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Add ECR::Lexer::SyntaxException with location info #15222

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merged 3 commits into from
Dec 17, 2024
Merged

Add ECR::Lexer::SyntaxException with location info #15222

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6b7bbf3
ECR syntax error raises exception that includes line/column information
nobodywasishere Nov 24, 2024
8d22077
Use `raise` instance method for providing line and column number when…
nobodywasishere Dec 4, 2024
65ba4b5
Revert unrelated stylistic change
straight-shoota Dec 16, 2024
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13 changes: 13 additions & 0 deletions src/ecr/lexer.cr
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,15 @@ class ECR::Lexer
end
end

class SyntaxException < Exception
getter line_number : Int32
getter column_number : Int32

def initialize(message, @line_number, @column_number)
super(message)
end
end

def initialize(string)
@reader = Char::Reader.new(string)
@token = Token.new
Expand Down Expand Up @@ -198,4 +207,8 @@ class ECR::Lexer
private def string_range(start_pos, end_pos)
@reader.string.byte_slice(start_pos, end_pos - start_pos)
end

private def raise(message : String)
raise SyntaxException.new(message, @line_number, @column_number)
end
end
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