diff options
Diffstat (limited to 'src/cmd/compile/internal/syntax/source.go')
| -rw-r--r-- | src/cmd/compile/internal/syntax/source.go | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/cmd/compile/internal/syntax/source.go b/src/cmd/compile/internal/syntax/source.go index 78a1e81771..037742d73c 100644 --- a/src/cmd/compile/internal/syntax/source.go +++ b/src/cmd/compile/internal/syntax/source.go @@ -77,9 +77,13 @@ func (s *source) error(msg string) { } // getr reads and returns the next rune. -// If an error occurs, the error handler provided to init -// is called with position (line and column) information -// and error message before getr returns. +// +// If a read or source encoding error occurs, getr +// calls the error handler installed with init. +// The handler must exist. +// +// The (line, col) position passed to the error handler +// is always at the current source reading position. func (s *source) getr() rune { redo: s.r0, s.line0, s.col0 = s.r, s.line, s.col |