mirror of https://github.com/django/django.git
Moved the various Debug classes in django.template to a new module, debug.py, so they're only loaded if DEBUG=True. This led to a DEBUG=False memory savings of one 4-KB memory block on my machine, according to ps
git-svn-id: http://code.djangoproject.com/svn/django/trunk@6969 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty
parent
c5d3a925c7
commit
6557dc954b
|
|
@ -226,30 +226,6 @@ class Lexer(object):
|
|||
token = Token(TOKEN_TEXT, token_string)
|
||||
return token
|
||||
|
||||
class DebugLexer(Lexer):
|
||||
def __init__(self, template_string, origin):
|
||||
super(DebugLexer, self).__init__(template_string, origin)
|
||||
|
||||
def tokenize(self):
|
||||
"Return a list of tokens from a given template_string"
|
||||
result, upto = [], 0
|
||||
for match in tag_re.finditer(self.template_string):
|
||||
start, end = match.span()
|
||||
if start > upto:
|
||||
result.append(self.create_token(self.template_string[upto:start], (upto, start), False))
|
||||
upto = start
|
||||
result.append(self.create_token(self.template_string[start:end], (start, end), True))
|
||||
upto = end
|
||||
last_bit = self.template_string[upto:]
|
||||
if last_bit:
|
||||
result.append(self.create_token(last_bit, (upto, upto + len(last_bit)), False))
|
||||
return result
|
||||
|
||||
def create_token(self, token_string, source, in_tag):
|
||||
token = super(DebugLexer, self).create_token(token_string, in_tag)
|
||||
token.source = self.origin, source
|
||||
return token
|
||||
|
||||
class Parser(object):
|
||||
def __init__(self, tokens):
|
||||
self.tokens = tokens
|
||||
|
|
@ -360,52 +336,16 @@ class Parser(object):
|
|||
else:
|
||||
raise TemplateSyntaxError, "Invalid filter: '%s'" % filter_name
|
||||
|
||||
class DebugParser(Parser):
|
||||
def __init__(self, lexer):
|
||||
super(DebugParser, self).__init__(lexer)
|
||||
self.command_stack = []
|
||||
|
||||
def enter_command(self, command, token):
|
||||
self.command_stack.append( (command, token.source) )
|
||||
|
||||
def exit_command(self):
|
||||
self.command_stack.pop()
|
||||
|
||||
def error(self, token, msg):
|
||||
return self.source_error(token.source, msg)
|
||||
|
||||
def source_error(self, source,msg):
|
||||
e = TemplateSyntaxError(msg)
|
||||
e.source = source
|
||||
return e
|
||||
|
||||
def create_nodelist(self):
|
||||
return DebugNodeList()
|
||||
|
||||
def create_variable_node(self, contents):
|
||||
return DebugVariableNode(contents)
|
||||
|
||||
def extend_nodelist(self, nodelist, node, token):
|
||||
node.source = token.source
|
||||
super(DebugParser, self).extend_nodelist(nodelist, node, token)
|
||||
|
||||
def unclosed_block_tag(self, parse_until):
|
||||
command, source = self.command_stack.pop()
|
||||
msg = "Unclosed tag '%s'. Looking for one of: %s " % (command, ', '.join(parse_until))
|
||||
raise self.source_error( source, msg)
|
||||
|
||||
def compile_function_error(self, token, e):
|
||||
if not hasattr(e, 'source'):
|
||||
e.source = token.source
|
||||
|
||||
def lexer_factory(*args, **kwargs):
|
||||
if settings.TEMPLATE_DEBUG:
|
||||
from debug import DebugLexer
|
||||
return DebugLexer(*args, **kwargs)
|
||||
else:
|
||||
return Lexer(*args, **kwargs)
|
||||
|
||||
def parser_factory(*args, **kwargs):
|
||||
if settings.TEMPLATE_DEBUG:
|
||||
from debug import DebugParser
|
||||
return DebugParser(*args, **kwargs)
|
||||
else:
|
||||
return Parser(*args, **kwargs)
|
||||
|
|
@ -816,22 +756,6 @@ class NodeList(list):
|
|||
def render_node(self, node, context):
|
||||
return node.render(context)
|
||||
|
||||
class DebugNodeList(NodeList):
|
||||
def render_node(self, node, context):
|
||||
try:
|
||||
result = node.render(context)
|
||||
except TemplateSyntaxError, e:
|
||||
if not hasattr(e, 'source'):
|
||||
e.source = node.source
|
||||
raise
|
||||
except Exception, e:
|
||||
from sys import exc_info
|
||||
wrapped = TemplateSyntaxError('Caught an exception while rendering: %s' % e)
|
||||
wrapped.source = node.source
|
||||
wrapped.exc_info = exc_info()
|
||||
raise wrapped
|
||||
return result
|
||||
|
||||
class TextNode(Node):
|
||||
def __init__(self, s):
|
||||
self.s = s
|
||||
|
|
@ -861,21 +785,6 @@ class VariableNode(Node):
|
|||
else:
|
||||
return force_unicode(output)
|
||||
|
||||
class DebugVariableNode(VariableNode):
|
||||
def render(self, context):
|
||||
try:
|
||||
output = force_unicode(self.filter_expression.resolve(context))
|
||||
except TemplateSyntaxError, e:
|
||||
if not hasattr(e, 'source'):
|
||||
e.source = self.source
|
||||
raise
|
||||
except UnicodeDecodeError:
|
||||
return ''
|
||||
if (context.autoescape and not isinstance(output, SafeData)) or isinstance(output, EscapeData):
|
||||
return escape(output)
|
||||
else:
|
||||
return output
|
||||
|
||||
def generic_tag_compiler(params, defaults, name, node_class, parser, token):
|
||||
"Returns a template.Node subclass."
