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Sweden-Number/dlls/jscript/engine.c

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/*
* Copyright 2008,2011 Jacek Caban for CodeWeavers
*
* 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 "config.h"
#include "wine/port.h"
#include <math.h>
#include <assert.h>
#include "jscript.h"
#include "engine.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(jscript);
static const WCHAR booleanW[] = {'b','o','o','l','e','a','n',0};
static const WCHAR functionW[] = {'f','u','n','c','t','i','o','n',0};
static const WCHAR numberW[] = {'n','u','m','b','e','r',0};
static const WCHAR objectW[] = {'o','b','j','e','c','t',0};
static const WCHAR stringW[] = {'s','t','r','i','n','g',0};
static const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
static const WCHAR unknownW[] = {'u','n','k','n','o','w','n',0};
struct _except_frame_t {
unsigned stack_top;
scope_chain_t *scope;
unsigned catch_off;
unsigned finally_off;
except_frame_t *next;
};
typedef struct {
enum {
EXPRVAL_JSVAL,
EXPRVAL_IDREF,
EXPRVAL_STACK_REF,
EXPRVAL_INVALID
} type;
union {
jsval_t val;
struct {
IDispatch *disp;
DISPID id;
} idref;
unsigned off;
HRESULT hres;
} u;
} exprval_t;
static HRESULT stack_push(script_ctx_t *ctx, jsval_t v)
{
if(!ctx->stack_size) {
ctx->stack = heap_alloc(16*sizeof(*ctx->stack));
if(!ctx->stack)
return E_OUTOFMEMORY;
ctx->stack_size = 16;
}else if(ctx->stack_size == ctx->stack_top) {
jsval_t *new_stack;
new_stack = heap_realloc(ctx->stack, ctx->stack_size*2*sizeof(*new_stack));
if(!new_stack) {
jsval_release(v);
return E_OUTOFMEMORY;
}
ctx->stack = new_stack;
ctx->stack_size *= 2;
}
ctx->stack[ctx->stack_top++] = v;
return S_OK;
}
static inline HRESULT stack_push_string(script_ctx_t *ctx, const WCHAR *str)
{
jsstr_t *v;
v = jsstr_alloc(str);
if(!v)
return E_OUTOFMEMORY;
return stack_push(ctx, jsval_string(v));
}
static inline jsval_t stack_top(script_ctx_t *ctx)
{
assert(ctx->stack_top > ctx->call_ctx->stack_base);
return ctx->stack[ctx->stack_top-1];
}
static inline jsval_t *stack_top_ref(script_ctx_t *ctx, unsigned n)
{
assert(ctx->stack_top > ctx->call_ctx->stack_base+n);
return ctx->stack+ctx->stack_top-1-n;
}
static inline jsval_t stack_topn(script_ctx_t *ctx, unsigned n)
{
return *stack_top_ref(ctx, n);
}
static inline jsval_t *stack_args(script_ctx_t *ctx, unsigned n)
{
if(!n)
return NULL;
assert(ctx->stack_top > ctx->call_ctx->stack_base+n-1);
return ctx->stack + ctx->stack_top-n;
}
static inline jsval_t stack_pop(script_ctx_t *ctx)
{
assert(ctx->stack_top > ctx->call_ctx->stack_base);
return ctx->stack[--ctx->stack_top];
}
static void stack_popn(script_ctx_t *ctx, unsigned n)
{
while(n--)
jsval_release(stack_pop(ctx));
}
static HRESULT stack_pop_number(script_ctx_t *ctx, double *r)
{
jsval_t v;
HRESULT hres;
v = stack_pop(ctx);
hres = to_number(ctx, v, r);
jsval_release(v);
return hres;
}
static HRESULT stack_pop_object(script_ctx_t *ctx, IDispatch **r)
{
jsval_t v;
HRESULT hres;
v = stack_pop(ctx);
if(is_object_instance(v)) {
if(!get_object(v))
return throw_type_error(ctx, JS_E_OBJECT_REQUIRED, NULL);
*r = get_object(v);
return S_OK;
}
hres = to_object(ctx, v, r);
jsval_release(v);
return hres;
}
static inline HRESULT stack_pop_int(script_ctx_t *ctx, INT *r)
{
return to_int32(ctx, stack_pop(ctx), r);
}
static inline HRESULT stack_pop_uint(script_ctx_t *ctx, DWORD *r)
{
return to_uint32(ctx, stack_pop(ctx), r);
}
static inline unsigned local_off(call_frame_t *frame, int ref)
{
return ref < 0
? frame->arguments_off - ref-1
: frame->variables_off + ref;
}
static inline BSTR local_name(call_frame_t *frame, int ref)
{
return ref < 0 ? frame->function->params[-ref-1] : frame->function->variables[ref].name;
}
/* Steals input reference even on failure. */
static HRESULT stack_push_exprval(script_ctx_t *ctx, exprval_t *val)
{
HRESULT hres;
switch(val->type) {
case EXPRVAL_JSVAL:
assert(0);
case EXPRVAL_IDREF:
hres = stack_push(ctx, jsval_disp(val->u.idref.disp));
if(SUCCEEDED(hres))
hres = stack_push(ctx, jsval_number(val->u.idref.id));
else
IDispatch_Release(val->u.idref.disp);
return hres;
case EXPRVAL_STACK_REF:
hres = stack_push(ctx, jsval_number(val->u.off));
if(SUCCEEDED(hres))
hres = stack_push(ctx, jsval_undefined());
return hres;
case EXPRVAL_INVALID:
hres = stack_push(ctx, jsval_undefined());
if(SUCCEEDED(hres))
hres = stack_push(ctx, jsval_number(val->u.hres));
return hres;
}
assert(0);
return E_FAIL;
}
static BOOL stack_topn_exprval(script_ctx_t *ctx, unsigned n, exprval_t *r)
{
jsval_t v = stack_topn(ctx, n+1);
switch(jsval_type(v)) {
case JSV_NUMBER: {
call_frame_t *frame = ctx->call_ctx;
unsigned off = get_number(v);
if(!frame->base_scope->frame && off >= frame->arguments_off) {
DISPID id;
BSTR name;
HRESULT hres;
/* Got stack reference in deoptimized code. Need to convert it back to variable object reference. */
assert(off < frame->variables_off + frame->function->var_cnt);
name = off >= frame->variables_off
? frame->function->variables[off - frame->variables_off].name
: frame->function->params[off - frame->arguments_off];
hres = jsdisp_get_id(ctx->call_ctx->base_scope->jsobj, name, 0, &id);
if(FAILED(hres)) {
r->type = EXPRVAL_INVALID;
r->u.hres = hres;
return FALSE;
}
*stack_top_ref(ctx, n+1) = jsval_obj(jsdisp_addref(frame->base_scope->jsobj));
*stack_top_ref(ctx, n) = jsval_number(id);
r->type = EXPRVAL_IDREF;
r->u.idref.disp = frame->base_scope->obj;
r->u.idref.id = id;
return TRUE;
}
r->type = EXPRVAL_STACK_REF;
r->u.off = off;
return TRUE;
}
case JSV_OBJECT:
r->type = EXPRVAL_IDREF;
r->u.idref.disp = get_object(v);
assert(is_number(stack_topn(ctx, n)));
r->u.idref.id = get_number(stack_topn(ctx, n));
return TRUE;
case JSV_UNDEFINED:
r->type = EXPRVAL_INVALID;
assert(is_number(stack_topn(ctx, n)));
r->u.hres = get_number(stack_topn(ctx, n));
return FALSE;
default:
assert(0);
return FALSE;
}
}
static inline BOOL stack_pop_exprval(script_ctx_t *ctx, exprval_t *r)
{
BOOL ret = stack_topn_exprval(ctx, 0, r);
ctx->stack_top -= 2;
return ret;
}
static HRESULT exprval_propput(script_ctx_t *ctx, exprval_t *ref, jsval_t v)
{
switch(ref->type) {
case EXPRVAL_STACK_REF: {
jsval_t *r = ctx->stack + ref->u.off;
jsval_release(*r);
return jsval_copy(v, r);
}
case EXPRVAL_IDREF:
return disp_propput(ctx, ref->u.idref.disp, ref->u.idref.id, v);
default:
assert(0);
return E_FAIL;
}
}
static HRESULT exprval_propget(script_ctx_t *ctx, exprval_t *ref, jsval_t *r)
{
switch(ref->type) {
case EXPRVAL_STACK_REF:
return jsval_copy(ctx->stack[ref->u.off], r);
case EXPRVAL_IDREF:
return disp_propget(ctx, ref->u.idref.disp, ref->u.idref.id, r);
default:
assert(0);
return E_FAIL;
}
}
static HRESULT exprval_call(script_ctx_t *ctx, exprval_t *ref, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
{
switch(ref->type) {
case EXPRVAL_STACK_REF: {
jsval_t v = ctx->stack[ref->u.off];
if(!is_object_instance(v)) {
FIXME("invoke %s\n", debugstr_jsval(v));
return E_FAIL;
}
return disp_call_value(ctx, get_object(v), NULL, flags, argc, argv, r);
}
case EXPRVAL_IDREF:
return disp_call(ctx, ref->u.idref.disp, ref->u.idref.id, flags, argc, argv, r);
default:
assert(0);
return E_FAIL;
}
}
/* ECMA-262 3rd Edition 8.7.1 */
/* Steals input reference. */
static HRESULT exprval_to_value(script_ctx_t *ctx, exprval_t *ref, jsval_t *r)
{
HRESULT hres;
if(ref->type == EXPRVAL_JSVAL) {
*r = ref->u.val;
return S_OK;
}
hres = exprval_propget(ctx, ref, r);
if(ref->type == EXPRVAL_IDREF)
IDispatch_Release(ref->u.idref.disp);
return hres;
}
static void exprval_release(exprval_t *val)
{
