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Fix other pattern parsing bugs

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This commit is contained in:
greg 2018-08-21 20:02:10 -07:00
parent fa7b6ce96b
commit 2d961d6402
1 changed files with 44 additions and 4 deletions
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48
schala-lang/src/parsing.rs
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@ -736,10 +736,18 @@ impl Parser {
_ => Pattern::Literal(PatternLiteral::VarPattern(id))
}
},
//TODO I think these are buggy b/c they don't advance the parser
Keyword(Kw::True) => Pattern::Literal(PatternLiteral::BoolPattern(true)),
Keyword(Kw::False) => Pattern::Literal(PatternLiteral::BoolPattern(false)),
StrLiteral(s) => Pattern::Literal(PatternLiteral::StringPattern(s)),
Keyword(Kw::True) => {
self.next();
Pattern::Literal(PatternLiteral::BoolPattern(true))
},
Keyword(Kw::False) => {
self.next();
Pattern::Literal(PatternLiteral::BoolPattern(false))
},
StrLiteral(s) => {
self.next();
Pattern::Literal(PatternLiteral::StringPattern(s))
},
DigitGroup(_) | HexLiteral(_) | BinNumberSigil | Period => self.signed_number_literal()?,
Operator(ref op) if **op == "-" => self.signed_number_literal()?,
Underscore => {
@ -1451,6 +1459,10 @@ fn a(x) {
])
}
}
#[test]
fn pattern_literals() {
parse_test! {
"if x is -1 then 1 else 2", AST(vec![
exprstatement!(
@ -1481,6 +1493,34 @@ fn a(x) {
])
}
parse_test! {
"if x is true then 1 else 2", AST(vec![
exprstatement!(
IfExpression {
discriminator: bx!(Discriminator::Simple(ex!(Value(rc!(x))))),
body: bx!(IfExpressionBody::SimplePatternMatch(
Pattern::Literal(PatternLiteral::BoolPattern(true)),
vec![exprstatement!(NatLiteral(1))],
Some(vec![exprstatement!(NatLiteral(2))]),
))
}
)
])
}
parse_test! {
"if x is \"gnosticism\" then 1 else 2", AST(vec![
exprstatement!(
IfExpression {
discriminator: bx!(Discriminator::Simple(ex!(Value(rc!(x))))),
body: bx!(IfExpressionBody::SimplePatternMatch(
Pattern::Literal(PatternLiteral::StringPattern(rc!(gnosticism))),
vec![exprstatement!(NatLiteral(1))],
Some(vec![exprstatement!(NatLiteral(2))]),
))
}
)
])
}
}
}