Nikolay Sivov : vbscript: Handle index read access to array properties.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: eeecf6f034ff72cb3ba3285227beb70bd9b82a37
URL:    https://gitlab.winehq.org/wine/wine/-/commit/eeecf6f034ff72cb3ba3285227beb70...

Author: Nikolay Sivov 
Date:   Thu Nov 17 10:27:53 2022 +0300

vbscript: Handle index read access to array properties.

Described by Jason Millard.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53867
Signed-off-by: Nikolay Sivov

---

dlls/vbscript/interp.c       |  6 +++---
 dlls/vbscript/tests/lang.vbs | 13 +++++++++++++
 dlls/vbscript/vbdisp.c       | 13 +++++++++++--
 dlls/vbscript/vbscript.h     |  1 +
 4 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/dlls/vbscript/interp.c b/dlls/vbscript/interp.c
index 4cfe9596b0c..77875ee7f44 100644
--- a/dlls/vbscript/interp.c
+++ b/dlls/vbscript/interp.c
@@ -535,7 +535,7 @@ static void vbstack_to_dp(exec_ctx_t *ctx, unsigned arg_cnt, BOOL is_propput, DI
     }
 }

-static HRESULT array_access(exec_ctx_t *ctx, SAFEARRAY *array, DISPPARAMS *dp, VARIANT **ret)
+HRESULT array_access(SAFEARRAY *array, DISPPARAMS *dp, VARIANT **ret)
 {
     unsigned i, argc = arg_cnt(dp);
     LONG *indices;
@@ -611,7 +611,7 @@ static HRESULT variant_call(exec_ctx_t *ctx, VARIANT *v, unsigned arg_cnt, VARIA
         }

vbstack_to_dp(ctx, arg_cnt, FALSE, &dp);
-        hres = array_access(ctx, array, &dp, &v);
+        hres = array_access(array, &dp, &v);
         if(FAILED(hres))
             return hres;

@@ -894,7 +894,7 @@ static HRESULT assign_ident(exec_ctx_t *ctx, BSTR name, WORD flags, DISPPARAMS *
                 return E_FAIL;
             }

-            hres = array_access(ctx, array, dp, &v);
+            hres = array_access(array, dp, &v);
             if(FAILED(hres))
                 return hres;
         }else if(V_VT(v) == (VT_ARRAY|VT_BYREF|VT_VARIANT)) {
diff --git a/dlls/vbscript/tests/lang.vbs b/dlls/vbscript/tests/lang.vbs
index 61258355496..beb7c7e86c9 100644
--- a/dlls/vbscript/tests/lang.vbs
+++ b/dlls/vbscript/tests/lang.vbs
@@ -1004,6 +1004,7 @@ Call ok(getVT(x) = "VT_DISPATCH*", "getVT(x) = " & getVT(x))

Class TestClass
     Public publicProp
+    Public publicArrayProp

Private privateProp

@@ -1058,6 +1059,11 @@ Class TestClass

Public Sub Class_Initialize
         publicProp2 = 2
+        ReDim publicArrayProp(2)
+
+        publicArrayProp(0) = 1
+        publicArrayProp(1) = 2
+
         privateProp = true
         Call ok(getVT(privateProp) = "VT_BOOL*", "getVT(privateProp) = " & getVT(privateProp))
         Call ok(getVT(publicProp2) = "VT_I2*", "getVT(publicProp2) = " & getVT(publicProp2))
@@ -1110,6 +1116,13 @@ Call ok(funcCalled = "GetDefVal", "funcCalled = " & funcCalled)
 Call obj.Class_Initialize
 Call ok(obj.getPrivateProp() = true, "obj.getPrivateProp() = " & obj.getPrivateProp())

+'Accessing array property by index
+Call ok(obj.publicArrayProp(0) = 1, "obj.publicArrayProp(0) = " & obj.publicArrayProp(0))
+Call ok(obj.publicArrayProp(1) = 2, "obj.publicArrayProp(1) = " & obj.publicArrayProp(1))
+x = obj.publicArrayProp(2)
+Call ok(getVT(x) = "VT_EMPTY*", "getVT(x) = " & getVT(x))
+Call ok(obj.publicArrayProp("0") = 1, "obj.publicArrayProp(0) = " & obj.publicArrayProp("0"))
+
 x = (New testclass).publicProp

Class TermTest
diff --git a/dlls/vbscript/vbdisp.c b/dlls/vbscript/vbdisp.c
index 92468d37ef2..e19ed2b53d4 100644
--- a/dlls/vbscript/vbdisp.c
+++ b/dlls/vbscript/vbdisp.c
@@ -122,8 +122,17 @@ static HRESULT invoke_variant_prop(script_ctx_t *ctx, VARIANT *v, WORD flags, DI
     case DISPATCH_PROPERTYGET|DISPATCH_METHOD:
     case DISPATCH_PROPERTYGET:
         if(dp->cArgs) {
-            WARN("called with arguments\n");
-            return DISP_E_MEMBERNOTFOUND; /* That's what tests show */
+            if (!V_ISARRAY(v))
+            {
+                WARN("called with arguments for non-array property\n");
+                return DISP_E_MEMBERNOTFOUND; /* That's what tests show */
+            }
+
+            if (FAILED(hres = array_access(V_ARRAY(v), dp, &v)))
+            {
+                WARN("failed to access array element\n");
+                return hres;
+            }
         }

hres = VariantCopyInd(res, v);
diff --git a/dlls/vbscript/vbscript.h b/dlls/vbscript/vbscript.h
index 2d51c3297f6..3690fc4f0e2 100644
--- a/dlls/vbscript/vbscript.h
+++ b/dlls/vbscript/vbscript.h
@@ -383,6 +383,7 @@ void clear_ei(EXCEPINFO*) DECLSPEC_HIDDEN;
 HRESULT report_script_error(script_ctx_t*,const vbscode_t*,unsigned) DECLSPEC_HIDDEN;
 void detach_global_objects(script_ctx_t*) DECLSPEC_HIDDEN;
 HRESULT get_builtin_id(BuiltinDisp*,const WCHAR*,DISPID*) DECLSPEC_HIDDEN;
+HRESULT array_access(SAFEARRAY *array, DISPPARAMS *dp, VARIANT **ret) DECLSPEC_HIDDEN;

void release_regexp_typelib(void) DECLSPEC_HIDDEN;
 HRESULT get_dispatch_typeinfo(ITypeInfo**) DECLSPEC_HIDDEN;