RepoMirrors
/
prometheus
mirror of https://github.com/prometheus/prometheus
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
prometheus/rules/parser.y.go

502 lines
11 KiB
Go
Raw Blame History

//line parser.y:15
package rules
import "fmt"
import "github.com/matttproud/prometheus/model"
import "github.com/matttproud/prometheus/rules/ast"
//line parser.y:22
type yySymType struct {
yys int
num model.SampleValue
str string
ruleNode ast.Node
ruleNodeSlice []ast.Node
boolean bool
labelNameSlice []model.LabelName
labelSet model.LabelSet
}
const START_RULES = 57346
const START_EXPRESSION = 57347
const IDENTIFIER = 57348
const STRING = 57349
const DURATION = 57350
const NUMBER = 57351
const PERMANENT = 57352
const GROUP_OP = 57353
const AGGR_OP = 57354
const CMP_OP = 57355
const ADDITIVE_OP = 57356
const MULT_OP = 57357
var yyToknames = []string{
"START_RULES",
"START_EXPRESSION",
"IDENTIFIER",
"STRING",
"DURATION",
"NUMBER",
"PERMANENT",
"GROUP_OP",
"AGGR_OP",
"CMP_OP",
"ADDITIVE_OP",
"MULT_OP",
" =",
}
var yyStatenames = []string{}
const yyEofCode = 1
const yyErrCode = 2
const yyMaxDepth = 200
//line parser.y:175
//line yacctab:1
var yyExca = []int{
-1, 1,
1, -1,
-2, 0,
-1, 4,
6, 7,
-2, 1,
}
const yyNprod = 33
const yyPrivate = 57344
var yyTokenNames []string
var yyStates []string
const yyLast = 84
var yyAct = []int{
32, 36, 31, 16, 6, 17, 15, 16, 18, 40,
14, 14, 21, 46, 14, 20, 25, 26, 27, 8,
33, 54, 10, 38, 22, 9, 19, 17, 15, 16,
17, 15, 16, 7, 30, 28, 14, 8, 33, 14,
10, 15, 16, 9, 47, 48, 49, 21, 53, 14,
39, 7, 8, 37, 58, 10, 57, 42, 9, 41,
43, 44, 52, 13, 45, 35, 7, 24, 50, 59,
56, 37, 23, 2, 3, 11, 5, 4, 1, 12,
34, 51, 55, 29,
}
var yyPact = []int{
69, -1000, -1000, 46, 53, -1000, 17, 46, -5, 4,
-1000, -1000, 66, -1000, 59, 46, 46, 46, 14, -1000,
13, 47, 46, 30, -14, -12, -11, 27, -1000, 38,
-1000, -1000, 17, -1000, 42, -1000, -1000, 48, -8, 28,
-1000, -1000, 31, -1000, 65, 61, 51, 46, -1000, -1000,
-1000, -1000, 1, 17, 64, 35, -1000, -1000, 63, -1000,
}
var yyPgo = []int{
0, 83, 82, 81, 1, 80, 26, 0, 2, 79,
78, 77, 76, 75,
}
var yyR1 = []int{
0, 10, 10, 11, 11, 12, 13, 9, 9, 6,
6, 6, 5, 5, 4, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 3, 3, 2, 2, 1,
1, 8, 8,
}
var yyR2 = []int{
0, 2, 2, 0, 2, 1, 5, 0, 1, 0,
3, 2, 1, 3, 3, 3, 2, 4, 3, 4,
5, 3, 3, 3, 1, 0, 4, 1, 3, 1,
3, 1, 1,
}
var yyChk = []int{
-1000, -10, 4, 5, -11, -12, -7, 20, 6, 12,
9, -13, -9, 10, 22, 14, 15, 13, -7, -6,
20, 17, 20, 6, 8, -7, -7, -7, 21, -1,
21, -8, -7, 7, -5, 18, -4, 6, -7, -6,
23, 21, 19, 18, 19, 16, 21, 16, -8, -4,
7, -3, 11, -7, 20, -2, 6, 21, 19, 6,
}
var yyDef = []int{
0, -2, 3, 0, -2, 2, 5, 0, 9, 0,
24, 4, 0, 8, 0, 0, 0, 0, 0, 16,
0, 0, 0, 9, 0, 21, 22, 23, 15, 0,
18, 29, 31, 32, 0, 11, 12, 0, 0, 0,
19, 17, 0, 10, 0, 0, 25, 0, 30, 13,
14, 20, 0, 6, 0, 0, 27, 26, 0, 28,
}
var yyTok1 = []int{
1, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
20, 21, 3, 3, 19, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 16, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 22, 3, 23, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 17, 3, 18,
