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38 lines
733 B
38 lines
733 B
package expr
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import (
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`fmt`
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)
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// SyntaxError represents a syntax error in the expression.
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type SyntaxError struct {
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Pos int
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Reason string
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}
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func newSyntaxError(pos int, reason string) *SyntaxError {
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return &SyntaxError {
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Pos : pos,
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Reason : reason,
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}
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}
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func (self *SyntaxError) Error() string {
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return fmt.Sprintf("Syntax error at position %d: %s", self.Pos, self.Reason)
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}
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// RuntimeError is an error which would occure at run time.
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type RuntimeError struct {
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Reason string
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}
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func newRuntimeError(reason string) *RuntimeError {
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return &RuntimeError {
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Reason: reason,
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}
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}
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func (self *RuntimeError) Error() string {
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return "Runtime error: " + self.Reason
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}
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