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* [SCM] master: Re-implement expression completion using ExpressionFactory.complete(...).
@ 2007-11-17 19:48 cagney
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From: cagney @ 2007-11-17 19:48 UTC (permalink / raw)
To: frysk-cvs
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- Log -----------------------------------------------------------------
commit 5c771ea53ce8b3c98d3c47d6cc591746fb6d80e4
Author: Andrew Cagney <cagney@redhat.com>
Date: Sat Nov 17 14:41:52 2007 -0500
Re-implement expression completion using ExpressionFactory.complete(...).
frysk-core/frysk/debuginfo/ChangeLog
2007-11-17 Andrew Cagney <cagney@redhat.com>
* DebugInfo.java (complete(DebugInfoFrame,String,int,List)): Delete.
frysk-core/frysk/hpd/ChangeLog
2007-11-17 Andrew Cagney <cagney@redhat.com>
* CompletionFactory.java (completeExpression(CLI,Input,int,List)):
Re-implement using
ExpressionFactory.complete(ExprSymTab,String,List) and
ObjectDeclarationSearchEngine.
commit 6f7d47da1af6ab5643be544dff512580aef96314
Author: Andrew Cagney <cagney@redhat.com>
Date: Sat Nov 17 14:06:09 2007 -0500
Add ExprSymTab.complete(String,List); test.
frysk-core/frysk/debuginfo/ChangeLog
2007-11-17 Andrew Cagney <cagney@redhat.com>
* ObjectDeclarationSearchEngine.java (complete(String,List)): New.
frysk-core/frysk/expr/ChangeLog
2007-11-17 Andrew Cagney <cagney@redhat.com>
* CompletionException.java (getMessage()): New.
* TestCompletion.java (testOneCompletion()): New.
(testTwoCompletions()): New.
(testNoCompletions()): Replace testNothingToDo().
(complete(String,String[],int)): New.
* DetailedAST.java: New.
* ExprSymTab.java (complete(String,List)): New.
* ScratchSymTab.java (complete(String,List)): New.
commit fe41b1056315bbf0c87fbea81895c89784a01c36
Author: Andrew Cagney <cagney@redhat.com>
Date: Fri Nov 16 13:16:53 2007 -0500
Add ExpressionFactory and TestCompletion to frysk.expr.
2007-11-16 Andrew Cagney <cagney@redhat.com>
* TestCompletion.java: New.
* ExpressionFactory.java: New.
-----------------------------------------------------------------------
Summary of changes:
frysk-core/frysk/debuginfo/ChangeLog | 6 ++
frysk-core/frysk/debuginfo/DebugInfo.java | 46 ---------------
.../debuginfo/ObjectDeclarationSearchEngine.java | 24 +++++++-
frysk-core/frysk/expr/ChangeLog | 14 +++++
frysk-core/frysk/expr/CompletionException.java | 10 +++-
.../{CompletionException.java => DetailedAST.java} | 39 ++++++-------
frysk-core/frysk/expr/ExprSymTab.java | 20 ++++++-
...TestArithmetics.java => ExpressionFactory.java} | 51 ++++++++++-------
frysk-core/frysk/expr/ScratchSymTab.java | 6 ++-
.../TestCompletion.java} | 62 ++++++++++----------
frysk-core/frysk/expr/TestbedSymTab.java | 14 ++++-
frysk-core/frysk/hpd/ChangeLog | 5 ++
frysk-core/frysk/hpd/CompletionFactory.java | 11 ++--
13 files changed, 177 insertions(+), 131 deletions(-)
copy frysk-core/frysk/expr/{CompletionException.java => DetailedAST.java} (80%)
copy frysk-core/frysk/expr/{TestArithmetics.java => ExpressionFactory.java} (72%)
copy frysk-core/frysk/{isa/TestRegisters.java => expr/TestCompletion.java} (61%)
First 500 lines of diff:
diff --git a/frysk-core/frysk/debuginfo/ChangeLog b/frysk-core/frysk/debuginfo/ChangeLog
index ebf74ae..b307901 100644
--- a/frysk-core/frysk/debuginfo/ChangeLog
+++ b/frysk-core/frysk/debuginfo/ChangeLog
@@ -1,3 +1,9 @@
+2007-11-17 Andrew Cagney <cagney@redhat.com>
+
+ * DebugInfo.java (complete(DebugInfoFrame,String,int,List)): Delete.
