Class: SourceFileLoader

• Inheritance
• Description
• Class protocol
  • instance creation
• Instance protocol
  • accessing
  • compiler queries
  • directive processing
  • error handling
  • private-accessing
• Private classes

Inheritance:

   Object
   |
   +--SourceFileLoader

Package:

stx:libcomp

Category:

System-Compiler

Version:

rev: 1.49 date: 2021/11/29 18:03:18

user: cg

file: SourceFileLoader.st directory: libcomp

module: stx stc-classLibrary: libcomp

Description:

Instances of this class are created temporary during fileIn.
They get notified about any errors. Currently, all we
do here is to output the error on the Transcript;
eventually, we will open a box showing the position of the error.

Also, information found in scanned compiler directives is remembered
here, for later queries (this is required, since the fileIn mechanism
creates new parsers for every chunk - someone has to remember this
information across chunks ...).

copyright
COPYRIGHT (c) 1995 by Claus Gittinger
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

Class protocol:

 on: aStream

Instance protocol:

 reader: something

to fileIn gravel-Smalltalk sources

 source: aString

this is optionally sent by the chunk reader,
to pass a single chunks source before its evaluated.
This allows me to show the erroneous code in a TextView
(but this is not yet implemented)

 autoDefineVariables

 currentNameSpace

sent by the compiler to ask for the current nameSpace.
This is still to be finished ...

Usage example(s):

currentNameSpace := Smalltalk defaultNameSpace

 isWorkspace

back-query from the compiler to ask if this is an interactive view
(for error feedback)

 packageToInstall

sent by the compiler to ask in which package new methods/classes
are to be installed.
This is still to be finished ...

 usedNameSpaces

sent by the compiler to ask for a list of used nameSpaces.
This is still to be finished ...

 wantChangeLog

sent by the compiler to ask if a changeLog entry should
be written. Return false here, since SourceFileLaoders are
used to read existing source files

 addUsedSpace: aNameSpace

sent by the compiler, whenever it encounters a 'Uses:'
directive; collect used namespaces here, for later namespace
queries

 addUsedSpaces: aNameSpaceList

sent by the compiler, whenever it encounters a 'Uses:'
directive; collect used namespaces here, for later namespace
queries

 requirePackage: packageName

sent by the compiler, whenever it encounters a 'Prerequisites:'
directive. For now, this is ignored.
Will use the requirePackage stuff in Smalltalk, when finished.

 setNameSpace: aNameSpaceName

sent by the compiler, whenever it encounters a 'NameSpace:'
directive. Remember the namespace for further variable resolving
and nameSpace queries.

 setPackage: packageName

sent by the compiler, whenever it encounters a 'Package:'
directive. Remember the package for further queries.

 setSyntax: aSyntaxName

sent by the compiler, whenever it encounters a 'Syntax:' directive.
Remember the syntax for further parsing.

 correctableError: aMessage position: position to: endPos from: aCompiler

correctable error notification during fileIn.
This is sent by the compiler/evaluator if it detects undefined variables-errors.

 correctableSelectorWarning: aMessage position: position to: endPos from: aCompiler

correctable error notification during fileIn.

 correctableWarning: aMessage position: position to: endPos from: aCompiler

correctable error notification during fileIn.
This is sent by the compiler/evaluator if it detects undefined variables-errors.

 error: aMessage position: position to: endPos from: aCompiler

error notification during fileIn.
This is sent by the compiler/evaluator if it detects errors.

 insertAndSelect: aString at: aCharacterPosition

ST-80 compatible error notification during fileIn.

 showWherePosition: position to: endPos from: aCompiler

show more details about the errors/warnings position.

 unusedVariableWarning: aString position: relPos to: relEndPos from: aCompiler

compiler notifies us of a (or some) unused variables;
hilight the error (relPos to relEndPos) and show a Box asking for continue/correct/abort;
this method should return true to the compiler if user wants the error
to be corrected; false otherwise

 warning: aMessage position: position to: endPos from: aCompiler

warning notification during fileIn - ignore it.
This is sent by the compiler/evaluator if it detects errors.

 reader: aStream wantChangeLog: aBoolean

Private classes:

    SourceFileReader