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wine/dlls/jscript/engine.c

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/*
* Copyright 2008 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 _return_type_t {
enum{
RT_NORMAL,
RT_RETURN,
RT_BREAK,
RT_CONTINUE
} type;
jsexcept_t ei;
};
struct _except_frame_t {
unsigned stack_top;
scope_chain_t *scope;
unsigned catch_off;
BSTR ident;
except_frame_t *next;
};
static inline HRESULT stat_eval(script_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
{
return stat->eval(ctx, stat, rt, ret);
}
static HRESULT expr_eval(script_ctx_t*,expression_t*,jsexcept_t*,VARIANT*);
static HRESULT stack_push(exec_ctx_t *ctx, VARIANT *v)
{
if(!ctx->stack_size) {
ctx->stack = heap_alloc(16*sizeof(VARIANT));
if(!ctx->stack)
return E_OUTOFMEMORY;
ctx->stack_size = 16;
}else if(ctx->stack_size == ctx->top) {
VARIANT *new_stack;
new_stack = heap_realloc(ctx->stack, ctx->stack_size*2*sizeof(VARIANT));
if(!new_stack) {
VariantClear(v);
return E_OUTOFMEMORY;
}
ctx->stack = new_stack;
ctx->stack_size *= 2;
}
ctx->stack[ctx->top++] = *v;
return S_OK;
}
static HRESULT stack_push_bool(exec_ctx_t *ctx, BOOL b)
{
VARIANT v;
V_VT(&v) = VT_BOOL;
V_BOOL(&v) = b ? VARIANT_TRUE : VARIANT_FALSE;
return stack_push(ctx, &v);
}
static inline HRESULT stack_push_number(exec_ctx_t *ctx, double number)
{
VARIANT v;
num_set_val(&v, number);
return stack_push(ctx, &v);
}
static inline HRESULT stack_push_int(exec_ctx_t *ctx, INT n)
{
VARIANT v;
V_VT(&v) = VT_I4;
V_I4(&v) = n;
return stack_push(ctx, &v);
}
static inline HRESULT stack_push_string(exec_ctx_t *ctx, const WCHAR *str)
{
VARIANT v;
V_VT(&v) = VT_BSTR;
V_BSTR(&v) = SysAllocString(str);
return V_BSTR(&v) ? stack_push(ctx, &v) : E_OUTOFMEMORY;
}
static HRESULT stack_push_objid(exec_ctx_t *ctx, IDispatch *disp, DISPID id)
{
VARIANT v;
HRESULT hres;
V_VT(&v) = VT_DISPATCH;
V_DISPATCH(&v) = disp;
hres = stack_push(ctx, &v);
if(FAILED(hres))
return hres;
V_VT(&v) = VT_INT;
V_INT(&v) = id;
return stack_push(ctx, &v);
}
static inline VARIANT *stack_top(exec_ctx_t *ctx)
{
assert(ctx->top);
return ctx->stack + ctx->top-1;
}
static inline VARIANT *stack_topn(exec_ctx_t *ctx, unsigned n)
{
assert(ctx->top > n);
return ctx->stack + ctx->top-1-n;
}
static inline VARIANT *stack_pop(exec_ctx_t *ctx)
{
assert(ctx->top);
return ctx->stack + --ctx->top;
}
static void stack_popn(exec_ctx_t *ctx, unsigned n)
{
while(n--)
VariantClear(stack_pop(ctx));
}
static HRESULT stack_pop_number(exec_ctx_t *ctx, VARIANT *r)
{
VARIANT *v;
HRESULT hres;
v = stack_pop(ctx);
hres = to_number(ctx->parser->script, v, ctx->ei, r);
VariantClear(v);
return hres;
}
static HRESULT stack_pop_object(exec_ctx_t *ctx, IDispatch **r)
{
VARIANT *v;
HRESULT hres;
v = stack_pop(ctx);
if(V_VT(v) == VT_DISPATCH) {
if(!V_DISPATCH(v))
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_OBJECT_REQUIRED, NULL);
*r = V_DISPATCH(v);
return S_OK;
}
hres = to_object(ctx->parser->script, v, r);
VariantClear(v);
return hres;
}
static inline HRESULT stack_pop_int(exec_ctx_t *ctx, INT *r)
{
return to_int32(ctx->parser->script, stack_pop(ctx), ctx->ei, r);
}
static inline HRESULT stack_pop_uint(exec_ctx_t *ctx, DWORD *r)
{
return to_uint32(ctx->parser->script, stack_pop(ctx), ctx->ei, r);
}
static inline IDispatch *stack_pop_objid(exec_ctx_t *ctx, DISPID *id)
{
assert(V_VT(stack_top(ctx)) == VT_INT && V_VT(stack_topn(ctx, 1)) == VT_DISPATCH);
*id = V_INT(stack_pop(ctx));
return V_DISPATCH(stack_pop(ctx));
}
static inline IDispatch *stack_topn_objid(exec_ctx_t *ctx, unsigned n, DISPID *id)
{
assert(V_VT(stack_topn(ctx, n)) == VT_INT && V_VT(stack_topn(ctx, n+1)) == VT_DISPATCH);
*id = V_INT(stack_topn(ctx, n));
return V_DISPATCH(stack_topn(ctx, n+1));
}
static void exprval_release(exprval_t *val)
{
switch(val->type) {
case EXPRVAL_VARIANT:
if(V_VT(&val->u.var) != VT_EMPTY)
VariantClear(&val->u.var);
return;
case EXPRVAL_IDREF:
if(val->u.idref.disp)
IDispatch_Release(val->u.idref.disp);
return;
case EXPRVAL_INVALID:
return;
}
}
/* ECMA-262 3rd Edition 8.7.1 */
static HRESULT exprval_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
{
V_VT(ret) = VT_EMPTY;
switch(val->type) {
case EXPRVAL_VARIANT:
return VariantCopy(ret, &val->u.var);
case EXPRVAL_IDREF:
if(!val->u.idref.disp) {
FIXME("throw ReferenceError\n");
return E_FAIL;
}
return disp_propget(ctx, val->u.idref.disp, val->u.idref.id, ret, ei, NULL/*FIXME*/);
case EXPRVAL_INVALID:
assert(0);
}
ERR("type %d\n", val->type);
return E_FAIL;
}
static HRESULT exprval_to_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *ei, VARIANT *ret)
{
if(val->type == EXPRVAL_VARIANT) {
*ret = val->u.var;
V_VT(&val->u.var) = VT_EMPTY;
return S_OK;
}
return exprval_value(ctx, val, ei, ret);
}
static void exprval_set_idref(exprval_t *val, IDispatch *disp, DISPID id)
{
val->type = EXPRVAL_IDREF;
val->u.idref.disp = disp;
val->u.idref.id = id;
if(disp)
IDispatch_AddRef(disp);
}
HRESULT scope_push(scope_chain_t *scope, jsdisp_t *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;
jsdisp_addref(obj);
new_scope->obj = obj;
if(scope) {
scope_addref(scope);
new_scope->next = scope;
}else {
new_scope->next = 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 scope_release(scope_chain_t *scope)
{
if(--scope->ref)
return;
if(scope->next)
scope_release(scope->next);
jsdisp_release(scope->obj);
heap_free(scope);
}
HRESULT create_exec_ctx(script_ctx_t *script_ctx, IDispatch *this_obj, jsdisp_t *var_disp,
scope_chain_t *scope, BOOL is_global, exec_ctx_t **ret)
{
exec_ctx_t *ctx;
ctx = heap_alloc_zero(sizeof(exec_ctx_t));
if(!ctx)
return E_OUTOFMEMORY;
ctx->ref = 1;
ctx->is_global = is_global;
if(this_obj)
ctx->this_obj = this_obj;
else if(script_ctx->host_global)
ctx->this_obj = script_ctx->host_global;
else
ctx->this_obj = to_disp(script_ctx->global);
IDispatch_AddRef(ctx->this_obj);
jsdisp_addref(var_disp);
ctx->var_disp = var_disp;
if(scope) {
scope_addref(scope);
ctx->scope_chain = scope;
}
*ret = ctx;
return S_OK;
}
void exec_release(exec_ctx_t *ctx)
{
if(--ctx->ref)
return;
if(ctx->scope_chain)
scope_release(ctx->scope_chain);
if(ctx->var_disp)
jsdisp_release(ctx->var_disp);
if(ctx->this_obj)
IDispatch_Release(ctx->this_obj);
heap_free(ctx->stack);
heap_free(ctx);
}
static HRESULT disp_get_id(script_ctx_t *ctx, IDispatch *disp, BSTR name, DWORD flags, DISPID *id)
{
IDispatchEx *dispex;
HRESULT hres;
hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
if(FAILED(hres)) {
TRACE("unsing IDispatch\n");
*id = 0;
return IDispatch_GetIDsOfNames(disp, &IID_NULL, &name, 1, 0, id);
}
*id = 0;
hres = IDispatchEx_GetDispID(dispex, name, make_grfdex(ctx, flags|fdexNameCaseSensitive), id);
IDispatchEx_Release(dispex);
return hres;
}
static inline BOOL is_null(const VARIANT *v)
{
return V_VT(v) == VT_NULL || (V_VT(v) == VT_DISPATCH && !V_DISPATCH(v));
