2019-12-05 16:16:12 +00:00
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// Code generated by goyacc -o promql/generated_parser.y.go promql/generated_parser.y. DO NOT EDIT.
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//line promql/generated_parser.y:15
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package promql
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import __yyfmt__ "fmt"
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//line promql/generated_parser.y:15
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import (
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"github.com/prometheus/prometheus/pkg/labels"
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)
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//line promql/generated_parser.y:22
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type yySymType struct {
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yys int
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node Node
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2019-12-09 19:03:31 +00:00
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item Item
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2019-12-05 16:16:12 +00:00
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matchers []*labels.Matcher
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matcher *labels.Matcher
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}
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const ERROR = 57346
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const EOF = 57347
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const COMMENT = 57348
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const IDENTIFIER = 57349
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const METRIC_IDENTIFIER = 57350
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const LEFT_PAREN = 57351
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const RIGHT_PAREN = 57352
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const LEFT_BRACE = 57353
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const RIGHT_BRACE = 57354
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const LEFT_BRACKET = 57355
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const RIGHT_BRACKET = 57356
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const COMMA = 57357
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const ASSIGN = 57358
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const COLON = 57359
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const SEMICOLON = 57360
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const STRING = 57361
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const NUMBER = 57362
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const DURATION = 57363
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const BLANK = 57364
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const TIMES = 57365
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const SPACE = 57366
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const operatorsStart = 57367
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const SUB = 57368
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const ADD = 57369
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const MUL = 57370
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const MOD = 57371
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const DIV = 57372
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const LAND = 57373
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const LOR = 57374
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const LUNLESS = 57375
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const EQL = 57376
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const NEQ = 57377
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const LTE = 57378
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const LSS = 57379
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const GTE = 57380
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const GTR = 57381
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const EQL_REGEX = 57382
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const NEQ_REGEX = 57383
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const POW = 57384
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const operatorsEnd = 57385
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const aggregatorsStart = 57386
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const AVG = 57387
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const COUNT = 57388
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const SUM = 57389
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const MIN = 57390
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const MAX = 57391
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const STDDEV = 57392
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const STDVAR = 57393
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const TOPK = 57394
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const BOTTOMK = 57395
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const COUNT_VALUES = 57396
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const QUANTILE = 57397
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const aggregatorsEnd = 57398
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const keywordsStart = 57399
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const OFFSET = 57400
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const BY = 57401
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const WITHOUT = 57402
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const ON = 57403
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const IGNORING = 57404
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const GROUP_LEFT = 57405
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const GROUP_RIGHT = 57406
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const BOOL = 57407
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const keywordsEnd = 57408
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const startSymbolsStart = 57409
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const START_LABELS = 57410
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const startSymbolsEnd = 57411
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var yyToknames = [...]string{
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"$end",
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"error",
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"$unk",
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"ERROR",
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"EOF",
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"COMMENT",
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"IDENTIFIER",
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"METRIC_IDENTIFIER",
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"LEFT_PAREN",
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"RIGHT_PAREN",
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"LEFT_BRACE",
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"RIGHT_BRACE",
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"LEFT_BRACKET",
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"RIGHT_BRACKET",
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"COMMA",
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"ASSIGN",
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"COLON",
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"SEMICOLON",
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"STRING",
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"NUMBER",
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"DURATION",
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"BLANK",
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"TIMES",
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"SPACE",
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"operatorsStart",
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"SUB",
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"ADD",
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"MUL",
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"MOD",
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"DIV",
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"LAND",
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"LOR",
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"LUNLESS",
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"EQL",
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"NEQ",
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"LTE",
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"LSS",
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"GTE",
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"GTR",
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"EQL_REGEX",
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"NEQ_REGEX",
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"POW",
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"operatorsEnd",
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"aggregatorsStart",
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"AVG",
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"COUNT",
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"SUM",
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"MIN",
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"MAX",
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"STDDEV",
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"STDVAR",
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"TOPK",
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"BOTTOMK",
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"COUNT_VALUES",
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"QUANTILE",
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"aggregatorsEnd",
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"keywordsStart",
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"OFFSET",
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"BY",
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"WITHOUT",
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"ON",
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"IGNORING",
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"GROUP_LEFT",
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"GROUP_RIGHT",
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"BOOL",
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"keywordsEnd",
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"startSymbolsStart",
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"START_LABELS",
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"startSymbolsEnd",
