Changeset 333 for cpp

Timestamp:

03/01/15 01:19:56 (10 years ago)

Author:

Maciej Komosinski

Message:

• use source/code mapping for line number and file information in vm error messages
• enum ExtValue::CompareResult? instead of int

Location:

cpp/frams

Files:

• param/multiparamload.cpp (modified) (4 diffs)
• param/multiparamload.h (modified) (1 diff)
• param/param.cpp (modified) (11 diffs)
• param/param.h (modified) (2 diffs)
• param/paramobj.h (modified) (2 diffs)
• util/extvalue.cpp (modified) (10 diffs)
• util/extvalue.h (modified) (2 diffs)
• vm/classes/collectionobj.cpp (modified) (1 diff)
• vm/framscript.y (modified) (13 diffs)

cpp/frams/param/multiparamload.cpp

@@ -21 +21 @@
 aborting=false;
 emptyparam.setParamTab(empty_paramtab);
+linenum=0;
 }
 
@@ -99 +100 @@
                 Param tmp_param;
                 ParamInterface *pi=lastobject.getParamInterface(tmp_param);
-                pi->load(file,true,&aborting);
+                pi->load(file,true,&aborting,&linenum);
                 if ((status!=Finished) && maybeBreak(AfterObject))
                         break;
@@ -120 +121 @@
                         continue;
                 }
+        linenum++;
         if (buf[0]=='#')
                 {
@@ -245 +247 @@
 Param tmp_param;
 ParamInterface *pi=o.getParamInterface(tmp_param);
-pi->load(file,warn_unknown_fields,&aborting);
+pi->load(file,warn_unknown_fields,&aborting,&linenum);
 status=AfterObject;
 return 0;

cpp/frams/param/multiparamload.h

@@ -46 +46 @@
 Param emptyparam;
 bool aborting;
+int linenum;
 
 void init();

cpp/frams/param/param.cpp

@@ -37 +37 @@
 static const char *strchrlimit(const char *t, int ch, const char *limit)
 {
-        if (limit<t) return NULL;
-        return (const char*)memchr((const void*)t,ch,limit-t);
+        if (limit < t) return NULL;
+        return (const char*)memchr((const void*)t, ch, limit - t);
 }
 
