class Synvert::Core::Rewriter::ReplaceErbStmtWithExprAction

ReplaceErbStmtWithExprAction to replace erb stmt code to expr,

e.g. <% form_for ... %> => <%= form_for ... %>.

Public Class Methods

new(instance, code = nil) click to toggle source
Calls superclass method Synvert::Core::Rewriter::Action::new
# File lib/synvert/core/rewriter/action/replace_erb_stmt_with_expr_action.rb, line 7
def initialize(instance, code = nil)
  super
end

Public Instance Methods

begin_pos() click to toggle source

Begin position of code to replace.

@return [Integer] begin position.

# File lib/synvert/core/rewriter/action/replace_erb_stmt_with_expr_action.rb, line 14
def begin_pos
  node_begin_pos = @node.loc.expression.begin_pos
  while @node.loc.expression.source_buffer.source[node_begin_pos -= 1] == ' '
  end
  node_begin_pos - Engine::ERUBY_STMT_SPLITTER.length + 1
end
end_pos() click to toggle source

End position of code to replace.

@return [Integer] end position.

# File lib/synvert/core/rewriter/action/replace_erb_stmt_with_expr_action.rb, line 24
def end_pos
  node_begin_pos = @node.loc.expression.begin_pos
  node_begin_pos += @node.loc.expression.source.index 'do'
  while @node.loc.expression.source_buffer.source[node_begin_pos += 1] != '@'
  end
  node_begin_pos
end
rewritten_code() click to toggle source

The rewritten erb expr code.

@return [String] rewritten code.

# File lib/synvert/core/rewriter/action/replace_erb_stmt_with_expr_action.rb, line 35
def rewritten_code
  @node.loc.expression.source_buffer.source[begin_pos...end_pos]
    .sub(Engine::ERUBY_STMT_SPLITTER, '@output_buffer.append= ')
    .sub(Engine::ERUBY_STMT_SPLITTER, Engine::ERUBY_EXPR_SPLITTER)
end