function.c File Reference

#include <assert.h>
#include "jscript.h"
#include "engine.h"
#include "wine/debug.h"

Include dependency graph for function.c:

Go to the source code of this file.

Classes
struct	FunctionInstance
struct	_function_vtbl_t
struct	InterpretedFunction
struct	NativeFunction
struct	BindFunction
struct	ArgumentsInstance

Typedefs
typedef struct _function_vtbl_t	function_vtbl_t

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (jscript)
static HRESULT	create_bind_function (script_ctx_t *, FunctionInstance *, IDispatch *, unsigned, jsval_t *, jsdisp_t **r)
static FunctionInstance *	function_from_jsdisp (jsdisp_t *jsdisp)
static FunctionInstance *	function_from_vdisp (vdisp_t *vdisp)
static FunctionInstance *	function_this (vdisp_t *jsthis)
static ArgumentsInstance *	arguments_from_jsdisp (jsdisp_t *jsdisp)
static HRESULT	Arguments_value (script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static void	Arguments_destructor (jsdisp_t *jsdisp)
static unsigned	Arguments_idx_length (jsdisp_t *jsdisp)
static jsval_t *	get_argument_ref (ArgumentsInstance *arguments, unsigned idx)
static HRESULT	Arguments_idx_get (jsdisp_t *jsdisp, unsigned idx, jsval_t *r)
static HRESULT	Arguments_idx_put (jsdisp_t *jsdisp, unsigned idx, jsval_t val)
HRESULT	setup_arguments_object (script_ctx_t *ctx, call_frame_t *frame)
void	detach_arguments_object (jsdisp_t *args_disp)
HRESULT	Function_invoke (jsdisp_t *func_this, IDispatch *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	Function_get_length (script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
static HRESULT	Function_toString (script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	array_to_args (script_ctx_t *ctx, jsdisp_t *arg_array, unsigned *argc, jsval_t **ret)
static HRESULT	Function_apply (script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	Function_call (script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	Function_bind (script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
HRESULT	Function_value (script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
HRESULT	Function_get_value (script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
static HRESULT	Function_get_arguments (script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
static void	Function_destructor (jsdisp_t *dispex)
static HRESULT	create_function (script_ctx_t *ctx, const builtin_info_t *builtin_info, const function_vtbl_t *vtbl, size_t size, DWORD flags, BOOL funcprot, jsdisp_t *prototype, void **ret)
static HRESULT	NativeFunction_call (script_ctx_t *ctx, FunctionInstance *func, IDispatch *this_disp, unsigned flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	NativeFunction_toString (FunctionInstance *func, jsstr_t **ret)
static void	NativeFunction_destructor (FunctionInstance *function)
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)
static HRESULT	set_constructor_prop (script_ctx_t *ctx, jsdisp_t *constr, jsdisp_t *prot)
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)
static HRESULT	InterpretedFunction_call (script_ctx_t *ctx, FunctionInstance *func, IDispatch *this_obj, unsigned flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	InterpretedFunction_toString (FunctionInstance *func, jsstr_t **ret)
static void	InterpretedFunction_destructor (FunctionInstance *func)
HRESULT	create_source_function (script_ctx_t *ctx, bytecode_t *code, function_code_t *func_code, scope_chain_t *scope_chain, jsdisp_t **ret)
static HRESULT	BindFunction_call (script_ctx_t *ctx, FunctionInstance *func, IDispatch *this_obj, unsigned flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	BindFunction_toString (FunctionInstance *function, jsstr_t **ret)
static void	BindFunction_destructor (FunctionInstance *func)
static HRESULT	construct_function (script_ctx_t *ctx, unsigned argc, jsval_t *argv, IDispatch **ret)
static HRESULT	FunctionConstr_value (script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	FunctionProt_value (script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
HRESULT	init_function_constr (script_ctx_t *ctx, jsdisp_t *object_prototype)