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}
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var yyStatenames = [...]string{}
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const yyEofCode = 1
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const yyErrCode = 2
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const yyInitialStackSize = 16
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//line promql/generated_parser.y:155
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//line yacctab:1
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var yyExca = [...]int{
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-1, 1,
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1, -1,
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-2, 0,
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}
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const yyPrivate = 57344
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const yyLast = 67
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var yyAct = [...]int{
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3, 17, 20, 11, 9, 5, 10, 8, 9, 7,
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1, 12, 6, 4, 0, 0, 0, 0, 18, 19,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 13, 14, 0, 0, 0, 0, 15,
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16, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 2,
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}
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var yyPact = [...]int{
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-2, -1000, -6, -1000, -1000, -3, -9, -1000, -1000, -1,
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1, -1000, 0, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
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-1000,
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}
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var yyPgo = [...]int{
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0, 13, 12, 7, 11, 10,
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}
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var yyR1 = [...]int{
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0, 5, 5, 2, 2, 1, 1, 3, 3, 4,
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4, 4, 4, 4,
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}
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var yyR2 = [...]int{
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0, 2, 1, 3, 1, 3, 2, 3, 3, 1,
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1, 1, 1, 1,
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}
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var yyChk = [...]int{
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-1000, -5, 68, 2, -1, 11, -2, 12, -3, 7,
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15, 12, -4, 34, 35, 40, 41, 2, -3, 19,
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2,
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}
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var yyDef = [...]int{
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0, -2, 0, 2, 1, 0, 0, 6, 4, 0,
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0, 5, 0, 9, 10, 11, 12, 13, 3, 7,
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8,
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}
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var yyTok1 = [...]int{
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1,
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}
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var yyTok2 = [...]int{
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2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
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12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
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22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
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42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
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62, 63, 64, 65, 66, 67, 68, 69,
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}
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var yyTok3 = [...]int{
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0,
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}
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var yyErrorMessages = [...]struct {
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state int
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token int
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msg string
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}{}
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//line yaccpar:1
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/* parser for yacc output */
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var (
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yyDebug = 0
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yyErrorVerbose = false
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)
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type yyLexer interface {
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Lex(lval *yySymType) int
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Error(s string)
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}
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type yyParser interface {
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Parse(yyLexer) int
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Lookahead() int
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}
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type yyParserImpl struct {
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lval yySymType
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stack [yyInitialStackSize]yySymType
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char int
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}
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func (p *yyParserImpl) Lookahead() int {
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return p.char
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}
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func yyNewParser() yyParser {
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return &yyParserImpl{}
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}
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const yyFlag = -1000
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func yyTokname(c int) string {
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if c >= 1 && c-1 < len(yyToknames) {
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if yyToknames[c-1] != "" {
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return yyToknames[c-1]
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}
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}
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return __yyfmt__.Sprintf("tok-%v", c)
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}
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func yyStatname(s int) string {
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if s >= 0 && s < len(yyStatenames) {
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if yyStatenames[s] != "" {
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return yyStatenames[s]
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}
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}
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return __yyfmt__.Sprintf("state-%v", s)
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}
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func yyErrorMessage(state, lookAhead int) string {
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const TOKSTART = 4
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if !yyErrorVerbose {
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return "syntax error"
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}
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for _, e := range yyErrorMessages {
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if e.state == state && e.token == lookAhead {
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return "syntax error: " + e.msg
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}
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}
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res := "syntax error: unexpected " + yyTokname(lookAhead)
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// To match Bison, suggest at most four expected tokens.
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expected := make([]int, 0, 4)
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// Look for shiftable tokens.
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base := yyPact[state]
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for tok := TOKSTART; tok-1 < len(yyToknames); tok++ {
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if n := base + tok; n >= 0 && n < yyLast && yyChk[yyAct[n]] == tok {
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if len(expected) == cap(expected) {
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return res
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}
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expected = append(expected, tok)
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}
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}
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if yyDef[state] == -2 {
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i := 0
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for yyExca[i] != -1 || yyExca[i+1] != state {
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i += 2
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}
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// Look for tokens that we accept or reduce.
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for i += 2; yyExca[i] >= 0; i += 2 {
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tok := yyExca[i]
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if tok < TOKSTART || yyExca[i+1] == 0 {
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continue
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}
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if len(expected) == cap(expected) {
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return res
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}
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expected = append(expected, tok)
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}
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// If the default action is to accept or reduce, give up.
