| /* |
| * 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 "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; |
| source_elements_t *source; |
| parameter_t *parameters; |
| scope_chain_t *scope_chain; |
| parser_ctx_t *parser; |
| const WCHAR *src_str; |
| DWORD src_len; |
| DWORD length; |
| jsdisp_t *arguments; |
| } FunctionInstance; |
| |
| 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 IDispatch *get_this(DISPPARAMS *dp) |
| { |
| DWORD i; |
| |
| for(i=0; i < dp->cNamedArgs; i++) { |
| if(dp->rgdispidNamedArgs[i] == DISPID_THIS) { |
| if(V_VT(dp->rgvarg+i) == VT_DISPATCH) |
| return V_DISPATCH(dp->rgvarg+i); |
| |
| WARN("This is not VT_DISPATCH\n"); |
| return NULL; |
| } |
| } |
| |
| TRACE("no this passed\n"); |
| return NULL; |
| } |
| |
| static HRESULT init_parameters(jsdisp_t *var_disp, FunctionInstance *function, DISPPARAMS *dp, |
| jsexcept_t *ei, IServiceProvider *caller) |
| { |
| parameter_t *param; |
| VARIANT var_empty; |
| DWORD cargs, i=0; |
| HRESULT hres; |
| |
| V_VT(&var_empty) = VT_EMPTY; |
| cargs = arg_cnt(dp); |
| |
| for(param = function->parameters; param; param = param->next) { |
| hres = jsdisp_propput_name(var_disp, param->identifier, |
| i < cargs ? get_arg(dp,i) : &var_empty, ei, caller); |
| if(FAILED(hres)) |
| return hres; |
| |
| i++; |
| } |
| |
| return S_OK; |
| } |
| |
| static HRESULT Arguments_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller) |
| { |
| FIXME("\n"); |
| return E_NOTIMPL; |
| } |
| |
| static const builtin_info_t Arguments_info = { |
| JSCLASS_ARGUMENTS, |
| {NULL, Arguments_value, 0}, |
| 0, NULL, |
| NULL, |
| NULL |
| }; |
| |
| static HRESULT create_arguments(script_ctx_t *ctx, IDispatch *calee, DISPPARAMS *dp, |
| jsexcept_t *ei, IServiceProvider *caller, jsdisp_t **ret) |
| { |
| jsdisp_t *args; |
| VARIANT var; |
| DWORD i; |
| HRESULT hres; |
| |
| static const WCHAR caleeW[] = {'c','a','l','l','e','e',0}; |
| |
| args = heap_alloc_zero(sizeof(jsdisp_t)); |
| if(!args) |
| return E_OUTOFMEMORY; |
| |
| hres = init_dispex_from_constr(args, ctx, &Arguments_info, ctx->object_constr); |
| if(FAILED(hres)) { |
| heap_free(args); |
| return hres; |
| } |
| |
| for(i=0; i < arg_cnt(dp); i++) { |
| hres = jsdisp_propput_idx(args, i, get_arg(dp,i), ei, caller); |
| if(FAILED(hres)) |
| break; |
| } |
| |
| if(SUCCEEDED(hres)) { |
| V_VT(&var) = VT_I4; |
| V_I4(&var) = arg_cnt(dp); |
| hres = jsdisp_propput_name(args, lengthW, &var, ei, caller); |
| |
| if(SUCCEEDED(hres)) { |
| V_VT(&var) = VT_DISPATCH; |
| V_DISPATCH(&var) = calee; |
| hres = jsdisp_propput_name(args, caleeW, &var, ei, caller); |
| } |
| } |
| |
| if(FAILED(hres)) { |
| jsdisp_release(args); |
| return hres; |
| } |
| |
| *ret = args; |
| return S_OK; |
| } |
| |
| static HRESULT create_var_disp(script_ctx_t *ctx, FunctionInstance *function, jsdisp_t *arg_disp, |
| DISPPARAMS *dp, jsexcept_t *ei, IServiceProvider *caller, jsdisp_t **ret) |
| { |
| jsdisp_t *var_disp; |
| VARIANT var; |
| HRESULT hres; |
| |
| hres = create_dispex(ctx, NULL, NULL, &var_disp); |
| if(FAILED(hres)) |
| return hres; |
| |
| var_set_jsdisp(&var, arg_disp); |
| hres = jsdisp_propput_name(var_disp, argumentsW, &var, ei, caller); |
| if(SUCCEEDED(hres)) |
| hres = init_parameters(var_disp, function, dp, ei, caller); |
| 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, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller) |
