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Add namespacing syntax.

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This commit is contained in:
Stephen Chung
2020-05-04 17:43:54 +08:00
parent 4bf07182dc
commit ead9716f6d
8 changed files with 271 additions and 125 deletions
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26
src/token.rs
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@@ -153,6 +153,7 @@ pub enum Token {
RightShift,
SemiColon,
Colon,
#[cfg(not(feature = "no_import"))]
DoubleColon,
Comma,
Period,
@@ -198,6 +199,12 @@ pub enum Token {
XOrAssign,
ModuloAssign,
PowerOfAssign,
#[cfg(not(feature = "no_import"))]
Import,
#[cfg(not(feature = "no_import"))]
Export,
#[cfg(not(feature = "no_import"))]
As,
LexError(Box<LexError>),
EOF,
}
@@ -231,6 +238,7 @@ impl Token {
Divide => "/",
SemiColon => ";",
Colon => ":",
#[cfg(not(feature = "no_import"))]
DoubleColon => "::",
Comma => ",",
Period => ".",
@@ -245,6 +253,8 @@ impl Token {
Else => "else",
While => "while",
Loop => "loop",
For => "for",
In => "in",
LessThan => "<",
GreaterThan => ">",
Bang => "!",
@@ -278,8 +288,12 @@ impl Token {
ModuloAssign => "%=",
PowerOf => "~",
PowerOfAssign => "~=",
For => "for",
In => "in",
#[cfg(not(feature = "no_import"))]
Import => "import",
#[cfg(not(feature = "no_import"))]
Export => "export",
#[cfg(not(feature = "no_import"))]
As => "as",
EOF => "{EOF}",
_ => panic!("operator should be match in outer scope"),
})
@@ -743,6 +757,13 @@ impl<'a> TokenIterator<'a> {
"for" => Token::For,
"in" => Token::In,
#[cfg(not(feature = "no_import"))]
"import" => Token::Import,
#[cfg(not(feature = "no_import"))]
"export" => Token::Export,
#[cfg(not(feature = "no_import"))]
"as" => Token::As,
#[cfg(not(feature = "no_function"))]
"fn" => Token::Fn,
@@ -897,6 +918,7 @@ impl<'a> TokenIterator<'a> {
}
('=', _) => return Some((Token::Equals, pos)),
#[cfg(not(feature = "no_import"))]
(':', ':') => {
self.eat_next();
return Some((Token::DoubleColon, pos));