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if yyExca[i+1] != 0 {
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return res
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}
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}
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for i, tok := range expected {
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if i == 0 {
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res += ", expecting "
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} else {
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res += " or "
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}
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res += yyTokname(tok)
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}
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return res
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}
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func yylex1(lex yyLexer, lval *yySymType) (char, token int) {
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token = 0
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char = lex.Lex(lval)
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if char <= 0 {
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token = yyTok1[0]
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goto out
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}
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if char < len(yyTok1) {
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token = yyTok1[char]
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goto out
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}
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if char >= yyPrivate {
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if char < yyPrivate+len(yyTok2) {
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token = yyTok2[char-yyPrivate]
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goto out
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}
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}
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for i := 0; i < len(yyTok3); i += 2 {
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token = yyTok3[i+0]
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if token == char {
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token = yyTok3[i+1]
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goto out
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}
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}
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out:
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if token == 0 {
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token = yyTok2[1] /* unknown char */
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}
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if yyDebug >= 3 {
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__yyfmt__.Printf("lex %s(%d)\n", yyTokname(token), uint(char))
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}
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return char, token
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}
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func yyParse(yylex yyLexer) int {
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return yyNewParser().Parse(yylex)
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}
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func (yyrcvr *yyParserImpl) Parse(yylex yyLexer) int {
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var yyn int
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var yyVAL yySymType
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var yyDollar []yySymType
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_ = yyDollar // silence set and not used
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|
|
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:117
|
|
|
|
{
|
|
|
|
yylex.(*parser).generatedParserResult.(*VectorSelector).LabelMatchers = yyDollar[2].matchers
|
|
|
|
}
|
|
|
|
case 2:
|
|
|
|
yyDollar = yyS[yypt-1 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:119
|
|
|
|
{
|
|
|
|
yylex.(*parser).errorf("unknown syntax error after parsing %v", yylex.(*parser).token.desc())
|
|
|
|
}
|
|
|
|
case 3:
|
|
|
|
yyDollar = yyS[yypt-3 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:125
|
|
|
|
{
|
|
|
|
yyVAL.matchers = append(yyDollar[1].matchers, yyDollar[3].matcher)
|
|
|
|
}
|
|
|
|
case 4:
|
|
|
|
yyDollar = yyS[yypt-1 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:127
|
|
|
|
{
|
|
|
|
yyVAL.matchers = []*labels.Matcher{yyDollar[1].matcher}
|
|
|
|
}
|
|
|
|
case 5:
|
|
|
|
yyDollar = yyS[yypt-3 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:132
|
|
|
|
{
|
|
|
|
yyVAL.matchers = yyDollar[2].matchers
|
|
|
|
}
|
|
|
|
case 6:
|
|
|
|
yyDollar = yyS[yypt-2 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:134
|
|
|
|
{
|
|
|
|
yyVAL.matchers = []*labels.Matcher{}
|
|
|
|
}
|
|
|
|
case 7:
|
|
|
|
yyDollar = yyS[yypt-3 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:140
|
|
|
|
{
|
|
|
|
yyVAL.matcher = yylex.(*parser).newLabelMatcher(yyDollar[1].item, yyDollar[2].item, yyDollar[3].item)
|
|
|
|
}
|
|
|
|
case 8:
|
|
|
|
yyDollar = yyS[yypt-3 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:142
|
|
|
|
{
|
|
|
|
yylex.(*parser).errorf("unexpected %v in label matching, expected string", yylex.(*parser).token.desc())
|
|
|
|
}
|
|
|
|
case 9:
|
|
|
|
yyDollar = yyS[yypt-1 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:146
|
|
|
|
{
|
|
|
|
yyVAL.item = yyDollar[1].item
|
|
|
|
}
|
|
|
|
case 10:
|
|
|
|
yyDollar = yyS[yypt-1 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:147
|
|
|
|
{
|
|
|
|
yyVAL.item = yyDollar[1].item
|
|
|
|
}
|
|
|
|
case 11:
|
|
|
|
yyDollar = yyS[yypt-1 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:148
|
|
|
|
{
|
|
|
|
yyVAL.item = yyDollar[1].item
|
|
|
|
}
|
|
|
|
case 12:
|
|
|
|
yyDollar = yyS[yypt-1 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:149
|
|
|
|
{
|
|
|
|
yyVAL.item = yyDollar[1].item
|
|
|
|
}
|
|
|
|
case 13:
|
|
|
|
yyDollar = yyS[yypt-1 : yypt+1]
|
|
|
|
//line promql/generated_parser.y:151
|
|
|
|
{
|
2019-12-09 19:03:31 +00:00
|
|
|
yylex.(*parser).errorf("expected label matching operator but got %s", yylex.(*parser).token.Val)
|
2019-12-05 16:16:12 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
goto yystack /* stack new state and value */
|
|
|
|
}
|