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[SCM] master: Replace TabException with CompletionException; simplify.
- From: cagney at sourceware dot org
- To: frysk-cvs at sourceware dot org
- Date: 16 Nov 2007 17:07:19 -0000
- Subject: [SCM] master: Replace TabException with CompletionException; simplify.
- Reply-to: frysk at sourceware dot org
The branch, master has been updated
via c9bca79bdca4785a6ca8209aaab7ffcf8ea24d1c (commit)
from c0c08f0972f8bf58b60bad249421032b17e55f63 (commit)
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- Log -----------------------------------------------------------------
commit c9bca79bdca4785a6ca8209aaab7ffcf8ea24d1c
Author: Andrew Cagney <cagney@redhat.com>
Date: Fri Nov 16 12:03:25 2007 -0500
Replace TabException with CompletionException; simplify.
frysk-core/frysk/debuginfo/ChangeLog
2007-11-16 Andrew Cagney <cagney@redhat.com>
* DebugInfo.java (complete(DebugInfoFrame,String,int,List)): Catch
CompletionException instead of TabException. Do not attempt to
handle structures.
frysk-core/frysk/expr/ChangeLog
2007-11-16 Andrew Cagney <cagney@redhat.com>
* TabException.java: Delete.
* CExpr.g (bTabPressed): Delete.
(tab_expression): Delete.
(primary_expression): Fold into scope_expression; when IDENT_TAB
throw IncompleteIdentifierException.
(IDENT_TAB): Rename TAB.
* CompletionException.java: New.
* IncompleteTokenException.java: New.
* IncompleteIdentifierException.java: New.
* IncompleteMemberException.java: New.
-----------------------------------------------------------------------
Summary of changes:
frysk-core/frysk/debuginfo/ChangeLog | 6 ++
frysk-core/frysk/debuginfo/DebugInfo.java | 14 +---
frysk-core/frysk/expr/CExpr.g | 67 ++------------
frysk-core/frysk/expr/ChangeLog | 13 +++
.../frysk/expr/CompletionException.java | 41 ++++++---
.../frysk/expr/IncompleteIdentifierException.java | 18 ++--
.../frysk/expr/IncompleteMemberException.java | 18 ++--
.../frysk/expr/IncompleteTokenException.java | 18 ++--
frysk-core/frysk/expr/TabException.java | 93 --------------------
9 files changed, 81 insertions(+), 207 deletions(-)
copy frysk-sys/frysk/expunit/TerminationException.java => frysk-core/frysk/expr/CompletionException.java (76%)
copy frysk-sys/frysk/expunit/EofException.java => frysk-core/frysk/expr/IncompleteIdentifierException.java (90%)
copy frysk-sys/frysk/expunit/EofException.java => frysk-core/frysk/expr/IncompleteMemberException.java (90%)
copy frysk-sys/frysk/expunit/EofException.java => frysk-core/frysk/expr/IncompleteTokenException.java (90%)
delete mode 100644 frysk-core/frysk/expr/TabException.java
First 500 lines of diff:
diff --git a/frysk-core/frysk/debuginfo/ChangeLog b/frysk-core/frysk/debuginfo/ChangeLog
index 92762d1..ebf74ae 100644
--- a/frysk-core/frysk/debuginfo/ChangeLog
+++ b/frysk-core/frysk/debuginfo/ChangeLog
@@ -1,3 +1,9 @@
+2007-11-16 Andrew Cagney <cagney@redhat.com>
+
+ * DebugInfo.java (complete(DebugInfoFrame,String,int,List)): Catch
+ CompletionException instead of TabException. Do not attempt to
+ handle structures.
+
007-11-15 Sami Wagiaalla <swagiaal@redhat.com>
DwarfDie::getDataMemberLocation now throws DwAttributeNotFoundException
diff --git a/frysk-core/frysk/debuginfo/DebugInfo.java b/frysk-core/frysk/debuginfo/DebugInfo.java
index 34304af..cd17386 100644
--- a/frysk-core/frysk/debuginfo/DebugInfo.java
+++ b/frysk-core/frysk/debuginfo/DebugInfo.java
@@ -109,23 +109,17 @@ public class DebugInfo {
// FIXME: Why is this ignored?
} catch (antlr.TokenStreamException ignore) {
// FIXME: Why is this ignored?
