Class: PgVerify::Model::SourceLocation

Inherits:
Object
  • Object
show all
Defined in:
lib/pg-verify/model/source_location.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file, line_number) ⇒ SourceLocation

Returns a new instance of SourceLocation.



9
10
11
 
# File 'lib/pg-verify/model/source_location.rb', line 9

def initialize(file, line_number)
    @file, @line_number = file, line_number
end

Instance Attribute Details

#file ⇒ Object

Returns the value of attribute file.



6
7
8
 
# File 'lib/pg-verify/model/source_location.rb', line 6

def file
  @file
end

#line_number ⇒ Object

Returns the value of attribute line_number.



7
8
9
 
# File 'lib/pg-verify/model/source_location.rb', line 7

def line_number
  @line_number
end

Instance Method Details

#render_code_block(num_lines = 2) ⇒ Object 



13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
 
# File 'lib/pg-verify/model/source_location.rb', line 13

def render_code_block(num_lines = 2)
    index = @line_number - 1
    # Read lines and add line numbers
    lines = File.read(@file).split("\n").each_with_index.map { |l, i| "#{i.to_s.c_blue}: #{l}" }

    # Get the line surrounding the error
    start_index = [0, index - num_lines].max
    end_index = [lines.length - 1, index + num_lines].min
    surrounding_lines = lines[start_index..end_index]
    error_line = lines[index]

    surrounding_lines = [ "...".c_sidenote ] + surrounding_lines + [ "...".c_sidenote ]

    surrounding_lines = surrounding_lines.map { |l|
        if l == error_line
            l.ljust(surrounding_lines.map(&:length).max) + " < Error".c_error
        else
            l
        end
    }

    return surrounding_lines.join("\n")
end

#to_s ⇒ Object 



37
38
39
 
# File 'lib/pg-verify/model/source_location.rb', line 37

def to_s()
    "#{@file}:#{@line_number}"
end