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1561 lines (1345 loc) · 38.5 KB
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/* Copyright (C) 2003-2013 Runtime Revolution 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 "objdefs.h"
#include "parsedef.h"
#include "filedefs.h"
#include "scriptpt.h"
//#include "execpt.h"
#include "cmds.h"
#include "handler.h"
#include "chunk.h"
#include "mcerror.h"
#include "globals.h"
#include "osspec.h"
#include "exec.h"
#include "syntax.h"
#include "variable.h"
#include <float.h>
////////////////////////////////////////////////////////////////////////
//
inline bool MCMathOpCommandComputeOverlap(MCExpression *p_source, MCExpression *p_dest, MCVarref *p_destvar)
{
MCVarref *t_src_ref;
t_src_ref = p_source -> getrootvarref();
if (t_src_ref == NULL)
return false;
if (p_destvar != NULL)
return t_src_ref -> rootmatches(p_destvar);
MCVarref *t_dst_ref;
t_dst_ref = p_dest -> getrootvarref();
if (t_dst_ref == NULL)
return false;
return t_src_ref -> rootmatches(t_dst_ref);
}
//
MCAdd::~MCAdd()
{
delete source;
delete dest;
// MW-2013-08-01: [[ Bug 10925 ]] Only delete the destvar varref if dest is NULL,
// otherwise its owned by dest.
if (dest == NULL)
delete destvar;
}
Parse_stat MCAdd::parse(MCScriptPoint &sp)
{
initpoint(sp);
if (sp.parseexp(False, True, &source) != PS_NORMAL)
{
MCperror->add(PE_ADD_BADEXP, sp);
return PS_ERROR;
}
if (sp.skip_token(SP_FACTOR, TT_TO) == PS_ERROR)
{
MCperror->add(PE_ADD_NOTO, sp);
return PS_ERROR;
}
Symbol_type type;
// MW-2011-06-22: [[ SERVER ]] Update to use SP findvar method to take into account
// execution outwith a handler.
if (sp.next(type) != PS_NORMAL || type != ST_ID || sp.findvar(sp.gettoken_nameref(), &destvar) != PS_NORMAL)
{
sp.backup();
dest = new MCChunk(True);
if (dest->parse(sp, False) != PS_NORMAL)
{
MCperror->add(PE_ADD_BADDEST, sp);
return PS_ERROR;
}
}
else
destvar->parsearray(sp);
// MW-2013-08-01: [[ Bug 10925 ]] If the dest chunk is just a var, extract the varref.
if (dest != NULL && dest -> isvarchunk())
destvar = dest -> getrootvarref();
overlap = MCMathOpCommandComputeOverlap(source, dest, destvar);
return PS_NORMAL;
}
// MW-2007-07-03: [[ Bug 5123 ]] - Strict array checking modification
// Here the source can be an array or number so we use 'tona'.
void MCAdd::exec_ctxt(MCExecContext &ctxt)
{
#ifdef /* MCAdd */ LEGACY_EXEC
MCVariable *t_dst_var;
MCVariableValue *t_dst_ref;
t_dst_ref = NULL;
if (source->eval(ep) != ES_NORMAL || ep.tona() != ES_NORMAL)
{
MCeerror->add(EE_ADD_BADSOURCE, line, pos);
return ES_ERROR;
}
if (overlap)
ep . grab();
if (destvar != NULL && destvar -> evalcontainer(ep, t_dst_var, t_dst_ref) != ES_NORMAL)
{
MCeerror->add(EE_ADD_BADDEST, line, pos);
return ES_ERROR;
}
if (t_dst_ref != NULL && t_dst_ref -> is_array())
{
if (t_dst_ref->factorarray(ep, O_PLUS) != ES_NORMAL)
{
MCeerror->add(EE_ADD_BADARRAY, line, pos);
return ES_ERROR;
}
return ES_NORMAL;
}
if (ep.getformat() == VF_ARRAY)
{
MCeerror->add(EE_ADD_MISMATCH, line, pos);
return ES_ERROR;
}
// Variable case
real8 n1 = ep.getnvalue();
if (t_dst_ref != NULL)
{
real8 n2;
if (!t_dst_ref -> get_as_real(ep, n2))
{
MCeerror -> add(EE_ADD_BADDEST, line, pos);
return ES_ERROR;
}
t_dst_ref -> assign_real(n1 + n2);
if (t_dst_var != NULL)
t_dst_var -> synchronize(ep, True);
return ES_NORMAL;
}
// Chunk case
if (dest->eval(ep) != ES_NORMAL || ep.ton() != ES_NORMAL)
