jscript: Added '&&' expression implementation.

dlls/jscript/engine.c

@@ -1270,10 +1270,49 @@ HRESULT logical_or_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD f
     return S_OK;
 }
 
-HRESULT logical_and_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
+/* ECMA-262 3rd Edition    11.11 */
+HRESULT logical_and_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    binary_expression_t *expr = (binary_expression_t*)_expr;
+    exprval_t exprval;
+    VARIANT_BOOL b;
+    VARIANT val;
+    HRESULT hres;
+
+    TRACE("\n");
+
+    hres = expr_eval(ctx, expr->expression1, 0, ei, &exprval);
+    if(FAILED(hres))
+        return hres;
+
+    hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
+    exprval_release(&exprval);
+    if(FAILED(hres))
+        return hres;
+
+    hres = to_boolean(&val, &b);
+    if(SUCCEEDED(hres) && !b) {
+        ret->type = EXPRVAL_VARIANT;
+        ret->u.var = val;
+        return S_OK;
+    }
+
+    VariantClear(&val);
+    if(FAILED(hres))
+        return hres;
+
+    hres = expr_eval(ctx, expr->expression2, 0, ei, &exprval);
+    if(FAILED(hres))
+        return hres;
+
+    hres = exprval_to_value(ctx->parser->script, &exprval, ei, &val);
+    exprval_release(&exprval);
+    if(FAILED(hres))
+        return hres;
+
+    ret->type = EXPRVAL_VARIANT;
+    ret->u.var = val;
+    return S_OK;
 }
 
 HRESULT binary_or_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)

dlls/jscript/tests/lang.js

@@ -186,4 +186,13 @@ ok(tmp === 3, "3 || (...) is not 3");
 tmp = false || 2;
 ok(tmp === 2, "false || 2 is not 2");
 
+tmp = 0 && ok(false, "second and expression called");
+ok(tmp === 0, "0 && (...) is not 0");
+
+tmp = true && "test";
+ok(tmp === "test", "true && \"test\" is not \"test\"");
+
+tmp = true && 0;
+ok(tmp === 0, "true && 0 is not 0");
+
 reportSuccess();