}
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(VARIANT *lval, VARIANT *rval, BOOL *ret)
{
TRACE("\n");
if(V_VT(lval) != V_VT(rval)) {
if(is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval)))
*ret = num_val(lval) == num_val(rval);
else if(is_null(lval))
*ret = is_null(rval);
else
*ret = FALSE;
return S_OK;
}
switch(V_VT(lval)) {
case VT_EMPTY:
case VT_NULL:
*ret = VARIANT_TRUE;
break;
case VT_I4:
*ret = V_I4(lval) == V_I4(rval);
break;
case VT_R8:
*ret = V_R8(lval) == V_R8(rval);
break;
case VT_BSTR:
if(!V_BSTR(lval))
*ret = SysStringLen(V_BSTR(rval))?FALSE:TRUE;
else if(!V_BSTR(rval))
*ret = SysStringLen(V_BSTR(lval))?FALSE:TRUE;
else
*ret = !strcmpW(V_BSTR(lval), V_BSTR(rval));
break;
case VT_DISPATCH:
return disp_cmp(V_DISPATCH(lval), V_DISPATCH(rval), ret);
case VT_BOOL:
*ret = !V_BOOL(lval) == !V_BOOL(rval);
break;
default:
FIXME("unimplemented vt %d\n", V_VT(lval));
return E_NOTIMPL;
}
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, 0, &id);
if(SUCCEEDED(hres)) {
if(ret)
exprval_set_idref(ret, item->disp, id);
return TRUE;
}
}
}
return FALSE;
}
HRESULT exec_source(exec_ctx_t *ctx, parser_ctx_t *parser, source_elements_t *source, BOOL from_eval,
jsexcept_t *ei, VARIANT *retv)
{
script_ctx_t *script = parser->script;
function_declaration_t *func;
parser_ctx_t *prev_parser;
var_list_t *var;
VARIANT val;
exec_ctx_t *prev_ctx;
return_type_t rt;
HRESULT hres = S_OK;
for(func = source->functions; func; func = func->next) {
jsdisp_t *func_obj;
VARIANT var;
hres = create_source_function(parser, func->expr->parameter_list, func->expr->source_elements,
ctx->scope_chain, func->expr->src_str, func->expr->src_len, &func_obj);
if(FAILED(hres))
return hres;
var_set_jsdisp(&var, func_obj);
hres = jsdisp_propput_name(ctx->var_disp, func->expr->identifier, &var, ei, NULL);
jsdisp_release(func_obj);
if(FAILED(hres))
return hres;
}
for(var = source->variables; var; var = var->next) {
DISPID id = 0;
BSTR name;
name = SysAllocString(var->identifier);
if(!name)
return E_OUTOFMEMORY;
if(!ctx->is_global || !lookup_global_members(parser->script, name, NULL))
hres = jsdisp_get_id(ctx->var_disp, var->identifier, fdexNameEnsure, &id);
SysFreeString(name);
if(FAILED(hres))
return hres;
}
prev_ctx = script->exec_ctx;
script->exec_ctx = ctx;
prev_parser = ctx->parser;
ctx->parser = parser;
V_VT(&val) = VT_EMPTY;
memset(&rt, 0, sizeof(rt));
rt.type = RT_NORMAL;
if(source->statement) {
if(source->statement->instr_off == -1)
hres = compile_subscript_stat(ctx->parser, source->statement, TRUE, &source->statement->instr_off);
if(SUCCEEDED(hres))
hres = compiled_statement_eval(script, source->statement, &rt, &val);
}
script->exec_ctx = prev_ctx;
ctx->parser = prev_parser;
if(rt.type != RT_NORMAL && rt.type != RT_RETURN) {
FIXME("wrong rt %d\n", rt.type);
hres = E_FAIL;
}
*ei = rt.ei;
if(FAILED(hres)) {
VariantClear(&val);
return hres;
}
if(!retv || (!from_eval && rt.type != RT_RETURN))
VariantClear(&val);
if(retv)
*retv = val;
return S_OK;
}
/* ECMA-262 3rd Edition 10.1.4 */
static HRESULT identifier_eval(script_ctx_t *ctx, BSTR identifier, DWORD flags, jsexcept_t *ei, exprval_t *ret)
{
scope_chain_t *scope;
named_item_t *item;
DISPID id = 0;
HRESULT hres;
TRACE("%s\n", debugstr_w(identifier));
for(scope = ctx->exec_ctx->scope_chain; scope; scope = scope->next) {
hres = jsdisp_get_id(scope->obj, identifier, 0, &id);
if(SUCCEEDED(hres)) {
exprval_set_idref(ret, to_disp(scope->obj), id);
return S_OK;
}
}
hres = jsdisp_get_id(ctx->global, identifier, 0, &id);
if(SUCCEEDED(hres)) {
exprval_set_idref(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;
}
}
ret->type = EXPRVAL_VARIANT;
V_VT(&ret->u.var) = VT_DISPATCH;
V_DISPATCH(&ret->u.var) = item->disp;
IDispatch_AddRef(item->disp);
return S_OK;
}
}
if(lookup_global_members(ctx, identifier, ret))
return S_OK;
if(flags & fdexNameEnsure) {
hres = jsdisp_get_id(ctx->global, identifier, fdexNameEnsure, &id);
if(FAILED(hres))
return hres;
exprval_set_idref(ret, to_disp(ctx->global), id);
return S_OK;
}
ret->type = EXPRVAL_INVALID;
return S_OK;
}
/* ECMA-262 3rd Edition 12.2 */
static HRESULT variable_list_eval(script_ctx_t *ctx, variable_declaration_t *var_list, jsexcept_t *ei)
{
variable_declaration_t *iter;
HRESULT hres = S_OK;
for(iter = var_list; iter; iter = iter->next) {
VARIANT val;
if(!iter->expr)
continue;
hres = expr_eval(ctx, iter->expr, ei, &val);
if(FAILED(hres))
break;
hres = jsdisp_propput_name(ctx->exec_ctx->var_disp, iter->identifier, &val, ei, NULL/*FIXME*/);
VariantClear(&val);
if(FAILED(hres))
break;
}
return hres;
}
/* ECMA-262 3rd Edition 12.2 */
static HRESULT interp_var_set(exec_ctx_t *ctx)
{
const BSTR name = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
VARIANT *v;
HRESULT hres;
TRACE("%s\n", debugstr_w(name));
v = stack_pop(ctx);
hres = jsdisp_propput_name(ctx->var_disp, name, v, ctx->ei, NULL/*FIXME*/);
VariantClear(v);
return hres;
}
/* ECMA-262 3rd Edition 12.6.2 */
HRESULT while_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
{
while_statement_t *stat = (while_statement_t*)_stat;
VARIANT val, tmp;
VARIANT_BOOL b;
BOOL test_expr;
HRESULT hres;
TRACE("\n");
V_VT(&val) = VT_EMPTY;
test_expr = !stat->do_while;
while(1) {
if(test_expr) {
hres = expr_eval(ctx, stat->expr, &rt->ei, &tmp);
if(FAILED(hres))
break;
hres = to_boolean(&tmp, &b);
VariantClear(&tmp);
if(FAILED(hres) || !b)
break;
}else {
test_expr = TRUE;
}
hres = stat_eval(ctx, stat->statement, rt, &tmp);
if(FAILED(hres))
break;
VariantClear(&val);
val = tmp;
if(rt->type == RT_CONTINUE)
rt->type = RT_NORMAL;
if(rt->type != RT_NORMAL)
break;
}
if(FAILED(hres)) {
VariantClear(&val);
return hres;
}
if(rt->type == RT_BREAK)
rt->type = RT_NORMAL;
*ret = val;
return S_OK;
}
/* ECMA-262 3rd Edition 12.6.3 */
HRESULT for_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
{
for_statement_t *stat = (for_statement_t*)_stat;
VARIANT val, tmp, retv;
VARIANT_BOOL b;
HRESULT hres;
TRACE("\n");
if(stat->variable_list) {
hres = variable_list_eval(ctx, stat->variable_list, &rt->ei);
if(FAILED(hres))
return hres;
}else if(stat->begin_expr) {
hres = expr_eval(ctx, stat->begin_expr, &rt->ei, &val);
if(FAILED(hres))
return hres;
VariantClear(&val);
}
V_VT(&retv) = VT_EMPTY;
while(1) {
if(stat->expr) {
hres = expr_eval(ctx, stat->expr, &rt->ei, &tmp);
if(FAILED(hres))
break;
hres = to_boolean(&tmp, &b);
VariantClear(&tmp);
if(FAILED(hres) || !b)
break;
}
hres = stat_eval(ctx, stat->statement, rt, &tmp);
if(FAILED(hres))
break;
VariantClear(&retv);
retv = tmp;
if(rt->type == RT_CONTINUE)
rt->type = RT_NORMAL;
else if(rt->type != RT_NORMAL)
break;
if(stat->end_expr) {
hres = expr_eval(ctx, stat->end_expr, &rt->ei, &val);
if(FAILED(hres))
break;
VariantClear(&val);
}
}
if(FAILED(hres)) {
VariantClear(&retv);
return hres;
}
if(rt->type == RT_BREAK)
rt->type = RT_NORMAL;
