forked from OpenXTalk-org/OpenXTalk-Community-DPE
/
exec-engine.cpp
2103 lines (1714 loc) · 58.5 KB
/
exec-engine.cpp
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/* Copyright (C) 2003-2015 LiveCode Ltd.
This file is part of LiveCode.
LiveCode is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License v3 as published by the Free
Software Foundation.
LiveCode 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 General Public License
for more details.
You should have received a copy of the GNU General Public License
along with LiveCode. If not see <http://www.gnu.org/licenses/>. */
#include "prefix.h"
#include "globdefs.h"
#include "filedefs.h"
#include "objdefs.h"
#include "parsedef.h"
#include "mcio.h"
#include "globals.h"
#include "scriptpt.h"
#include "mode.h"
#include "handler.h"
#include "osspec.h"
#include "uidc.h"
#include "license.h"
#include "debug.h"
#include "param.h"
#include "property.h"
#include "hndlrlst.h"
#include "stack.h"
#include "card.h"
#include "exec.h"
#include "util.h"
#include "express.h"
#include "variable.h"
#include "chunk.h"
#include "securemode.h"
#include "dispatch.h"
#include "uuid.h"
#include "libscript/script.h"
#include "license.h"
////////////////////////////////////////////////////////////////////////////////
struct MCEngineNumberFormat
{
uint2 fw;
uint2 trailing;
uint2 force;
};
static void MCEngineNumberFormatParse(MCExecContext& ctxt, MCStringRef p_input, MCEngineNumberFormat& r_output)
{
MCU_setnumberformat(p_input, r_output . fw, r_output . trailing, r_output . force);
}
static void MCEngineNumberFormatFormat(MCExecContext& ctxt, const MCEngineNumberFormat& p_input, MCStringRef& r_output)
{
if (MCU_getnumberformat(p_input . fw, p_input . trailing, p_input . force, r_output))
return;
ctxt . Throw();
}
static void MCEngineNumberFormatFree(MCExecContext& ctxt, MCEngineNumberFormat& p_input)
{
}
static MCExecCustomTypeInfo _kMCEngineNumberFormatTypeInfo =
{
"Engine.NumberFormat",
sizeof(MCEngineNumberFormat),
(void *)MCEngineNumberFormatParse,
(void *)MCEngineNumberFormatFormat,
(void *)MCEngineNumberFormatFree,
};
//////////
// AL-2014-10-29: [[ Bug 13704 ]] Security permissions set type should use bits rather than bit-shifted values
static MCExecSetTypeElementInfo _kMCEngineSecurityCategoriesElementInfo[] =
{
{ "disk", kMCSecureModeTypeDiskBit },
{ "network", kMCSecureModeTypeNetworkBit },
{ "process", kMCSecureModeTypeProcessBit },
{ "registryRead", kMCSecureModeTypeRegistryReadBit },
{ "registryWrite", kMCSecureModeTypeRegistryWriteBit },
{ "printing", kMCSecureModeTypePrintBit },
{ "privacy", kMCSecureModeTypePrivacyBit },
{ "applescript", kMCSecureModeTypeApplescriptBit },
{ "doalternate", kMCSecureModeTypeDoalternateBit },
{ "external", kMCSecureModeTypeExternalBit },
{ "extension", kMCSecureModeTypeExtensionBit },
};
static MCExecSetTypeInfo _kMCEngineSecurityCategoriesTypeInfo =
{
"Engine.SecurityCategories",
sizeof(_kMCEngineSecurityCategoriesElementInfo) / sizeof(MCExecSetTypeElementInfo),
_kMCEngineSecurityCategoriesElementInfo
};
////////////////////////////////////////////////////////////////////////////////
MCExecCustomTypeInfo *kMCEngineNumberFormatTypeInfo = &_kMCEngineNumberFormatTypeInfo;
MCExecSetTypeInfo *kMCEngineSecurityCategoriesTypeInfo = &_kMCEngineSecurityCategoriesTypeInfo;
////////////////////////////////////////////////////////////////////////////////
extern const LT command_table[];
extern const uint4 command_table_size;
