prometheus/promql/generated_parser.y.go

755 lines
15 KiB
Go

// Code generated by goyacc -o promql/generated_parser.y.go promql/generated_parser.y. DO NOT EDIT.
//line promql/generated_parser.y:15
package promql
import __yyfmt__ "fmt"
//line promql/generated_parser.y:15
import (
"github.com/prometheus/prometheus/pkg/labels"
)
//line promql/generated_parser.y:22
type yySymType struct {
yys int
node Node
item Item
matchers []*labels.Matcher
matcher *labels.Matcher
labelSet []labels.Label
label labels.Label
labels labels.Labels
}
const ERROR = 57346
const EOF = 57347
const COMMENT = 57348
const IDENTIFIER = 57349
const METRIC_IDENTIFIER = 57350
const LEFT_PAREN = 57351
const RIGHT_PAREN = 57352
const LEFT_BRACE = 57353
const RIGHT_BRACE = 57354
const LEFT_BRACKET = 57355
const RIGHT_BRACKET = 57356
const COMMA = 57357
const ASSIGN = 57358
const COLON = 57359
const SEMICOLON = 57360
const STRING = 57361
const NUMBER = 57362
const DURATION = 57363
const BLANK = 57364
const TIMES = 57365
const SPACE = 57366
const operatorsStart = 57367
const SUB = 57368
const ADD = 57369
const MUL = 57370
const MOD = 57371
const DIV = 57372
const LAND = 57373
const LOR = 57374
const LUNLESS = 57375
const EQL = 57376
const NEQ = 57377
const LTE = 57378
const LSS = 57379
const GTE = 57380
const GTR = 57381
const EQL_REGEX = 57382
const NEQ_REGEX = 57383
const POW = 57384
const operatorsEnd = 57385
const aggregatorsStart = 57386
const AVG = 57387
const COUNT = 57388
const SUM = 57389
const MIN = 57390
const MAX = 57391
const STDDEV = 57392
const STDVAR = 57393
const TOPK = 57394
const BOTTOMK = 57395
const COUNT_VALUES = 57396
const QUANTILE = 57397
const aggregatorsEnd = 57398
const keywordsStart = 57399
const OFFSET = 57400
const BY = 57401
const WITHOUT = 57402
const ON = 57403
const IGNORING = 57404
const GROUP_LEFT = 57405
const GROUP_RIGHT = 57406
const BOOL = 57407
const keywordsEnd = 57408
const startSymbolsStart = 57409
const START_LABELS = 57410
const START_LABEL_SET = 57411
const startSymbolsEnd = 57412
var yyToknames = [...]string{
"$end",
"error",
"$unk",
"ERROR",
"EOF",
"COMMENT",
"IDENTIFIER",
"METRIC_IDENTIFIER",
"LEFT_PAREN",
"RIGHT_PAREN",
"LEFT_BRACE",
"RIGHT_BRACE",
"LEFT_BRACKET",
"RIGHT_BRACKET",
"COMMA",
"ASSIGN",
"COLON",
"SEMICOLON",
"STRING",
"NUMBER",
"DURATION",
"BLANK",
"TIMES",
"SPACE",
"operatorsStart",
"SUB",
"ADD",
"MUL",
"MOD",
"DIV",
"LAND",
"LOR",
"LUNLESS",
"EQL",
"NEQ",
"LTE",
"LSS",
"GTE",
"GTR",
"EQL_REGEX",
"NEQ_REGEX",
"POW",
"operatorsEnd",
"aggregatorsStart",
"AVG",
"COUNT",
"SUM",
"MIN",
"MAX",
"STDDEV",
"STDVAR",
"TOPK",
"BOTTOMK",
"COUNT_VALUES",
"QUANTILE",
"aggregatorsEnd",
"keywordsStart",
"OFFSET",
"BY",
"WITHOUT",
"ON",
"IGNORING",
"GROUP_LEFT",
"GROUP_RIGHT",
"BOOL",
"keywordsEnd",
"startSymbolsStart",
"START_LABELS",
"START_LABEL_SET",