switch(val->type) {
case EXPRVAL_JSVAL:
jsval_release(val->u.val);
return;
case EXPRVAL_IDREF:
if(val->u.idref.disp)
IDispatch_Release(val->u.idref.disp);
return;
case EXPRVAL_STACK_REF:
case EXPRVAL_INVALID:
return;
}
}
static inline void exprval_set_exception(exprval_t *val, HRESULT hres)
{
val->type = EXPRVAL_INVALID;
val->u.hres = hres;
}
static inline void exprval_set_disp_ref(exprval_t *ref, IDispatch *obj, DISPID id)
{
ref->type = EXPRVAL_IDREF;
IDispatch_AddRef(ref->u.idref.disp = obj);
ref->u.idref.id = id;
}
static inline jsval_t steal_ret(call_frame_t *frame)
{
jsval_t r = frame->ret;
frame->ret = jsval_undefined();
return r;
}
static inline void clear_ret(call_frame_t *frame)
{
jsval_release(steal_ret(frame));
}
static HRESULT scope_push(scope_chain_t *scope, jsdisp_t *jsobj, IDispatch *obj, scope_chain_t **ret)
{
scope_chain_t *new_scope;
new_scope = heap_alloc(sizeof(scope_chain_t));
if(!new_scope)
return E_OUTOFMEMORY;
new_scope->ref = 1;
IDispatch_AddRef(obj);
new_scope->jsobj = jsobj;
new_scope->obj = obj;
new_scope->frame = NULL;
new_scope->next = scope ? scope_addref(scope) : NULL;
*ret = new_scope;
return S_OK;
}
static void scope_pop(scope_chain_t **scope)
{
scope_chain_t *tmp;
tmp = *scope;
*scope = tmp->next;
scope_release(tmp);
}
void clear_ei(script_ctx_t *ctx)
{
memset(&ctx->ei.ei, 0, sizeof(ctx->ei.ei));
jsval_release(ctx->ei.val);
ctx->ei.val = jsval_undefined();
}
void scope_release(scope_chain_t *scope)
{
if(--scope->ref)
return;
if(scope->next)
scope_release(scope->next);
IDispatch_Release(scope->obj);
heap_free(scope);
}
static HRESULT disp_get_id(script_ctx_t *ctx, IDispatch *disp, const WCHAR *name, BSTR name_bstr, DWORD flags, DISPID *id)
{
IDispatchEx *dispex;
jsdisp_t *jsdisp;
BSTR bstr;
HRESULT hres;
jsdisp = iface_to_jsdisp(disp);
if(jsdisp) {
hres = jsdisp_get_id(jsdisp, name, flags, id);
jsdisp_release(jsdisp);
return hres;
}
if(name_bstr) {
bstr = name_bstr;
}else {
bstr = SysAllocString(name);
if(!bstr)
return E_OUTOFMEMORY;
}
*id = 0;
hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
if(SUCCEEDED(hres)) {
hres = IDispatchEx_GetDispID(dispex, bstr, make_grfdex(ctx, flags|fdexNameCaseSensitive), id);
IDispatchEx_Release(dispex);
}else {
TRACE("using IDispatch\n");
hres = IDispatch_GetIDsOfNames(disp, &IID_NULL, &bstr, 1, 0, id);
}
if(name_bstr != bstr)
SysFreeString(bstr);
return hres;
}
static HRESULT disp_cmp(IDispatch *disp1, IDispatch *disp2, BOOL *ret)
{
IObjectIdentity *identity;
IUnknown *unk1, *unk2;
HRESULT hres;
if(disp1 == disp2) {
*ret = TRUE;
return S_OK;
}
if(!disp1 || !disp2) {
*ret = FALSE;
return S_OK;
}
hres = IDispatch_QueryInterface(disp1, &IID_IUnknown, (void**)&unk1);
if(FAILED(hres))
return hres;
hres = IDispatch_QueryInterface(disp2, &IID_IUnknown, (void**)&unk2);
if(FAILED(hres)) {
IUnknown_Release(unk1);
return hres;
}
if(unk1 == unk2) {
*ret = TRUE;
}else {
hres = IUnknown_QueryInterface(unk1, &IID_IObjectIdentity, (void**)&identity);
if(SUCCEEDED(hres)) {
hres = IObjectIdentity_IsEqualObject(identity, unk2);
IObjectIdentity_Release(identity);
*ret = hres == S_OK;
}else {
*ret = FALSE;
}
}
IUnknown_Release(unk1);
IUnknown_Release(unk2);
return S_OK;
}
/* ECMA-262 3rd Edition 11.9.6 */
static HRESULT equal2_values(jsval_t lval, jsval_t rval, BOOL *ret)
{
jsval_type_t type = jsval_type(lval);
TRACE("\n");
if(type != jsval_type(rval)) {
if(is_null_instance(lval))
*ret = is_null_instance(rval);
else
*ret = FALSE;
return S_OK;
}
switch(type) {
case JSV_UNDEFINED:
case JSV_NULL:
*ret = TRUE;
break;
case JSV_OBJECT:
return disp_cmp(get_object(lval), get_object(rval), ret);
case JSV_STRING:
*ret = jsstr_eq(get_string(lval), get_string(rval));
break;
case JSV_NUMBER:
*ret = get_number(lval) == get_number(rval);
break;
case JSV_BOOL:
*ret = !get_bool(lval) == !get_bool(rval);
break;
case JSV_VARIANT:
FIXME("VARIANT not implemented\n");
return E_NOTIMPL;
}
return S_OK;
}
/*
* Transfers local variables from stack to variable object.
* It's slow, so we want to avoid it as much as possible.
*/
static HRESULT detach_variable_object(script_ctx_t *ctx, call_frame_t *frame, BOOL from_release)
{
unsigned i;
HRESULT hres;
if(!frame->base_scope || !frame->base_scope->frame)
return S_OK;
TRACE("detaching %p\n", frame);
assert(frame == frame->base_scope->frame);
assert(frame->variable_obj == frame->base_scope->jsobj);
if(!from_release && !frame->arguments_obj) {
hres = setup_arguments_object(ctx, frame);
if(FAILED(hres))
return hres;
}
frame->base_scope->frame = NULL;
for(i = 0; i < frame->function->locals_cnt; i++) {
hres = jsdisp_propput_name(frame->variable_obj, frame->function->locals[i].name,
ctx->stack[local_off(frame, frame->function->locals[i].ref)]);
if(FAILED(hres))
return hres;
}
return S_OK;
}
static BOOL lookup_global_members(script_ctx_t *ctx, BSTR identifier, exprval_t *ret)
{
named_item_t *item;
DISPID id;
HRESULT hres;
for(item = ctx->named_items; item; item = item->next) {
if(item->flags & SCRIPTITEM_GLOBALMEMBERS) {
hres = disp_get_id(ctx, item->disp, identifier, identifier, 0, &id);
if(SUCCEEDED(hres)) {
if(ret)
exprval_set_disp_ref(ret, item->disp, id);
return TRUE;
}
}
}
return FALSE;
}
static int local_ref_cmp(const void *key, const void *ref)
{
return strcmpW((const WCHAR*)key, ((const local_ref_t*)ref)->name);
}
local_ref_t *lookup_local(const function_code_t *function, const WCHAR *identifier)
{
return bsearch(identifier, function->locals, function->locals_cnt, sizeof(*function->locals), local_ref_cmp);
}
/* ECMA-262 3rd Edition 10.1.4 */
static HRESULT identifier_eval(script_ctx_t *ctx, BSTR identifier, exprval_t *ret)
{
scope_chain_t *scope;
named_item_t *item;
DISPID id = 0;
HRESULT hres;
TRACE("%s\n", debugstr_w(identifier));
if(ctx->call_ctx) {
for(scope = ctx->call_ctx->scope; scope; scope = scope->next) {
if(scope->frame) {
function_code_t *func = scope->frame->function;
local_ref_t *ref = lookup_local(func, identifier);
static const WCHAR argumentsW[] = {'a','r','g','u','m','e','n','t','s',0};
if(ref) {
ret->type = EXPRVAL_STACK_REF;
ret->u.off = local_off(scope->frame, ref->ref);
TRACE("returning ref %d for %d\n", ret->u.off, ref->ref);
return S_OK;
}
if(!strcmpW(identifier, argumentsW)) {
hres = detach_variable_object(ctx, scope->frame, FALSE);
if(FAILED(hres))
return hres;
}
}
if(scope->jsobj)
hres = jsdisp_get_id(scope->jsobj, identifier, fdexNameImplicit, &id);
else
hres = disp_get_id(ctx, scope->obj, identifier, identifier, fdexNameImplicit, &id);
if(SUCCEEDED(hres)) {
exprval_set_disp_ref(ret, scope->obj, id);
return S_OK;
}
}
}
hres = jsdisp_get_id(ctx->global, identifier, 0, &id);
if(SUCCEEDED(hres)) {
exprval_set_disp_ref(ret, to_disp(ctx->global), id);
return S_OK;
}
for(item = ctx->named_items; item; item = item->next) {
if((item->flags & SCRIPTITEM_ISVISIBLE) && !strcmpW(item->name, identifier)) {
if(!item->disp) {
IUnknown *unk;
if(!ctx->site)
break;
hres = IActiveScriptSite_GetItemInfo(ctx->site, identifier,
SCRIPTINFO_IUNKNOWN, &unk, NULL);
if(FAILED(hres)) {
WARN("GetItemInfo failed: %08x\n", hres);
break;
}
hres = IUnknown_QueryInterface(unk, &IID_IDispatch, (void**)&item->disp);
IUnknown_Release(unk);
if(FAILED(hres)) {
WARN("object does not implement IDispatch\n");
break;
}
}
IDispatch_AddRef(item->disp);
ret->type = EXPRVAL_JSVAL;
ret->u.val = jsval_disp(item->disp);
return S_OK;
}
}
if(lookup_global_members(ctx, identifier, ret))
return S_OK;
exprval_set_exception(ret, JS_E_UNDEFINED_VARIABLE);
return S_OK;
}
static inline BSTR get_op_bstr(script_ctx_t *ctx, int i)
{
call_frame_t *frame = ctx->call_ctx;
