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# $Id: ASCII.py,v 1.34 2003/11/13 17:21:03 stefan Exp $
#
# Copyright (C) 2000 Stefan Seefeld
# Copyright (C) 2000 Stephen Davies
# All rights reserved.
# Licensed to the public under the terms of the GNU LGPL (>= 2),
# see the file COPYING for details.
#
"""
Outputs the AST in plain ascii format similar to input.
"""
from Synopsis.Processor import Processor, Parameter
from Synopsis import Type, AST, Util
import sys, getopt, os, os.path, string
class Formatter(Processor, AST.Visitor, Type.Visitor):
"""
outputs as ascii. This is to test for features
still missing. The output should be compatible
with the input...
"""
bold_comments = Parameter(False, 'Bold comments')
comment_color = Parameter(None, 'Colored comments, color = 0 to 15')
def process(self, ast, **kwds):
self.set_parameters(kwds)
self.ast = self.merge_input(ast)
self.__os = open(self.output, "w")
self.__indent = 0
self.__istring = " "
self.__scope = []
self.__axs = AST.DEFAULT
self.__axs_stack = []
self.__axs_string = ('default:\n','public:\n','protected:\n','private:\n')
self.__enumers = []
self.__id_holder = None
self.__os.write('hi there')
if self.comment_color is not None:
self.comment_str = "\033[3%d%sm// %%s\033[m\n"%(
self.comment_color % 8,
(self.comment_color >= 8) and ";1" or "")
elif self.bold_comments:
self.comment_str = "\033[1m// %s\033[m\n"
else:
self.comment_str = "// %s\n"
for declaration in self.ast.declarations():
declaration.accept(self)
self.__os.close()
return self.ast
def indent(self): self.__os.write(self.__istring * self.__indent)
def incr(self): self.__indent = self.__indent + 1
def decr(self): self.__indent = self.__indent - 1
def scope(self): return self.__scope
def set_scope(self, name): self.__scope = list(name)
def enter_scope(self, name): self.__scope.append(name),self.incr()
def leave_scope(self): self.__scope.pop(),self.decr()
def write(self, text): self.__os.write(text)
def format_type(self, type, id_holder = None):
if type is None: return '(unknown)'
if id_holder: self.__id_holder = id_holder
type.accept(self)
if id_holder: self.__id_holder = None
return self.__type
#################### Type Visitor ##########################################
def visitBaseType(self, type):
self.__type = Util.ccolonName(type.name())
def visitDependent(self, type):
self.__type = type.name()[-1]
def visitUnknown(self, type):
self.__type = Util.ccolonName(type.name(), self.scope())
def visitDeclared(self, type):
self.__type = Util.ccolonName(type.name(), self.scope())
def visitModifier(self, type):
aliasStr = self.format_type(type.alias())
premod = map(lambda x:x+" ", type.premod())
self.__type = "%s%s%s"%(string.join(premod,''), aliasStr,
string.join(type.postmod(),''))
def visitParametrized(self, type):
temp = self.format_type(type.template())
params = map(self.format_type, type.parameters())
self.__type = "%s<%s>"%(temp,string.join(params, ", "))
def visitFunctionType(self, type):
ret = self.format_type(type.returnType())
params = map(self.format_type, type.parameters())
premod = string.join(type.premod(),'')
if self.__id_holder:
ident = self.__id_holder[0]
del self.__id_holder[0]
else:
ident = ''
self.__type = "%s(%s%s)(%s)"%(ret,premod,ident,string.join(params,", "))
def visitTemplate(self, type):
self.visitDeclared(type)
#self.__type = "template<"+string.join(map(self.format_type, type.parameters()),",")+">"+self.__type
### AST visitor
def visitDeclaration(self, decl):
axs = decl.accessibility()
if axs != self.__axs:
self.decr(); self.indent(); self.incr()
self.write(self.__axs_string[axs])
self.__axs = axs
self.writeComments(decl.comments())
def visitMacro(self, macro):
self.visitDeclaration(macro)
self.indent()
params = ''
if macro.parameters() is not None:
params = '(' + string.join(macro.parameters(), ', ') + ')'
self.write("#define %s%s %s\n"%(macro.name()[-1], params, macro.text()))
def writeComments(self, comments):
for comment in comments:
text = comment.text()
if not text: continue
lines = string.split(text, "\n")
for line in lines:
self.indent()
self.write(self.comment_str%line)
def visitTypedef(self, typedef):
self.visitDeclaration(typedef)
self.indent()
dstr = ""
# Figure out the type:
alias = self.format_type(typedef.alias())