Variables
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	bindW [] = {'b','i','n','d',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 const builtin_info_t	Arguments_info
static const builtin_prop_t	Function_props []
static const builtin_info_t	Function_info
static const builtin_prop_t	FunctionInst_props []
static const builtin_info_t	FunctionInst_info
static const function_vtbl_t	NativeFunctionVtbl
static const function_vtbl_t	InterpretedFunctionVtbl
static const function_vtbl_t	BindFunctionVtbl

Typedef Documentation

function_vtbl_t

typedef struct _function_vtbl_t function_vtbl_t

Definition at line 28 of file function.c.

Function Documentation

Arguments_destructor()

static void Arguments_destructor ( jsdisp_t *  jsdisp )

static

Definition at line 110 of file function.c.

{
    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->function.dispex);
    heap_free(arguments);
}

arguments_from_jsdisp()

static ArgumentsInstance * arguments_from_jsdisp ( jsdisp_t *  jsdisp )

inlinestatic

Definition at line 89 of file function.c.

{
    return CONTAINING_RECORD(jsdisp, ArgumentsInstance, jsdisp);
}

Referenced by Arguments_destructor(), Arguments_idx_get(), Arguments_idx_length(), Arguments_idx_put(), and detach_arguments_object().

Arguments_idx_get()

static HRESULT Arguments_idx_get ( jsdisp_t *  jsdisp, unsigned  idx, jsval_t *  r  )

static

Definition at line 142 of file function.c.

{
    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);
}

Arguments_idx_length()

static unsigned Arguments_idx_length ( jsdisp_t *  jsdisp )

static

Definition at line 127 of file function.c.

{
    ArgumentsInstance *arguments = arguments_from_jsdisp(jsdisp);
    return arguments->argc;
}

Arguments_idx_put()

static HRESULT Arguments_idx_put ( jsdisp_t *  jsdisp, unsigned  idx, jsval_t  val  )

static

Definition at line 157 of file function.c.

{
    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, &copy);
        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);
}

Arguments_value()

static HRESULT Arguments_value ( script_ctx_t *  ctx, vdisp_t *  jsthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 103 of file function.c.

{
    FIXME("\n");
    return E_NOTIMPL;
}

array_to_args()

static HRESULT array_to_args ( script_ctx_t *  ctx, jsdisp_t *  arg_array, unsigned *  argc, jsval_t **  ret  )

static

Definition at line 307 of file function.c.

{
    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;
}

Referenced by Function_apply().

BindFunction_call()

static HRESULT BindFunction_call ( script_ctx_t *  ctx, FunctionInstance *  func, IDispatch *  this_obj, unsigned  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 806 of file function.c.

{
    BindFunction *function = (BindFunction*)func;
    jsval_t *call_args = NULL;
    unsigned call_argc;
    HRESULT hres;
 
    TRACE("%p\n", function);
 
    call_argc = function->argc + argc;
    if(call_argc) {
        call_args = heap_alloc(function->argc * sizeof(*function->args));
        if(!call_args)
            return E_OUTOFMEMORY;
 
        if(function->argc)
            memcpy(call_args, function->args, function->argc * sizeof(*call_args));
        if(argc)
            memcpy(call_args + function->argc, argv, argc * sizeof(*call_args));
    }
 
    hres = function->target->vtbl->call(ctx, function->target, function->this, flags, call_argc, call_args, r);
 
    heap_free(call_args);
    return hres;
}

BindFunction_destructor()

static void BindFunction_destructor ( FunctionInstance *  func )

static

Definition at line 845 of file function.c.

{
    BindFunction *function = (BindFunction*)func;
    unsigned i;
 
    TRACE("%p\n", function);
 
    for(i = 0; i < function->argc; i++)
        jsval_release(function->args[i]);
    jsdisp_release(&function->target->dispex);
    IDispatch_Release(function->this);
}

BindFunction_toString()

static HRESULT BindFunction_toString ( FunctionInstance *  function, jsstr_t **  ret  )

static

Definition at line 834 of file function.c.

