[3/7] webservices: Add support for union types in the reader.

Hans Leidekker hans at codeweavers.com
Mon Jul 10 04:02:30 CDT 2017


Signed-off-by: Hans Leidekker <hans at codeweavers.com>
---
 dlls/webservices/reader.c       |  76 +++++++++++++++++++++---
 dlls/webservices/tests/reader.c | 128 +++++++++++++++++++++++++++++++++++++++-
 2 files changed, 193 insertions(+), 11 deletions(-)

diff --git a/dlls/webservices/reader.c b/dlls/webservices/reader.c
index 254efb9..c51fb4a 100644
--- a/dlls/webservices/reader.c
+++ b/dlls/webservices/reader.c
@@ -5168,6 +5168,7 @@ static WS_READ_OPTION get_field_read_option( WS_TYPE type, ULONG options )
     case WS_XML_QNAME_TYPE:
     case WS_STRUCT_TYPE:
     case WS_ENUM_TYPE:
+    case WS_UNION_TYPE:
         if (options & (WS_FIELD_OPTIONAL|WS_FIELD_NILLABLE)) return WS_READ_NILLABLE_VALUE;
         return WS_READ_REQUIRED_VALUE;
 
@@ -5261,8 +5262,63 @@ static HRESULT read_type_text( struct reader *reader, const WS_FIELD_DESCRIPTION
                       desc->typeDescription, option, heap, ret, size );
 }
 
-static HRESULT read_type_struct_field( struct reader *reader, const WS_FIELD_DESCRIPTION *desc,
-                                       WS_HEAP *heap, char *buf, ULONG offset )
+static HRESULT read_type_field( struct reader *, const WS_FIELD_DESCRIPTION *, WS_HEAP *, char *, ULONG );
+
+static HRESULT read_type_union( struct reader *reader, const WS_UNION_DESCRIPTION *desc, WS_READ_OPTION option,
+                                WS_HEAP *heap, void *ret, ULONG size )
+{
+    ULONG offset, i;
+    HRESULT hr = WS_E_INVALID_FORMAT;
+
+    switch (option)
+    {
+    case WS_READ_REQUIRED_VALUE:
+    case WS_READ_NILLABLE_VALUE:
+        if (size != desc->size) return E_INVALIDARG;
+        break;
+
+    default:
+        return E_INVALIDARG;
+    }
+
+    if ((hr = read_type_next_node( reader )) != S_OK) return hr;
+    if (node_type( reader->current ) != WS_XML_NODE_TYPE_ELEMENT) return WS_E_INVALID_FORMAT;
+    for (i = 0; i < desc->fieldCount; i++)
+    {
+        if (match_element( reader->current, desc->fields[i]->field.localName, desc->fields[i]->field.ns ))
+            break;
+    }
+    if (i == desc->fieldCount)
+    {
+        if (!move_to_parent_element( &reader->current )) return WS_E_INVALID_FORMAT;
+        *(int *)((char *)ret + desc->enumOffset) = desc->noneEnumValue;
+    }
+    else
+    {
+        offset = desc->fields[i]->field.offset;
+        if ((hr = read_type_field( reader, &desc->fields[i]->field, heap, ret, offset )) == S_OK)
+            *(int *)((char *)ret + desc->enumOffset) = desc->fields[i]->value;
+    }
+
+    switch (option)
+    {
+    case WS_READ_NILLABLE_VALUE:
+        break;
+
+    case WS_READ_REQUIRED_VALUE:
+        if (hr != S_OK) return hr;
+        break;
+
+    default:
+        return E_INVALIDARG;
+    }
+
+    return S_OK;
+}
+
+
+static HRESULT read_type_field( struct reader *reader, const WS_FIELD_DESCRIPTION *desc, WS_HEAP *heap, char *buf,
+                                ULONG offset )
 {
     char *ptr;
     WS_READ_OPTION option;
@@ -5299,6 +5355,12 @@ static HRESULT read_type_struct_field( struct reader *reader, const WS_FIELD_DES
                         desc->typeDescription, option, heap, ptr, size );
         break;
 
+    case WS_ELEMENT_CHOICE_FIELD_MAPPING:
+        if (desc->type != WS_UNION_TYPE || !desc->typeDescription ||
+            (desc->options & (WS_FIELD_POINTER|WS_FIELD_NILLABLE))) return E_INVALIDARG;
+        hr = read_type_union( reader, desc->typeDescription, option, heap, ptr, size );
+        break;
+
     case WS_REPEATING_ELEMENT_FIELD_MAPPING:
     {
         ULONG count;
@@ -5341,9 +5403,8 @@ static HRESULT read_type_struct_field( struct reader *reader, const WS_FIELD_DES
     return hr;
 }
 