@@ -392 +392 @@
 }
 
-int ParamInterface::load(VirtFILE* f, bool warn_unknown_fields, bool *abortable)
+int ParamInterface::load(VirtFILE* f, bool warn_unknown_fields, bool *abortable, int *linenum)
 {
         SString buf;
@@ -402 +402 @@
         while (((!abortable) || (!*abortable)) && loadSStringLine(f, buf))
         {
+                if (linenum) (*linenum)++;
                 const char* t = (const char*)buf;
                 p0 = t; while ((*p0 == ' ') || (*p0 == '\t')) p0++;
@@ -417 +418 @@
                                         SString s;
                                         czytdotyldy(f, s);
+                                        int lfcount = 1;
+                                        const char* tmp = s;
+                                        while (tmp)
+                                                if ((tmp = strchr(tmp, '\n')))
+                                                {
+                                                lfcount++; tmp++;
+                                                }
                                         removeCR(s);
                                         int ch; while ((ch = fgetc(f)) != EOF) if (ch == '\n') break;
                                         unquoteTilde(s);
+                                        if (linenum && (flags(i)&PARAM_LINECOMMENT))
+                                                s = SString::sprintf("@line %d\n", *linenum + 1) + s;
                                         set(i, (const char*)s);
+                                        if (linenum)
+                                                (*linenum) += lfcount;
                                 }
                                 else
@@ -440 +452 @@
                         SString s;
                         czytdotyldy(f, s);
+                        if (linenum)
+                        {
+                                const char* tmp = s;
+                                int lfcount = 1;
+                                while (tmp)
+                                        if ((tmp = strchr(tmp, '\n')))
+                                        {
+                                        lfcount++; tmp++;
+                                        }
+                                (*linenum) += lfcount;
+                        }
                         int ch; while ((ch = fgetc(f)) != EOF) if (ch == '\n') break;
                 }
@@ -453 +476 @@
 switch (*(t=type(i)))
 {
-        case 'd':
-        {
-                for (i=atol(get(i));i>=0;i--) if (t) t=strchr(t+1,'~');
-                if (t)
-                {
-                        t++;
-                        char *t2=strchr(t,'~');
-                        if (!t2) t2=t+strlen(t);
-                        SString str;
-                        strncpy(str.directWrite(t2-t),t,t2-t);
-                        str.endWrite(t2-t);
-                        return str;
-                }
-        }
+case 'd':
+{
+for (i=atol(get(i));i>=0;i--) if (t) t=strchr(t+1,'~');
+if (t)
+{
+t++;
+char *t2=strchr(t,'~');
+if (!t2) t2=t+strlen(t);
+SString str;
+strncpy(str.directWrite(t2-t),t,t2-t);
+str.endWrite(t2-t);
+return str;
+}
+}
 }
 return get(i);
@@ -502 +525 @@
 {
         paInt value;
-        if (!ExtValue::parseInt(str,value,false,true))
+        if (!ExtValue::parseInt(str, value, false, true))
         {
                 paInt mn, mx, def;
@@ -517 +540 @@
 {
         double value;
-        if (!ExtValue::parseDouble(str,value,true))
+        if (!ExtValue::parseDouble(str, value, true))
         {
                 double mn, mx, def;
@@ -538 +561 @@
                 {
                         if (v.type == TObj)
+                        {
                                 FMprintf("ParamInterface", "set", FMLV_WARN, "Getting integer value from object reference (%s)", (const char*)v.getString());
-                        return setInt(i, (const char*)v.getString());
+                                return 0;
+                        }
+                        else
+                                return setInt(i, (const char*)v.getString());
                 }
         case 'f':
@@ -546 +573 @@
                 {
                         if (v.type == TObj)
+                        {
                                 FMprintf("ParamInterface", "set", FMLV_WARN, "Getting floating point value from object reference (%s)", (const char*)v.getString());
-                        return setDouble(i, (const char*)v.getString());
+                                return 0;
+                        }
+                        else
+                                return setDouble(i, (const char*)v.getString());
                 }
         case 's': { SString t = v.getString(); return setString(i, t); }
@@ -995 +1026 @@
 
                 field_end = strchrlimit(t, ',', end); if (!field_end) field_end = end;
-                next_field=field_end;
+                next_field = field_end;
                 while ((field_end>t) && isblank(field_end[-1])) field_end--;
                 quote = strchrlimit(t, '\"', field_end);

cpp/frams/param/param.h

@@ -32 +32 @@
 #define PARAM_NOISOLATION 4096  //< don't use proxy object in master/slave interactions
 #define PARAM_DEPRECATED  8192  //< this member is deprecated
+#define PARAM_LINECOMMENT 16384 //< Param::load() adds "@line ..." comment when loading multiline (internal use)
 
 typedef int32_t paInt;
@@ -160 +161 @@
         int save(VirtFILE*, const char* altname = NULL, bool force = 0);
         int saveprop(VirtFILE*, int i, const char* p, bool force = 0);
-        int load(VirtFILE*,bool warn_unknown_fields=true,bool *abortable=NULL);///< @return the number of fields loaded
+        int load(VirtFILE*, bool warn_unknown_fields = true, bool *abortable = NULL, int *linenum = NULL);///< @return the number of fields loaded
         int load2(const SString &, int &);///< @return the number of fields loaded
 

cpp/frams/param/paramobj.h

@@ -15 +15 @@
         int numfields;
         Param par;
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable: 4200) //Cannot generate copy-ctor or copy-assignment operator when UDT contains a zero-sized array
+#endif
         ExtValue fields[0];
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
         ParamObject() { numfields = 0; }
         ~ParamObject();
@@ -21 +28 @@
         void* operator new(size_t s, int numfields){ return ::operator new(s + sizeof(ExtValue)*numfields); }
         void* operator new(size_t s){ return ::operator new(s); }
+        void operator delete(void* ptr, int numfields) { ::operator delete(ptr); }
+        void operator delete(void* ptr) { ::operator delete(ptr); }
         ParamObject *clone();
         static void p_new(void* obj, ExtValue *args, ExtValue *ret);

cpp/frams/util/extvalue.cpp

@@ -13 +13 @@
 #include <common/Convert.h>
 #include <climits>
+#include <errno.h>
 