{
    static const WCHAR native_functionW[] =
        {'\n','f','u','n','c','t','i','o','n','(',')',' ','{','\n',
         ' ',' ',' ',' ','[','n','a','t','i','v','e',' ','c','o','d','e',']','\n',
         '}','\n',0};
 
    *ret = jsstr_alloc(native_functionW);
    return *ret ? S_OK : E_OUTOFMEMORY;
}

construct_function()

static HRESULT construct_function ( script_ctx_t *  ctx, unsigned  argc, jsval_t *  argv, IDispatch **  ret  )

static

Definition at line 894 of file function.c.

{
    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 += ARRAY_SIZE(function_anonymousW) + ARRAY_SIZE(function_beginW) + ARRAY_SIZE(function_endW);
        str = heap_alloc(len*sizeof(WCHAR));
        if(str) {
            memcpy(str, function_anonymousW, sizeof(function_anonymousW));
            ptr = str + ARRAY_SIZE(function_anonymousW);
            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 += ARRAY_SIZE(function_beginW);
            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;
}

Referenced by FunctionConstr_value().

create_bind_function()

static HRESULT create_bind_function ( script_ctx_t *  ctx, FunctionInstance *  target, IDispatch *  bound_this, unsigned  argc, jsval_t *  argv, jsdisp_t **  r  )

static

Definition at line 864 of file function.c.

{
    BindFunction *function;
    HRESULT hres;
 
    hres = create_function(ctx, NULL, &BindFunctionVtbl, FIELD_OFFSET(BindFunction, args[argc]), PROPF_METHOD,
                           FALSE, NULL, (void**)&function);
    if(FAILED(hres))
        return hres;
 
    jsdisp_addref(&target->dispex);
    function->target = target;
 
    IDispatch_AddRef(function->this = bound_this);
 
    for(function->argc = 0; function->argc < argc; function->argc++) {
        hres = jsval_copy(argv[function->argc], function->args + function->argc);
        if(FAILED(hres)) {
            jsdisp_release(&function->function.dispex);
            return hres;
        }
    }
 
    function->function.length = target->length > argc ? target->length - argc : 0;
 
    *ret = &function->function.dispex;
    return S_OK;
}

Referenced by Function_bind().

create_builtin_constructor()

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
	)

Definition at line 686 of file function.c.

{
    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;
}

Referenced by create_array_constr(), create_bool_constr(), create_date_constr(), create_enumerator_constr(), create_number_constr(), create_object_constr(), create_regexp_constr(), create_string_constr(), create_vbarray_constr(), and init_error_constr().

create_builtin_function()

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
	)

Definition at line 651 of file function.c.

{
    NativeFunction *function;
    HRESULT hres;
 
    hres = create_function(ctx, builtin_info, &NativeFunctionVtbl, sizeof(NativeFunction), flags, FALSE, NULL, (void**)&function);
    if(FAILED(hres))
        return hres;
 
    if(builtin_info)
        hres = jsdisp_define_data_property(&function->function.dispex, lengthW, 0,
                                           jsval_number(function->function.length));
    if(SUCCEEDED(hres))
        hres = jsdisp_define_data_property(&function->function.dispex, prototypeW, 0, jsval_obj(prototype));
    if(FAILED(hres)) {
        jsdisp_release(&function->function.dispex);
        return hres;
    }
 
    function->proc = value_proc;
    function->name = name;
 
    *ret = &function->function.dispex;
    return S_OK;
}

Referenced by create_activex_constr(), create_builtin_constructor(), and prop_get().

create_function()

static HRESULT create_function ( script_ctx_t *  ctx, const builtin_info_t *  builtin_info, const function_vtbl_t *  vtbl, size_t  size, DWORD  flags, BOOL  funcprot, jsdisp_t *  prototype, void **  ret  )

static

Definition at line 566 of file function.c.

