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 applyW[] = {'a','p','p','l','y',0};
44 static const WCHAR callW[] = {'c','a','l','l',0};
46 static IDispatch *get_this(DISPPARAMS *dp)
50 for(i=0; i < dp->cNamedArgs; i++) {
51 if(dp->rgdispidNamedArgs[i] == DISPID_THIS) {
52 if(V_VT(dp->rgvarg+i) == VT_DISPATCH)
53 return V_DISPATCH(dp->rgvarg+i);
55 WARN("This is not VT_DISPATCH\n");
60 TRACE("no this passed\n");
64 static HRESULT init_parameters(DispatchEx *var_disp, FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
65 jsexcept_t *ei, IServiceProvider *caller)
72 V_VT(&var_empty) = VT_EMPTY;
73 cargs = dp->cArgs - dp->cNamedArgs;
75 for(param = function->parameters; param; param = param->next) {
76 hres = jsdisp_propput_name(var_disp, param->identifier, lcid,
77 i < cargs ? dp->rgvarg + dp->cArgs-1 - i : &var_empty,
88 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 function_to_string(FunctionInstance *function, BSTR *ret)
261 if(function->value_proc) {
262 FIXME("Builtin functions not implemented\n");
266 str = SysAllocStringLen(function->src_str, function->src_len);
268 return E_OUTOFMEMORY;
274 static HRESULT Function_length(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
275 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
277 FunctionInstance *This = (FunctionInstance*)dispex;
279 TRACE("%p %d\n", This, This->length);
282 case DISPATCH_PROPERTYGET:
284 V_I4(retv) = This->length;
287 FIXME("unimplemented flags %x\n", flags);
294 static HRESULT Function_toString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
295 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
297 FunctionInstance *function;
303 if(!is_class(dispex, JSCLASS_FUNCTION))
304 return throw_type_error(dispex->ctx, ei, IDS_NOT_FUNC, NULL);
306 function = (FunctionInstance*)dispex;
308 hres = function_to_string(function, &str);
313 V_VT(retv) = VT_BSTR;
321 static HRESULT Function_apply(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
322 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
328 static HRESULT Function_call(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
329 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
335 HRESULT Function_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
336 VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
338 FunctionInstance *function;
342 if(dispex->builtin_info->class != JSCLASS_FUNCTION) {
343 ERR("dispex is not a function\n");
347 function = (FunctionInstance*)dispex;
350 case DISPATCH_METHOD:
351 if(function->value_proc)
352 return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
354 return invoke_function(function, lcid, dp, retv, ei, caller);
356 case DISPATCH_PROPERTYGET: {
360 hres = function_to_string(function, &str);
364 V_VT(retv) = VT_BSTR;
369 case DISPATCH_CONSTRUCT:
370 if(function->value_proc)
371 return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
373 return invoke_constructor(function, lcid, dp, retv, ei, caller);
376 FIXME("not implemented flags %x\n", flags);
383 static void Function_destructor(DispatchEx *dispex)
385 FunctionInstance *This = (FunctionInstance*)dispex;
388 parser_release(This->parser);
389 if(This->scope_chain)
390 scope_release(This->scope_chain);
394 static const builtin_prop_t Function_props[] = {
395 {applyW, Function_apply, PROPF_METHOD|2},
396 {callW, Function_call, PROPF_METHOD|1},
397 {lengthW, Function_length, 0},
398 {toStringW, Function_toString, PROPF_METHOD}
401 static const builtin_info_t Function_info = {
403 {NULL, Function_value, 0},
404 sizeof(Function_props)/sizeof(*Function_props),
410 static HRESULT FunctionConstr_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
411 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
417 static HRESULT FunctionProt_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
418 VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
424 static HRESULT create_function(script_ctx_t *ctx, const builtin_info_t *builtin_info, DWORD flags,
425 BOOL funcprot, DispatchEx *prototype, FunctionInstance **ret)
427 FunctionInstance *function;
430 function = heap_alloc_zero(sizeof(FunctionInstance));
432 return E_OUTOFMEMORY;
435 hres = init_dispex(&function->dispex, ctx, &Function_info, prototype);
436 else if(builtin_info)
437 hres = init_dispex_from_constr(&function->dispex, ctx, builtin_info, ctx->function_constr);
439 hres = init_dispex_from_constr(&function->dispex, ctx, &Function_info, ctx->function_constr);
443 function->flags = flags;
444 function->length = flags & PROPF_ARGMASK;
450 static HRESULT set_prototype(script_ctx_t *ctx, DispatchEx *dispex, DispatchEx *prototype)
455 V_VT(&var) = VT_DISPATCH;
456 V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(prototype);
457 memset(&jsexcept, 0, sizeof(jsexcept));
459 return jsdisp_propput_name(dispex, prototypeW, ctx->lcid, &var, &jsexcept, NULL/*FIXME*/);
462 HRESULT create_builtin_function(script_ctx_t *ctx, builtin_invoke_t value_proc,
463 const builtin_info_t *builtin_info, DWORD flags, DispatchEx *prototype, DispatchEx **ret)
465 FunctionInstance *function;
468 hres = create_function(ctx, builtin_info, flags, FALSE, NULL, &function);
472 hres = set_prototype(ctx, &function->dispex, prototype);
474 jsdisp_release(&function->dispex);
478 function->value_proc = value_proc;
480 *ret = &function->dispex;
484 HRESULT create_source_function(parser_ctx_t *ctx, parameter_t *parameters, source_elements_t *source,
485 scope_chain_t *scope_chain, const WCHAR *src_str, DWORD src_len, DispatchEx **ret)
487 FunctionInstance *function;
488 DispatchEx *prototype;
493 hres = create_object(ctx->script, NULL, &prototype);
497 hres = create_function(ctx->script, NULL, PROPF_CONSTR, FALSE, NULL, &function);
498 if(SUCCEEDED(hres)) {
499 hres = set_prototype(ctx->script, &function->dispex, prototype);
501 jsdisp_release(&function->dispex);
503 jsdisp_release(prototype);
507 function->source = source;
508 function->parameters = parameters;
511 scope_addref(scope_chain);
512 function->scope_chain = scope_chain;
516 function->parser = ctx;
518 for(iter = parameters; iter; iter = iter->next)
520 function->length = length;
522 function->src_str = src_str;
523 function->src_len = src_len;
525 *ret = &function->dispex;
529 HRESULT init_function_constr(script_ctx_t *ctx, DispatchEx *object_prototype)
531 FunctionInstance *prot, *constr;
534 hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, object_prototype, &prot);
538 prot->value_proc = FunctionProt_value;
540 hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, &prot->dispex, &constr);
541 if(SUCCEEDED(hres)) {
542 constr->value_proc = FunctionConstr_value;
543 hres = set_prototype(ctx, &constr->dispex, &prot->dispex);
545 jsdisp_release(&constr->dispex);
547 jsdisp_release(&prot->dispex);
551 ctx->function_constr = &constr->dispex;