jscript: Use separated jsexcept_t instance for each external call.

dlls/jscript/dispex.c

@@ -1512,6 +1512,7 @@ static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lc
 {
     jsdisp_t *This = impl_from_IDispatchEx(iface);
     dispex_prop_t *prop;
+    jsexcept_t ei;
     HRESULT hres;
 
     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
@@ -1525,7 +1526,7 @@ static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lc
         return DISP_E_MEMBERNOTFOUND;
     }
 
-    clear_ei(This->ctx);
+    enter_script(This->ctx, &ei);
 
     switch(wFlags) {
     case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
@@ -1538,7 +1539,7 @@ static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lc
 
         hres = convert_params(pdp, buf, &argc, &argv);
         if(FAILED(hres))
-            return hres;
+            break;
 
         hres = invoke_prop_func(This, get_this(pdp), prop, wFlags, argc, argv, pvarRes ? &r : NULL, pspCaller);
         if(argv != buf)
@@ -1570,12 +1571,13 @@ static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lc
 
         if(i == pdp->cNamedArgs) {
             TRACE("no value to set\n");
-            return DISP_E_PARAMNOTOPTIONAL;
+            hres = DISP_E_PARAMNOTOPTIONAL;
+            break;
         }
 
         hres = variant_to_jsval(pdp->rgvarg+i, &val);
         if(FAILED(hres))
-            return hres;
+            break;
 
         hres = prop_put(This, prop, val);
         jsval_release(val);
@@ -1583,12 +1585,11 @@ static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lc
     }
     default:
         FIXME("Unimplemented flags %x\n", wFlags);
-        return E_INVALIDARG;
+        hres = E_INVALIDARG;
+        break;
     }
 
-    if(pei)
-        *pei = This->ctx->ei.ei;
-    return hres;
+    return leave_script(This->ctx, hres);
 }
 
 static HRESULT delete_prop(dispex_prop_t *prop, BOOL *ret)

dlls/jscript/engine.c

@@ -418,13 +418,6 @@ static void scope_pop(scope_chain_t **scope)
     scope_release(tmp);
 }
 
-void clear_ei(script_ctx_t *ctx)
-{
-    memset(&ctx->ei.ei, 0, sizeof(ctx->ei.ei));
-    jsval_release(ctx->ei.val);
-    ctx->ei.val = jsval_undefined();
-}
-
 void scope_release(scope_chain_t *scope)
 {
     if(--scope->ref)
@@ -867,8 +860,8 @@ static HRESULT interp_throw(script_ctx_t *ctx)
 {
     TRACE("\n");
 
-    jsval_release(ctx->ei.val);
-    ctx->ei.val = stack_pop(ctx);
+    jsval_release(ctx->ei->value);
+    ctx->ei->value = stack_pop(ctx);
     return DISP_E_EXCEPTION;
 }
 
@@ -964,7 +957,7 @@ static HRESULT interp_end_finally(script_ctx_t *ctx)
     if(!get_bool(v)) {
         TRACE("passing exception\n");
 
-        ctx->ei.val = stack_pop(ctx);
+        ctx->ei->value = stack_pop(ctx);
         return DISP_E_EXCEPTION;
     }
 
@@ -2731,9 +2724,9 @@ static HRESULT unwind_exception(script_ctx_t *ctx, HRESULT exception_hres)
 
         static const WCHAR messageW[] = {'m','e','s','s','a','g','e',0};
 
-        WARN("Exception %08x %s", exception_hres, debugstr_jsval(ctx->ei.val));
-        if(jsval_type(ctx->ei.val) == JSV_OBJECT) {
-            error_obj = to_jsdisp(get_object(ctx->ei.val));
+        WARN("Exception %08x %s", exception_hres, debugstr_jsval(ctx->ei->value));
+        if(jsval_type(ctx->ei->value) == JSV_OBJECT) {
+            error_obj = to_jsdisp(get_object(ctx->ei->value));
             if(error_obj) {
                 hres = jsdisp_propget_name(error_obj, messageW, &msg);
                 if(SUCCEEDED(hres)) {
@@ -2773,9 +2766,8 @@ static HRESULT unwind_exception(script_ctx_t *ctx, HRESULT exception_hres)
     frame->ip = catch_off ? catch_off : except_frame->finally_off;
     if(catch_off) assert(frame->bytecode->instrs[frame->ip].op == OP_enter_catch);
 
