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Sweden-Number/dlls/jscript/error.c

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/*
* Copyright 2009 Piotr Caban
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <math.h>
#include <assert.h>
#include <wchar.h>
#include "jscript.h"
#include "engine.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(jscript);
/* ECMA-262 3rd Edition 15.11.4.4 */
static HRESULT Error_toString(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
jsstr_t *name = NULL, *msg = NULL, *ret = NULL;
jsdisp_t *jsthis = NULL;
jsval_t v;
HRESULT hres;
TRACE("\n");
if(is_object_instance(vthis))
jsthis = to_jsdisp(get_object(vthis));
else if(ctx->version >= SCRIPTLANGUAGEVERSION_ES5)
return JS_E_OBJECT_EXPECTED;
if(!jsthis || ctx->version < 2) {
if(r) {
jsstr_t *str;
str = jsstr_alloc(L"[object Error]");
if(!str)
return E_OUTOFMEMORY;
*r = jsval_string(str);
}
return S_OK;
}
hres = jsdisp_propget_name(jsthis, L"name", &v);
if(FAILED(hres))
return hres;
if(!is_undefined(v)) {
hres = to_string(ctx, v, &name);
jsval_release(v);
if(FAILED(hres))
return hres;
}
hres = jsdisp_propget_name(jsthis, L"message", &v);
if(SUCCEEDED(hres)) {
if(!is_undefined(v)) {
hres = to_string(ctx, v, &msg);
jsval_release(v);
}
}
if(SUCCEEDED(hres)) {
unsigned name_len = name ? jsstr_length(name) : 0;
unsigned msg_len = msg ? jsstr_length(msg) : 0;
if(name_len && msg_len) {
WCHAR *ptr;
ret = jsstr_alloc_buf(name_len + msg_len + 2, &ptr);
if(ret) {
jsstr_flush(name, ptr);
ptr[name_len] = ':';
ptr[name_len+1] = ' ';
jsstr_flush(msg, ptr+name_len+2);
}else {
hres = E_OUTOFMEMORY;
}
}else if(name_len) {
ret = name;
name = NULL;
}else if(msg_len) {
ret = msg;
msg = NULL;
}else {
ret = jsstr_alloc(L"[object Error]");
}
}
if(msg)
jsstr_release(msg);
if(name)
jsstr_release(name);
if(FAILED(hres))
return hres;
if(!ret)
return E_OUTOFMEMORY;
if(r)
*r = jsval_string(ret);
else
jsstr_release(ret);
return S_OK;
}
static HRESULT Error_value(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
TRACE("\n");
switch(flags) {
case INVOKE_FUNC:
return JS_E_FUNCTION_EXPECTED;
default:
FIXME("unimplemented flags %x\n", flags);
return E_NOTIMPL;
}
return S_OK;
}
static const builtin_prop_t Error_props[] = {
{L"toString", Error_toString, PROPF_METHOD}
};
static const builtin_info_t Error_info = {
JSCLASS_ERROR,
Error_value,
ARRAY_SIZE(Error_props),
Error_props,
NULL,
NULL
};
static const builtin_info_t ErrorInst_info = {
JSCLASS_ERROR,
Error_value,
0,
NULL,
NULL,
NULL
};
static HRESULT alloc_error(script_ctx_t *ctx, jsdisp_t *prototype,
jsdisp_t *constr, jsdisp_t **ret)
{
jsdisp_t *err;
HRESULT hres;
err = heap_alloc_zero(sizeof(*err));
if(!err)
return E_OUTOFMEMORY;
if(prototype)
hres = init_dispex(err, ctx, &Error_info, prototype);
else
hres = init_dispex_from_constr(err, ctx, &ErrorInst_info,
constr ? constr : ctx->error_constr);
if(FAILED(hres)) {
heap_free(err);
return hres;
}
*ret = err;
return S_OK;
}
static HRESULT create_error(script_ctx_t *ctx, jsdisp_t *constr,
UINT number, jsstr_t *msg, jsdisp_t **ret)
{
jsdisp_t *err;
HRESULT hres;
hres = alloc_error(ctx, NULL, constr, &err);
if(FAILED(hres))
return hres;
hres = jsdisp_define_data_property(err, L"number", PROPF_WRITABLE | PROPF_CONFIGURABLE,
jsval_number((INT)number));
if(FAILED(hres)) {
jsdisp_release(err);
return hres;
}
hres = jsdisp_define_data_property(err, L"message",
PROPF_WRITABLE | PROPF_ENUMERABLE | PROPF_CONFIGURABLE,
jsval_string(msg));
if(SUCCEEDED(hres))
hres = jsdisp_define_data_property(err, L"description", PROPF_WRITABLE | PROPF_CONFIGURABLE,
jsval_string(msg));
if(FAILED(hres)) {
