| /* |
| * 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 <assert.h> |
| |
| #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; |
| scope_chain_t *scope_chain; |
| bytecode_t *code; |
| function_code_t *func_code; |
| DWORD length; |
| } FunctionInstance; |
| |
| typedef struct { |
| jsdisp_t jsdisp; |
| FunctionInstance *function; |
| jsval_t *buf; |
| call_frame_t *frame; |
| unsigned argc; |
| } ArgumentsInstance; |
| |
| static inline FunctionInstance *function_from_jsdisp(jsdisp_t *jsdisp) |
| { |
| return CONTAINING_RECORD(jsdisp, FunctionInstance, dispex); |
| } |
| |
| static inline FunctionInstance *function_from_vdisp(vdisp_t *vdisp) |
| { |
| return function_from_jsdisp(vdisp->u.jsdisp); |
| } |
| |
| static inline FunctionInstance *function_this(vdisp_t *jsthis) |
| { |
| return is_vclass(jsthis, JSCLASS_FUNCTION) ? function_from_vdisp(jsthis) : NULL; |
| } |
| |
| static inline ArgumentsInstance *arguments_from_jsdisp(jsdisp_t *jsdisp) |
| { |
| return CONTAINING_RECORD(jsdisp, ArgumentsInstance, jsdisp); |
| } |
| |
| 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 HRESULT Arguments_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, |
| jsval_t *r) |
| { |
| FIXME("\n"); |
| return E_NOTIMPL; |
| } |
| |
| static void Arguments_destructor(jsdisp_t *jsdisp) |
| { |
| ArgumentsInstance *arguments = arguments_from_jsdisp(jsdisp); |
| |
| TRACE("(%p)\n", arguments); |
| |
| if(arguments->buf) { |
| unsigned i; |
| for(i = 0; i < arguments->argc; i++) |
| jsval_release(arguments->buf[i]); |
| heap_free(arguments->buf); |
| } |
| |
| jsdisp_release(&arguments->function->dispex); |
| heap_free(arguments); |
| } |
| |
| static unsigned Arguments_idx_length(jsdisp_t *jsdisp) |
| { |
| ArgumentsInstance *arguments = arguments_from_jsdisp(jsdisp); |
| return arguments->argc; |
| } |
| |
| static jsval_t *get_argument_ref(ArgumentsInstance *arguments, unsigned idx) |
| { |
| if(arguments->buf) |
| return arguments->buf + idx; |
| if(arguments->frame->base_scope->frame || idx >= arguments->frame->function->param_cnt) |
| return arguments->jsdisp.ctx->stack + arguments->frame->arguments_off + idx; |
| return NULL; |
| } |
| |
| static HRESULT Arguments_idx_get(jsdisp_t *jsdisp, unsigned idx, jsval_t *r) |
| { |
| ArgumentsInstance *arguments = arguments_from_jsdisp(jsdisp); |
| jsval_t *ref; |
| |
| TRACE("%p[%u]\n", arguments, idx); |
| |
| if((ref = get_argument_ref(arguments, idx))) |
| return jsval_copy(*ref, r); |
| |
| /* FIXME: Accessing by name won't work for duplicated argument names */ |
| return jsdisp_propget_name(arguments->frame->base_scope->jsobj, arguments->function->func_code->params[idx], r); |
| } |
| |
| static HRESULT Arguments_idx_put(jsdisp_t *jsdisp, unsigned idx, jsval_t val) |
| { |
| ArgumentsInstance *arguments = arguments_from_jsdisp(jsdisp); |
| jsval_t *ref; |
| HRESULT hres; |
| |
| TRACE("%p[%u] = %s\n", arguments, idx, debugstr_jsval(val)); |
| |
| if((ref = get_argument_ref(arguments, idx))) { |
| jsval_t copy; |
| hres = jsval_copy(val, ©); |
| if(FAILED(hres)) |
| return hres; |
| |
| jsval_release(*ref); |
| *ref = copy; |
| return S_OK; |
| } |
| |
| /* FIXME: Accessing by name won't work for duplicated argument names */ |
| return jsdisp_propput_name(arguments->frame->base_scope->jsobj, arguments->function->func_code->params[idx], val); |
| } |
| |
| static const builtin_info_t Arguments_info = { |
| JSCLASS_ARGUMENTS, |
| {NULL, Arguments_value, 0}, |
| 0, NULL, |
| Arguments_destructor, |
