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c99058741a
netcdf-c/ncgen/genc.c
dmh c99058741a [NCF-265] 
Ncgen is unable to resolve
ambiguous references to an enum
constant when two different enums
have same econstant name.

Solved by allowing more specific
forms for econstant references.
1. /.../enumname.enumconstname
2. enumname.enumconstname
3. enumconstname

Case 1 is resolved by using the econstant
in the specific enum definition. If none is
found, an error is reported.

Case 2 is resolved by
1. finding an enclosing group with an
   enum definition with the specified name
   and containing the specified econstant.
   If there are more than one, then an error is reported
2. finding all enum definitions in the dataset that have
   the specified enum name and contain the specified
   econstant. If more than one is found, then an error is reported.
If the above two methods fail, then report an error.

Case 3 is similar to case 2, but all enums, irrespective
of name are used if they contains the specified enum constant.

The ref_tst_econst.cdl test in ncdump is causing ncdump
to fail. So there may be yet some problem.
2013-09-20 20:43:09 -06:00

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/*********************************************************************
* Copyright 1993, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
* $Header: /upc/share/CVS/netcdf-3/ncgen/genc.c,v 1.6 2010/05/17 23:26:44 dmh Exp $
*********************************************************************/
#include "includes.h"
#include "nc_iter.h"
#include <ctype.h> /* for isprint() */
#ifdef ENABLE_C
#undef TRACE
/* Forward */
static const char* groupncid(Symbol*);
static const char* typencid(Symbol*);
static const char* varncid(Symbol*);
static const char* dimncid(Symbol*);
#ifdef USE_NETCDF4
static void definectype(Symbol*);
static void genc_deftype(Symbol*);
static void genc_definespecialattributes(Symbol* vsym);
#endif
static void genc_defineattr(Symbol* asym);
static void genc_definevardata(Symbol*);
static void genc_write(Generator*,Symbol* sym, Bytebuffer* code,
int rank, size_t* start, size_t* count);
static void genc_writevar(Generator*,Symbol*,Bytebuffer*,int,size_t*,size_t*);
static void genc_writeattr(Generator*,Symbol*,Bytebuffer*,int,size_t*,size_t*);
/*
* Generate C code for creating netCDF from in-memory structure.
*/
void
gen_ncc(const char *filename)
{
int idim, ivar, iatt, maxdims;
int ndims, nvars, natts, ngatts;
char* cmode_string;
#ifdef USE_NETCDF4
int igrp,ityp, ngrps, ntyps;
#endif
ndims = listlength(dimdefs);
nvars = listlength(vardefs);
natts = listlength(attdefs);
ngatts = listlength(gattdefs);
#ifdef USE_NETCDF4
ngrps = listlength(grpdefs);
ntyps = listlength(typdefs);
#endif /*USE_NETCDF4*/
/* wrap in main program */
codeline("#include <stdio.h>");
codeline("#include <stdlib.h>");
codeline("#include <netcdf.h>");
codeline("");
codeflush();
if(specialconstants) {
/* If the input referenced e.g. nan, inf, etc;
then provide definitions for them */
codeline("");
codeline("#define nanf (0.0f/0.0f)");
codeline("#define nan (0.0/0.0)");
codeline("#define inff (1.0f/0.0f)");
codeline("#define inf (1.0/0.0)");
codeline("#define infinityf inff");
codeline("#define infinity inf");
codeline("");
codeflush();
}
codeline("");
codeflush();
#ifdef USE_NETCDF4
/* Construct C type definitions*/
if (ntyps > 0) {
for(ityp = 0; ityp < ntyps; ityp++) {
Symbol* tsym = (Symbol*)listget(typdefs,ityp);
definectype(tsym);
}
codeline("");
}
codeflush();
/* Construct the chunking constants*/
if(!usingclassic) {