return frame->bytecode->instrs[frame->ip].u.arg[i].bstr;
}
static inline unsigned get_op_uint(script_ctx_t *ctx, int i)
{
call_frame_t *frame = ctx->call_ctx;
return frame->bytecode->instrs[frame->ip].u.arg[i].uint;
}
static inline unsigned get_op_int(script_ctx_t *ctx, int i)
{
call_frame_t *frame = ctx->call_ctx;
return frame->bytecode->instrs[frame->ip].u.arg[i].lng;
}
static inline jsstr_t *get_op_str(script_ctx_t *ctx, int i)
{
call_frame_t *frame = ctx->call_ctx;
return frame->bytecode->instrs[frame->ip].u.arg[i].str;
}
static inline double get_op_double(script_ctx_t *ctx)
{
call_frame_t *frame = ctx->call_ctx;
return frame->bytecode->instrs[frame->ip].u.dbl;
}
static inline void jmp_next(script_ctx_t *ctx)
{
ctx->call_ctx->ip++;
}
static inline void jmp_abs(script_ctx_t *ctx, unsigned dst)
{
ctx->call_ctx->ip = dst;
}
/* ECMA-262 3rd Edition 12.6.4 */
static HRESULT interp_forin(script_ctx_t *ctx)
{
const HRESULT arg = get_op_uint(ctx, 0);
IDispatch *obj = NULL;
IDispatchEx *dispex;
exprval_t prop_ref;
DISPID id;
BSTR name = NULL;
HRESULT hres;
TRACE("\n");
assert(is_number(stack_top(ctx)));
id = get_number(stack_top(ctx));
if(!stack_topn_exprval(ctx, 1, &prop_ref)) {
FIXME("invalid ref: %08x\n", prop_ref.u.hres);
return E_FAIL;
}
if(is_object_instance(stack_topn(ctx, 3)))
obj = get_object(stack_topn(ctx, 3));
if(obj) {
hres = IDispatch_QueryInterface(obj, &IID_IDispatchEx, (void**)&dispex);
if(SUCCEEDED(hres)) {
hres = IDispatchEx_GetNextDispID(dispex, fdexEnumDefault, id, &id);
if(hres == S_OK)
hres = IDispatchEx_GetMemberName(dispex, id, &name);
IDispatchEx_Release(dispex);
if(FAILED(hres))
return hres;
}else {
TRACE("No IDispatchEx\n");
}
}
if(name) {
jsstr_t *str;
str = jsstr_alloc_len(name, SysStringLen(name));
SysFreeString(name);
if(!str)
return E_OUTOFMEMORY;
stack_pop(ctx);
stack_push(ctx, jsval_number(id)); /* safe, just after pop() */
hres = exprval_propput(ctx, &prop_ref, jsval_string(str));
jsstr_release(str);
if(FAILED(hres))
return hres;
jmp_next(ctx);
}else {
stack_popn(ctx, 4);
jmp_abs(ctx, arg);
}
return S_OK;
}
/* ECMA-262 3rd Edition 12.10 */
static HRESULT interp_push_scope(script_ctx_t *ctx)
{
IDispatch *disp;
jsval_t v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_object(ctx, v, &disp);
jsval_release(v);
if(FAILED(hres))
return hres;
hres = scope_push(ctx->call_ctx->scope, to_jsdisp(disp), disp, &ctx->call_ctx->scope);
IDispatch_Release(disp);
return hres;
}
/* ECMA-262 3rd Edition 12.10 */
static HRESULT interp_pop_scope(script_ctx_t *ctx)
{
TRACE("\n");
scope_pop(&ctx->call_ctx->scope);
return S_OK;
}
/* ECMA-262 3rd Edition 12.13 */
static HRESULT interp_case(script_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
jsval_t v;
BOOL b;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = equal2_values(stack_top(ctx), v, &b);
jsval_release(v);
if(FAILED(hres))
return hres;
if(b) {
stack_popn(ctx, 1);
jmp_abs(ctx, arg);
}else {
jmp_next(ctx);
}
return S_OK;
}
/* ECMA-262 3rd Edition 12.13 */
static HRESULT interp_throw(script_ctx_t *ctx)
{
TRACE("\n");
jsval_release(ctx->ei.val);
ctx->ei.val = stack_pop(ctx);
return DISP_E_EXCEPTION;
}
static HRESULT interp_throw_ref(script_ctx_t *ctx)
{
const HRESULT arg = get_op_uint(ctx, 0);
TRACE("%08x\n", arg);
return throw_reference_error(ctx, arg, NULL);
}
static HRESULT interp_throw_type(script_ctx_t *ctx)
{
const HRESULT hres = get_op_uint(ctx, 0);
jsstr_t *str = get_op_str(ctx, 1);
const WCHAR *ptr;
TRACE("%08x %s\n", hres, debugstr_jsstr(str));
ptr = jsstr_flatten(str);
return ptr ? throw_type_error(ctx, hres, ptr) : E_OUTOFMEMORY;
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT interp_push_except(script_ctx_t *ctx)
{
const unsigned catch_off = get_op_uint(ctx, 0);
const unsigned finally_off = get_op_uint(ctx, 1);
call_frame_t *frame = ctx->call_ctx;
except_frame_t *except;
TRACE("\n");
except = heap_alloc(sizeof(*except));
if(!except)
return E_OUTOFMEMORY;
except->stack_top = ctx->stack_top;
except->scope = frame->scope;
except->catch_off = catch_off;
except->finally_off = finally_off;
except->next = frame->except_frame;
frame->except_frame = except;
return S_OK;
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT interp_pop_except(script_ctx_t *ctx)
{
const unsigned ret_off = get_op_uint(ctx, 0);
call_frame_t *frame = ctx->call_ctx;
except_frame_t *except;
unsigned finally_off;
TRACE("%u\n", ret_off);
except = frame->except_frame;
assert(except != NULL);
finally_off = except->finally_off;
frame->except_frame = except->next;
heap_free(except);
if(finally_off) {
HRESULT hres;
hres = stack_push(ctx, jsval_number(ret_off));
if(FAILED(hres))
return hres;
hres = stack_push(ctx, jsval_bool(TRUE));
if(FAILED(hres))
return hres;
frame->ip = finally_off;
}else {
frame->ip = ret_off;
}
return S_OK;
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT interp_end_finally(script_ctx_t *ctx)
{
call_frame_t *frame = ctx->call_ctx;
jsval_t v;
TRACE("\n");
v = stack_pop(ctx);
assert(is_bool(v));
if(!get_bool(v)) {
TRACE("passing exception\n");
ctx->ei.val = stack_pop(ctx);
return DISP_E_EXCEPTION;
}
v = stack_pop(ctx);
assert(is_number(v));
frame->ip = get_number(v);
return S_OK;
}
static HRESULT interp_enter_catch(script_ctx_t *ctx)
{
const BSTR ident = get_op_bstr(ctx, 0);
jsdisp_t *scope_obj;
jsval_t v;
HRESULT hres;
hres = create_dispex(ctx, NULL, NULL, &scope_obj);
if(FAILED(hres))
return hres;
v = stack_pop(ctx);
hres = jsdisp_propput_name(scope_obj, ident, v);
jsval_release(v);
if(SUCCEEDED(hres))
hres = scope_push(ctx->call_ctx->scope, scope_obj, to_disp(scope_obj), &ctx->call_ctx->scope);
jsdisp_release(scope_obj);
return hres;
}
/* ECMA-262 3rd Edition 13 */
static HRESULT interp_func(script_ctx_t *ctx)
{
unsigned func_idx = get_op_uint(ctx, 0);
call_frame_t *frame = ctx->call_ctx;
jsdisp_t *dispex;
HRESULT hres;
TRACE("%d\n", func_idx);
hres = create_source_function(ctx, frame->bytecode, frame->function->funcs+func_idx,
frame->scope, &dispex);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_obj(dispex));
}
/* ECMA-262 3rd Edition 11.2.1 */
static HRESULT interp_array(script_ctx_t *ctx)
{
jsstr_t *name_str;
const WCHAR *name;
jsval_t v, namev;
IDispatch *obj;
DISPID id;
HRESULT hres;
TRACE("\n");
namev = stack_pop(ctx);
hres = stack_pop_object(ctx, &obj);
if(FAILED(hres)) {
jsval_release(namev);
return hres;
}
hres = to_flat_string(ctx, namev, &name_str, &name);
jsval_release(namev);
if(FAILED(hres)) {
IDispatch_Release(obj);
return hres;
}
hres = disp_get_id(ctx, obj, name, NULL, 0, &id);
jsstr_release(name_str);
if(SUCCEEDED(hres)) {
hres = disp_propget(ctx, obj, id, &v);
}else if(hres == DISP_E_UNKNOWNNAME) {
v = jsval_undefined();
hres = S_OK;
}
IDispatch_Release(obj);
if(FAILED(hres))
return hres;
return stack_push(ctx, v);
}
/* ECMA-262 3rd Edition 11.2.1 */
static HRESULT interp_member(script_ctx_t *ctx)
{
const BSTR arg = get_op_bstr(ctx, 0);
IDispatch *obj;
jsval_t v;
DISPID id;
HRESULT hres;
TRACE("\n");
hres = stack_pop_object(ctx, &obj);
if(FAILED(hres))
return hres;
hres = disp_get_id(ctx, obj, arg, arg, 0, &id);
if(SUCCEEDED(hres)) {
hres = disp_propget(ctx, obj, id, &v);
}else if(hres == DISP_E_UNKNOWNNAME) {
v = jsval_undefined();
hres = S_OK;
}
IDispatch_Release(obj);
if(FAILED(hres))
return hres;
return stack_push(ctx, v);
}
/* ECMA-262 3rd Edition 11.2.1 */
static HRESULT interp_memberid(script_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
jsval_t objv, namev;
const WCHAR *name;
jsstr_t *name_str;
IDispatch *obj;
exprval_t ref;
DISPID id;
HRESULT hres;
TRACE("%x\n", arg);