extern const Cvalue *constant_table;
extern const uint4 constant_table_size;
extern const LT factor_table[];
extern const uint4 factor_table_size;
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalVersion(MCExecContext& ctxt, MCNameRef& r_name)
{
r_name = MCValueRetain(MCN_version_string);
}
void MCEngineEvalBuildNumber(MCExecContext& ctxt, integer_t& r_build_number)
{
r_build_number = MCbuildnumber;
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalPlatform(MCExecContext& ctxt, MCNameRef& r_name)
{
r_name = MCValueRetain(MCN_platform_string);
}
void MCEngineEvalEnvironment(MCExecContext& ctxt, MCNameRef& r_name)
{
r_name = MCValueRetain(MCModeGetEnvironment());
}
void MCEngineEvalMachine(MCExecContext& ctxt, MCStringRef& r_string)
{
if (MCS_getmachine(r_string))
return;
ctxt.Throw();
}
void MCEngineEvalProcessor(MCExecContext& ctxt, MCStringRef& r_string)
{
if (MCS_getprocessor(r_string))
return;
ctxt.Throw();
}
void MCEngineEvalSystemVersion(MCExecContext& ctxt, MCStringRef& r_string)
{
if (MCS_getsystemversion(r_string))
return;
ctxt.Throw();
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalCommandNames(MCExecContext& ctxt, MCStringRef& r_string)
{
bool t_success = true;
MCAutoListRef t_list;
t_success = MCListCreateMutable('\n', &t_list);
for (uint32_t i = 0 ; t_success && i < command_table_size ; i++)
if (command_table[i].type == TT_STATEMENT)
t_success = MCListAppendCString(*t_list, command_table[i].token);
if (t_success)
t_success = MCListCopyAsString(*t_list, r_string);
if (t_success)
return;
ctxt . Throw();
}
//////////
void MCEngineEvalConstantNames(MCExecContext& ctxt, MCStringRef& r_string)
{
bool t_success = true;
MCAutoListRef t_list;
t_success = MCListCreateMutable('\n', &t_list);
for (uint32_t i = 0 ; t_success && i < constant_table_size ; i++)
t_success = MCListAppendCString(*t_list, constant_table[i].token);
if (t_success)
t_success = MCListCopyAsString(*t_list, r_string);
if (t_success)
return;
ctxt . Throw();
}
//////////
void MCEngineEvalFunctionNames(MCExecContext& ctxt, MCStringRef& r_string)
{
bool t_success = true;
MCAutoListRef t_list;
t_success = MCListCreateMutable('\n', &t_list);
for (uint32_t i = 0 ; t_success && i < factor_table_size ; i++)
if (factor_table[i].type == TT_FUNCTION)
t_success = MCListAppendCString(*t_list, factor_table[i].token);
if (t_success)
t_success = MCListCopyAsString(*t_list, r_string);
if (t_success)
return;
ctxt . Throw();
}
//////////
void MCEngineEvalPropertyNames(MCExecContext& ctxt, MCStringRef& r_string)
{
bool t_success = true;
MCAutoListRef t_list;
t_success = MCListCreateMutable('\n', &t_list);
for (uint32_t i = 0 ; t_success && i < factor_table_size ; i++)
if (factor_table[i].type == TT_PROPERTY)
t_success = MCListAppendCString(*t_list, factor_table[i].token);
if (t_success)
t_success = MCListCopyAsString(*t_list, r_string);
if (t_success)
return;
ctxt . Throw();
}
//////////
void MCEngineEvalGlobalNames(MCExecContext& ctxt, MCStringRef& r_string)
{
MCAutoListRef t_list;
bool t_success = true;
t_success = MCListCreateMutable(',', &t_list);
for (MCVariable *v = MCglobals; t_success && v != nil; v = v->getnext())
if (!v->isclear() || v->isarray())
t_success = MCListAppend(*t_list, v->getname());
if (t_success && MCListCopyAsString(*t_list, r_string))
return;
ctxt.Throw();
}
void MCEngineEvalLocalNames(MCExecContext& ctxt, MCStringRef& r_string)
{
// MW-2013-11-15: [[ Bug 11277 ]] Server mode may call this outwith a handler.
