Packages

c

scala.tools.nsc.ast.parser.Scanners

SourceFileScanner

class SourceFileScanner extends Scanner

A scanner for a given source file not necessarily attached to a compilation unit. Useful for looking inside source files that aren not currently compiled to see what's there

Source
Scanners.scala
Linear Supertypes
Scanner, Scanners.ScannerCommon, ScannerData, TokenData, Scanners.CommonTokenData, CharArrayReader, CharArrayReaderData, AnyRef, Any
Known Subclasses
ParensAnalyzer, UnitScanner
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. SourceFileScanner
  2. Scanner
  3. ScannerCommon
  4. ScannerData
  5. TokenData
  6. CommonTokenData
  7. CharArrayReader
  8. CharArrayReaderData
  9. AnyRef
  10. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new SourceFileScanner(source: SourceFile)

Type Members

  1. class CharArrayLookaheadReader extends CharArrayReader
    Definition Classes
    CharArrayReader

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from SourceFileScanner to any2stringadd[SourceFileScanner] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (SourceFileScanner, B)
    Implicit
    This member is added by an implicit conversion from SourceFileScanner to ArrowAssoc[SourceFileScanner] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. 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.

    overridden in UnitScanners: apply brace patch if one exists for this offset return true if subsequent end of line handling should be suppressed.

    Definition Classes
    Scanner
  7. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  8. val base: Int

    the base of a number

    the base of a number

    Definition Classes
    TokenData
  9. val buf: Array[Char]
    Definition Classes
    SourceFileScanner → CharArrayReader
  10. val cbuf: collection.mutable.StringBuilder

    A character buffer for literals

    A character buffer for literals

    Definition Classes
    Scanner
  11. val ch: Char

    the last read character

    the last read character

    Definition Classes
    CharArrayReaderData
  12. 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

    Parse character literal if current character is followed by \', or follow with given op and return a symbol literal token

    Definition Classes
    Scanner
  13. val charOffset: Int

    The offset one past the last read character

    The offset one past the last read character

    Definition Classes
    CharArrayReaderData
  14. def charVal: Char

    Convert current strVal to char value

    Convert current strVal to char value

    Definition Classes
    Scanner
  15. def checkNoLetter(): Unit
    Definition Classes
    Scanner
  16. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  17. def copyFrom(sd: ScannerData): SourceFileScanner.this.type
    Definition Classes
    ScannerData
  18. def copyFrom(td: TokenData): SourceFileScanner.this.type
    Definition Classes
    TokenData
  19. def copyFrom(cd: CharArrayReaderData): SourceFileScanner.this.type
    Definition Classes
    CharArrayReaderData
  20. val decodeUni: Boolean
    Definition Classes
    SourceFileScanner → CharArrayReader
  21. def deprecationWarning(off: Scanners.Offset, msg: String, since: String): Unit
    Definition Classes
    SourceFileScanner → ScannerCommon
  22. def deprecationWarning(msg: String, since: String): Unit
    Definition Classes
    Scanner
  23. 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
    Scanner
  24. 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 or then, which are planned to become keywords in future versions of Scala.

    Attributes
    protected
    Definition Classes
    Scanner
  25. def ensuring(cond: (SourceFileScanner) ⇒ Boolean, msg: ⇒ Any): SourceFileScanner
    Implicit
    This member is added by an implicit conversion from SourceFileScanner to Ensuring[SourceFileScanner] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  26. def ensuring(cond: (SourceFileScanner) ⇒ Boolean): SourceFileScanner
    Implicit
    This member is added by an implicit conversion from SourceFileScanner to Ensuring[SourceFileScanner] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  27. def ensuring(cond: Boolean, msg: ⇒ Any): SourceFileScanner
    Implicit
    This member is added by an implicit conversion from SourceFileScanner to Ensuring[SourceFileScanner] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  28. def ensuring(cond: Boolean): SourceFileScanner
    Implicit
    This member is added by an implicit conversion from SourceFileScanner to Ensuring[SourceFileScanner] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  29. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  30. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  31. def error(off: Scanners.Offset, msg: String): Unit

    An error routine to call on bad unicode escapes \\uxxxx.

    An error routine to call on bad unicode escapes \\uxxxx.

    Definition Classes
    SourceFileScanner → ScannerCommon → CharArrayReader
  32. final def fetchToken(): Unit

    read next token, filling TokenData fields of Scanner.

    read next token, filling TokenData fields of Scanner.

    Attributes
    protected
    Definition Classes
    Scanner
  33. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  34. def floatVal: Double
    Definition Classes
    Scanner
  35. def floatVal(negated: Boolean): Double

    Convert current strVal, base to double value

    Convert current strVal, base to double value

    Definition Classes
    Scanner
  36. def flushDoc(): Global.DocComment
    Definition Classes
    Scanner
  37. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from SourceFileScanner to StringFormat[SourceFileScanner] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  38. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
  39. 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
    Definition Classes
    Scanner
  40. 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
    Definition Classes
    Scanner
  41. 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
    Definition Classes
    Scanner
  42. def hashCode(): Int
    Definition Classes
    AnyRef → Any
  43. def healBraces(): List[BracePatch]

    overridden in UnitScanners

    overridden in UnitScanners

    Definition Classes
    Scanner
  44. def inFirstOfStat(token: Scanners.Token): Boolean

    Can token start a statement?