jsdisp_release(err);
return hres;
}
*ret = err;
return S_OK;
}
static HRESULT error_constr(script_ctx_t *ctx, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r, jsdisp_t *constr) {
jsdisp_t *err;
UINT num = 0;
jsstr_t *msg = NULL;
HRESULT hres;
if(argc) {
double n;
hres = to_number(ctx, argv[0], &n);
if(FAILED(hres)) /* FIXME: really? */
n = NAN;
if(isnan(n))
hres = to_string(ctx, argv[0], &msg);
if(FAILED(hres))
return hres;
num = n;
}
if(!msg) {
if(argc > 1) {
hres = to_string(ctx, argv[1], &msg);
if(FAILED(hres))
return hres;
}else {
msg = jsstr_empty();
}
}
switch(flags) {
case INVOKE_FUNC:
case DISPATCH_CONSTRUCT:
hres = create_error(ctx, constr, num, msg, &err);
jsstr_release(msg);
if(FAILED(hres))
return hres;
if(r)
*r = jsval_obj(err);
else
jsdisp_release(err);
return S_OK;
default:
if(msg)
jsstr_release(msg);
FIXME("unimplemented flags %x\n", flags);
return E_NOTIMPL;
}
}
static HRESULT ErrorConstr_value(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
TRACE("\n");
return error_constr(ctx, flags, argc, argv, r, ctx->error_constr);
}
static HRESULT EvalErrorConstr_value(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
TRACE("\n");
return error_constr(ctx, flags, argc, argv, r, ctx->eval_error_constr);
}
static HRESULT RangeErrorConstr_value(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
TRACE("\n");
return error_constr(ctx, flags, argc, argv, r, ctx->range_error_constr);
}
static HRESULT ReferenceErrorConstr_value(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
TRACE("\n");
return error_constr(ctx, flags, argc, argv, r, ctx->reference_error_constr);
}
static HRESULT RegExpErrorConstr_value(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
TRACE("\n");
return error_constr(ctx, flags, argc, argv, r, ctx->regexp_error_constr);
}
static HRESULT SyntaxErrorConstr_value(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
TRACE("\n");
return error_constr(ctx, flags, argc, argv, r, ctx->syntax_error_constr);
}
static HRESULT TypeErrorConstr_value(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
TRACE("\n");
return error_constr(ctx, flags, argc, argv, r, ctx->type_error_constr);
}
static HRESULT URIErrorConstr_value(script_ctx_t *ctx, jsval_t vthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
TRACE("\n");
return error_constr(ctx, flags, argc, argv, r, ctx->uri_error_constr);
}
HRESULT init_error_constr(script_ctx_t *ctx, jsdisp_t *object_prototype)
{
static const WCHAR *names[] = {L"Error", L"EvalError", L"RangeError",
L"ReferenceError", L"RegExpError", L"SyntaxError", L"TypeError", L"URIError"};
jsdisp_t **constr_addr[] = {&ctx->error_constr, &ctx->eval_error_constr,
&ctx->range_error_constr, &ctx->reference_error_constr, &ctx->regexp_error_constr,
&ctx->syntax_error_constr, &ctx->type_error_constr,
&ctx->uri_error_constr};
static builtin_invoke_t constr_val[] = {ErrorConstr_value, EvalErrorConstr_value,
RangeErrorConstr_value, ReferenceErrorConstr_value, RegExpErrorConstr_value,
SyntaxErrorConstr_value, TypeErrorConstr_value, URIErrorConstr_value};
jsdisp_t *err;
unsigned int i;
jsstr_t *str;
HRESULT hres;
for(i=0; i < ARRAY_SIZE(names); i++) {
hres = alloc_error(ctx, i==0 ? object_prototype : NULL, NULL, &err);
if(FAILED(hres))
return hres;
str = jsstr_alloc(names[i]);
if(!str) {
jsdisp_release(err);
return E_OUTOFMEMORY;
}
hres = jsdisp_define_data_property(err, L"name", PROPF_WRITABLE | PROPF_CONFIGURABLE,
jsval_string(str));
jsstr_release(str);
if(SUCCEEDED(hres))
hres = create_builtin_constructor(ctx, constr_val[i], names[i], NULL,
PROPF_CONSTR|1, err, constr_addr[i]);
jsdisp_release(err);