MCAutoListRef t_list;
if (ctxt.GetHandler() != nil)
{
if (ctxt.GetHandler()->getvarnames(false, &t_list) && MCListCopyAsString(*t_list, r_string))
return;
}
else
{
if (ctxt.GetHandlerList()->getlocalnames(&t_list) && MCListCopyAsString(*t_list, r_string))
return;
}
ctxt.Throw();
}
void MCEngineEvalVariableNames(MCExecContext& ctxt, MCStringRef& r_string)
{
// MW-2013-11-15: [[ Bug 11277 ]] If no handler, then process the handler list
// (server script scope).
MCAutoListRef t_list;
if (ctxt.GetHandler() != nil)
{
if (ctxt.GetHandler()->getvarnames(true, &t_list) && MCListCopyAsString(*t_list, r_string))
return;
}
else
{
MCAutoListRef t_local_list, t_global_list;
if (MCListCreateMutable('\n', &t_list) &&
ctxt.GetHandlerList()->getlocalnames(&t_local_list) &&
MCListAppend(*t_list, *t_local_list) &&
ctxt.GetHandlerList()->getglobalnames(&t_global_list) &&
MCListAppend(*t_list, *t_global_list) &&
MCListCopyAsString(*t_list, r_string))
return;
}
ctxt.Throw();
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalParam(MCExecContext& ctxt, integer_t p_index, MCValueRef& r_value)
{
if (MCValueCopy(ctxt.GetHandler()->getparam(p_index), r_value))
return;
ctxt.Throw();
}
void MCEngineEvalParamCount(MCExecContext& ctxt, integer_t& r_count)
{
// MW-2013-11-15: [[ Bug 11277 ]] If we don't have a handler then 'the param'
// makes no sense so just return 0.
if (ctxt.GetHandler() != nil)
r_count = ctxt.GetHandler()->getnparams();
else
r_count = 0;
}
void MCEngineEvalParams(MCExecContext& ctxt, MCStringRef& r_string)
{
MCAutoStringRef t_string;
MCHandler* t_handler = ctxt.GetHandler();
// MW-2013-11-15: [[ Bug 11277 ]] If we don't have a handler then 'the params'
// makes no sense so just return empty.
if (t_handler == nil)
{
r_string = MCValueRetain(kMCEmptyString);
return;
}
unichar_t t_space_char, t_quote_char, t_comma_char, t_open_bracket_char, t_close_bracket_char;
t_space_char = ' ';
t_quote_char = '\"';
t_comma_char = ',';
t_open_bracket_char = '(';
t_close_bracket_char = ')';
bool t_success = true;
t_success = MCStringCreateMutable(0, &t_string);
if (t_success)
t_success = MCStringAppend(*t_string, MCNameGetString(t_handler->getname())) &&
MCStringAppendChars(*t_string, (t_handler->gettype() == HT_FUNCTION) ? &t_open_bracket_char : &t_space_char, 1);
uindex_t t_count = t_handler->getnparams();
for (uinteger_t i = 1; t_success && i <= t_count; i++)
{
MCAutoStringRef t_param_string;
t_success = ctxt.ForceToString(t_handler->getparam(i), &t_param_string) &&
MCStringAppendChars(*t_string, &t_quote_char, 1) &&
MCStringAppend(*t_string, *t_param_string) &&
MCStringAppendChars(*t_string, &t_quote_char, 1);
if (t_success && i < t_count)
t_success = MCStringAppendChars(*t_string, &t_comma_char, 1);
}
if (t_success && t_handler->gettype() == HT_FUNCTION)
t_success = MCStringAppendChars(*t_string, &t_close_bracket_char, 1);
if (t_success)