{
MCeerror->add(EE_ADD_BADDEST, line, pos);
return ES_ERROR;
}
real8 n2 = ep.getnvalue();
ep.setnvalue(n1 + n2);
if (dest->set(ep, PT_INTO) != ES_NORMAL)
{
MCeerror->add(EE_ADD_CANTSET, line, pos);
return ES_ERROR;
}
overlap = MCMathOpCommandComputeOverlap(source, dest, destvar);
return ES_NORMAL;
#endif /* MCAdd */
MCExecValue t_src;
Boolean t_old_expectation;
// SN-2014-04-08 [[ NumberExpectation ]] Ensure we get a number when it's possible instead of a ValueRef
t_old_expectation = ctxt . GetNumberExpected();
ctxt . SetNumberExpected(True);
if (!ctxt . EvaluateExpression(source, EE_ADD_BADSOURCE, t_src)
|| !ctxt . ConvertToNumberOrArray(t_src))
{
ctxt . SetNumberExpected(t_old_expectation);
return;
}
MCExecValue t_dst;
MCAutoPointer<MCContainer> t_dst_container;
if (destvar != nil)
{
bool t_success;
if (destvar -> needsContainer())
t_success = destvar -> evalcontainer(ctxt, &t_dst_container)
&& t_dst_container -> eval_ctxt(ctxt, t_dst);
else
{
destvar -> eval_ctxt(ctxt, t_dst);
t_success = !ctxt . HasError();
}
if (!t_success)
{
ctxt . LegacyThrow(EE_ADD_BADDEST);
MCExecTypeRelease(t_src);
ctxt . SetNumberExpected(t_old_expectation);
return;
}
}
else
{
if (!ctxt . EvaluateExpression(dest, EE_ADD_BADDEST, t_dst))
{
MCExecTypeRelease(t_src);
ctxt . SetNumberExpected(t_old_expectation);
return;
}
}
// Set the number expectation back to its previous state
ctxt . SetNumberExpected(t_old_expectation);
if (!ctxt . ConvertToNumberOrArray(t_dst))
{
MCExecTypeRelease(t_src);
MCExecTypeRelease(t_dst);
return;
}
MCExecValue t_result;
t_result . type = t_dst . type;
if (t_src . type == kMCExecValueTypeArrayRef)
{
if (t_dst . type == kMCExecValueTypeArrayRef)
MCMathExecAddArrayToArray(ctxt, t_src . arrayref_value, t_dst . arrayref_value, t_result . arrayref_value);
else
{
ctxt . LegacyThrow(EE_ADD_MISMATCH);
return;
}
}
else
{
if (t_dst . type == kMCExecValueTypeArrayRef)
MCMathExecAddNumberToArray(ctxt, t_src . double_value, t_dst . arrayref_value, t_result . arrayref_value);
else
MCMathExecAddNumberToNumber(ctxt, t_src . double_value, t_dst . double_value, t_result . double_value);
}
MCExecTypeRelease(t_src);
MCExecTypeRelease(t_dst);
if (!ctxt . HasError())
{
if (destvar != nil)
{
bool t_success;
if (destvar -> needsContainer())
t_success = t_dst_container -> give_value(ctxt, t_result);
else
t_success = destvar -> give_value(ctxt, t_result);
if (!t_success)
ctxt . Throw();
}
else
{
if (dest->set(ctxt, PT_INTO, t_result))
return;
ctxt . LegacyThrow(EE_ADD_CANTSET);
}
}
}
void MCAdd::compile(MCSyntaxFactoryRef ctxt)
{
MCSyntaxFactoryBeginStatement(ctxt, line, pos);
source -> compile(ctxt);
if (destvar != nil)
destvar -> compile_inout(ctxt);
else
dest -> compile_inout(ctxt);
MCSyntaxFactoryExecMethodWithArgs(ctxt, kMCMathExecAddArrayToArrayMethodInfo, 0, 1, 1);
MCSyntaxFactoryExecMethodWithArgs(ctxt, kMCMathExecAddNumberToArrayMethodInfo, 0, 1, 1);
MCSyntaxFactoryExecMethodWithArgs(ctxt, kMCMathExecAddNumberToNumberMethodInfo, 0, 1, 1);
MCSyntaxFactoryEndStatement(ctxt);
}
MCDivide::~MCDivide()
{
delete source;
delete dest;
// MW-2013-08-01: [[ Bug 10925 ]] Only delete the destvar varref if dest is NULL,
// otherwise its owned by dest.
if (dest == NULL)
delete destvar;
}
Parse_stat MCDivide::parse(MCScriptPoint &sp)
{
initpoint(sp);
// MW-2011-06-22: [[ SERVER ]] Update to use SP findvar method to take into account
// execution outwith a handler.
