enumerator.c File Reference

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

Include dependency graph for enumerator.c:

Go to the source code of this file.

Classes
struct	EnumeratorInstance

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (jscript)
static EnumeratorInstance *	enumerator_from_jsdisp (jsdisp_t *jsdisp)
static EnumeratorInstance *	enumerator_this (jsval_t vthis)
static HRESULT	enumvar_get_next_item (EnumeratorInstance *This, script_ctx_t *ctx)
static void	Enumerator_destructor (jsdisp_t *dispex)
static HRESULT	Enumerator_gc_traverse (struct gc_ctx *gc_ctx, enum gc_traverse_op op, jsdisp_t *dispex)
static HRESULT	Enumerator_atEnd (script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	Enumerator_item (script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	Enumerator_moveFirst (script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	Enumerator_moveNext (script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
static HRESULT	alloc_enumerator (script_ctx_t *ctx, jsdisp_t *object_prototype, EnumeratorInstance **ret)
static HRESULT	create_enumerator (script_ctx_t *ctx, jsval_t *argv, jsdisp_t **ret)
static HRESULT	EnumeratorConstr_value (script_ctx_t *ctx, jsval_t vthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
HRESULT	create_enumerator_constr (script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)

Variables
static const builtin_prop_t	Enumerator_props []
static const builtin_info_t	Enumerator_info
static const builtin_info_t	EnumeratorInst_info
static const builtin_info_t	EnumeratorConstr_info

Function Documentation

alloc_enumerator()

static HRESULT alloc_enumerator ( script_ctx_t *  ctx, jsdisp_t *  object_prototype, EnumeratorInstance **  ret  )

static

Definition at line 195 of file enumerator.c.

{
    EnumeratorInstance *enumerator;
    HRESULT hres;
 
    enumerator = calloc(1, sizeof(EnumeratorInstance));
    if(!enumerator)
        return E_OUTOFMEMORY;
 
    if(object_prototype)
        hres = init_dispex(&enumerator->dispex, ctx, &Enumerator_info, object_prototype);
    else
        hres = init_dispex_from_constr(&enumerator->dispex, ctx, &EnumeratorInst_info,
                                       ctx->enumerator_constr);
 
    if(FAILED(hres))
    {
        free(enumerator);
        return hres;
    }
 
    *ret = enumerator;
    return S_OK;
}

Referenced by create_enumerator(), and create_enumerator_constr().

create_enumerator()

static HRESULT create_enumerator ( script_ctx_t *  ctx, jsval_t *  argv, jsdisp_t **  ret  )

static

Definition at line 220 of file enumerator.c.

{
    EnumeratorInstance *enumerator;
    HRESULT hres;
    IDispatch *obj;
    DISPPARAMS dispparams = {NULL, NULL, 0, 0};
    IEnumVARIANT *enumvar = NULL;
 
    if (argv)
    {
        VARIANT varresult;
 
        if (!is_object_instance(*argv))
        {
            FIXME("I don't know how to handle this type!\n");
            return E_NOTIMPL;
        }
 
        obj = get_object(*argv);
 
        /* Try to get a IEnumVARIANT by _NewEnum */
        VariantInit(&varresult);
        hres = IDispatch_Invoke(obj, DISPID_NEWENUM, &IID_NULL, LOCALE_NEUTRAL,
                DISPATCH_METHOD | DISPATCH_PROPERTYGET, &dispparams, &varresult, NULL, NULL);
        if (FAILED(hres))
        {
            WARN("Enumerator: no DISPID_NEWENUM.\n");
            return JS_E_OBJECT_NOT_COLLECTION;
        }
 
        if ((V_VT(&varresult) == VT_DISPATCH) || (V_VT(&varresult) == VT_UNKNOWN))
        {
            hres = IUnknown_QueryInterface(V_UNKNOWN(&varresult),
                &IID_IEnumVARIANT, (void**)&enumvar);
        }
        else
        {
            FIXME("Enumerator: NewEnum unexpected type of varresult (%d).\n", V_VT(&varresult));
            hres = JS_E_OBJECT_NOT_COLLECTION;
        }
        VariantClear(&varresult);
        if (FAILED(hres))
            return hres;
    }
 
    hres = alloc_enumerator(ctx, NULL, &enumerator);
    if (FAILED(hres))
    {
        if (enumvar)
            IEnumVARIANT_Release(enumvar);
        return hres;
    }
 
    enumerator->enumvar = enumvar;
    enumerator->atend = !enumvar;
    hres = enumvar_get_next_item(enumerator, ctx);
    if (FAILED(hres))
    {
        jsdisp_release(&enumerator->dispex);
        return hres;
    }
 