t_success = MCStringCopy(*t_string, r_string);
if (t_success)
return;
ctxt.Throw();
}
//////////
void MCEngineEvalResult(MCExecContext& ctxt, MCValueRef& r_value)
{
if (MCValueCopy(MCresult->getvalueref(), r_value))
return;
ctxt.Throw();
}
////////////////////////////////////////////////////////////////////////////////
bool MCEngineListObjectIds(MCExecContext& ctxt, MCObjectList *p_objects, MCListRef& r_list)
{
MCAutoListRef t_list;
if (!MCListCreateMutable('\n', &t_list))
return false;
if (p_objects != nil)
{
MCObjectList *t_obj_ptr = p_objects;
do
{
if (!t_obj_ptr->getremoved())
{
MCAutoValueRef t_id_string;
if (!t_obj_ptr -> getobject() -> names(P_LONG_ID, &t_id_string))
return false;
if (!MCListAppend(*t_list, *t_id_string))
return false;
}
t_obj_ptr = t_obj_ptr->next();
}
while (t_obj_ptr != p_objects);
}
return MCListCopy(*t_list, r_list);
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalBackScripts(MCExecContext& ctxt, MCStringRef& r_string)
{
MCAutoListRef t_list;
if (MCEngineListObjectIds(ctxt, MCbackscripts, &t_list) &&
MCListCopyAsString(*t_list, r_string))
return;
ctxt.Throw();
}
void MCEngineEvalFrontScripts(MCExecContext& ctxt, MCStringRef& r_string)
{
MCAutoListRef t_list;
if (MCEngineListObjectIds(ctxt, MCfrontscripts, &t_list) &&
MCListCopyAsString(*t_list, r_string))
return;
ctxt.Throw();
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalPendingMessages(MCExecContext& ctxt, MCStringRef& r_string)
{
MCAutoListRef t_list;
if (MCscreen->listmessages(ctxt, &t_list) && MCListCopyAsString(*t_list, r_string))
return;
ctxt.Throw();
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalInterrupt(MCExecContext& ctxt, bool& r_bool)
{
r_bool = MCinterrupt == True;
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalMe(MCExecContext& ctxt, MCStringRef& r_string)
{
MCObject *t_target = ctxt.GetObject();
if (t_target->gettype() == CT_FIELD || t_target->gettype() == CT_BUTTON)
t_target->getstringprop(ctxt, 0, P_TEXT, False, r_string);
else
t_target->getstringprop(ctxt, 0, P_NAME, False, r_string);
}
//////////
void MCEngineEvalTarget(MCExecContext& ctxt, MCStringRef& r_string)
{
if (!MCtargetptr)
r_string = MCValueRetain(kMCEmptyString);
else
MCtargetptr -> getstringprop(ctxt, MCtargetptr.getPart(), P_NAME, False, r_string);
}
void MCEngineEvalTargetContents(MCExecContext& ctxt, MCStringRef& r_string)
{
if (!MCtargetptr)
r_string = MCValueRetain(kMCEmptyString);
else
MCtargetptr -> getstringprop(ctxt, MCtargetptr.getPart(), MCtargetptr -> gettype() == CT_FIELD ? P_TEXT : P_NAME, False, r_string);
}
//////////
void MCEngineEvalOwner(MCExecContext& ctxt, MCObjectPtr p_object, MCStringRef& r_string)
{
p_object . object ->getstringprop(ctxt, p_object . part_id, P_OWNER, False, r_string);
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalScriptLimits(MCExecContext& ctxt, MCStringRef& r_string)
{
// TODO - create as list?