| NULL, |
| Arguments_idx_length, |
| Arguments_idx_get, |
| Arguments_idx_put |
| }; |
| |
| HRESULT setup_arguments_object(script_ctx_t *ctx, call_frame_t *frame) |
| { |
| ArgumentsInstance *args; |
| HRESULT hres; |
| |
| static const WCHAR caleeW[] = {'c','a','l','l','e','e',0}; |
| |
| args = heap_alloc_zero(sizeof(*args)); |
| if(!args) |
| return E_OUTOFMEMORY; |
| |
| hres = init_dispex_from_constr(&args->jsdisp, ctx, &Arguments_info, ctx->object_constr); |
| if(FAILED(hres)) { |
| heap_free(args); |
| return hres; |
| } |
| |
| args->function = function_from_jsdisp(jsdisp_addref(frame->function_instance)); |
| args->argc = frame->argc; |
| args->frame = frame; |
| |
| hres = jsdisp_propput_dontenum(&args->jsdisp, lengthW, jsval_number(args->argc)); |
| if(SUCCEEDED(hres)) |
| hres = jsdisp_propput_dontenum(&args->jsdisp, caleeW, jsval_disp(to_disp(&args->function->dispex))); |
| if(SUCCEEDED(hres)) |
| hres = jsdisp_propput(frame->base_scope->jsobj, argumentsW, PROPF_DONTDELETE, jsval_obj(&args->jsdisp)); |
| if(FAILED(hres)) { |
| jsdisp_release(&args->jsdisp); |
| return hres; |
| } |
| |
| frame->arguments_obj = &args->jsdisp; |
| return S_OK; |
| } |
| |
| void detach_arguments_object(jsdisp_t *args_disp) |
| { |
| ArgumentsInstance *arguments = arguments_from_jsdisp(args_disp); |
| call_frame_t *frame = arguments->frame; |
| const BOOL on_stack = frame->base_scope->frame == frame; |
| HRESULT hres; |
| |
| /* Reset arguments value to cut the reference cycle. Note that since all activation contexts have |
| * their own arguments property, it's impossible to use prototype's one during name lookup */ |
| jsdisp_propput_name(frame->base_scope->jsobj, argumentsW, jsval_undefined()); |
| arguments->frame = NULL; |
| |
| /* Don't bother coppying arguments if call frame holds the last reference. */ |
| if(arguments->jsdisp.ref > 1) { |
| arguments->buf = heap_alloc(arguments->argc * sizeof(*arguments->buf)); |
| if(arguments->buf) { |
| int i; |
| |
| for(i = 0; i < arguments->argc ; i++) { |
| if(on_stack || i >= frame->function->param_cnt) |
| hres = jsval_copy(arguments->jsdisp.ctx->stack[frame->arguments_off + i], arguments->buf+i); |
| else |
| hres = jsdisp_propget_name(frame->base_scope->jsobj, frame->function->params[i], arguments->buf+i); |
| if(FAILED(hres)) |
| arguments->buf[i] = jsval_undefined(); |
| } |
| }else { |
| ERR("out of memory\n"); |
| arguments->argc = 0; |
| } |
| } |
| |
| jsdisp_release(frame->arguments_obj); |
| } |
| |
| static HRESULT invoke_source(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_obj, unsigned argc, jsval_t *argv, |
| BOOL is_constructor, BOOL caller_execs_source, jsval_t *r) |
| { |
| jsdisp_t *var_disp; |
| DWORD exec_flags = 0; |
| HRESULT hres; |
| |
| if(ctx->state == SCRIPTSTATE_UNINITIALIZED || ctx->state == SCRIPTSTATE_CLOSED) { |
| WARN("Script engine state does not allow running code.\n"); |
| return E_UNEXPECTED; |
| } |
| |
| if(!function->func_code) { |
| FIXME("no source\n"); |
| return E_FAIL; |
| } |
| |
| hres = create_dispex(ctx, NULL, NULL, &var_disp); |
| if(FAILED(hres)) |
| return hres; |
| |
| if(caller_execs_source) |
| exec_flags |= EXEC_RETURN_TO_INTERP; |
| if(is_constructor) |
| exec_flags |= EXEC_CONSTRUCTOR; |
| hres = exec_source(ctx, exec_flags, function->code, function->func_code, function->scope_chain, this_obj, |
| &function->dispex, var_disp, argc, argv, r); |
| |
| jsdisp_release(var_disp); |
| return hres; |
| } |
| |
