blob: ca84cf08a5b705857162da02cfd25d3599be9b42 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
package grammar
type SemanticError struct {
message string
}
func newSemanticError(message string) *SemanticError {
return &SemanticError{
message: message,
}
}
func (e *SemanticError) Error() string {
return e.message
}
var (
semErrNoProduction = newSemanticError("a grammar needs at least one production")
semErrUndefinedSym = newSemanticError("undefined symbol")
semErrDuplicateProduction = newSemanticError("duplicate production")
semErrDuplicateSym = newSemanticError("duplicate symbol")
semErrDirInvalidName = newSemanticError("invalid directive name")
semErrDirInvalidParam = newSemanticError("invalid parameter")
)
|