"startSymbolsEnd",
}
var yyStatenames = [...]string{}
const yyEofCode = 1
const yyErrCode = 2
const yyInitialStackSize = 16
//line promql/generated_parser.y:203
//line yacctab:1
var yyExca = [...]int{
-1, 1,
1, -1,
-2, 0,
}
const yyPrivate = 57344
const yyLast = 68
var yyAct = [...]int{
4, 23, 16, 32, 11, 40, 36, 30, 21, 18,
1, 8, 14, 6, 17, 7, 22, 28, 19, 37,
29, 20, 39, 35, 9, 34, 13, 5, 0, 0,
0, 12, 38, 24, 25, 31, 33, 18, 13, 26,
27, 0, 17, 12, 0, 0, 0, 15, 10, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 2, 3,
}
var yyPact = [...]int{
-2, -1000, 2, 0, -1000, -1000, 36, -1000, 35, 6,
-1000, -1000, -1, -1000, 5, -1000, -1000, 1, -1000, -1000,
24, -1000, 4, -1000, -1000, -1000, -1000, -1000, -1000, 7,
-1000, 3, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-1000,
}
var yyPgo = [...]int{
0, 27, 24, 4, 16, 15, 12, 2, 10,
}
var yyR1 = [...]int{
0, 8, 8, 8, 1, 1, 1, 2, 2, 2,
3, 3, 3, 3, 4, 4, 4, 4, 5, 5,
5, 6, 6, 6, 7, 7, 7, 7,
}
var yyR2 = [...]int{
0, 2, 2, 1, 3, 4, 2, 3, 1, 2,
3, 3, 2, 1, 1, 1, 1, 1, 3, 4,
2, 3, 1, 2, 3, 3, 2, 1,
}
var yyChk = [...]int{
-1000, -8, 68, 69, 2, -1, 11, -5, 11, -2,
12, -3, 7, 2, -6, 12, -7, 7, 2, 12,
15, 2, -4, 2, 34, 35, 40, 41, 12, 15,
2, 34, 2, 12, -3, 19, 2, 12, -7, 19,
2,
}
var yyDef = [...]int{
0, -2, 0, 0, 3, 1, 0, 2, 0, 0,
6, 8, 0, 13, 0, 20, 22, 0, 27, 4,
0, 9, 0, 12, 14, 15, 16, 17, 18, 0,
23, 0, 26, 5, 7, 10, 11, 19, 21, 24,
25,
}
var yyTok1 = [...]int{
1,
}
var yyTok2 = [...]int{
2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
62, 63, 64, 65, 66, 67, 68, 69, 70,
}
var yyTok3 = [...]int{
0,
}
var yyErrorMessages = [...]struct {
state int
token int
msg string
}{}
//line yaccpar:1
/* parser for yacc output */
var (
yyDebug = 0
yyErrorVerbose = false
)
type yyLexer interface {
Lex(lval *yySymType) int
Error(s string)
}
type yyParser interface {
Parse(yyLexer) int
Lookahead() int
}
type yyParserImpl struct {
lval yySymType
stack [yyInitialStackSize]yySymType
char int
}
func (p *yyParserImpl) Lookahead() int {
return p.char
}
func yyNewParser() yyParser {
return &yyParserImpl{}
}
const yyFlag = -1000
func yyTokname(c int) string {
if c >= 1 && c-1 < len(yyToknames) {
if yyToknames[c-1] != "" {
return yyToknames[c-1]
}
}
return __yyfmt__.Sprintf("tok-%v", c)
}
func yyStatname(s int) string {
if s >= 0 && s < len(yyStatenames) {
if yyStatenames[s] != "" {
return yyStatenames[s]
}
}
return __yyfmt__.Sprintf("state-%v", s)
}
func yyErrorMessage(state, lookAhead int) string {
const TOKSTART = 4
if !yyErrorVerbose {
return "syntax error"
}
for _, e := range yyErrorMessages {
if e.state == state && e.token == lookAhead {
return "syntax error: " + e.msg
}
}
res := "syntax error: unexpected " + yyTokname(lookAhead)
// To match Bison, suggest at most four expected tokens.
expected := make([]int, 0, 4)
// Look for shiftable tokens.
