abstract class Scanner extends CharArrayReader with TokenData with ScannerData with ScannerCommon with DocScanner
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- Scanner
- DocScanner
- ScannerCommon
- ScannerData
- TokenData
- CommonTokenData
- CharArrayReader
- CharArrayReaderData
- AnyRef
- Any
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
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Instance Constructors
- new Scanner()
Type Members
-
class
CharArrayLookaheadReader extends CharArrayReader
- Definition Classes
- CharArrayReader
Abstract Value Members
-
abstract
val
buf: Array[Char]
- Definition Classes
- CharArrayReader
-
abstract
def
deprecationWarning(off: Scanners.Offset, msg: String, since: String): Unit
- Definition Classes
- ScannerCommon
-
abstract
def
error(off: Scanners.Offset, msg: String): Unit
- Definition Classes
- ScannerCommon
-
abstract
def
incompleteInputError(off: Scanners.Offset, msg: String): Unit
- Definition Classes
- ScannerCommon
Concrete Value Members
-
final
def
!=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
##(): Int
- Definition Classes
- AnyRef → Any
- def +(other: String): String
- def ->[B](y: B): (Scanner, B)
-
final
def
==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
def
applyBracePatch(): Boolean
overridden in UnitScanners: apply brace patch if one exists for this offset return true if subsequent end of line handling should be suppressed.
-
final
def
asInstanceOf[T0]: T0
- Definition Classes
- Any
-
val
base: Int
the base of a number
the base of a number
- Definition Classes
- TokenData
-
def
beginDocComment(prefix: String): Unit
- Attributes
- protected
- Definition Classes
- DocScanner
-
val
cbuf: collection.mutable.StringBuilder
A character buffer for literals
-
val
ch: Char
the last read character
the last read character
- Definition Classes
- CharArrayReaderData
-
def
charLitOr(op: () ⇒ Unit): Unit
Parse character literal if current character is followed by \', or follow with given op and return a symbol literal token
-
val
charOffset: Int
The offset one past the last read character
The offset one past the last read character
- Definition Classes
- CharArrayReaderData
-
def
charVal: Char
Convert current strVal to char value
- def checkNoLetter(): Unit
-
def
clone(): AnyRef
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @native() @throws( ... )
-
def
copyFrom(sd: ScannerData): Scanner.this.type
- Definition Classes
- ScannerData
-
def
copyFrom(td: TokenData): Scanner.this.type
- Definition Classes
- TokenData
-
def
copyFrom(cd: CharArrayReaderData): Scanner.this.type
- Definition Classes
- CharArrayReaderData
-
def
decodeUni: Boolean
- Definition Classes
- CharArrayReader
- def deprecationWarning(msg: String, since: String): Unit
-
def
discardDocBuffer(): Unit
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.
- Definition Classes
- DocScanner
- def doubleVal: Double
-
def
doubleVal(negated: Boolean): Double
Convert current strVal, base to double value.
-
def
emitIdentifierDeprecationWarnings: Boolean
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
orthen
, which are planned to become keywords in future versions of Scala.- Attributes
- protected
- def ensuring(cond: (Scanner) ⇒ Boolean, msg: ⇒ Any): Scanner
- def ensuring(cond: (Scanner) ⇒ Boolean): Scanner
- def ensuring(cond: Boolean, msg: ⇒ Any): Scanner
- def ensuring(cond: Boolean): Scanner
-
final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
def
equals(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
fetchToken(): Unit
read next token, filling TokenData fields of Scanner.
read next token, filling TokenData fields of Scanner.
- Attributes
- protected
-
def
finalize(): Unit
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( classOf[java.lang.Throwable] )
-
def
finishDocComment(): Unit
- Attributes
- protected
- Definition Classes
- DocScanner
- def floatVal: Float
-
def
floatVal(negated: Boolean): Float
Convert current strVal, base to float value.
-
def
flushDoc(): Global.DocComment
- Definition Classes
- DocScanner
- def formatted(fmtstr: String): String
-
final
def
getClass(): Class[_]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
def
getFraction(): Unit
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.
- Attributes
- protected
-
def
getLitChar(): Unit
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.
- Attributes
- protected
-
def
getNumber(): Unit
Read a number into strVal.
Read a number into strVal.