# Figure out the declarators:
# for declarator in typedef.declarators():
# dstr = dstr + declarator.name()[-1]
# if declarator.sizes() is None: continue
# for size in declarator.sizes():
# dstr = dstr + "[%d]"%size
self.write("typedef %s %s;\n"%(alias, typedef.name()[-1]))
def visitModule(self, module):
self.visitDeclaration(module)
self.indent()
self.write("%s %s {\n"%(module.type(),module.name()[-1]))
self.enter_scope(module.name()[-1])
#for type in module.types(): type.output(self)
for declaration in module.declarations():
declaration.accept(self)
self.leave_scope()
self.indent()
self.write("}\n")
def visitMetaModule(self, module):
self.visitDeclaration(module)
for decl in module.module_declarations():
self.visitDeclaration(decl)
# since no comments:
self.visitModule(module)
def visitClass(self, clas):
self.visitDeclaration(clas)
self.indent()
self.write("%s %s"%(clas.type(),clas.name()[-1]))
if len(clas.parents()):
self.write(": ")
p = []
for parent in clas.parents():
p.append(self.format_type(parent.parent()))
#p.append("%s"%(Util.ccolonName(parent.parent().name(),clas.name()),))
self.write(string.join(p, ", "))
self.write(" {\n")
self.enter_scope(clas.name()[-1])
self.__axs_stack.append(self.__axs)
if clas.type() == 'struct': self.__axs = AST.PUBLIC
elif clas.type() == 'class': self.__axs = AST.PRIVATE
else: self.__axs = AST.DEFAULT
#for type in clas.types(): type.output(self)
#for operation in clas.operations(): operation.output(self)
for declaration in clas.declarations():
declaration.accept(self)
self.__axs = self.__axs_stack.pop()
self.leave_scope()
self.indent()
self.write("};\n")
def visitInheritance(self, inheritance):
for attribute in inheritance.attributes(): self.write(attribute + " ")
self.write(inheritance.parent().identifier())
def visitParameter(self, parameter):
spacer = lambda x: str(x)+" "
premod = string.join(map(spacer,parameter.premodifier()),'')
id_holder = [parameter.identifier()]
type = self.format_type(parameter.type(), id_holder)
postmod = string.join(map(spacer,parameter.postmodifier()),'')
name = ""
value = ""
if id_holder and len(parameter.identifier()) != 0:
name = " " + parameter.identifier()
if len(parameter.value()) != 0:
value = " = %s"%parameter.value()
self.__params.append(premod + type + postmod + name + value)
def visitFunction(self, function):
self.visitOperation(function)
def visitOperation(self, operation):
self.visitDeclaration(operation)
self.indent()
for modifier in operation.premodifier(): self.write(modifier + " ")
retStr = self.format_type(operation.returnType())
name = operation.realname()
if operation.language() == "IDL" and operation.type() == "attribute":
self.write("attribute %s %s"%(retStr,name[-1]))
else:
if operation.language() == "C++" and len(name)>1 and name[-1] in [name[-2],"~"+name[-2]]:
self.write("%s("%name[-1])
else:
if retStr: self.write(retStr+" ")
self.write("%s("%name[-1])
self.__params = []
for parameter in operation.parameters(): parameter.accept(self)
params = string.join(self.__params, ", ")
self.write(params + ")")
for modifier in operation.postmodifier(): self.write(modifier + " ")
self.write(";\n")
def visitVariable(self, var):
self.visitDeclaration(var)
name = var.name
self.indent()
self.write("%s %s;\n"%(self.format_type(var.vtype()),var.name()[-1]))
def visitEnum(self, enum):
self.visitDeclaration(enum)
self.indent()
istr = self.__istring * (self.__indent+1)
self.write("enum %s {"%enum.name()[-1])
self.__enumers = []
comma = ''
for enumer in enum.enumerators():
self.write(comma+'\n'+istr)
enumer.accept(self)
comma = ','
self.write("\n")
self.indent()
self.write("}\n")
def visitEnumerator(self, enumer):
self.writeComments(enumer.comments())
if enumer.value() == "":
self.write("%s"%enumer.name()[-1])
else:
self.write("%s = %s"%(enumer.name()[-1], enumer.value()))
def visitConst(self, const):
self.visitDeclaration(const)
ctype = self.format_type(const.ctype())
self.indent()
self.__os.write("%s %s = %s;\n"%(ctype,const.name()[-1],const.value()))
def print_types(types):
keys = types.keys()
keys.sort()
for name in keys:
type = types[name]
clas = type.__class__
if isinstance(type, Type.Declared):
clas = type.declaration().__class__
try:
print "%s\t%s"%(string.split(clas.__name__,'.')[-1], Util.ccolonName(name))
except:
print "name ==",name
raise
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