[reactos] 01/01: [JSCRIPT] import wine commits "stub + implement Enumerator()"

[Andreas Maier]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=83dcae1e0f7f602a2e978…

commit 83dcae1e0f7f602a2e978a5308cc9437d4127855
Author:     Andreas Maier <staubim(a)quantentunnel.de>
AuthorDate: Fri Apr 19 21:00:27 2019 +0200
Commit:     Mark Jansen <mark.jansen(a)reactos.org>
CommitDate: Fri Aug 16 16:37:32 2019 +0200

    [JSCRIPT] import wine commits "stub + implement Enumerator()"
    
   
https://source.winehq.org/git/wine.git/commit/6630bc4096870d1586e6d431b93dd…
   
https://source.winehq.org/git/wine.git/commit/a015c626438dc8cba445242c68d41…
    
    CORE-13810
---
 dll/win32/jscript/CMakeLists.txt |   1 +
 dll/win32/jscript/enumerator.c   | 348 +++++++++++++++++++++++++++++++++++++++
 dll/win32/jscript/global.c       |  17 +-
 dll/win32/jscript/jscript.h      |   4 +
 dll/win32/jscript/object.c       |   2 +-
 dll/win32/jscript/resource.h     |   1 +
 6 files changed, 364 insertions(+), 9 deletions(-)

