scala.tools.nsc.ast.parser.Scanners
UnitScanner
Insert or delete a brace, if a patch exists for this offset
Insert or delete a brace, if a patch exists for this offset
the base of a number
the base of a number
A character buffer for literals
A character buffer for literals
the last read character
the last read character
Parse character literal if current character is followed by \', or follow with given op and return a symbol literal token
Parse character literal if current character is followed by \', or follow with given op and return a symbol literal token
The offset one past the last read character
The offset one past the last read character
Convert current strVal to char value
Convert current strVal to char value
To prevent doc comments attached to expressions from leaking out of scope onto the next documentable entity, they are discarded upon passing a right brace, bracket, or parenthesis.
To prevent doc comments attached to expressions from leaking out of scope onto the next documentable entity, they are discarded upon passing a right brace, bracket, or parenthesis.
Determines whether this scanner should emit identifier deprecation warnings, e.g.
Determines whether this scanner should emit identifier deprecation warnings,
e.g. when seeing macro or then, which are planned to become keywords in future versions of Scala.
An error routine to call on bad unicode escapes \\uxxxx.
An error routine to call on bad unicode escapes \\uxxxx.
read next token, filling TokenData fields of Scanner.
read next token, filling TokenData fields of Scanner.
Convert current strVal, base to double value
Convert current strVal, base to double value
read fractional part and exponent of floating point number if one is present.
read fractional part and exponent of floating point number if one is present.
copy current character into cbuf, interpreting any escape sequences, and advance to next character.
copy current character into cbuf, interpreting any escape sequences, and advance to next character.
Read a number into strVal and set base
Read a number into strVal and set base
overridden in UnitScanners
overridden in UnitScanners
Can token start a statement?
Can token start a statement?
Can token end a statement?
Can token end a statement?
signal an error where the input ended in the middle of a token
signal an error where the input ended in the middle of a token
Initialization method: read first char, then first token
Initialization method: read first char, then first token
Convert current strVal, base to long value This is tricky because of max negative value.
Convert current strVal, base to long value This is tricky because of max negative value.
Is last character a unicode escape \\uxxxx?
Is last character a unicode escape \\uxxxx?
The start offset of the line before the current one
The start offset of the line before the current one
the offset of the character following the token preceding this one
the offset of the character following the token preceding this one
The start offset of the current line
The start offset of the current line
A new reader that takes off at the current character position
A new reader that takes off at the current character position
the name of an identifier
the name of an identifier
we need one token lookahead and one token history
we need one token lookahead and one token history
Advance one character; reducing CR;LF pairs to just LF
Advance one character; reducing CR;LF pairs to just LF
Advance one character, leaving CR;LF pairs intact.
Advance one character, leaving CR;LF pairs intact. This is for use in multi-line strings, so there are no "potential line ends" here.
Produce next token, filling TokenData fields of Scanner.
Produce next token, filling TokenData fields of Scanner.
Get next token, and allow the otherwise deprecated ident name
Get next token, and allow the otherwise deprecated ident name
the offset of the first character of the current token
the offset of the first character of the current token
overridden in UnitScanners
overridden in UnitScanners
append Unicode character to "cbuf" buffer
append Unicode character to "cbuf" buffer
a stack of tokens which indicates whether line-ends can be statement separators also used for keeping track of nesting levels.
a stack of tokens which indicates whether line-ends can be statement separators
also used for keeping track of nesting levels.
We keep track of the closing symbol of a region. This can be
RPAREN if region starts with '('
RBRACKET if region starts with '['
RBRACE if region starts with '{'
ARROW if region starts with case'
STRINGLIT if region is a string interpolation expression starting with '${'
(the STRINGLIT appears twice in succession on the stack iff the
expression is a multiline string literal).
read next token and return last offset
read next token and return last offset
the string value of a literal
the string value of a literal
generate an error at the current token offset
generate an error at the current token offset
generate an error at the given offset
generate an error at the given offset
the next token
the next token
A scanner over a given compilation unit