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authorGuy Harris <guy@alum.mit.edu>2002-01-23 23:15:32 +0000
committerGuy Harris <guy@alum.mit.edu>2002-01-23 23:15:32 +0000
commit910c2ee8308a317adf2af85b34787416c23438c4 (patch)
treeb772a658b0dde044592bcbf58a2ef07c3dd48fd2
parent33a5bc4772a222dc69d2b871e243e4f3ef349ea9 (diff)
From Frank Singleton:
- Cleanup of unused code after implementing recursion - Fix some spelling errors. svn path=/trunk/; revision=4603
-rw-r--r--ethereal_gen.py192
1 files changed, 7 insertions, 185 deletions
diff --git a/ethereal_gen.py b/ethereal_gen.py
index ef77131c85..3c7e193e7e 100644
--- a/ethereal_gen.py
+++ b/ethereal_gen.py
@@ -1,6 +1,6 @@
# -*- python -*-
#
-# $Id: ethereal_gen.py,v 1.21 2002/01/21 21:59:10 guy Exp $
+# $Id: ethereal_gen.py,v 1.22 2002/01/23 23:15:32 guy Exp $
#
# ethereal_gen.py (part of idl2eth)
#
@@ -37,7 +37,7 @@
#
# Omniidl Back-end which parses an IDL list of "Operation" nodes
# passed from ethereal_be2.py and generates "C" code for compiling
-# as a dissector in Ethereal IP protocol anlayser.
+# as a plugin for the Ethereal IP Protocol Analyser.
#
#
# Strategy (sneaky but ...)
@@ -96,7 +96,7 @@ import tempfile
# 14. Dont generate code for empty operations (cf: exceptions without members)
# 15. Generate code to display Enums numerically and symbolically [done]
# 16. Place structs/unions in subtrees
-# 17. Recursive struct and union handling [started - pass struct and union list to ethereal_gen.py ]
+# 17. Recursive struct and union handling [done ]
# 18. Improve variable naming for display (eg: structs, unions etc)
#
# Also test, Test, TEST
@@ -173,8 +173,6 @@ class ethereal_gen_C:
def genCode(self,oplist, atlist, enlist, stlist, unlist): # operation,attribute,enums,struct and union lists
- #self.st = self.st_save # test remove later
- #self.genDeclares(oplist,atlist,enlist,stlist,unlist) # test remove later
self.genHelpers(oplist,stlist,unlist) # sneaky .. call it now, to populate the fn_hash
# so when I come to that operation later, I have the variables to
@@ -355,7 +353,6 @@ class ethereal_gen_C:
self.st.dec_indent()
self.st.out(self.template_main_dissector_switch_msgtype_all_other_msgtype)
self.st.dec_indent()
- #self.st.out(self.template_main_dissector_switch_msgtype_end)
self.st.out(self.template_main_dissector_end)
@@ -997,8 +994,7 @@ class ethereal_gen_C:
#self.get_CDR_enum(pn)
elif pt == idltype.tk_struct:
- ##self.get_CDR_struct(type,pn)
- self.get_CDR_struct2(type,pn)
+ self.get_CDR_struct(type,pn)
elif pt == idltype.tk_TypeCode: # will I ever get here ?
self.get_CDR_TypeCode(type,pn)
elif pt == idltype.tk_sequence:
@@ -1008,7 +1004,7 @@ class ethereal_gen_C:
elif pt == idltype.tk_array:
self.get_CDR_array(type,pn)
elif pt == idltype.tk_union:
- self.get_CDR_union2(type,pn)
+ self.get_CDR_union(type,pn)
elif pt == idltype.tk_alias:
if self.DEBUG:
print "XXXXX Alias type XXXXX " , type
@@ -1113,142 +1109,9 @@ class ethereal_gen_C:
self.st.out(self.template_get_CDR_sequence_length, seqname=pn)
self.addvar(self.c_u_octet4)
- def get_CDR_union(self,type,pn):
- if self.DEBUG:
- print "XXX Union type =" , type, " pn = ",pn
- print "XXX Union type.decl()" , type.decl()
- print "XXX Union Scoped Name" , type.scopedName()
-
- # If I am a typedef union {..}; node then find the union node
-
- if isinstance(type.decl(), idlast.Declarator):
- ntype = type.decl().alias().aliasType().decl()
- else:
- ntype = type.decl() # I am a union node
-
- if self.DEBUG:
- print "XXX Union ntype =" , ntype
-
- if ntype.recursive():
- sys.stderr.write( "Error: idl2eth does not handle recursive unions yet \n")
- sys.exit(1)
-
- st = ntype.switchType().unalias() # may be typedef switch type, so find real type
-
- #std = st.decl()
-
- if self.DEBUG:
- print "XXX Union ntype =" , ntype
- print "XXX Union ntype.switchType =" , st
- #print "XXX Union ntype.switchType().decl() = " , std
- #print "XXX Union std.repoId() = ", std.repoId()
-
-
- self.st.out(self.template_comment_union_code_start, uname=ntype.repoId() )
-
- self.getCDR3(st,pn);
-
- # Depending on what kind of discriminant I come accross (enum,integer,char,
- # boolean), make sure I cast the return value of the get_XXX accessor
- # to an appropriate value. Omniidl idlast.CaseLabel.value() accessor will
- # return an integer, or an Enumerator object that is then converted to its
- # integer equivalent.
