Prism accepts ("a":) as a symbol literal with parenthese, but Ruby rejects it #3035
Description
Bug report
Example code:
("a":)Ruby:
-e:1: syntax error, unexpected tLABEL_END, expecting literal content or terminator or tSTRING_DBEG or tSTRING_DVAR
("a":)
Prism:
@ ProgramNode (location: (1,0)-(1,6))
├── flags: ∅
├── locals: []
└── statements:
@ StatementsNode (location: (1,0)-(1,6))
├── flags: ∅
└── body: (length: 1)
└── @ ParenthesesNode (location: (1,0)-(1,6))
├── flags: newline
├── body:
│ @ StatementsNode (location: (1,1)-(1,5))
│ ├── flags: ∅
│ └── body: (length: 1)
│ └── @ SymbolNode (location: (1,1)-(1,5))
│ ├── flags: newline, static_literal, forced_us_ascii_encoding
│ ├── opening_loc: (1,1)-(1,2) = "\""
│ ├── value_loc: (1,2)-(1,3) = "a"
│ ├── closing_loc: (1,3)-(1,5) = "\":"
│ └── unescaped: "a"
├── opening_loc: (1,0)-(1,1) = "("
└── closing_loc: (1,5)-(1,6) = ")"and ruby --parser=prism -e 'x = ("a":); p x' shows :a actually.
Bonus note
This bug is found by Lernen. Automata learning is real!