mirror of
https://github.com/prometheus/prometheus.git
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500 lines
11 KiB
Go
500 lines
11 KiB
Go
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//line parser.y:2
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package rules
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import "fmt"
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import "github.com/matttproud/prometheus/model"
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import "github.com/matttproud/prometheus/rules/ast"
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//line parser.y:9
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type yySymType struct {
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yys int
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num model.SampleValue
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str string
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ruleNode ast.Node
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ruleNodeSlice []ast.Node
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boolean bool
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labelNameSlice []model.LabelName
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labelSet model.LabelSet
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}
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const START_RULES = 57346
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const START_EXPRESSION = 57347
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const IDENTIFIER = 57348
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const STRING = 57349
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const NUMBER = 57350
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const PERMANENT = 57351
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const GROUP_OP = 57352
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const AGGR_OP = 57353
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const CMP_OP = 57354
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const ADDITIVE_OP = 57355
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const MULT_OP = 57356
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var yyToknames = []string{
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"START_RULES",
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"START_EXPRESSION",
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"IDENTIFIER",
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"STRING",
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"NUMBER",
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"PERMANENT",
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"GROUP_OP",
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"AGGR_OP",
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"CMP_OP",
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"ADDITIVE_OP",
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"MULT_OP",
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" =",
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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 yyMaxDepth = 200
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//line parser.y:162
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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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-1, 4,
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6, 7,
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-2, 1,
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}
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const yyNprod = 33
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const yyPrivate = 57344
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var yyTokenNames []string
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var yyStates []string
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const yyLast = 84
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var yyAct = []int{
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32, 36, 31, 16, 6, 17, 15, 16, 18, 40,
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14, 14, 19, 46, 14, 54, 25, 26, 27, 8,
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33, 10, 21, 38, 9, 20, 17, 15, 16, 17,
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15, 16, 7, 30, 28, 14, 39, 22, 14, 8,
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33, 10, 15, 16, 9, 48, 49, 21, 53, 8,
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14, 10, 7, 58, 9, 57, 42, 37, 41, 43,
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44, 47, 7, 45, 52, 13, 50, 24, 35, 59,
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56, 37, 23, 2, 3, 11, 5, 4, 1, 12,
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34, 51, 55, 29,
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}
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var yyPact = []int{
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69, -1000, -1000, 43, 56, -1000, 17, 43, 6, 18,
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-1000, -1000, 66, -1000, 60, 43, 43, 43, 14, -1000,
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13, 51, 43, 31, -13, -11, -10, 29, -1000, 38,
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-1000, -1000, 17, -1000, 42, -1000, -1000, 48, -7, 46,
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-1000, -1000, 33, -1000, 65, 59, 54, 43, -1000, -1000,
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-1000, -1000, -4, 17, 64, 35, -1000, -1000, 63, -1000,
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}
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var yyPgo = []int{
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0, 83, 82, 81, 1, 80, 12, 0, 2, 79,
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78, 77, 76, 75,
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}
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var yyR1 = []int{
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0, 10, 10, 11, 11, 12, 13, 9, 9, 6,
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6, 6, 5, 5, 4, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 3, 3, 2, 2, 1,
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1, 8, 8,
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}
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var yyR2 = []int{
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0, 2, 2, 0, 2, 1, 5, 0, 1, 0,
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3, 2, 1, 3, 3, 3, 2, 4, 3, 4,
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5, 3, 3, 3, 1, 0, 4, 1, 3, 1,
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3, 1, 1,
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}
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var yyChk = []int{
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-1000, -10, 4, 5, -11, -12, -7, 19, 6, 11,
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8, -13, -9, 9, 21, 13, 14, 12, -7, -6,
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19, 16, 19, 6, 7, -7, -7, -7, 20, -1,
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20, -8, -7, 7, -5, 17, -4, 6, -7, -6,
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22, 20, 18, 17, 18, 15, 20, 15, -8, -4,
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7, -3, 10, -7, 19, -2, 6, 20, 18, 6,
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}
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var yyDef = []int{
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0, -2, 3, 0, -2, 2, 5, 0, 9, 0,
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24, 4, 0, 8, 0, 0, 0, 0, 0, 16,
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0, 0, 0, 9, 0, 21, 22, 23, 15, 0,
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18, 29, 31, 32, 0, 11, 12, 0, 0, 0,
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19, 17, 0, 10, 0, 0, 25, 0, 30, 13,
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14, 20, 0, 6, 0, 0, 27, 26, 0, 28,
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}
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var yyTok1 = []int{
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1, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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19, 20, 3, 3, 18, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 15, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 21, 3, 22, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 16, 3, 17,
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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,
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}
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var yyTok3 = []int{
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0,
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}
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//line yaccpar:1
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/* parser for yacc output */
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var yyDebug = 0
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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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const yyFlag = -1000
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func yyTokname(c int) string {
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if c > 0 && c <= 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 fmt.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 fmt.Sprintf("state-%v", s)
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}
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func yylex1(lex yyLexer, lval *yySymType) int {
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c := 0
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char := lex.Lex(lval)
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if char <= 0 {
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c = yyTok1[0]
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goto out
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}
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if char < len(yyTok1) {
