1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
# encoding: utf-8
# This is so that templates compiled in this file are UTF-8
require 'set'
require "action_view/template/resolver"
module ActionView
class Template
extend ActiveSupport::Autoload
eager_autoload do
autoload :Error
autoload :Handler
autoload :Handlers
autoload :Text
end
extend Template::Handlers
attr_reader :source, :identifier, :handler, :virtual_path, :formats
def initialize(source, identifier, handler, details)
@source = source
@identifier = identifier
@handler = handler
@partial = details[:partial]
@virtual_path = details[:virtual_path]
@method_names = {}
format = details[:format]
format ||= handler.default_format.to_sym if handler.respond_to?(:default_format)
format ||= :html
@formats = [format.to_sym]
end
def render(view, locals, &block)
method_name = compile(locals, view)
view.send(method_name, locals, &block)
rescue Exception => e
if e.is_a?(Template::Error)
e.sub_template_of(self)
raise e
else
raise Template::Error.new(self, view.assigns, e)
end
end
def mime_type
@mime_type ||= Mime::Type.lookup_by_extension(@formats.first.to_s) if @formats.first
end
def variable_name
@variable_name ||= @virtual_path[%r'_?(\w+)(\.\w+)*$', 1].to_sym
end
def counter_name
@counter_name ||= "#{variable_name}_counter".to_sym
end
def partial?
@partial
end
def inspect
if defined?(Rails.root)
identifier.sub("#{Rails.root}/", '')
else
identifier
end
end
private
def compile(locals, view)
method_name = build_method_name(locals)
return method_name if view.respond_to?(method_name)
locals_code = locals.keys.map! { |key| "#{key} = local_assigns[:#{key}];" }.join
code = @handler.call(self)
if code.sub!(/\A(#.*coding.*)\n/, '')
encoding_comment = $1
elsif defined?(Encoding) && Encoding.respond_to?(:default_external)
encoding_comment = "#coding:#{Encoding.default_external}"
end
source = <<-end_src
def #{method_name}(local_assigns)
_old_virtual_path, @_virtual_path = @_virtual_path, #{@virtual_path.inspect};_old_output_buffer = output_buffer;#{locals_code};#{code}
ensure
@_virtual_path, self.output_buffer = _old_virtual_path, _old_output_buffer
end
end_src
if encoding_comment
source = "#{encoding_comment}\n#{source}"
line = -1
else
line = 0
end
begin
ActionView::CompiledTemplates.module_eval(source, identifier, line)
method_name
rescue Exception => e # errors from template code
if logger = (view && view.logger)
logger.debug "ERROR: compiling #{method_name} RAISED #{e}"
logger.debug "Function body: #{source}"
logger.debug "Backtrace: #{e.backtrace.join("\n")}"
end
raise ActionView::Template::Error.new(self, {}, e)
end
end
def build_method_name(locals)
# TODO: is locals.keys.hash reliably the same?
@method_names[locals.keys.hash] ||=
"_render_template_#{@identifier.hash}_#{__id__}_#{locals.keys.hash}".gsub('-', "_")
end
end
end
|