*ret = retv;
return S_OK;
}
/* ECMA-262 3rd Edition 12.6.4 */
static HRESULT interp_forin(exec_ctx_t *ctx)
{
const HRESULT arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
IDispatch *var_obj, *obj = NULL;
IDispatchEx *dispex;
DISPID id, var_id;
BSTR name = NULL;
VARIANT *val;
HRESULT hres;
TRACE("\n");
val = stack_pop(ctx);
assert(V_VT(stack_top(ctx)) == VT_I4);
id = V_I4(stack_top(ctx));
var_obj = stack_topn_objid(ctx, 1, &var_id);
if(!var_obj) {
FIXME("invalid ref\n");
VariantClear(val);
return E_FAIL;
}
if(V_VT(stack_topn(ctx, 3)) == VT_DISPATCH)
obj = V_DISPATCH(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)) {
VariantClear(val);
return hres;
}
}else {
TRACE("No IDispatchEx\n");
}
}
if(name) {
VARIANT v;
VariantClear(val);
V_I4(stack_top(ctx)) = id;
V_VT(&v) = VT_BSTR;
V_BSTR(&v) = name;
hres = disp_propput(ctx->parser->script, var_obj, var_id, &v, ctx->ei, NULL/*FIXME*/);
SysFreeString(name);
if(FAILED(hres))
return hres;
ctx->ip++;
}else {
stack_popn(ctx, 4);
ctx->ip = arg;
return stack_push(ctx, val);
}
return S_OK;
}
/* ECMA-262 3rd Edition 12.7 */
HRESULT continue_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
{
branch_statement_t *stat = (branch_statement_t*)_stat;
TRACE("\n");
if(stat->identifier) {
FIXME("indentifier not implemented\n");
return E_NOTIMPL;
}
rt->type = RT_CONTINUE;
V_VT(ret) = VT_EMPTY;
return S_OK;
}
/* ECMA-262 3rd Edition 12.8 */
HRESULT break_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
{
branch_statement_t *stat = (branch_statement_t*)_stat;
TRACE("\n");
if(stat->identifier) {
FIXME("indentifier not implemented\n");
return E_NOTIMPL;
}
rt->type = RT_BREAK;
V_VT(ret) = VT_EMPTY;
return S_OK;
}
/* ECMA-262 3rd Edition 12.9 */
HRESULT return_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
{
expression_statement_t *stat = (expression_statement_t*)_stat;
HRESULT hres;
TRACE("\n");
if(stat->expr) {
hres = expr_eval(ctx, stat->expr, &rt->ei, ret);
if(FAILED(hres))
return hres;
}else {
V_VT(ret) = VT_EMPTY;
}
TRACE("= %s\n", debugstr_variant(ret));
rt->type = RT_RETURN;
return S_OK;
}
/* ECMA-262 3rd Edition 12.10 */
HRESULT interp_push_scope(exec_ctx_t *ctx)
{
IDispatch *disp;
jsdisp_t *obj;
VARIANT *v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_object(ctx->parser->script, v, &disp);
VariantClear(v);
if(FAILED(hres))
return hres;
obj = to_jsdisp(disp);
if(!obj) {
IDispatch_Release(disp);
FIXME("disp is not jsdisp\n");
return E_NOTIMPL;
}
hres = scope_push(ctx->scope_chain, obj, &ctx->scope_chain);
jsdisp_release(obj);
return hres;
}
/* ECMA-262 3rd Edition 12.10 */
HRESULT interp_pop_scope(exec_ctx_t *ctx)
{
TRACE("\n");
scope_pop(&ctx->scope_chain);
return S_OK;
}
/* ECMA-262 3rd Edition 12.12 */
HRESULT interp_label(exec_ctx_t *ctx)
{
FIXME("\n");
return E_NOTIMPL;
}
/* ECMA-262 3rd Edition 12.13 */
static HRESULT interp_case(exec_ctx_t *ctx)
{
const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
VARIANT *v;
BOOL b;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = equal2_values(stack_top(ctx), v, &b);
VariantClear(v);
if(FAILED(hres))
return hres;
if(b) {
stack_popn(ctx, 1);
ctx->ip = arg;
}else {
ctx->ip++;
}
return S_OK;
}
/* ECMA-262 3rd Edition 12.13 */
HRESULT switch_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
{
switch_statement_t *stat = (switch_statement_t*)_stat;
case_clausule_t *iter, *default_clausule = NULL;
statement_t *stat_iter;
VARIANT val, cval;
BOOL b;
HRESULT hres;
TRACE("\n");
hres = expr_eval(ctx, stat->expr, &rt->ei, &val);
if(FAILED(hres))
return hres;
for(iter = stat->case_list; iter; iter = iter->next) {
if(!iter->expr) {
default_clausule = iter;
continue;
}
hres = expr_eval(ctx, iter->expr, &rt->ei, &cval);
if(FAILED(hres))
break;
hres = equal2_values(&val, &cval, &b);
VariantClear(&cval);
if(FAILED(hres) || b)
break;
}
VariantClear(&val);
if(FAILED(hres))
return hres;
if(!iter)
iter = default_clausule;
V_VT(&val) = VT_EMPTY;
if(iter) {
VARIANT tmp;
for(stat_iter = iter->stat; stat_iter; stat_iter = stat_iter->next) {
hres = stat_eval(ctx, stat_iter, rt, &tmp);
if(FAILED(hres))
break;
VariantClear(&val);
val = tmp;
if(rt->type != RT_NORMAL)
break;
}
}
if(FAILED(hres)) {
VariantClear(&val);
return hres;
}
if(rt->type == RT_BREAK)
rt->type = RT_NORMAL;
*ret = val;
return S_OK;
}
/* ECMA-262 3rd Edition 12.13 */
static HRESULT interp_throw(exec_ctx_t *ctx)
{
TRACE("\n");
ctx->rt->ei.var = *stack_pop(ctx);
return DISP_E_EXCEPTION;
}
static HRESULT interp_throw_ref(exec_ctx_t *ctx)
{
const HRESULT arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
TRACE("%08x\n", arg);
return throw_reference_error(ctx->parser->script, ctx->ei, arg, NULL);
}
static HRESULT interp_throw_type(exec_ctx_t *ctx)
{
const HRESULT hres = ctx->parser->code->instrs[ctx->ip].arg1.uint;
const WCHAR *str = ctx->parser->code->instrs[ctx->ip].arg2.str;
TRACE("%08x %s\n", hres, debugstr_w(str));
return throw_type_error(ctx->parser->script, ctx->ei, hres, str);
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT catch_eval(script_ctx_t *ctx, catch_block_t *block, return_type_t *rt, VARIANT *ret)
{
jsdisp_t *var_disp;
VARIANT ex, val;
HRESULT hres;
ex = rt->ei.var;
memset(&rt->ei, 0, sizeof(jsexcept_t));
hres = create_dispex(ctx, NULL, NULL, &var_disp);
if(SUCCEEDED(hres)) {
hres = jsdisp_propput_name(var_disp, block->identifier, &ex, &rt->ei, NULL/*FIXME*/);
if(SUCCEEDED(hres)) {
hres = scope_push(ctx->exec_ctx->scope_chain, var_disp, &ctx->exec_ctx->scope_chain);
if(SUCCEEDED(hres)) {
hres = stat_eval(ctx, block->statement, rt, &val);
scope_pop(&ctx->exec_ctx->scope_chain);
}
}
jsdisp_release(var_disp);
}
VariantClear(&ex);
if(FAILED(hres))
return hres;
*ret = val;
return S_OK;
}
/* ECMA-262 3rd Edition 12.14 */
HRESULT try_statement_eval(script_ctx_t *ctx, statement_t *_stat, return_type_t *rt, VARIANT *ret)
{
try_statement_t *stat = (try_statement_t*)_stat;
VARIANT val;
HRESULT hres;
TRACE("\n");
hres = stat_eval(ctx, stat->try_statement, rt, &val);
if(FAILED(hres)) {
TRACE("EXCEPTION\n");
if(!stat->catch_block)
return hres;
hres = catch_eval(ctx, stat->catch_block, rt, &val);
if(FAILED(hres))
return hres;
}
if(stat->finally_statement) {
VariantClear(&val);
hres = stat_eval(ctx, stat->finally_statement, rt, &val);
if(FAILED(hres))
return hres;
}
*ret = val;
return S_OK;
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT interp_push_except(exec_ctx_t *ctx)
{
const unsigned arg1 = ctx->parser->code->instrs[ctx->ip].arg1.uint;
const BSTR arg2 = ctx->parser->code->instrs[ctx->ip].arg2.bstr;
except_frame_t *except;
unsigned stack_top;
TRACE("\n");
stack_top = ctx->top;
if(!arg2) {
HRESULT hres;
hres = stack_push_bool(ctx, TRUE);
if(FAILED(hres))
return hres;
hres = stack_push_bool(ctx, TRUE);
if(FAILED(hres))
return hres;
}
except = heap_alloc(sizeof(*except));
if(!except)