 #ifndef NO_BARRIER
@@ -290 +291 @@
 }
 
-static int longsign(paInt x)
-{
-if (x<0) return -1;
-if (x>0) return 1;
-return 0;
-}
-
-static int compareNull(const ExtValue& v)
-{
-switch(v.type)
-        {
-        case TDouble: return v.getDouble()!=0.0;
-        case TInt: return v.getInt()?1:0;
-        case TString: return 1;
-        default: return !v.isNull();
-        }
-}
-
-int ExtValue::compare(const ExtValue& src) const
+static ExtValue::CompareResult longsign(paInt x)
+{
+if (x<0) return ExtValue::ResultLower;
+if (x>0) return ExtValue::ResultHigher;
+return ExtValue::ResultEqual;
+}
+
+static ExtValue::CompareResult compareNull(const ExtValue& v)
+{
+if (v.isNull()) return ExtValue::ResultEqualUnordered;
+if ((v.getType()==TInt)&&(v.getInt()==0)) return ExtValue::ResultUnequal_RelaxedEqual;
+return ExtValue::ResultUnequal_RelaxedUnequal; //comparing anything else with null is valid but null is neither higher nor lower than numbers or strings
+}
+
+static ExtValue::CompareResult compareFloat(double a,double b)
+{
+double t=a-b;
+if (t<0) return ExtValue::ResultLower;
+else if (t>0) return ExtValue::ResultHigher;
+return ExtValue::ResultEqual;
+}
+
+static ExtValue::CompareResult compareString(const SString &a,const SString &b)
+{
+const char* s1=(const char*)a;
+const char* s2=(const char*)b;
+return longsign(strcmp(s1,s2));
+}
+
+ExtValue::CompareResult ExtValue::compare(const ExtValue& src) const
 {
 if (isNull())
@@ -316 +328 @@
 switch(type)
         {
+
         case TInt:
-        {
-        paInt t=src.getInt();
-        if (idata()>0)
-                {if (t>0) return longsign(idata()-t); else return +1;}
-        else
-                {if (t<=0) return longsign(idata()-t); else return -1;}
-        }
+
+                if (src.getType()==TInt)
+                        {
+                        paInt t=src.getInt();
+                        if (idata()>0)
+                                {if (t>0) return longsign(idata()-t); else return ResultHigher;}
+                        else
+                                {if (t<=0) return longsign(idata()-t); else return ResultLower;}
+                        }
+                else if (src.getType()==TDouble)
+                        return compareFloat((double)idata(),src.getDouble());
+                else
+                        return ResultMismatch;//comparing numbers with other things is invalid
+                break;
+
         case TDouble:
-                {
-                double t=ddata()-src.getDouble();
-                if (t<0) return -1;
-                else if (t>0) return 1;
-                return 0;
-                }
+                if ((src.getType()==TDouble)||(src.getType()==TInt))
+                        return compareFloat(getDouble(),src.getDouble());
+                else
+                        return ResultMismatch;
+                break;
+
         case TString:
-        {
-        SString t=src.getString();
-        SString& t2=sdata();
-        const char* s1=(const char*)t2;
-        const char* s2=(const char*)t;
-        return longsign(strcmp(s1,s2));
-        }
+                if (src.getType()==TString)
+                        return compareString(sdata(),src.getString());
+                else
+                        return ResultMismatch;
+                break;
+
         case TObj: 
         {
         if (src.type==TObj)
-                return !(odata()==src.odata());
-        return 1;
+                return odata()==src.odata() ? ResultEqualUnordered : ResultUnequal_RelaxedUnequal;
+        if ((src.type==TInt)&&(src.getInt()==0))
+                return ResultMismatch_RelaxedUnequal;
+        return ResultMismatch;
         }
         default:;
         }
-return 1;
+return ResultMismatch;
+}
+
+ExtValue::CmpMessageHandler ExtValue::default_cmp_message;
+ExtValue::CmpContext ExtValue::default_cmp_context={NULL,NULL,&default_cmp_message};
+
+const char* ExtValue::cmp_op_names[]={"==","!=",">=","<=",">","<","~=","!~",NULL};
+
+void ExtValue::CmpMessageHandler::cmpMessage(SString& text)
+{
+FMprintf("ExtValue","interpretCompare",FMLV_ERROR,"%s",(const char*)text);
+}
+
+int ExtValue::interpretCompare(CmpOperator op,CompareResult result,CmpContext *context)
+{
+int err=ResultUnequal_RelaxedEqual;//error when ResultUnequal_RelaxedEqual or higher (not comparable)
+int ret=0;
+switch (op)
+        {
+        case CmpEQ: ret=(result==ResultEqual)||(result==ResultEqualUnordered); err=ResultMismatch_RelaxedUnequal; break;
+        case CmpNE: ret=!((result==ResultEqual)||(result==ResultEqualUnordered)); err=ResultMismatch_RelaxedUnequal; break;
+        case CmpGT: ret=(result==ResultHigher); err=ResultEqualUnordered; break;
+        case CmpGE: ret=(result==ResultEqual)||(result==ResultHigher); err=ResultEqualUnordered; break;
+        case CmpLT: ret=(result==ResultLower); err=ResultEqualUnordered; break;
+        case CmpLE: ret=(result==ResultEqual)||(result==ResultLower); err=ResultEqualUnordered; break;
+        case CmpREQ: ret=(result==ResultEqual)||(result==ResultEqualUnordered)||(result==ResultUnequal_RelaxedEqual); err=ResultMismatch; break;
+        case CmpRNE: ret=!((result==ResultEqual)||(result==ResultEqualUnordered)||(result==ResultUnequal_RelaxedEqual)); err=ResultMismatch; break;
+        default:;
+        }
+if (result>=err)
+        {
+        if (context)
+                {
+                SString msg="Type mismatch";
+                if (context->v1 && context->v2)
+                        {
+                        const char* opname=cmp_op_names[op-CmpFIRST];
+                        msg+=": ";
+                        if (context->v1->isNull())
+                                msg+="null ";
+                        else
+                                msg+=SString::sprintf("%s '%s' ",(const char*)context->v1->typeDescription(),(const char*)context->v1->getString());
+                        msg+=opname;
+                        if (context->v2->isNull())
+                                msg+=" null";
+                        else
+                                msg+=SString::sprintf(" %s '%s'",(const char*)context->v2->typeDescription(),(const char*)context->v2->getString());
+                        }
+                context->handler->cmpMessage(msg);
+                }
+        ret=-1;
+        }
+return ret;
 }
 