The
base
can be 8, 10 or 16, where base 8 flags a leading zero. For ints, base 8 is legal only for the case of exactly one zero.- Attributes
- protected
-
def
hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
def
healBraces(): List[BracePatch]
overridden in UnitScanners
-
def
inFirstOfStat(token: Scanners.Token): Boolean
Can token start a statement?
-
def
inLastOfStat(token: Scanners.Token): Boolean
Can token end a statement?
-
def
incompleteInputError(msg: String): Unit
signal an error where the input ended in the middle of a token
-
def
init(): Unit
Initialization method: read first char, then first token
- def intVal: Long
-
def
intVal(negated: Boolean): Long
Convert current strVal, base to long value.
Convert current strVal, base to long value. This is tricky because of max negative value.
Conversions in base 10 and 16 are supported. As a permanent migration path, attempts to write base 8 literals except
0
emit a verbose error. -
def
invalidEscape(): Unit
- Attributes
- protected
- def isAtEnd: Boolean
-
final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
-
def
isUnicodeEscape: Boolean
Is last character a unicode escape \\uxxxx?
Is last character a unicode escape \\uxxxx?
- Definition Classes
- CharArrayReader
-
val
lastLineStartOffset: Int
The start offset of the line before the current one
The start offset of the line before the current one
- Definition Classes
- CharArrayReaderData
-
val
lastOffset: Scanners.Offset
the offset of the character following the token preceding this one
the offset of the character following the token preceding this one
- Definition Classes
- TokenData
-
val
lastUnicodeOffset: Int
- Attributes
- protected
- Definition Classes
- CharArrayReaderData
-
val
lineStartOffset: Int
The start offset of the current line
The start offset of the current line
- Definition Classes
- CharArrayReaderData
-
def
lookaheadReader: CharArrayLookaheadReader
A new reader that takes off at the current character position
A new reader that takes off at the current character position
- Definition Classes
- CharArrayReader
-
val
name: Global.TermName
the name of an identifier
the name of an identifier
- Definition Classes
- TokenData → CommonTokenData
-
final
def
ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
val
next: TokenData
we need one token lookahead and one token history
we need one token lookahead and one token history
- Definition Classes
- ScannerData
-
final
def
nextChar(): Unit
Advance one character; reducing CR;LF pairs to just LF
Advance one character; reducing CR;LF pairs to just LF
- Definition Classes
- CharArrayReader
-
final
def
nextRawChar(): Unit
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.
- Definition Classes
- CharArrayReader
-
def
nextToken(): Unit
Produce next token, filling TokenData fields of Scanner.
-
def
nextTokenAllow(name: Global.Name): Unit
Get next token, and allow the otherwise deprecated ident
name
-
final
def
notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
-
final
def
notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
-
val
offset: Scanners.Offset
the offset of the first character of the current token
the offset of the first character of the current token
- Definition Classes
- TokenData
-
def
parenBalance(token: Scanners.Token): Int
overridden in UnitScanners
-
val
prev: TokenData
- Definition Classes
- ScannerData
-
def
processCommentChar(): Unit
- Attributes
- protected
- Definition Classes
- DocScanner
-
def
putChar(c: Char): Unit
append Unicode character to "cbuf" buffer
append Unicode character to "cbuf" buffer
- Attributes
- protected
-
final
def
putCommentChar(): Unit
- Attributes
- protected
-
def
registerDocComment(raw: String, pos: Global.Position): Unit
- Definition Classes
- DocScanner
- def resume(lastCode: Scanners.Token): Unit
-
var
sepRegions: List[Scanners.Token]
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).
- final def skipComment(): Boolean
-
final
def
skipNestedComments(): Unit
- Annotations
- @tailrec()
-
def
skipToken(): Scanners.Offset
read next token and return last offset
-
val
strVal: String
the string value of a literal
the string value of a literal
- Definition Classes
- TokenData
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
-
def
syntaxError(msg: String): Unit
generate an error at the current token offset
-
def
syntaxError(off: Scanners.Offset, msg: String): Unit
generate an error at the given offset
-
def
toString(): String
- Definition Classes
- Scanner → AnyRef → Any
-
val
token: Scanners.Token
the next token
the next token
- Definition Classes
- TokenData → CommonTokenData
-
final
def
wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @throws( ... )
- def →[B](y: B): (Scanner, B)
The Scala compiler and reflection APIs.