namev = stack_pop(ctx);
objv = stack_pop(ctx);
hres = to_object(ctx, objv, &obj);
jsval_release(objv);
if(SUCCEEDED(hres)) {
hres = to_flat_string(ctx, namev, &name_str, &name);
if(FAILED(hres))
IDispatch_Release(obj);
}
jsval_release(namev);
if(FAILED(hres))
return hres;
hres = disp_get_id(ctx, obj, name, NULL, arg, &id);
jsstr_release(name_str);
if(SUCCEEDED(hres)) {
ref.type = EXPRVAL_IDREF;
ref.u.idref.disp = obj;
ref.u.idref.id = id;
}else {
IDispatch_Release(obj);
if(hres == DISP_E_UNKNOWNNAME && !(arg & fdexNameEnsure)) {
exprval_set_exception(&ref, JS_E_INVALID_PROPERTY);
hres = S_OK;
}else {
ERR("failed %08x\n", hres);
return hres;
}
}
return stack_push_exprval(ctx, &ref);
}
/* ECMA-262 3rd Edition 11.2.1 */
static HRESULT interp_refval(script_ctx_t *ctx)
{
exprval_t ref;
jsval_t v;
HRESULT hres;
TRACE("\n");
if(!stack_topn_exprval(ctx, 0, &ref))
return throw_reference_error(ctx, JS_E_ILLEGAL_ASSIGN, NULL);
hres = exprval_propget(ctx, &ref, &v);
if(FAILED(hres))
return hres;
return stack_push(ctx, v);
}
/* ECMA-262 3rd Edition 11.2.2 */
static HRESULT interp_new(script_ctx_t *ctx)
{
const unsigned argc = get_op_uint(ctx, 0);
call_frame_t *frame = ctx->call_ctx;
jsval_t constr;
TRACE("%d\n", argc);
constr = stack_topn(ctx, argc);
/* NOTE: Should use to_object here */
if(is_null(constr))
return throw_type_error(ctx, JS_E_OBJECT_EXPECTED, NULL);
else if(!is_object_instance(constr))
return throw_type_error(ctx, JS_E_INVALID_ACTION, NULL);
else if(!get_object(constr))
return throw_type_error(ctx, JS_E_INVALID_PROPERTY, NULL);
clear_ret(frame);
return disp_call_value(ctx, get_object(constr), NULL, DISPATCH_CONSTRUCT | DISPATCH_JSCRIPT_CALLEREXECSSOURCE,
argc, stack_args(ctx, argc), &frame->ret);
}
/* ECMA-262 3rd Edition 11.2.3 */
static HRESULT interp_call(script_ctx_t *ctx)
{
const unsigned argn = get_op_uint(ctx, 0);
const int do_ret = get_op_int(ctx, 1);
call_frame_t *frame = ctx->call_ctx;
jsval_t obj;
TRACE("%d %d\n", argn, do_ret);
obj = stack_topn(ctx, argn);
if(!is_object_instance(obj))
return throw_type_error(ctx, JS_E_INVALID_PROPERTY, NULL);
clear_ret(frame);
return disp_call_value(ctx, get_object(obj), NULL, DISPATCH_METHOD | DISPATCH_JSCRIPT_CALLEREXECSSOURCE,
argn, stack_args(ctx, argn), do_ret ? &frame->ret : NULL);
}
/* ECMA-262 3rd Edition 11.2.3 */
static HRESULT interp_call_member(script_ctx_t *ctx)
{
const unsigned argn = get_op_uint(ctx, 0);
const int do_ret = get_op_int(ctx, 1);
call_frame_t *frame = ctx->call_ctx;
exprval_t ref;
TRACE("%d %d\n", argn, do_ret);
if(!stack_topn_exprval(ctx, argn, &ref))
return throw_type_error(ctx, ref.u.hres, NULL);
clear_ret(frame);
return exprval_call(ctx, &ref, DISPATCH_METHOD | DISPATCH_JSCRIPT_CALLEREXECSSOURCE,
argn, stack_args(ctx, argn), do_ret ? &frame->ret : NULL);
}
/* ECMA-262 3rd Edition 11.1.1 */
static HRESULT interp_this(script_ctx_t *ctx)
{
call_frame_t *frame = ctx->call_ctx;
TRACE("\n");
IDispatch_AddRef(frame->this_obj);
return stack_push(ctx, jsval_disp(frame->this_obj));
}
static HRESULT interp_identifier_ref(script_ctx_t *ctx, BSTR identifier, unsigned flags)
{
exprval_t exprval;
HRESULT hres;
hres = identifier_eval(ctx, identifier, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type == EXPRVAL_INVALID && (flags & fdexNameEnsure)) {
DISPID id;
hres = jsdisp_get_id(ctx->global, identifier, fdexNameEnsure, &id);
if(FAILED(hres))
return hres;
exprval_set_disp_ref(&exprval, to_disp(ctx->global), id);
}
if(exprval.type == EXPRVAL_JSVAL || exprval.type == EXPRVAL_INVALID) {
WARN("invalid ref\n");
exprval_release(&exprval);
exprval_set_exception(&exprval, JS_E_OBJECT_EXPECTED);
}
return stack_push_exprval(ctx, &exprval);
}
static HRESULT identifier_value(script_ctx_t *ctx, BSTR identifier)
{
exprval_t exprval;
jsval_t v;
HRESULT hres;
hres = identifier_eval(ctx, identifier, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type == EXPRVAL_INVALID)
return throw_type_error(ctx, exprval.u.hres, identifier);
hres = exprval_to_value(ctx, &exprval, &v);
if(FAILED(hres))
return hres;
return stack_push(ctx, v);
}
static HRESULT interp_local_ref(script_ctx_t *ctx)
{
const int arg = get_op_int(ctx, 0);
const unsigned flags = get_op_uint(ctx, 1);
call_frame_t *frame = ctx->call_ctx;
exprval_t ref;
TRACE("%d\n", arg);
if(!frame->base_scope || !frame->base_scope->frame)
return interp_identifier_ref(ctx, local_name(frame, arg), flags);
ref.type = EXPRVAL_STACK_REF;
ref.u.off = local_off(frame, arg);
return stack_push_exprval(ctx, &ref);
}
static HRESULT interp_local(script_ctx_t *ctx)
{
const int arg = get_op_int(ctx, 0);
call_frame_t *frame = ctx->call_ctx;
jsval_t copy;
HRESULT hres;
TRACE("%d: %s\n", arg, debugstr_w(local_name(frame, arg)));
if(!frame->base_scope || !frame->base_scope->frame)
return identifier_value(ctx, local_name(frame, arg));
hres = jsval_copy(ctx->stack[local_off(frame, arg)], &copy);
if(FAILED(hres))
return hres;
return stack_push(ctx, copy);
}
/* ECMA-262 3rd Edition 10.1.4 */
static HRESULT interp_ident(script_ctx_t *ctx)
{
const BSTR arg = get_op_bstr(ctx, 0);
TRACE("%s\n", debugstr_w(arg));
return identifier_value(ctx, arg);
}
/* ECMA-262 3rd Edition 10.1.4 */
static HRESULT interp_identid(script_ctx_t *ctx)
{
const BSTR arg = get_op_bstr(ctx, 0);
const unsigned flags = get_op_uint(ctx, 1);
TRACE("%s %x\n", debugstr_w(arg), flags);
return interp_identifier_ref(ctx, arg, flags);
}
/* ECMA-262 3rd Edition 7.8.1 */
static HRESULT interp_null(script_ctx_t *ctx)
{
TRACE("\n");
return stack_push(ctx, jsval_null());
}
/* ECMA-262 3rd Edition 7.8.2 */
static HRESULT interp_bool(script_ctx_t *ctx)
{
const int arg = get_op_int(ctx, 0);
TRACE("%s\n", arg ? "true" : "false");
return stack_push(ctx, jsval_bool(arg));
}
/* ECMA-262 3rd Edition 7.8.3 */
static HRESULT interp_int(script_ctx_t *ctx)
{
const int arg = get_op_int(ctx, 0);
TRACE("%d\n", arg);
return stack_push(ctx, jsval_number(arg));
}
/* ECMA-262 3rd Edition 7.8.3 */
static HRESULT interp_double(script_ctx_t *ctx)
{
const double arg = get_op_double(ctx);
TRACE("%lf\n", arg);
return stack_push(ctx, jsval_number(arg));
}
/* ECMA-262 3rd Edition 7.8.4 */
static HRESULT interp_str(script_ctx_t *ctx)
{
jsstr_t *str = get_op_str(ctx, 0);
TRACE("%s\n", debugstr_jsstr(str));
return stack_push(ctx, jsval_string(jsstr_addref(str)));
}
/* ECMA-262 3rd Edition 7.8 */
static HRESULT interp_regexp(script_ctx_t *ctx)
{
jsstr_t *source = get_op_str(ctx, 0);
const unsigned flags = get_op_uint(ctx, 1);
jsdisp_t *regexp;
HRESULT hres;
TRACE("%s %x\n", debugstr_jsstr(source), flags);
hres = create_regexp(ctx, source, flags, &regexp);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_obj(regexp));
}
/* ECMA-262 3rd Edition 11.1.4 */
static HRESULT interp_carray(script_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
jsdisp_t *array;
jsval_t val;
unsigned i;
HRESULT hres;
TRACE("%u\n", arg);
hres = create_array(ctx, arg, &array);
if(FAILED(hres))
return hres;
i = arg;
while(i--) {
val = stack_pop(ctx);
hres = jsdisp_propput_idx(array, i, val);
jsval_release(val);
if(FAILED(hres)) {
jsdisp_release(array);
return hres;
}
}
return stack_push(ctx, jsval_obj(array));
}
/* ECMA-262 3rd Edition 11.1.5 */
static HRESULT interp_new_obj(script_ctx_t *ctx)
{
jsdisp_t *obj;
HRESULT hres;
TRACE("\n");
hres = create_object(ctx, NULL, &obj);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_obj(obj));
}
/* ECMA-262 3rd Edition 11.1.5 */
static HRESULT interp_obj_prop(script_ctx_t *ctx)
{
const BSTR name = get_op_bstr(ctx, 0);
jsdisp_t *obj;
jsval_t val;
HRESULT hres;
TRACE("%s\n", debugstr_w(name));