{
    FunctionInstance *function;
    HRESULT hres;
 
    function = heap_alloc_zero(size);
    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->vtbl = vtbl;
    function->flags = flags;
    function->length = flags & PROPF_ARGMASK;
 
    *ret = function;
    return S_OK;
}

Referenced by create_bind_function(), create_builtin_function(), create_source_function(), and init_function_constr().

create_source_function()

HRESULT create_source_function	(	script_ctx_t *	ctx,
		bytecode_t *	code,
		function_code_t *	func_code,
		scope_chain_t *	scope_chain,
		jsdisp_t **	ret
	)

Definition at line 767 of file function.c.

{
    InterpretedFunction *function;
    jsdisp_t *prototype;
    HRESULT hres;
 
    hres = create_object(ctx, NULL, &prototype);
    if(FAILED(hres))
        return hres;
 
    hres = create_function(ctx, NULL, &InterpretedFunctionVtbl, sizeof(InterpretedFunction), PROPF_CONSTR,
                           FALSE, NULL, (void**)&function);
    if(SUCCEEDED(hres)) {
        hres = jsdisp_define_data_property(&function->function.dispex, prototypeW, PROPF_WRITABLE,
                                           jsval_obj(prototype));
        if(SUCCEEDED(hres))
            hres = set_constructor_prop(ctx, &function->function.dispex, prototype);
        if(FAILED(hres))
            jsdisp_release(&function->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->function.length = function->func_code->param_cnt;
 
    *ret = &function->function.dispex;
    return S_OK;
}

Referenced by construct_function(), exec_source(), interp_func(), JScriptParseProcedure_ParseProcedureText(), and setup_scope().

detach_arguments_object()

void detach_arguments_object

(

jsdisp_t *

args_disp

)

Definition at line 229 of file function.c.

{
    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);
}

Referenced by pop_call_frame().

Function_apply()

static HRESULT Function_apply ( script_ctx_t *  ctx, vdisp_t *  jsthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 343 of file function.c.

{
    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 = function->vtbl->call(ctx, function, this_obj, flags, cnt, args, 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;
}

Function_bind()

static HRESULT Function_bind ( script_ctx_t *  ctx, vdisp_t *  jsthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 438 of file function.c.

{
    FunctionInstance *function;
    jsdisp_t *new_function;
    HRESULT hres;
 
    TRACE("\n");
 
    if(!(function = function_this(jsthis)))
        return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
 
    if(argc < 1) {
        FIXME("no this argument\n");
        return E_NOTIMPL;
    }
 
    if(!is_object_instance(argv[0]) || !get_object(argv[0])) {
        FIXME("%s is not an object instance\n", debugstr_jsval(argv[0]));
        return E_NOTIMPL;
    }
 
    hres = create_bind_function(ctx, function, get_object(argv[0]), argc - 1, argv + 1, &new_function);
    if(FAILED(hres))
        return hres;
 
    if(r)
        *r = jsval_obj(new_function);
    else
        jsdisp_release(new_function);
    return S_OK;
}

Function_call()

static HRESULT Function_call ( script_ctx_t *  ctx, vdisp_t *  jsthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 408 of file function.c.

{
    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 = function->vtbl->call(ctx, function, this_obj, flags, cnt, argv + 1, r);
 
    if(this_obj)
        IDispatch_Release(this_obj);
    return hres;
}

Function_destructor()

static void Function_destructor ( jsdisp_t *  dispex )

static

Definition at line 527 of file function.c.

{
    FunctionInstance *function = function_from_jsdisp(dispex);
    function->vtbl->destructor(function);
    heap_free(function);
}

function_from_jsdisp()

static FunctionInstance * function_from_jsdisp ( jsdisp_t *  jsdisp )

inlinestatic

Definition at line 74 of file function.c.