Symbol_type type;
if (sp.next(type) != PS_NORMAL
|| type != ST_ID || sp . findvar(sp.gettoken_nameref(), &destvar) != PS_NORMAL)
{
sp.backup();
dest = new MCChunk(True);
if (dest->parse(sp, False) != PS_NORMAL)
{
MCperror->add(PE_DIVIDE_BADDEST, sp);
return PS_ERROR;
}
}
else
destvar->parsearray(sp);
if (sp.skip_token(SP_FACTOR, TT_PREP) == PS_ERROR)
{
MCperror->add(PE_DIVIDE_NOBY, sp);
return PS_ERROR;
}
if (sp.parseexp(False, True, &source) != PS_NORMAL)
{
MCperror->add(PE_DIVIDE_BADEXP, sp);
return PS_ERROR;
}
// MW-2013-08-01: [[ Bug 10925 ]] If the dest chunk is just a var, extract the varref.
if (dest != NULL && dest -> isvarchunk())
destvar = dest -> getrootvarref();
overlap = MCMathOpCommandComputeOverlap(source, dest, destvar);
return PS_NORMAL;
}
// MW-2007-07-03: [[ Bug 5123 ]] - Strict array checking modification
// Here the source can be an array or number so we use 'tona'.
void MCDivide::exec_ctxt(MCExecContext &ctxt)
{
#ifdef /* MCDivide */ LEGACY_EXEC
MCVariable *t_dst_var;
MCVariableValue *t_dst_ref;
t_dst_ref = NULL;
if (source->eval(ep) != ES_NORMAL || ep.tona() != ES_NORMAL)
{
MCeerror->add(EE_DIVIDE_BADSOURCE, line, pos);
return ES_ERROR;
}
if (overlap)
ep . grab();
if (destvar != NULL && destvar -> evalcontainer(ep, t_dst_var, t_dst_ref) != ES_NORMAL)
{
MCeerror->add(EE_DIVIDE_BADDEST, line, pos);
return ES_ERROR;
}
if (t_dst_ref != NULL && t_dst_ref -> is_array())
{
if (t_dst_ref->factorarray(ep, O_OVER) != ES_NORMAL)
{
MCeerror->add(EE_DIVIDE_BADARRAY, line, pos);
return ES_ERROR;
}
return ES_NORMAL;
}
if (ep.getformat() == VF_ARRAY)
{
MCeerror->add(EE_DIVIDE_MISMATCH, line, pos);
return ES_ERROR;
}
// Variable case
real8 n2 = ep.getnvalue();
if (t_dst_ref != NULL)
{
real8 n1;
if (!t_dst_ref -> get_as_real(ep, n1))
{
MCeerror -> add(EE_ADD_BADDEST, line, pos);
return ES_ERROR;
}
MCS_seterrno(0);
n1 /= n2;
if (n1 == MCinfinity || MCS_geterrno() != 0)
{
MCS_seterrno(0);
if (n2 == 0.0)
MCeerror->add(EE_DIVIDE_ZERO, line, pos);
else
MCeerror->add(EE_DIVIDE_RANGE, line, pos);
return ES_ERROR;
}
t_dst_ref -> assign_real(n1);
if (t_dst_var != NULL)
t_dst_var -> synchronize(ep, True);
return ES_NORMAL;
}
// Chunk case
if (dest->eval(ep) != ES_NORMAL || ep.ton() != ES_NORMAL)
{
MCeerror->add(EE_DIVIDE_BADDEST, line, pos);
return ES_ERROR;
}
real8 n1 = ep.getnvalue();
MCS_seterrno(0);
n1 = n1 / n2;
if (n1 == MCinfinity || MCS_geterrno() != 0)
{
MCS_seterrno(0);
if (n2 == 0.0)
MCeerror->add(EE_DIVIDE_ZERO, line, pos);
else
MCeerror->add(EE_DIVIDE_RANGE, line, pos);
return ES_ERROR;
}
ep.setnvalue(n1);
if (dest->set(ep, PT_INTO) != ES_NORMAL)
{
MCeerror->add(EE_DIVIDE_CANTSET, line, pos);
return ES_ERROR;
}
return ES_NORMAL;
#endif /* MCDivide */
MCExecValue t_src;
Boolean t_old_expectation;
// SN-2014-04-08 [[ NumberExpectation ]] Ensure we get a number when it's possible instead of a ValueRef
t_old_expectation = ctxt . GetNumberExpected();