+
+ * ObjectDeclarationSearchEngine.java (complete(String,List)): New.
+
2007-11-16 Andrew Cagney <cagney@redhat.com>
* DebugInfo.java (complete(DebugInfoFrame,String,int,List)): Catch
diff --git a/frysk-core/frysk/debuginfo/DebugInfo.java b/frysk-core/frysk/debuginfo/DebugInfo.java
index cd17386..9bc2dab 100644
--- a/frysk-core/frysk/debuginfo/DebugInfo.java
+++ b/frysk-core/frysk/debuginfo/DebugInfo.java
@@ -48,8 +48,6 @@ import frysk.proc.Proc;
import frysk.value.Type;
import frysk.value.Value;
import java.io.StringReader;
-import java.util.Iterator;
-import java.util.List;
import lib.dwfl.Dwarf;
import lib.dwfl.DwarfCommand;
import lib.dwfl.DwarfDie;
@@ -81,50 +79,6 @@ public class DebugInfo {
}
}
-
- /**
- * Handle ConsoleReader Completor
- *
- * @param buffer Input buffer.
- * @param cursor Position of TAB in buffer.
- * @param candidates List that may complete token.
- * @return cursor position in buffer
- */
- public int complete (DebugInfoFrame frame, String buffer, int cursor, List candidates) {
- long pc = frame.getAdjustedAddress();
- Dwfl dwfl = DwflCache.getDwfl(frame.getTask());
- DwflDieBias bias = dwfl.getCompilationUnit(pc);
- DwarfDie die = bias.die;
- String token = "";
-
- String sInput = buffer.substring(0, cursor) + '\t' + (cursor < buffer.length()
- ? buffer.substring(cursor) : "");
-
- sInput += (char)3;
- CExprLexer lexer = new CExprLexer(new StringReader(sInput));
- CExprParser parser = new CExprParser(lexer);
- try {
- parser.start();
- } catch (antlr.RecognitionException ignore) {
- // FIXME: Why is this ignored?
- } catch (antlr.TokenStreamException ignore) {
- // FIXME: Why is this ignored?
- } catch (frysk.expr.CompletionException t) {
- token = t.getText();
- }
-
- DwarfDie[] allDies = die.getScopes(pc - bias.bias);
- List candidates_p = die.getScopeVarNames(allDies, token);
-
- for (Iterator i = candidates_p.iterator(); i.hasNext();) {
- String sNext = (String) i.next();
- candidates.add(sNext);
- }
- // XXX: This is a big kludge (but less of a kludge than
- // .indexOf.
- return buffer.lastIndexOf(token);
- }
-
/**
* Get the DwarfDie for a function symbol
*/
diff --git a/frysk-core/frysk/debuginfo/ObjectDeclarationSearchEngine.java b/frysk-core/frysk/debuginfo/ObjectDeclarationSearchEngine.java
index 9434a7f..62864b0 100644
--- a/frysk-core/frysk/debuginfo/ObjectDeclarationSearchEngine.java
+++ b/frysk-core/frysk/debuginfo/ObjectDeclarationSearchEngine.java
@@ -39,12 +39,15 @@
package frysk.debuginfo;
+import frysk.dwfl.DwflCache;
+import java.util.Iterator;
import inua.eio.ByteBuffer;
import inua.eio.ByteOrder;
-
+import lib.dwfl.Dwfl;
+import lib.dwfl.DwflDieBias;
+import lib.dwfl.DwarfDie;
import java.util.LinkedList;
import java.util.List;
-
import frysk.expr.ExprSymTab;
import frysk.isa.ISA;
import frysk.isa.Register;
@@ -132,4 +135,21 @@ public class ObjectDeclarationSearchEngine implements ExprSymTab{
{
return task.getISA().wordSize();
}
+
+ /**
+ * XXX: Who knows if this works; it is certainly not implemented
+ * correctly as it should use the ObjectDeclaration.