for(ivar=0;ivar<nvars;ivar++) {
Bytebuffer* tmp = bbNew();
Symbol* var = (Symbol*)listget(vardefs,ivar);
Specialdata* special = &var->var.special;
if(special->flags & _CHUNKSIZES_FLAG) {
int i;
size_t* chunks = special->_ChunkSizes;
if(special->nchunks == 0 || chunks == NULL) continue;
bbClear(tmp);
for(i=0;i<special->nchunks;i++) {
bbprintf(tmp,"%s%ld",
(i == 0?"":", "),special->_ChunkSizes[i]);
}
bbprintf0(stmt,"static size_t %s_chunksizes[%d] = {",
cname(var),special->nchunks);
codedump(stmt);
codedump(tmp);
codeline("} ;");
}
bbFree(tmp);
}
codeline("");
}
#endif /*USE_NETCDF4*/
/* Now construct the main procedures*/
codeline("void");
codeline("check_err(const int stat, const int line, const char *file) {");
codelined(1,"if (stat != NC_NOERR) {");
codelined(2,"(void)fprintf(stderr,\"line %d of %s: %s\\n\", line, file, nc_strerror(stat));");
codelined(2,"fflush(stderr);");
codelined(2,"exit(1);");
codelined(1,"}");
codeline("}");
codeline("");
codeline("int");
bbprintf0(stmt,"%s() {/* create %s */\n", mainname, filename);
codedump(stmt);
/* create necessary declarations */
codeline("");
codelined(1,"int stat; /* return status */");
codelined(1,"int ncid; /* netCDF id */");
codeflush();
#ifdef USE_NETCDF4
/* Define variables to hold group ids*/
if(!usingclassic) {
codeline("");
codelined(1,"/* group ids */");
}
if(!usingclassic && ngrps > 0) {
for(igrp = 0; igrp < ngrps; igrp++) {
Symbol* gsym = (Symbol*)listget(grpdefs,igrp);
bbprintf0(stmt,"%sint %s;\n",indented(1),groupncid(gsym));
codedump(stmt);
}
}
/* define variables to hold type ids*/
if(!usingclassic && ntyps > 0) {
codeline("");
codelined(1,"/* type ids */");
for(ityp = 0; ityp < ntyps; ityp++) {
Symbol* tsym = (Symbol*)listget(typdefs,ityp);
bbprintf0(stmt,"%sint %s;\n",indented(1), typencid(tsym));
codedump(stmt);
}
}
codeflush();
#endif
if (ndims > 0) {
codeline("");
codelined(1,"/* dimension ids */");
for(idim = 0; idim < ndims; idim++) {
Symbol* dsym = (Symbol*)listget(dimdefs,idim);
bbprintf0(stmt,"%sint %s;\n", indented(1), dimncid(dsym));
codedump(stmt);
}
codeline("");
codelined(1,"/* dimension lengths */");
for(idim = 0; idim < ndims; idim++) {
Symbol* dsym = (Symbol*)listget(dimdefs,idim);
if(dsym->dim.isunlimited) {
bbprintf0(stmt,"%ssize_t %s_len = NC_UNLIMITED;\n",
indented(1),cname(dsym));
} else {
bbprintf0(stmt,"%ssize_t %s_len = %lu;\n",
indented(1),
cname(dsym),
(unsigned long) dsym->dim.declsize);
}
codedump(stmt);
}
}
codeflush();
maxdims = 0; /* most dimensions of any variable */
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
if(vsym->typ.dimset.ndims > maxdims)
maxdims = vsym->typ.dimset.ndims;
}
if (nvars > 0) {
codeline("");
codelined(1,"/* variable ids */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
bbprintf0(stmt," int %s;\n", varncid(vsym));
codedump(stmt);
}
codeline("");
codelined(1,"/* rank (number of dimensions) for each variable */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
bbprintf0(stmt,"# define RANK_%s %d\n", cname(vsym),
vsym->typ.dimset.ndims);
codedump(stmt);
}
if (maxdims > 0) { /* we have dimensioned variables */
codeline("");
codelined(1,"/* variable shapes */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
if (vsym->typ.dimset.ndims > 0) {
bbprintf0(stmt," int %s_dims[RANK_%s];\n",
cname(vsym), cname(vsym));
codedump(stmt);
}
}
}
}
codeflush();
/* create netCDF file, uses NC_CLOBBER mode */
codeline("");
codelined(1,"/* enter define mode */");
if (!cmode_modifier) {
cmode_string = "NC_CLOBBER";
} else if (cmode_modifier & NC_64BIT_OFFSET) {
cmode_string = "NC_CLOBBER|NC_64BIT_OFFSET";
#ifdef USE_NETCDF4