ctxt . SetNumberExpected(True);
if (!ctxt . EvaluateExpression(source, EE_DIVIDE_BADSOURCE, t_src)
|| !ctxt . ConvertToNumberOrArray(t_src))
{
ctxt . SetNumberExpected(t_old_expectation);
return;
}
MCExecValue t_dst;
MCAutoPointer<MCContainer> t_dst_container;
if (destvar != nil)
{
bool t_success;
if (destvar -> needsContainer())
t_success = destvar -> evalcontainer(ctxt, &t_dst_container)
&& t_dst_container -> eval_ctxt(ctxt, t_dst);
else
{
destvar -> eval_ctxt(ctxt, t_dst);
t_success = !ctxt.HasError();
}
if (!t_success)
{
ctxt . LegacyThrow(EE_DIVIDE_BADDEST);
MCExecTypeRelease(t_src);
ctxt . SetNumberExpected(t_old_expectation);
return;
}
}
else
{
if (!ctxt . EvaluateExpression(dest, EE_DIVIDE_BADDEST, t_dst))
{
MCExecTypeRelease(t_src);
ctxt . SetNumberExpected(t_old_expectation);
return;
}
}
// Set the number expectation back to its previous state
ctxt . SetNumberExpected(t_old_expectation);
if (!ctxt . ConvertToNumberOrArray(t_dst))
{
MCExecTypeRelease(t_src);
MCExecTypeRelease(t_dst);
return;
}
MCExecValue t_result;
t_result . type = t_dst . type;
if (t_src . type == kMCExecValueTypeArrayRef)
{
if (t_dst . type == kMCExecValueTypeArrayRef)
MCMathExecDivideArrayByArray(ctxt, t_dst .arrayref_value, t_src . arrayref_value, t_result . arrayref_value);
else
{
ctxt . LegacyThrow(EE_DIVIDE_MISMATCH);
return;
}
}
else
{
if (t_dst . type == kMCExecValueTypeArrayRef)
MCMathExecDivideArrayByNumber(ctxt, t_dst . arrayref_value, t_src . double_value, t_result . arrayref_value);
else
MCMathExecDivideNumberByNumber(ctxt, t_dst . double_value, t_src . double_value, t_result . double_value);
}
MCExecTypeRelease(t_src);
MCExecTypeRelease(t_dst);
if (!ctxt . HasError())
{
if (destvar != nil)
{
bool t_success;
if (destvar -> needsContainer())
t_success = t_dst_container -> give_value(ctxt, t_result);
else
t_success = destvar -> give_value(ctxt, t_result);
if (!t_success)
ctxt . Throw();
}
else
{
if (dest->set(ctxt, PT_INTO, t_result))
return;
ctxt . LegacyThrow(EE_DIVIDE_CANTSET);
}
}
}
void MCDivide::compile(MCSyntaxFactoryRef ctxt)
{
MCSyntaxFactoryBeginStatement(ctxt, line, pos);
source -> compile(ctxt);
if (destvar != nil)
destvar -> compile_inout(ctxt);
else
dest -> compile_inout(ctxt);
MCSyntaxFactoryExecMethodWithArgs(ctxt, kMCMathExecDivideArrayByArrayMethodInfo, 0, 1, 1);
MCSyntaxFactoryExecMethodWithArgs(ctxt, kMCMathExecDivideArrayByNumberMethodInfo, 0, 1, 1);
MCSyntaxFactoryExecMethodWithArgs(ctxt, kMCMathExecDivideNumberByNumberMethodInfo, 0, 1, 1);
MCSyntaxFactoryEndStatement(ctxt);
}
MCMultiply::~MCMultiply()
{
delete source;
delete dest;
// MW-2013-08-01: [[ Bug 10925 ]] Only delete the destvar varref if dest is NULL,
// otherwise its owned by dest.
if (dest == NULL)
delete destvar;
}
Parse_stat MCMultiply::parse(MCScriptPoint &sp)
{
initpoint(sp);
// MW-2011-06-22: [[ SERVER ]] Update to use SP findvar method to take into account
// execution outwith a handler.
