157 FIXME("no source\n");
161 hres = create_var_disp(function, lcid, dp, ei, caller, &var_disp);
165 hres = scope_push(function->scope_chain, var_disp, &scope);
166 if(SUCCEEDED(hres)) {
167 hres = create_exec_ctx(this_obj, var_disp, scope, &exec_ctx);
168 scope_release(scope);
173 hres = exec_source(exec_ctx, function->parser, function->source, ei, retv);
174 exec_release(exec_ctx);
179 static HRESULT invoke_function(FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
180 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
184 if(!(this_obj = get_this(dp)))
185 this_obj = (IDispatch*)_IDispatchEx_(function->dispex.ctx->script_disp);
187 return invoke_source(function, this_obj, lcid, dp, retv, ei, caller);
190 static HRESULT invoke_constructor(FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
191 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
193 DispatchEx *this_obj;
196 hres = create_object(function->dispex.ctx, &function->dispex, &this_obj);
200 hres = invoke_source(function, (IDispatch*)_IDispatchEx_(this_obj), lcid, dp, retv, ei, caller);
201 jsdisp_release(this_obj);
205 V_VT(retv) = VT_DISPATCH;
206 V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(this_obj);
210 static HRESULT invoke_value_proc(FunctionInstance *function, LCID lcid, WORD flags, DISPPARAMS *dp,
211 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
213 DispatchEx *this_obj = NULL;
214 IDispatch *this_disp;
217 this_disp = get_this(dp);
219 this_obj = iface_to_jsdisp((IUnknown*)this_disp);
221 hres = function->value_proc(this_obj ? this_obj : function->dispex.ctx->script_disp, lcid,
222 flags, dp, retv, ei, caller);
225 jsdisp_release(this_obj);
229 static HRESULT function_to_string(FunctionInstance *function, BSTR *ret)
233 if(function->value_proc) {
234 FIXME("Builtin functions not implemented\n");
238 str = SysAllocStringLen(function->src_str, function->src_len);
240 return E_OUTOFMEMORY;
246 static HRESULT Function_length(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
247 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
249 FunctionInstance *This = (FunctionInstance*)dispex;
251 TRACE("%p %d\n", This, This->length);
254 case DISPATCH_PROPERTYGET:
256 V_I4(retv) = This->length;
259 FIXME("unimplemented flags %x\n", flags);
266 static HRESULT Function_toString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
267 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
269 FunctionInstance *function;
275 if(!is_class(dispex, JSCLASS_FUNCTION)) {
276 FIXME("throw TypeError\n");
280 function = (FunctionInstance*)dispex;
282 hres = function_to_string(function, &str);
287 V_VT(retv) = VT_BSTR;
295 static HRESULT Function_toLocaleString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
296 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
302 static HRESULT Function_valueOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
303 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
305 WARN("should be inherited from Object\n");
308 IDispatchEx_AddRef(_IDispatchEx_(dispex));
310 V_VT(retv) = VT_DISPATCH;
311 V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(dispex);
317 static HRESULT Function_apply(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
318 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
324 static HRESULT Function_call(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
325 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
331 static HRESULT Function_hasOwnProperty(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
332 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
338 static HRESULT Function_propertyIsEnumerable(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
339 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
345 static HRESULT Function_isPrototypeOf(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
346 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
352 HRESULT Function_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
353 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
355 FunctionInstance *function;
359 if(dispex->builtin_info->class != JSCLASS_FUNCTION) {
360 ERR("dispex is not a function\n");
364 function = (FunctionInstance*)dispex;