+ */
+ public void complete(String incomplete, List candidates) {
+ long pc = frame.getAdjustedAddress();
+ Dwfl dwfl = DwflCache.getDwfl(frame.getTask());
+ DwflDieBias bias = dwfl.getCompilationUnit(pc);
+ DwarfDie die = bias.die;
+ DwarfDie[] allDies = die.getScopes(pc - bias.bias);
+ List candidates_p = die.getScopeVarNames(allDies, incomplete);
+ for (Iterator i = candidates_p.iterator(); i.hasNext();) {
+ String sNext = (String) i.next();
+ candidates.add(sNext);
+ }
+ }
}
diff --git a/frysk-core/frysk/expr/ChangeLog b/frysk-core/frysk/expr/ChangeLog
index 1b9f728..784f33d 100644
--- a/frysk-core/frysk/expr/ChangeLog
+++ b/frysk-core/frysk/expr/ChangeLog
@@ -1,3 +1,17 @@
+2007-11-17 Andrew Cagney <cagney@redhat.com>
+
+ * CompletionException.java (getMessage()): New.
+ * TestCompletion.java (testOneCompletion()): New.
+ (testTwoCompletions()): New.
+ (testNoCompletions()): Replace testNothingToDo().
+ (complete(String,String[],int)): New.
+ * DetailedAST.java: New.
+ * ExprSymTab.java (complete(String,List)): New.
+ * ScratchSymTab.java (complete(String,List)): New.
+
+ * TestCompletion.java: New.
+ * ExpressionFactory.java: New.
+
2007-11-16 Andrew Cagney <cagney@redhat.com>
* TabException.java: Delete.
diff --git a/frysk-core/frysk/expr/CompletionException.java b/frysk-core/frysk/expr/CompletionException.java
index 19aa7a4..56f2ede 100644
--- a/frysk-core/frysk/expr/CompletionException.java
+++ b/frysk-core/frysk/expr/CompletionException.java
@@ -49,9 +49,14 @@ public class CompletionException extends RuntimeException {
static final long serialVersionUID = 1;
private final AST ast;
CompletionException(AST ast) {
- super("completing " + ast);
this.ast = ast;
}
+ public String getMessage() {
+ return ("complete <<"
+ + getText()
+ + ">> at "
+ + getColumn());
+ }
/**
* Return the incomplete string (minus the tab).
*/
@@ -67,6 +72,7 @@ public class CompletionException extends RuntimeException {
return ast.getLine();
}
public int getColumn() {
- return ast.getColumn();
+ // Antlr counts columns starting at 1.
+ return ast.getColumn() - 1;
}
}
diff --git a/frysk-core/frysk/expr/CompletionException.java b/frysk-core/frysk/expr/DetailedAST.java
similarity index 80%
copy from frysk-core/frysk/expr/CompletionException.java
copy to frysk-core/frysk/expr/DetailedAST.java
index 19aa7a4..bfe069a 100644
--- a/frysk-core/frysk/expr/CompletionException.java
+++ b/frysk-core/frysk/expr/DetailedAST.java
@@ -39,34 +39,31 @@
package frysk.expr;
-import antlr.collections.AST;
+import antlr.CommonAST;
+import antlr.Token;
/**
- * An incomplete blah.
+ * An AST that also retains the location of its token.
+ *
+ * For what ever reason the default ast doesn't remember the location
+ * (line/col) of a token.
*/
-public class CompletionException extends RuntimeException {
+public class DetailedAST extends CommonAST {
static final long serialVersionUID = 1;
- private final AST ast;
- CompletionException(AST ast) {
- super("completing " + ast);
- this.ast = ast;
+ public DetailedAST() {
}
- /**
- * 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();
+ private int column;
+ private int line;
+ public void initialize(Token t) {
+ super.initialize(t);
+ this.column = t.getColumn();
+ this.line = t.getLine();
}
public int getColumn() {
- return ast.getColumn();
+ return column;
+ }
+ public int getLine() {
+ return line;
}
}
diff --git a/frysk-core/frysk/expr/ExprSymTab.java b/frysk-core/frysk/expr/ExprSymTab.java
index 5f7da6b..eb8e5c2 100644
--- a/frysk-core/frysk/expr/ExprSymTab.java
+++ b/frysk-core/frysk/expr/ExprSymTab.java
@@ -41,7 +41,7 @@ package frysk.expr;
import inua.eio.ByteBuffer;
import inua.eio.ByteOrder;
-
+import java.util.List;
import frysk.value.ObjectDeclaration;
import frysk.value.Type;
import frysk.value.Value;
@@ -77,4 +77,22 @@ public interface ExprSymTab
* Return the wordsize.
*/
int getWordSize();
+ /**
+ * Complete the INCOMPLETE named object adding the completed names
+ * to CANDIDATES.
