Method Parse

pkg/sql/plpgsql/parser/plpgsql.go:1088–2592

(plpgsqllex plpgsqlLexer)

}

func (plpgsqlrcvr *plpgsqlParserImpl) Parse(plpgsqllex plpgsqlLexer) int {
	var plpgsqln int
	var plpgsqlVAL plpgsqlSymType
	var plpgsqlDollar []plpgsqlSymType
	_ = plpgsqlDollar // silence set and not used
	plpgsqlS := plpgsqlrcvr.stack[:]

	Nerrs := 0   /* number of errors */
	Errflag := 0 /* error recovery flag */
	plpgsqlstate := 0
	plpgsqlrcvr.char = -1
	plpgsqltoken := -1 // plpgsqlrcvr.char translated into internal numbering
	defer func() {
		// Make sure we report no lookahead when not parsing.
		plpgsqlstate = -1
		plpgsqlrcvr.char = -1
		plpgsqltoken = -1
	}()
	plpgsqlp := -1
	goto plpgsqlstack

ret0:
	return 0

ret1:
	return 1

plpgsqlstack:
	/* put a state and value onto the stack */
	if plpgsqlDebug >= 4 {
		__yyfmt__.Printf("char %v in %v\n", plpgsqlTokname(plpgsqltoken), plpgsqlStatname(plpgsqlstate))
	}

	plpgsqlp++
	if plpgsqlp >= len(plpgsqlS) {
		nyys := make([]plpgsqlSymType, len(plpgsqlS)*2)
		copy(nyys, plpgsqlS)
		plpgsqlS = nyys
	}
	plpgsqlS[plpgsqlp] = plpgsqlVAL
	plpgsqlS[plpgsqlp].yys = plpgsqlstate

plpgsqlnewstate:
	plpgsqln = int(plpgsqlPact[plpgsqlstate])
	if plpgsqln <= plpgsqlFlag {
		goto plpgsqldefault /* simple state */
	}
	if plpgsqlrcvr.char < 0 {
		plpgsqlrcvr.char, plpgsqltoken = plpgsqllex1(plpgsqllex, &plpgsqlrcvr.lval)
	}
	plpgsqln += plpgsqltoken
	if plpgsqln < 0 || plpgsqln >= plpgsqlLast {
		goto plpgsqldefault
	}
	plpgsqln = int(plpgsqlAct[plpgsqln])
	if int(plpgsqlChk[plpgsqln]) == plpgsqltoken { /* valid shift */
		plpgsqlrcvr.char = -1
		plpgsqltoken = -1