} else if (cmode_modifier & NC_CLASSIC_MODEL) {
cmode_string = "NC_CLOBBER|NC_NETCDF4|NC_CLASSIC_MODEL";
} else if (cmode_modifier & NC_NETCDF4) {
cmode_string = "NC_CLOBBER|NC_NETCDF4";
#endif
} else {
derror("unknown cmode modifier");
cmode_string = "NC_CLOBBER";
}
bbprintf0(stmt," stat = nc_create(\"%s\", %s, &ncid);\n",
filename,cmode_string);
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
codeflush();
#ifdef USE_NETCDF4
/* Define the group structure */
/* ncid created above is also root group*/
if(!usingclassic) {
bbprintf0(stmt," %s = ncid;\n",groupncid(rootgroup));
codedump(stmt);
/* walking grpdefs list will do a preorder walk of all defined groups*/
for(igrp=0;igrp<listlength(grpdefs);igrp++) {
Symbol* gsym = (Symbol*)listget(grpdefs,igrp);
if(gsym == rootgroup) continue; /* ignore root*/
if(gsym->container == NULL)
PANIC("null container");
bbprintf0(stmt,
" stat = nc_def_grp(%s, \"%s\", &%s);\n",
groupncid(gsym->container),
gsym->name, groupncid(gsym));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
codeflush();
}
#endif
#ifdef USE_NETCDF4
/* Construct code to define types*/
if(ntyps > 0) {
codeline("");
for(ityp = 0; ityp < ntyps; ityp++) {
Symbol* tsym = (Symbol*)listget(typdefs,ityp);
if(tsym->subclass == NC_PRIM
|| tsym->subclass == NC_ARRAY) continue; /* no need to do these*/
genc_deftype(tsym);
codeline("");
}
}
codeflush();
#endif
/* define dimensions from info in dims array */
if (ndims > 0) {
codeline("");
codelined(1,"/* define dimensions */");
for(idim = 0; idim < ndims; idim++) {
Symbol* dsym = (Symbol*)listget(dimdefs,idim);
{
bbprintf0(stmt,
" stat = nc_def_dim(%s, \"%s\", %s_len, &%s);\n",
groupncid(dsym->container),
escapifyname(dsym->name),
cname(dsym),
dimncid(dsym));
}
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
}
codeflush();
/* define variables from info in vars array */
if (nvars > 0) {
codeline("");
codelined(1,"/* define variables */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
Symbol* basetype = vsym->typ.basetype;
Dimset* dimset = &vsym->typ.dimset;
codeline("");
if(dimset->ndims > 0) {
for(idim = 0; idim < dimset->ndims; idim++) {
Symbol* dsym = dimset->dimsyms[idim];
bbprintf0(stmt,
" %s_dims[%d] = %s;\n",
cname(vsym),
idim,
dimncid(dsym));
codedump(stmt);
}
}
bbprintf0(stmt,
" stat = nc_def_var(%s, \"%s\", %s, RANK_%s, %s, &%s);\n",
groupncid(vsym->container),
escapifyname(vsym->name),
typencid(basetype),
cname(vsym),
(dimset->ndims == 0?"0":poolcat(cname(vsym),"_dims")),
varncid(vsym));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
#ifdef USE_NETCDF4
genc_definespecialattributes(vsym);
#endif /*USE_NETCDF4*/
}
}
codeflush();
/* Define the global attributes*/
if(ngatts > 0) {
codeline("");
codelined(1,"/* assign global attributes */");
for(iatt = 0; iatt < ngatts; iatt++) {
Symbol* gasym = (Symbol*)listget(gattdefs,iatt);
genc_defineattr(gasym);
}
codeline("");
}
codeflush();
/* Define the variable specific attributes*/
if(natts > 0) {
codeline("");
codelined(1,"/* assign per-variable attributes */");
for(iatt = 0; iatt < natts; iatt++) {
Symbol* asym = (Symbol*)listget(attdefs,iatt);
genc_defineattr(asym);
}
codeline("");
}
codeflush();
if (nofill_flag) {
codelined(1,"/* don't initialize variables with fill values */");
bbindent(stmt,1);
bbprintf0(stmt,"stat = nc_set_fill(%s, NC_NOFILL, 0);",groupncid(rootgroup));
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
codeline("");
codelined(1,"/* leave define mode */");
bbprintf0(stmt," stat = nc_enddef (%s);\n",groupncid(rootgroup));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