if (MCStringFormat(r_string, "%d,%d,%d,%d", MClicenseparameters.script_limit, MClicenseparameters.do_limit, MClicenseparameters.using_limit, MClicenseparameters.insert_limit))
return;
ctxt.Throw();
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalSysError(MCExecContext& ctxt, uinteger_t& r_error)
{
r_error = MCS_getsyserror();
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineEvalValue(MCExecContext& ctxt, MCStringRef p_script, MCValueRef& r_value)
{
if (p_script == nil || MCStringGetLength(p_script) == 0)
{
r_value = MCValueRetain(kMCEmptyString);
return;
}
// SN-2015-06-03: [[ Bug 11277 ]] MCHandler::eval refactored
ctxt.eval(ctxt, p_script, r_value);
if (ctxt.HasError())
ctxt.LegacyThrow(EE_VALUE_ERROR, p_script);
}
void MCEngineEvalValueWithObject(MCExecContext& ctxt, MCStringRef p_script, MCObjectPtr p_object, MCValueRef& r_value)
{
if (MCStringGetLength(p_script) == 0)
{
r_value = MCValueRetain(kMCEmptyString);
return;
}
MCExecContext t_ctxt(ctxt);
t_ctxt.SetObject(p_object . object);
t_ctxt.SetParentScript(nil);
p_object . object -> eval(t_ctxt, p_script, r_value);
if (t_ctxt.HasError())
ctxt.LegacyThrow(EE_VALUE_ERROR, p_script);
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineExecSet(MCExecContext& ctxt, MCProperty *p_target, MCValueRef p_value)
{
MCExecValue t_value;
t_value . valueref_value = MCValueRetain(p_value);
t_value . type = kMCExecValueTypeValueRef;
p_target -> set(ctxt, t_value);
if (ctxt . HasError())
{
ctxt . LegacyThrow(EE_SET_BADSET);
return;
}
}
void MCEngineExecGet(MCExecContext& ctxt, /* take */ MCExecValue& p_value)
{
ctxt . GiveValueToIt(p_value);
}
void MCEngineExecPutOutput(MCExecContext& ctxt, MCStringRef p_value)
{
if (!MCS_put(ctxt, kMCSPutOutput, p_value))
ctxt . LegacyThrow(EE_PUT_CANTSETINTO);
}
void MCEngineExecPutOutputUnicode(MCExecContext& ctxt, MCDataRef p_value)
{
MCAutoStringRef t_string;
if (!MCStringCreateWithChars((const unichar_t*)MCDataGetBytePtr(p_value), MCDataGetLength(p_value)/sizeof(unichar_t), &t_string)
|| !MCS_put(ctxt, kMCSPutOutput, *t_string))
ctxt . LegacyThrow(EE_PUT_CANTSETINTO);
}
void MCEngineExecPutIntoVariable(MCExecContext& ctxt, MCValueRef p_value, int p_where, MCVariableChunkPtr p_var)
{
p_var . variable -> clearuql();
if (p_var . chunk == CT_UNDEFINED)
{
// SN-2014-04-11 [[ FasterVariables ]] Now chosing from here the position where to add a string on a variable
if (p_where == PT_INTO)
p_var . variable -> set(ctxt, p_value, kMCVariableSetInto);
else if (p_where == PT_AFTER)
p_var . variable -> set(ctxt, p_value, kMCVariableSetAfter);
else
p_var . variable -> set(ctxt, p_value, kMCVariableSetBefore);
}
else
{
if (p_where == PT_BEFORE)
p_var . mark . finish = p_var . mark . start;
else if (p_where == PT_AFTER)
p_var . mark . start = p_var . mark . finish;
// AL-2014-06-12: [[ Bug 12195 ]] If either the mark or the value is non-data, then convert to string.
