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jscript: Added postfix decrement expression implementation.

This commit is contained in:
Jacek Caban 2008-09-11 23:58:48 +02:00 committed by Alexandre Julliard
parent b291b83a6b
commit 2950c3fa2d
2 changed files with 34 additions and 3 deletions
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35
dlls/jscript/engine.c
View File

@ -1571,10 +1571,39 @@ HRESULT post_increment_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWO
return S_OK;
}
HRESULT post_decrement_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
/* ECMA-262 3rd Edition 11.3.2 */
HRESULT post_decrement_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
{
FIXME("\n");
return E_NOTIMPL;
unary_expression_t *expr = (unary_expression_t*)_expr;
VARIANT val, num;
exprval_t exprval;
HRESULT hres;
TRACE("\n");
hres = expr_eval(ctx, expr->expression, EXPR_NEWREF, ei, &exprval);
if(FAILED(hres))
return hres;
hres = exprval_value(ctx->parser->script, &exprval, ei, &val);
if(SUCCEEDED(hres)) {
hres = to_number(ctx->parser->script, &val, ei, &num);
VariantClear(&val);
}
if(SUCCEEDED(hres)) {
VARIANT dec;
num_set_val(&dec, num_val(&num)-1.0);
hres = put_value(ctx->parser->script, &exprval, &dec, ei);
}
exprval_release(&exprval);
if(FAILED(hres))
return hres;
ret->type = EXPRVAL_VARIANT;
ret->u.var = num;
return S_OK;
}
/* ECMA-262 3rd Edition 11.4.4 */

2
dlls/jscript/tests/lang.js
View File

@ -230,5 +230,7 @@ ok(--tmp === 1, "--tmp (2) is not 1");
ok(tmp === 1, "decremented tmp is not 1");
ok(tmp++ === 1, "tmp++ (1) is not 1");
ok(tmp === 2, "incremented tmp(1) is not 2");
ok(tmp-- === 2, "tmp-- (2) is not 2");
ok(tmp === 1, "decremented tmp is not 1");
reportSuccess();