Fix minor warning in lexer

svtesan · web-flow · commit f5c6cc11d2d9 · 2020-02-15T19:19:38.000+08:00
* Fragment rule can match empty string
diff --git a/graphql/GraphQL.g4 b/graphql/GraphQL.g4
@@ -322,7 +322,7 @@ FLOAT: INT FRACTIONAL_PART
     | INT FRACTIONAL_PART EXPONENTIAL_PART
     ;
 
-INT: NEGATIVE_SIGN? '0'?
+INT: NEGATIVE_SIGN? '0'
     | NEGATIVE_SIGN? NONZERO_DIGIT DIGIT*
     ;
 

Original file line number	Diff line number	Diff line change
`@@ -322,7 +322,7 @@ FLOAT: INT FRACTIONAL_PART`
`322`	`322`	`\| INT FRACTIONAL_PART EXPONENTIAL_PART`
`323`	`323`	`;`
`324`	`324`
`325`		`-INT: NEGATIVE_SIGN? '0'?`
	`325`	`+INT: NEGATIVE_SIGN? '0'`
`326`	`326`	`\| NEGATIVE_SIGN? NONZERO_DIGIT DIGIT*`
`327`	`327`	`;`
`328`	`328`