554 lines
15 KiB
C
554 lines
15 KiB
C
/*
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* Copyright 2008 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "jscript.h"
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#include "engine.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(jscript);
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typedef struct {
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DispatchEx dispex;
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builtin_invoke_t value_proc;
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DWORD flags;
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source_elements_t *source;
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parameter_t *parameters;
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scope_chain_t *scope_chain;
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parser_ctx_t *parser;
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const WCHAR *src_str;
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DWORD src_len;
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DWORD length;
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} FunctionInstance;
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static const WCHAR prototypeW[] = {'p','r','o','t','o','t', 'y', 'p','e',0};
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static const WCHAR lengthW[] = {'l','e','n','g','t','h',0};
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static const WCHAR toStringW[] = {'t','o','S','t','r','i','n','g',0};
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static const WCHAR applyW[] = {'a','p','p','l','y',0};
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static const WCHAR callW[] = {'c','a','l','l',0};
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static IDispatch *get_this(DISPPARAMS *dp)
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{
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DWORD i;
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for(i=0; i < dp->cNamedArgs; i++) {
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if(dp->rgdispidNamedArgs[i] == DISPID_THIS) {
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if(V_VT(dp->rgvarg+i) == VT_DISPATCH)
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return V_DISPATCH(dp->rgvarg+i);
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WARN("This is not VT_DISPATCH\n");
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return NULL;
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}
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}
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TRACE("no this passed\n");
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return NULL;
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}
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static HRESULT init_parameters(DispatchEx *var_disp, FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
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jsexcept_t *ei, IServiceProvider *caller)
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{
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parameter_t *param;
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VARIANT var_empty;
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DWORD cargs, i=0;
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HRESULT hres;
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V_VT(&var_empty) = VT_EMPTY;
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cargs = dp->cArgs - dp->cNamedArgs;
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for(param = function->parameters; param; param = param->next) {
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hres = jsdisp_propput_name(var_disp, param->identifier, lcid,
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i < cargs ? dp->rgvarg + dp->cArgs-1 - i : &var_empty,
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ei, caller);
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if(FAILED(hres))
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return hres;
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i++;
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}
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return S_OK;
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}
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HRESULT Arguments_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
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{
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FIXME("\n");
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return E_NOTIMPL;
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}
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static const builtin_info_t Arguments_info = {
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JSCLASS_ARGUMENTS,
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{NULL, Arguments_value, 0},
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0, NULL,
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NULL,
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NULL
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};
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static HRESULT create_arguments(script_ctx_t *ctx, LCID lcid, DISPPARAMS *dp,
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jsexcept_t *ei, IServiceProvider *caller, DispatchEx **ret)
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{
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DispatchEx *args;
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VARIANT var;
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DWORD i;
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HRESULT hres;
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args = heap_alloc_zero(sizeof(DispatchEx));
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if(!args)
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return E_OUTOFMEMORY;
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hres = init_dispex_from_constr(args, ctx, &Arguments_info, ctx->object_constr);
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if(FAILED(hres)) {
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heap_free(args);
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return hres;
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}
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for(i=0; i < arg_cnt(dp); i++) {
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hres = jsdisp_propput_idx(args, i, lcid, get_arg(dp,i), ei, caller);
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if(FAILED(hres))
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break;
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}
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if(SUCCEEDED(hres)) {
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V_VT(&var) = VT_I4;
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V_I4(&var) = arg_cnt(dp);
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hres = jsdisp_propput_name(args, lengthW, lcid, &var, ei, caller);
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}
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if(FAILED(hres)) {
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jsdisp_release(args);
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return hres;
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}
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*ret = args;
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return S_OK;
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}
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static HRESULT create_var_disp(FunctionInstance *function, LCID lcid, DISPPARAMS *dp, jsexcept_t *ei,
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IServiceProvider *caller, DispatchEx **ret)
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{
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DispatchEx *var_disp, *arg_disp;
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HRESULT hres;
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static const WCHAR argumentsW[] = {'a','r','g','u','m','e','n','t','s',0};
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hres = create_dispex(function->dispex.ctx, NULL, NULL, &var_disp);
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if(FAILED(hres))
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return hres;
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hres = create_arguments(function->dispex.ctx, lcid, dp, ei, caller, &arg_disp);
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if(SUCCEEDED(hres)) {
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VARIANT var;
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V_VT(&var) = VT_DISPATCH;
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V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(arg_disp);
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hres = jsdisp_propput_name(var_disp, argumentsW, lcid, &var, ei, caller);
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jsdisp_release(arg_disp);
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}
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if(SUCCEEDED(hres))
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hres = init_parameters(var_disp, function, lcid, dp, ei, caller);
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if(FAILED(hres)) {
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jsdisp_release(var_disp);
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return hres;
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}
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*ret = var_disp;
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return S_OK;
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}
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static HRESULT invoke_source(FunctionInstance *function, IDispatch *this_obj, LCID lcid, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
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{
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DispatchEx *var_disp;
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exec_ctx_t *exec_ctx;
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scope_chain_t *scope;
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HRESULT hres;
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if(!function->source) {
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FIXME("no source\n");
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return E_FAIL;
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}
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hres = create_var_disp(function, lcid, dp, ei, caller, &var_disp);