Symbol_type type;
if (sp.next(type) != PS_NORMAL
|| type != ST_ID || sp . findvar(sp.gettoken_nameref(), &destvar) != PS_NORMAL)
{
sp.backup();
dest = new MCChunk(True);
if (dest->parse(sp, False) != PS_NORMAL)
{
MCperror->add
(PE_MULTIPLY_BADDEST, sp);
return PS_ERROR;
}
}
else
destvar->parsearray(sp);
if (sp.skip_token(SP_FACTOR, TT_PREP) == PS_ERROR)
{
MCperror->add
(PE_MULTIPLY_NOBY, sp);
return PS_ERROR;
}
if (sp.parseexp(False, True, &source) != PS_NORMAL)
{
MCperror->add
(PE_MULTIPLY_BADEXP, sp);
return PS_ERROR;
}
// MW-2013-08-01: [[ Bug 10925 ]] If the dest chunk is just a var, extract the varref.
if (dest != NULL && dest -> isvarchunk())
destvar = dest -> getrootvarref();
overlap = MCMathOpCommandComputeOverlap(source, dest, destvar);
return PS_NORMAL;
}
// MW-2007-07-03: [[ Bug 5123 ]] - Strict array checking modification
// Here the source can be an array or number so we use 'tona'.
void MCMultiply::exec_ctxt(MCExecContext &ctxt)
{
#ifdef /* MCMultiply */ LEGACY_EXEC
MCVariable *t_dst_var;
MCVariableValue *t_dst_ref;
t_dst_ref = NULL;
if (source->eval(ep) != ES_NORMAL || ep.tona() != ES_NORMAL)
{
MCeerror->add(EE_MULTIPLY_BADSOURCE, line, pos);
return ES_ERROR;
}
if (overlap)
ep . grab();
if (destvar != NULL && destvar -> evalcontainer(ep, t_dst_var, t_dst_ref) != ES_NORMAL)
{
MCeerror->add(EE_MULTIPLY_BADDEST, line, pos);
return ES_ERROR;
}
if (t_dst_ref != NULL && t_dst_ref -> is_array())
{
if (t_dst_ref->factorarray(ep, O_TIMES) != ES_NORMAL)
{
MCeerror->add(EE_MULTIPLY_BADARRAY, line, pos);
return ES_ERROR;
}
return ES_NORMAL;
}
if (ep.getformat() == VF_ARRAY)
{
MCeerror->add(EE_MULTIPLY_MISMATCH, line, pos);
return ES_ERROR;
}
// Variable case
real8 n2 = ep.getnvalue();
if (t_dst_ref != NULL)
{
real8 n1;
if (!t_dst_ref -> get_as_real(ep, n1))
{
MCeerror -> add(EE_MULTIPLY_BADDEST, line, pos);
return ES_ERROR;
}
MCS_seterrno(0);
n1 *= n2;
if (n1 == MCinfinity || MCS_geterrno() != 0)
{
MCS_seterrno(0);
MCeerror->add(EE_MULTIPLY_RANGE, line, pos);
return ES_ERROR;
}
t_dst_ref -> assign_real(n1);
if (t_dst_var != NULL)
t_dst_var -> synchronize(ep, True);
return ES_NORMAL;
}
// Chunk case
if (dest->eval(ep) != ES_NORMAL || ep.ton() != ES_NORMAL)
{
MCeerror->add(EE_MULTIPLY_BADDEST, line, pos);
return ES_ERROR;
}
real8 n1 = ep.getnvalue();
MCS_seterrno(0);
n1 *= n2;
if (n1 == MCinfinity || MCS_geterrno() != 0)
{
MCS_seterrno(0);
MCeerror->add(EE_MULTIPLY_RANGE, line, pos);
return ES_ERROR;
}
ep.setnvalue(n1);
if (dest->set(ep, PT_INTO) != ES_NORMAL)
{
MCeerror->add(EE_MULTIPLY_CANTSET, line, pos);
return ES_ERROR;
}
return ES_NORMAL;
#endif /* MCMultiply */
MCExecValue t_src;
Boolean t_old_expectation;
// SN-2014-04-08 [[ NumberExpectation ]] Ensure we get a number when it's possible instead of a ValueRef
t_old_expectation = ctxt . GetNumberExpected();
ctxt . SetNumberExpected(True);
if(!ctxt . EvaluateExpression(source, EE_MULTIPLY_BADSOURCE, t_src)
|| !ctxt . ConvertToNumberOrArray(t_src))
{
ctxt . SetNumberExpected(t_old_expectation);