{
    return CONTAINING_RECORD(jsdisp, FunctionInstance, dispex);
}

Referenced by Function_destructor(), function_from_vdisp(), Function_get_arguments(), Function_get_length(), Function_get_value(), Function_invoke(), Function_value(), and setup_arguments_object().

function_from_vdisp()

static FunctionInstance * function_from_vdisp ( vdisp_t *  vdisp )

inlinestatic

Definition at line 79 of file function.c.

{
    return function_from_jsdisp(vdisp->u.jsdisp);
}

Referenced by function_this().

Function_get_arguments()

static HRESULT Function_get_arguments ( script_ctx_t *  ctx, jsdisp_t *  jsthis, jsval_t *  r  )

static

Definition at line 503 of file function.c.

{
    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;
}

Function_get_length()

static HRESULT Function_get_length ( script_ctx_t *  ctx, jsdisp_t *  jsthis, jsval_t *  r  )

static

Definition at line 276 of file function.c.

{
    TRACE("%p\n", jsthis);
 
    *r = jsval_number(function_from_jsdisp(jsthis)->length);
    return S_OK;
}

Function_get_value()

HRESULT Function_get_value	(	script_ctx_t *	ctx,
		jsdisp_t *	jsthis,
		jsval_t *	r
	)

Definition at line 487 of file function.c.

{
    FunctionInstance *function = function_from_jsdisp(jsthis);
    jsstr_t *str;
    HRESULT hres;
 
    TRACE("\n");
 
    hres = function->vtbl->toString(function, &str);
    if(FAILED(hres))
        return hres;
 
    *r = jsval_string(str);
    return S_OK;
}

Function_invoke()

HRESULT Function_invoke	(	jsdisp_t *	func_this,
		IDispatch *	jsthis,
		WORD	flags,
		unsigned	argc,
		jsval_t *	argv,
		jsval_t *	r
	)

Definition at line 264 of file function.c.

{
    FunctionInstance *function;
 
    TRACE("func %p this %p\n", func_this, jsthis);
 
    assert(is_class(func_this, JSCLASS_FUNCTION));
    function = function_from_jsdisp(func_this);
 
    return function->vtbl->call(function->dispex.ctx, function, jsthis, flags, argc, argv, r);
}

Referenced by invoke_prop_func(), and jsdisp_call_value().

function_this()

static FunctionInstance * function_this ( vdisp_t *  jsthis )

inlinestatic

Definition at line 84 of file function.c.

{
    return is_vclass(jsthis, JSCLASS_FUNCTION) ? function_from_vdisp(jsthis) : NULL;
}

Referenced by Function_apply(), Function_bind(), Function_call(), and Function_toString().

Function_toString()

static HRESULT Function_toString ( script_ctx_t *  ctx, vdisp_t *  jsthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 284 of file function.c.

{
    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->vtbl->toString(function, &str);
    if(FAILED(hres))
        return hres;
 
    if(r)
        *r = jsval_string(str);
    else
        jsstr_release(str);
    return S_OK;
}

Function_value()

HRESULT Function_value	(	script_ctx_t *	ctx,
		vdisp_t *	jsthis,
		WORD	flags,
		unsigned	argc,
		jsval_t *	argv,
		jsval_t *	r
	)

Definition at line 471 of file function.c.

{
    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);
    return function->vtbl->call(ctx, function, NULL, flags, argc, argv, r);
}

FunctionConstr_value()

static HRESULT FunctionConstr_value ( script_ctx_t *  ctx, vdisp_t *  jsthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 976 of file function.c.

{
    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;
}

Referenced by init_function_constr().

FunctionProt_value()

static HRESULT FunctionProt_value ( script_ctx_t *  ctx, vdisp_t *  jsthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 1003 of file function.c.