// Otherwise we get data loss for 'put <unicode string> after byte <n> of tVar'
if (MCValueGetTypeCode(p_var . mark . text) == kMCValueTypeCodeData &&
MCValueGetTypeCode(p_value) == kMCValueTypeCodeData)
{
// SN-2014-09-03: [[ Bug 13314 ]] MCMarkedText::changed updated to store the number of chars appended
if (p_var . mark . changed != 0)
{
MCAutoDataRef t_data;
if (!MCDataMutableCopyAndRelease((MCDataRef)p_var . mark . text, &t_data))
return;
/* UNCHECKED */ MCDataReplace(*t_data, MCRangeMakeMinMax(p_var . mark . start, p_var . mark . finish), (MCDataRef)p_value);
p_var . variable -> set(ctxt, *t_data, kMCVariableSetInto);
}
else
{
// AL-2014-11-12: [[ Bug 13987 ]] Release the mark here, so that eg 'put x into byte y of z'
// can take advantage of the fact that z has only one reference. Otherwise it requires a copy
MCValueRelease(p_var . mark . text);
p_var . variable -> replace(ctxt, (MCDataRef)p_value, MCRangeMakeMinMax(p_var . mark . start, p_var . mark . finish));
}
}
else
{
MCAutoStringRef t_value_string;
if (!ctxt . ConvertToString(p_value, &t_value_string))
{
ctxt . Throw();
return;
}
// AL-2015-04-01: [[ Bug 15139 ]] Make sure the mark text is the correct value type.
MCValueRef t_mark_text;
if (!ctxt . ConvertToString(p_var . mark . text, (MCStringRef &)t_mark_text))
{
ctxt . Throw();
return;
}
// SN-2015-07-27: [[ Bug 15646 ]] MCExecContext::ConvertToString
// already makes a copy. We want to make sure that p_var.mark.text
// has 0 reference when exiting this function, so p_var.mark.text
// must become t_mark_text, not get a copy of it.
MCValueRelease(p_var . mark . text);
p_var . mark . text = t_mark_text;
// SN-2014-09-03: [[ Bug 13314 ]] MCMarkedText::changed updated to store the number of chars appended
if (p_var . mark . changed != 0)
{
MCAutoStringRef t_string;
if (!MCStringMutableCopyAndRelease((MCStringRef)p_var . mark . text, &t_string))
return;
/* UNCHECKED */ MCStringReplace(*t_string, MCRangeMakeMinMax(p_var . mark . start, p_var . mark . finish), *t_value_string);
p_var . variable -> set(ctxt, *t_string, kMCVariableSetInto);
}
else
{
// AL-2014-11-12: [[ Bug 13987 ]] Release the mark here, so that eg 'put x into char y of z'
// can take advantage of the fact that z has only one reference. Otherwise it requires a copy
MCValueRelease(p_var . mark . text);
p_var . variable -> replace(ctxt, *t_value_string, MCRangeMakeMinMax(p_var . mark . start, p_var . mark . finish));
}
}
}
}
void MCEngineExecPutIntoVariable(MCExecContext& ctxt, MCExecValue p_value, int p_where, MCVariableChunkPtr p_var)
{
p_var . variable -> clearuql();
if (p_var . chunk == CT_UNDEFINED)
{
// SN-2014-04-11 [[ FasterVariables ]] Now chosing from here the position where to add a string on a variable
if (p_where == PT_INTO)
p_var . variable -> give_value(ctxt, p_value, kMCVariableSetInto);
else if (p_where == PT_AFTER)
p_var . variable -> give_value(ctxt, p_value, kMCVariableSetAfter);
else
p_var . variable -> give_value(ctxt, p_value, kMCVariableSetBefore);
}
else
{
if (MCValueGetTypeCode(p_var . mark . text) == kMCValueTypeCodeData &&
MCExecTypeIsValueRef(p_value.type) &&
MCValueGetTypeCode(p_value.valueref_value) == kMCValueTypeCodeData)
{
// AL-2014-11-20: Make sure the incoming exec value is released.
