bool CtxCurrent( // GET CURRENT CONTEXT
CTX *a_context, // - addr[ current context ]
void const **a_data, // - addr[ ptr to data for context ]
char const **a_prefix ) // - addr[ prefix for header line in error ]
{
bool retn; // - TRUE ==> context changed from last time
void const *data; // - current data
*a_context = context;
*a_prefix = ctx_names[ context ];
switch( context ) {
case CTX_INIT :
case CTX_FINI :
case CTX_CMDLN_VALID :
case CTX_FORCED_INCS :
case CTX_SOURCE :
case CTX_CG_OPT :
case CTX_ENDFILE:
data = NULL;
break;
case CTX_CMDLN_ENV :
case CTX_CMDLN_PGM :
data = CtxGetSwitchAddr();
break;
case CTX_CG_FUNC :
case CTX_FUNC_GEN :
data = func;
break;
}
retn = ( context != last_context ) || ( data != last_data );
last_data = data;
*a_data = data;
last_context = context;
return retn;
}
static CTX_CL* cmdLnCtxAlloc( // ALLOCATE NEW CONTEXT
CTX_CLTYPE type ) // - type of context
{
CTX_CL* entry;
entry = VstkPush( &cmdLnContexts );
entry->base.ctx_type = type;
entry->base.sw_ptr = NULL;
if( type == CTX_CLTYPE_PGM ) {
entry->base.cmd_line = NULL;
entry->base.cmd_scan = NULL;
} else {
entry->base.cmd_line = CmdScanAddr();
entry->base.cmd_scan = CtxGetSwitchAddr();
}
return entry;
}
void *CtxWhereAreYou( // SET DEBUGGING BUFFER
void )
{
char *buf; // - points into buffer
buf = stpcpy( CompilerContext, ctx_names[ context ] );
switch( context ) {
case CTX_CMDLN_ENV :
case CTX_CMDLN_PGM :
buf = stpcpy( buf, ": " );
buf = stpcpy( buf, CtxGetSwitchAddr() );
break;
case CTX_FORCED_INCS :
case CTX_SOURCE :
if( location.src_file == NULL ) break;
buf = stpcpy( buf, ": " );
buf = stpcpy( buf, SrcFileName( location.src_file ) );
buf = stpcpy( buf, "(" );
buf = stdcpy( buf, location.line );
buf = stpcpy( buf, "," );
buf = stdcpy( buf, location.column );
buf = stpcpy( buf, ")" );
break;
case CTX_CG_FUNC :
case CTX_FUNC_GEN :
buf = stpcpy( buf, ": " );
if( func == NULL ) {
buf = stpcpy( buf, "data generation" );
} else {
VBUF vbuf;
buf = stpcpy( buf, DbgSymNameFull( func, &vbuf ) );
VbufFree( &vbuf );
}
if( ( context == CTX_FUNC_GEN )
&&( line != 0 ) ) {
buf = stpcpy( buf, "(" );
buf = stdcpy( buf, location.line );
buf = stpcpy( buf, ")" );
}
break;
}
return CompilerContext;
}
