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#!/usr/bin/env python
#############################################################################
#
# Copyright 2008 Tungsten Graphics, Inc.
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
#############################################################################
'''Trace data model.'''
class Node:
def visit(self, visitor):
raise NotImplementedError
class Literal(Node):
def __init__(self, value):
self.value = value
def visit(self, visitor):
visitor.visit_literal(self)
def __str__(self):
if isinstance(self.value, str) and len(self.value) > 32:
return '...'
else:
return repr(self.value)
class NamedConstant(Node):
def __init__(self, name):
self.name = name
def visit(self, visitor):
visitor.visit_named_constant(self)
def __str__(self):
return self.name
class Array(Node):
def __init__(self, elements):
self.elements = elements
def visit(self, visitor):
visitor.visit_array(self)
def __str__(self):
return '{' + ', '.join([str(value) for value in self.elements]) + '}'
class Struct(Node):
def __init__(self, name, members):
self.name = name
self.members = members
def visit(self, visitor):
visitor.visit_struct(self)
def __str__(self):
return '{' + ', '.join([name + ' = ' + str(value) for name, value in self.members]) + '}'
class Pointer(Node):
def __init__(self, address):
self.address = address
def visit(self, visitor):
visitor.visit_pointer(self)
def __str__(self):
return self.address
class Call:
def __init__(self, klass, method, args, ret):
self.klass = klass
self.method = method
self.args = args
self.ret = ret
def visit(self, visitor):
visitor.visit_call(self)
def __str__(self):
s = self.method
if self.klass:
s = self.klass + '::' + s
s += '(' + ', '.join([name + ' = ' + str(value) for name, value in self.args]) + ')'
if self.ret is not None:
s += ' = ' + str(self.ret)
return s
class Trace:
def __init__(self, calls):
self.calls = calls
def visit(self, visitor):
visitor.visit_trace(self)
def __str__(self):
return '\n'.join([str(call) for call in self.calls])
class Visitor:
def visit_literal(self, node):
raise NotImplementedError
def visit_named_constant(self, node):
raise NotImplementedError
def visit_array(self, node):
raise NotImplementedError
def visit_struct(self, node):
raise NotImplementedError
def visit_pointer(self, node):
raise NotImplementedError
def visit_call(self, node):
raise NotImplementedError
def visit_trace(self, node):
raise NotImplementedError
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