val = stack_pop(ctx);
assert(is_object_instance(stack_top(ctx)));
obj = as_jsdisp(get_object(stack_top(ctx)));
hres = jsdisp_propput_name(obj, name, val);
jsval_release(val);
return hres;
}
/* ECMA-262 3rd Edition 11.11 */
static HRESULT interp_cnd_nz(script_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
BOOL b;
HRESULT hres;
TRACE("\n");
hres = to_boolean(stack_top(ctx), &b);
if(FAILED(hres))
return hres;
if(b) {
jmp_abs(ctx, arg);
}else {
stack_popn(ctx, 1);
jmp_next(ctx);
}
return S_OK;
}
/* ECMA-262 3rd Edition 11.11 */
static HRESULT interp_cnd_z(script_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
BOOL b;
HRESULT hres;
TRACE("\n");
hres = to_boolean(stack_top(ctx), &b);
if(FAILED(hres))
return hres;
if(b) {
stack_popn(ctx, 1);
jmp_next(ctx);
}else {
jmp_abs(ctx, arg);
}
return S_OK;
}
/* ECMA-262 3rd Edition 11.10 */
static HRESULT interp_or(script_ctx_t *ctx)
{
INT l, r;
HRESULT hres;
TRACE("\n");
hres = stack_pop_int(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_int(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(l|r));
}
/* ECMA-262 3rd Edition 11.10 */
static HRESULT interp_xor(script_ctx_t *ctx)
{
INT l, r;
HRESULT hres;
TRACE("\n");
hres = stack_pop_int(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_int(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(l^r));
}
/* ECMA-262 3rd Edition 11.10 */
static HRESULT interp_and(script_ctx_t *ctx)
{
INT l, r;
HRESULT hres;
TRACE("\n");
hres = stack_pop_int(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_int(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(l&r));
}
/* ECMA-262 3rd Edition 11.8.6 */
static HRESULT interp_instanceof(script_ctx_t *ctx)
{
jsdisp_t *obj, *iter, *tmp = NULL;
jsval_t prot, v;
BOOL ret = FALSE;
HRESULT hres;
static const WCHAR prototypeW[] = {'p','r','o','t','o','t', 'y', 'p','e',0};
v = stack_pop(ctx);
if(!is_object_instance(v) || !get_object(v)) {
jsval_release(v);
return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
}
obj = iface_to_jsdisp(get_object(v));
IDispatch_Release(get_object(v));
if(!obj) {
FIXME("non-jsdisp objects not supported\n");
return E_FAIL;
}
if(is_class(obj, JSCLASS_FUNCTION)) {
hres = jsdisp_propget_name(obj, prototypeW, &prot);
}else {
hres = throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL);
}
jsdisp_release(obj);
if(FAILED(hres))
return hres;
v = stack_pop(ctx);
if(is_object_instance(prot)) {
if(is_object_instance(v))
tmp = iface_to_jsdisp(get_object(v));
for(iter = tmp; !ret && iter; iter = iter->prototype) {
hres = disp_cmp(get_object(prot), to_disp(iter), &ret);
if(FAILED(hres))
break;
}
if(tmp)
jsdisp_release(tmp);
}else {
FIXME("prototype is not an object\n");
hres = E_FAIL;
}
jsval_release(prot);
jsval_release(v);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(ret));
}
/* ECMA-262 3rd Edition 11.8.7 */
static HRESULT interp_in(script_ctx_t *ctx)
{
const WCHAR *str;
jsstr_t *jsstr;
jsval_t obj, v;
DISPID id = 0;
BOOL ret;
HRESULT hres;
TRACE("\n");
obj = stack_pop(ctx);
if(!is_object_instance(obj) || !get_object(obj)) {
jsval_release(obj);
return throw_type_error(ctx, JS_E_OBJECT_EXPECTED, NULL);
}
v = stack_pop(ctx);
hres = to_flat_string(ctx, v, &jsstr, &str);
jsval_release(v);
if(FAILED(hres)) {
IDispatch_Release(get_object(obj));
return hres;
}
hres = disp_get_id(ctx, get_object(obj), str, NULL, 0, &id);
IDispatch_Release(get_object(obj));
jsstr_release(jsstr);
if(SUCCEEDED(hres))
ret = TRUE;
else if(hres == DISP_E_UNKNOWNNAME)
ret = FALSE;
else
return hres;
return stack_push(ctx, jsval_bool(ret));
}
/* ECMA-262 3rd Edition 11.6.1 */
static HRESULT add_eval(script_ctx_t *ctx, jsval_t lval, jsval_t rval, jsval_t *ret)
{
jsval_t r, l;
HRESULT hres;
hres = to_primitive(ctx, lval, &l, NO_HINT);
if(FAILED(hres))
return hres;
hres = to_primitive(ctx, rval, &r, NO_HINT);
if(FAILED(hres)) {
jsval_release(l);
return hres;
}
if(is_string(l) || is_string(r)) {
jsstr_t *lstr, *rstr = NULL;
hres = to_string(ctx, l, &lstr);
if(SUCCEEDED(hres))
hres = to_string(ctx, r, &rstr);
if(SUCCEEDED(hres)) {
jsstr_t *ret_str;
ret_str = jsstr_concat(lstr, rstr);
if(ret_str)
*ret = jsval_string(ret_str);
else
hres = E_OUTOFMEMORY;
}
jsstr_release(lstr);
if(rstr)
jsstr_release(rstr);
}else {
double nl, nr;
hres = to_number(ctx, l, &nl);
if(SUCCEEDED(hres)) {
hres = to_number(ctx, r, &nr);
if(SUCCEEDED(hres))
*ret = jsval_number(nl+nr);
}
}
jsval_release(r);
jsval_release(l);
return hres;
}
/* ECMA-262 3rd Edition 11.6.1 */
static HRESULT interp_add(script_ctx_t *ctx)
{
jsval_t l, r, ret;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s + %s\n", debugstr_jsval(l), debugstr_jsval(r));
hres = add_eval(ctx, l, r, &ret);
jsval_release(l);
jsval_release(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, ret);
}
/* ECMA-262 3rd Edition 11.6.2 */
static HRESULT interp_sub(script_ctx_t *ctx)
{
double l, r;
HRESULT hres;
TRACE("\n");
hres = stack_pop_number(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_number(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(l-r));
}
/* ECMA-262 3rd Edition 11.5.1 */
static HRESULT interp_mul(script_ctx_t *ctx)
{
double l, r;
HRESULT hres;
TRACE("\n");
hres = stack_pop_number(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_number(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(l*r));
}
/* ECMA-262 3rd Edition 11.5.2 */
static HRESULT interp_div(script_ctx_t *ctx)
{
double l, r;
HRESULT hres;
TRACE("\n");
hres = stack_pop_number(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_number(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(l/r));
}
/* ECMA-262 3rd Edition 11.5.3 */
static HRESULT interp_mod(script_ctx_t *ctx)
{
double l, r;
HRESULT hres;
TRACE("\n");
hres = stack_pop_number(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_number(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(fmod(l, r)));
}
/* ECMA-262 3rd Edition 11.4.2 */
static HRESULT interp_delete(script_ctx_t *ctx)
{
jsval_t objv, namev;
IDispatch *obj;
jsstr_t *name;
BOOL ret;
HRESULT hres;
TRACE("\n");
namev = stack_pop(ctx);
objv = stack_pop(ctx);
hres = to_object(ctx, objv, &obj);
jsval_release(objv);
if(FAILED(hres)) {
jsval_release(namev);
return hres;
}
hres = to_string(ctx, namev, &name);
jsval_release(namev);
if(FAILED(hres)) {
IDispatch_Release(obj);
return hres;
}
hres = disp_delete_name(ctx, obj, name, &ret);
IDispatch_Release(obj);
jsstr_release(name);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(ret));
}
/* ECMA-262 3rd Edition 11.4.2 */
static HRESULT interp_delete_ident(script_ctx_t *ctx)
{
const BSTR arg = get_op_bstr(ctx, 0);
exprval_t exprval;
BOOL ret;
HRESULT hres;
TRACE("%s\n", debugstr_w(arg));
hres = identifier_eval(ctx, arg, &exprval);
if(FAILED(hres))
return hres;
switch(exprval.type) {
case EXPRVAL_STACK_REF:
ret = FALSE;
break;
case EXPRVAL_IDREF:
hres = disp_delete(exprval.u.idref.disp, exprval.u.idref.id, &ret);
IDispatch_Release(exprval.u.idref.disp);
if(FAILED(hres))
return hres;
break;
case EXPRVAL_INVALID:
ret = TRUE;
break;
default:
FIXME("Unsupported exprval\n");
exprval_release(&exprval);
return E_NOTIMPL;
}
return stack_push(ctx, jsval_bool(ret));
}
/* ECMA-262 3rd Edition 11.4.2 */
static HRESULT interp_void(script_ctx_t *ctx)
{
TRACE("\n");
stack_popn(ctx, 1);
return stack_push(ctx, jsval_undefined());
}
/* ECMA-262 3rd Edition 11.4.3 */
static HRESULT typeof_string(jsval_t v, const WCHAR **ret)
{
switch(jsval_type(v)) {
case JSV_UNDEFINED:
*ret = undefinedW;
break;
case JSV_NULL:
*ret = objectW;
break;
case JSV_OBJECT: {
jsdisp_t *dispex;