return E_OUTOFMEMORY;
except->stack_top = stack_top;
except->scope = ctx->scope_chain;
except->catch_off = arg1;
except->ident = arg2;
except->next = ctx->except_frame;
ctx->except_frame = except;
return S_OK;
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT interp_pop_except(exec_ctx_t *ctx)
{
except_frame_t *except;
TRACE("\n");
except = ctx->except_frame;
assert(except != NULL);
ctx->except_frame = except->next;
heap_free(except);
return S_OK;
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT interp_end_finally(exec_ctx_t *ctx)
{
VARIANT *v;
TRACE("\n");
v = stack_pop(ctx);
assert(V_VT(stack_top(ctx)) == VT_BOOL);
if(!V_BOOL(stack_top(ctx))) {
TRACE("passing exception\n");
VariantClear(v);
stack_popn(ctx, 1);
ctx->rt->ei.var = *stack_pop(ctx);
return DISP_E_EXCEPTION;
}
stack_popn(ctx, 2);
return stack_push(ctx, v);
}
/* ECMA-262 3rd Edition 13 */
static HRESULT interp_func(exec_ctx_t *ctx)
{
function_expression_t *expr = ctx->parser->code->instrs[ctx->ip].arg1.func;
jsdisp_t *dispex;
VARIANT v;
HRESULT hres;
TRACE("\n");
hres = create_source_function(ctx->parser, expr->parameter_list, expr->source_elements, ctx->scope_chain,
expr->src_str, expr->src_len, &dispex);
if(FAILED(hres))
return hres;
var_set_jsdisp(&v, dispex);
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 11.2.1 */
static HRESULT interp_array(exec_ctx_t *ctx)
{
VARIANT v, *namev;
IDispatch *obj;
DISPID id;
BSTR name;
HRESULT hres;
TRACE("\n");
namev = stack_pop(ctx);
hres = stack_pop_object(ctx, &obj);
if(FAILED(hres)) {
VariantClear(namev);
return hres;
}
hres = to_string(ctx->parser->script, namev, ctx->ei, &name);
VariantClear(namev);
if(FAILED(hres)) {
IDispatch_Release(obj);
return hres;
}
hres = disp_get_id(ctx->parser->script, obj, name, 0, &id);
SysFreeString(name);
if(SUCCEEDED(hres)) {
hres = disp_propget(ctx->parser->script, obj, id, &v, ctx->ei, NULL/*FIXME*/);
}else if(hres == DISP_E_UNKNOWNNAME) {
V_VT(&v) = VT_EMPTY;
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(exec_ctx_t *ctx)
{
const BSTR arg = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
IDispatch *obj;
VARIANT v;
DISPID id;
HRESULT hres;
TRACE("\n");
hres = stack_pop_object(ctx, &obj);
if(FAILED(hres))
return hres;
hres = disp_get_id(ctx->parser->script, obj, arg, 0, &id);
if(SUCCEEDED(hres)) {
V_VT(&v) = VT_EMPTY;
hres = disp_propget(ctx->parser->script, obj, id, &v, ctx->ei, NULL/*FIXME*/);
}else if(hres == DISP_E_UNKNOWNNAME) {
V_VT(&v) = VT_EMPTY;
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(exec_ctx_t *ctx)
{
const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
VARIANT *objv, *namev;
IDispatch *obj;
BSTR name;
DISPID id;
HRESULT hres;
TRACE("%x\n", arg);
namev = stack_pop(ctx);
objv = stack_pop(ctx);
hres = to_object(ctx->parser->script, objv, &obj);
VariantClear(objv);
if(SUCCEEDED(hres)) {
hres = to_string(ctx->parser->script, namev, ctx->ei, &name);
if(FAILED(hres))
IDispatch_Release(obj);
}
VariantClear(namev);
if(FAILED(hres))
return hres;
hres = disp_get_id(ctx->parser->script, obj, name, arg, &id);
SysFreeString(name);
if(FAILED(hres)) {
IDispatch_Release(obj);
if(hres == DISP_E_UNKNOWNNAME && !(arg & fdexNameEnsure)) {
obj = NULL;
id = JS_E_INVALID_PROPERTY;
}else {
return hres;
}
}
return stack_push_objid(ctx, obj, id);
}
/* ECMA-262 3rd Edition 11.2.1 */
static HRESULT interp_refval(exec_ctx_t *ctx)
{
IDispatch *disp;
VARIANT v;
DISPID id;
HRESULT hres;
TRACE("\n");
disp = stack_topn_objid(ctx, 0, &id);
if(!disp)
return throw_reference_error(ctx->parser->script, ctx->ei, JS_E_ILLEGAL_ASSIGN, NULL);
hres = disp_propget(ctx->parser->script, disp, id, &v, ctx->ei, NULL/*FIXME*/);
if(FAILED(hres))
return hres;
return stack_push(ctx, &v);
}
static void jsstack_to_dp(exec_ctx_t *ctx, unsigned arg_cnt, DISPPARAMS *dp)
{
VARIANT tmp;
unsigned i;
dp->cArgs = arg_cnt;
dp->rgdispidNamedArgs = NULL;
dp->cNamedArgs = 0;
assert(ctx->top >= arg_cnt);
for(i=1; i*2 <= arg_cnt; i++) {
tmp = ctx->stack[ctx->top-i];
ctx->stack[ctx->top-i] = ctx->stack[ctx->top-arg_cnt+i-1];
ctx->stack[ctx->top-arg_cnt+i-1] = tmp;
}
dp->rgvarg = ctx->stack + ctx->top-arg_cnt;
}
/* ECMA-262 3rd Edition 11.2.2 */
static HRESULT interp_new(exec_ctx_t *ctx)
{
const LONG arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
VARIANT *constr, v;
DISPPARAMS dp;
HRESULT hres;
TRACE("%d\n", arg);
constr = stack_topn(ctx, arg);
/* NOTE: Should use to_object here */
if(V_VT(constr) == VT_NULL)
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_OBJECT_EXPECTED, NULL);
else if(V_VT(constr) != VT_DISPATCH)
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_INVALID_ACTION, NULL);
else if(!V_DISPATCH(constr))
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_INVALID_PROPERTY, NULL);
jsstack_to_dp(ctx, arg, &dp);
hres = disp_call(ctx->parser->script, V_DISPATCH(constr), DISPID_VALUE,
DISPATCH_CONSTRUCT, &dp, &v, ctx->ei, NULL/*FIXME*/);
if(FAILED(hres))
return hres;
stack_popn(ctx, arg+1);
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 11.2.3 */
static HRESULT interp_call(exec_ctx_t *ctx)
{
const unsigned argn = ctx->parser->code->instrs[ctx->ip].arg1.uint;
const int do_ret = ctx->parser->code->instrs[ctx->ip].arg2.lng;
VARIANT v, *objv;
DISPPARAMS dp;
HRESULT hres;
TRACE("%d %d\n", argn, do_ret);
objv = stack_topn(ctx, argn);
if(V_VT(objv) != VT_DISPATCH)
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_INVALID_PROPERTY, NULL);
jsstack_to_dp(ctx, argn, &dp);
hres = disp_call(ctx->parser->script, V_DISPATCH(objv), DISPID_VALUE, DISPATCH_METHOD, &dp,
do_ret ? &v : NULL, ctx->ei, NULL/*FIXME*/);
if(FAILED(hres))
return hres;
stack_popn(ctx, argn+1);
return do_ret ? stack_push(ctx, &v) : S_OK;
}
/* ECMA-262 3rd Edition 11.2.3 */
static HRESULT interp_call_member(exec_ctx_t *ctx)
{
const unsigned argn = ctx->parser->code->instrs[ctx->ip].arg1.uint;
const int do_ret = ctx->parser->code->instrs[ctx->ip].arg2.lng;
IDispatch *obj;
DISPPARAMS dp;
VARIANT v;
DISPID id;
HRESULT hres;
TRACE("%d %d\n", argn, do_ret);
obj = stack_topn_objid(ctx, argn, &id);
if(!obj)
return throw_type_error(ctx->parser->script, ctx->ei, id, NULL);
jsstack_to_dp(ctx, argn, &dp);
hres = disp_call(ctx->parser->script, obj, id, DISPATCH_METHOD, &dp, do_ret ? &v : NULL, ctx->ei, NULL/*FIXME*/);
if(FAILED(hres))
return hres;
stack_popn(ctx, argn+2);
return do_ret ? stack_push(ctx, &v) : S_OK;
}
/* ECMA-262 3rd Edition 11.1.1 */
static HRESULT interp_this(exec_ctx_t *ctx)
{
VARIANT v;
TRACE("\n");
V_VT(&v) = VT_DISPATCH;
V_DISPATCH(&v) = ctx->this_obj;
IDispatch_AddRef(ctx->this_obj);
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 10.1.4 */
static HRESULT interp_ident(exec_ctx_t *ctx)
{
const BSTR arg = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
exprval_t exprval;
VARIANT v;
HRESULT hres;
TRACE("%s\n", debugstr_w(arg));