}
var yyTok2 = []int{
2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14, 15,
}
var yyTok3 = []int{
0,
}
//line yaccpar:1
/* parser for yacc output */
var yyDebug = 0
type yyLexer interface {
Lex(lval *yySymType) int
Error(s string)
}
const yyFlag = -1000
func yyTokname(c int) string {
if c > 0 && c <= len(yyToknames) {
if yyToknames[c-1] != "" {
return yyToknames[c-1]
}
}
return fmt.Sprintf("tok-%v", c)
}
func yyStatname(s int) string {
if s >= 0 && s < len(yyStatenames) {
if yyStatenames[s] != "" {
return yyStatenames[s]
}
}
return fmt.Sprintf("state-%v", s)
}
func yylex1(lex yyLexer, lval *yySymType) int {
c := 0
char := lex.Lex(lval)
if char <= 0 {
c = yyTok1[0]
goto out
}
if char < len(yyTok1) {
c = yyTok1[char]
goto out
}
if char >= yyPrivate {
if char < yyPrivate+len(yyTok2) {
c = yyTok2[char-yyPrivate]
goto out
}
}
for i := 0; i < len(yyTok3); i += 2 {
c = yyTok3[i+0]
if c == char {
c = yyTok3[i+1]
goto out
}
}
out:
if c == 0 {
c = yyTok2[1] /* unknown char */
}
if yyDebug >= 3 {
fmt.Printf("lex %U %s\n", uint(char), yyTokname(c))
}
return c
}
func yyParse(yylex yyLexer) int {
var yyn int
var yylval yySymType
var yyVAL yySymType
yyS := make([]yySymType, yyMaxDepth)
Nerrs := 0 /* number of errors */
Errflag := 0 /* error recovery flag */
yystate := 0
yychar := -1
yyp := -1
goto yystack
ret0:
return 0
ret1:
return 1
yystack:
/* put a state and value onto the stack */
if yyDebug >= 4 {
fmt.Printf("char %v in %v\n", yyTokname(yychar), 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 yychar < 0 {
yychar = yylex1(yylex, &yylval)
}
yyn += yychar
if yyn < 0 || yyn >= yyLast {
goto yydefault
}
yyn = yyAct[yyn]
if yyChk[yyn] == yychar { /* valid shift */
yychar = -1
yyVAL = yylval
yystate = yyn
if Errflag > 0 {
Errflag--
}
goto yystack
}
yydefault:
/* default state action */
yyn = yyDef[yystate]
if yyn == -2 {
if yychar < 0 {
yychar = yylex1(yylex, &yylval)
}
/* 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 == yychar {
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("syntax error")
Nerrs++
if yyDebug >= 1 {
fmt.Printf("%s", yyStatname(yystate))
fmt.Printf("saw %s\n", yyTokname(yychar))
}
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 {
fmt.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 {
fmt.Printf("error recovery discards %s\n", yyTokname(yychar))
}
if yychar == yyEofCode {
goto ret1
}
yychar = -1
goto yynewstate /* try again in the same state */
}
}
/* reduction by production yyn */
if yyDebug >= 2 {
fmt.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]
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 5:
//line parser.y:65
{ yylex.(*RulesLexer).parsedExpr = yyS[yypt-0].ruleNode }
case 6:
//line parser.y:69
{
rule, err := CreateRule(yyS[yypt-3].str, yyS[yypt-2].labelSet, yyS[yypt-0].ruleNode, yyS[yypt-4].boolean)
if err != nil { yylex.Error(err.Error()); return 1 }
yylex.(*RulesLexer).parsedRules = append(yylex.(*RulesLexer).parsedRules, rule)
}
case 7:
//line parser.y:77
{ yyVAL.boolean = false }