base := yyPact[state]
for tok := TOKSTART; tok-1 < len(yyToknames); tok++ {
if n := base + tok; n >= 0 && n < yyLast && yyChk[yyAct[n]] == tok {
if len(expected) == cap(expected) {
return res
}
expected = append(expected, tok)
}
}
if yyDef[state] == -2 {
i := 0
for yyExca[i] != -1 || yyExca[i+1] != state {
i += 2
}
// Look for tokens that we accept or reduce.
for i += 2; yyExca[i] >= 0; i += 2 {
tok := yyExca[i]
if tok < TOKSTART || yyExca[i+1] == 0 {
continue
}
if len(expected) == cap(expected) {
return res
}
expected = append(expected, tok)
}
// If the default action is to accept or reduce, give up.
if yyExca[i+1] != 0 {
return res
}
}
for i, tok := range expected {
if i == 0 {
res += ", expecting "
} else {
res += " or "
}
res += yyTokname(tok)
}
return res
}
func yylex1(lex yyLexer, lval *yySymType) (char, token int) {
token = 0
char = lex.Lex(lval)
if char <= 0 {
token = yyTok1[0]
goto out
}
if char < len(yyTok1) {
token = yyTok1[char]
goto out
}
if char >= yyPrivate {
if char < yyPrivate+len(yyTok2) {
token = yyTok2[char-yyPrivate]
goto out
}
}
for i := 0; i < len(yyTok3); i += 2 {
token = yyTok3[i+0]
if token == char {
token = yyTok3[i+1]
goto out
}
}
out:
if token == 0 {
token = yyTok2[1] /* unknown char */
}
if yyDebug >= 3 {
__yyfmt__.Printf("lex %s(%d)\n", yyTokname(token), uint(char))
}
return char, token
}
func yyParse(yylex yyLexer) int {
return yyNewParser().Parse(yylex)
}
func (yyrcvr *yyParserImpl) Parse(yylex yyLexer) int {
var yyn int
var yyVAL yySymType
var yyDollar []yySymType
_ = yyDollar // silence set and not used
yyS := yyrcvr.stack[:]
Nerrs := 0 /* number of errors */
Errflag := 0 /* error recovery flag */
yystate := 0
yyrcvr.char = -1
yytoken := -1 // yyrcvr.char translated into internal numbering
defer func() {
// Make sure we report no lookahead when not parsing.
yystate = -1
yyrcvr.char = -1
yytoken = -1
}()
yyp := -1
goto yystack
ret0:
return 0
ret1:
return 1
yystack:
/* put a state and value onto the stack */
if yyDebug >= 4 {
__yyfmt__.Printf("char %v in %v\n", yyTokname(yytoken), yyStatname(yystate))
}
yyp++
if yyp >= len(yyS) {
nyys := make([]yySymType, len(yyS)*2)
copy(nyys, yyS)
yyS = nyys
}
yyS[yyp] = yyVAL
yyS[yyp].yys = yystate
yynewstate:
yyn = yyPact[yystate]
if yyn <= yyFlag {
goto yydefault /* simple state */
}
if yyrcvr.char < 0 {
yyrcvr.char, yytoken = yylex1(yylex, &yyrcvr.lval)
}
yyn += yytoken
if yyn < 0 || yyn >= yyLast {
goto yydefault
}
yyn = yyAct[yyn]
if yyChk[yyn] == yytoken { /* valid shift */
yyrcvr.char = -1
yytoken = -1
yyVAL = yyrcvr.lval
yystate = yyn
if Errflag > 0 {
Errflag--
}
goto yystack
}
yydefault:
/* default state action */
yyn = yyDef[yystate]
if yyn == -2 {
if yyrcvr.char < 0 {
yyrcvr.char, yytoken = yylex1(yylex, &yyrcvr.lval)
}
/* look through exception table */
xi := 0
for {
if yyExca[xi+0] == -1 && yyExca[xi+1] == yystate {
break
}
xi += 2
}
for xi += 2; ; xi += 2 {
yyn = yyExca[xi+0]
if yyn < 0 || yyn == yytoken {
break
}
}
yyn = yyExca[xi+1]
if yyn < 0 {
goto ret0