| { |
| jsdisp_t *var_disp, *arg_disp; |
| exec_ctx_t *exec_ctx; |
| scope_chain_t *scope; |
| HRESULT hres; |
| |
| if(!function->source) { |
| FIXME("no source\n"); |
| return E_FAIL; |
| } |
| |
| hres = create_arguments(ctx, to_disp(&function->dispex), |
| dp, ei, caller, &arg_disp); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = create_var_disp(ctx, function, arg_disp, dp, ei, caller, &var_disp); |
| if(FAILED(hres)) { |
| jsdisp_release(arg_disp); |
| return hres; |
| } |
| |
| hres = scope_push(function->scope_chain, var_disp, &scope); |
| if(SUCCEEDED(hres)) { |
| hres = create_exec_ctx(ctx, this_obj, var_disp, scope, FALSE, &exec_ctx); |
| scope_release(scope); |
| } |
| jsdisp_release(var_disp); |
| if(SUCCEEDED(hres)) { |
| jsdisp_t *prev_args; |
| |
| prev_args = function->arguments; |
| function->arguments = arg_disp; |
| hres = exec_source(exec_ctx, function->parser, function->source, FALSE, ei, retv); |
| function->arguments = prev_args; |
| |
| jsdisp_release(arg_disp); |
| exec_release(exec_ctx); |
| } |
| |
| return hres; |
| } |
| |
| static HRESULT invoke_constructor(script_ctx_t *ctx, FunctionInstance *function, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller) |
| { |
| jsdisp_t *this_obj; |
| VARIANT 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), dp, &var, ei, caller); |
| if(FAILED(hres)) { |
| jsdisp_release(this_obj); |
| return hres; |
| } |
| |
| if(V_VT(&var) == VT_DISPATCH) { |
| jsdisp_release(this_obj); |
| V_VT(retv) = VT_DISPATCH; |
| V_DISPATCH(retv) = V_DISPATCH(&var); |
| }else { |
| VariantClear(&var); |
| var_set_jsdisp(retv, this_obj); |
| } |
| return S_OK; |
| } |
| |
| static HRESULT invoke_value_proc(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_disp, WORD flags, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller) |
| { |
| 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, dp, retv, ei, caller); |
| |
| vdisp_release(&vthis); |
| return hres; |
| } |
| |
| static HRESULT call_function(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_obj, DISPPARAMS *args, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller) |
| { |
| if(function->value_proc) |
| return invoke_value_proc(ctx, function, this_obj, DISPATCH_METHOD, args, retv, ei, caller); |
| |
| return invoke_source(ctx, function, this_obj, args, retv, ei, caller); |
| } |
| |
| static HRESULT function_to_string(FunctionInstance *function, BSTR *ret) |
| { |
| BSTR 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; |
| |
| name_len = strlenW(function->name); |
| str = SysAllocStringLen(NULL, sizeof(native_prefixW) + name_len*sizeof(WCHAR) + sizeof(native_suffixW)); |
| if(!str) |
| return E_OUTOFMEMORY; |
| |
| memcpy(str, native_prefixW, sizeof(native_prefixW)); |
| memcpy(str + sizeof(native_prefixW)/sizeof(WCHAR), function->name, name_len*sizeof(WCHAR)); |
| memcpy(str + sizeof(native_prefixW)/sizeof(WCHAR) + name_len, native_suffixW, sizeof(native_suffixW)); |
| }else { |
| str = SysAllocStringLen(function->src_str, function->src_len); |
| if(!str) |
| return E_OUTOFMEMORY; |
| } |
| |
| *ret = str; |
| return S_OK; |
| } |
| |
| static HRESULT Function_length(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) |
| { |
| FunctionInstance *This = function_from_vdisp(jsthis); |
| |
| TRACE("%p %d\n", This, This->length); |
| |
