jscript: Added prefix decrement expression implementation.
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@ -1582,10 +1582,38 @@ HRESULT pre_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWOR
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return S_OK;
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}
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HRESULT pre_decrement_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
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/* ECMA-262 3rd Edition 11.4.5 */
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HRESULT pre_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
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{
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FIXME("\n");
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return E_NOTIMPL;
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unary_expression_t *expr = (unary_expression_t*)_expr;
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VARIANT val, num;
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exprval_t exprval;
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HRESULT hres;
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TRACE("\n");
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hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
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if(FAILED(hres))
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return hres;
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hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
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if(SUCCEEDED(hres)) {
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hres = to_number(ctx->parser->script, &val, ei, &num);
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VariantClear(&val);
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}
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if(SUCCEEDED(hres)) {
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num_set_val(&val, num_val(&num)-1.0);
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hres = put_value(ctx->parser->script, &exprval, &val, ei);
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}
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exprval_release(&exprval);
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if(FAILED(hres))
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return hres;
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ret->type = EXPRVAL_VARIANT;
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ret->u.var = val;
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return S_OK;
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}
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HRESULT new_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
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@ -226,5 +226,7 @@ ok(0 >= 0, "0 >= 0");
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tmp = 1;
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ok(++tmp === 2, "++tmp (1) is not 2");
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ok(tmp === 2, "incremented tmp is not 2");
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ok(--tmp === 1, "--tmp (2) is not 1");
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ok(tmp === 1, "decremented tmp is not 1");
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reportSuccess();
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