diff --git a/dll/win32/jscript/CMakeLists.txt b/dll/win32/jscript/CMakeLists.txt
index cb4041f0020..826800bacf9 100644
--- a/dll/win32/jscript/CMakeLists.txt
+++ b/dll/win32/jscript/CMakeLists.txt
@@ -15,6 +15,7 @@ list(APPEND SOURCE
     decode.c
     dispex.c
     engine.c
+    enumerator.c
     error.c
     function.c
     global.c
diff --git a/dll/win32/jscript/enumerator.c b/dll/win32/jscript/enumerator.c
new file mode 100644
index 00000000000..5c06efd1f9b
--- /dev/null
+++ b/dll/win32/jscript/enumerator.c
@@ -0,0 +1,348 @@
+/*
+ * Copyright 2019 Andreas Maier
+ *
+ * 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 "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(jscript);
+
+typedef struct {
+    jsdisp_t dispex;
+    /* IEnumVARIANT returned by _NewEnum */
+    IEnumVARIANT *enumvar;
+    /* current item */
+    jsval_t item;
+    BOOL atend;
+} EnumeratorInstance;
+
+static const WCHAR atEndW[] =
{'a','t','E','n','d',0};
+static const WCHAR itemW[] = {'i','t','e','m',0};
+static const WCHAR moveFirstW[] =
{'m','o','v','e','F','i','r','s','t',0};
+static const WCHAR moveNextW[] =
{'m','o','v','e','N','e','x','t',0};
+
+static inline EnumeratorInstance *enumerator_from_jsdisp(jsdisp_t *jsdisp)
+{
+    return CONTAINING_RECORD(jsdisp, EnumeratorInstance, dispex);
+}
+
+static inline EnumeratorInstance *enumerator_from_vdisp(vdisp_t *vdisp)
+{
+    return enumerator_from_jsdisp(vdisp->u.jsdisp);
+}
+
+static inline EnumeratorInstance *enumerator_this(vdisp_t *jsthis)
+{
+    return is_vclass(jsthis, JSCLASS_ENUMERATOR) ? enumerator_from_vdisp(jsthis) : NULL;
+}
+
+static inline HRESULT enumvar_get_next_item(EnumeratorInstance *This)
+{
+    HRESULT hres;
+    VARIANT nextitem;
+
+    if (This->atend)
+        return S_OK;
+
+    /* dont leak pervious 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(&nextitem, &This->item);
+        VariantClear(&nextitem);
+        if (FAILED(hres))
+        {
+            WARN("failed to convert jsval to variant!");
+            This->item = jsval_undefined();
+            return hres;
+        }
+    }
+    else
+    {
+        This->item = jsval_undefined();
+        This->atend = TRUE;
+    }
+
+    return S_OK;
+}
+
+static void Enumerator_destructor(jsdisp_t *dispex)
+{
+    EnumeratorInstance *This = enumerator_from_jsdisp(dispex);
+
+    TRACE("\n");
+
+    jsval_release(This->item);
+    heap_free(dispex);
+}
+
+static HRESULT Enumerator_atEnd(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned
argc, jsval_t *argv,
+        jsval_t *r)
+{
+    EnumeratorInstance *This;
+
+    if (!(This = enumerator_this(jsthis)))
+        return throw_type_error(ctx, JS_E_ENUMERATOR_EXPECTED, NULL);
+
+    TRACE("%d\n", This->atend);
+
+    if (r)
+        *r = jsval_bool(This->atend);
+    return S_OK;
+}
+
+static HRESULT Enumerator_item(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned
argc, jsval_t *argv,
+        jsval_t *r)
+{
+    EnumeratorInstance *This;
+
+    TRACE("\n");
+
+    if (!(This = enumerator_this(jsthis)))
+        return throw_type_error(ctx, JS_E_ENUMERATOR_EXPECTED, NULL);
+
+    return r ? jsval_copy(This->item, r) : S_OK;
+}
+
+static HRESULT Enumerator_moveFirst(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv,
+        jsval_t *r)
+{
+    EnumeratorInstance *This;
+    HRESULT hres = S_OK;
+
+    TRACE("\n");
+
+    if (!(This = enumerator_this(jsthis)))
+        return throw_type_error(ctx, JS_E_ENUMERATOR_EXPECTED, NULL);
+
+    if (This->enumvar)
+    {
+        hres = IEnumVARIANT_Reset(This->enumvar);
+        if (FAILED(hres))
+            return hres;
+
+        This->atend = FALSE;
+        hres = enumvar_get_next_item(This);
+        if(FAILED(hres))
+            return hres;
+    }
+
+    if (r)
+        *r = jsval_undefined();
+    return S_OK;
+}
+