    *ret = &enumerator->dispex;
    return S_OK;
}

Referenced by EnumeratorConstr_value().

create_enumerator_constr()

HRESULT create_enumerator_constr	(	script_ctx_t *	ctx,
		jsdisp_t *	object_prototype,
		jsdisp_t **	ret
	)

Definition at line 320 of file enumerator.c.

{
    EnumeratorInstance *enumerator;
    HRESULT hres;
 
    hres = alloc_enumerator(ctx, object_prototype, &enumerator);
    if(FAILED(hres))
        return hres;
 
    hres = create_builtin_constructor(ctx, EnumeratorConstr_value, L"Enumerator",
            &EnumeratorConstr_info, PROPF_CONSTR|7, &enumerator->dispex, ret);
    jsdisp_release(&enumerator->dispex);
 
    return hres;
}

Referenced by init_constructors().

Enumerator_atEnd()

static HRESULT Enumerator_atEnd ( script_ctx_t *  ctx, jsval_t  vthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 97 of file enumerator.c.

{
    EnumeratorInstance *This;
 
    if (!(This = enumerator_this(vthis)))
        return JS_E_ENUMERATOR_EXPECTED;
 
    TRACE("%d\n", This->atend);
 
    if (r)
        *r = jsval_bool(This->atend);
    return S_OK;
}

Enumerator_destructor()

static void Enumerator_destructor ( jsdisp_t *  dispex )

static

Definition at line 81 of file enumerator.c.

{
    EnumeratorInstance *This = enumerator_from_jsdisp(dispex);
 
    TRACE("\n");
 
    if(This->enumvar)
        IEnumVARIANT_Release(This->enumvar);
    jsval_release(This->item);
}

enumerator_from_jsdisp()

static EnumeratorInstance * enumerator_from_jsdisp ( jsdisp_t *  jsdisp )

inlinestatic

Definition at line 36 of file enumerator.c.

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

Referenced by Enumerator_destructor(), Enumerator_gc_traverse(), and enumerator_this().

Enumerator_gc_traverse()

static HRESULT Enumerator_gc_traverse ( struct gc_ctx *  gc_ctx, enum gc_traverse_op  op, jsdisp_t *  dispex  )

static

Definition at line 92 of file enumerator.c.

{
    return gc_process_linked_val(gc_ctx, op, dispex, &enumerator_from_jsdisp(dispex)->item);
}

Enumerator_item()

static HRESULT Enumerator_item ( script_ctx_t *  ctx, jsval_t  vthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 112 of file enumerator.c.

{
    EnumeratorInstance *This;
 
    TRACE("\n");
 
    if (!(This = enumerator_this(vthis)))
        return JS_E_ENUMERATOR_EXPECTED;
 
    return r ? jsval_copy(This->item, r) : S_OK;
}

Enumerator_moveFirst()

static HRESULT Enumerator_moveFirst ( script_ctx_t *  ctx, jsval_t  vthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 125 of file enumerator.c.

{
    EnumeratorInstance *This;
    HRESULT hres = S_OK;
 
    TRACE("\n");
 
    if (!(This = enumerator_this(vthis)))
        return JS_E_ENUMERATOR_EXPECTED;
 
    if (This->enumvar)
    {
        hres = IEnumVARIANT_Reset(This->enumvar);
        if (FAILED(hres))
            return hres;
 
        This->atend = FALSE;
        hres = enumvar_get_next_item(This, ctx);
        if(FAILED(hres))
            return hres;
    }
 
    if (r)
        *r = jsval_undefined();
    return S_OK;
}

Enumerator_moveNext()

static HRESULT Enumerator_moveNext ( script_ctx_t *  ctx, jsval_t  vthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 153 of file enumerator.c.

