Add Error member to yyLexer type (yyError
has no access to yylex)
R=ken2, ken3
CC=golang-dev
https://golang.org/cl/813047
diff --git a/src/cmd/goyacc/doc.go b/src/cmd/goyacc/doc.go
index eea70ad..686f757 100644
--- a/src/cmd/goyacc/doc.go
+++ b/src/cmd/goyacc/doc.go
@@ -24,10 +24,12 @@
type yyLexer interface {
Lex(lval *yySymType) int
+ Error(e string)
}
Lex should return the token identifier, and place other token
information in lval (which replaces the usual yylval).
+Error is equivalent to yyerror in the original yacc.
Code inside the parser may refer to the variable yylex
which holds the yyLexer passed to Parse.