| switch(flags) { |
| case DISPATCH_PROPERTYGET: |
| V_VT(retv) = VT_I4; |
| V_I4(retv) = 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, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) |
| { |
| FunctionInstance *function; |
| BSTR str; |
| HRESULT hres; |
| |
| TRACE("\n"); |
| |
| if(!(function = function_this(jsthis))) |
| return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL); |
| |
| hres = function_to_string(function, &str); |
| if(FAILED(hres)) |
| return hres; |
| |
| if(retv) { |
| V_VT(retv) = VT_BSTR; |
| V_BSTR(retv) = str; |
| }else { |
| SysFreeString(str); |
| } |
| return S_OK; |
| } |
| |
| static HRESULT array_to_args(script_ctx_t *ctx, jsdisp_t *arg_array, jsexcept_t *ei, IServiceProvider *caller, |
| DISPPARAMS *args) |
| { |
| VARIANT var, *argv; |
| DWORD length, i; |
| HRESULT hres; |
| |
| hres = jsdisp_propget_name(arg_array, lengthW, &var, ei, NULL/*FIXME*/); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = to_uint32(ctx, &var, ei, &length); |
| VariantClear(&var); |
| if(FAILED(hres)) |
| return hres; |
| |
| argv = heap_alloc(length * sizeof(VARIANT)); |
| if(!argv) |
| return E_OUTOFMEMORY; |
| |
| for(i=0; i<length; i++) { |
| hres = jsdisp_get_idx(arg_array, i, argv+i, ei, caller); |
| if(hres == DISP_E_UNKNOWNNAME) |
| V_VT(argv+i) = VT_EMPTY; |
| else if(FAILED(hres)) { |
| while(i--) |
| VariantClear(argv+i); |
| heap_free(argv); |
| return hres; |
| } |
| } |
| |
| args->cArgs = length; |
| args->rgvarg = argv; |
| return S_OK; |
| } |
| |
| static HRESULT Function_apply(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller) |
| { |
| FunctionInstance *function; |
| DISPPARAMS args = {NULL,NULL,0,0}; |
| DWORD argc, i; |
| IDispatch *this_obj = NULL; |
| HRESULT hres = S_OK; |
| |
| TRACE("\n"); |
| |
| if(!(function = function_this(jsthis))) |
| return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL); |
| |
| argc = arg_cnt(dp); |
| if(argc) { |
| VARIANT *v = get_arg(dp,0); |
| |
| if(V_VT(v) != VT_EMPTY && V_VT(v) != VT_NULL) { |
| hres = to_object(ctx, v, &this_obj); |
| if(FAILED(hres)) |
| return hres; |
| } |
| } |
| |
| if(argc >= 2) { |
| jsdisp_t *arg_array = NULL; |
| |
| if(V_VT(get_arg(dp,1)) == VT_DISPATCH) { |
| arg_array = iface_to_jsdisp((IUnknown*)V_DISPATCH(get_arg(dp,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, ei, caller, &args); |
| jsdisp_release(arg_array); |
| }else { |
| FIXME("throw TypeError\n"); |
| hres = E_FAIL; |
| } |
| } |
| |
| if(SUCCEEDED(hres)) |
| hres = call_function(ctx, function, this_obj, &args, retv, ei, caller); |
| |
| if(this_obj) |
| IDispatch_Release(this_obj); |
| for(i=0; i<args.cArgs; i++) |
| VariantClear(args.rgvarg+i); |
| heap_free(args.rgvarg); |
| return hres; |
| } |
| |
| static HRESULT Function_call(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller) |
| { |
| FunctionInstance *function; |
| DISPPARAMS args = {NULL,NULL,0,0}; |
| IDispatch *this_obj = NULL; |
| DWORD argc; |
| HRESULT hres; |
| |
| TRACE("\n"); |
| |
| if(!(function = function_this(jsthis))) |
| return throw_type_error(ctx, ei, JS_E_FUNCTION_EXPECTED, NULL); |
| |
| argc = arg_cnt(dp); |
| if(argc) { |
| VARIANT *v = get_arg(dp,0); |
| |
| if(V_VT(v) != VT_EMPTY && V_VT(v) != VT_NULL) { |
| hres = to_object(ctx, v, &this_obj); |
| if(FAILED(hres)) |
| return hres; |
| } |
| |
| args.cArgs = argc-1; |
| } |
| |
| if(args.cArgs) |