    Can token start a statement?

    Definition Classes
    Scanner
  45. def inLastOfStat(token: Scanners.Token): Boolean

    Can token end a statement?

    Can token end a statement?

    Definition Classes
    Scanner
  46. def incompleteInputError(off: Scanners.Offset, msg: String): Unit
    Definition Classes
    SourceFileScanner → ScannerCommon
  47. def incompleteInputError(msg: String): Unit

    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

    Definition Classes
    Scanner
  48. def init(): Unit

    Initialization method: read first char, then first token

    Initialization method: read first char, then first token

    Definition Classes
    Scanner
  49. def intVal: Long
    Definition Classes
    Scanner
  50. 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.

    Definition Classes
    Scanner
  51. def invalidEscape(): Unit
    Attributes
    protected
    Definition Classes
    Scanner
  52. def isAtEnd: Boolean
    Definition Classes
    Scanner
  53. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  54. def isUnicodeEscape: Boolean

    Is last character a unicode escape \\uxxxx?

    Is last character a unicode escape \\uxxxx?

    Definition Classes
    CharArrayReader
  55. 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
  56. 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
  57. val lastUnicodeOffset: Int
    Attributes
    protected
    Definition Classes
    CharArrayReaderData
  58. val lineStartOffset: Int

    The start offset of the current line

    The start offset of the current line

    Definition Classes
    CharArrayReaderData
  59. 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
  60. val name: Global.TermName

    the name of an identifier

    the name of an identifier

    Definition Classes
    TokenData → CommonTokenData
  61. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  62. val next: TokenData

    we need one token lookahead and one token history

    we need one token lookahead and one token history

    Definition Classes
    ScannerData
  63. 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
  64. 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
  65. def nextToken(): Unit

    Produce next token, filling TokenData fields of Scanner.

    Produce next token, filling TokenData fields of Scanner.

    Definition Classes
    Scanner
  66. def nextTokenAllow(name: Global.Name): Unit

    Get next token, and allow the otherwise deprecated ident name

    Get next token, and allow the otherwise deprecated ident name

    Definition Classes
    Scanner
  67. final def notify(): Unit
    Definition Classes
    AnyRef
  68. final def notifyAll(): Unit
    Definition Classes
    AnyRef
  69. 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
  70. def parenBalance(token: Scanners.Token): Int

    overridden in UnitScanners

    overridden in UnitScanners

    Definition Classes
    Scanner
  71. val prev: TokenData
    Definition Classes
    ScannerData
  72. def putChar(c: Char): Unit

    append Unicode character to "cbuf" buffer

    append Unicode character to "cbuf" buffer

    Attributes
    protected
    Definition Classes
    Scanner
  73. def putCommentChar(): Unit
    Attributes
    protected
    Definition Classes
    Scanner
  74. def resume(lastCode: Scanners.Token): Unit
    Definition Classes
    Scanner
  75. 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).

    Definition Classes
    Scanner
  76. def skipBlockComment(): Unit
    Definition Classes
    Scanner
  77. def skipComment(): Boolean

    Definition Classes
    Scanner
  78. def skipDocComment(): Unit
    Definition Classes
    Scanner
  79. final def skipNestedComments(): Unit
    Definition Classes
    Scanner
    Annotations
    @tailrec()
  80. def skipToken(): Scanners.Offset

    read next token and return last offset

    read next token and return last offset

    Definition Classes
    Scanner
  81. val source: SourceFile
  82. val strVal: String

    the string value of a literal

    the string value of a literal

    Definition Classes
    TokenData
  83. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  84. def syntaxError(msg: String): Unit

    generate an error at the current token offset

    generate an error at the current token offset

    Definition Classes
    Scanner
  85. def syntaxError(off: Scanners.Offset, msg: String): Unit

    generate an error at the given offset

    generate an error at the given offset

    Definition Classes
    Scanner
  86. def toString(): String
    Definition Classes
    Scanner → AnyRef → Any
  87. val token: Scanners.Token

    the next token

    the next token

    Definition Classes
    TokenData → CommonTokenData
  88. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  89. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  90. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  91. def →[B](y: B): (SourceFileScanner, B)
    Implicit
    This member is added by an implicit conversion from SourceFileScanner to ArrowAssoc[SourceFileScanner] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from Scanner

Inherited from Scanners.ScannerCommon

Inherited from ScannerData

Inherited from TokenData

Inherited from Scanners.CommonTokenData

Inherited from CharArrayReader

Inherited from CharArrayReaderData

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from SourceFileScanner to any2stringadd[SourceFileScanner]

Inherited by implicit conversion StringFormat from SourceFileScanner to StringFormat[SourceFileScanner]

Inherited by implicit conversion Ensuring from SourceFileScanner to Ensuring[SourceFileScanner]

Inherited by implicit conversion ArrowAssoc from SourceFileScanner to ArrowAssoc[SourceFileScanner]

Ungrouped