@@ -814 +888 @@
                 return ret+1;
         else
+                {
+                FMprintf("ExtValue","deserialize",FMLV_ERROR,"Missing '\"' in string: '%s'",ret);
                 return NULL;
+                }
         }
 else if (*in=='[')
@@ -832 +909 @@
                         p=ret;
                         if (*p==',') p++;
+                        else if (*p!=']')
+                                {
+                                FMprintf("ExtValue","deserialize",FMLV_ERROR,"Missing ',' in Vector: '%s'",p);
+                                return NULL;
+                                }
                         }
                 else
@@ -855 +937 @@
                 if ((!ret)||(args[1].getType()!=TString)) {p=NULL;break;}
                 p=ret;
-                if (*p!=':') {p=NULL;break;}
+                if (*p!=':') {FMprintf("ExtValue","deserialize",FMLV_ERROR,"Missing ':' in Dictionary: '%s'",p);p=NULL;break;}
                 p++;
                 ret=args[0].deserialize(p);
@@ -862 +944 @@
                 dic->p_set(args,&dummy_ret);
                 if (*p==',') p++;
+                else if (*p!='}')
+                        {
+                        FMprintf("ExtValue","deserialize",FMLV_ERROR,"Missing ',' in Dictionary: '%s'",p);
+                        return NULL;
+                        }
                 }
         setObject(o);
@@ -899 +986 @@
                         }
                 }
+        FMprintf("ExtValue","deserialize",FMLV_ERROR,"Invalid reference: '%s'",in-1);
         return NULL;
         }
@@ -948 +1036 @@
         return ret;
         }
+FMprintf("ExtValue","deserialize",FMLV_ERROR,"Bad syntax: '%s'",in);
 setEmpty();
 return NULL;
@@ -968 +1057 @@
 ExtValue ExtValue::getExtType()
 {
-if (getType()!=TObj) return ExtValue((paInt)getType());
+static const char* typenames[]={"null","int","float","string","","invalid"};
+if (getType()!=TObj)
+        return ExtValue(typenames[(int)getType()]);
 ExtObject& o=odata();
 return ExtValue(SString(o.isEmpty()?"":o.interfaceName()));