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if(FAILED(hres))
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return hres;
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hres = scope_push(function->scope_chain, var_disp, &scope);
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if(SUCCEEDED(hres)) {
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hres = create_exec_ctx(this_obj, var_disp, scope, &exec_ctx);
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scope_release(scope);
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}
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if(FAILED(hres))
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return hres;
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hres = exec_source(exec_ctx, function->parser, function->source, ei, retv);
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exec_release(exec_ctx);
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return hres;
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}
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static HRESULT invoke_function(FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
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{
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IDispatch *this_obj;
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if(!(this_obj = get_this(dp)))
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this_obj = (IDispatch*)_IDispatchEx_(function->dispex.ctx->script_disp);
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return invoke_source(function, this_obj, lcid, dp, retv, ei, caller);
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}
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static HRESULT invoke_constructor(FunctionInstance *function, LCID lcid, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
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{
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DispatchEx *this_obj;
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HRESULT hres;
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hres = create_object(function->dispex.ctx, &function->dispex, &this_obj);
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if(FAILED(hres))
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return hres;
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hres = invoke_source(function, (IDispatch*)_IDispatchEx_(this_obj), lcid, dp, retv, ei, caller);
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if(FAILED(hres)) {
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jsdisp_release(this_obj);
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return hres;
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}
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V_VT(retv) = VT_DISPATCH;
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V_DISPATCH(retv) = (IDispatch*)_IDispatchEx_(this_obj);
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return S_OK;
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}
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static HRESULT invoke_value_proc(FunctionInstance *function, LCID lcid, WORD flags, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
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{
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DispatchEx *this_obj = NULL;
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IDispatch *this_disp;
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HRESULT hres;
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this_disp = get_this(dp);
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if(this_disp)
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this_obj = iface_to_jsdisp((IUnknown*)this_disp);
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hres = function->value_proc(this_obj ? this_obj : function->dispex.ctx->script_disp, lcid,
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flags, dp, retv, ei, caller);
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if(this_obj)
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jsdisp_release(this_obj);
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return hres;
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}
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static HRESULT function_to_string(FunctionInstance *function, BSTR *ret)
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{
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BSTR str;
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if(function->value_proc) {
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FIXME("Builtin functions not implemented\n");
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return E_NOTIMPL;
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}
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str = SysAllocStringLen(function->src_str, function->src_len);
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if(!str)
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return E_OUTOFMEMORY;
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*ret = str;
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return S_OK;
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}
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static HRESULT Function_length(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
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{
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FunctionInstance *This = (FunctionInstance*)dispex;
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TRACE("%p %d\n", This, This->length);
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switch(flags) {
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case DISPATCH_PROPERTYGET:
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V_VT(retv) = VT_I4;
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V_I4(retv) = This->length;
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break;
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default:
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FIXME("unimplemented flags %x\n", flags);
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return E_NOTIMPL;
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}
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return S_OK;
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}
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static HRESULT Function_toString(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
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{
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FunctionInstance *function;
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BSTR str;
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HRESULT hres;
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TRACE("\n");
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if(!is_class(dispex, JSCLASS_FUNCTION))
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return throw_type_error(dispex->ctx, ei, IDS_NOT_FUNC, NULL);
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function = (FunctionInstance*)dispex;
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hres = function_to_string(function, &str);
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if(FAILED(hres))
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return hres;
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if(retv) {
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V_VT(retv) = VT_BSTR;
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V_BSTR(retv) = str;
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}else {
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SysFreeString(str);
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}
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return S_OK;
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}
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static HRESULT Function_apply(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
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{
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FIXME("\n");
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return E_NOTIMPL;
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}
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static HRESULT Function_call(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
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{
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FIXME("\n");
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return E_NOTIMPL;
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}
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HRESULT Function_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *caller)
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{
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FunctionInstance *function;
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TRACE("\n");
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if(dispex->builtin_info->class != JSCLASS_FUNCTION) {
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ERR("dispex is not a function\n");
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return E_FAIL;
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}
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function = (FunctionInstance*)dispex;
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switch(flags) {
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case DISPATCH_METHOD:
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if(function->value_proc)
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return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
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return invoke_function(function, lcid, dp, retv, ei, caller);
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case DISPATCH_PROPERTYGET: {
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HRESULT hres;
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BSTR str;
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hres = function_to_string(function, &str);
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if(FAILED(hres))
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return hres;
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V_VT(retv) = VT_BSTR;
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V_BSTR(retv) = str;
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break;
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}
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case DISPATCH_CONSTRUCT:
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if(function->value_proc)
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return invoke_value_proc(function, lcid, flags, dp, retv, ei, caller);