{
    FIXME("\n");
    return E_NOTIMPL;
}

Referenced by init_function_constr().

get_argument_ref()

static jsval_t * get_argument_ref ( ArgumentsInstance *  arguments, unsigned  idx  )

static

Definition at line 133 of file function.c.

{
    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;
}

Referenced by Arguments_idx_get(), and Arguments_idx_put().

init_function_constr()

HRESULT init_function_constr	(	script_ctx_t *	ctx,
		jsdisp_t *	object_prototype
	)

Definition at line 1010 of file function.c.

{
    NativeFunction *prot, *constr;
    HRESULT hres;
 
    static const WCHAR FunctionW[] = {'F','u','n','c','t','i','o','n',0};
 
    hres = create_function(ctx, &Function_info, &NativeFunctionVtbl, sizeof(NativeFunction), PROPF_CONSTR,
                           TRUE, object_prototype, (void**)&prot);
    if(FAILED(hres))
        return hres;
 
    prot->proc = FunctionProt_value;
    prot->name = prototypeW;
 
    hres = create_function(ctx, &FunctionInst_info, &NativeFunctionVtbl, sizeof(NativeFunction), PROPF_CONSTR|1,
                           TRUE, &prot->function.dispex, (void**)&constr);
    if(SUCCEEDED(hres)) {
        constr->proc = FunctionConstr_value;
        constr->name = FunctionW;
        hres = jsdisp_define_data_property(&constr->function.dispex, prototypeW, 0, jsval_obj(&prot->function.dispex));
        if(SUCCEEDED(hres))
            hres = set_constructor_prop(ctx, &constr->function.dispex, &prot->function.dispex);
        if(FAILED(hres))
            jsdisp_release(&constr->function.dispex);
    }
    jsdisp_release(&prot->function.dispex);
    if(FAILED(hres))
        return hres;
 
    ctx->function_constr = &constr->function.dispex;
    return S_OK;
}

Referenced by init_constructors().

InterpretedFunction_call()

static HRESULT InterpretedFunction_call ( script_ctx_t *  ctx, FunctionInstance *  func, IDispatch *  this_obj, unsigned  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 706 of file function.c.

{
    InterpretedFunction *function = (InterpretedFunction*)func;
    jsdisp_t *var_disp, *new_obj = NULL;
    DWORD exec_flags = 0;
    HRESULT hres;
 
    TRACE("%p\n", function);
 
    if(ctx->state == SCRIPTSTATE_UNINITIALIZED || ctx->state == SCRIPTSTATE_CLOSED) {
        WARN("Script engine state does not allow running code.\n");
        return E_UNEXPECTED;
    }
 
    if(flags & DISPATCH_CONSTRUCT) {
        hres = create_object(ctx, &function->function.dispex, &new_obj);
        if(FAILED(hres))
            return hres;
        this_obj = to_disp(new_obj);
    }
 
    if(flags & DISPATCH_JSCRIPT_CALLEREXECSSOURCE)
        exec_flags |= EXEC_RETURN_TO_INTERP;
    if(flags & DISPATCH_CONSTRUCT)
        exec_flags |= EXEC_CONSTRUCTOR;
 
    hres = create_dispex(ctx, NULL, NULL, &var_disp);
    if(SUCCEEDED(hres))
        hres = exec_source(ctx, exec_flags, function->code, function->func_code, function->scope_chain, this_obj,
                           &function->function.dispex, var_disp, argc, argv, r);
    if(new_obj)
        jsdisp_release(new_obj);
 
    jsdisp_release(var_disp);
    return hres;
}

InterpretedFunction_destructor()

static void InterpretedFunction_destructor ( FunctionInstance *  func )

static

Definition at line 752 of file function.c.

{
    InterpretedFunction *function = (InterpretedFunction*)func;
 
    release_bytecode(function->code);
    if(function->scope_chain)
        scope_release(function->scope_chain);
}

InterpretedFunction_toString()

static HRESULT InterpretedFunction_toString ( FunctionInstance *  func, jsstr_t **  ret  )

static

Definition at line 744 of file function.c.

