mirror of
https://github.com/eclipse-cdt/cdt
synced 2025-04-29 19:45:01 +02:00
Migrate AsmModelBuilder to new Lexer
This commit is contained in:
Anton Leherbauer
parent
1be0d21863
commit
5ec0f9d046
3 changed files with 192 additions and 166 deletions
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@ -16,6 +16,7 @@ import org.eclipse.cdt.core.dom.IPDOMManager;
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import org.eclipse.cdt.core.model.IAsmLabel;
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import org.eclipse.cdt.core.model.ICElement;
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import org.eclipse.cdt.core.model.ICProject;
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import org.eclipse.cdt.core.model.IInclude;
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import org.eclipse.cdt.core.model.IParent;
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import org.eclipse.cdt.core.model.ISourceRange;
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import org.eclipse.cdt.core.model.ISourceReference;
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@ -58,38 +59,44 @@ public class AsmModelBuilderTest extends BaseTestCase {
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public void testAsmModelElements() throws Exception {
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ICElement[] children= fTU.getChildren();
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assertEquals(7, children.length);
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assertEquals(8, children.length);
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assertEquals(ICElement.C_INCLUDE, children[0].getElementType());
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assertEquals("include.h", children[0].getElementName());
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int idx= 0;
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assertEquals(ICElement.C_INCLUDE, children[idx].getElementType());
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assertTrue(((IInclude)children[idx]).isStandard());
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assertEquals("include1.h", children[idx++].getElementName());
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assertEquals(ICElement.C_INCLUDE, children[idx].getElementType());
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assertFalse(((IInclude)children[idx]).isStandard());
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assertEquals("include2.h", children[idx++].getElementName());
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assertEquals(ICElement.ASM_LABEL, children[1].getElementType());
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assertEquals("nonGlobalLabel", children[1].getElementName());
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assertFalse(((IAsmLabel)children[1]).isGlobal());
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assertEquals(0, ((IParent)children[1]).getChildren().length);
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assertEquals(ICElement.ASM_LABEL, children[2].getElementType());
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assertEquals("globalLabel1", children[2].getElementName());
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assertTrue(((IAsmLabel)children[2]).isGlobal());
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assertEquals(2, ((IParent)children[2]).getChildren().length);
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assertEquals(ICElement.ASM_LABEL, children[idx].getElementType());
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assertEquals("nonGlobalLabel", children[idx].getElementName());
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assertFalse(((IAsmLabel)children[idx]).isGlobal());
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assertEquals(0, ((IParent)children[idx++]).getChildren().length);
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assertEquals(ICElement.C_MACRO, children[3].getElementType());
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assertEquals("MACRO", children[3].getElementName());
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assertEquals(ICElement.ASM_LABEL, children[idx].getElementType());
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assertEquals("globalLabel1", children[idx].getElementName());
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assertTrue(((IAsmLabel)children[idx]).isGlobal());
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assertEquals(2, ((IParent)children[idx++]).getChildren().length);
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assertEquals(ICElement.ASM_LABEL, children[4].getElementType());
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assertEquals("globalLabel2", children[4].getElementName());
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assertTrue(((IAsmLabel)children[4]).isGlobal());
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assertEquals(1, ((IParent)children[4]).getChildren().length);
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assertEquals(ICElement.C_MACRO, children[idx].getElementType());
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assertEquals("MACRO", children[idx++].getElementName());
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assertEquals(ICElement.ASM_LABEL, children[5].getElementType());
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assertEquals("globalLabel3", children[5].getElementName());
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assertTrue(((IAsmLabel)children[5]).isGlobal());
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assertEquals(1, ((IParent)children[5]).getChildren().length);
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assertEquals(ICElement.ASM_LABEL, children[idx].getElementType());
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assertEquals("globalLabel2", children[idx].getElementName());
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assertTrue(((IAsmLabel)children[idx]).isGlobal());
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assertEquals(1, ((IParent)children[idx++]).getChildren().length);
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assertEquals(ICElement.ASM_LABEL, children[6].getElementType());
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assertEquals("alloca", children[6].getElementName());
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assertTrue(((IAsmLabel)children[6]).isGlobal());
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assertEquals(0, ((IParent)children[6]).getChildren().length);
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assertEquals(ICElement.ASM_LABEL, children[idx].getElementType());
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assertEquals("globalLabel3", children[idx].getElementName());
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assertTrue(((IAsmLabel)children[idx]).isGlobal());
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assertEquals(1, ((IParent)children[idx++]).getChildren().length);
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assertEquals(ICElement.ASM_LABEL, children[idx].getElementType());
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assertEquals("alloca", children[idx].getElementName());
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assertTrue(((IAsmLabel)children[idx]).isGlobal());
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assertEquals(0, ((IParent)children[idx++]).getChildren().length);
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}
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public void testAsmLabelRanges() throws Exception {
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@ -2,7 +2,8 @@
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* AsmTest.S
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*/
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#include <include.h>
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#include <include1.h>
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#include "include2.h"
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.globl globalLabel1
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.global globalLabel2, globalLabel3
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@ -47,6 +48,7 @@ globalLabel3:
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otherLabel3:
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movb $0x81, %ah
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jmp globalLabel3
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nop
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/* end */
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.global alloca
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@ -12,14 +12,19 @@
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package org.eclipse.cdt.internal.core.model;
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import java.util.HashMap;
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import java.util.Map;
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import org.eclipse.cdt.core.model.AssemblyLanguage;
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import org.eclipse.cdt.core.model.CModelException;
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import org.eclipse.cdt.core.model.IContributedModelBuilder;
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import org.eclipse.cdt.core.model.ITranslationUnit;
