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config/lang: fix shift/reduce conflict

This commit is contained in:
Mitchell Hashimoto 2015-02-26 14:33:56 -08:00
parent 07b78fdf84
commit 9ddcaf15eb
3 changed files with 40 additions and 40 deletions
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2
config/lang/lang.y
View File

@ -27,6 +27,8 @@ import (
%type <node> expr interpolation literal literalModeTop literalModeValue %type <node> expr interpolation literal literalModeTop literalModeValue
%type <nodeList> args %type <nodeList> args
%left ARITH_OP
%% %%
top: top:

38
config/lang/y.go
View File

@ -50,7 +50,7 @@ const parserEofCode = 1
const parserErrCode = 2 const parserErrCode = 2
const parserMaxDepth = 200 const parserMaxDepth = 200
//line lang.y:159 //line lang.y:161
//line yacctab:1 //line yacctab:1
var parserExca = []int{ var parserExca = []int{
@ -76,7 +76,7 @@ var parserAct = []int{
var parserPact = []int{ var parserPact = []int{
-2, -1000, -2, -1000, -1000, -1000, -1000, -3, -1000, 3, -2, -1000, -2, -1000, -1000, -1000, -1000, -3, -1000, 3,
-2, -1000, -1000, 10, -1000, -3, -3, -8, -4, -8, -2, -1000, -1000, 10, -1000, -3, -3, -1000, -4, -8,
-1000, -3, -8, -1000, -3, -8,
} }
var parserPgo = []int{ var parserPgo = []int{
@ -344,7 +344,7 @@ parserdefault:
switch parsernt { switch parsernt {
case 1: case 1:
//line lang.y:33 //line lang.y:35
{ {
parserResult = &ast.LiteralNode{ parserResult = &ast.LiteralNode{
Value: "", Value: "",
@ -353,7 +353,7 @@ parserdefault:
} }
} }
case 2: case 2:
//line lang.y:41 //line lang.y:43
{ {
parserResult = parserS[parserpt-0].node parserResult = parserS[parserpt-0].node
@ -375,12 +375,12 @@ parserdefault:
} }
} }
case 3: case 3:
//line lang.y:64 //line lang.y:66
{ {
parserVAL.node = parserS[parserpt-0].node parserVAL.node = parserS[parserpt-0].node
} }
case 4: case 4:
//line lang.y:68 //line lang.y:70
{ {
var result []ast.Node var result []ast.Node
if c, ok := parserS[parserpt-1].node.(*ast.Concat); ok { if c, ok := parserS[parserpt-1].node.(*ast.Concat); ok {
@ -395,27 +395,27 @@ parserdefault:
} }
} }
case 5: case 5:
//line lang.y:84 //line lang.y:86
{ {
parserVAL.node = parserS[parserpt-0].node parserVAL.node = parserS[parserpt-0].node
} }
case 6: case 6:
//line lang.y:88 //line lang.y:90
{ {
parserVAL.node = parserS[parserpt-0].node parserVAL.node = parserS[parserpt-0].node
} }
case 7: case 7:
//line lang.y:94 //line lang.y:96
{ {