| static HRESULT invoke_value_proc(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_disp, WORD flags, |
| unsigned argc, jsval_t *argv, jsval_t *r) |
| { |
| 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, argc, argv, r); |
| |
| vdisp_release(&vthis); |
| return hres; |
| } |
| |
| static HRESULT call_function(script_ctx_t *ctx, FunctionInstance *function, IDispatch *this_obj, |
| unsigned argc, jsval_t *argv, BOOL caller_execs_source, jsval_t *r) |
| { |
| if(function->value_proc) |
| return invoke_value_proc(ctx, function, this_obj, DISPATCH_METHOD, argc, argv, r); |
| |
| return invoke_source(ctx, function, this_obj, argc, argv, FALSE, caller_execs_source, r); |
| } |
| |
| static HRESULT function_to_string(FunctionInstance *function, jsstr_t **ret) |
| { |
| jsstr_t *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; |
| WCHAR *ptr; |
| |
| name_len = strlenW(function->name); |
| str = jsstr_alloc_buf((sizeof(native_prefixW)+sizeof(native_suffixW))/sizeof(WCHAR) + name_len, &ptr); |
| if(!str) |
| return E_OUTOFMEMORY; |
| |
| memcpy(ptr, native_prefixW, sizeof(native_prefixW)); |
| memcpy(ptr += sizeof(native_prefixW)/sizeof(WCHAR), function->name, name_len*sizeof(WCHAR)); |
| memcpy(ptr + name_len, native_suffixW, sizeof(native_suffixW)); |
| }else { |
| str = jsstr_alloc_len(function->func_code->source, function->func_code->source_len); |
| if(!str) |
| return E_OUTOFMEMORY; |
| } |
| |
| *ret = str; |
| return S_OK; |
| } |
| |
| HRESULT Function_invoke(jsdisp_t *func_this, IDispatch *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) |
| { |
| const BOOL caller_execs_source = (flags & DISPATCH_JSCRIPT_CALLEREXECSSOURCE) != 0; |
| FunctionInstance *function; |
| |
| TRACE("func %p this %p\n", func_this, jsthis); |
| |
| assert(is_class(func_this, JSCLASS_FUNCTION)); |
| function = function_from_jsdisp(func_this); |
| |
| flags &= ~DISPATCH_JSCRIPT_INTERNAL_MASK; |
| if(function->value_proc) |
| return invoke_value_proc(function->dispex.ctx, function, jsthis, flags, argc, argv, r); |
| |
| if(flags == DISPATCH_CONSTRUCT) { |
| jsdisp_t *this_obj; |
| HRESULT hres; |
| |
| hres = create_object(function->dispex.ctx, &function->dispex, &this_obj); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = invoke_source(function->dispex.ctx, function, to_disp(this_obj), argc, argv, TRUE, caller_execs_source, r); |
| jsdisp_release(this_obj); |
| return hres; |
| } |
| |
| assert(flags == DISPATCH_METHOD); |
| return invoke_source(function->dispex.ctx, function, jsthis, argc, argv, FALSE, caller_execs_source, r); |
| } |
| |
| static HRESULT Function_get_length(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r) |
| { |
| TRACE("%p\n", jsthis); |
| |
| *r = jsval_number(function_from_jsdisp(jsthis)->length); |
| return S_OK; |
| } |
| |
| static HRESULT Function_set_length(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t value) |
| { |
| FIXME("\n"); |
| return E_NOTIMPL; |
| } |
| |
| static HRESULT Function_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, |
| jsval_t *r) |
| { |
| FunctionInstance *function; |
| jsstr_t *str; |
| HRESULT hres; |
| |
| TRACE("\n"); |
| |
| if(!(function = function_this(jsthis))) |
| return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL); |
| |
| hres = function_to_string(function, &str); |
| if(FAILED(hres)) |
| return hres; |
| |
| if(r) |
| *r = jsval_string(str); |
| else |
| jsstr_release(str); |
| return S_OK; |
| } |
| |
| static HRESULT array_to_args(script_ctx_t *ctx, jsdisp_t *arg_array, unsigned *argc, jsval_t **ret) |
