The Inbox: Compiler-ct.449.mcz

A new version of Compiler was added to project The Inbox:
http://source.squeak.org/inbox/Compiler-ct.449.mcz

==================== Summary ====================

Name: Compiler-ct.449
Author: ct
Time: 24 October 2020, 12:12:47.879256 am
UUID: f4dcd413-ed53-bf47-8762-a0e1c23f7a7f
Ancestors: Compiler-tobe.448

Redesigns SyntaxErrorNotification to hold a CompilationCue instead of 'inClass' and 'code', in orderto allow for recompilation of syntax errors where other compilation parameters have been specified, e.g. context or environment.

For example, the following syntax error could not be resolved before this patch:

        Compiler new
                evaluate: 'aCue yourself:'
                in: thisContext sender
                to: thisContext sender receiver.

=============== Diff against Compiler-tobe.448 ===============

Item was added:
+ ----- Method: CompilationCue>>source: (in category 'accessing') -----
+ source: aString
+
+ source := aString.
+ sourceStream := source readStream.!

Item was changed:
  ----- Method: Parser>>notify:at: (in category 'error handling') -----
  notify: string at: location
  | messageText |
  messageText := '"' , string , ' ->"'.
  cue requestor isNil
  ifTrue: [
  | notification |
  (encoder == self or: [encoder isNil])
  ifTrue: [^ self fail "failure setting up syntax error"].
  (notification := SyntaxErrorNotification
+ cue: (cue copy
+ source: (source contents asText
+ copyReplaceFrom: location
+ to: location - 1
+ with: messageText);
+ yourself)
- inClass: encoder classEncoding
- withCode: (source contents asText
- copyReplaceFrom: location
- to: location - 1
- with: messageText)
  doitFlag: doitFlag
  errorMessage: string
  location: location) signal.
  notification tryNewSourceIfAvailable]
  ifFalse: [cue requestor
  notify: messageText
  at: location
  in: source].
  ^ self fail!

Item was changed:
  Error subclass: #SyntaxErrorNotification
+ instanceVariableNames: 'cue doitFlag errorMessage location newSource'
- instanceVariableNames: 'inClass code doitFlag errorMessage location newSource'
  classVariableNames: ''
  poolDictionaries: ''
  category: 'Compiler-Exceptions'!
 
+ !SyntaxErrorNotification commentStamp: 'ct 10/24/2020 00:01' prior: 0!
- !SyntaxErrorNotification commentStamp: 'nice 9/18/2013 22:16' prior: 0!
  A SyntaxErrorNotification is an Exception occuring when compiling a Smalltalk source code with incorrect syntax.
  Note that in interactive mode, this exception is not raised because the Compiler will interact directly with source code editor.
  The defaultAction is to raise a SyntaxError pop up window so as to enable interactive handling even in non interactive mode.
 
  Instance Variables
+ cue: <CompilationCue>
- category: <String | nil>
- code: <String | Text | Stream>
  doitFlag: <Boolean>
  errorMessage: <String>
- inClass: <Behavior>
  location: <Integer>
  newSource: <String | Text | Stream | nil>
 
+ cue
+ - the cue for compilation, including receiver class, optional context, and original source code
- category
- - the category in which the method will be classified
 
- code
- - the source code to be compiled or evaluated
-
  doitFlag
  - true if this is a doIt (code to evaluate), false if this is a method (code of a method to be compiled)
 
  errorMessage
  - contains information about the syntax error
 
- inClass
- - target class in which to compile the method
-
  location
  - position in the source code where the syntax error occured
 
  newSource
+ - eventually hold a source code replacement typically passed by the SyntaxError window!
- - eventually hold a source code replacement typically passed by the SyntaxError window
- !

Item was added:
+ ----- Method: SyntaxErrorNotification class>>cue:doitFlag:errorMessage:location: (in category 'instance creation') -----
+ cue: aCue doitFlag: doitFlag errorMessage: errorString location: location
+
+ ^ self new
+ setCue: aCue
+ doitFlag: doitFlag
+ errorMessage: errorString
+ location: location!

Item was changed:
+ ----- Method: SyntaxErrorNotification class>>inClass:withCode:doitFlag:errorMessage:location: (in category 'instance creation') -----
- ----- Method: SyntaxErrorNotification class>>inClass:withCode:doitFlag:errorMessage:location: (in category 'exceptionInstantiator') -----
  inClass: aClass withCode: codeString doitFlag: doitFlag errorMessage: errorString location: location
+
+ self deprecated: 'ct: Use #cue:doitFlag:errorMessage:location:'.
+ ^ self
+ cue: (CompilationCue source: codeString class: aClass requestor: nil)
- ^self new
- setClass: aClass
- code: codeString
  doitFlag: doitFlag
  errorMessage: errorString
  location: location!

Item was added:
+ ----- Method: SyntaxErrorNotification>>context (in category 'accessing') -----
+ context
+
+ ^ cue context!

Item was changed:
  ----- Method: SyntaxErrorNotification>>errorClass (in category 'accessing') -----
  errorClass
+
+ ^ cue getClass!
- ^inClass!

Item was changed:
  ----- Method: SyntaxErrorNotification>>errorCode (in category 'accessing') -----
  errorCode
+
+ ^ cue source!
- ^code!

Item was changed:
  ----- Method: SyntaxErrorNotification>>messageText (in category 'accessing') -----
  messageText
  ^ super messageText
+ ifEmpty: [messageText := self errorCode]!
- ifEmpty: [messageText := code]!

Item was changed:
  ----- Method: SyntaxErrorNotification>>reparse:notifying:ifFail: (in category 'accessing') -----
  reparse: aString notifying: aController ifFail: failBlock
  "Try to parse if aString has correct syntax, but do not evaluate/install any code.
  In case of incorrect syntax, execute failBlock and let a Compiler interact with the requestor.
  In case of correct syntax, set newSource."
+
+ (doitFlag ifTrue: [nil class] ifFalse: [self errorClass]) newCompiler
+ compileCue: (cue copy
+ source: aString;
+ requestor: aController;
+ yourself)
+ noPattern: doitFlag
+ ifFail: failBlock.
+ newSource := aString.!
- doitFlag
- ifTrue: [nil class newCompiler compileNoPattern: aString in: nil class notifying: aController ifFail: failBlock]
- ifFalse: [inClass newCompiler compile: aString in: inClass notifying: aController ifFail: failBlock].
- newSource := aString!

Item was removed:
- ----- Method: SyntaxErrorNotification>>setClass:code:doitFlag:errorMessage:location: (in category 'accessing') -----
- setClass: aClass code: codeString doitFlag: aBoolean errorMessage: errorString location: anInteger
- inClass := aClass.
- code := codeString.
- doitFlag := aBoolean.
- errorMessage := errorString.
- location := anInteger!

Item was added:
+ ----- Method: SyntaxErrorNotification>>setCue:doitFlag:errorMessage:location: (in category 'initialize-release') -----
+ setCue: aCue doitFlag: aBoolean errorMessage: errorString location: anInteger
+
+ cue := aCue.
+ doitFlag := aBoolean.
+ errorMessage := errorString.
+ location := anInteger!