-    except_val = ctx->ei.val;
-    ctx->ei.val = jsval_undefined();
-    clear_ei(ctx);
+    except_val = ctx->ei->value;
+    ctx->ei->value = jsval_undefined();
 
     /* keep current except_frame if we're entering catch block with finally block associated */
     if(catch_off && except_frame->finally_off) {

dlls/jscript/engine.h

@@ -221,6 +221,15 @@ static inline scope_chain_t *scope_addref(scope_chain_t *scope)
     return scope;
 }
 
+struct _jsexcept_t {
+    jsval_t value;
+    jsexcept_t *prev;
+};
+
+void enter_script(script_ctx_t*,jsexcept_t*) DECLSPEC_HIDDEN;
+HRESULT leave_script(script_ctx_t*,HRESULT) DECLSPEC_HIDDEN;
+void reset_ei(jsexcept_t*) DECLSPEC_HIDDEN;
+
 typedef struct _except_frame_t except_frame_t;
 struct _parser_ctx_t;
 

dlls/jscript/error.c

@@ -20,6 +20,7 @@
 #include <math.h>
 
 #include "jscript.h"
+#include "engine.h"
 
 #include "wine/debug.h"
 
@@ -403,8 +404,8 @@ static HRESULT throw_error(script_ctx_t *ctx, HRESULT error, const WCHAR *str, j
     if(FAILED(hres))
         return hres;
 
-    jsval_release(ctx->ei.val);
-    ctx->ei.val = jsval_obj(err);
+    jsval_release(ctx->ei->value);
+    ctx->ei->value = jsval_obj(err);
     return error;
 }
 

dlls/jscript/jscript.c

@@ -70,7 +70,6 @@ void script_release(script_ctx_t *ctx)
         return;
 
     jsval_release(ctx->acc);
-    clear_ei(ctx);
     if(ctx->cc)
         release_cc(ctx->cc);
     heap_pool_free(&ctx->tmp_heap);
@@ -102,13 +101,39 @@ static inline BOOL is_started(script_ctx_t *ctx)
         || ctx->state == SCRIPTSTATE_DISCONNECTED;
 }
 
+void reset_ei(jsexcept_t *ei)
+{
+    jsval_release(ei->value);
+    ei->value = jsval_undefined();
+}
+
+void enter_script(script_ctx_t *ctx, jsexcept_t *ei)
+{
+    memset(ei, 0, sizeof(*ei));
+    ei->prev = ctx->ei;
+    ctx->ei = ei;
+    TRACE("ctx %p ei %p prev %p\n", ctx, ei, ei->prev);
+}
+
+HRESULT leave_script(script_ctx_t *ctx, HRESULT result)
+{
+    jsexcept_t *ei = ctx->ei;
+
+    TRACE("ctx %p ei %p prev %p\n", ctx, ei, ei->prev);
+
+    ctx->ei = ei->prev;
+    if(FAILED(result))
+        WARN("%08x\n", result);
+    reset_ei(ei);
+    return result;
+}
+
 static HRESULT exec_global_code(JScript *This, bytecode_t *code)
 {
     HRESULT hres;
 
     IActiveScriptSite_OnEnterScript(This->site);
 
-    clear_ei(This->ctx);
     hres = exec_source(This->ctx, EXEC_GLOBAL, code, &code->global_code, NULL, NULL, NULL, This->ctx->global, 0, NULL, NULL);
 
     IActiveScriptSite_OnLeaveScript(This->site);
@@ -141,9 +166,14 @@ static void clear_persistent_code_list(JScript *This)
 static void exec_queued_code(JScript *This)
 {
     bytecode_t *iter;
+    jsexcept_t ei;
+    HRESULT hres;
 
-    LIST_FOR_EACH_ENTRY(iter, &This->queued_code, bytecode_t, entry)
-        exec_global_code(This, iter);
+    LIST_FOR_EACH_ENTRY(iter, &This->queued_code, bytecode_t, entry) {
+        enter_script(This->ctx, &ei);
+        hres = exec_global_code(This, iter);
+        leave_script(This->ctx, hres);
+    }
 
     clear_script_queue(This);
 }
@@ -723,7 +753,6 @@ static HRESULT WINAPI JScriptParse_InitNew(IActiveScriptParse *iface)
     ctx->safeopt = This->safeopt;
     ctx->version = This->version;
     ctx->html_mode = This->html_mode;
-    ctx->ei.val = jsval_undefined();
     ctx->acc = jsval_undefined();
     heap_pool_init(&ctx->tmp_heap);
 