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import org.eclipse.cdt.core.parser.CodeReader;
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import org.eclipse.cdt.internal.formatter.scanner.Scanner;
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import org.eclipse.cdt.internal.formatter.scanner.Token;
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import org.eclipse.cdt.core.parser.IToken;
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import org.eclipse.cdt.core.parser.OffsetLimitReachedException;
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import org.eclipse.cdt.internal.core.parser.scanner.ILexerLog;
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import org.eclipse.cdt.internal.core.parser.scanner.Lexer;
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import org.eclipse.cdt.internal.core.parser.scanner.Token;
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import org.eclipse.cdt.internal.core.parser.scanner.Lexer.LexerOptions;
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/**
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* A simple model builder for assembly translation units.
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@ -31,31 +36,44 @@ import org.eclipse.cdt.internal.formatter.scanner.Token;
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*/
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public class AsmModelBuilder implements IContributedModelBuilder {
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private static final class AsmDirective {
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private static final AsmDirective GLOBAL= new AsmDirective();
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private static final AsmDirective DATA= new AsmDirective();
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}
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private static final class LexerLog implements ILexerLog {
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public void handleComment(boolean isBlockComment, int offset, int endOffset) {
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}
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public void handleProblem(int problemID, char[] info, int offset, int endOffset) {
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}
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}
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private static final class Counter {
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int fCount;
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}
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private final static class Tokenizer extends Scanner {
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public Tokenizer(char[] source) {
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setSource(source);
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}
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private static final Map fgDirectives;
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public Token nextToken() {
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Token t= super.nextToken();
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while (t != null && (t.isWhiteSpace())) {
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t= super.nextToken();
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}
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return t;
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}
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static {
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fgDirectives= new HashMap();
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fgDirectives.put("globl", AsmDirective.GLOBAL); //$NON-NLS-1$
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fgDirectives.put("global", AsmDirective.GLOBAL); //$NON-NLS-1$
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fgDirectives.put("ascii", AsmDirective.DATA); //$NON-NLS-1$
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fgDirectives.put("asciz", AsmDirective.DATA); //$NON-NLS-1$
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fgDirectives.put("byte", AsmDirective.DATA); //$NON-NLS-1$
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fgDirectives.put("long", AsmDirective.DATA); //$NON-NLS-1$
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fgDirectives.put("word", AsmDirective.DATA); //$NON-NLS-1$
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}
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private TranslationUnit fTranslationUnit;
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private char fLineSeparatorChar;
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private HashMap fGlobals;
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private HashMap fLabels;
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private Map fGlobals;
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private Map fLabels;
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private int fLastLabelEndOffset;
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private AsmLabel fLastGlobalLabel;
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private SourceManipulation fLastLabel;
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private Lexer fLexer;
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/**
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* Creates a model builder for the given assembly translation unit.
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@ -87,8 +105,10 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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buildModel(reader.buffer);
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// not sure whether this is necessary or not
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fTranslationUnit.setIsStructureKnown(true);
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// cleanup
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fGlobals= null;
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fLabels= null;
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fLexer= null;
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}
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/**
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@ -96,6 +116,7 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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*
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* @param source
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* @throws CModelException
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* @throws OffsetLimitReachedException
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*/
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private void buildModel(final char[] source) throws CModelException {
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fGlobals= new HashMap();
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@ -104,10 +125,8 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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fLastGlobalLabel= null;
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fLastLabelEndOffset= 0;
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// TLETODO use new Lexer?
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Scanner scanner= new Scanner();
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scanner.setSplitPreprocessor(true);
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scanner.setSource(source);
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final LexerOptions lexerOptions= new LexerOptions();
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fLexer= new Lexer(source, lexerOptions, new LexerLog(), null);
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// if true the next token is the first on a (logical) line
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boolean firstTokenOnLine= true;
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@ -116,56 +135,39 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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// inside instruction
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boolean inInstruction= false;
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Token token= scanner.nextToken();
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IToken token= nextToken();
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while (token != null) {
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int type= adaptTokenType(token);
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switch (type) {
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case Token.tPREPROCESSOR_INCLUDE:
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parseInclude(fTranslationUnit, token);
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break;
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case Token.tPREPROCESSOR_DEFINE:
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parseDefine(fTranslationUnit, token);
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break;
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case Token.tFLOATINGPT:
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if (token.getText().startsWith(".")) { //$NON-NLS-1$
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// move scanner behind '.'