if(FAILED(hres))
return hres;
}
return S_OK;
}
static jsstr_t *format_error_message(HRESULT error, const WCHAR *arg)
{
size_t len, arg_len = 0;
const WCHAR *res, *pos;
WCHAR *buf, *p;
jsstr_t *r;
if(!is_jscript_error(error))
return jsstr_empty();
len = LoadStringW(jscript_hinstance, HRESULT_CODE(error), (WCHAR*)&res, 0);
pos = wmemchr(res, '|', len);
if(pos && arg)
arg_len = lstrlenW(arg);
r = jsstr_alloc_buf(len + arg_len - (pos ? 1 : 0), &buf);
if(!r)
return jsstr_empty();
p = buf;
if(pos > res) {
memcpy(p, res, (pos - res) * sizeof(WCHAR));
p += pos - res;
}
pos = pos ? pos + 1 : res;
if(arg_len) {
memcpy(p, arg, arg_len * sizeof(WCHAR));
p += arg_len;
}
if(pos != res + len)
memcpy(p, pos, (res + len - pos) * sizeof(WCHAR));
return r;
}
HRESULT throw_error(script_ctx_t *ctx, HRESULT error, const WCHAR *str)
{
jsexcept_t *ei = ctx->ei;
TRACE("%08lx\n", error);
reset_ei(ei);
ei->error = error;
if(str)
ei->message = format_error_message(error, str);
return DISP_E_EXCEPTION;
}
void set_error_location(jsexcept_t *ei, bytecode_t *code, unsigned loc, unsigned source_id, jsstr_t *line)
{
if(is_jscript_error(ei->error)) {
if(!ei->source) {
const WCHAR *res;
size_t len;
len = LoadStringW(jscript_hinstance, source_id, (WCHAR*)&res, 0);
ei->source = jsstr_alloc_len(res, len);
}
if(!ei->message)
ei->message = format_error_message(ei->error, NULL);
}
TRACE("source %s in %s\n", debugstr_w(code->source + loc), debugstr_w(code->source));
ei->code = bytecode_addref(code);
ei->loc = loc;
if(line)
ei->line = jsstr_addref(line);
}
jsdisp_t *create_builtin_error(script_ctx_t *ctx)
{
jsdisp_t *constr = ctx->error_constr, *r;
jsexcept_t *ei = ctx->ei;
HRESULT hres;
assert(FAILED(ei->error) && ei->error != DISP_E_EXCEPTION);
if(is_jscript_error(ei->error)) {
switch(ei->error) {
case JS_E_SYNTAX:
case JS_E_MISSING_SEMICOLON:
case JS_E_MISSING_LBRACKET:
case JS_E_MISSING_RBRACKET:
case JS_E_EXPECTED_IDENTIFIER:
case JS_E_EXPECTED_ASSIGN:
case JS_E_INVALID_CHAR:
case JS_E_UNTERMINATED_STRING:
case JS_E_MISPLACED_RETURN:
case JS_E_INVALID_BREAK:
case JS_E_INVALID_CONTINUE:
case JS_E_LABEL_REDEFINED:
case JS_E_LABEL_NOT_FOUND:
case JS_E_EXPECTED_CCEND:
case JS_E_DISABLED_CC:
case JS_E_EXPECTED_AT:
constr = ctx->syntax_error_constr;
break;
case JS_E_TO_PRIMITIVE:
case JS_E_INVALIDARG:
case JS_E_OBJECT_REQUIRED:
case JS_E_INVALID_PROPERTY:
case JS_E_INVALID_ACTION:
case JS_E_MISSING_ARG:
case JS_E_FUNCTION_EXPECTED:
case JS_E_DATE_EXPECTED:
case JS_E_NUMBER_EXPECTED:
case JS_E_OBJECT_EXPECTED:
case JS_E_UNDEFINED_VARIABLE:
case JS_E_BOOLEAN_EXPECTED:
case JS_E_VBARRAY_EXPECTED:
case JS_E_INVALID_DELETE:
case JS_E_JSCRIPT_EXPECTED:
case JS_E_ENUMERATOR_EXPECTED:
case JS_E_REGEXP_EXPECTED:
case JS_E_ARRAY_EXPECTED:
case JS_E_CYCLIC_PROTO_VALUE:
case JS_E_CANNOT_CREATE_FOR_NONEXTENSIBLE:
case JS_E_OBJECT_NONEXTENSIBLE:
case JS_E_NONCONFIGURABLE_REDEFINED:
case JS_E_NONWRITABLE_MODIFIED:
case JS_E_PROP_DESC_MISMATCH:
case JS_E_INVALID_WRITABLE_PROP_DESC:
constr = ctx->type_error_constr;
break;
case JS_E_SUBSCRIPT_OUT_OF_RANGE:
case JS_E_FRACTION_DIGITS_OUT_OF_RANGE:
case JS_E_PRECISION_OUT_OF_RANGE:
case JS_E_INVALID_LENGTH:
constr = ctx->range_error_constr;
break;
case JS_E_ILLEGAL_ASSIGN:
constr = ctx->reference_error_constr;
break;
case JS_E_REGEXP_SYNTAX:
constr = ctx->regexp_error_constr;
break;
case JS_E_INVALID_URI_CODING:
case JS_E_INVALID_URI_CHAR:
constr = ctx->uri_error_constr;
break;
}
}
hres = create_error(ctx, constr, ei->error, ei->message ? ei->message : jsstr_empty(), &r);
return SUCCEEDED(hres) ? r : NULL;
}
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