if(get_object(v) && (dispex = iface_to_jsdisp(get_object(v)))) {
*ret = is_class(dispex, JSCLASS_FUNCTION) ? functionW : objectW;
jsdisp_release(dispex);
}else {
*ret = objectW;
}
break;
}
case JSV_STRING:
*ret = stringW;
break;
case JSV_NUMBER:
*ret = numberW;
break;
case JSV_BOOL:
*ret = booleanW;
break;
case JSV_VARIANT:
FIXME("unhandled variant %s\n", debugstr_variant(get_variant(v)));
return E_NOTIMPL;
}
return S_OK;
}
/* ECMA-262 3rd Edition 11.4.3 */
static HRESULT interp_typeofid(script_ctx_t *ctx)
{
const WCHAR *ret;
exprval_t ref;
jsval_t v;
HRESULT hres;
TRACE("\n");
if(!stack_pop_exprval(ctx, &ref))
return stack_push(ctx, jsval_string(jsstr_undefined()));
hres = exprval_propget(ctx, &ref, &v);
exprval_release(&ref);
if(FAILED(hres))
return stack_push_string(ctx, unknownW);
hres = typeof_string(v, &ret);
jsval_release(v);
if(FAILED(hres))
return hres;
return stack_push_string(ctx, ret);
}
/* ECMA-262 3rd Edition 11.4.3 */
static HRESULT interp_typeofident(script_ctx_t *ctx)
{
const BSTR arg = get_op_bstr(ctx, 0);
exprval_t exprval;
const WCHAR *ret;
jsval_t v;
HRESULT hres;
TRACE("%s\n", debugstr_w(arg));
hres = identifier_eval(ctx, arg, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type == EXPRVAL_INVALID)
return stack_push(ctx, jsval_string(jsstr_undefined()));
hres = exprval_to_value(ctx, &exprval, &v);
if(FAILED(hres))
return hres;
hres = typeof_string(v, &ret);
jsval_release(v);
if(FAILED(hres))
return hres;
return stack_push_string(ctx, ret);
}
/* ECMA-262 3rd Edition 11.4.3 */
static HRESULT interp_typeof(script_ctx_t *ctx)
{
const WCHAR *ret;
jsval_t v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = typeof_string(v, &ret);
jsval_release(v);
if(FAILED(hres))
return hres;
return stack_push_string(ctx, ret);
}
/* ECMA-262 3rd Edition 11.4.7 */
static HRESULT interp_minus(script_ctx_t *ctx)
{
double n;
HRESULT hres;
TRACE("\n");
hres = stack_pop_number(ctx, &n);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(-n));
}
/* ECMA-262 3rd Edition 11.4.6 */
static HRESULT interp_tonum(script_ctx_t *ctx)
{
jsval_t v;
double n;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_number(ctx, v, &n);
jsval_release(v);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(n));
}
/* ECMA-262 3rd Edition 11.3.1 */
static HRESULT interp_postinc(script_ctx_t *ctx)
{
const int arg = get_op_int(ctx, 0);
exprval_t ref;
jsval_t v;
HRESULT hres;
TRACE("%d\n", arg);
if(!stack_pop_exprval(ctx, &ref))
return throw_type_error(ctx, JS_E_OBJECT_EXPECTED, NULL);
hres = exprval_propget(ctx, &ref, &v);
if(SUCCEEDED(hres)) {
double n;
hres = to_number(ctx, v, &n);
if(SUCCEEDED(hres))
hres = exprval_propput(ctx, &ref, jsval_number(n+(double)arg));
if(FAILED(hres))
jsval_release(v);
}
exprval_release(&ref);
if(FAILED(hres))
return hres;
return stack_push(ctx, v);
}
/* ECMA-262 3rd Edition 11.4.4, 11.4.5 */
static HRESULT interp_preinc(script_ctx_t *ctx)
{
const int arg = get_op_int(ctx, 0);
exprval_t ref;
double ret;
jsval_t v;
HRESULT hres;
TRACE("%d\n", arg);
if(!stack_pop_exprval(ctx, &ref))
return throw_type_error(ctx, JS_E_OBJECT_EXPECTED, NULL);
hres = exprval_propget(ctx, &ref, &v);
if(SUCCEEDED(hres)) {
double n;
hres = to_number(ctx, v, &n);
jsval_release(v);
if(SUCCEEDED(hres)) {
ret = n+(double)arg;
hres = exprval_propput(ctx, &ref, jsval_number(ret));
}
}
exprval_release(&ref);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(ret));
}
/* ECMA-262 3rd Edition 11.9.3 */
static HRESULT equal_values(script_ctx_t *ctx, jsval_t lval, jsval_t rval, BOOL *ret)
{
if(jsval_type(lval) == jsval_type(rval) || (is_number(lval) && is_number(rval)))
return equal2_values(lval, rval, ret);
/* FIXME: NULL disps should be handled in more general way */
if(is_object_instance(lval) && !get_object(lval))
return equal_values(ctx, jsval_null(), rval, ret);
if(is_object_instance(rval) && !get_object(rval))
return equal_values(ctx, lval, jsval_null(), ret);
if((is_null(lval) && is_undefined(rval)) || (is_undefined(lval) && is_null(rval))) {
*ret = TRUE;
return S_OK;
}
if(is_string(lval) && is_number(rval)) {
double n;
HRESULT hres;
hres = to_number(ctx, lval, &n);
if(FAILED(hres))
return hres;
/* FIXME: optimize */
return equal_values(ctx, jsval_number(n), rval, ret);
}
if(is_string(rval) && is_number(lval)) {
double n;
HRESULT hres;
hres = to_number(ctx, rval, &n);
if(FAILED(hres))
return hres;
/* FIXME: optimize */
return equal_values(ctx, lval, jsval_number(n), ret);
}
if(is_bool(rval))
return equal_values(ctx, lval, jsval_number(get_bool(rval) ? 1 : 0), ret);
if(is_bool(lval))
return equal_values(ctx, jsval_number(get_bool(lval) ? 1 : 0), rval, ret);
if(is_object_instance(rval) && (is_string(lval) || is_number(lval))) {
jsval_t prim;
HRESULT hres;
hres = to_primitive(ctx, rval, &prim, NO_HINT);
if(FAILED(hres))
return hres;
hres = equal_values(ctx, lval, prim, ret);
jsval_release(prim);
return hres;
}
if(is_object_instance(lval) && (is_string(rval) || is_number(rval))) {
jsval_t prim;
HRESULT hres;
hres = to_primitive(ctx, lval, &prim, NO_HINT);
if(FAILED(hres))
return hres;
hres = equal_values(ctx, prim, rval, ret);
jsval_release(prim);
return hres;
}
*ret = FALSE;
return S_OK;
}
/* ECMA-262 3rd Edition 11.9.1 */
static HRESULT interp_eq(script_ctx_t *ctx)
{
jsval_t l, r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s == %s\n", debugstr_jsval(l), debugstr_jsval(r));
hres = equal_values(ctx, l, r, &b);
jsval_release(l);
jsval_release(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(b));
}
/* ECMA-262 3rd Edition 11.9.2 */
static HRESULT interp_neq(script_ctx_t *ctx)
{
jsval_t l, r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s != %s\n", debugstr_jsval(l), debugstr_jsval(r));
hres = equal_values(ctx, l, r, &b);
jsval_release(l);
jsval_release(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(!b));
}
/* ECMA-262 3rd Edition 11.9.4 */
static HRESULT interp_eq2(script_ctx_t *ctx)
{
jsval_t l, r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s === %s\n", debugstr_jsval(l), debugstr_jsval(r));
hres = equal2_values(r, l, &b);
jsval_release(l);
jsval_release(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(b));
}
/* ECMA-262 3rd Edition 11.9.5 */
static HRESULT interp_neq2(script_ctx_t *ctx)
{
jsval_t l, r;
BOOL b;
HRESULT hres;
TRACE("\n");
r = stack_pop(ctx);
l = stack_pop(ctx);
hres = equal2_values(r, l, &b);
jsval_release(l);
jsval_release(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(!b));
}
/* ECMA-262 3rd Edition 11.8.5 */
static HRESULT less_eval(script_ctx_t *ctx, jsval_t lval, jsval_t rval, BOOL greater, BOOL *ret)
{
double ln, rn;
jsval_t l, r;
HRESULT hres;
hres = to_primitive(ctx, lval, &l, NO_HINT);
if(FAILED(hres))
return hres;
hres = to_primitive(ctx, rval, &r, NO_HINT);
if(FAILED(hres)) {
jsval_release(l);
return hres;
}
if(is_string(l) && is_string(r)) {
*ret = (jsstr_cmp(get_string(l), get_string(r)) < 0) ^ greater;
jsstr_release(get_string(l));
jsstr_release(get_string(r));
return S_OK;
}
hres = to_number(ctx, l, &ln);
jsval_release(l);
if(SUCCEEDED(hres))
hres = to_number(ctx, r, &rn);
jsval_release(r);
if(FAILED(hres))
return hres;
*ret = !isnan(ln) && !isnan(rn) && ((ln < rn) ^ greater);
return S_OK;
}
/* ECMA-262 3rd Edition 11.8.1 */
static HRESULT interp_lt(script_ctx_t *ctx)
{
jsval_t l, r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s < %s\n", debugstr_jsval(l), debugstr_jsval(r));
hres = less_eval(ctx, l, r, FALSE, &b);
jsval_release(l);
jsval_release(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(b));
}
/* ECMA-262 3rd Edition 11.8.1 */