hres = identifier_eval(ctx->parser->script, arg, 0, ctx->ei, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type == EXPRVAL_INVALID)
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_UNDEFINED_VARIABLE, arg);
hres = exprval_to_value(ctx->parser->script, &exprval, ctx->ei, &v);
exprval_release(&exprval);
if(FAILED(hres))
return hres;
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 10.1.4 */
static HRESULT interp_identid(exec_ctx_t *ctx)
{
const BSTR arg = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
const unsigned flags = ctx->parser->code->instrs[ctx->ip].arg2.uint;
exprval_t exprval;
HRESULT hres;
TRACE("%s %x\n", debugstr_w(arg), flags);
hres = identifier_eval(ctx->parser->script, arg, flags, ctx->ei, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type != EXPRVAL_IDREF) {
WARN("invalid ref\n");
exprval_release(&exprval);
return stack_push_objid(ctx, NULL, JS_E_OBJECT_EXPECTED);
}
return stack_push_objid(ctx, exprval.u.idref.disp, exprval.u.idref.id);
}
/* ECMA-262 3rd Edition 7.8.1 */
static HRESULT interp_null(exec_ctx_t *ctx)
{
VARIANT v;
TRACE("\n");
V_VT(&v) = VT_NULL;
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 7.8.2 */
static HRESULT interp_bool(exec_ctx_t *ctx)
{
const LONG arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
TRACE("%s\n", arg ? "true" : "false");
return stack_push_bool(ctx, arg);
}
/* ECMA-262 3rd Edition 7.8.3 */
static HRESULT interp_int(exec_ctx_t *ctx)
{
const LONG arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
VARIANT v;
TRACE("%d\n", arg);
V_VT(&v) = VT_I4;
V_I4(&v) = arg;
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 7.8.3 */
static HRESULT interp_double(exec_ctx_t *ctx)
{
const double arg = *ctx->parser->code->instrs[ctx->ip].arg1.dbl;
VARIANT v;
TRACE("%lf\n", arg);
V_VT(&v) = VT_R8;
V_R8(&v) = arg;
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 7.8.4 */
static HRESULT interp_str(exec_ctx_t *ctx)
{
const WCHAR *str = ctx->parser->code->instrs[ctx->ip].arg1.str;
VARIANT v;
TRACE("%s\n", debugstr_w(str));
V_VT(&v) = VT_BSTR;
V_BSTR(&v) = SysAllocString(str);
if(!V_BSTR(&v))
return E_OUTOFMEMORY;
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 7.8 */
static HRESULT interp_regexp(exec_ctx_t *ctx)
{
const WCHAR *source = ctx->parser->code->instrs[ctx->ip].arg1.str;
const LONG flags = ctx->parser->code->instrs[ctx->ip].arg2.lng;
jsdisp_t *regexp;
VARIANT v;
HRESULT hres;
TRACE("%s %x\n", debugstr_w(source), flags);
hres = create_regexp(ctx->parser->script, source, strlenW(source), flags, &regexp);
if(FAILED(hres))
return hres;
var_set_jsdisp(&v, regexp);
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 11.1.4 */
static HRESULT interp_carray(exec_ctx_t *ctx)
{
const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
jsdisp_t *array;
VARIANT *v, r;
unsigned i;
HRESULT hres;
TRACE("%u\n", arg);
hres = create_array(ctx->parser->script, arg, &array);
if(FAILED(hres))
return hres;
i = arg;
while(i--) {
v = stack_pop(ctx);
hres = jsdisp_propput_idx(array, i, v, ctx->ei, NULL/*FIXME*/);
VariantClear(v);
if(FAILED(hres)) {
jsdisp_release(array);
return hres;
}
}
var_set_jsdisp(&r, array);
return stack_push(ctx, &r);
}
/* ECMA-262 3rd Edition 11.1.5 */
HRESULT interp_new_obj(exec_ctx_t *ctx)
{
jsdisp_t *obj;
VARIANT v;
HRESULT hres;
TRACE("\n");
hres = create_object(ctx->parser->script, NULL, &obj);
if(FAILED(hres))
return hres;
var_set_jsdisp(&v, obj);
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 11.1.5 */
HRESULT interp_obj_prop(exec_ctx_t *ctx)
{
const BSTR name = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
jsdisp_t *obj;
VARIANT *v;
HRESULT hres;
TRACE("%s\n", debugstr_w(name));
v = stack_pop(ctx);
assert(V_VT(stack_top(ctx)) == VT_DISPATCH);
obj = as_jsdisp(V_DISPATCH(stack_top(ctx)));
hres = jsdisp_propput_name(obj, name, v, ctx->ei, NULL/*FIXME*/);
VariantClear(v);
return hres;
}
/* ECMA-262 3rd Edition 11.11 */
static HRESULT interp_cnd_nz(exec_ctx_t *ctx)
{
const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
VARIANT_BOOL b;
HRESULT hres;
TRACE("\n");
hres = to_boolean(stack_top(ctx), &b);
if(FAILED(hres))
return hres;
if(b) {
ctx->ip = arg;
}else {
stack_popn(ctx, 1);
ctx->ip++;
}
return S_OK;
}
/* ECMA-262 3rd Edition 11.11 */
static HRESULT interp_cnd_z(exec_ctx_t *ctx)
{
const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
VARIANT_BOOL b;
HRESULT hres;
TRACE("\n");
hres = to_boolean(stack_top(ctx), &b);
if(FAILED(hres))
return hres;
if(b) {
stack_popn(ctx, 1);
ctx->ip++;
}else {
ctx->ip = arg;
}
return S_OK;
}
/* ECMA-262 3rd Edition 11.10 */
static HRESULT interp_or(exec_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_int(ctx, l|r);
}
/* ECMA-262 3rd Edition 11.10 */
static HRESULT interp_xor(exec_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_int(ctx, l^r);
}
/* ECMA-262 3rd Edition 11.10 */
static HRESULT interp_and(exec_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_int(ctx, l&r);
}
/* ECMA-262 3rd Edition 11.8.6 */
static HRESULT interp_instanceof(exec_ctx_t *ctx)
{
jsdisp_t *obj, *iter, *tmp = NULL;
VARIANT 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(V_VT(v) != VT_DISPATCH || !V_DISPATCH(v)) {
VariantClear(v);
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_FUNCTION_EXPECTED, NULL);
}
obj = iface_to_jsdisp((IUnknown*)V_DISPATCH(v));
IDispatch_Release(V_DISPATCH(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, ctx->ei, NULL/*FIXME*/);
}else {
hres = throw_type_error(ctx->parser->script, ctx->ei, JS_E_FUNCTION_EXPECTED, NULL);
}
jsdisp_release(obj);
if(FAILED(hres))
return hres;
v = stack_pop(ctx);
if(V_VT(&prot) == VT_DISPATCH) {
if(V_VT(v) == VT_DISPATCH)
tmp = iface_to_jsdisp((IUnknown*)V_DISPATCH(v));
for(iter = tmp; !ret && iter; iter = iter->prototype) {
hres = disp_cmp(V_DISPATCH(&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;
}
VariantClear(&prot);
VariantClear(v);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, ret);
}
/* ECMA-262 3rd Edition 11.8.7 */
static HRESULT interp_in(exec_ctx_t *ctx)
{
VARIANT *obj, *v;
DISPID id = 0;
BOOL ret;
BSTR str;
HRESULT hres;
TRACE("\n");
obj = stack_pop(ctx);
v = stack_pop(ctx);
if(V_VT(obj) != VT_DISPATCH || !V_DISPATCH(obj)) {
VariantClear(obj);
VariantClear(v);
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_OBJECT_EXPECTED, NULL);
}
hres = to_string(ctx->parser->script, v, ctx->ei, &str);
VariantClear(v);
if(FAILED(hres)) {
IDispatch_Release(V_DISPATCH(obj));
return hres;
}
hres = disp_get_id(ctx->parser->script, V_DISPATCH(obj), str, 0, &id);
IDispatch_Release(V_DISPATCH(obj));
SysFreeString(str);
if(SUCCEEDED(hres))
ret = TRUE;
else if(hres == DISP_E_UNKNOWNNAME)
ret = FALSE;
else
return hres;
return stack_push_bool(ctx, ret);
}
/* ECMA-262 3rd Edition 11.6.1 */
static HRESULT add_eval(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, VARIANT *retv)