{
    InterpretedFunction *function = (InterpretedFunction*)func;
 
    *ret = jsstr_alloc_len(function->func_code->source, function->func_code->source_len);
    return *ret ? S_OK : E_OUTOFMEMORY;
}

NativeFunction_call()

static HRESULT NativeFunction_call ( script_ctx_t *  ctx, FunctionInstance *  func, IDispatch *  this_disp, unsigned  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 595 of file function.c.

{
    NativeFunction *function = (NativeFunction*)func;
    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->proc(ctx, &vthis, flags & ~DISPATCH_JSCRIPT_INTERNAL_MASK, argc, argv, r);
 
    vdisp_release(&vthis);
    return hres;
}

NativeFunction_destructor()

static void NativeFunction_destructor ( FunctionInstance *  function )

static

Definition at line 641 of file function.c.

{
}

NativeFunction_toString()

static HRESULT NativeFunction_toString ( FunctionInstance *  func, jsstr_t **  ret  )

static

Definition at line 615 of file function.c.

{
    NativeFunction *function = (NativeFunction*)func;
    DWORD name_len;
    jsstr_t *str;
    WCHAR *ptr;
 
    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'};
 
    name_len = function->name ? lstrlenW(function->name) : 0;
    str = jsstr_alloc_buf(ARRAY_SIZE(native_prefixW) + ARRAY_SIZE(native_suffixW) + name_len, &ptr);
    if(!str)
        return E_OUTOFMEMORY;
 
    memcpy(ptr, native_prefixW, sizeof(native_prefixW));
    ptr += ARRAY_SIZE(native_prefixW);
    memcpy(ptr, function->name, name_len*sizeof(WCHAR));
    ptr += name_len;
    memcpy(ptr, native_suffixW, sizeof(native_suffixW));
 
    *ret = str;
    return S_OK;
}

set_constructor_prop()

static HRESULT set_constructor_prop ( script_ctx_t *  ctx, jsdisp_t *  constr, jsdisp_t *  prot  )

static

Definition at line 678 of file function.c.

{
    static const WCHAR constructorW[] = {'c','o','n','s','t','r','u','c','t','o','r',0};
 
    return jsdisp_define_data_property(prot, constructorW, PROPF_WRITABLE | PROPF_CONFIGURABLE,
                                       jsval_obj(constr));
}

Referenced by create_builtin_constructor(), create_source_function(), and init_function_constr().

setup_arguments_object()

HRESULT setup_arguments_object	(	script_ctx_t *	ctx,
		call_frame_t *	frame
	)

Definition at line 192 of file function.c.

{
    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 = (InterpretedFunction*)function_from_jsdisp(jsdisp_addref(frame->function_instance));
    args->argc = frame->argc;
    args->frame = frame;
 
    hres = jsdisp_define_data_property(&args->jsdisp, lengthW, PROPF_WRITABLE | PROPF_CONFIGURABLE,
                                       jsval_number(args->argc));
    if(SUCCEEDED(hres))
        hres = jsdisp_define_data_property(&args->jsdisp, caleeW, PROPF_WRITABLE | PROPF_CONFIGURABLE,
                                           jsval_obj(&args->function->function.dispex));
    if(SUCCEEDED(hres))
        hres = jsdisp_propput(frame->base_scope->jsobj, argumentsW, PROPF_WRITABLE, jsval_obj(&args->jsdisp));
    if(FAILED(hres)) {
        jsdisp_release(&args->jsdisp);
        return hres;
    }
 
    frame->arguments_obj = &args->jsdisp;
    return S_OK;
}

Referenced by detach_variable_object(), and Function_get_arguments().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

jscript

)

Variable Documentation

applyW

const WCHAR applyW[] = {'a','p','p','l','y',0}

static

Definition at line 98 of file function.c.