codeflush();
if(!header_only) {
/* Load values into those variables with defined data */
if(nvars > 0) {
codeline("");
codelined(1,"/* assign variable data */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
if(vsym->data != NULL) genc_definevardata(vsym);
}
codeline("");
}
codeflush();
}
}
#ifdef USE_NETCDF4
static void
genc_definespecialattributes(Symbol* vsym)
{
Specialdata* special = &vsym->var.special;
if(usingclassic) return;
if(special->flags & _STORAGE_FLAG) {
int storage = special->_Storage;
size_t* chunks = special->_ChunkSizes;
bbprintf0(stmt,
" stat = nc_def_var_chunking(%s, %s, %s, ",
groupncid(vsym->container),
varncid(vsym),
(storage == NC_CONTIGUOUS?"NC_CONTIGUOUS":"NC_CHUNKED"));
codedump(stmt);
if(special->nchunks == 0 || chunks == NULL)
codepartial("NULL");
else {
bbprintf0(stmt,"%s_chunksizes",cname(vsym));
codedump(stmt);
}
codeline(");");
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
if(special->flags & _FLETCHER32_FLAG) {
bbprintf0(stmt,
" stat = nc_def_var_fletcher32(%s, %s, %d);\n",
groupncid(vsym->container),
varncid(vsym),
special->_Fletcher32);
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
if(special->flags & (_DEFLATE_FLAG | _SHUFFLE_FLAG)) {
bbprintf0(stmt,
" stat = nc_def_var_deflate(%s, %s, %s, %d, %d);\n",
groupncid(vsym->container),
varncid(vsym),
(special->_Shuffle == 1?"NC_SHUFFLE":"NC_NOSHUFFLE"),
(special->_DeflateLevel >= 0?1:0),
(special->_DeflateLevel >= 0?special->_DeflateLevel:0));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
if(special->flags & _ENDIAN_FLAG) {
bbprintf0(stmt,
" stat = nc_def_var_endian(%s, %s, %s);\n",
groupncid(vsym->container),
varncid(vsym),
(special->_Endianness == NC_ENDIAN_LITTLE?"NC_ENDIAN_LITTLE"
:"NC_ENDIAN_BIG")
);
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
if(special->flags & _NOFILL_FLAG) {
bbprintf0(stmt,
" stat = nc_def_var_fill(%s, %s, %s, NULL);\n",
groupncid(vsym->container),
varncid(vsym),
(special->_Fill?"NC_FILL":"NC_NOFILL")
);
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
}
#endif /*USE_NETCDF4*/
void
cl_c(void)
{
bbprintf0(stmt,"%sstat = nc_close(%s);\n",indented(1),groupncid(rootgroup));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
#ifndef vms
codelined(1,"return 0;");
#else
codelined(1,"return 1;");
#endif
codeline("}");
codeflush();
}
/*
* Output a C statement
*/
/* return C name for netCDF type, given type code */
const char *
nctype(nc_type type)
{
switch (type) {
case NC_CHAR: return "NC_CHAR";
case NC_BYTE: return "NC_BYTE";
case NC_SHORT: return "NC_SHORT";
case NC_INT: return "NC_INT";
case NC_FLOAT: return "NC_FLOAT";
case NC_DOUBLE: return "NC_DOUBLE";
case NC_UBYTE: return "NC_UBYTE";
case NC_USHORT: return "NC_USHORT";
case NC_UINT: return "NC_UINT";
case NC_INT64: return "NC_INT64";
case NC_UINT64: return "NC_UINT64";
case NC_STRING: return "NC_STRING";
default: PANIC("nctype: bad type code");
}
return NULL;
}
/*
* Return C type name for netCDF type, given type code.
*/
const char*
ncctype(nc_type type)
{
switch (type) {
case NC_CHAR:
return "char";
case NC_BYTE:
return "signed char";
case NC_SHORT:
return "short";
case NC_INT:
return "int";
case NC_FLOAT:
return "float";
case NC_DOUBLE:
return "double";
case NC_UBYTE:
return "unsigned char";
case NC_USHORT:
return "unsigned short";
case NC_UINT:
return "unsigned int";
case NC_INT64:
return "signed long long";
case NC_UINT64:
return "unsigned long long";
case NC_STRING:
return "char*";
default:
PANIC1("ncctype: bad type code:%d",type);
}
return 0;
}
/*
* Return C type name for netCDF type suffix, given type code.
