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lex: remove ** operator

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I don't think this would be useful, and it would
only complicate parsing due to its right
associativity, so it has to go
This commit is contained in:
anna 2022-07-28 19:56:55 +02:00
parent cb98c78b37
commit 0620ce0468
Signed by: fef
GPG key ID: EC22E476DC2D3D84
3 changed files with 0 additions and 10 deletions

1
operator-precedence.txt
View file

@ -9,7 +9,6 @@ L2R: &
L2R: << >>
L2R: + - (binary minus)
L2R: * / %
L2R: **
R2L: ! - (unary minus)
L2R: () [] .

2
src/lex/mod.rs
View file

@ -100,8 +100,6 @@ impl Iterator for Lexer {
'+' => self.token_ok(token::Kind::Plus),
'-' if self.skip_if_match("=") => self.token_ok(token::Kind::MinusEq),
'-' => self.token_ok(token::Kind::Minus),
'*' if self.skip_if_match("*=") => self.token_ok(token::Kind::AsteriskAsteriskEq),
'*' if self.skip_if_match("*") => self.token_ok(token::Kind::AsteriskAsterisk),
'*' if self.skip_if_match("=") => self.token_ok(token::Kind::AsteriskEq),
'*' => self.token_ok(token::Kind::Asterisk),
'/' if self.skip_if_match("=") => self.token_ok(token::Kind::SlashEq),

7
src/lex/token.rs
View file

@ -62,9 +62,7 @@ pub enum Kind {
Minus,
MinusEq,
Asterisk,
AsteriskAsterisk,
AsteriskEq,
AsteriskAsteriskEq,
Slash,
SlashEq,
Percent,
@ -110,7 +108,6 @@ impl Kind {
Kind::PlusEq => true,
Kind::MinusEq => true,
Kind::AsteriskEq => true,
Kind::AsteriskAsteriskEq => true,
Kind::SlashEq => true,
Kind::PercentEq => true,
Kind::GtGtEq => true,
@ -130,7 +127,6 @@ impl Kind {
Kind::PlusEq => Some(2),
Kind::MinusEq => Some(2),
Kind::AsteriskEq => Some(2),
Kind::AsteriskAsteriskEq => Some(2),
Kind::SlashEq => Some(2),
Kind::PercentEq => Some(2),
Kind::AmpEq => Some(2),
@ -156,7 +152,6 @@ impl Kind {
Kind::Asterisk => Some(11),
Kind::Slash => Some(11),
Kind::Percent => Some(11),
Kind::AsteriskAsterisk => Some(12),
_ => None,
}
}
@ -206,9 +201,7 @@ impl fmt::Display for Kind {
Kind::Minus => "minus",
Kind::MinusEq => "minuseq",
Kind::Asterisk => "asterisk",
Kind::AsteriskAsterisk => "asteriskasterisk",
Kind::AsteriskEq => "asteriskeq",
Kind::AsteriskAsteriskEq => "asteriskasteriskeq",
Kind::Slash => "slash",
Kind::SlashEq => "slasheq",
Kind::Percent => "percent",