cpp/frams/util/extvalue.h

@@ -136 +136 @@
         static ExtValue invalid() { ExtValue v; v.setInvalid(); return v; }
         static const ExtValue& empty() { static const ExtValue v; return v; }
-        int compare(const ExtValue& src) const;
+        static const ExtValue& zero() { static const ExtValue v(0); return v; }
+
+        enum CompareResult
+        {
+         ResultLower=-1, ResultEqual=0, ResultHigher=1,
+         ResultEqualUnordered,
+         ResultUnequal_RelaxedEqual,
+         ResultUnequal_RelaxedUnequal,
+         ResultMismatch_RelaxedUnequal,
+         ResultMismatch
+        };
+        // performs all script value comparisons.
+        // relaxed comparison (internal use only, not available in scripts) works like regular == with additional null~=0, notnull!~0
+        // and is used for pseudo-boolean conversion allowing for expressions like "if (null) ..."
+        CompareResult compare(const ExtValue& src) const;
+
+        enum CmpOperator { CmpFIRST,CmpEQ=CmpFIRST,CmpNE,CmpGE,CmpLE,CmpGT,CmpLT,/*relaxed (not)equal*/CmpREQ,CmpRNE };
+        static const char* cmp_op_names[];
+        class CmpMessageHandler { public: virtual void cmpMessage(SString& text); };
+        struct CmpContext { const ExtValue *v1,*v2; CmpMessageHandler *handler; };
+        static CmpMessageHandler default_cmp_message;
+        static CmpContext default_cmp_context;
+        // interpret compare() result, optional context controls error messages
+        // @return 0=false, 1=true, -1=undefined (null in script)
+        static int interpretCompare(CmpOperator op,CompareResult result,CmpContext *context=&default_cmp_context);
+
         int operator==(const ExtValue& src) const;
         void operator+=(const ExtValue& src);
@@ -154 +179 @@
         void setInvalid() { setEmpty(); type = TInvalid; }
         bool makeUnique() { return (type == TObj) && odata().makeUnique(); } //< @return false if nothing has changed
-        ExtPType getType() { return type; }
+        ExtPType getType() const { return type; }
         void *getObjectTarget(const char* classname, bool warn = true) const;
         void setInt(paInt v) { if (type != TInt) setri(v); else idata() = v; }

cpp/frams/vm/classes/collectionobj.cpp

@@ -203 +203 @@
 {
 public:
-bool operator()(const ExtValue *a,const ExtValue *b) {return a->compare(*b)<0;}
+bool operator()(const ExtValue *a,const ExtValue *b) {return a->compare(*b)==ExtValue::ResultLower;}
 };
 

cpp/frams/vm/framscript.y

@@ -28 +28 @@
 void warnTruthValue(const TokenValue& t);
 void outFunName(const TokenValue& t);
+static bool resultIsRelaxedEqual(ExtValue::CompareResult res);
 
 static const char* assign_op_names[]={"add","sub","mul","div","mod"};
@@ -46 +47 @@
 %left NEG     /* negation--unary minus */
 %left TYPEOF
-%left INT
-%left FLOAT
-%left STRING
+%left INT_TYPE
+%left FLOAT_TYPE
+%left STRING_TYPE
 
 %token IDENT
@@ -67 +68 @@
 %token DEFAULT  "default"
 