| args.rgvarg = dp->rgvarg + dp->cArgs - args.cArgs-1; |
| |
| hres = call_function(ctx, function, this_obj, &args, retv, ei, caller); |
| |
| if(this_obj) |
| IDispatch_Release(this_obj); |
| return hres; |
| } |
| |
| HRESULT Function_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller) |
| { |
| 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: |
| if(function->value_proc) |
| return invoke_value_proc(ctx, function, get_this(dp), flags, dp, retv, ei, caller); |
| |
| return invoke_source(ctx, function, get_this(dp), dp, retv, ei, caller); |
| |
| case DISPATCH_PROPERTYGET: { |
| HRESULT hres; |
| BSTR str; |
| |
| hres = function_to_string(function, &str); |
| if(FAILED(hres)) |
| return hres; |
| |
| V_VT(retv) = VT_BSTR; |
| V_BSTR(retv) = str; |
| break; |
| } |
| |
| case DISPATCH_CONSTRUCT: |
| if(function->value_proc) |
| return invoke_value_proc(ctx, function, get_this(dp), flags, dp, retv, ei, caller); |
| |
| return invoke_constructor(ctx, function, dp, retv, ei, caller); |
| |
| 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, |
| DISPPARAMS *dp, VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) |
| { |
| FunctionInstance *function = (FunctionInstance*)jsthis->u.jsdisp; |
| HRESULT hres = S_OK; |
| |
| TRACE("\n"); |
| |
| switch(flags) { |
| case DISPATCH_PROPERTYGET: { |
| if(function->arguments) { |
| jsdisp_addref(function->arguments); |
| var_set_jsdisp(retv, function->arguments); |
| }else { |
| V_VT(retv) = VT_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->parser) |
| parser_release(This->parser); |
| 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 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, &Function_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, &Function_info, ctx->function_constr); |
| if(FAILED(hres)) |
| return hres; |
| |
| function->flags = flags; |
| function->length = flags & PROPF_ARGMASK; |
| |
| *ret = function; |
| return S_OK; |
| } |
| |
| static HRESULT set_prototype(script_ctx_t *ctx, jsdisp_t *dispex, jsdisp_t *prototype) |
| { |
| jsexcept_t jsexcept; |
| VARIANT var; |
| |
| var_set_jsdisp(&var, prototype); |
| memset(&jsexcept, 0, sizeof(jsexcept)); |
| |
| return jsdisp_propput_name(dispex, prototypeW, &var, &jsexcept, NULL/*FIXME*/); |
| } |
| |
| 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) { |
| VARIANT var; |
| |
| V_VT(&var) = VT_I4; |
| V_I4(&var) = function->length; |
| hres = jsdisp_propput_const(&function->dispex, lengthW, &var); |
| } |
| |
| 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; |
| } |
| |
| HRESULT create_source_function(parser_ctx_t *ctx, parameter_t *parameters, source_elements_t *source, |
| scope_chain_t *scope_chain, const WCHAR *src_str, DWORD src_len, jsdisp_t **ret) |
| { |
| FunctionInstance *function; |
| jsdisp_t *prototype; |
| parameter_t *iter; |
| DWORD length = 0; |
| HRESULT hres; |
| |
| hres = create_object(ctx->script, NULL, &prototype); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = create_function(ctx->script, NULL, PROPF_CONSTR, FALSE, NULL, &function); |
| if(SUCCEEDED(hres)) { |
| hres = set_prototype(ctx->script, &function->dispex, prototype); |
| if(FAILED(hres)) |
| jsdisp_release(&function->dispex); |
| } |
| jsdisp_release(prototype); |
| if(FAILED(hres)) |
| return hres; |
| |
| function->source = source; |
| function->parameters = parameters; |