MCAutoDataRef t_value_data;
MCExecTypeConvertAndReleaseAlways(ctxt, p_value . type, &p_value, kMCExecValueTypeDataRef, &(&t_value_data));
if (ctxt . HasError())
return;
MCEngineExecPutIntoVariable(ctxt, *t_value_data, p_where, p_var);
return;
}
MCAutoStringRef t_value_string;
MCExecTypeConvertAndReleaseAlways(ctxt, p_value . type, &p_value, kMCExecValueTypeStringRef, &(&t_value_string));
if (ctxt . HasError())
return;
MCEngineExecPutIntoVariable(ctxt, *t_value_string, p_where, p_var);
}
}
void MCEngineExecReturn(MCExecContext& ctxt, MCValueRef p_value)
{
ctxt.SetTheResultToValue(p_value);
}
void MCEngineExecReturnValue(MCExecContext& ctxt, MCValueRef p_value)
{
ctxt.SetTheReturnValue(p_value);
}
void MCEngineExecReturnError(MCExecContext& ctxt, MCValueRef p_value)
{
ctxt.SetTheReturnError(p_value);
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineExecDo(MCExecContext& ctxt, MCStringRef p_script, int p_line, int p_pos)
{
Boolean added = False;
if (MCnexecutioncontexts < MAX_CONTEXTS)
{
ctxt.SetLineAndPos(p_line, p_pos);
MCexecutioncontexts[MCnexecutioncontexts++] = &ctxt;
added = True;
}
// SN-2015-06-03: [[ Bug 11277 ]] MCHandler::doscript refactored
ctxt.doscript(ctxt, p_script, p_line, p_pos);
if (added)
MCnexecutioncontexts--;
}
void MCEngineExecDoInCaller(MCExecContext& ctxt, MCStringRef p_script, int p_line, int p_pos)
{
Boolean added = False;
if (MCnexecutioncontexts < MAX_CONTEXTS)
{
ctxt.SetLineAndPos(p_line, p_pos);
MCexecutioncontexts[MCnexecutioncontexts++] = &ctxt;
added = True;
}
if (MCnexecutioncontexts < 2)
{
if (added)
MCnexecutioncontexts--;
ctxt . LegacyThrow(EE_DO_NOCALLER);
return;
}
MCExecContext *caller = MCexecutioncontexts[MCnexecutioncontexts - 2];
// SN-2015-06-03: [[ Bug 11277 ]] MCHandler::doscript refactored
caller -> doscript(*caller, p_script, p_line, p_pos);
if (added)
MCnexecutioncontexts--;
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineExecQuit(MCExecContext& ctxt, integer_t p_retcode)
{
// MW-2011-06-22: [[ SERVER ]] Don't send messages in server-mode.
#ifndef _SERVER
if (MCdefaultstackptr && !MCdefaultstackptr->getstate(CS_DELETE_STACK))
{
switch(MCdefaultstackptr->getcard()->message(MCM_shut_down_request))
{
case ES_PASS:
case ES_NOT_HANDLED:
break;
default:
return;
}
// IM-2013-05-01: [[ BZ 10586 ]] remove #ifdefs so this message is sent
// here on Android in the same place as (almost) everything else
MCdefaultstackptr->getcard()->message(MCM_shut_down);
}
#endif
MCretcode = p_retcode;
MCquit = True;
MCquitisexplicit = True;
MCexitall = True;
MCtracestackptr = nil;
MCtraceabort = True;
MCtracereturn = True;
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineExecCancelMessage(MCExecContext& ctxt, integer_t p_id)
{
if (p_id != 0)
MCscreen->cancelmessageid(p_id);
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineExecInsertScriptOfObjectInto(MCExecContext& ctxt, MCObject *p_script, bool p_in_front)
{
if (!p_script->parsescript(True))
{
ctxt . LegacyThrow(EE_INSERT_BADTARGET);
return;
}
MCObjectList *&listptr = p_in_front ? MCfrontscripts : MCbackscripts;
p_script->removefrom(listptr);
uint4 count = 0;
if (listptr != NULL)
{
MCObjectList *olptr = listptr;
do
{
if (!olptr->getremoved())
