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27 lines
607 B
Go
27 lines
607 B
Go
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package lexer
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import "fmt"
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// Error represents an error while parsing.
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type Error struct {
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Message string
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Pos Position
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}
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// Errorf creats a new Error at the given position.
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func Errorf(pos Position, format string, args ...interface{}) *Error {
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return &Error{
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Message: fmt.Sprintf(format, args...),
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Pos: pos,
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}
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}
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// Error complies with the error interface and reports the position of an error.
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func (e *Error) Error() string {
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filename := e.Pos.Filename
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if filename == "" {
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filename = "<source>"
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}
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return fmt.Sprintf("%s:%d:%d: %s", filename, e.Pos.Line, e.Pos.Column, e.Message)
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}
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