{
VARIANT r, l;
HRESULT hres;
hres = to_primitive(ctx, lval, ei, &l, NO_HINT);
if(FAILED(hres))
return hres;
hres = to_primitive(ctx, rval, ei, &r, NO_HINT);
if(FAILED(hres)) {
VariantClear(&l);
return hres;
}
if(V_VT(&l) == VT_BSTR || V_VT(&r) == VT_BSTR) {
BSTR lstr = NULL, rstr = NULL;
if(V_VT(&l) == VT_BSTR)
lstr = V_BSTR(&l);
else
hres = to_string(ctx, &l, ei, &lstr);
if(SUCCEEDED(hres)) {
if(V_VT(&r) == VT_BSTR)
rstr = V_BSTR(&r);
else
hres = to_string(ctx, &r, ei, &rstr);
}
if(SUCCEEDED(hres)) {
int len1, len2;
len1 = SysStringLen(lstr);
len2 = SysStringLen(rstr);
V_VT(retv) = VT_BSTR;
V_BSTR(retv) = SysAllocStringLen(NULL, len1+len2);
memcpy(V_BSTR(retv), lstr, len1*sizeof(WCHAR));
memcpy(V_BSTR(retv)+len1, rstr, (len2+1)*sizeof(WCHAR));
}
if(V_VT(&l) != VT_BSTR)
SysFreeString(lstr);
if(V_VT(&r) != VT_BSTR)
SysFreeString(rstr);
}else {
VARIANT nl, nr;
hres = to_number(ctx, &l, ei, &nl);
if(SUCCEEDED(hres)) {
hres = to_number(ctx, &r, ei, &nr);
if(SUCCEEDED(hres))
num_set_val(retv, num_val(&nl) + num_val(&nr));
}
}
VariantClear(&r);
VariantClear(&l);
return hres;
}
/* ECMA-262 3rd Edition 11.6.1 */
static HRESULT interp_add(exec_ctx_t *ctx)
{
VARIANT *l, *r, ret;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s + %s\n", debugstr_variant(l), debugstr_variant(r));
hres = add_eval(ctx->parser->script, l, r, ctx->ei, &ret);
VariantClear(l);
VariantClear(r);
if(FAILED(hres))
return hres;
return stack_push(ctx, &ret);
}
/* ECMA-262 3rd Edition 11.6.2 */
static HRESULT interp_sub(exec_ctx_t *ctx)
{
VARIANT 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_number(ctx, num_val(&l)-num_val(&r));
}
/* ECMA-262 3rd Edition 11.5.1 */
static HRESULT interp_mul(exec_ctx_t *ctx)
{
VARIANT 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_number(ctx, num_val(&l)*num_val(&r));
}
/* ECMA-262 3rd Edition 11.5.2 */
static HRESULT interp_div(exec_ctx_t *ctx)
{
VARIANT 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_number(ctx, num_val(&l)/num_val(&r));
}
/* ECMA-262 3rd Edition 11.5.3 */
static HRESULT interp_mod(exec_ctx_t *ctx)
{
VARIANT 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_number(ctx, fmod(num_val(&l), num_val(&r)));
}
/* ECMA-262 3rd Edition 11.4.2 */
static HRESULT interp_delete(exec_ctx_t *ctx)
{
VARIANT *obj_var, *name_var;
IDispatchEx *dispex;
IDispatch *obj;
BSTR name;
BOOL ret;
HRESULT hres;
TRACE("\n");
name_var = stack_pop(ctx);
obj_var = stack_pop(ctx);
hres = to_object(ctx->parser->script, obj_var, &obj);
VariantClear(obj_var);
if(FAILED(hres)) {
VariantClear(name_var);
return hres;
}
hres = to_string(ctx->parser->script, name_var, ctx->ei, &name);
VariantClear(name_var);
if(FAILED(hres)) {
IDispatch_Release(obj);
return hres;
}
hres = IDispatch_QueryInterface(obj, &IID_IDispatchEx, (void**)&dispex);
if(SUCCEEDED(hres)) {
hres = IDispatchEx_DeleteMemberByName(dispex, name, make_grfdex(ctx->parser->script, fdexNameCaseSensitive));
ret = TRUE;
IDispatchEx_Release(dispex);
}else {
hres = S_OK;
ret = FALSE;
}
IDispatch_Release(obj);
SysFreeString(name);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, ret);
}
/* ECMA-262 3rd Edition 11.4.2 */
static HRESULT interp_delete_ident(exec_ctx_t *ctx)
{
const BSTR arg = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
IDispatchEx *dispex;
exprval_t exprval;
BOOL ret = FALSE;
HRESULT hres;
TRACE("%s\n", debugstr_w(arg));
hres = identifier_eval(ctx->parser->script, arg, 0, ctx->ei, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type != EXPRVAL_IDREF) {
FIXME("Unsupported exprval\n");
exprval_release(&exprval);
return E_NOTIMPL;
}
hres = IDispatch_QueryInterface(exprval.u.idref.disp, &IID_IDispatchEx, (void**)&dispex);
IDispatch_Release(exprval.u.idref.disp);
if(SUCCEEDED(hres)) {
hres = IDispatchEx_DeleteMemberByDispID(dispex, exprval.u.idref.id);
IDispatchEx_Release(dispex);
if(FAILED(hres))
return hres;
ret = TRUE;
}
return stack_push_bool(ctx, ret);
}
/* ECMA-262 3rd Edition 11.4.2 */
static HRESULT interp_void(exec_ctx_t *ctx)
{
VARIANT v;
TRACE("\n");
stack_popn(ctx, 1);
V_VT(&v) = VT_EMPTY;
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 11.4.3 */
static HRESULT typeof_string(VARIANT *v, const WCHAR **ret)
{
switch(V_VT(v)) {
case VT_EMPTY:
*ret = undefinedW;
break;
case VT_NULL:
*ret = objectW;
break;
case VT_BOOL:
*ret = booleanW;
break;
case VT_I4:
case VT_R8:
*ret = numberW;
break;
case VT_BSTR:
*ret = stringW;
break;
case VT_DISPATCH: {
jsdisp_t *dispex;
if(V_DISPATCH(v) && (dispex = iface_to_jsdisp((IUnknown*)V_DISPATCH(v)))) {
*ret = is_class(dispex, JSCLASS_FUNCTION) ? functionW : objectW;
jsdisp_release(dispex);
}else {
*ret = objectW;
}
break;
}
default:
FIXME("unhandled vt %d\n", V_VT(v));
return E_NOTIMPL;
}
return S_OK;
}
/* ECMA-262 3rd Edition 11.4.3 */
static HRESULT interp_typeofid(exec_ctx_t *ctx)
{
const WCHAR *ret;
IDispatch *obj;
VARIANT v;
DISPID id;
HRESULT hres;
static const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0};
TRACE("\n");
obj = stack_pop_objid(ctx, &id);
if(!obj)
return stack_push_string(ctx, undefinedW);
V_VT(&v) = VT_EMPTY;
hres = disp_propget(ctx->parser->script, obj, id, &v, ctx->ei, NULL/*FIXME*/);
IDispatch_Release(obj);
if(FAILED(hres))
return stack_push_string(ctx, unknownW);
hres = typeof_string(&v, &ret);
VariantClear(&v);
if(FAILED(hres))
return hres;
return stack_push_string(ctx, ret);
}
/* ECMA-262 3rd Edition 11.4.3 */
static HRESULT interp_typeofident(exec_ctx_t *ctx)
{
const BSTR arg = ctx->parser->code->instrs[ctx->ip].arg1.bstr;
exprval_t exprval;
const WCHAR *ret;
VARIANT v;
HRESULT hres;
TRACE("%s\n", debugstr_w(arg));
hres = identifier_eval(ctx->parser->script, arg, 0, ctx->ei, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type == EXPRVAL_INVALID) {
hres = stack_push_string(ctx, undefinedW);
exprval_release(&exprval);
return hres;
}
hres = exprval_to_value(ctx->parser->script, &exprval, ctx->ei, &v);
exprval_release(&exprval);
if(FAILED(hres))
return hres;
hres = typeof_string(&v, &ret);
VariantClear(&v);
if(FAILED(hres))
return hres;
return stack_push_string(ctx, ret);
}
/* ECMA-262 3rd Edition 11.4.3 */
static HRESULT interp_typeof(exec_ctx_t *ctx)
{
const WCHAR *ret;
VARIANT *v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = typeof_string(v, &ret);
VariantClear(v);
if(FAILED(hres))
return hres;
return stack_push_string(ctx, ret);
}
/* ECMA-262 3rd Edition 11.4.7 */
static HRESULT interp_minus(exec_ctx_t *ctx)
{
VARIANT n;
HRESULT hres;
TRACE("\n");
hres = stack_pop_number(ctx, &n);
if(FAILED(hres))
return hres;
return stack_push_number(ctx, -num_val(&n));
}
/* ECMA-262 3rd Edition 11.4.6 */
static HRESULT interp_tonum(exec_ctx_t *ctx)
{
VARIANT *v, num;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_number(ctx->parser->script, v, ctx->ei, &num);
VariantClear(v);
if(FAILED(hres))