parserVAL.node = parserS[parserpt-1].node parserVAL.node = parserS[parserpt-1].node
} }
case 8: case 8:
//line lang.y:100 //line lang.y:102
{ {
parserVAL.node = parserS[parserpt-0].node parserVAL.node = parserS[parserpt-0].node
} }
case 9: case 9:
//line lang.y:104 //line lang.y:106
{ {
parserVAL.node = &ast.LiteralNode{ parserVAL.node = &ast.LiteralNode{
Value: parserS[parserpt-0].token.Value.(int), Value: parserS[parserpt-0].token.Value.(int),
@ -424,7 +424,7 @@ parserdefault:
} }
} }
case 10: case 10:
//line lang.y:112 //line lang.y:114
{ {
parserVAL.node = &ast.LiteralNode{ parserVAL.node = &ast.LiteralNode{
Value: parserS[parserpt-0].token.Value.(float64), Value: parserS[parserpt-0].token.Value.(float64),
@ -433,7 +433,7 @@ parserdefault:
} }
} }
case 11: case 11:
//line lang.y:120 //line lang.y:122
{ {
parserVAL.node = &ast.Arithmetic{ parserVAL.node = &ast.Arithmetic{
Op: parserS[parserpt-1].token.Value.(ast.ArithmeticOp), Op: parserS[parserpt-1].token.Value.(ast.ArithmeticOp),
@ -442,32 +442,32 @@ parserdefault:
} }
} }
case 12: case 12:
//line lang.y:128 //line lang.y:130
{ {
parserVAL.node = &ast.VariableAccess{Name: parserS[parserpt-0].token.Value.(string), Posx: parserS[parserpt-0].token.Pos} parserVAL.node = &ast.VariableAccess{Name: parserS[parserpt-0].token.Value.(string), Posx: parserS[parserpt-0].token.Pos}
} }
case 13: case 13:
//line lang.y:132 //line lang.y:134
{ {
parserVAL.node = &ast.Call{Func: parserS[parserpt-3].token.Value.(string), Args: parserS[parserpt-1].nodeList, Posx: parserS[parserpt-3].token.Pos} parserVAL.node = &ast.Call{Func: parserS[parserpt-3].token.Value.(string), Args: parserS[parserpt-1].nodeList, Posx: parserS[parserpt-3].token.Pos}
} }
case 14: case 14:
//line lang.y:137 //line lang.y:139
{ {
parserVAL.nodeList = nil parserVAL.nodeList = nil
} }
case 15: case 15:
//line lang.y:141 //line lang.y:143
{ {
parserVAL.nodeList = append(parserS[parserpt-2].nodeList, parserS[parserpt-0].node) parserVAL.nodeList = append(parserS[parserpt-2].nodeList, parserS[parserpt-0].node)
} }
case 16: case 16:
//line lang.y:145 //line lang.y:147
{ {
parserVAL.nodeList = append(parserVAL.nodeList, parserS[parserpt-0].node) parserVAL.nodeList = append(parserVAL.nodeList, parserS[parserpt-0].node)
} }
case 17: case 17:
//line lang.y:151 //line lang.y:153
{ {
parserVAL.node = &ast.LiteralNode{ parserVAL.node = &ast.LiteralNode{
Value: parserS[parserpt-0].token.Value.(string), Value: parserS[parserpt-0].token.Value.(string),