| { |
| jsval_t *argv, val; |
| DWORD length, i; |
| HRESULT hres; |
| |
| hres = jsdisp_propget_name(arg_array, lengthW, &val); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = to_uint32(ctx, val, &length); |
| jsval_release(val); |
| if(FAILED(hres)) |
| return hres; |
| |
| argv = heap_alloc(length * sizeof(*argv)); |
| if(!argv) |
| return E_OUTOFMEMORY; |
| |
| for(i=0; i<length; i++) { |
| hres = jsdisp_get_idx(arg_array, i, argv+i); |
| if(hres == DISP_E_UNKNOWNNAME) { |
| argv[i] = jsval_undefined(); |
| }else if(FAILED(hres)) { |
| while(i--) |
| jsval_release(argv[i]); |
| heap_free(argv); |
| return hres; |
| } |
| } |
| |
| *argc = length; |
| *ret = argv; |
| return S_OK; |
| } |
| |
| static HRESULT Function_apply(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) |
| { |
| FunctionInstance *function; |
| jsval_t *args = NULL; |
| unsigned i, cnt = 0; |
| IDispatch *this_obj = NULL; |
| HRESULT hres = S_OK; |
| |
| TRACE("\n"); |
| |
| if(!(function = function_this(jsthis)) && (jsthis->flags & VDISP_JSDISP)) |
| return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL); |
| |
| if(argc) { |
| if(!is_undefined(argv[0]) && !is_null(argv[0])) { |
| hres = to_object(ctx, argv[0], &this_obj); |
| if(FAILED(hres)) |
| return hres; |
| } |
| } |
| |
| if(argc >= 2) { |
| jsdisp_t *arg_array = NULL; |
| |
| if(is_object_instance(argv[1])) { |
| arg_array = iface_to_jsdisp(get_object(argv[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, &cnt, &args); |
| jsdisp_release(arg_array); |
| }else { |
| FIXME("throw TypeError\n"); |
| hres = E_FAIL; |
| } |
| } |
| |
| if(SUCCEEDED(hres)) { |
| if(function) { |
| hres = call_function(ctx, function, this_obj, cnt, args, (flags & DISPATCH_JSCRIPT_CALLEREXECSSOURCE) != 0, r); |
| }else { |
| jsval_t res; |
| hres = disp_call_value(ctx, jsthis->u.disp, this_obj, DISPATCH_METHOD, cnt, args, &res); |
| if(SUCCEEDED(hres)) { |
| if(r) |
| *r = res; |
| else |
| jsval_release(res); |
| } |
| } |
| } |
| |
| if(this_obj) |
| IDispatch_Release(this_obj); |
| for(i=0; i < cnt; i++) |
| jsval_release(args[i]); |
| heap_free(args); |
| return hres; |
| } |
| |
| static HRESULT Function_call(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, |
| jsval_t *r) |
| { |
| FunctionInstance *function; |
| IDispatch *this_obj = NULL; |
| unsigned cnt = 0; |
| HRESULT hres; |
| |
| TRACE("\n"); |
| |
| if(!(function = function_this(jsthis))) |
| return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL); |
| |
| if(argc) { |
| if(!is_undefined(argv[0]) && !is_null(argv[0])) { |
| hres = to_object(ctx, argv[0], &this_obj); |
| if(FAILED(hres)) |
| return hres; |
| } |
| |
| cnt = argc-1; |
| } |
| |
| hres = call_function(ctx, function, this_obj, cnt, argv+1, (flags & DISPATCH_JSCRIPT_CALLEREXECSSOURCE) != 0, r); |
| |
| if(this_obj) |
| IDispatch_Release(this_obj); |
| return hres; |
| } |
| |
| HRESULT Function_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, |
| jsval_t *r) |
| { |
| FunctionInstance *function; |
| |
| TRACE("\n"); |
| |
| if(!is_vclass(jsthis, JSCLASS_FUNCTION)) { |
| ERR("dispex is not a function\n"); |
| return E_FAIL; |
| } |
| |
| function = function_from_jsdisp(jsthis->u.jsdisp); |
| |
| assert(function->value_proc != NULL); |
| return invoke_value_proc(ctx, function, NULL, flags, argc, argv, r); |
| } |
| |
| HRESULT Function_get_value(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r) |
| { |
| jsstr_t *str; |