+ *
+ * Assuming a simple symtab containing: "argv", "argc", "main":
+ * complete "a" returns "argv" + "argc"; complete "main" returns
+ * "main"; and complete "bogus" returns <empty>.
+ *
+ * NB: The caller will append a space when there's only one
+ * completion so that "1+arg\t" expands to "1+argv ".
+ *
+ * NB: The caller will sort the list.
+ *
+ * XXX: This is subject to change without notice; for instance:
+ * s/List/Set/ (why jline used List I don't know); addition of a
+ * scope parameter; ...
+ */
+ void complete(String incomplete, List candidates);
}
diff --git a/frysk-core/frysk/expr/TestArithmetics.java b/frysk-core/frysk/expr/ExpressionFactory.java
similarity index 72%
copy from frysk-core/frysk/expr/TestArithmetics.java
copy to frysk-core/frysk/expr/ExpressionFactory.java
index 5db7d88..65d01bf 100644
--- a/frysk-core/frysk/expr/TestArithmetics.java
+++ b/frysk-core/frysk/expr/ExpressionFactory.java
@@ -1,6 +1,6 @@
// This file is part of the program FRYSK.
//
-// Copyright 2007 Red Hat Inc.
+// Copyright 2007, Red Hat Inc.
//
// FRYSK is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
@@ -39,38 +39,47 @@
package frysk.expr;
-import frysk.junit.TestCase;
-import frysk.value.Value;
import java.io.StringReader;
-import frysk.expr.ScratchSymTab;
+import java.util.List;
+import java.util.Collections;
-/**
- * Scratch is for the case where there isn't any symbols, basic ops
- * should still work.
+/**
+ * Create expressions and related stuff.
*/
-public class TestArithmetics extends TestCase {
- private Value eval(String input) {
+public class ExpressionFactory {
+ /**
+ * Perform TAB completion on the expression.
+ */
+ public static int complete(ExprSymTab symTab, String incomplete,
+ int offset, List candidates) {
try {
- input += (char) 3;
+ String input = (incomplete.substring(0, offset)
+ + '\t'
+ + incomplete.substring(offset)
+ +(char) 3);
CExprLexer lexer = new CExprLexer(new StringReader(input));
CExprParser parser = new CExprParser(lexer);
+ parser.setASTNodeClass(DetailedAST.class.getName());
parser.start();
- ExprSymTab symTab = new ScratchSymTab();
- CExprEvaluator exprEvaluator = new CExprEvaluator(symTab);
- return exprEvaluator.expr(parser.getAST());
} catch (antlr.RecognitionException e) {
throw new RuntimeException(e);
} catch (antlr.TokenStreamException e) {
throw new RuntimeException(e);
+ } catch (IncompleteIdentifierException ident) {
+ symTab.complete(ident.getText(), candidates);
+ switch (candidates.size()) {
+ case 0:
+ return -1;
+ case 1:
+ // Append a space.
+ candidates.add(0, candidates.remove(0) + " ");
+ return ident.getColumn();
+ default:
+ Collections.sort(candidates);
+ return ident.getColumn();
+ }
}
- }
-
- private void checkExpr(long value, String expr) {
- assertEquals(expr, value, eval(expr).asLong());
- }
-
- public void testAdd() {
- checkExpr(3, "1 + 2");
+ return -1; // nothing completed.
}
}
diff --git a/frysk-core/frysk/expr/ScratchSymTab.java b/frysk-core/frysk/expr/ScratchSymTab.java
index 4df6397..05a3a07 100644
--- a/frysk-core/frysk/expr/ScratchSymTab.java
+++ b/frysk-core/frysk/expr/ScratchSymTab.java
@@ -41,7 +41,7 @@ package frysk.expr;
import inua.eio.ByteBuffer;
import inua.eio.ByteOrder;
-
+import java.util.List;
import frysk.Config;
import frysk.value.ObjectDeclaration;
import frysk.value.Type;
@@ -93,4 +93,8 @@ public class ScratchSymTab implements ExprSymTab {
// debugger. Required for some expression evaluation.
return Config.getWordSize ();
}
+
+ public void complete(String incomplete, List candidates) {
+ return;
+ }
}
diff --git a/frysk-core/frysk/isa/TestRegisters.java b/frysk-core/frysk/expr/TestCompletion.java
similarity index 61%
copy from frysk-core/frysk/isa/TestRegisters.java
copy to frysk-core/frysk/expr/TestCompletion.java
index 7f6244f..47fbf2a 100644
--- a/frysk-core/frysk/isa/TestRegisters.java
+++ b/frysk-core/frysk/expr/TestCompletion.java
@@ -37,46 +37,48 @@
// version and license this file solely under the GPL without
// exception.