-%token TYPEOF    "typeof"
-%token INT       "int"
-%token FLOAT     "float"
-%token STRING    "string"
+%token TYPEOF      "typeof"
+%token INT_TYPE    "int"
+%token FLOAT_TYPE  "float"
+%token STRING_TYPE "string"
 
 %token ASM     
@@ -704 +705 @@
                              {trctx.out->printf("type s0,s0\n");}
                      }
-       | INT '(' expr ')' { trctx.emitLine(); $$.ident=0;
+       | INT_TYPE '(' expr ')' { trctx.emitLine(); $$.ident=0;
                        if ($3.constant)
                              {$$.constant=1; $$=ExtValue($3.getInt());}
@@ -710 +711 @@
                              {trctx.out->printf("conv 1,s0\n");}
                      }
-       | FLOAT '(' expr ')' { trctx.emitLine(); $$.ident=0;
+       | FLOAT_TYPE '(' expr ')' { trctx.emitLine(); $$.ident=0;
                        if ($3.constant)
                              {$$.constant=1; $$=ExtValue($3.getDouble());}
@@ -716 +717 @@
                              {trctx.out->printf("conv 2,s0\n");}
                      }
-       | STRING '(' expr ')' { trctx.emitLine(); $$.ident=0;
+       | STRING_TYPE '(' expr ')' { trctx.emitLine(); $$.ident=0;
                        if ($3.constant)
                              {$$.constant=1; $$=ExtValue($3.getString());}
@@ -748 +749 @@
  if ($1.constant)
          {
-         int cond=$1.compare(ExtValue::zero());
-         if ((cond==0)||(cond==2))
+         ExtValue::CompareResult cond=$1.compare(ExtValue::zero());
+         if (resultIsRelaxedEqual(cond))
                  {
                  $1.counter=0;
@@ -776 +777 @@
          if (!($1.constant && $1.counter==0))
                  {
-                 int cond=$4.compare(ExtValue::zero());
-                 bool value=!((cond==0)||(cond==2));
+                 ExtValue::CompareResult  cond=$4.compare(ExtValue::zero());
+                 bool value=!resultIsRelaxedEqual(cond);
                  trstack.adjust(-1);
                  trctx.out->printf("push %d\n",value);
@@ -803 +804 @@
  if ($1.constant)
          {
-         int cond=$1.compare(ExtValue::zero());
-         if (!((cond==0)||(cond==2)))
+         ExtValue::CompareResult  cond=$1.compare(ExtValue::zero());
+         if (!resultIsRelaxedEqual(cond))
                  {
                  $1.counter=1;
@@ -831 +832 @@
          if (!($1.constant && $1.counter==1))
                  {
-                 int cond=$4.compare(ExtValue::zero());
-                 bool value=!((cond==0)||(cond==2));
+                 ExtValue::CompareResult cond=$4.compare(ExtValue::zero());
+                 bool value=!resultIsRelaxedEqual(cond);
                  trstack.adjust(-1);
                  trctx.out->printf("push %d\n",value);
@@ -854 +855 @@
                          trctx.emitLine(); $$.assign=$2.assign; $$.parens=0; $$.ident=0;
                          if ($2.constant)
-                                 {$$.constant=1; int res=$2.compare(ExtValue((paInt)0)); $$.setInt((res==0)||(res==2));}
+                                 {$$.constant=1; ExtValue::CompareResult res=$2.compare(ExtValue((paInt)0)); $$.setInt(resultIsRelaxedEqual(res));}
                          else
                                 {trctx.out->printf("setif ~=,s0,s0\n");}
@@ -1427 +1428 @@
         {
         result.constant=1;
-        int cmp=arg1.compare(arg2);
+        ExtValue::CompareResult cmp=arg1.compare(arg2);
         ExtValue::CmpContext context;
         context.v1=&arg1;
@@ -1458 +1459 @@
 }
 
+static bool resultIsRelaxedEqual(ExtValue::CompareResult res)
+{
+return (res==ExtValue::ResultEqual)||(res==ExtValue::ResultEqualUnordered)||(res==ExtValue::ResultUnequal_RelaxedEqual);
+}
+
 bool variableOk(TokenValue &tok, const TokenValue& var,int &loc)
 {