| HRESULT hres; |
| |
| TRACE("\n"); |
| |
| hres = function_to_string(function_from_jsdisp(jsthis), &str); |
| if(FAILED(hres)) |
| return hres; |
| |
| *r = jsval_string(str); |
| return S_OK; |
| } |
| |
| static HRESULT Function_get_arguments(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r) |
| { |
| FunctionInstance *function = function_from_jsdisp(jsthis); |
| call_frame_t *frame; |
| HRESULT hres; |
| |
| TRACE("\n"); |
| |
| for(frame = ctx->call_ctx; frame; frame = frame->prev_frame) { |
| if(frame->function_instance == &function->dispex) { |
| if(!frame->arguments_obj) { |
| hres = setup_arguments_object(ctx, frame); |
| if(FAILED(hres)) |
| return hres; |
| } |
| *r = jsval_obj(jsdisp_addref(frame->arguments_obj)); |
| return S_OK; |
| } |
| } |
| |
| *r = jsval_null(); |
| return S_OK; |
| } |
| |
| static void Function_destructor(jsdisp_t *dispex) |
| { |
| FunctionInstance *This = function_from_jsdisp(dispex); |
| |
| if(This->code) |
| release_bytecode(This->code); |
| 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, NULL, 0, Function_get_arguments, builtin_set_const}, |
| {callW, Function_call, PROPF_METHOD|1}, |
| {lengthW, NULL, 0, Function_get_length, Function_set_length}, |
| {toStringW, Function_toString, PROPF_METHOD} |
| }; |
| |
| static const builtin_info_t Function_info = { |
| JSCLASS_FUNCTION, |
| DEFAULT_FUNCTION_VALUE, |
| sizeof(Function_props)/sizeof(*Function_props), |
| Function_props, |
| Function_destructor, |
| NULL |
| }; |
| |
| static const builtin_prop_t FunctionInst_props[] = { |
| {argumentsW, NULL, 0, Function_get_arguments, builtin_set_const}, |
| {lengthW, NULL, 0, Function_get_length, Function_set_length} |
| }; |
| |
| static const builtin_info_t FunctionInst_info = { |
| JSCLASS_FUNCTION, |
| DEFAULT_FUNCTION_VALUE, |
| sizeof(FunctionInst_props)/sizeof(*FunctionInst_props), |
| FunctionInst_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, builtin_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, &FunctionInst_info, ctx->function_constr); |
| if(FAILED(hres)) { |
| heap_free(function); |
| return hres; |
| } |
| |
| function->flags = flags; |
| function->length = flags & PROPF_ARGMASK; |
| |
| *ret = function; |
| return S_OK; |
| } |
| |
| static inline HRESULT set_prototype(script_ctx_t *ctx, jsdisp_t *dispex, jsdisp_t *prototype) |
| { |
| return jsdisp_propput_dontenum(dispex, prototypeW, jsval_obj(prototype)); |
| } |
| |
| 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) |
| hres = jsdisp_propput_const(&function->dispex, lengthW, jsval_number(function->length)); |
| 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; |
| } |
| |
| static HRESULT set_constructor_prop(script_ctx_t *ctx, jsdisp_t *constr, jsdisp_t *prot) |
| { |
| static const WCHAR constructorW[] = {'c','o','n','s','t','r','u','c','t','o','r',0}; |
| |
| return jsdisp_propput_dontenum(prot, constructorW, jsval_obj(constr)); |
| } |
| |
| HRESULT create_builtin_constructor(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) |
| { |
| jsdisp_t *constr; |
| HRESULT hres; |
| |
| hres = create_builtin_function(ctx, value_proc, name, builtin_info, flags, prototype, &constr); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = set_constructor_prop(ctx, constr, prototype); |
| if(FAILED(hres)) { |
| jsdisp_release(constr); |
| return hres; |
| } |
| |
| *ret = constr; |
| return S_OK; |
| } |
| |
| HRESULT create_source_function(script_ctx_t *ctx, bytecode_t *code, function_code_t *func_code, |