return hres;
return stack_push(ctx, &num);
}
/* ECMA-262 3rd Edition 11.3.1 */
static HRESULT interp_postinc(exec_ctx_t *ctx)
{
const int arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
IDispatch *obj;
DISPID id;
VARIANT v;
HRESULT hres;
TRACE("%d\n", arg);
obj = stack_pop_objid(ctx, &id);
if(!obj)
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_OBJECT_EXPECTED, NULL);
hres = disp_propget(ctx->parser->script, obj, id, &v, ctx->ei, NULL/*FIXME*/);
if(SUCCEEDED(hres)) {
VARIANT n, inc;
hres = to_number(ctx->parser->script, &v, ctx->ei, &n);
if(SUCCEEDED(hres)) {
num_set_val(&inc, num_val(&n)+(double)arg);
hres = disp_propput(ctx->parser->script, obj, id, &inc, ctx->ei, NULL/*FIXME*/);
}
if(FAILED(hres))
VariantClear(&v);
}
IDispatch_Release(obj);
if(FAILED(hres))
return hres;
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 11.4.4, 11.4.5 */
static HRESULT interp_preinc(exec_ctx_t *ctx)
{
const int arg = ctx->parser->code->instrs[ctx->ip].arg1.lng;
IDispatch *obj;
DISPID id;
VARIANT v;
HRESULT hres;
TRACE("%d\n", arg);
obj = stack_pop_objid(ctx, &id);
if(!obj)
return throw_type_error(ctx->parser->script, ctx->ei, JS_E_OBJECT_EXPECTED, NULL);
hres = disp_propget(ctx->parser->script, obj, id, &v, ctx->ei, NULL/*FIXME*/);
if(SUCCEEDED(hres)) {
VARIANT n;
hres = to_number(ctx->parser->script, &v, ctx->ei, &n);
VariantClear(&v);
if(SUCCEEDED(hres)) {
num_set_val(&v, num_val(&n)+(double)arg);
hres = disp_propput(ctx->parser->script, obj, id, &v, ctx->ei, NULL/*FIXME*/);
}
}
IDispatch_Release(obj);
if(FAILED(hres))
return hres;
return stack_push(ctx, &v);
}
/* ECMA-262 3rd Edition 11.9.3 */
static HRESULT equal_values(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsexcept_t *ei, BOOL *ret)
{
if(V_VT(lval) == V_VT(rval) || (is_num_vt(V_VT(lval)) && is_num_vt(V_VT(rval))))
return equal2_values(lval, rval, ret);
/* FIXME: NULL disps should be handled in more general way */
if(V_VT(lval) == VT_DISPATCH && !V_DISPATCH(lval)) {
VARIANT v;
V_VT(&v) = VT_NULL;
return equal_values(ctx, &v, rval, ei, ret);
}
if(V_VT(rval) == VT_DISPATCH && !V_DISPATCH(rval)) {
VARIANT v;
V_VT(&v) = VT_NULL;
return equal_values(ctx, lval, &v, ei, ret);
}
if((V_VT(lval) == VT_NULL && V_VT(rval) == VT_EMPTY) ||
(V_VT(lval) == VT_EMPTY && V_VT(rval) == VT_NULL)) {
*ret = TRUE;
return S_OK;
}
if(V_VT(lval) == VT_BSTR && is_num_vt(V_VT(rval))) {
VARIANT v;
HRESULT hres;
hres = to_number(ctx, lval, ei, &v);
if(FAILED(hres))
return hres;
return equal_values(ctx, &v, rval, ei, ret);
}
if(V_VT(rval) == VT_BSTR && is_num_vt(V_VT(lval))) {
VARIANT v;
HRESULT hres;
hres = to_number(ctx, rval, ei, &v);
if(FAILED(hres))
return hres;
return equal_values(ctx, lval, &v, ei, ret);
}
if(V_VT(rval) == VT_BOOL) {
VARIANT v;
V_VT(&v) = VT_I4;
V_I4(&v) = V_BOOL(rval) ? 1 : 0;
return equal_values(ctx, lval, &v, ei, ret);
}
if(V_VT(lval) == VT_BOOL) {
VARIANT v;
V_VT(&v) = VT_I4;
V_I4(&v) = V_BOOL(lval) ? 1 : 0;
return equal_values(ctx, &v, rval, ei, ret);
}
if(V_VT(rval) == VT_DISPATCH && (V_VT(lval) == VT_BSTR || is_num_vt(V_VT(lval)))) {
VARIANT v;
HRESULT hres;
hres = to_primitive(ctx, rval, ei, &v, NO_HINT);
if(FAILED(hres))
return hres;
hres = equal_values(ctx, lval, &v, ei, ret);
VariantClear(&v);
return hres;
}
if(V_VT(lval) == VT_DISPATCH && (V_VT(rval) == VT_BSTR || is_num_vt(V_VT(rval)))) {
VARIANT v;
HRESULT hres;
hres = to_primitive(ctx, lval, ei, &v, NO_HINT);
if(FAILED(hres))
return hres;
hres = equal_values(ctx, &v, rval, ei, ret);
VariantClear(&v);
return hres;
}
*ret = FALSE;
return S_OK;
}
/* ECMA-262 3rd Edition 11.9.1 */
static HRESULT interp_eq(exec_ctx_t *ctx)
{
VARIANT *l, *r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s == %s\n", debugstr_variant(l), debugstr_variant(r));
hres = equal_values(ctx->parser->script, l, r, ctx->ei, &b);
VariantClear(l);
VariantClear(r);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, b);
}
/* ECMA-262 3rd Edition 11.9.2 */
static HRESULT interp_neq(exec_ctx_t *ctx)
{
VARIANT *l, *r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s != %s\n", debugstr_variant(l), debugstr_variant(r));
hres = equal_values(ctx->parser->script, l, r, ctx->ei, &b);
VariantClear(l);
VariantClear(r);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, !b);
}
/* ECMA-262 3rd Edition 11.9.4 */
static HRESULT interp_eq2(exec_ctx_t *ctx)
{
VARIANT *l, *r;
BOOL b;
HRESULT hres;
TRACE("\n");
r = stack_pop(ctx);
l = stack_pop(ctx);
hres = equal2_values(r, l, &b);
VariantClear(l);
VariantClear(r);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, b);
}
/* ECMA-262 3rd Edition 11.9.5 */
static HRESULT interp_neq2(exec_ctx_t *ctx)
{
VARIANT *l, *r;
BOOL b;
HRESULT hres;
TRACE("\n");
r = stack_pop(ctx);
l = stack_pop(ctx);
hres = equal2_values(r, l, &b);
VariantClear(l);
VariantClear(r);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, !b);
}
/* ECMA-262 3rd Edition 11.8.5 */
static HRESULT less_eval(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, BOOL greater, jsexcept_t *ei, BOOL *ret)
{
VARIANT l, r, ln, rn;
HRESULT hres;
hres = to_primitive(ctx, lval, ei, &l, NO_HINT);
if(FAILED(hres))
return hres;
hres = to_primitive(ctx, rval, ei, &r, NO_HINT);
if(FAILED(hres)) {
VariantClear(&l);
return hres;
}
if(V_VT(&l) == VT_BSTR && V_VT(&r) == VT_BSTR) {
*ret = (strcmpW(V_BSTR(&l), V_BSTR(&r)) < 0) ^ greater;
SysFreeString(V_BSTR(&l));
SysFreeString(V_BSTR(&r));
return S_OK;
}
hres = to_number(ctx, &l, ei, &ln);
VariantClear(&l);
if(SUCCEEDED(hres))
hres = to_number(ctx, &r, ei, &rn);
VariantClear(&r);
if(FAILED(hres))
return hres;
if(V_VT(&ln) == VT_I4 && V_VT(&rn) == VT_I4) {
*ret = (V_I4(&ln) < V_I4(&rn)) ^ greater;
}else {
DOUBLE ld = num_val(&ln);
DOUBLE rd = num_val(&rn);
*ret = !isnan(ld) && !isnan(rd) && ((ld < rd) ^ greater);
}
return S_OK;
}
/* ECMA-262 3rd Edition 11.8.1 */
static HRESULT interp_lt(exec_ctx_t *ctx)
{
VARIANT *l, *r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s < %s\n", debugstr_variant(l), debugstr_variant(r));
hres = less_eval(ctx->parser->script, l, r, FALSE, ctx->ei, &b);
VariantClear(l);
VariantClear(r);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, b);
}
/* ECMA-262 3rd Edition 11.8.1 */
static HRESULT interp_lteq(exec_ctx_t *ctx)
{
VARIANT *l, *r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s <= %s\n", debugstr_variant(l), debugstr_variant(r));
hres = less_eval(ctx->parser->script, r, l, TRUE, ctx->ei, &b);
VariantClear(l);
VariantClear(r);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, b);
}
/* ECMA-262 3rd Edition 11.8.2 */
static HRESULT interp_gt(exec_ctx_t *ctx)
{
VARIANT *l, *r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s > %s\n", debugstr_variant(l), debugstr_variant(r));
hres = less_eval(ctx->parser->script, r, l, FALSE, ctx->ei, &b);
VariantClear(l);