- #
- #
- # NOTE - May be able to skip some of this stuff, but leave it in for now -- FS
- #
-
- if (st.kind() == idltype.tk_enum):
- std = st.decl()
- self.st.out(self.template_comment_union_code_discriminant, uname=std.repoId() )
- self.st.out(self.template_union_code_save_discriminant_enum, discname=pn )
- self.addvar(self.c_s_disc + pn + ";")
-
- elif (st.kind() == idltype.tk_long):
- self.st.out(self.template_union_code_save_discriminant_long, discname=pn )
- self.addvar(self.c_s_disc + pn + ";")
-
- elif (st.kind() == idltype.tk_short):
- self.st.out(self.template_union_code_save_discriminant_short, discname=pn )
- self.addvar(self.c_s_disc + pn + ";")
-
- elif (st.kind() == idltype.tk_boolean):
- self.st.out(self.template_union_code_save_discriminant_boolean, discname=pn )
- self.addvar(self.c_s_disc + pn + ";")
-
- elif (st.kind() == idltype.tk_char):
- self.st.out(self.template_union_code_save_discriminant_char, discname=pn )
- self.addvar(self.c_s_disc + pn + ";")
-
- else:
- print "XXX Unknown st.kind() = ", st.kind()
-
- #
- # Loop over all cases in this union
- #
-
- for uc in ntype.cases(): # for all UnionCase objects in this union
- for cl in uc.labels(): # for all Caselabel objects in this UnionCase
-
- # get integer value, even if discriminant is
- # an Enumerator node
-
- if isinstance(cl.value(),idlast.Enumerator):
- if self.DEBUG:
- print "XXX clv.identifier()", cl.value().identifier()
- print "XXX clv.repoId()", cl.value().repoId()
- print "XXX clv.scopedName()", cl.value().scopedName()
-
- # find index of enumerator in enum declaration
- # eg: RED is index 0 in enum Colors { RED, BLUE, GREEN }
-
- clv = self.valFromEnum(std,cl.value())
-
- else:
- clv = cl.value()
-
- #print "XXX clv = ",clv
-
- #
- # if char, dont convert to int, but put inside single quotes so that it is understood by C.
- # eg: if (disc == 'b')..
- #
- # TODO : handle \xxx chars generically from a function or table lookup rather than
- # a whole bunch of "if" statements. -- FS
-
-
- if (st.kind() == idltype.tk_char):
- if (clv == '\n'): # newline
- string_clv = "'\\n'"
- elif (clv == '\t'): # tab
- string_clv = "'\\t'"
- else:
- string_clv = "'" + clv + "'"
- else:
- string_clv = '%i ' % clv
-
- #
- # If default case, then skp comparison with discriminator
- #
-
- if not cl.default():
- self.st.out(self.template_comment_union_code_label_compare_start, discname=pn,labelval=string_clv )
- self.st.inc_indent()
- else:
- self.st.out(self.template_comment_union_code_label_default_start )
-
-
- self.getCDR3(uc.caseType(),uc.declarator().identifier())
-
- if not cl.default():
- self.st.dec_indent()
- self.st.out(self.template_comment_union_code_label_compare_end )
- else:
- self.st.out(self.template_comment_union_code_label_default_end )
-
- def get_CDR_union2(self,type,pn):
+ def get_CDR_union(self,type,pn):
if self.DEBUG:
print "XXX Union type =" , type, " pn = ",pn
print "XXX Union type.decl()" , type.decl()
@@ -1272,12 +1135,7 @@ class ethereal_gen_C:
self.st.out(self.template_decode_union,name=sname)
self.st.out(self.template_union_end, name=sname )
-
-## if ntype.recursive():
-## sys.stderr.write( "Error: idl2eth does not handle recursive unions yet \n")
-## sys.exit(1)
- st = ntype.switchType().unalias() # may be typedef switch type, so find real type
#
# Code to generate Union Helper functions
@@ -1310,8 +1168,6 @@ class ethereal_gen_C:
st = un.switchType().unalias() # may be typedef switch type, so find real type
- #std = st.decl()
-
self.st.out(self.template_comment_union_code_start, uname=un.repoId() )
self.getCDR3(st,un.identifier());
@@ -1457,45 +1313,11 @@ class ethereal_gen_C:
- def get_CDR_struct(self,type,pn):
- self.st.out(self.template_structure_start, name=type.name() )
-
- # If I am a typedef struct {..}; node then find the struct node
-
- if isinstance(type.decl(), idlast.Declarator):
- ntype = type.decl().alias().aliasType().decl()
- else:
- ntype = type.decl() # I am a struct node
-
- if ntype.recursive():
- sys.stderr.write("Error: idl2eth does not handle recursive structs yet \n")
- sys.exit(1)
-
- for m in ntype.members():
- for decl in m.declarators():
- if decl.sizes(): # an array
- indices = self.get_indices_from_sizes(decl.sizes())
- string_indices = '%i ' % indices # convert int to string
- self.st.out(self.template_get_CDR_array_comment, aname=decl.identifier(), asize=string_indices)
- self.st.out(self.template_get_CDR_array_start, aname=decl.identifier(), aval=string_indices)
- self.addvar(self.c_i + decl.identifier() + ";")
-
- self.st.inc_indent()
- self.getCDR3(m.memberType(), type.name() + "_" + decl.identifier() )
- self.st.dec_indent()
- self.st.out(self.template_get_CDR_array_end)
-
-
- else:
- self.getCDR3(m.memberType(), type.name() + "_" + decl.identifier() )
-
- self.st.out(self.template_structure_end, name=type.name())
-
#
# Handle structs, including recursive
#
- def get_CDR_struct2(self,type,pn):
+ def get_CDR_struct(self,type,pn):
# If I am a typedef struct {..}; node then find the struct node