|
||||
bits = token.split_contents()[1:]
|
||||
|
|
|
|||
|
|
@ -0,0 +1,97 @@
|
|||
from django.template import Lexer, Parser, tag_re, NodeList, VariableNode, TemplateSyntaxError
|
||||
from django.utils.encoding import force_unicode
|
||||
from django.utils.html import escape
|
||||
from django.utils.safestring import SafeData, EscapeData
|
||||
|
||||
class DebugLexer(Lexer):
|
||||
def __init__(self, template_string, origin):
|
||||
super(DebugLexer, self).__init__(template_string, origin)
|
||||
|
||||
def tokenize(self):
|
||||
"Return a list of tokens from a given template_string"
|
||||
result, upto = [], 0
|
||||
for match in tag_re.finditer(self.template_string):
|
||||
start, end = match.span()
|
||||
if start > upto:
|
||||
result.append(self.create_token(self.template_string[upto:start], (upto, start), False))
|
||||
upto = start
|
||||
result.append(self.create_token(self.template_string[start:end], (start, end), True))
|
||||
upto = end
|
||||
last_bit = self.template_string[upto:]
|
||||
if last_bit:
|
||||
result.append(self.create_token(last_bit, (upto, upto + len(last_bit)), False))
|
||||
return result
|
||||
|
||||
def create_token(self, token_string, source, in_tag):
|
||||
token = super(DebugLexer, self).create_token(token_string, in_tag)
|
||||
token.source = self.origin, source
|
||||
return token
|
||||
|
||||
class DebugParser(Parser):
|
||||
def __init__(self, lexer):
|
||||
super(DebugParser, self).__init__(lexer)
|
||||
self.command_stack = []
|
||||
|
||||
def enter_command(self, command, token):
|
||||
self.command_stack.append( (command, token.source) )
|
||||
|
||||
def exit_command(self):
|
||||
self.command_stack.pop()
|
||||
|
||||
def error(self, token, msg):
|
||||
return self.source_error(token.source, msg)
|
||||
|
||||
def source_error(self, source,msg):
|
||||
e = TemplateSyntaxError(msg)
|
||||
e.source = source
|
||||
return e
|
||||
|
||||
def create_nodelist(self):
|
||||
return DebugNodeList()
|
||||
|
||||
def create_variable_node(self, contents):
|
||||
return DebugVariableNode(contents)
|
||||
|
||||
def extend_nodelist(self, nodelist, node, token):
|
||||
node.source = token.source
|
||||
super(DebugParser, self).extend_nodelist(nodelist, node, token)
|
||||
|
||||
def unclosed_block_tag(self, parse_until):
|
||||
command, source = self.command_stack.pop()
|
||||
msg = "Unclosed tag '%s'. Looking for one of: %s " % (command, ', '.join(parse_until))
|
||||
raise self.source_error(source, msg)
|
||||
|
||||
def compile_function_error(self, token, e):
|
||||
if not hasattr(e, 'source'):
|
||||
e.source = token.source
|
||||
|
||||
class DebugNodeList(NodeList):
|
||||
def render_node(self, node, context):
|
||||
try:
|
||||
result = node.render(context)
|
||||
except TemplateSyntaxError, e:
|
||||
if not hasattr(e, 'source'):
|
||||
e.source = node.source
|
||||
raise
|
||||
except Exception, e:
|
||||
from sys import exc_info
|
||||
wrapped = TemplateSyntaxError('Caught an exception while rendering: %s' % e)
|
||||
wrapped.source = node.source
|
||||
wrapped.exc_info = exc_info()
|
||||
raise wrapped
|
||||
return result
|
||||
|
||||
class DebugVariableNode(VariableNode):
|
||||
def render(self, context):
|
||||
try:
|
||||
output = force_unicode(self.filter_expression.resolve(context))
|
||||
except TemplateSyntaxError, e:
|
||||
if not hasattr(e, 'source'):
|
||||
e.source = self.source
|
||||
raise
|
||||
except UnicodeDecodeError:
|
||||
return ''
|
||||
if (context.autoescape and not isinstance(output, SafeData)) or isinstance(output, EscapeData):
|
||||
return escape(output)
|
||||
else:
|
||||
return output
|
||||
Loading…
Reference in New Issue