VariantClear(r);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, b);
}
/* ECMA-262 3rd Edition 11.8.4 */
static HRESULT interp_gteq(exec_ctx_t *ctx)
{
VARIANT *l, *r;
BOOL b;
HRESULT hres;
r = stack_pop(ctx);
l = stack_pop(ctx);
TRACE("%s >= %s\n", debugstr_variant(l), debugstr_variant(r));
hres = less_eval(ctx->parser->script, l, r, TRUE, ctx->ei, &b);
VariantClear(l);
VariantClear(r);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, b);
}
/* ECMA-262 3rd Edition 11.4.8 */
static HRESULT interp_bneg(exec_ctx_t *ctx)
{
VARIANT *v, r;
INT i;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_int32(ctx->parser->script, v, ctx->ei, &i);
VariantClear(v);
if(FAILED(hres))
return hres;
V_VT(&r) = VT_I4;
V_I4(&r) = ~i;
return stack_push(ctx, &r);
}
/* ECMA-262 3rd Edition 11.4.9 */
static HRESULT interp_neg(exec_ctx_t *ctx)
{
VARIANT *v;
VARIANT_BOOL b;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_boolean(v, &b);
VariantClear(v);
if(FAILED(hres))
return hres;
return stack_push_bool(ctx, !b);
}
/* ECMA-262 3rd Edition 11.7.1 */
static HRESULT interp_lshift(exec_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_int(ctx, l << (r&0x1f));
}
/* ECMA-262 3rd Edition 11.7.2 */
static HRESULT interp_rshift(exec_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_int(ctx, l >> (r&0x1f));
}
/* ECMA-262 3rd Edition 11.7.3 */
static HRESULT interp_rshift2(exec_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_int(ctx, l >> (r&0x1f));
}
/* ECMA-262 3rd Edition 11.13.1 */
static HRESULT interp_assign(exec_ctx_t *ctx)
{
IDispatch *disp;
DISPID id;
VARIANT *v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
disp = stack_pop_objid(ctx, &id);
if(!disp)
return throw_reference_error(ctx->parser->script, ctx->ei, JS_E_ILLEGAL_ASSIGN, NULL);
hres = disp_propput(ctx->parser->script, disp, id, v, ctx->ei, NULL/*FIXME*/);
IDispatch_Release(disp);
if(FAILED(hres)) {
VariantClear(v);
return hres;
}
return stack_push(ctx, v);
}
static HRESULT interp_undefined(exec_ctx_t *ctx)
{
VARIANT v;
TRACE("\n");
V_VT(&v) = VT_EMPTY;
return stack_push(ctx, &v);
}
static HRESULT interp_jmp(exec_ctx_t *ctx)
{
const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
TRACE("\n");
ctx->ip = arg;
return S_OK;
}
static HRESULT interp_jmp_z(exec_ctx_t *ctx)
{
const unsigned arg = ctx->parser->code->instrs[ctx->ip].arg1.uint;
VARIANT_BOOL b;
VARIANT *v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_boolean(v, &b);
VariantClear(v);
if(FAILED(hres))
return hres;
if(b)
ctx->ip++;
else
ctx->ip = arg;
return S_OK;
}
static HRESULT interp_pop(exec_ctx_t *ctx)
{
TRACE("\n");
stack_popn(ctx, 1);
return S_OK;
}
static HRESULT interp_ret(exec_ctx_t *ctx)
{
TRACE("\n");
ctx->ip = -1;
return S_OK;
}
static HRESULT interp_tree(exec_ctx_t *ctx)
{
instr_t *instr = ctx->parser->code->instrs+ctx->ip;
VARIANT v;
HRESULT hres;
TRACE("\n");
hres = stat_eval(ctx->parser->script, instr->arg1.stat, ctx->rt, &v);
if(FAILED(hres))
return hres;
return stack_push(ctx, &v);
}
typedef HRESULT (*op_func_t)(exec_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 HRESULT unwind_exception(exec_ctx_t *ctx)
{
except_frame_t *except_frame;
VARIANT except_val;
BSTR ident;
HRESULT hres;
except_frame = ctx->except_frame;
ctx->except_frame = except_frame->next;
assert(except_frame->stack_top <= ctx->top);
stack_popn(ctx, ctx->top - except_frame->stack_top);
while(except_frame->scope != ctx->scope_chain)
scope_pop(&ctx->scope_chain);
ctx->ip = except_frame->catch_off;
assert(ctx->rt->type == RT_NORMAL);
except_val = ctx->rt->ei.var;
memset(&ctx->rt->ei, 0, sizeof(ctx->rt->ei));
ident = except_frame->ident;
heap_free(except_frame);
if(ident) {
jsdisp_t *scope_obj;
hres = create_dispex(ctx->parser->script, NULL, NULL, &scope_obj);
if(SUCCEEDED(hres)) {
hres = jsdisp_propput_name(scope_obj, ident, &except_val, &ctx->rt->ei, NULL/*FIXME*/);
if(FAILED(hres))
jsdisp_release(scope_obj);
}
VariantClear(&except_val);
if(FAILED(hres))
return hres;
hres = scope_push(ctx->scope_chain, scope_obj, &ctx->scope_chain);
jsdisp_release(scope_obj);
}else {
VARIANT v;
hres = stack_push(ctx, &except_val);
if(FAILED(hres))
return hres;
hres = stack_push_bool(ctx, FALSE);
if(FAILED(hres))
return hres;
V_VT(&v) = VT_EMPTY;
hres = stack_push(ctx, &v);
}
return hres;
}
HRESULT compiled_statement_eval(script_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
{
exec_ctx_t *exec_ctx = ctx->exec_ctx;
except_frame_t *prev_except_frame;
unsigned prev_ip, prev_top;
scope_chain_t *prev_scope;
return_type_t *prev_rt;
jsexcept_t *prev_ei;
jsop_t op;
HRESULT hres = S_OK;
TRACE("\n");
if(stat->instr_off == -1) {
hres = compile_subscript_stat(exec_ctx->parser, stat, FALSE, &stat->instr_off);
if(FAILED(hres))
return hres;
}
prev_rt = exec_ctx->rt;
prev_top = exec_ctx->top;
prev_scope = exec_ctx->scope_chain;
prev_except_frame = exec_ctx->except_frame;
prev_ip = exec_ctx->ip;
prev_ei = exec_ctx->ei;
exec_ctx->ip = stat->instr_off;
exec_ctx->rt = rt;
exec_ctx->ei = &rt->ei;
exec_ctx->except_frame = NULL;
while(exec_ctx->ip != -1 && exec_ctx->rt->type == RT_NORMAL) {
op = exec_ctx->parser->code->instrs[exec_ctx->ip].op;
hres = op_funcs[op](exec_ctx);
if(FAILED(hres)) {
TRACE("EXCEPTION\n");
if(!exec_ctx->except_frame)
break;
hres = unwind_exception(exec_ctx);
if(FAILED(hres))
break;
}else {
exec_ctx->ip += op_move[op];
}
}
exec_ctx->rt = prev_rt;
exec_ctx->ip = prev_ip;
exec_ctx->ei = prev_ei;
exec_ctx->except_frame = prev_except_frame;
if(FAILED(hres) || rt->type != RT_NORMAL) {
while(exec_ctx->scope_chain != prev_scope)
scope_pop(&exec_ctx->scope_chain);
}
if(FAILED(hres)) {
stack_popn(exec_ctx, exec_ctx->top-prev_top);
return hres;
}
assert(exec_ctx->top == prev_top+1 || exec_ctx->top == prev_top);
assert(exec_ctx->scope_chain == prev_scope);
if(exec_ctx->top == prev_top)
V_VT(ret) = VT_EMPTY;
else
*ret = *stack_pop(exec_ctx);
return S_OK;
}
static HRESULT expr_eval(script_ctx_t *ctx, expression_t *expr, jsexcept_t *ei, VARIANT *ret)
{
exec_ctx_t *exec_ctx = ctx->exec_ctx;
unsigned prev_ip, prev_top;
jsexcept_t *prev_ei;
jsop_t op;
HRESULT hres = S_OK;
TRACE("\n");
if(expr->instr_off == -1) {
hres = compile_subscript(ctx->exec_ctx->parser, expr, &expr->instr_off);
if(FAILED(hres))
return hres;
}
prev_top = exec_ctx->top;
prev_ip = exec_ctx->ip;
prev_ei = exec_ctx->ei;
exec_ctx->ip = expr->instr_off;
exec_ctx->ei = ei;
while(exec_ctx->ip != -1) {
op = exec_ctx->parser->code->instrs[exec_ctx->ip].op;
hres = op_funcs[op](exec_ctx);
if(FAILED(hres))
break;
exec_ctx->ip += op_move[op];
}
exec_ctx->ip = prev_ip;
exec_ctx->ei = prev_ei;
if(FAILED(hres)) {
stack_popn(exec_ctx, exec_ctx->top-prev_top);
return hres;
}
assert(exec_ctx->top == prev_top+1);
if(exec_ctx->top == prev_top)
V_VT(ret) = VT_EMPTY;
else
*ret = *stack_pop(exec_ctx);
return S_OK;
}
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