- } catch (frysk.expr.TabException t) {
- token = t.getTabExpression().trim();
+ } catch (frysk.expr.CompletionException t) {
+ token = t.getText();
}
DwarfDie[] allDies = die.getScopes(pc - bias.bias);
List candidates_p = die.getScopeVarNames(allDies, token);
- boolean haveStruct = false;
- if (token.endsWith("."))
- haveStruct = true;
for (Iterator i = candidates_p.iterator(); i.hasNext();) {
- String sNext = (haveStruct ? "." : "") + (String) i.next();
+ String sNext = (String) i.next();
candidates.add(sNext);
}
-
- if (haveStruct)
- token = ".";
// XXX: This is a big kludge (but less of a kludge than
// .indexOf.
return buffer.lastIndexOf(token);
@@ -222,8 +216,6 @@ public class DebugInfo {
throw new RuntimeException(r);
} catch (antlr.TokenStreamException t) {
throw new RuntimeException(t);
- } catch (frysk.expr.TabException t) {
- throw new RuntimeException(t);
}
AST exprAST = parser.getAST();
diff --git a/frysk-core/frysk/expr/CExpr.g b/frysk-core/frysk/expr/CExpr.g
index 45f0a05..58a0dbc 100644
--- a/frysk-core/frysk/expr/CExpr.g
+++ b/frysk-core/frysk/expr/CExpr.g
@@ -90,20 +90,12 @@ options {
}
{
-/**
- * A member variable to keep track of TAB completions requests.
- * If this is true the normal course of action is to simply
- * bail out by throwing an exception
- */
- private boolean bTabPressed;
private int assign_stmt_RHS_found;
//private String sInputExpression;
protected CExprParser(TokenStream lexer, String sInput)
{
this(lexer);
- bTabPressed = false;
- //sInputExpression = sInput;
}
}
@@ -342,42 +334,17 @@ postfix_expression!
{ ## = #astPostExpr; }
;
+/**
+ * The TAB over here is not part of the C++ grammar.
+ * This enables auto-completion by allowing the user
+ * to press TAB whenever auto-completion is required
+ */
+
scope_expression
: identifier (SCOPE identifier)*
+ | IDENT_TAB { throw new IncompleteIdentifierException(#IDENT_TAB); }
| SCOPE identifier
| LPAREN! expressionList RPAREN!
- | tab_expression
- ;
-
-tab_expression
- { String sTabText; }
- // should subscript, component, call, post inc/dec be moved here?
- : post_expr1:primary_expression
- {
- if (bTabPressed) {
- // ??? Use antlr expressions instead of tree surgery.
- if (#post_expr1.getFirstChild() != null)
- if (#post_expr1.getFirstChild().getNextSibling() != null)
- sTabText = #post_expr1.getFirstChild().getNextSibling().getText();
- else
- sTabText = #post_expr1.getFirstChild().getText();
- else
- sTabText = #post_expr1.getText();
-
- throw new TabException(#post_expr1, sTabText);
- }
- }
- ;
-
-/**
- * The TAB over here is not part of the C++ grammar.
- * This enables auto-completion by allowing the user
- * to press TAB whenever auto-completion is required
- */
-primary_expression
- : TAB
- { bTabPressed = true;
- }
| constant
| "this"
;
@@ -409,22 +376,6 @@ constant
| "false"
;
-/***
- * TabException is raised everytime the TAB is pressed.
- * The parser thus bails out immediately and returns the
- * parse tree constructed so far.
- */
-/* ??? add (identifier | (TAB {bTabPressed = true;})) */
-/*DOT!
-( tb:TAB
- {
- bTabPressed = true;
- astPostExpr = #(#[MEMBER, "Member"], #astPostExpr, #tb);
- }
- | id_expr1:identifier
- { astPostExpr = #(#[MEMBER, "Member"], #astPostExpr, #id_expr1); }
-)*/
-
/*---------------------------------------------------------------------------
* The Lexer
*---------------------------------------------------------------------------*/
@@ -506,9 +457,9 @@ options {testLiterals = true;}
* but also when a TAB is hit after an incomplete identifier.
*/
-TAB
+IDENT_TAB
: '\t'
- | IDENT {$setType(IDENT);} ('\t' {$setType(TAB);})?
+ | IDENT {$setType(IDENT);} ('\t' {$setType(IDENT_TAB);})?
;
protected
diff --git a/frysk-core/frysk/expr/ChangeLog b/frysk-core/frysk/expr/ChangeLog
index 4a7ee21..1b9f728 100644
--- a/frysk-core/frysk/expr/ChangeLog
+++ b/frysk-core/frysk/expr/ChangeLog
@@ -1,3 +1,16 @@
+2007-11-16 Andrew Cagney <cagney@redhat.com>
+
+ * TabException.java: Delete.