| scope_chain_t *scope_chain, jsdisp_t **ret) |
| { |
| FunctionInstance *function; |
| jsdisp_t *prototype; |
| HRESULT hres; |
| |
| hres = create_object(ctx, NULL, &prototype); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = create_function(ctx, NULL, PROPF_CONSTR, FALSE, NULL, &function); |
| if(SUCCEEDED(hres)) { |
| hres = set_prototype(ctx, &function->dispex, prototype); |
| if(SUCCEEDED(hres)) |
| hres = set_constructor_prop(ctx, &function->dispex, prototype); |
| if(FAILED(hres)) |
| jsdisp_release(&function->dispex); |
| } |
| jsdisp_release(prototype); |
| if(FAILED(hres)) |
| return hres; |
| |
| if(scope_chain) { |
| scope_addref(scope_chain); |
| function->scope_chain = scope_chain; |
| } |
| |
| bytecode_addref(code); |
| function->code = code; |
| function->func_code = func_code; |
| function->length = function->func_code->param_cnt; |
| |
| *ret = &function->dispex; |
| return S_OK; |
| } |
| |
| static HRESULT construct_function(script_ctx_t *ctx, unsigned argc, jsval_t *argv, IDispatch **ret) |
| { |
| WCHAR *str = NULL, *ptr; |
| unsigned len = 0, i = 0; |
| bytecode_t *code; |
| jsdisp_t *function; |
| jsstr_t **params = NULL; |
| int 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}; |
| |
| if(argc) { |
| params = heap_alloc(argc*sizeof(*params)); |
| if(!params) |
| return E_OUTOFMEMORY; |
| |
| if(argc > 2) |
| len = (argc-2)*2; /* separating commas */ |
| for(i=0; i < argc; i++) { |
| hres = to_string(ctx, argv[i], params+i); |
| if(FAILED(hres)) |
| break; |
| len += jsstr_length(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) { |
| ptr += jsstr_flush(params[j], ptr); |
| if(++j == argc-1) |
| break; |
| *ptr++ = ','; |
| *ptr++ = ' '; |
| } |
| } |
| memcpy(ptr, function_beginW, sizeof(function_beginW)); |
| ptr += sizeof(function_beginW)/sizeof(WCHAR); |
| if(argc) |
| ptr += jsstr_flush(params[argc-1], ptr); |
| memcpy(ptr, function_endW, sizeof(function_endW)); |
| |
| TRACE("%s\n", debugstr_w(str)); |
| }else { |
| hres = E_OUTOFMEMORY; |
| } |
| } |
| |
| while(i) |
| jsstr_release(params[--i]); |
| heap_free(params); |
| if(FAILED(hres)) |
| return hres; |
| |
| hres = compile_script(ctx, str, NULL, NULL, FALSE, FALSE, &code); |
| heap_free(str); |
| if(FAILED(hres)) |
| return hres; |
| |
| if(code->global_code.func_cnt != 1 || code->global_code.var_cnt != 1) { |
| ERR("Invalid parser result!\n"); |
| release_bytecode(code); |
| return E_UNEXPECTED; |
| } |
| |
| hres = create_source_function(ctx, code, code->global_code.funcs, NULL, &function); |
| release_bytecode(code); |
| 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, unsigned argc, jsval_t *argv, |
| jsval_t *r) |
| { |
| HRESULT hres; |
| |
| TRACE("\n"); |
| |
| switch(flags) { |
| case DISPATCH_METHOD: |
| case DISPATCH_CONSTRUCT: { |
| IDispatch *ret; |
| |
| hres = construct_function(ctx, argc, argv, &ret); |
| if(FAILED(hres)) |
| return hres; |
| |
| *r = jsval_disp(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, unsigned argc, jsval_t *argv, |
| jsval_t *r) |
| { |
| 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, &Function_info, PROPF_CONSTR, TRUE, object_prototype, &prot); |
| if(FAILED(hres)) |
| return hres; |
| |
| prot->value_proc = FunctionProt_value; |
| prot->name = prototypeW; |
| |
| hres = create_function(ctx, &FunctionInst_info, 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(SUCCEEDED(hres)) |
| hres = set_constructor_prop(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; |
| } |
