Class: Rubex::AST::Statement::BeginBlock::Begin

Inherits:
Base show all
Defined in:
lib/rubex/ast/statement/begin_block/begin.rb

Instance Attribute Summary

Attributes inherited from Rubex::AST::Statement::Base

#location

Instance Method Summary collapse

Methods inherited from Rubex::AST::Statement::Base

#==, #statement?

Constructor Details

#initialize(statements, tails, location) ⇒ Begin

Returns a new instance of Begin.



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# File 'lib/rubex/ast/statement/begin_block/begin.rb', line 6

def initialize(statements, tails, location)
  @tails = tails
  super(statements, location)
end

Instance Method Details

#analyse_statement(local_scope) ⇒ Object 



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# File 'lib/rubex/ast/statement/begin_block/begin.rb', line 11

def analyse_statement(local_scope)
  local_scope.found_begin_block
  declare_error_state_variable local_scope
  declare_error_klass_variable local_scope
  declare_unhandled_error_variable local_scope
  @block_scope = Rubex::SymbolTable::Scope::BeginBlock.new(
    block_name(local_scope), local_scope
  )
  create_c_function_to_house_statements local_scope.outer_scope
  analyse_tails local_scope
end

#generate_code(code, local_scope) ⇒ Object 



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# File 'lib/rubex/ast/statement/begin_block/begin.rb', line 23

def generate_code(code, local_scope)
  code.nl
  code << '/* begin-rescue-else-ensure-end block begins: */'
  code.nl
  super
  cb_c_name = local_scope.find(@begin_func.name).c_name
  state_var = local_scope.find(@state_var_name).c_name
  code << "#{state_var} = 0;\n"
  code << "rb_protect(#{cb_c_name}, Qnil, &#{state_var});"
  code.nl
  generate_rescue_else_ensure code, local_scope
end