-static HRESULT read_type_struct( struct reader *reader, WS_TYPE_MAPPING mapping,
-                                 const WS_XML_STRING *localname, const WS_XML_STRING *ns,
-                                 const WS_STRUCT_DESCRIPTION *desc, WS_READ_OPTION option,
+static HRESULT read_type_struct( struct reader *reader, WS_TYPE_MAPPING mapping, const WS_XML_STRING *localname,
+                                 const WS_XML_STRING *ns, const WS_STRUCT_DESCRIPTION *desc, WS_READ_OPTION option,
                                  WS_HEAP *heap, void *ret, ULONG size )
 {
     ULONG i, offset;
@@ -5380,8 +5441,7 @@ static HRESULT read_type_struct( struct reader *reader, WS_TYPE_MAPPING mapping,
     for (i = 0; i < desc->fieldCount; i++)
     {
         offset = desc->fields[i]->offset;
-        if ((hr = read_type_struct_field( reader, desc->fields[i], heap, buf, offset )) != S_OK)
-            break;
+        if ((hr = read_type_field( reader, desc->fields[i], heap, buf, offset )) != S_OK) break;
     }
 
     switch (option)
@@ -6334,7 +6394,7 @@ static ULONG get_field_size( const WS_FIELD_DESCRIPTION *desc )
 static HRESULT read_param( struct reader *reader, const WS_FIELD_DESCRIPTION *desc, WS_HEAP *heap, void *ret )
 {
     if (!ret && !(ret = ws_alloc_zero( heap, get_field_size(desc) ))) return WS_E_QUOTA_EXCEEDED;
-    return read_type_struct_field( reader, desc, heap, ret, 0 );
+    return read_type_field( reader, desc, heap, ret, 0 );
 }
 
 static HRESULT read_param_array( struct reader *reader, const WS_FIELD_DESCRIPTION *desc, WS_HEAP *heap,
diff --git a/dlls/webservices/tests/reader.c b/dlls/webservices/tests/reader.c
index 5ce37e8..ce8590a 100644
--- a/dlls/webservices/tests/reader.c
+++ b/dlls/webservices/tests/reader.c
@@ -2331,9 +2331,6 @@ static void prepare_struct_type_test( WS_XML_READER *reader, const char *data )
 
     hr = set_input( reader, data, size );
     ok( hr == S_OK, "got %08x\n", hr );
-
-    hr = WsFillReader( reader, size, NULL, NULL );
-    ok( hr == S_OK, "got %08x\n", hr );
 }
 
 static void test_simple_struct_type(void)
@@ -5758,6 +5755,130 @@ static void test_WsReadXmlBuffer(void)
     WsFreeHeap( heap );
 }
 