}
}
if yyn == 0 {
/* error ... attempt to resume parsing */
switch Errflag {
case 0: /* brand new error */
yylex.Error(yyErrorMessage(yystate, yytoken))
Nerrs++
if yyDebug >= 1 {
__yyfmt__.Printf("%s", yyStatname(yystate))
__yyfmt__.Printf(" saw %s\n", yyTokname(yytoken))
}
fallthrough
case 1, 2: /* incompletely recovered error ... try again */
Errflag = 3
/* find a state where "error" is a legal shift action */
for yyp >= 0 {
yyn = yyPact[yyS[yyp].yys] + yyErrCode
if yyn >= 0 && yyn < yyLast {
yystate = yyAct[yyn] /* simulate a shift of "error" */
if yyChk[yystate] == yyErrCode {
goto yystack
}
}
/* the current p has no shift on "error", pop stack */
if yyDebug >= 2 {
__yyfmt__.Printf("error recovery pops state %d\n", yyS[yyp].yys)
}
yyp--
}
/* there is no state on the stack with an error shift ... abort */
goto ret1
case 3: /* no shift yet; clobber input char */
if yyDebug >= 2 {
__yyfmt__.Printf("error recovery discards %s\n", yyTokname(yytoken))
}
if yytoken == yyEofCode {
goto ret1
}
yyrcvr.char = -1
yytoken = -1
goto yynewstate /* try again in the same state */
}
}
/* reduction by production yyn */
if yyDebug >= 2 {
__yyfmt__.Printf("reduce %v in:\n\t%v\n", yyn, yyStatname(yystate))
}
yynt := yyn
yypt := yyp
_ = yypt // guard against "declared and not used"
yyp -= yyR2[yyn]
// yyp is now the index of $0. Perform the default action. Iff the
// reduced production is ε, $1 is possibly out of range.
if yyp+1 >= len(yyS) {
nyys := make([]yySymType, len(yyS)*2)
copy(nyys, yyS)
yyS = nyys
}
yyVAL = yyS[yyp+1]
/* consult goto table to find next state */
yyn = yyR1[yyn]
yyg := yyPgo[yyn]
yyj := yyg + yyS[yyp].yys + 1
if yyj >= yyLast {
yystate = yyAct[yyg]
} else {
yystate = yyAct[yyj]
if yyChk[yystate] != -yyn {
yystate = yyAct[yyg]
}
}
// dummy call; replaced with literal code
switch yynt {
case 1:
yyDollar = yyS[yypt-2 : yypt+1]
//line promql/generated_parser.y:125
{
yylex.(*parser).generatedParserResult.(*VectorSelector).LabelMatchers = yyDollar[2].matchers
}
case 2:
yyDollar = yyS[yypt-2 : yypt+1]
//line promql/generated_parser.y:127
{
yylex.(*parser).generatedParserResult = yyDollar[2].labels
}
case 3:
yyDollar = yyS[yypt-1 : yypt+1]
//line promql/generated_parser.y:129
{
yylex.(*parser).errorf("unexpected %v", yylex.(*parser).token.desc())
}
case 4:
yyDollar = yyS[yypt-3 : yypt+1]
//line promql/generated_parser.y:135
{
yyVAL.matchers = yyDollar[2].matchers
}
case 5:
yyDollar = yyS[yypt-4 : yypt+1]
//line promql/generated_parser.y:137
{
yyVAL.matchers = yyDollar[2].matchers
}
case 6:
yyDollar = yyS[yypt-2 : yypt+1]
//line promql/generated_parser.y:139
{
yyVAL.matchers = []*labels.Matcher{}
}
case 7:
yyDollar = yyS[yypt-3 : yypt+1]
//line promql/generated_parser.y:145
{
yyVAL.matchers = append(yyDollar[1].matchers, yyDollar[3].matcher)
}
case 8:
yyDollar = yyS[yypt-1 : yypt+1]
//line promql/generated_parser.y:147
{
yyVAL.matchers = []*labels.Matcher{yyDollar[1].matcher}
}
case 9:
yyDollar = yyS[yypt-2 : yypt+1]
//line promql/generated_parser.y:149