{
    EnumeratorInstance *This;
    HRESULT hres = S_OK;
 
    TRACE("\n");
 
    if (!(This = enumerator_this(vthis)))
        return JS_E_ENUMERATOR_EXPECTED;
 
    if (This->enumvar)
    {
        hres = enumvar_get_next_item(This, ctx);
        if (FAILED(hres))
            return hres;
    }
 
    if (r)
        *r = jsval_undefined();
    return S_OK;
}

enumerator_this()

static EnumeratorInstance * enumerator_this ( jsval_t  vthis )

inlinestatic

Definition at line 41 of file enumerator.c.

{
    jsdisp_t *jsdisp = is_object_instance(vthis) ? to_jsdisp(get_object(vthis)) : NULL;
    return (jsdisp && is_class(jsdisp, JSCLASS_ENUMERATOR)) ? enumerator_from_jsdisp(jsdisp) : NULL;
}

Referenced by Enumerator_atEnd(), Enumerator_item(), Enumerator_moveFirst(), and Enumerator_moveNext().

EnumeratorConstr_value()

static HRESULT EnumeratorConstr_value ( script_ctx_t *  ctx, jsval_t  vthis, WORD  flags, unsigned  argc, jsval_t *  argv, jsval_t *  r  )

static

Definition at line 286 of file enumerator.c.

{
    jsdisp_t *obj;
    HRESULT hres;
 
    TRACE("\n");
 
    switch(flags) {
    case DISPATCH_CONSTRUCT: {
        if (argc > 1)
            return JS_E_INVALIDARG;
 
        hres = create_enumerator(ctx, (argc == 1) ? &argv[0] : 0, &obj);
        if(FAILED(hres))
            return hres;
 
        if(r) *r = jsval_obj(obj);
        else  jsdisp_release(obj);
        break;
    }
    default:
        FIXME("unimplemented flags: %x\n", flags);
        return E_NOTIMPL;
    }
 
    return S_OK;
}

Referenced by create_enumerator_constr().

enumvar_get_next_item()

static HRESULT enumvar_get_next_item ( EnumeratorInstance *  This, script_ctx_t *  ctx  )

inlinestatic

Definition at line 47 of file enumerator.c.

{
    HRESULT hres;
    VARIANT nextitem;
 
    if (This->atend)
        return S_OK;
 
    /* don't leak previous value */
    jsval_release(This->item);
 
    /* not at end ... get next item */
    VariantInit(&nextitem);
    hres = IEnumVARIANT_Next(This->enumvar, 1, &nextitem, NULL);
    if (hres == S_OK)
    {
        hres = variant_to_jsval(ctx, &nextitem, &This->item);
        VariantClear(&nextitem);
        if (FAILED(hres))
        {
            WARN("failed to convert jsval to variant!\n");
            This->item = jsval_undefined();
            return hres;
        }
    }
    else
    {
        This->item = jsval_undefined();
        This->atend = TRUE;
    }
 
    return S_OK;
}

Referenced by create_enumerator(), Enumerator_moveFirst(), and Enumerator_moveNext().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

jscript

)

Variable Documentation

Enumerator_info

const builtin_info_t Enumerator_info

static

Initial value:

= {
    .class     = JSCLASS_ENUMERATOR,
    .props_cnt = ARRAY_SIZE(Enumerator_props),
    .props     = Enumerator_props,
}

Definition at line 183 of file enumerator.c.

Referenced by alloc_enumerator().

Enumerator_props

const builtin_prop_t Enumerator_props[]

static

Initial value:

= {
    {L"atEnd",     Enumerator_atEnd,     PROPF_METHOD},
    {L"item",      Enumerator_item,      PROPF_METHOD},
    {L"moveFirst", Enumerator_moveFirst, PROPF_METHOD},
    {L"moveNext",  Enumerator_moveNext,  PROPF_METHOD},
}

Definition at line 176 of file enumerator.c.

EnumeratorConstr_info

const builtin_info_t EnumeratorConstr_info

static

Initial value:

= {
    .class = JSCLASS_FUNCTION,
    .call  = Function_value,
}

Definition at line 315 of file enumerator.c.

Referenced by create_enumerator_constr().

EnumeratorInst_info

const builtin_info_t EnumeratorInst_info

static

Initial value:

= {
    .class       = JSCLASS_ENUMERATOR,
    .destructor  = Enumerator_destructor,
    .gc_traverse = Enumerator_gc_traverse
}

Definition at line 189 of file enumerator.c.

Referenced by alloc_enumerator().