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return invoke_constructor(function, lcid, dp, retv, ei, caller);
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default:
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FIXME("not implemented flags %x\n", flags);
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return E_NOTIMPL;
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}
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return S_OK;
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}
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static void Function_destructor(DispatchEx *dispex)
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{
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FunctionInstance *This = (FunctionInstance*)dispex;
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if(This->parser)
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parser_release(This->parser);
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if(This->scope_chain)
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scope_release(This->scope_chain);
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heap_free(This);
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}
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static const builtin_prop_t Function_props[] = {
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{applyW, Function_apply, PROPF_METHOD|2},
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{callW, Function_call, PROPF_METHOD|1},
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{lengthW, Function_length, 0},
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{toStringW, Function_toString, PROPF_METHOD}
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};
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static const builtin_info_t Function_info = {
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JSCLASS_FUNCTION,
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{NULL, Function_value, 0},
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sizeof(Function_props)/sizeof(*Function_props),
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Function_props,
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Function_destructor,
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NULL
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};
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static HRESULT FunctionConstr_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
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{
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FIXME("\n");
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return E_NOTIMPL;
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}
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static HRESULT FunctionProt_value(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
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VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
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{
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FIXME("\n");
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return E_NOTIMPL;
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}
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static HRESULT create_function(script_ctx_t *ctx, const builtin_info_t *builtin_info, DWORD flags,
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BOOL funcprot, DispatchEx *prototype, FunctionInstance **ret)
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{
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FunctionInstance *function;
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HRESULT hres;
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function = heap_alloc_zero(sizeof(FunctionInstance));
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if(!function)
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return E_OUTOFMEMORY;
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if(funcprot)
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hres = init_dispex(&function->dispex, ctx, &Function_info, prototype);
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else if(builtin_info)
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hres = init_dispex_from_constr(&function->dispex, ctx, builtin_info, ctx->function_constr);
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else
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hres = init_dispex_from_constr(&function->dispex, ctx, &Function_info, ctx->function_constr);
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if(FAILED(hres))
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return hres;
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function->flags = flags;
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function->length = flags & PROPF_ARGMASK;
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*ret = function;
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return S_OK;
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}
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static HRESULT set_prototype(script_ctx_t *ctx, DispatchEx *dispex, DispatchEx *prototype)
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{
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jsexcept_t jsexcept;
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VARIANT var;
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V_VT(&var) = VT_DISPATCH;
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V_DISPATCH(&var) = (IDispatch*)_IDispatchEx_(prototype);
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memset(&jsexcept, 0, sizeof(jsexcept));
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return jsdisp_propput_name(dispex, prototypeW, ctx->lcid, &var, &jsexcept, NULL/*FIXME*/);
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}
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HRESULT create_builtin_function(script_ctx_t *ctx, builtin_invoke_t value_proc,
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const builtin_info_t *builtin_info, DWORD flags, DispatchEx *prototype, DispatchEx **ret)
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{
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FunctionInstance *function;
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HRESULT hres;
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hres = create_function(ctx, builtin_info, flags, FALSE, NULL, &function);
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if(FAILED(hres))
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return hres;
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hres = set_prototype(ctx, &function->dispex, prototype);
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if(FAILED(hres)) {
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jsdisp_release(&function->dispex);
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return hres;
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}
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function->value_proc = value_proc;
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*ret = &function->dispex;
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return S_OK;
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}
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HRESULT create_source_function(parser_ctx_t *ctx, parameter_t *parameters, source_elements_t *source,
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scope_chain_t *scope_chain, const WCHAR *src_str, DWORD src_len, DispatchEx **ret)
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{
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FunctionInstance *function;
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DispatchEx *prototype;
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parameter_t *iter;
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DWORD length = 0;
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HRESULT hres;
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hres = create_object(ctx->script, NULL, &prototype);
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if(FAILED(hres))
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return hres;
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hres = create_function(ctx->script, NULL, PROPF_CONSTR, FALSE, NULL, &function);
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if(SUCCEEDED(hres)) {
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hres = set_prototype(ctx->script, &function->dispex, prototype);
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if(FAILED(hres))
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jsdisp_release(&function->dispex);
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}
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jsdisp_release(prototype);
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if(FAILED(hres))
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return hres;
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function->source = source;
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function->parameters = parameters;
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if(scope_chain) {
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scope_addref(scope_chain);
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function->scope_chain = scope_chain;
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}
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parser_addref(ctx);
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function->parser = ctx;
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for(iter = parameters; iter; iter = iter->next)
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length++;
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function->length = length;
|
|
|
|
function->src_str = src_str;
|
|
function->src_len = src_len;
|
|
|
|
*ret = &function->dispex;
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT init_function_constr(script_ctx_t *ctx, DispatchEx *object_prototype)
|
|
{
|
|
FunctionInstance *prot, *constr;
|
|
HRESULT hres;
|
|
|
|
hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, object_prototype, &prot);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
prot->value_proc = FunctionProt_value;
|
|
|
|
hres = create_function(ctx, NULL, PROPF_CONSTR, TRUE, &prot->dispex, &constr);
|
|
if(SUCCEEDED(hres)) {
|
|
constr->value_proc = FunctionConstr_value;
|
|
hres = set_prototype(ctx, &constr->dispex, &prot->dispex);
|
|
if(FAILED(hres))
|
|
jsdisp_release(&constr->dispex);
|
|
}
|
|
jsdisp_release(&prot->dispex);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
ctx->function_constr = &constr->dispex;
|
|
return S_OK;
|
|
}
|