return;
}
MCExecValue t_dst;
MCAutoPointer<MCContainer> t_dst_container;
if (destvar != nil)
{
bool t_success;
if (destvar -> needsContainer())
t_success = destvar -> evalcontainer(ctxt, &t_dst_container)
&& t_dst_container -> eval_ctxt(ctxt, t_dst);
else
{
destvar -> eval_ctxt(ctxt, t_dst);
t_success = !ctxt . HasError();
}
if (!t_success)
{
ctxt . LegacyThrow(EE_MULTIPLY_BADDEST);
MCExecTypeRelease(t_src);
ctxt . SetNumberExpected(t_old_expectation);
return;
}
}
else
{
if (!ctxt . EvaluateExpression(dest, EE_MULTIPLY_BADDEST, t_dst))
{
MCExecTypeRelease(t_src);
ctxt . SetNumberExpected(t_old_expectation);
return;
}
}
// Set the number expectation back to the previous state
ctxt . SetNumberExpected(t_old_expectation);
if (!ctxt . ConvertToNumberOrArray(t_dst))
{
MCExecTypeRelease(t_src);
MCExecTypeRelease(t_dst);
return;
}
MCExecValue t_result;
t_result . type = t_dst . type;
if (t_src . type == kMCExecValueTypeArrayRef)
{
if (t_dst . type == kMCExecValueTypeArrayRef)
MCMathExecMultiplyArrayByArray(ctxt, t_dst . arrayref_value, t_src . arrayref_value, t_result . arrayref_value);
else
{
ctxt . LegacyThrow(EE_MULTIPLY_MISMATCH);
return;
}
}
else
{
if (t_dst . type == kMCExecValueTypeArrayRef)
MCMathExecMultiplyArrayByNumber(ctxt, t_dst . arrayref_value, t_src . double_value, t_result . arrayref_value);
else
MCMathExecMultiplyNumberByNumber(ctxt, t_dst . double_value, t_src . double_value, t_result . double_value);
}
MCExecTypeRelease(t_src);
MCExecTypeRelease(t_dst);
if (!ctxt . HasError())
{
if (destvar != nil)
{
bool t_success;
if (destvar -> needsContainer())
t_success = t_dst_container -> give_value(ctxt, t_result);
else
t_success = destvar -> give_value(ctxt, t_result);
if (!t_success)
ctxt . Throw();
}
else
{
if (dest->set(ctxt, PT_INTO, t_result))
return;
ctxt . LegacyThrow(EE_MULTIPLY_CANTSET);
}
}
}
void MCMultiply::compile(MCSyntaxFactoryRef ctxt)
{
MCSyntaxFactoryBeginStatement(ctxt, line, pos);
source -> compile(ctxt);
if (destvar != nil)
destvar -> compile_inout(ctxt);
else
dest -> compile_inout(ctxt);
MCSyntaxFactoryExecMethodWithArgs(ctxt, kMCMathExecMultiplyArrayByArrayMethodInfo, 0, 1, 1);
MCSyntaxFactoryExecMethodWithArgs(ctxt, kMCMathExecMultiplyArrayByNumberMethodInfo, 0, 1, 1);
MCSyntaxFactoryExecMethodWithArgs(ctxt, kMCMathExecMultiplyNumberByNumberMethodInfo, 0, 1, 1);
MCSyntaxFactoryEndStatement(ctxt);
}
MCSubtract::~MCSubtract()
{
delete source;
delete dest;
// MW-2013-08-01: [[ Bug 10925 ]] Only delete the destvar varref if dest is NULL,
// otherwise its owned by dest.
if (dest == NULL)
delete destvar;
}
Parse_stat MCSubtract::parse(MCScriptPoint &sp)
{
initpoint(sp);
if (sp.parseexp(False, True, &source) != PS_NORMAL)
{
MCperror->add
(PE_SUBTRACT_BADEXP, sp);
return PS_ERROR;
}
if (sp.skip_token(SP_FACTOR, TT_FROM) == PS_ERROR)
{
MCperror->add
(PE_SUBTRACT_NOFROM, sp);
return PS_ERROR;
}
// MW-2011-06-22: [[ SERVER ]] Update to use SP findvar method to take into account
// execution outwith a handler.