*/
const char*
ncstype(nc_type nctype)
{
switch (nctype) {
case NC_CHAR:
return "text";
case NC_BYTE:
return "schar";
case NC_SHORT:
return "short";
case NC_INT:
return "int";
case NC_FLOAT:
return "float";
case NC_DOUBLE:
return "double";
case NC_UBYTE:
return "ubyte";
case NC_USHORT:
return "ushort";
case NC_UINT:
return "uint";
case NC_INT64:
return "longlong";
case NC_UINT64:
return "ulonglong";
case NC_STRING:
return "string";
default:
derror("ncstype: bad type code: %d",nctype);
return 0;
}
}
/* Return the group name for the specified group*/
static const char*
groupncid(Symbol* sym)
{
#ifdef USE_NETCDF4
if(usingclassic) {
return "ncid";
} else {
char* grptmp;
const char* tmp1;
if(sym == NULL) return groupncid(rootgroup);
ASSERT(sym->objectclass == NC_GRP);
tmp1 = cname(sym);
grptmp = poolalloc(strlen(tmp1)+strlen("_grp")+1);
strcpy(grptmp,tmp1);
strcat(grptmp,"_grp");
return grptmp;
}
#else
return "ncid";
#endif
}
/* Compute the C name for a given type's id*/
/* Watch out: the result is a static*/
static const char*
typencid(Symbol* tsym)
{
char* typtmp;
const char* tmp1;
if(tsym->subclass == NC_PRIM)
return nctype(tsym->typ.typecode);
tmp1 = ctypename(tsym);
typtmp = poolalloc(strlen(tmp1)+strlen("_typ")+1);
strcpy(typtmp,tmp1);
strcat(typtmp,"_typ");
return typtmp;
}
/* Compute the C name for a given var's id*/
/* Watch out: the result is a static*/
static const char*
varncid(Symbol* vsym)
{
const char* tmp1;
char* vartmp;
tmp1 = cname(vsym);
vartmp = poolalloc(strlen(tmp1)+strlen("_id")+1);
strcpy(vartmp,tmp1);
strcat(vartmp,"_id");
return vartmp;
}
/* Compute the C name for a given dim's id*/
/* Watch out: the result is pooled*/
static const char*
dimncid(Symbol* dsym)
{
const char* tmp1;
char* dimtmp;
tmp1 = cname(dsym);
dimtmp = poolalloc(strlen(tmp1)+1);
strcpy(dimtmp,tmp1);
return dimtmp;
}
/* Compute the C name for a given type*/
const char*
ctypename(Symbol* tsym)
{
const char* name;
ASSERT(tsym->objectclass == NC_TYPE);
if(tsym->subclass == NC_PRIM)
name = ncctype(tsym->typ.typecode);
else
name = cname(tsym);
return name;
}
#ifdef USE_NETCDF4
static void
definectype(Symbol* tsym)
{
int i,j;
ASSERT(tsym->objectclass == NC_TYPE);
switch (tsym->subclass) {
case NC_PRIM: break; /* these are already taken care of*/
case NC_OPAQUE:
bbprintf0(stmt,"typedef unsigned char %s[%lu];\n",
cname(tsym), tsym->typ.size);
codedump(stmt);
break;
case NC_ENUM:
for(i=0;i<listlength(tsym->subnodes);i++) {
Symbol* econst = (Symbol*)listget(tsym->subnodes,i);
Bytebuffer* econststring = bbNew();
ASSERT(econst->subclass == NC_ECONST);
c_generator->constant(c_generator,&econst->typ.econst,econststring);
bbNull(econststring);
/* Enum constants must be converted to a fully qualified name */
bbprintf0(stmt,"#define %s ((%s)%s)\n",
cname(econst),
ctypename(econst->typ.basetype),
bbContents(econststring));
bbFree(econststring);
codedump(stmt);
}
bbprintf0(stmt,"typedef %s %s;\n",
ctypename(tsym->typ.basetype), cname(tsym));
codedump(stmt);
break;
case NC_VLEN:
bbprintf0(stmt,"typedef nc_vlen_t %s;\n",
ctypename(tsym));
codedump(stmt);
break;
case NC_COMPOUND:
bbprintf0(stmt,"typedef struct %s {\n",cname(tsym));
codedump(stmt);
for(i=0;i<listlength(tsym->subnodes);i++) {
Symbol* efield = (Symbol*)listget(tsym->subnodes,i);
ASSERT(efield->subclass == NC_FIELD);
bbprintf0(stmt,"%s%s %s",
indented(1),ctypename(efield->typ.basetype),cname(efield));
codedump(stmt);
/* compute any dimension specification*/
if(efield->typ.dimset.ndims > 0) {
Bytebuffer* dimbuf = bbNew();
for(j=0;j<efield->typ.dimset.ndims;j++) {
Symbol* dim;
char tmp[64];
bbCat(dimbuf,"[");
dim = efield->typ.dimset.dimsyms[j];
ASSERT(dim->dim.isconstant);
snprintf(tmp,sizeof(tmp),"%u",
(unsigned int)dim->dim.declsize);
bbCat(dimbuf,tmp);
bbCat(dimbuf,"]");
}
codedump(dimbuf);