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c = 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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c = 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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c = yyTok3[i+0]
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if c == char {
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c = 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 c == 0 {
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c = yyTok2[1] /* unknown char */
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}
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if yyDebug >= 3 {
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fmt.Printf("lex %U %s\n", uint(char), yyTokname(c))
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}
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return c
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}
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func yyParse(yylex yyLexer) int {
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var yyn int
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var yylval yySymType
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var yyVAL yySymType
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yyS := make([]yySymType, yyMaxDepth)
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Nerrs := 0 /* number of errors */
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Errflag := 0 /* error recovery flag */
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yystate := 0
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yychar := -1
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yyp := -1
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goto yystack
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ret0:
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return 0
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ret1:
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return 1
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yystack:
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/* put a state and value onto the stack */
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if yyDebug >= 4 {
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fmt.Printf("char %v in %v\n", yyTokname(yychar), yyStatname(yystate))
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}
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yyp++
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if yyp >= len(yyS) {
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nyys := make([]yySymType, len(yyS)*2)
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copy(nyys, yyS)
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yyS = nyys
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}
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yyS[yyp] = yyVAL
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yyS[yyp].yys = yystate
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yynewstate:
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yyn = yyPact[yystate]
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if yyn <= yyFlag {
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goto yydefault /* simple state */
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}
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if yychar < 0 {
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yychar = yylex1(yylex, &yylval)
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}
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yyn += yychar
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if yyn < 0 || yyn >= yyLast {
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goto yydefault
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}
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yyn = yyAct[yyn]
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if yyChk[yyn] == yychar { /* valid shift */
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yychar = -1
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yyVAL = yylval
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yystate = yyn
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if Errflag > 0 {
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Errflag--
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}
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goto yystack
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}
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yydefault:
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/* default state action */
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yyn = yyDef[yystate]
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if yyn == -2 {
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if yychar < 0 {
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yychar = yylex1(yylex, &yylval)
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}
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/* look through exception table */
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xi := 0
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for {
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if yyExca[xi+0] == -1 && yyExca[xi+1] == yystate {
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break
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}
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xi += 2
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}
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for xi += 2; ; xi += 2 {
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yyn = yyExca[xi+0]
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if yyn < 0 || yyn == yychar {
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break
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}
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}
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yyn = yyExca[xi+1]
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if yyn < 0 {
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goto ret0
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}
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}
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if yyn == 0 {
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/* error ... attempt to resume parsing */
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switch Errflag {
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case 0: /* brand new error */
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yylex.Error("syntax error")
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Nerrs++
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if yyDebug >= 1 {
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fmt.Printf("%s", yyStatname(yystate))
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fmt.Printf("saw %s\n", yyTokname(yychar))
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}
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fallthrough
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case 1, 2: /* incompletely recovered error ... try again */
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Errflag = 3
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/* find a state where "error" is a legal shift action */
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for yyp >= 0 {
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yyn = yyPact[yyS[yyp].yys] + yyErrCode
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if yyn >= 0 && yyn < yyLast {
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yystate = yyAct[yyn] /* simulate a shift of "error" */
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if yyChk[yystate] == yyErrCode {
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goto yystack
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}
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}
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/* the current p has no shift on "error", pop stack */
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if yyDebug >= 2 {
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fmt.Printf("error recovery pops state %d\n", yyS[yyp].yys)
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}
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yyp--
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}
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/* there is no state on the stack with an error shift ... abort */
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goto ret1
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case 3: /* no shift yet; clobber input char */
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if yyDebug >= 2 {
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fmt.Printf("error recovery discards %s\n", yyTokname(yychar))
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}
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if yychar == yyEofCode {
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goto ret1
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}
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yychar = -1
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goto yynewstate /* try again in the same state */
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}
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}
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/* reduction by production yyn */
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if yyDebug >= 2 {
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fmt.Printf("reduce %v in:\n\t%v\n", yyn, yyStatname(yystate))
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}
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yynt := yyn
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yypt := yyp
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_ = yypt // guard against "declared and not used"
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yyp -= yyR2[yyn]
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yyVAL = yyS[yyp+1]
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/* consult goto table to find next state */
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yyn = yyR1[yyn]
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yyg := yyPgo[yyn]
