class ActionView::Template::Handlers::ERB
Constants
Public class methods
Source code GitHub
# File actionview/lib/action_view/template/handlers/erb.rb, line 29
def self.call(template, source)
new.call(template, source)
end
Public instance methods
Source code GitHub
# File actionview/lib/action_view/template/handlers/erb.rb, line 65
def call(template, source)
# First, convert to BINARY, so in case the encoding is
# wrong, we can still find an encoding tag
# (<%# encoding %>) inside the String using a regular
# expression
template_source = source.b
erb = template_source.gsub(ENCODING_TAG, "")
encoding = $2
erb.force_encoding valid_encoding(source.dup, encoding)
# Always make sure we return a String in the default_internal
erb.encode!
# Strip trailing newlines from the template if enabled
erb.chomp! if strip_trailing_newlines
options = {
escape: (self.class.escape_ignore_list.include? template.type),
trim: (self.class.erb_trim_mode == "-")
}
if ActionView::Base.annotate_rendered_view_with_filenames && template.format == :html
options[:preamble] = "@output_buffer.safe_append='<!-- BEGIN #{template.short_identifier} -->';"
options[:postamble] = "@output_buffer.safe_append='<!-- END #{template.short_identifier} -->';@output_buffer"
end
self.class.erb_implementation.new(erb, options).src
end
Source code GitHub
# File actionview/lib/action_view/template/handlers/erb.rb, line 37
def handles_encoding?
true
end
Source code GitHub
# File actionview/lib/action_view/template/handlers/erb.rb, line 33
def supports_streaming?
true
end
Translate an error location returned by ErrorHighlight to the correct source location inside the template.
Source code GitHub
# File actionview/lib/action_view/template/handlers/erb.rb, line 43
def translate_location(spot, _backtrace_location, source)
compiled = spot[:script_lines]
highlight = compiled[spot[:first_lineno] - 1]&.byteslice((spot[:first_column] - 1)...spot[:last_column])
return nil if highlight.blank?
source_lines = source.lines
lineno_delta = find_lineno_offset(compiled, source_lines, highlight, spot[:first_lineno])
tokens = ::ERB::Util.tokenize(source_lines[spot[:first_lineno] - lineno_delta - 1])
column_delta = find_offset(spot[:snippet], tokens, spot[:first_column])
spot[:first_lineno] -= lineno_delta
spot[:last_lineno] -= lineno_delta
spot[:first_column] -= column_delta
spot[:last_column] -= column_delta
spot[:script_lines] = source_lines
spot
rescue NotImplementedError, LocationParsingError
nil
end