40
config/lang/y.output
View File

@ -5,7 +5,7 @@ state 0
PROGRAM_BRACKET_LEFT shift 7 PROGRAM_BRACKET_LEFT shift 7
STRING shift 6 STRING shift 6
. reduce 1 (src line 32) . reduce 1 (src line 34)
interpolation goto 5 interpolation goto 5
literal goto 4 literal goto 4
@ -26,7 +26,7 @@ state 2
PROGRAM_BRACKET_LEFT shift 7 PROGRAM_BRACKET_LEFT shift 7
STRING shift 6 STRING shift 6
. reduce 2 (src line 40) . reduce 2 (src line 42)
interpolation goto 5 interpolation goto 5
literal goto 4 literal goto 4
@ -35,25 +35,25 @@ state 2
state 3 state 3
literalModeTop: literalModeValue. (3) literalModeTop: literalModeValue. (3)
. reduce 3 (src line 62) . reduce 3 (src line 64)
state 4 state 4
literalModeValue: literal. (5) literalModeValue: literal. (5)
. reduce 5 (src line 82) . reduce 5 (src line 84)
state 5 state 5
literalModeValue: interpolation. (6) literalModeValue: interpolation. (6)
. reduce 6 (src line 87) . reduce 6 (src line 89)
state 6 state 6
literal: STRING. (17) literal: STRING. (17)
. reduce 17 (src line 149) . reduce 17 (src line 151)
state 7 state 7
@ -75,7 +75,7 @@ state 7
state 8 state 8
literalModeTop: literalModeTop literalModeValue. (4) literalModeTop: literalModeTop literalModeValue. (4)
. reduce 4 (src line 67) . reduce 4 (src line 69)
state 9 state 9
@ -93,7 +93,7 @@ state 10
PROGRAM_BRACKET_LEFT shift 7 PROGRAM_BRACKET_LEFT shift 7
STRING shift 6 STRING shift 6
. reduce 8 (src line 98) . reduce 8 (src line 100)
interpolation goto 5 interpolation goto 5
literal goto 4 literal goto 4
@ -102,13 +102,13 @@ state 10
state 11 state 11
expr: INTEGER. (9) expr: INTEGER. (9)
. reduce 9 (src line 103) . reduce 9 (src line 105)
state 12 state 12
expr: FLOAT. (10) expr: FLOAT. (10)
. reduce 10 (src line 111) . reduce 10 (src line 113)
state 13 state 13
@ -116,13 +116,13 @@ state 13
expr: IDENTIFIER.PAREN_LEFT args PAREN_RIGHT expr: IDENTIFIER.PAREN_LEFT args PAREN_RIGHT
PAREN_LEFT shift 16 PAREN_LEFT shift 16
. reduce 12 (src line 127) . reduce 12 (src line 129)
state 14 state 14
interpolation: PROGRAM_BRACKET_LEFT expr PROGRAM_BRACKET_RIGHT. (7) interpolation: PROGRAM_BRACKET_LEFT expr PROGRAM_BRACKET_RIGHT. (7)
. reduce 7 (src line 92) . reduce 7 (src line 94)
state 15 state 15
@ -150,7 +150,7 @@ state 16
INTEGER shift 11 INTEGER shift 11
FLOAT shift 12 FLOAT shift 12
STRING shift 6 STRING shift 6
. reduce 14 (src line 136) . reduce 14 (src line 138)
expr goto 19 expr goto 19
interpolation goto 5 interpolation goto 5
@ -159,13 +159,11 @@ state 16
literalModeValue goto 3 literalModeValue goto 3
args goto 18 args goto 18
17: shift/reduce conflict (shift 15(0), red'n 11(0)) on ARITH_OP
state 17 state 17
expr: expr.ARITH_OP expr expr: expr.ARITH_OP expr
expr: expr ARITH_OP expr. (11) expr: expr ARITH_OP expr. (11)
ARITH_OP shift 15 . reduce 11 (src line 121)
. reduce 11 (src line 119)
state 18 state 18
@ -182,13 +180,13 @@ state 19
args: expr. (16) args: expr. (16)
ARITH_OP shift 15 ARITH_OP shift 15
. reduce 16 (src line 144) . reduce 16 (src line 146)
state 20 state 20
expr: IDENTIFIER PAREN_LEFT args PAREN_RIGHT. (13) expr: IDENTIFIER PAREN_LEFT args PAREN_RIGHT. (13)
. reduce 13 (src line 131) . reduce 13 (src line 133)
state 21 state 21
@ -212,16 +210,16 @@ state 22
args: args COMMA expr. (15) args: args COMMA expr. (15)
ARITH_OP shift 15 ARITH_OP shift 15
. reduce 15 (src line 140) . reduce 15 (src line 142)
15 terminals, 8 nonterminals 15 terminals, 8 nonterminals
18 grammar rules, 23/2000 states 18 grammar rules, 23/2000 states
1 shift/reduce, 0 reduce/reduce conflicts reported 0 shift/reduce, 0 reduce/reduce conflicts reported
57 working sets used 57 working sets used
memory: parser 30/30000 memory: parser 30/30000
18 extra closures 18 extra closures
34 shift entries, 1 exceptions 33 shift entries, 1 exceptions
13 goto entries 13 goto entries
19 entries saved by goto default 19 entries saved by goto default
Optimizer space used: output 26/30000 Optimizer space used: output 26/30000