+static HRESULT Enumerator_moveNext(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv,
+        jsval_t *r)
+{
+    EnumeratorInstance *This;
+    HRESULT hres = S_OK;
+
+    TRACE("\n");
+
+    if (!(This = enumerator_this(jsthis)))
+        return throw_type_error(ctx, JS_E_ENUMERATOR_EXPECTED, NULL);
+
+    if (This->enumvar)
+    {
+        hres = enumvar_get_next_item(This);
+        if (FAILED(hres))
+            return hres;
+    }
+
+    if (r)
+        *r = jsval_undefined();
+    return S_OK;
+}
+
+static const builtin_prop_t Enumerator_props[] = {
+    {atEndW,     Enumerator_atEnd,     PROPF_METHOD},
+    {itemW,      Enumerator_item,      PROPF_METHOD},
+    {moveFirstW, Enumerator_moveFirst, PROPF_METHOD},
+    {moveNextW,  Enumerator_moveNext,  PROPF_METHOD},
+};
+
+static const builtin_info_t Enumerator_info = {
+    JSCLASS_ENUMERATOR,
+    {NULL, NULL, 0},
+    ARRAY_SIZE(Enumerator_props),
+    Enumerator_props,
+    NULL,
+    NULL
+};
+
+static const builtin_info_t EnumeratorInst_info = {
+    JSCLASS_ENUMERATOR,
+    {NULL, NULL, 0, NULL},
+    0,
+    NULL,
+    Enumerator_destructor,
+    NULL
+};
+
+static HRESULT alloc_enumerator(script_ctx_t *ctx, jsdisp_t *object_prototype,
EnumeratorInstance **ret)
+{
+    EnumeratorInstance *enumerator;
+    HRESULT hres;
+
+    enumerator = heap_alloc_zero(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))
+    {
+        heap_free(enumerator);
+        return hres;
+    }
+
+    *ret = enumerator;
+    return S_OK;
+}
+
+static HRESULT create_enumerator(script_ctx_t *ctx, jsval_t *argv, jsdisp_t **ret)
+{
+    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, &dispparams, &varresult, NULL, NULL);
+        if (FAILED(hres))
+        {
+            WARN("Enumerator: no DISPID_NEWENUM.\n");
+            return E_INVALIDARG;
+        }
+
+        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 = E_INVALIDARG;
+        }
+        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);
+    if (FAILED(hres))
+    {
+        jsdisp_release(&enumerator->dispex);
+        return hres;
+    }
+
+    *ret = &enumerator->dispex;
+    return S_OK;
+}
+
+static HRESULT EnumeratorConstr_value(script_ctx_t *ctx, vdisp_t *vthis, WORD flags,
unsigned argc, jsval_t *argv,
+        jsval_t *r)
+{
+    jsdisp_t *obj;
+    HRESULT hres;
+
+    TRACE("\n");
+
+    switch(flags) {
+    case DISPATCH_CONSTRUCT: {
+        if (argc > 1)
+            return throw_syntax_error(ctx, JS_E_INVALIDARG, NULL);
+
+        hres = create_enumerator(ctx, (argc == 1) ? &argv[0] : 0, &obj);
+        if(FAILED(hres))
+            return hres;
+
+        *r = jsval_obj(obj);
+        break;
+    }
+    default:
+        FIXME("unimplemented flags: %x\n", flags);
+        return E_NOTIMPL;
+    }
+
+    return S_OK;
+}
+
+static const builtin_info_t EnumeratorConstr_info = {
+    JSCLASS_FUNCTION,
+    DEFAULT_FUNCTION_VALUE,
+    0,
+    NULL,
+    NULL,
+    NULL
+};
+
+HRESULT create_enumerator_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t
**ret)
+{
+    EnumeratorInstance *enumerator;
+    HRESULT hres;
+    static const WCHAR EnumeratorW[] =
{'E','n','u','m','e','r','a','t','o','r',0};
+
+    hres = alloc_enumerator(ctx, object_prototype, &enumerator);
+    if(FAILED(hres))
+        return hres;
+
+    hres = create_builtin_constructor(ctx, EnumeratorConstr_value,
+                                     EnumeratorW, &EnumeratorConstr_info,
+                                     PROPF_CONSTR|7, &enumerator->dispex, ret);
+    jsdisp_release(&enumerator->dispex);
+
+    return hres;
+}
diff --git a/dll/win32/jscript/global.c b/dll/win32/jscript/global.c
index 33de6414833..92b146c83ac 100644
--- a/dll/win32/jscript/global.c
+++ b/dll/win32/jscript/global.c
@@ -113,13 +113,6 @@ static WCHAR int_to_char(int i)
     return 'A'+i-10;
 }
 