+ * CExpr.g (bTabPressed): Delete.
+ (tab_expression): Delete.
+ (primary_expression): Fold into scope_expression; when IDENT_TAB
+ throw IncompleteIdentifierException.
+ (IDENT_TAB): Rename TAB.
+ * CompletionException.java: New.
+ * IncompleteTokenException.java: New.
+ * IncompleteIdentifierException.java: New.
+ * IncompleteMemberException.java: New.
+
2007-11-15 Andrew Cagney <cagney@redhat.com>
* TestArithmetics.java (eval(String)): Do not set setASTNodeClass.
diff --git a/frysk-sys/frysk/expunit/TerminationException.java b/frysk-core/frysk/expr/CompletionException.java
similarity index 76%
copy from frysk-sys/frysk/expunit/TerminationException.java
copy to frysk-core/frysk/expr/CompletionException.java
index 7c69c9f..19aa7a4 100644
--- a/frysk-sys/frysk/expunit/TerminationException.java
+++ b/frysk-core/frysk/expr/CompletionException.java
@@ -37,25 +37,36 @@
// version and license this file solely under the GPL without
// exception.
-package frysk.expunit;
+package frysk.expr;
-/**
- * Thrown an an end-of-file is encountered and nothing else matches.
+import antlr.collections.AST;
+
+/**
+ * An incomplete blah.
*/
-public class TerminationException
- extends RuntimeException
-{
+public class CompletionException extends RuntimeException {
static final long serialVersionUID = 1;
- static private String expecting (int expectedStatus)
- {
- if (expectedStatus >= 0)
- return " (expecting exit with status " + expectedStatus + ")";
- else
- return " (expecting kill with signal " + expectedStatus + ")";
+ private final AST ast;
+ CompletionException(AST ast) {
+ super("completing " + ast);
+ this.ast = ast;
+ }
+ /**
+ * Return the incomplete string (minus the tab).
+ */
+ public String getText() {
+ String text = ast.getText();
+ int tab = text.indexOf("\t");
+ if (tab < 0)
+ throw new RuntimeException("No tab found in " + ast);
+ return text.substring(0, tab);
+ }
+ // Useful?
+ public int getLine() {
+ return ast.getLine();
}
- TerminationException (int expectedStatus, String s)
- {
- super (s + expecting (expectedStatus));
+ public int getColumn() {
+ return ast.getColumn();
}
}
diff --git a/frysk-sys/frysk/expunit/EofException.java b/frysk-core/frysk/expr/IncompleteIdentifierException.java
similarity index 90%
copy from frysk-sys/frysk/expunit/EofException.java
copy to frysk-core/frysk/expr/IncompleteIdentifierException.java
index 19ec3fd..0d4fc82 100644
--- a/frysk-sys/frysk/expunit/EofException.java
+++ b/frysk-core/frysk/expr/IncompleteIdentifierException.java
@@ -37,18 +37,16 @@
// version and license this file solely under the GPL without
// exception.
-package frysk.expunit;
+package frysk.expr;
-/**
- * Thrown an an end-of-file is encountered and nothing else matches.
- */
+import antlr.collections.AST;
-public class EofException
- extends RuntimeException
-{
+/**
+ * An incomplete identifier; e.g.: foo<tab>
+ */
+class IncompleteIdentifierException extends CompletionException {
static final long serialVersionUID = 1;
- EofException ()
- {
- super ("End-of-file encountered");
+ IncompleteIdentifierException(AST identifier) {
+ super(identifier);
}
}
diff --git a/frysk-sys/frysk/expunit/EofException.java b/frysk-core/frysk/expr/IncompleteMemberException.java
similarity index 90%
copy from frysk-sys/frysk/expunit/EofException.java
copy to frysk-core/frysk/expr/IncompleteMemberException.java
index 19ec3fd..fc093d5 100644
--- a/frysk-sys/frysk/expunit/EofException.java
+++ b/frysk-core/frysk/expr/IncompleteMemberException.java
@@ -37,18 +37,16 @@
// version and license this file solely under the GPL without
// exception.
-package frysk.expunit;
+package frysk.expr;
-/**
- * Thrown an an end-of-file is encountered and nothing else matches.