367 case DISPATCH_METHOD:
368 if(function->value_proc)
369 return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
371 return invoke_function(function, lcid, dp, retv, ei, caller);
373 case DISPATCH_PROPERTYGET: {
377 hres = function_to_string(function, &str);
381 V_VT(retv) = VT_BSTR;
386 case DISPATCH_CONSTRUCT:
387 if(function->value_proc)
388 return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
390 return invoke_constructor(function, lcid, dp, retv, ei, caller);
393 FIXME("not implemented flags %x\n", flags);
400 static void Function_destructor(DispatchEx *dispex)
402 FunctionInstance *This = (FunctionInstance*)dispex;
405 parser_release(This->parser);
406 if(This->scope_chain)
407 scope_release(This->scope_chain);
411 static const builtin_prop_t Function_props[] = {
412 {applyW, Function_apply, PROPF_METHOD},
413 {callW, Function_call, PROPF_METHOD},
414 {hasOwnPropertyW, Function_hasOwnProperty, PROPF_METHOD},
415 {isPrototypeOfW, Function_isPrototypeOf, PROPF_METHOD},
416 {lengthW, Function_length, 0},
417 {propertyIsEnumerableW, Function_propertyIsEnumerable, PROPF_METHOD},
418 {toLocaleStringW, Function_toLocaleString, PROPF_METHOD},
419 {toStringW, Function_toString, PROPF_METHOD},
420 {valueOfW, Function_valueOf, PROPF_METHOD}
423 static const builtin_info_t Function_info = {
425 {NULL, Function_value, 0},
426 sizeof(Function_props)/sizeof(*Function_props),
432 static HRESULT FunctionConstr_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
433 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
439 static HRESULT FunctionProt_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
440 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
446 static HRESULT create_function(script_ctx_t *ctx, const builtin_info_t *builtin_info, DWORD flags,
447 BOOL funcprot, DispatchEx *prototype, FunctionInstance **ret)
449 FunctionInstance *function;
452 function = heap_alloc_zero(sizeof(FunctionInstance));
454 return E_OUTOFMEMORY;
457 hres = init_dispex(&function->dispex, ctx, &Function_info, prototype);
458 else if(builtin_info)
459 hres = init_dispex_from_constr(&function->dispex, ctx, builtin_info, ctx->function_constr);
461 hres = init_dispex_from_constr(&function->dispex, ctx, &Function_info, ctx->function_constr);
465 function->flags = flags;
466 function->length = flags & PROPF_ARGMASK;
472 V_VT(&var) = VT_DISPATCH;
473 V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(prototype);
474 memset(&jsexcept, 0, sizeof(jsexcept));
476 hres = jsdisp_propput_name(&function->dispex, prototypeW, ctx->lcid, &var, &jsexcept, NULL/*FIXME*/);
478 IDispatchEx_Release(_IDispatchEx_(&function->dispex));
487 HRESULT create_builtin_function(script_ctx_t *ctx, builtin_invoke_t value_proc,
488 const builtin_info_t *builtin_info, DWORD flags, DispatchEx *prototype, DispatchEx **ret)
490 FunctionInstance *function;
493 hres = create_function(ctx, builtin_info, flags, FALSE, prototype, &function);
497 function->value_proc = value_proc;
499 *ret = &function->dispex;
503 HRESULT create_source_function(parser_ctx_t *ctx, parameter_t *parameters, source_elements_t *source,
504 scope_chain_t *scope_chain, const WCHAR *src_str, DWORD src_len, DispatchEx **ret)
506 FunctionInstance *function;
507 DispatchEx *prototype;
512 hres = create_object(ctx->script, NULL, &prototype);
516 hres = create_function(ctx->script, NULL, PROPF_CONSTR, FALSE, prototype, &function);
517 jsdisp_release(prototype);
521 function->source = source;
522 function->parameters = parameters;
525 scope_addref(scope_chain);
526 function->scope_chain = scope_chain;
530 function->parser = ctx;
532 for(iter = parameters; iter; iter = iter->next)
534 function->length = length;
536 function->src_str = src_str;
537 function->src_len = src_len;
539 *ret = &function->dispex;
543 HRESULT init_function_constr(script_ctx_t *ctx)
545 FunctionInstance *prot, *constr;
548 hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, NULL, &prot);
552 prot->value_proc = FunctionProt_value;
554 hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, &prot->dispex, &constr);
555 jsdisp_release(&prot->dispex);
559 constr->value_proc = FunctionConstr_value;
560 ctx->function_constr = &constr->dispex;