Class: RBlade::RailsTemplate

Inherits:
Object
  • Object
show all
Defined in:
lib/rblade/rails_template.rb

Instance Method Summary collapse

Instance Method Details

#call(template, source = nil) ⇒ Object 



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# File 'lib/rblade/rails_template.rb', line 15

def call(template, source = nil)
  component_store = RBlade::ComponentStore.new

  unless template.nil?
    view_name = template.short_identifier
      .delete_prefix("app/views/")
      .delete_suffix(".rblade")
      .delete_suffix(".html")
      .tr("/", ".")

    # Let the component store know about the current view for relative components
    component_store.view_name("view::#{view_name}")
  end

  preamble = +"_stacks=[];@_rblade_once_tokens=[];@_rblade_stack_manager=RBlade::StackManager.new;"
  if RBlade.direct_component_rendering
    # If the attributes and slot are already set, we don't need to assign them
    unless template&.locals&.include?("attributes") && template.locals.include?("slot")
      preamble << "attributes=RBlade::AttributesManager.new(local_assigns);slot||=yield if block_given?;slot=attributes.delete(:slot) if slot.blank?;"
    end
  end

  -"#{preamble}\n#{component_store.get}\n#{RBlade::Compiler.compile_string(source, component_store)}@output_buffer.raw_buffer.prepend(@_rblade_stack_manager.get(_stacks));@output_buffer;"
end

#translate_location(spot, backtrace_location, source) ⇒ Object 



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# File 'lib/rblade/rails_template.rb', line 40

def translate_location(spot, backtrace_location, source)
  view_name = backtrace_location.path
    .sub(/^.*app\/views\/(.+?)(?:\.\w++)?\.rblade$/, "\\1")
    .tr("/", ".")

  # Let the component store know about the current view for relative components
  component_store = RBlade::ComponentStore.new
  component_store.view_name("view::#{view_name}")

  source_map = RBlade::Compiler.generate_source_map(source, component_store)

  # Account for the preamble and component store
  offset = 2 + StringUtility.lines(component_store.get).length
  offset += 1 if spot[:script_lines]&.first == "# frozen_string_literal: true\n"

  location = source_map.source_location(spot[:first_lineno] - offset - 1, spot[:first_column])

  before_lines = StringUtility.lines(source[0...(location[:start_offset])])
  excerpt = source[(location[:start_offset])...(location[:end_offset])]
  excerpt_lines = StringUtility.lines(excerpt)

  first_lineno = before_lines.length
  first_column = before_lines.last.length

  last_lineno = first_lineno + excerpt_lines.length - 1
  last_column = (excerpt_lines.length > 1) ? excerpt_lines.last.length : first_column + excerpt_lines.first.length

  {
    first_lineno: first_lineno,
    first_column: first_column,
    last_lineno: last_lineno,
    last_column: last_column,
    snippet: excerpt,
    script_lines: source.lines,
  }
rescue => e
  Rails.logger&.debug "Unable to locate error position in template: #{e.message}"
  spot
end