bbFree(dimbuf);
}
codeline(";");
}
bbprintf0(stmt,"} %s;\n", ctypename(tsym));
codedump(stmt);
break;
case NC_ARRAY:
/* ignore: this will be handled by def_var*/
break;
default: panic("definectype: unexpected type subclass: %d",tsym->subclass);
}
}
/*
Generate the C code for defining a given type
*/
static void
genc_deftype(Symbol* tsym)
{
int i;
ASSERT(tsym->objectclass == NC_TYPE);
switch (tsym->subclass) {
case NC_PRIM: break; /* these are already taken care of*/
case NC_OPAQUE:
bbprintf0(stmt,"%sstat = nc_def_opaque(%s, %lu, \"%s\", &%s);\n",
indented(1),
groupncid(tsym->container),
tsym->typ.size,
tsym->name,
typencid(tsym));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
break;
case NC_ENUM:
codelined(1,"{");
bbprintf0(stmt,"%s%s econst;\n",
indented(1),
ncctype(tsym->typ.basetype->typ.typecode));
codedump(stmt);
bbprintf0(stmt,"%sstat = nc_def_enum(%s, %s, \"%s\", &%s);\n",
indented(1),
groupncid(tsym->container),
nctype(tsym->typ.basetype->typ.typecode),
tsym->name,
typencid(tsym));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
for(i=0;i<listlength(tsym->subnodes);i++) {
Symbol* econst = (Symbol*)listget(tsym->subnodes,i);
Bytebuffer* econststring = bbNew();
ASSERT(econst->subclass == NC_ECONST);
c_generator->constant(c_generator,&econst->typ.econst,econststring);
bbNull(econststring);
bbprintf0(stmt,"%seconst = %s;\n",
indented(1),bbContents(econststring));
bbFree(econststring);
codedump(stmt);
bbprintf0(stmt,"%sstat = nc_insert_enum(%s, %s, \"%s\", &econst);\n",
indented(1),
groupncid(tsym->container),
typencid(tsym),
escapifyname(econst->name));
codedump(stmt);
}
codelined(1,"}");
break;
case NC_VLEN:
bbprintf0(stmt,"%sstat = nc_def_vlen(%s, \"%s\", %s, &%s);",
indented(1),
groupncid(tsym->container),
escapifyname(tsym->name),
typencid(tsym->typ.basetype),
typencid(tsym));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
break;
case NC_COMPOUND:
bbprintf0(stmt,"%sstat = nc_def_compound(%s, sizeof(%s), \"%s\", &%s);",
indented(1),
groupncid(tsym->container),
ctypename(tsym),
escapifyname(tsym->name),
typencid(tsym));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
/* Generate the field dimension constants*/
codelined(1,"{");
for(i=0;i<listlength(tsym->subnodes);i++) {
int j;
Symbol* efield = (Symbol*)listget(tsym->subnodes,i);
ASSERT(efield->subclass == NC_FIELD);
if(efield->typ.dimset.ndims == 0) continue;
bbprintf0(stmt,"%sstatic int %s_dims[%d] = {\n",
indented(1),
cname(efield),efield->typ.dimset.ndims);
for(j=0;j<efield->typ.dimset.ndims;j++) {
char tmp[256];
Symbol* e = efield->typ.dimset.dimsyms[j];
ASSERT(e->dim.isconstant);
snprintf(tmp,sizeof(tmp),"%u",(unsigned int)e->dim.declsize);
bbCat(stmt,(j==0?"":", "));
bbCat(stmt,tmp);
}
bbCat(stmt,"};");
codedump(stmt);
}
for(i=0;i<listlength(tsym->subnodes);i++) {
Symbol* efield = (Symbol*)listget(tsym->subnodes,i);
char tmp[1024];
ASSERT(efield->subclass == NC_FIELD);
#ifdef TESTALIGNMENT
snprintf(tmp,sizeof(tmp),"%lu",efield->typ.offset);
#else
snprintf(tmp,sizeof(tmp),"NC_COMPOUND_OFFSET(%s,%s)",
ctypename(tsym), cname(efield));
#endif
if(efield->typ.dimset.ndims > 0){
bbprintf0(stmt,"%sstat = nc_insert_array_compound(%s, %s, \"%s\", %s, %s, %d, %s_dims);",
indented(1),
groupncid(tsym->container),
typencid(tsym),
escapifyname(efield->name),
tmp,
typencid(efield->typ.basetype),
efield->typ.dimset.ndims,
cname(efield));
} else {
bbprintf0(stmt,"%sstat = nc_insert_compound(%s, %s, \"%s\", %s, %s);",
indented(1),
groupncid(tsym->container),
typencid(tsym),
escapifyname(efield->name),
tmp,
typencid(efield->typ.basetype));
}
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
codelined(1,"}");
break;
case NC_ARRAY:
/* ignore: this will be handled by def_var*/
break;
default: panic("genc_deftype: unexpected type subclass: %d",tsym->subclass);