+static void test_union_type(void)
+{
+    static const WCHAR testW[] = {'t','e','s','t',0};
+    static WS_XML_STRING str_ns = {0, NULL}, str_a = {1, (BYTE *)"a"}, str_b = {1, (BYTE *)"b"};
+    static WS_XML_STRING str_s = {1, (BYTE *)"s"};
+    HRESULT hr;
+    WS_XML_READER *reader;
+    WS_HEAP *heap;
+    WS_UNION_DESCRIPTION u;
+    WS_UNION_FIELD_DESCRIPTION f, f2, *fields[2];
+    WS_FIELD_DESCRIPTION f_struct, *fields_struct[1];
+    WS_STRUCT_DESCRIPTION s;
+    const WS_XML_NODE *node;
+    enum choice {CHOICE_A, CHOICE_B, CHOICE_NONE};
+    struct test
+    {
+        enum choice choice;
+        union
+        {
+            WCHAR  *a;
+            UINT32  b;
+        } value;
+    } *test;
+
+    hr = WsCreateHeap( 1 << 16, 0, NULL, 0, &heap, NULL );
+    ok( hr == S_OK, "got %08x\n", hr );
+
+    hr = WsCreateReader( NULL, 0, &reader, NULL );
+    ok( hr == S_OK, "got %08x\n", hr );
+
+    memset( &f, 0, sizeof(f) );
+    f.value           = CHOICE_A;
+    f.field.mapping   = WS_ELEMENT_FIELD_MAPPING;
+    f.field.localName = &str_a;
+    f.field.ns        = &str_ns;
+    f.field.type      = WS_WSZ_TYPE;
+    f.field.offset    = FIELD_OFFSET(struct test, value.a);
+    fields[0] = &f;
+
+    memset( &f2, 0, sizeof(f2) );
+    f2.value           = CHOICE_B;
+    f2.field.mapping   = WS_ELEMENT_FIELD_MAPPING;
+    f2.field.localName = &str_b;
+    f2.field.ns        = &str_ns;
+    f2.field.type      = WS_UINT32_TYPE;
+    f2.field.offset    = FIELD_OFFSET(struct test, value.b);
+    fields[1] = &f2;
+
+    memset( &u, 0, sizeof(u) );
+    u.size          = sizeof(struct test);
+    u.alignment     = TYPE_ALIGNMENT(struct test);
+    u.fields        = fields;
+    u.fieldCount    = 2;
+    u.enumOffset    = FIELD_OFFSET(struct test, choice);
+    u.noneEnumValue = CHOICE_NONE;
+
+    memset( &f_struct, 0, sizeof(f_struct) );
+    f_struct.mapping         = WS_ELEMENT_CHOICE_FIELD_MAPPING;
+    f_struct.type            = WS_UNION_TYPE;
+    f_struct.typeDescription = &u;
+    fields_struct[0] = &f_struct;
+
+    memset( &s, 0, sizeof(s) );
+    s.size          = sizeof(struct test);
+    s.alignment     = TYPE_ALIGNMENT(struct test);
+    s.fields        = fields_struct;
+    s.fieldCount    = 1;
+    s.typeLocalName = &str_s;
+    s.typeNs        = &str_ns;
+
+    test = NULL;
+    prepare_struct_type_test( reader, "<a>test</a>" );
+    hr = WsReadType( reader, WS_ELEMENT_CONTENT_TYPE_MAPPING, WS_STRUCT_TYPE, &s,
+                     WS_READ_REQUIRED_POINTER, heap, &test, sizeof(test), NULL );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( test != NULL, "test not set\n" );
+    ok( test->choice == CHOICE_A, "got %d\n", test->choice );
+    ok( !lstrcmpW(test->value.a, testW), "got %s\n", wine_dbgstr_w(test->value.a) );
+
+    test = NULL;
+    prepare_struct_type_test( reader, "<b>123</b>" );
+    hr = WsReadType( reader, WS_ELEMENT_CONTENT_TYPE_MAPPING, WS_STRUCT_TYPE, &s,
+                     WS_READ_REQUIRED_POINTER, heap, &test, sizeof(test), NULL );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( test != NULL, "test not set\n" );
+    ok( test->choice == CHOICE_B, "got %d\n", test->choice );
+    ok( test->value.b == 123, "got %u\n", test->value.b );
+
+    prepare_struct_type_test( reader, "<c>456</c>" );
+    hr = WsReadType( reader, WS_ELEMENT_CONTENT_TYPE_MAPPING, WS_STRUCT_TYPE, &s,
+                     WS_READ_REQUIRED_POINTER, heap, &test, sizeof(test), NULL );
+    ok( hr == WS_E_INVALID_FORMAT, "got %08x\n", hr );
+
+    f_struct.options = WS_FIELD_NILLABLE;
+    hr = WsReadType( reader, WS_ELEMENT_CONTENT_TYPE_MAPPING, WS_STRUCT_TYPE, &s,
+                     WS_READ_REQUIRED_POINTER, heap, &test, sizeof(test), NULL );
+    ok( hr == E_INVALIDARG, "got %08x\n", hr );
+
+    f_struct.options = WS_FIELD_POINTER|WS_FIELD_NILLABLE;
+    hr = WsReadType( reader, WS_ELEMENT_CONTENT_TYPE_MAPPING, WS_STRUCT_TYPE, &s,
+                     WS_READ_REQUIRED_POINTER, heap, &test, sizeof(test), NULL );
+    ok( hr == E_INVALIDARG, "got %08x\n", hr );
+
+    f_struct.options = WS_FIELD_POINTER;
+    hr = WsReadType( reader, WS_ELEMENT_CONTENT_TYPE_MAPPING, WS_STRUCT_TYPE, &s,
+                     WS_READ_REQUIRED_POINTER, heap, &test, sizeof(test), NULL );
+    ok( hr == E_INVALIDARG, "got %08x\n", hr );
+
+    test = NULL;
+    f_struct.options = WS_FIELD_OPTIONAL;
+    prepare_struct_type_test( reader, "<c>456</c>" );
+    hr = WsReadType( reader, WS_ELEMENT_CONTENT_TYPE_MAPPING, WS_STRUCT_TYPE, &s,
+                     WS_READ_REQUIRED_POINTER, heap, &test, sizeof(test), NULL );
+    todo_wine ok( hr == S_OK, "got %08x\n", hr );
+    ok( test != NULL, "test not set\n" );
+    ok( test->choice == CHOICE_NONE, "got %d\n", test->choice );
+    hr = WsGetReaderNode( reader, &node, NULL );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( node->nodeType == WS_XML_NODE_TYPE_ELEMENT, "got %u\n", node->nodeType );
+
+    WsFreeReader( reader );
+    WsFreeHeap( heap );
+}
+
 START_TEST(reader)
 {
     test_WsCreateError();
@@ -5803,4 +5924,5 @@ START_TEST(reader)
     test_binary_encoding();
     test_dictionary();
     test_WsReadXmlBuffer();
+    test_union_type();
 }
-- 
2.1.4




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