HRESULT jsval_copy(jsval_t v, jsval_t *r) { switch(jsval_type(v)) { case JSV_UNDEFINED: case JSV_NULL: case JSV_NUMBER: case JSV_BOOL: *r = v; return S_OK; case JSV_OBJECT: if(get_object(v)) IDispatch_AddRef(get_object(v)); *r = v; return S_OK; case JSV_STRING: { jsstr_addref(get_string(v)); *r = v; return S_OK; } case JSV_VARIANT: return jsval_variant(r, get_variant(v)); } assert(0); return E_FAIL; }
HRESULT variant_to_jsval(VARIANT *var, jsval_t *r) { switch(V_VT(var)) { case VT_EMPTY: *r = jsval_undefined(); return S_OK; case VT_NULL: *r = jsval_null(); return S_OK; case VT_BOOL: *r = jsval_bool(V_BOOL(var)); return S_OK; case VT_I4: *r = jsval_number(V_I4(var)); return S_OK; case VT_R8: *r = jsval_number(V_R8(var)); return S_OK; case VT_BSTR: { jsstr_t *str; str = jsstr_alloc_len(V_BSTR(var), SysStringLen(V_BSTR(var))); if(!str) return E_OUTOFMEMORY; if(!V_BSTR(var)) str->length_flags |= JSSTR_FLAG_NULLBSTR; *r = jsval_string(str); return S_OK; } case VT_DISPATCH: { if(V_DISPATCH(var)) IDispatch_AddRef(V_DISPATCH(var)); *r = jsval_disp(V_DISPATCH(var)); return S_OK; } case VT_I2: *r = jsval_number(V_I2(var)); return S_OK; case VT_INT: *r = jsval_number(V_INT(var)); return S_OK; case VT_UNKNOWN: if(V_UNKNOWN(var)) { IDispatch *disp; HRESULT hres; hres = IUnknown_QueryInterface(V_UNKNOWN(var), &IID_IDispatch, (void**)&disp); if(SUCCEEDED(hres)) { *r = jsval_disp(disp); return S_OK; } } /* fall through */ default: return jsval_variant(r, var); } }
HRESULT variant_to_jsval(VARIANT *var, jsval_t *r) { if(V_VT(var) == (VT_VARIANT|VT_BYREF)) var = V_VARIANTREF(var); switch(V_VT(var)) { case VT_EMPTY: *r = jsval_undefined(); return S_OK; case VT_NULL: *r = jsval_null(); return S_OK; case VT_BOOL: *r = jsval_bool(V_BOOL(var)); return S_OK; case VT_I4: *r = jsval_number(V_I4(var)); return S_OK; case VT_R8: *r = jsval_number(V_R8(var)); return S_OK; case VT_BSTR: { jsstr_t *str; if(V_BSTR(var)) { str = jsstr_alloc_len(V_BSTR(var), SysStringLen(V_BSTR(var))); if(!str) return E_OUTOFMEMORY; }else { str = jsstr_null_bstr(); } *r = jsval_string(str); return S_OK; } case VT_DISPATCH: { if(V_DISPATCH(var)) IDispatch_AddRef(V_DISPATCH(var)); *r = jsval_disp(V_DISPATCH(var)); return S_OK; } case VT_I2: *r = jsval_number(V_I2(var)); return S_OK; case VT_UI2: *r = jsval_number(V_UI2(var)); return S_OK; case VT_INT: *r = jsval_number(V_INT(var)); return S_OK; case VT_UI4: *r = jsval_number(V_UI4(var)); return S_OK; case VT_UI8: /* * Native doesn't support VT_UI8 here, but it's needed for IE9+ APIs * (native IE9 doesn't use jscript.dll for JavaScript). */ *r = jsval_number(V_UI8(var)); return S_OK; case VT_R4: *r = jsval_number(V_R4(var)); return S_OK; case VT_UNKNOWN: if(V_UNKNOWN(var)) { IDispatch *disp; HRESULT hres; hres = IUnknown_QueryInterface(V_UNKNOWN(var), &IID_IDispatch, (void**)&disp); if(SUCCEEDED(hres)) { *r = jsval_disp(disp); return S_OK; } }else { *r = jsval_disp(NULL); return S_OK; } /* fall through */ default: return jsval_variant(r, var); } }