}
}
#endif /*USE_NETCDF4*/
static void
genc_defineattr(Symbol* asym)
{
/* we need to capture vlen strings for dumping */
Bytebuffer* save = bbNew(); /* capture so we can dump
vlens first */
List* oldstate = NULL;
generator_getstate(c_generator,(void*)&oldstate);
listfree(oldstate);
generator_reset(c_generator,(void*)listnew());
generate_attrdata(asym,c_generator,(Writer)genc_write,save);
bbFree(save);
}
static void
genc_definevardata(Symbol* vsym)
{
Bytebuffer* save; /* capture so we can dump vlens first */
List* oldstate = NULL;
if(vsym->data == NULL) return;
save = bbNew();
generator_getstate(c_generator,(void*)&oldstate);
listfree(oldstate);
generator_reset(c_generator,(void*)listnew());
generate_vardata(vsym,c_generator,(Writer)genc_write,save);
bbFree(save);
}
static void
genc_write(Generator* generator, Symbol* sym, Bytebuffer* code,
int rank, size_t* start, size_t* count)
{
if(sym->objectclass == NC_ATT)
genc_writeattr(generator,sym,code,rank,start,count);
else if(sym->objectclass == NC_VAR)
genc_writevar(generator,sym,code,rank,start,count);
else
PANIC("illegal symbol for genc_write");
}
static void
genc_writevar(Generator* generator, Symbol* vsym, Bytebuffer* code,
int rank, size_t* start, size_t* count)
{
Symbol* basetype = vsym->typ.basetype;
nc_type typecode = basetype->typ.typecode;
List* vlendecls;
/* define a block to avoid name clashes*/
codeline("");
codelined(1,"{");
/* Dump any vlen decls first */
generator_getstate(generator,(void**)&vlendecls);
if(vlendecls != NULL && listlength(vlendecls) > 0) {
int i;
for(i=0;i<listlength(vlendecls);i++) {
Bytebuffer* decl = (Bytebuffer*)listget(vlendecls,i);
codelined(1,bbContents(decl));
bbFree(decl);
}
listfree(vlendecls);
generator_reset(generator,NULL);
}
if(rank == 0) {
codelined(1,"size_t count = 0;");
/* We make the data be an array so we do not need to
ampersand it later => we need an outer pair of braces
*/
commify(code); /* insert commas at proper places */
bbprintf0(stmt,"%sstatic %s %s_data[1] = {%s};\n",
indented(1),
ctypename(basetype),
cname(vsym),
bbContents(code));
codedump(stmt);
bbprintf0(stmt,"%sstat = nc_put_var1(%s, %s, &count, %s_data);\n",
indented(1),
groupncid(vsym->container),
varncid(vsym),
cname(vsym));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
codeflush();
} else { /* rank > 0 */
int i;
size_t length = 0;
if(typecode == NC_CHAR) {
length = bbLength(code);
/* generate data constant */
bbprintf(stmt,"%schar* %s_data = ",
indented(1),
cname(vsym),
(unsigned long)length);
codedump(stmt);
cquotestring(code,'"');
codedump(code);
codeline(" ;");
} else {
/* Compute total size */
length = 1;
for(i=0;i<rank;i++) length *= count[i];
/* generate data constant */
commify(code); /* insert commas at proper places */
bbprintf(stmt,"%s%s %s_data[%lu] = ",
indented(1),
ctypename(basetype),
cname(vsym),
(unsigned long)length);
codedump(stmt);
/* C requires an outer set of braces on datalist constants */
codepartial("{");
codedump(code);
codeline("} ;");
}
/* generate constants for startset, countset*/
bbprintf0(stmt,"%ssize_t %s_startset[%lu] = {",
indented(1),
cname(vsym),
rank);
for(i=0;i<rank;i++) {
bbprintf(stmt,"%s%lu",(i>0?", ":""),start[i]);
}
codedump(stmt);
codeline("} ;");
bbprintf0(stmt,"%ssize_t %s_countset[%lu] = {",
indented(1),
cname(vsym),
rank);
for(i=0;i<rank;i++) {
bbprintf(stmt,"%s%lu",(i>0?", ":""),count[i]);
}
codedump(stmt);
codeline("};");
bbprintf0(stmt,"%sstat = nc_put_vara(%s, %s, %s_startset, %s_countset, %s_data);\n",
indented(1),
groupncid(vsym->container), varncid(vsym),
cname(vsym),
cname(vsym),
cname(vsym));
codedump(stmt);
codelined(1,"check_err(stat,__LINE__,__FILE__);");
}
/* end defined block*/
codelined(1,"}\n");
codeflush();
}
static void
genc_writeattr(Generator* generator, Symbol* asym, Bytebuffer* code,