case 8:
//line parser.y:79
{ yyVAL.boolean = true }
case 9:
//line parser.y:83
{ yyVAL.labelSet = model.LabelSet{} }
case 10:
//line parser.y:85
{ yyVAL.labelSet = yyS[yypt-1].labelSet }
case 11:
//line parser.y:87
{ yyVAL.labelSet = model.LabelSet{} }
case 12:
//line parser.y:90
{ yyVAL.labelSet = yyS[yypt-0].labelSet }
case 13:
//line parser.y:92
{ for k, v := range yyS[yypt-0].labelSet { yyVAL.labelSet[k] = v } }
case 14:
//line parser.y:96
{ yyVAL.labelSet = model.LabelSet{ model.LabelName(yyS[yypt-2].str): model.LabelValue(yyS[yypt-0].str) } }
case 15:
//line parser.y:101
{ yyVAL.ruleNode = yyS[yypt-1].ruleNode }
case 16:
//line parser.y:103
{ yyS[yypt-0].labelSet["name"] = model.LabelValue(yyS[yypt-1].str); yyVAL.ruleNode = ast.NewVectorLiteral(yyS[yypt-0].labelSet) }
case 17:
//line parser.y:105
{
var err error
yyVAL.ruleNode, err = NewFunctionCall(yyS[yypt-3].str, yyS[yypt-1].ruleNodeSlice)
if err != nil { yylex.Error(err.Error()); return 1 }
}
case 18:
//line parser.y:111
{
var err error
yyVAL.ruleNode, err = NewFunctionCall(yyS[yypt-2].str, []ast.Node{})
if err != nil { yylex.Error(err.Error()); return 1 }
}
case 19:
//line parser.y:117
{
var err error
yyVAL.ruleNode, err = NewMatrix(yyS[yypt-3].ruleNode, yyS[yypt-1].str)
if err != nil { yylex.Error(err.Error()); return 1 }
}
case 20:
//line parser.y:123
{
var err error
yyVAL.ruleNode, err = NewVectorAggregation(yyS[yypt-4].str, yyS[yypt-2].ruleNode, yyS[yypt-0].labelNameSlice)
if err != nil { yylex.Error(err.Error()); return 1 }
}
case 21:
//line parser.y:131
{
var err error
yyVAL.ruleNode, err = NewArithExpr(yyS[yypt-1].str, yyS[yypt-2].ruleNode, yyS[yypt-0].ruleNode)
if err != nil { yylex.Error(err.Error()); return 1 }
}
case 22:
//line parser.y:137
{
var err error
yyVAL.ruleNode, err = NewArithExpr(yyS[yypt-1].str, yyS[yypt-2].ruleNode, yyS[yypt-0].ruleNode)
if err != nil { yylex.Error(err.Error()); return 1 }
}
case 23:
//line parser.y:143
{
var err error
yyVAL.ruleNode, err = NewArithExpr(yyS[yypt-1].str, yyS[yypt-2].ruleNode, yyS[yypt-0].ruleNode)
if err != nil { yylex.Error(err.Error()); return 1 }
}
case 24:
//line parser.y:149
{ yyVAL.ruleNode = ast.NewScalarLiteral(yyS[yypt-0].num)}
case 25:
//line parser.y:153
{ yyVAL.labelNameSlice = []model.LabelName{} }
case 26:
//line parser.y:155
{ yyVAL.labelNameSlice = yyS[yypt-1].labelNameSlice }
case 27:
//line parser.y:159
{ yyVAL.labelNameSlice = []model.LabelName{model.LabelName(yyS[yypt-0].str)} }
case 28:
//line parser.y:161
{ yyVAL.labelNameSlice = append(yyVAL.labelNameSlice, model.LabelName(yyS[yypt-0].str)) }
case 29:
//line parser.y:165
{ yyVAL.ruleNodeSlice = []ast.Node{yyS[yypt-0].ruleNode} }
case 30:
//line parser.y:167
{ yyVAL.ruleNodeSlice = append(yyVAL.ruleNodeSlice, yyS[yypt-0].ruleNode) }
case 31:
//line parser.y:171
{ yyVAL.ruleNode = yyS[yypt-0].ruleNode }
case 32:
//line parser.y:173
{ yyVAL.ruleNode = ast.NewStringLiteral(yyS[yypt-0].str) }
}
goto yystack /* stack new state and value */
}
Reference in New Issue View Git Blame Copy Permalink