Symbol_type type;
if (sp.next(type) != PS_NORMAL
|| type != ST_ID || sp . findvar(sp.gettoken_nameref(), &destvar) != PS_NORMAL)
{
sp.backup();
dest = new MCChunk(True);
if (dest->parse(sp, False) != PS_NORMAL)
{
MCperror->add
(PE_SUBTRACT_BADDEST, sp);
return PS_ERROR;
}
}
else
destvar->parsearray(sp);
// MW-2013-08-01: [[ Bug 10925 ]] If the dest chunk is just a var, extract the varref.
if (dest != NULL && dest -> isvarchunk())
destvar = dest -> getrootvarref();
overlap = MCMathOpCommandComputeOverlap(source, dest, destvar);
return PS_NORMAL;
}
// MW-2007-07-03: [[ Bug 5123 ]] - Strict array checking modification
// Here the source can be an array or number so we use 'tona'.
void MCSubtract::exec_ctxt(MCExecContext &ctxt)
{
#ifdef /* MCSubtract */ LEGACY_EXEC
MCVariable *t_dst_var;
MCVariableValue *t_dst_ref;
t_dst_ref = NULL;
if (source->eval(ep) != ES_NORMAL || ep.tona() != ES_NORMAL)
{
MCeerror->add(EE_SUBTRACT_BADSOURCE, line, pos);
return ES_ERROR;
}
if (overlap)
ep . grab();
if (destvar != NULL && destvar -> evalcontainer(ep, t_dst_var, t_dst_ref) != ES_NORMAL)
{
MCeerror->add(EE_SUBTRACT_BADDEST, line, pos);
return ES_ERROR;
}
if (t_dst_ref != NULL && t_dst_ref -> is_array())
{
if (t_dst_ref->factorarray(ep, O_MINUS) != ES_NORMAL)
{
MCeerror->add(EE_SUBTRACT_BADARRAY, line, pos);
return ES_ERROR;
}
return ES_NORMAL;
}
if (ep.getformat() == VF_ARRAY)
{
MCeerror->add(EE_SUBTRACT_MISMATCH, line, pos);
return ES_ERROR;
}
// Variable case
real8 n1 = ep.getnvalue();
if (t_dst_ref != NULL)
{
real8 n2;
if (!t_dst_ref -> get_as_real(ep, n2))
{
MCeerror -> add(EE_SUBTRACT_BADDEST, line, pos);
return ES_ERROR;
}
t_dst_ref -> assign_real(n2 - n1);
if (t_dst_var != NULL)
t_dst_var -> synchronize(ep, True);
return ES_NORMAL;
}
// Chunk case
if (dest->eval(ep) != ES_NORMAL || ep.ton() != ES_NORMAL)
{
MCeerror->add(EE_SUBTRACT_BADDEST, line, pos);
return ES_ERROR;
}
real8 n2 = ep.getnvalue();
ep.setnvalue(n2 - n1);
if (dest->set(ep, PT_INTO) != ES_NORMAL)
{
MCeerror->add(EE_SUBTRACT_CANTSET, line, pos);
return ES_ERROR;
}
return ES_NORMAL;
#endif /* MCSubtract */
MCExecValue t_src;
Boolean t_old_expectation;
// SN-2014-04-08 [[ NumberExpectation ]] Ensure we get a number when it's possible instead of a ValueRef
t_old_expectation = ctxt . GetNumberExpected();
ctxt . SetNumberExpected(True);
if (!ctxt . EvaluateExpression(source, EE_SUBTRACT_BADSOURCE, t_src)
|| !ctxt . ConvertToNumberOrArray(t_src))
{
ctxt . SetNumberExpected(t_old_expectation);
return;
}
MCExecValue t_dst;
MCAutoPointer<MCContainer> t_dst_container;
if (destvar != nil)
{
bool t_success;
if (destvar -> needsContainer())
t_success = destvar -> evalcontainer(ctxt, &t_dst_container)
&& t_dst_container -> eval_ctxt(ctxt, t_dst);
else
{
destvar -> eval_ctxt(ctxt, t_dst);
t_success = !ctxt . HasError();
}
if (!t_success)
{
ctxt . LegacyThrow(EE_SUBTRACT_BADDEST);
MCExecTypeRelease(t_src);
ctxt . SetNumberExpected(t_old_expectation);