-package frysk.isa;
+package frysk.expr;
import frysk.junit.TestCase;
+import java.util.List;
+import java.util.LinkedList;
-/**
- * The set of registers belonging to an ISA.
+/**
+ * Create expressions and related stuff.
*/
-public class TestRegisters extends TestCase {
- private Registers regs;
- public void setUp() {
- regs = new IA32Registers();
+public class TestCompletion extends TestCase {
+ private void complete(String incomplete, int offset,
+ String[] expectedCandidates, int expectedOffset) {
+ ExprSymTab symTab = new TestbedSymTab();
+ List testCandidates = new LinkedList();
+ int testOffset = ExpressionFactory.complete(symTab, incomplete, offset,
+ testCandidates);
+ assertEquals("candidates", expectedCandidates,
+ (String[]) testCandidates.toArray(new String[0]));
+ assertEquals("offset", expectedOffset, testOffset);
}
- public void tearDown() {
- regs = null;
+ private void complete(String incomplete, String[] expectedCandidates,
+ int expectedOffset) {
+ complete(incomplete, incomplete.length(), expectedCandidates,
+ expectedOffset);
}
-
- public void testGetGroup() {
- assertEquals("getGroup", IA32Registers.MMX,
- regs.getGroup("mmx"));
+ public void testNoCompletions() {
+ complete("bogus", new String[0], -1);
}
-
- public void testGetRegister() {
- assertEquals("getGroup", IA32Registers.FS,
- regs.getRegister("fs"));
+ public void testOneCompletion() {
+ complete("a", new String[] { "a " }, 0);
}
-
- public void testGetGroupNames() {
- assertEquals("getGroupNames",
- new String[] { "general", "mmx", "sse", "segment", "all" },
- regs.getGroupNames());
+ public void testOneLongerCompletion() {
+ complete("c1", new String[] { "c123 "}, 0);
}
-
- public void testDefaultRegisterGroup() {
- assertEquals("getDefaultRegisterGroup", IA32Registers.GENERAL,
- regs.getDefaultRegisterGroup());
+ public void testTwoCompletions() {
+ complete("b", new String[] { "b1", "b2" }, 0);
}
-
- public void testAllRegistersGroup() {
- assertEquals("getAllRegistersGroup", IA32Registers.ALL,
- regs.getAllRegistersGroup());
+ public void testCompletionAfterOp() {
+ complete("a + b", new String[] { "b1", "b2" }, 4);
+ }
+ public void testCompletionBeforeOp() {
+ complete("b + a", 1, new String[] { "b1", "b2" }, 0);
}
}
diff --git a/frysk-core/frysk/expr/TestbedSymTab.java b/frysk-core/frysk/expr/TestbedSymTab.java
index 63664c5..a39b2b1 100644
--- a/frysk-core/frysk/expr/TestbedSymTab.java
+++ b/frysk-core/frysk/expr/TestbedSymTab.java
@@ -39,9 +39,10 @@
package frysk.expr;
+import java.util.Iterator;
import inua.eio.ByteBuffer;
import inua.eio.ByteOrder;
-
+import java.util.List;
import frysk.value.ObjectDeclaration;
import frysk.value.Type;
import frysk.value.Value;
@@ -70,6 +71,9 @@ class TestbedSymTab implements ExprSymTab {
TestbedSymTab () {
symtab = new HashMap();
symtab.put("a", c1);
+ symtab.put("b1", c1);
+ symtab.put("b2", c1);
+ symtab.put("c123", c1);
}
/**
@@ -117,4 +121,12 @@ class TestbedSymTab implements ExprSymTab {
public int getWordSize() {
throw new RuntimeException("no word size");
}
+
+ public void complete(String incomplete, List candidates) {
+ for (Iterator i = symtab.keySet().iterator(); i.hasNext(); ) {
+ String sym = (String)i.next();
+ if (sym.startsWith(incomplete))
+ candidates.add(sym);
+ }
+ }
}
diff --git a/frysk-core/frysk/hpd/ChangeLog b/frysk-core/frysk/hpd/ChangeLog
hooks/post-receive
--
frysk system monitor/debugger
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