| |
| if(scope_chain) { |
| scope_addref(scope_chain); |
| function->scope_chain = scope_chain; |
| } |
| |
| parser_addref(ctx); |
| function->parser = ctx; |
| |
| for(iter = parameters; iter; iter = iter->next) |
| length++; |
| function->length = length; |
| |
| function->src_str = src_str; |
| function->src_len = src_len; |
| |
| *ret = &function->dispex; |
| return S_OK; |
| } |
| |
| static HRESULT construct_function(script_ctx_t *ctx, DISPPARAMS *dp, jsexcept_t *ei, IDispatch **ret) |
| { |
| function_expression_t *expr; |
| WCHAR *str = NULL, *ptr; |
| DWORD argc, len = 0, l; |
| parser_ctx_t *parser; |
| jsdisp_t *function; |
| BSTR *params = NULL; |
| int i=0, 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}; |
| |
| argc = arg_cnt(dp); |
| if(argc) { |
| params = heap_alloc(argc*sizeof(BSTR)); |
| if(!params) |
| return E_OUTOFMEMORY; |
| |
| if(argc > 2) |
| len = (argc-2)*2; /* separating commas */ |
| for(i=0; i < argc; i++) { |
| hres = to_string(ctx, get_arg(dp,i), ei, params+i); |
| if(FAILED(hres)) |
| break; |
| len += SysStringLen(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) { |
| l = SysStringLen(params[j]); |
| memcpy(ptr, params[j], l*sizeof(WCHAR)); |
| ptr += l; |
| if(++j == argc-1) |
| break; |
| *ptr++ = ','; |
| *ptr++ = ' '; |
| } |
| } |
| memcpy(ptr, function_beginW, sizeof(function_beginW)); |
| ptr += sizeof(function_beginW)/sizeof(WCHAR); |
| if(argc) { |
| l = SysStringLen(params[argc-1]); |
| memcpy(ptr, params[argc-1], l*sizeof(WCHAR)); |
| ptr += l; |
| } |
| memcpy(ptr, function_endW, sizeof(function_endW)); |
| |
| TRACE("%s\n", debugstr_w(str)); |
| }else { |
| hres = E_OUTOFMEMORY; |
| } |
| } |
| |
| while(--i >= 0) |
| SysFreeString(params[i]); |
| heap_free(params); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = script_parse(ctx, str, NULL, &parser); |
| heap_free(str); |
| if(FAILED(hres)) |
| return hres; |
| |
| if(!parser->source || !parser->source->functions || parser->source->functions->next || parser->source->variables) { |
| ERR("Invalid parser result!\n"); |
| parser_release(parser); |
| return E_UNEXPECTED; |
| } |
| expr = parser->source->functions->expr; |
| |
| hres = create_source_function(parser, expr->parameter_list, expr->source_elements, NULL, expr->src_str, |
| expr->src_len, &function); |
| parser_release(parser); |
| 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, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) |
| { |
| HRESULT hres; |
| |
| TRACE("\n"); |
| |
| switch(flags) { |
| case DISPATCH_CONSTRUCT: { |
| IDispatch *ret; |
| |
| hres = construct_function(ctx, dp, ei, &ret); |
| if(FAILED(hres)) |
| return hres; |
| |
| V_VT(retv) = VT_DISPATCH; |
| V_DISPATCH(retv) = 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, DISPPARAMS *dp, |
| VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp) |
| { |
| 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, NULL, PROPF_CONSTR, TRUE, object_prototype, &prot); |
| if(FAILED(hres)) |
| return hres; |
| |
| prot->value_proc = FunctionProt_value; |
| prot->name = prototypeW; |
| |
| hres = create_function(ctx, NULL, 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(FAILED(hres)) |
| jsdisp_release(&constr->dispex); |
| } |
| jsdisp_release(&prot->dispex); |
| if(FAILED(hres)) |
| return hres; |
| |
| ctx->function_constr = &constr->dispex; |
| return S_OK; |
| } |