static HRESULT interp_lteq(script_ctx_t *ctx)
{
jsval_t l, r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s <= %s\n", debugstr_jsval(l), debugstr_jsval(r));
hres = less_eval(ctx, r, l, TRUE, &b);
jsval_release(l);
jsval_release(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(b));
}
/* ECMA-262 3rd Edition 11.8.2 */
static HRESULT interp_gt(script_ctx_t *ctx)
{
jsval_t l, r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s > %s\n", debugstr_jsval(l), debugstr_jsval(r));
hres = less_eval(ctx, r, l, FALSE, &b);
jsval_release(l);
jsval_release(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(b));
}
/* ECMA-262 3rd Edition 11.8.4 */
static HRESULT interp_gteq(script_ctx_t *ctx)
{
jsval_t l, r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s >= %s\n", debugstr_jsval(l), debugstr_jsval(r));
hres = less_eval(ctx, l, r, TRUE, &b);
jsval_release(l);
jsval_release(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(b));
}
/* ECMA-262 3rd Edition 11.4.8 */
static HRESULT interp_bneg(script_ctx_t *ctx)
{
jsval_t v;
INT i;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_int32(ctx, v, &i);
jsval_release(v);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(~i));
}
/* ECMA-262 3rd Edition 11.4.9 */
static HRESULT interp_neg(script_ctx_t *ctx)
{
jsval_t v;
BOOL b;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_boolean(v, &b);
jsval_release(v);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_bool(!b));
}
/* ECMA-262 3rd Edition 11.7.1 */
static HRESULT interp_lshift(script_ctx_t *ctx)
{
DWORD r;
INT l;
HRESULT hres;
hres = stack_pop_uint(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_int(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(l << (r&0x1f)));
}
/* ECMA-262 3rd Edition 11.7.2 */
static HRESULT interp_rshift(script_ctx_t *ctx)
{
DWORD r;
INT l;
HRESULT hres;
hres = stack_pop_uint(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_int(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(l >> (r&0x1f)));
}
/* ECMA-262 3rd Edition 11.7.3 */
static HRESULT interp_rshift2(script_ctx_t *ctx)
{
DWORD r, l;
HRESULT hres;
hres = stack_pop_uint(ctx, &r);
if(FAILED(hres))
return hres;
hres = stack_pop_uint(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(l >> (r&0x1f)));
}
/* ECMA-262 3rd Edition 11.13.1 */
static HRESULT interp_assign(script_ctx_t *ctx)
{
exprval_t ref;
jsval_t v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
if(!stack_pop_exprval(ctx, &ref)) {
jsval_release(v);
return throw_reference_error(ctx, JS_E_ILLEGAL_ASSIGN, NULL);
}
hres = exprval_propput(ctx, &ref, v);
exprval_release(&ref);
if(FAILED(hres)) {
jsval_release(v);
return hres;
}
return stack_push(ctx, v);
}
/* JScript extension */
static HRESULT interp_assign_call(script_ctx_t *ctx)
{
const unsigned argc = get_op_uint(ctx, 0);
exprval_t ref;
jsval_t v;
HRESULT hres;
TRACE("%u\n", argc);
if(!stack_topn_exprval(ctx, argc+1, &ref))
return throw_reference_error(ctx, JS_E_ILLEGAL_ASSIGN, NULL);
hres = exprval_call(ctx, &ref, DISPATCH_PROPERTYPUT, argc+1, stack_args(ctx, argc+1), NULL);
if(FAILED(hres))
return hres;
v = stack_pop(ctx);
stack_popn(ctx, argc+2);
return stack_push(ctx, v);
}
static HRESULT interp_undefined(script_ctx_t *ctx)
{
TRACE("\n");
return stack_push(ctx, jsval_undefined());
}
static HRESULT interp_jmp(script_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
TRACE("%u\n", arg);
jmp_abs(ctx, arg);
return S_OK;
}
static HRESULT interp_jmp_z(script_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
BOOL b;
jsval_t v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_boolean(v, &b);
jsval_release(v);
if(FAILED(hres))
return hres;
if(b)
jmp_next(ctx);
else
jmp_abs(ctx, arg);
return S_OK;
}
static HRESULT interp_pop(script_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
TRACE("%u\n", arg);
stack_popn(ctx, arg);
return S_OK;
}
static HRESULT interp_ret(script_ctx_t *ctx)
{
const unsigned clear_ret = get_op_uint(ctx, 0);
call_frame_t *frame = ctx->call_ctx;
TRACE("\n");
if(clear_ret)
jsval_release(steal_ret(frame));
if((frame->flags & EXEC_CONSTRUCTOR) && !is_object_instance(frame->ret)) {
jsval_release(frame->ret);
IDispatch_AddRef(frame->this_obj);
frame->ret = jsval_disp(frame->this_obj);
}
jmp_abs(ctx, -1);
return S_OK;
}
static HRESULT interp_setret(script_ctx_t *ctx)
{
call_frame_t *frame = ctx->call_ctx;
TRACE("\n");
jsval_release(frame->ret);
frame->ret = stack_pop(ctx);
return S_OK;
}
static HRESULT interp_push_ret(script_ctx_t *ctx)
{
call_frame_t *frame = ctx->call_ctx;
HRESULT hres;
TRACE("\n");
hres = stack_push(ctx, frame->ret);
if(SUCCEEDED(hres))
frame->ret = jsval_undefined();
return hres;
}
typedef HRESULT (*op_func_t)(script_ctx_t*);
static const op_func_t op_funcs[] = {
#define X(x,a,b,c) interp_##x,
OP_LIST
#undef X
};
static const unsigned op_move[] = {
#define X(a,x,b,c) x,
OP_LIST
#undef X
};
static void pop_call_frame(script_ctx_t *ctx)
{
call_frame_t *frame = ctx->call_ctx;
frame->stack_base -= frame->pop_locals + frame->pop_variables;
assert(frame->scope == frame->base_scope);
/* If current scope will be kept alive, we need to transfer local variables to its variable object. */
if(frame->scope && frame->scope->ref > 1) {
HRESULT hres = detach_variable_object(ctx, frame, TRUE);
if(FAILED(hres))
ERR("Failed to detach variable object: %08x\n", hres);
}
if(frame->arguments_obj)
detach_arguments_object(frame->arguments_obj);
if(frame->scope)
scope_release(frame->scope);
if(frame->pop_variables)
stack_popn(ctx, frame->pop_variables);
stack_popn(ctx, frame->pop_locals);
ctx->call_ctx = frame->prev_frame;
if(frame->function_instance)
jsdisp_release(frame->function_instance);
if(frame->variable_obj)
jsdisp_release(frame->variable_obj);
if(frame->this_obj)
IDispatch_Release(frame->this_obj);
jsval_release(frame->ret);
release_bytecode(frame->bytecode);
heap_free(frame);
}
static void print_backtrace(script_ctx_t *ctx)
{
unsigned depth = 0, i;
call_frame_t *frame;
for(frame = ctx->call_ctx; frame; frame = frame->prev_frame) {
WARN("%u\t", depth);
depth++;
if(frame->this_obj && frame->this_obj != to_disp(ctx->global) && frame->this_obj != ctx->host_global)
WARN("%p->", frame->this_obj);
WARN("%s(", frame->function->name ? debugstr_w(frame->function->name) : "[unnamed]");
if(frame->base_scope && frame->base_scope->frame) {
for(i=0; i < frame->argc; i++) {
if(i < frame->function->param_cnt)
WARN("%s%s=%s", i ? ", " : "", debugstr_w(frame->function->params[i]),
debugstr_jsval(ctx->stack[local_off(frame, -i-1)]));
else
WARN("%s%s", i ? ", " : "", debugstr_jsval(ctx->stack[local_off(frame, -i-1)]));
}
}else {
WARN("[detached frame]");
}
WARN(")\n");
if(!(frame->flags & EXEC_RETURN_TO_INTERP)) {
WARN("%u\t[native code]\n", depth);
depth++;
}
}
}
static HRESULT unwind_exception(script_ctx_t *ctx, HRESULT exception_hres)
{
except_frame_t *except_frame;
call_frame_t *frame;
jsval_t except_val;
unsigned catch_off;
HRESULT hres;
if(WARN_ON(jscript)) {
jsdisp_t *error_obj;
jsval_t msg;
static const WCHAR messageW[] = {'m','e','s','s','a','g','e',0};
WARN("Exception %08x %s", exception_hres, debugstr_jsval(ctx->ei.val));
if(jsval_type(ctx->ei.val) == JSV_OBJECT) {
error_obj = to_jsdisp(get_object(ctx->ei.val));
if(error_obj) {
hres = jsdisp_propget_name(error_obj, messageW, &msg);
if(SUCCEEDED(hres)) {
WARN(" (message %s)", debugstr_jsval(msg));
jsval_release(msg);
}
}
}
WARN(" in:\n");
print_backtrace(ctx);
}
for(frame = ctx->call_ctx; !frame->except_frame; frame = ctx->call_ctx) {
DWORD flags;
while(frame->scope != frame->base_scope)
scope_pop(&frame->scope);