int rank, size_t* start, size_t* count)
{
Symbol* basetype = asym->typ.basetype;
int typecode = basetype->typ.typecode;
size_t len = asym->data->length; /* default assumption */
/* define a block to avoid name clashes*/
codeline("");
codelined(1,"{");
/* Handle NC_CHAR specially */
if(typecode == NC_CHAR) {
len = bbLength(code); /* presumably before quoting */
/* Revise length if length == 0 */
if(len == 0) len++;
cquotestring(code,'"');
} else {
/* All other cases */
/* Dump any vlen decls first */
List* vlendecls;
generator_getstate(generator,(void**)&vlendecls);
if(vlendecls != NULL && listlength(vlendecls) > 0) {
int i;
for(i=0;i<listlength(vlendecls);i++) {
Bytebuffer* decl = (Bytebuffer*)listget(vlendecls,i);
codelined(1,bbContents(decl));
bbFree(decl);
}
listfree(vlendecls);
generator_reset(generator,NULL);
}
commify(code);
bbprintf0(stmt,"%sstatic const %s %s_att[%ld] = ",
indented(1),
ctypename(basetype),
cname(asym),
asym->data->length
);
codedump(stmt);
codepartial("{");
codedump(code);
codepartial("}");
codeline(" ;");
bbClear(code);
}
/* Use the specialized put_att_XX routines if possible*/
switch (basetype->typ.typecode) {
case NC_BYTE:
case NC_SHORT:
case NC_INT:
case NC_FLOAT:
case NC_DOUBLE:
bbprintf0(stmt,"%sstat = nc_put_att_%s(%s, %s, \"%s\", %s, %lu, %s_att);\n",
indented(1),
ncstype(basetype->typ.typecode),
groupncid(asym->container),
(asym->att.var == NULL?"NC_GLOBAL"
:varncid(asym->att.var)),
escapifyname(asym->name),
typencid(basetype),
len,
cname(asym));
codedump(stmt);
break;
case NC_CHAR:
/* Include the string constant in-line */
bbprintf0(stmt,"%sstat = nc_put_att_%s(%s, %s, \"%s\", %lu, %s);\n",
indented(1),
ncstype(basetype->typ.typecode),
groupncid(asym->container),
(asym->att.var == NULL?"NC_GLOBAL"
:varncid(asym->att.var)),
escapifyname(asym->name),
len,
bbContents(code));
codedump(stmt);
break;
#ifdef USE_NETCDF4
/* !usingclassic only (except NC_STRING) */
case NC_UBYTE:
case NC_USHORT:
case NC_UINT:
case NC_INT64:
case NC_UINT64:
if(usingclassic) {
verror("Non-classic type: %s",nctypename(basetype->typ.typecode));
return;
}
bbprintf0(stmt,"%sstat = nc_put_att_%s(%s, %s, \"%s\", %s, %lu, %s_att);",
indented(1),
ncstype(basetype->typ.typecode),
groupncid(asym->container),
(asym->att.var == NULL?"NC_GLOBAL"
:varncid(asym->att.var)),
escapifyname(asym->name),
typencid(basetype),
len,
cname(asym));
codedump(stmt);
break;
case NC_STRING:
if(usingclassic) {
verror("Non-classic type: %s",nctypename(basetype->typ.typecode));
return;
}
bbprintf0(stmt,"%sstat = nc_put_att_%s(%s, %s, \"%s\", %lu, %s_att);",
indented(1),
ncstype(basetype->typ.typecode),
groupncid(asym->container),
(asym->att.var == NULL?"NC_GLOBAL"
:varncid(asym->att.var)),
escapifyname(asym->name),
len,
cname(asym));
codedump(stmt);
break;
#endif
default: /* User defined type */
#ifndef USE_NETCDF4
verror("Non-classic type: %s",nctypename(basetype->typ.typecode));
#else /* USE_NETCDF4 */
if(usingclassic && !isclassicprim(basetype->typ.typecode)) {
verror("Non-classic type: %s",nctypename(basetype->typ.typecode));
}
bbprintf0(stmt,"%sstat = nc_put_att(%s, %s, \"%s\", %s, %lu, %s_att);\n",
indented(1),
groupncid(asym->container),
(asym->att.var == NULL?"NC_GLOBAL"
:varncid(asym->att.var)),
escapifyname(asym->name),
typencid(basetype),
len,
cname(asym));
codedump(stmt);
#endif
break;
}
codelined(1,"check_err(stat,__LINE__,__FILE__);");
codelined(1,"}");
}
/* Compute the C name for a given symbol;
modified to use the fqn
*/
const char*
cname(Symbol* sym)
{
char* name;
assert (sym->fqn != NULL && sym->name != NULL);
/* Convert the fqn as its C name. */
if(sym->grp.is_root)
name = codify(sym->name);
else
name = codify(sym->fqn);
return name;
}
#endif /*ENABLE_C*/
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