count++;
olptr = olptr->next();
}
while (olptr != listptr);
}
if (MClicenseparameters . insert_limit > 0 && count >= MClicenseparameters . insert_limit)
{
ctxt . LegacyThrow(EE_INSERT_NOTLICENSED);
return;
}
MCObjectList *olptr = new (nothrow) MCObjectList(p_script);
olptr->insertto(listptr);
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineExecRemoveAllScriptsFrom(MCExecContext& ctxt, bool p_in_front)
{
MCObjectList *listptr = p_in_front ? MCfrontscripts : MCbackscripts;
MCObjectList *lptr = listptr;
do
{
lptr->setremoved(True);
lptr = lptr->next();
}
while (lptr != listptr);
}
void MCEngineExecRemoveScriptOfObjectFrom(MCExecContext& ctxt, MCObject *p_script, bool p_in_front)
{
p_script->removefrom(p_in_front ? MCfrontscripts : MCbackscripts);
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineExecWaitFor(MCExecContext& ctxt, double p_delay, int p_units, bool p_messages)
{
MCU_play();
if (p_units == F_UNDEFINED)
{
if (MCscreen->wait(p_delay, p_messages, p_messages) || MCabortscript)
ctxt . LegacyThrow(EE_WAIT_ABORT);
return;
}
switch (p_units)
{
case F_MILLISECS:
p_delay /= 1000.0;
break;
case F_TICKS:
p_delay /= 60.0;
break;
default:
break;
}
if (MCscreen->wait(p_delay, p_messages, False))
{
ctxt . LegacyThrow(EE_WAIT_ABORT);
return;
}
}
void MCEngineExecWaitUntil(MCExecContext& ctxt, MCExpression *p_condition, bool p_messages)
{
while(True)
{
bool t_stop;
MCU_play();
if (!ctxt . EvalExprAsBool(p_condition, EE_WAIT_BADEXP, t_stop))
return;
if (t_stop == true)
return;
if (MCscreen->wait(WAIT_INTERVAL, p_messages, True))
{
ctxt . LegacyThrow(EE_WAIT_ABORT);
return;
}
}
}
void MCEngineExecWaitWhile(MCExecContext& ctxt, MCExpression *p_condition, bool p_messages)
{
while(True)
{
bool t_continue;
MCU_play();
if (!ctxt . EvalExprAsBool(p_condition, EE_WAIT_BADEXP, t_continue))
return;
if (t_continue == false)
return;
if (MCscreen->wait(WAIT_INTERVAL, p_messages, True))
{
ctxt . LegacyThrow(EE_WAIT_ABORT);
return;
}
}
}
////////////////////////////////////////////////////////////////////////////////
void MCEngineExecDeleteVariable(MCExecContext& ctxt, MCVarref *p_target)
{
if (!p_target->dofree(ctxt))
ctxt . Throw();
}
void MCEngineExecDeleteVariableChunks(MCExecContext& ctxt, MCVariableChunkPtr *p_chunks, uindex_t p_chunk_count)
{
for(uindex_t i = 0; i < p_chunk_count; i++)
{
/*
MCAutoStringRef t_string;
if (!ctxt . EvalExprAsMutableStringRef(p_chunks[i] . variable, EE_ENGINE_DELETE_BADVARCHUNK, &t_string))
return;
if (MCStringReplace(*t_string, MCRangeMakeMinMax(p_chunks[i] . mark . start, p_chunks[i] . mark . finish), kMCEmptyString))
{
p_chunks[i] . variable -> set(ctxt, *t_string, kMCVariableSetInto);
} */
// SN-2014-04-11 [[ FasterVariables ]] Deletiong of the content of a variable is now done without copying
p_chunks[i] . variable -> deleterange(ctxt, MCRangeMakeMinMax(p_chunks[i] . mark . start, p_chunks[i] . mark . finish));
}
}
///////////////////////////////////////////////////////////////////////////////
void MCEngineExecStartUsingStack(MCExecContext& ctxt, MCStack *p_stack)
{
uint2 i = MCnusing;
while (i--)
if (MCusing[i] == p_stack)
{
MCnusing--;
while (i < MCnusing)
{
MCusing[i] = MCusing[i + 1];
i++;
}
break;
}