Arguments_info

const builtin_info_t Arguments_info

static

Initial value:

= {
    JSCLASS_ARGUMENTS,
    {NULL, Arguments_value, 0},
    0, NULL,
    Arguments_destructor,
    NULL,
    Arguments_idx_length,
    Arguments_idx_get,
    Arguments_idx_put
}

Definition at line 181 of file function.c.

Referenced by setup_arguments_object().

argumentsW

const WCHAR argumentsW[] = {'a','r','g','u','m','e','n','t','s',0}

static

Definition at line 101 of file function.c.

Referenced by detach_arguments_object(), identifier_eval(), and setup_arguments_object().

BindFunctionVtbl

const function_vtbl_t BindFunctionVtbl

static

Initial value:

= {
    BindFunction_call,
    BindFunction_toString,
    BindFunction_destructor
}

Definition at line 858 of file function.c.

Referenced by create_bind_function().

bindW

const WCHAR bindW[] = {'b','i','n','d',0}

static

Definition at line 99 of file function.c.

callW

const WCHAR callW[] = {'c','a','l','l',0}

static

Definition at line 100 of file function.c.

Function_info

const builtin_info_t Function_info

static

Initial value:

= {
    JSCLASS_FUNCTION,
    DEFAULT_FUNCTION_VALUE,
    ARRAY_SIZE(Function_props),
    Function_props,
    Function_destructor,
    NULL
}

Definition at line 543 of file function.c.

Referenced by init_function_constr().

Function_props

const builtin_prop_t Function_props[]

static

Initial value:

= {
    {applyW,                 Function_apply,                 PROPF_METHOD|2},
    {argumentsW,             NULL, 0,                        Function_get_arguments},
    {bindW,                  Function_bind,                  PROPF_METHOD|PROPF_ES5|1},
    {callW,                  Function_call,                  PROPF_METHOD|1},
    {lengthW,                NULL, 0,                        Function_get_length},
    {toStringW,              Function_toString,              PROPF_METHOD}
}

Definition at line 534 of file function.c.

FunctionInst_info

const builtin_info_t FunctionInst_info

static

Initial value:

= {
    JSCLASS_FUNCTION,
    DEFAULT_FUNCTION_VALUE,
    ARRAY_SIZE(FunctionInst_props),
    FunctionInst_props,
    Function_destructor,
    NULL
}

Definition at line 557 of file function.c.

Referenced by create_function(), and init_function_constr().

FunctionInst_props

const builtin_prop_t FunctionInst_props[]

static

Initial value:

= {
    {argumentsW,             NULL, 0,                        Function_get_arguments},
    {lengthW,                NULL, 0,                        Function_get_length}
}

Definition at line 552 of file function.c.

InterpretedFunctionVtbl

const function_vtbl_t InterpretedFunctionVtbl

static

Initial value:

= {
    InterpretedFunction_call,
    InterpretedFunction_toString,
    InterpretedFunction_destructor
}

Definition at line 761 of file function.c.

Referenced by create_source_function().

lengthW

const WCHAR lengthW[] = {'l','e','n','g','t','h',0}

static

Definition at line 96 of file function.c.

Referenced by array_to_args(), create_builtin_function(), and setup_arguments_object().

NativeFunctionVtbl

const function_vtbl_t NativeFunctionVtbl

static

Initial value:

= {
    NativeFunction_call,
    NativeFunction_toString,
    NativeFunction_destructor
}

Definition at line 645 of file function.c.

Referenced by create_builtin_function(), and init_function_constr().

prototypeW

const WCHAR prototypeW[] = {'p','r','o','t','o','t', 'y', 'p','e',0}

static

Definition at line 94 of file function.c.

Referenced by create_builtin_function(), create_source_function(), init_dispex_from_constr(), init_function_constr(), and interp_instanceof().

toStringW

const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0}

static

Definition at line 97 of file function.c.