@@ -765,6 +794,7 @@ static HRESULT WINAPI JScriptParse_ParseScriptText(IActiveScriptParse *iface,
 {
     JScript *This = impl_from_IActiveScriptParse(iface);
     bytecode_t *code;
+    jsexcept_t ei;
     HRESULT hres;
 
     TRACE("(%p)->(%s %s %p %s %s %u %x %p %p)\n", This, debugstr_w(pstrCode),
@@ -774,17 +804,17 @@ static HRESULT WINAPI JScriptParse_ParseScriptText(IActiveScriptParse *iface,
     if(This->thread_id != GetCurrentThreadId() || This->ctx->state == SCRIPTSTATE_CLOSED)
         return E_UNEXPECTED;
 
+    enter_script(This->ctx, &ei);
     hres = compile_script(This->ctx, pstrCode, dwSourceContextCookie, ulStartingLine, NULL, pstrDelimiter,
             (dwFlags & SCRIPTTEXT_ISEXPRESSION) != 0, This->is_encode, &code);
     if(FAILED(hres))
-        return hres;
+        return leave_script(This->ctx, hres);
 
     if(dwFlags & SCRIPTTEXT_ISEXPRESSION) {
         jsval_t r;
 
         IActiveScriptSite_OnEnterScript(This->site);
 
-        clear_ei(This->ctx);
         hres = exec_source(This->ctx, EXEC_GLOBAL, code, &code->global_code, NULL, NULL, NULL, This->ctx->global, 0, NULL, &r);
         if(SUCCEEDED(hres)) {
             if(pvarResult)
@@ -793,7 +823,7 @@ static HRESULT WINAPI JScriptParse_ParseScriptText(IActiveScriptParse *iface,
         }
 
         IActiveScriptSite_OnLeaveScript(This->site);
-        return hres;
+        return leave_script(This->ctx, hres);
     }
 
     code->is_persistent = (dwFlags & SCRIPTTEXT_ISPERSISTENT) != 0;
@@ -804,17 +834,16 @@ static HRESULT WINAPI JScriptParse_ParseScriptText(IActiveScriptParse *iface,
      */
     if(!pvarResult && !is_started(This->ctx)) {
         list_add_tail(&This->queued_code, &code->entry);
-        return S_OK;
-    }
-
-    hres = exec_global_code(This, code);
+    }else {
+        hres = exec_global_code(This, code);
 
-    if(code->is_persistent)
-        list_add_tail(&This->persistent_code, &code->entry);
-    else
-        release_bytecode(code);
+        if(code->is_persistent)
+            list_add_tail(&This->persistent_code, &code->entry);
+        else
+            release_bytecode(code);
+    }
 
-    if(FAILED(hres))
+    if(FAILED(hres = leave_script(This->ctx, hres)))
         return hres;
 
     if(pvarResult)
@@ -862,6 +891,7 @@ static HRESULT WINAPI JScriptParseProcedure_ParseProcedureText(IActiveScriptPars
     JScript *This = impl_from_IActiveScriptParseProcedure2(iface);
     bytecode_t *code;
     jsdisp_t *dispex;
+    jsexcept_t ei;
     HRESULT hres;
 
     TRACE("(%p)->(%s %s %s %s %p %s %s %u %x %p)\n", This, debugstr_w(pstrCode), debugstr_w(pstrFormalParams),
@@ -871,15 +901,13 @@ static HRESULT WINAPI JScriptParseProcedure_ParseProcedureText(IActiveScriptPars
     if(This->thread_id != GetCurrentThreadId() || This->ctx->state == SCRIPTSTATE_CLOSED)
         return E_UNEXPECTED;
 