- */
+import antlr.collections.AST;
-public class EofException
- extends RuntimeException
-{
+/**
+ * An incomplete field member; e.g.: structure.field<tab>
+ */
+class IncompleteMemberException extends CompletionException {
static final long serialVersionUID = 1;
- EofException ()
- {
- super ("End-of-file encountered");
+ IncompleteMemberException(AST member) {
+ super(member);
}
}
diff --git a/frysk-sys/frysk/expunit/EofException.java b/frysk-core/frysk/expr/IncompleteTokenException.java
similarity index 90%
copy from frysk-sys/frysk/expunit/EofException.java
copy to frysk-core/frysk/expr/IncompleteTokenException.java
index 19ec3fd..9c2a1cb 100644
--- a/frysk-sys/frysk/expunit/EofException.java
+++ b/frysk-core/frysk/expr/IncompleteTokenException.java
@@ -37,18 +37,16 @@
// version and license this file solely under the GPL without
// exception.
-package frysk.expunit;
+package frysk.expr;
-/**
- * Thrown an an end-of-file is encountered and nothing else matches.
- */
+import antlr.collections.AST;
-public class EofException
- extends RuntimeException
-{
+/**
+ * An incomplete token; e.g.: :<tab>
+ */
+class IncompleteTokenException extends CompletionException {
static final long serialVersionUID = 1;
- EofException ()
- {
- super ("End-of-file encountered");
+ IncompleteTokenException(AST token) {
+ super(token);
}
}
diff --git a/frysk-core/frysk/expr/TabException.java b/frysk-core/frysk/expr/TabException.java
deleted file mode 100644
index 2552f7d..0000000
--- a/frysk-core/frysk/expr/TabException.java
+++ /dev/null
@@ -1,93 +0,0 @@
-// This file is part of the program FRYSK.
-//
-// Copyright 2005, 2007, Red Hat Inc.
-// Copyright 2006 IBM Corp.
-//
-// FRYSK is free software; you can redistribute it and/or modify it
-// under the terms of the GNU General Public License as published by
-// the Free Software Foundation; version 2 of the License.
-//
-// FRYSK is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with FRYSK; if not, write to the Free Software Foundation,
-// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
-//
-// In addition, as a special exception, Red Hat, Inc. gives You the
-// additional right to link the code of FRYSK with code not covered
-// under the GNU General Public License ("Non-GPL Code") and to
-// distribute linked combinations including the two, subject to the
-// limitations in this paragraph. Non-GPL Code permitted under this
-// exception must only link to the code of FRYSK through those well
-// defined interfaces identified in the file named EXCEPTION found in
-// the source code files (the "Approved Interfaces"). The files of
-// Non-GPL Code may instantiate templates or use macros or inline
-// functions from the Approved Interfaces without causing the
-// resulting work to be covered by the GNU General Public
-// License. Only Red Hat, Inc. may make changes or additions to the
-// list of Approved Interfaces. You must obey the GNU General Public
-// License in all respects for all of the FRYSK code and other code
-// used in conjunction with FRYSK except the Non-GPL Code covered by
-// this exception. If you modify this file, you may extend this
-// exception to your version of the file, but you are not obligated to
-// do so. If you do not wish to provide this exception without
-// modification, you must delete this exception statement from your
-// version and license this file solely under the GPL without
-// exception.
-
-package frysk.expr;
-
-import antlr.collections.AST;
-
-/**
- * An that should be thrown when a <TAB> key is pressed.
- *
- * The constructor takes an AST (abstract syntax tree) as
- * argument. This is the the partial AST generated thus far by the
- * parser.
- */
-
-public class TabException extends RuntimeException
-{
- static final long serialVersionUID = 1;
-
- private AST astExpression;
- private String sTabExpression;
-
- /**
- * The constructor takes an AST (abstract syntax tree) as
- * argument. This is the the partial AST generated thus far by the
- * parser. The second argument is the incomplete identifier that
- * the user may have typed in. It may or may not be null
- */
- public TabException(AST astPartial, String sTabExpression) {
- astExpression = astPartial;
- this.sTabExpression = sTabExpression;
- }
-
- /**
- * As the name suggests, this function returns the partial AST
- * associated with this Exception
- */
- public AST getAst() {
- return astExpression;
- }
-
- /**
- * Return the partial identifier that the user may have keyed in
- */
- public String getTabExpression() {
- return sTabExpression;
- }
-
-
- /**
- * Returns a lisp style representation of the AST
- */
- public String toString() {
- return astExpression.toStringList();
- }
-}
hooks/post-receive
--
frysk system monitor/debugger