-static HRESULT JSGlobal_Enumerator(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv,
-        jsval_t *r)
-{
-    FIXME("\n");
-    return E_NOTIMPL;
-}
-
 static HRESULT JSGlobal_escape(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned
argc, jsval_t *argv,
         jsval_t *r)
 {
@@ -942,7 +935,6 @@ static HRESULT JSGlobal_decodeURIComponent(script_ctx_t *ctx, vdisp_t
*jsthis, W
 
 static const builtin_prop_t JSGlobal_props[] = {
     {CollectGarbageW,            JSGlobal_CollectGarbage,            PROPF_METHOD},
-    {EnumeratorW,                JSGlobal_Enumerator,                PROPF_METHOD|7},
     {_GetObjectW,                JSGlobal_GetObject,                 PROPF_METHOD|2},
     {ScriptEngineW,              JSGlobal_ScriptEngine,              PROPF_METHOD},
     {ScriptEngineBuildVersionW,  JSGlobal_ScriptEngineBuildVersion,  PROPF_METHOD},
@@ -1019,6 +1011,15 @@ static HRESULT init_constructors(script_ctx_t *ctx, jsdisp_t
*object_prototype)
     if(FAILED(hres))
         return hres;
 
+    hres = create_enumerator_constr(ctx, object_prototype,
&ctx->enumerator_constr);
+    if(FAILED(hres))
+        return hres;
+
+    hres = jsdisp_define_data_property(ctx->global, EnumeratorW, PROPF_WRITABLE,
+                                       jsval_obj(ctx->enumerator_constr));
+    if(FAILED(hres))
+        return hres;
+
     hres = init_error_constr(ctx, object_prototype);
     if(FAILED(hres))
         return hres;
diff --git a/dll/win32/jscript/jscript.h b/dll/win32/jscript/jscript.h
index 475ca4ad5a3..5149d0d4a3f 100644
--- a/dll/win32/jscript/jscript.h
+++ b/dll/win32/jscript/jscript.h
@@ -118,6 +118,7 @@ typedef enum {
     JSCLASS_ARRAY,
     JSCLASS_BOOLEAN,
     JSCLASS_DATE,
+    JSCLASS_ENUMERATOR,
     JSCLASS_ERROR,
     JSCLASS_FUNCTION,
     JSCLASS_GLOBAL,
@@ -438,6 +439,7 @@ struct _script_ctx_t {
     jsdisp_t *array_constr;
     jsdisp_t *bool_constr;
     jsdisp_t *date_constr;
+    jsdisp_t *enumerator_constr;
     jsdisp_t *error_constr;
     jsdisp_t *eval_error_constr;
     jsdisp_t *range_error_constr;
@@ -470,6 +472,7 @@ HRESULT create_array_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**)
DECLSPEC_HIDDEN;
 HRESULT create_bool_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**) DECLSPEC_HIDDEN;
 HRESULT create_date_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**) DECLSPEC_HIDDEN;
 HRESULT init_error_constr(script_ctx_t*,jsdisp_t*) DECLSPEC_HIDDEN;
+HRESULT create_enumerator_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**) DECLSPEC_HIDDEN;
 HRESULT create_number_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**) DECLSPEC_HIDDEN;
 HRESULT create_object_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**) DECLSPEC_HIDDEN;
 HRESULT create_regexp_constr(script_ctx_t*,jsdisp_t*,jsdisp_t**) DECLSPEC_HIDDEN;
@@ -560,6 +563,7 @@ static inline DWORD make_grfdex(script_ctx_t *ctx, DWORD flags)
 #define JS_E_VBARRAY_EXPECTED        MAKE_JSERROR(IDS_NOT_VBARRAY)
 #define JS_E_INVALID_DELETE          MAKE_JSERROR(IDS_INVALID_DELETE)
 #define JS_E_JSCRIPT_EXPECTED        MAKE_JSERROR(IDS_JSCRIPT_EXPECTED)
+#define JS_E_ENUMERATOR_EXPECTED     MAKE_JSERROR(IDS_NOT_ENUMERATOR)
 #define JS_E_REGEXP_SYNTAX           MAKE_JSERROR(IDS_REGEXP_SYNTAX_ERROR)
 #define JS_E_INVALID_URI_CODING      MAKE_JSERROR(IDS_URI_INVALID_CODING)
 #define JS_E_INVALID_URI_CHAR        MAKE_JSERROR(IDS_URI_INVALID_CHAR)
diff --git a/dll/win32/jscript/object.c b/dll/win32/jscript/object.c
index 487eb5f14bd..6ba99db108b 100644
--- a/dll/win32/jscript/object.c
+++ b/dll/win32/jscript/object.c
@@ -66,7 +66,7 @@ static HRESULT Object_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD
flags, u
     static const WCHAR regexpW[] =
{'R','e','g','E','x','p',0};
     static const WCHAR stringW[] =
{'S','t','r','i','n','g',0};
     /* Keep in sync with jsclass_t enum */
-    static const WCHAR *names[] = {NULL, arrayW, booleanW, dateW, errorW,
+    static const WCHAR *names[] = {NULL, arrayW, booleanW, dateW, objectW, errorW,
         functionW, NULL, mathW, numberW, objectW, regexpW, stringW, objectW, objectW,
objectW};
 
     TRACE("\n");
diff --git a/dll/win32/jscript/resource.h b/dll/win32/jscript/resource.h
index dde1b13c59a..de5d40513b4 100644
--- a/dll/win32/jscript/resource.h
+++ b/dll/win32/jscript/resource.h
@@ -58,6 +58,7 @@
 #define IDS_INVALID_DELETE                  0x1394
 #define IDS_NOT_VBARRAY                     0x1395
 #define IDS_JSCRIPT_EXPECTED                0x1396
+#define IDS_NOT_ENUMERATOR                  0x1397
 #define IDS_REGEXP_SYNTAX_ERROR             0x1399
 #define IDS_URI_INVALID_CHAR                0x13A0
 #define IDS_URI_INVALID_CODING              0x13A1