stack_popn(ctx, ctx->stack_top-frame->stack_base);
flags = frame->flags;
pop_call_frame(ctx);
if(!(flags & EXEC_RETURN_TO_INTERP))
return exception_hres;
}
except_frame = frame->except_frame;
catch_off = except_frame->catch_off;
assert(except_frame->stack_top <= ctx->stack_top);
stack_popn(ctx, ctx->stack_top - except_frame->stack_top);
while(except_frame->scope != frame->scope)
scope_pop(&frame->scope);
frame->ip = catch_off ? catch_off : except_frame->finally_off;
if(catch_off) assert(frame->bytecode->instrs[frame->ip].op == OP_enter_catch);
except_val = ctx->ei.val;
ctx->ei.val = jsval_undefined();
clear_ei(ctx);
/* keep current except_frame if we're entering catch block with finally block associated */
if(catch_off && except_frame->finally_off) {
except_frame->catch_off = 0;
}else {
frame->except_frame = except_frame->next;
heap_free(except_frame);
}
hres = stack_push(ctx, except_val);
if(FAILED(hres))
return hres;
if(!catch_off)
hres = stack_push(ctx, jsval_bool(FALSE));
return hres;
}
static HRESULT enter_bytecode(script_ctx_t *ctx, jsval_t *r)
{
call_frame_t *frame;
jsop_t op;
HRESULT hres = S_OK;
TRACE("\n");
while(1) {
frame = ctx->call_ctx;
op = frame->bytecode->instrs[frame->ip].op;
hres = op_funcs[op](ctx);
if(FAILED(hres)) {
hres = unwind_exception(ctx, hres);
if(FAILED(hres))
return hres;
}else if(frame->ip == -1) {
const DWORD return_to_interp = frame->flags & EXEC_RETURN_TO_INTERP;
assert(ctx->stack_top == frame->stack_base);
assert(frame->scope == frame->base_scope);
if(return_to_interp) {
clear_ret(frame->prev_frame);
frame->prev_frame->ret = steal_ret(frame);
}else if(r) {
*r = steal_ret(frame);
}
pop_call_frame(ctx);
if(!return_to_interp)
break;
}else {
frame->ip += op_move[op];
}
}
return S_OK;
}
static HRESULT bind_event_target(script_ctx_t *ctx, function_code_t *func, jsdisp_t *func_obj)
{
IBindEventHandler *target;
exprval_t exprval;
IDispatch *disp;
jsval_t v;
HRESULT hres;
hres = identifier_eval(ctx, func->event_target, &exprval);
if(FAILED(hres))
return hres;
hres = exprval_to_value(ctx, &exprval, &v);
if(FAILED(hres))
return hres;
if(!is_object_instance(v)) {
FIXME("Can't bind to %s\n", debugstr_jsval(v));
jsval_release(v);
}
disp = get_object(v);
hres = IDispatch_QueryInterface(disp, &IID_IBindEventHandler, (void**)&target);
if(SUCCEEDED(hres)) {
hres = IBindEventHandler_BindHandler(target, func->name, (IDispatch*)&func_obj->IDispatchEx_iface);
IBindEventHandler_Release(target);
if(FAILED(hres))
WARN("BindEvent failed: %08x\n", hres);
}else {
FIXME("No IBindEventHandler, not yet supported binding\n");
}
IDispatch_Release(disp);
return hres;
}
static HRESULT setup_scope(script_ctx_t *ctx, call_frame_t *frame, scope_chain_t *scope_chain, jsdisp_t *variable_object, unsigned argc, jsval_t *argv)
{
const unsigned orig_stack = ctx->stack_top;
scope_chain_t *scope;
unsigned i;
jsval_t v;
HRESULT hres;
/* If arguments are already on the stack, we may use them. */
if(argv + argc == ctx->stack + ctx->stack_top) {
frame->arguments_off = argv - ctx->stack;
i = argc;
}else {
frame->arguments_off = ctx->stack_top;
for(i = 0; i < argc; i++) {
hres = jsval_copy(argv[i], &v);
if(SUCCEEDED(hres))
hres = stack_push(ctx, v);
if(FAILED(hres)) {
stack_popn(ctx, i);
return hres;
}
}
}
/* If fewer than declared arguments were passed, fill remaining with undefined value. */
for(; i < frame->function->param_cnt; i++) {
hres = stack_push(ctx, jsval_undefined());
if(FAILED(hres)) {
stack_popn(ctx, ctx->stack_top - orig_stack);
return hres;
}
}
frame->pop_locals = ctx->stack_top - orig_stack;
frame->variables_off = ctx->stack_top;
for(i = 0; i < frame->function->var_cnt; i++) {
hres = stack_push(ctx, jsval_undefined());
if(FAILED(hres)) {
stack_popn(ctx, ctx->stack_top - orig_stack);
return hres;
}
}
frame->pop_variables = i;
hres = scope_push(scope_chain, variable_object, to_disp(variable_object), &scope);
if(FAILED(hres)) {
stack_popn(ctx, ctx->stack_top - orig_stack);
return hres;
}
for(i = 0; i < frame->function->func_cnt; i++) {
if(frame->function->funcs[i].name && !frame->function->funcs[i].event_target) {
jsdisp_t *func_obj;
unsigned off;
hres = create_source_function(ctx, frame->bytecode, frame->function->funcs+i, scope, &func_obj);
if(FAILED(hres)) {
stack_popn(ctx, ctx->stack_top - orig_stack);
scope_release(scope);
return hres;
}
off = local_off(frame, frame->function->funcs[i].local_ref);
jsval_release(ctx->stack[off]);
ctx->stack[off] = jsval_obj(func_obj);
}
}
scope->frame = frame;
frame->base_scope = frame->scope = scope;
return S_OK;
}
HRESULT exec_source(script_ctx_t *ctx, DWORD flags, bytecode_t *bytecode, function_code_t *function, scope_chain_t *scope,
IDispatch *this_obj, jsdisp_t *function_instance, jsdisp_t *variable_obj, unsigned argc, jsval_t *argv, jsval_t *r)
{
call_frame_t *frame;
unsigned i;
HRESULT hres;
for(i = 0; i < function->func_cnt; i++) {
jsdisp_t *func_obj;
if(!function->funcs[i].event_target)
continue;
hres = create_source_function(ctx, bytecode, function->funcs+i, scope, &func_obj);
if(FAILED(hres))
return hres;
hres = bind_event_target(ctx, function->funcs+i, func_obj);
jsdisp_release(func_obj);
if(FAILED(hres))
return hres;
}
if(flags & (EXEC_GLOBAL | EXEC_EVAL)) {
for(i=0; i < function->var_cnt; i++) {
TRACE("[%d] %s %d\n", i, debugstr_w(function->variables[i].name), function->variables[i].func_id);
if(function->variables[i].func_id != -1) {
jsdisp_t *func_obj;
hres = create_source_function(ctx, bytecode, function->funcs+function->variables[i].func_id, scope, &func_obj);
if(FAILED(hres))
return hres;
hres = jsdisp_propput_name(variable_obj, function->variables[i].name, jsval_obj(func_obj));
jsdisp_release(func_obj);
}else if(!(flags & EXEC_GLOBAL) || !lookup_global_members(ctx, function->variables[i].name, NULL)) {
DISPID id = 0;
hres = jsdisp_get_id(variable_obj, function->variables[i].name, fdexNameEnsure, &id);
if(FAILED(hres))
return hres;
}
}
}
/* ECMA-262 3rd Edition 11.2.3.7 */
if(this_obj) {
jsdisp_t *jsthis;
jsthis = iface_to_jsdisp(this_obj);
if(jsthis) {
if(jsthis->builtin_info->class == JSCLASS_GLOBAL || jsthis->builtin_info->class == JSCLASS_NONE)
this_obj = NULL;
jsdisp_release(jsthis);
}
}
if(ctx->call_ctx && (flags & EXEC_EVAL)) {
hres = detach_variable_object(ctx, ctx->call_ctx, FALSE);
if(FAILED(hres))
return hres;
}
frame = heap_alloc_zero(sizeof(*frame));
if(!frame)
return E_OUTOFMEMORY;
frame->function = function;
frame->ret = jsval_undefined();
frame->argc = argc;
frame->bytecode = bytecode_addref(bytecode);
if(!(flags & (EXEC_GLOBAL|EXEC_EVAL))) {
hres = setup_scope(ctx, frame, scope, variable_obj, argc, argv);
if(FAILED(hres)) {
release_bytecode(frame->bytecode);
heap_free(frame);
return hres;
}
}else if(scope) {
frame->base_scope = frame->scope = scope_addref(scope);
}
frame->ip = function->instr_off;
frame->stack_base = ctx->stack_top;
if(this_obj)
frame->this_obj = this_obj;
else if(ctx->host_global)
frame->this_obj = ctx->host_global;
else
frame->this_obj = to_disp(ctx->global);
IDispatch_AddRef(frame->this_obj);
if(function_instance)
frame->function_instance = jsdisp_addref(function_instance);
frame->flags = flags;
frame->variable_obj = jsdisp_addref(variable_obj);
frame->prev_frame = ctx->call_ctx;
ctx->call_ctx = frame;
if(flags & EXEC_RETURN_TO_INTERP) {
/*
* We're called directly from interpreter, so we may just setup call frame and return.
* Already running interpreter will take care of execution.
*/
if(r)
*r = jsval_undefined();
return S_OK;
}
return enter_bytecode(ctx, r);
}
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