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jscript: Store separated flag indicating if current exception value is valid. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Jacek Caban 2020-01-30 15:50:22 +01:00 committed by Alexandre Julliard
parent 63683b42f7
commit 3c9b7011ff
4 changed files with 28 additions and 10 deletions
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27
dlls/jscript/engine.c
View File

@ -855,13 +855,21 @@ static HRESULT interp_case(script_ctx_t *ctx)
return S_OK;
}
static void set_error_value(script_ctx_t *ctx, jsval_t value)
{
jsexcept_t *ei = ctx->ei;
reset_ei(ei);
ei->valid_value = TRUE;
ei->value = value;
}
/* ECMA-262 3rd Edition 12.13 */
static HRESULT interp_throw(script_ctx_t *ctx)
{
TRACE("\n");
jsval_release(ctx->ei->value);
ctx->ei->value = stack_pop(ctx);
set_error_value(ctx, stack_pop(ctx));
return DISP_E_EXCEPTION;
}
@ -957,7 +965,7 @@ static HRESULT interp_end_finally(script_ctx_t *ctx)
if(!get_bool(v)) {
TRACE("passing exception\n");
ctx->ei->value = stack_pop(ctx);
set_error_value(ctx, stack_pop(ctx));
return DISP_E_EXCEPTION;
}
@ -2713,6 +2721,7 @@ static void print_backtrace(script_ctx_t *ctx)
static HRESULT unwind_exception(script_ctx_t *ctx, HRESULT exception_hres)
{
except_frame_t *except_frame;
jsexcept_t *ei = ctx->ei;
call_frame_t *frame;
jsval_t except_val;
unsigned catch_off;
@ -2724,8 +2733,8 @@ 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->value));
if(jsval_type(ctx->ei->value) == JSV_OBJECT) {
WARN("Exception %08x %s", exception_hres, debugstr_jsval(ei->valid_value ? ei->value : jsval_undefined()));
if(ei->valid_value && 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);
@ -2766,8 +2775,12 @@ 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->value;
ctx->ei->value = jsval_undefined();
if(ei->valid_value) {
except_val = ctx->ei->value;
ctx->ei->valid_value = FALSE;
}else {
except_val = jsval_undefined();
}
/* keep current except_frame if we're entering catch block with finally block associated */
if(catch_off && except_frame->finally_off) {

2
dlls/jscript/engine.h
View File

@ -222,7 +222,9 @@ static inline scope_chain_t *scope_addref(scope_chain_t *scope)
}
struct _jsexcept_t {
BOOL valid_value;
jsval_t value;
jsexcept_t *prev;
};

3
dlls/jscript/error.c
View File

@ -404,7 +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->value);
reset_ei(ctx->ei);
ctx->ei->valid_value = TRUE;
ctx->ei->value = jsval_obj(err);
return error;
}

6
dlls/jscript/jscript.c
View File

@ -103,8 +103,10 @@ static inline BOOL is_started(script_ctx_t *ctx)
void reset_ei(jsexcept_t *ei)
{
jsval_release(ei->value);
ei->value = jsval_undefined();
if(ei->valid_value) {
jsval_release(ei->value);
ei->valid_value = FALSE;
}
}
void enter_script(script_ctx_t *ctx, jsexcept_t *ei)