+    enter_script(This->ctx, &ei);
     hres = compile_script(This->ctx, pstrCode, dwSourceContextCookie, ulStartingLineNumber, pstrFormalParams,
                           pstrDelimiter, FALSE, This->is_encode, &code);
-    if(FAILED(hres)) {
-        WARN("Parse failed %08x\n", hres);
-        return hres;
-    }
-
-    hres = create_source_function(This->ctx, code, &code->global_code, NULL,  &dispex);
+    if(SUCCEEDED(hres))
+        hres = create_source_function(This->ctx, code, &code->global_code, NULL,  &dispex);
     release_bytecode(code);
+    hres = leave_script(This->ctx, hres);
     if(FAILED(hres))
         return hres;
 
@@ -1051,17 +1079,20 @@ static ULONG WINAPI VariantChangeType_Release(IVariantChangeType *iface)
 static HRESULT WINAPI VariantChangeType_ChangeType(IVariantChangeType *iface, VARIANT *dst, VARIANT *src, LCID lcid, VARTYPE vt)
 {
     JScript *This = impl_from_IVariantChangeType(iface);
+    jsexcept_t ei;
     VARIANT res;
     HRESULT hres;
 
-    TRACE("(%p)->(%p %p%s %x %d)\n", This, dst, src, debugstr_variant(src), lcid, vt);
+    TRACE("(%p)->(%p %s %x %s)\n", This, dst, debugstr_variant(src), lcid, debugstr_vt(vt));
 
     if(!This->ctx) {
         FIXME("Object uninitialized\n");
         return E_UNEXPECTED;
     }
 
+    enter_script(This->ctx, &ei);
     hres = variant_change_type(This->ctx, &res, src, vt);
+    hres = leave_script(This->ctx, hres);
     if(FAILED(hres))
         return hres;
 

dlls/jscript/jscript.h

@@ -48,6 +48,7 @@
 
 typedef struct _jsval_t jsval_t;
 typedef struct _jsstr_t jsstr_t;
+typedef struct _jsexcept_t jsexcept_t;
 typedef struct _script_ctx_t script_ctx_t;
 typedef struct _dispex_prop_t dispex_prop_t;
 typedef struct _property_desc_t property_desc_t;
@@ -399,11 +400,6 @@ struct _property_desc_t {
 };
 
 typedef struct {
-    EXCEPINFO ei;
-    jsval_t val;
-} jsexcept_t;
-
-typedef struct {
     unsigned index;
     unsigned length;
 } match_result_t;
@@ -424,7 +420,7 @@ struct _script_ctx_t {
     LCID lcid;
     cc_ctx_t *cc;
     JSCaller *jscaller;
-    jsexcept_t ei;
+    jsexcept_t *ei;
 
     heap_pool_t tmp_heap;
 
@@ -462,7 +458,6 @@ struct _script_ctx_t {
 };
 
 void script_release(script_ctx_t*) DECLSPEC_HIDDEN;
-void clear_ei(script_ctx_t*) DECLSPEC_HIDDEN;
 
 static inline void script_addref(script_ctx_t *ctx)
 {

dlls/jscript/jsregexp.c

@@ -286,10 +286,8 @@ static INT index_from_val(script_ctx_t *ctx, jsval_t v)
     HRESULT hres;
 
     hres = to_number(ctx, v, &n);
-    if(FAILED(hres)) {
-        clear_ei(ctx); /* FIXME: Move ignoring exceptions to to_primitive */
+    if(FAILED(hres))
         return 0;
-    }
 
     n = floor(n);
     return is_int32(n) ? n : 0;

dlls/jscript/jsutils.c

@@ -873,14 +873,16 @@ HRESULT to_object(script_ctx_t *ctx, jsval_t val, IDispatch **disp)
 
 HRESULT variant_change_type(script_ctx_t *ctx, VARIANT *dst, VARIANT *src, VARTYPE vt)
 {
+    jsexcept_t ei;
     jsval_t val;
     HRESULT hres;
 
-    clear_ei(ctx);
     hres = variant_to_jsval(src, &val);
     if(FAILED(hres))
         return hres;
 
+    enter_script(ctx, &ei);
+
     switch(vt) {
     case VT_I2:
     case VT_I4: {
@@ -948,6 +950,7 @@ HRESULT variant_change_type(script_ctx_t *ctx, VARIANT *dst, VARIANT *src, VARTY
     }
 
     jsval_release(val);
+    leave_script(ctx, hres);
     if(FAILED(hres))
         return hres;