{
yylex.(*parser).errorf("unexpected %v in label matching, expected \",\" or \"}\"", yylex.(*parser).token.desc())
}
case 10:
yyDollar = yyS[yypt-3 : yypt+1]
//line promql/generated_parser.y:154
{
yyVAL.matcher = yylex.(*parser).newLabelMatcher(yyDollar[1].item, yyDollar[2].item, yyDollar[3].item)
}
case 11:
yyDollar = yyS[yypt-3 : yypt+1]
//line promql/generated_parser.y:156
{
yylex.(*parser).errorf("unexpected %v in label matching, expected string", yylex.(*parser).token.desc())
}
case 12:
yyDollar = yyS[yypt-2 : yypt+1]
//line promql/generated_parser.y:158
{
yylex.(*parser).errorf("unexpected %v in label matching, expected label matching operator", yylex.(*parser).token.Val)
}
case 13:
yyDollar = yyS[yypt-1 : yypt+1]
//line promql/generated_parser.y:160
{
yylex.(*parser).errorf("unexpected %v in label matching, expected identifier or \"}\"", yylex.(*parser).token.desc())
}
case 14:
yyDollar = yyS[yypt-1 : yypt+1]
//line promql/generated_parser.y:164
{
yyVAL.item = yyDollar[1].item
}
case 15:
yyDollar = yyS[yypt-1 : yypt+1]
//line promql/generated_parser.y:165
{
yyVAL.item = yyDollar[1].item
}
case 16:
yyDollar = yyS[yypt-1 : yypt+1]
//line promql/generated_parser.y:166
{
yyVAL.item = yyDollar[1].item
}
case 17:
yyDollar = yyS[yypt-1 : yypt+1]
//line promql/generated_parser.y:167
{
yyVAL.item = yyDollar[1].item
}
case 18:
yyDollar = yyS[yypt-3 : yypt+1]
//line promql/generated_parser.y:172
{
yyVAL.labels = labels.New(yyDollar[2].labelSet...)
}
case 19:
yyDollar = yyS[yypt-4 : yypt+1]
//line promql/generated_parser.y:174
{
yyVAL.labels = labels.New(yyDollar[2].labelSet...)
}
case 20:
yyDollar = yyS[yypt-2 : yypt+1]
//line promql/generated_parser.y:176
{
yyVAL.labels = labels.New()
}
case 21:
yyDollar = yyS[yypt-3 : yypt+1]
//line promql/generated_parser.y:181
{
yyVAL.labelSet = append(yyDollar[1].labelSet, yyDollar[3].label)
}
case 22:
yyDollar = yyS[yypt-1 : yypt+1]
//line promql/generated_parser.y:183
{
yyVAL.labelSet = []labels.Label{yyDollar[1].label}
}
case 23:
yyDollar = yyS[yypt-2 : yypt+1]
//line promql/generated_parser.y:185
{
yylex.(*parser).errorf("unexpected %v in label set, expected \",\" or \"}\"", yylex.(*parser).token.desc())
}
case 24:
yyDollar = yyS[yypt-3 : yypt+1]
//line promql/generated_parser.y:191
{
yyVAL.label = labels.Label{Name: yyDollar[1].item.Val, Value: yylex.(*parser).unquoteString(yyDollar[3].item.Val)}
}
case 25:
yyDollar = yyS[yypt-3 : yypt+1]
//line promql/generated_parser.y:193
{
yylex.(*parser).errorf("unexpected %v in label set, expected string", yylex.(*parser).token.desc())
}
case 26:
yyDollar = yyS[yypt-2 : yypt+1]
//line promql/generated_parser.y:195
{
yylex.(*parser).errorf("unexpected %v in label set, expected \"=\"", yylex.(*parser).token.desc())
}
case 27:
yyDollar = yyS[yypt-1 : yypt+1]
//line promql/generated_parser.y:197
{
yylex.(*parser).errorf("unexpected %v in label set, expected identifier or \"}\"", yylex.(*parser).token.desc())
}
}
goto yystack /* stack new state and value */
}