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yyj := yyg + yyS[yyp].yys + 1
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if yyj >= yyLast {
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yystate = yyAct[yyg]
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} else {
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yystate = yyAct[yyj]
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if yyChk[yystate] != -yyn {
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yystate = yyAct[yyg]
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}
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}
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// dummy call; replaced with literal code
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switch yynt {
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case 5:
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//line parser.y:52
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{ yylex.(*RulesLexer).parsedExpr = yyS[yypt-0].ruleNode }
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case 6:
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//line parser.y:56
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{
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rule, err := CreateRule(yyS[yypt-3].str, yyS[yypt-2].labelSet, yyS[yypt-0].ruleNode, yyS[yypt-4].boolean)
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if err != nil { yylex.Error(err.Error()); return 1 }
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yylex.(*RulesLexer).parsedRules = append(yylex.(*RulesLexer).parsedRules, rule)
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}
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case 7:
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//line parser.y:64
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{ yyVAL.boolean = false }
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case 8:
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//line parser.y:66
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{ yyVAL.boolean = true }
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case 9:
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//line parser.y:70
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{ yyVAL.labelSet = model.LabelSet{} }
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case 10:
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//line parser.y:72
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{ yyVAL.labelSet = yyS[yypt-1].labelSet }
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case 11:
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//line parser.y:74
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{ yyVAL.labelSet = model.LabelSet{} }
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case 12:
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//line parser.y:77
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{ yyVAL.labelSet = yyS[yypt-0].labelSet }
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case 13:
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//line parser.y:79
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{ for k, v := range yyS[yypt-0].labelSet { yyVAL.labelSet[k] = v } }
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case 14:
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//line parser.y:83
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{ yyVAL.labelSet = model.LabelSet{ model.LabelName(yyS[yypt-2].str): model.LabelValue(yyS[yypt-0].str) } }
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case 15:
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//line parser.y:88
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{ yyVAL.ruleNode = yyS[yypt-1].ruleNode }
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case 16:
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//line parser.y:90
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{ yyS[yypt-0].labelSet["name"] = model.LabelValue(yyS[yypt-1].str); yyVAL.ruleNode = ast.NewVectorLiteral(yyS[yypt-0].labelSet) }
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case 17:
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//line parser.y:92
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{
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var err error
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yyVAL.ruleNode, err = NewFunctionCall(yyS[yypt-3].str, yyS[yypt-1].ruleNodeSlice)
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if err != nil { yylex.Error(err.Error()); return 1 }
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}
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case 18:
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//line parser.y:98
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{
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var err error
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yyVAL.ruleNode, err = NewFunctionCall(yyS[yypt-2].str, []ast.Node{})
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if err != nil { yylex.Error(err.Error()); return 1 }
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}
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case 19:
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//line parser.y:104
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{
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var err error
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yyVAL.ruleNode, err = NewMatrix(yyS[yypt-3].ruleNode, yyS[yypt-1].str)
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if err != nil { yylex.Error(err.Error()); return 1 }
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}
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case 20:
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//line parser.y:110
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{
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var err error
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yyVAL.ruleNode, err = NewVectorAggregation(yyS[yypt-4].str, yyS[yypt-2].ruleNode, yyS[yypt-0].labelNameSlice)
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if err != nil { yylex.Error(err.Error()); return 1 }
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}
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case 21:
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//line parser.y:118
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{
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var err error
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yyVAL.ruleNode, err = NewArithExpr(yyS[yypt-1].str, yyS[yypt-2].ruleNode, yyS[yypt-0].ruleNode)
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if err != nil { yylex.Error(err.Error()); return 1 }
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}
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case 22:
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//line parser.y:124
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{
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var err error
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yyVAL.ruleNode, err = NewArithExpr(yyS[yypt-1].str, yyS[yypt-2].ruleNode, yyS[yypt-0].ruleNode)
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if err != nil { yylex.Error(err.Error()); return 1 }
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}
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case 23:
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//line parser.y:130
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{
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var err error
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yyVAL.ruleNode, err = NewArithExpr(yyS[yypt-1].str, yyS[yypt-2].ruleNode, yyS[yypt-0].ruleNode)
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if err != nil { yylex.Error(err.Error()); return 1 }
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}
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case 24:
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//line parser.y:136
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{ yyVAL.ruleNode = ast.NewScalarLiteral(yyS[yypt-0].num)}
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case 25:
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//line parser.y:140
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{ yyVAL.labelNameSlice = []model.LabelName{} }
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case 26:
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//line parser.y:142
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{ yyVAL.labelNameSlice = yyS[yypt-1].labelNameSlice }
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case 27:
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//line parser.y:146
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{ yyVAL.labelNameSlice = []model.LabelName{model.LabelName(yyS[yypt-0].str)} }
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case 28:
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//line parser.y:148
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{ yyVAL.labelNameSlice = append(yyVAL.labelNameSlice, model.LabelName(yyS[yypt-0].str)) }
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case 29:
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//line parser.y:152
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{ yyVAL.ruleNodeSlice = []ast.Node{yyS[yypt-0].ruleNode} }
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case 30:
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//line parser.y:154
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{ yyVAL.ruleNodeSlice = append(yyVAL.ruleNodeSlice, yyS[yypt-0].ruleNode) }
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case 31:
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//line parser.y:158
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{ yyVAL.ruleNode = yyS[yypt-0].ruleNode }
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case 32:
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//line parser.y:160
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|
{ yyVAL.ruleNode = ast.NewStringLiteral(yyS[yypt-0].str) }
|
|
}
|
|
goto yystack /* stack new state and value */
|
|
}
|