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scanner.setCurrentPosition(scanner.getCurrentTokenStartPosition() + 1);
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// fallthrough
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} else {
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break;
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switch (token.getType()) {
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case IToken.tPOUND:
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if (fLexer.currentTokenIsFirstOnLine()) {
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parsePPDirective(fTranslationUnit);
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}
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case Token.tDOT:
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break;
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case IToken.tDOT:
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// assembly directive?
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firstTokenOnLine= false;
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if (expectInstruction) {
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expectInstruction= false;
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int pos= scanner.getCurrentPosition();
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token= scanner.nextToken();
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if (token != null && adaptTokenType(token) == Token.tIDENTIFIER) {
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String text= token.getText();
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token= nextToken();
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if (token != null && token.getType() == IToken.tIDENTIFIER) {
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String text= token.getImage();
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if (isGlobalDirective(text)) {
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firstTokenOnLine= parseGlobalDirective(token, scanner);
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firstTokenOnLine= parseGlobalDirective(token);
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} else if (isDataDirective(text)) {
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inInstruction= true;
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fLastLabelEndOffset= scanner.getCurrentTokenEndPosition();
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}
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} else {
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scanner.setCurrentPosition(pos);
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}
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}
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break;
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case Token.tIDENTIFIER:
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case IToken.tIDENTIFIER:
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// identifier may be a label or part of an instruction
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if (firstTokenOnLine) {
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int pos= scanner.getCurrentPosition();
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int ch= scanner.getNextChar();
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if (ch == ':') {
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parseLabel(fTranslationUnit, token);
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fLastLabelEndOffset= scanner.getCurrentPosition();
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// peek next char
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char nextChar= source[token.getEndOffset()];
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if (nextChar == ':') {
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createLabel(fTranslationUnit, token);
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expectInstruction= true;
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} else {
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fLastLabelEndOffset= scanner.getCurrentTokenEndPosition();
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scanner.setCurrentPosition(pos);
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expectInstruction= false;
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inInstruction= true;
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}
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@ -173,18 +175,13 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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} else if (expectInstruction){
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expectInstruction= false;
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inInstruction= true;
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fLastLabelEndOffset= scanner.getCurrentTokenEndPosition();
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} else if (inInstruction) {
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fLastLabelEndOffset= scanner.getCurrentTokenEndPosition();
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}
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break;
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case Token.tPREPROCESSOR:
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case Token.tWHITESPACE:
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case Lexer.tNEWLINE:
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if (!firstTokenOnLine) {
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int nlIndex= token.getText().indexOf('\n');
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firstTokenOnLine= nlIndex >= 0;
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if (firstTokenOnLine && inInstruction) {
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fLastLabelEndOffset= scanner.getCurrentTokenStartPosition() + nlIndex + 1;
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firstTokenOnLine= true;
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if (inInstruction) {
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fLastLabelEndOffset= fLexer.currentToken().getEndOffset();
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}
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}
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break;
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@ -192,7 +189,7 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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expectInstruction= false;
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firstTokenOnLine= false;
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if (fLineSeparatorChar != 0) {
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if (token.getLength() == 1 && token.getText().charAt(0) == fLineSeparatorChar) {
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if (token.getLength() == 1 && token.getCharImage()[0] == fLineSeparatorChar) {
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firstTokenOnLine= true;
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}
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}
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@ -201,10 +198,10 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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expectInstruction= true;
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inInstruction= false;
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}
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token= scanner.nextToken();
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token= nextToken();
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}
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if (!firstTokenOnLine && inInstruction) {
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fLastLabelEndOffset= scanner.getCurrentTokenEndPosition();
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fLastLabelEndOffset= fLexer.currentToken().getEndOffset();
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}
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if (fLastLabel != null) {
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fixupLastLabel();
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@ -214,45 +211,36 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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}
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}
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/**
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* Adapt non-identifier tokens to identifier type if they look like valid asm words.
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*
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* @param token
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* @return the adapted token type
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*/
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private int adaptTokenType(Token token) {
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int type= token.getType();
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if (type != Token.tIDENTIFIER) {
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if (Character.isUnicodeIdentifierStart(token.getText().charAt(0))) {
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type= Token.tIDENTIFIER;
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protected IToken nextToken() {
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Token token;
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try {
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token= fLexer.nextToken();
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if (token.getType() == Lexer.tEND_OF_INPUT) {
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token = null;
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}
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} catch (OffsetLimitReachedException exc) {
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token= null;
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}
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return type;
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return token;
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}
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private boolean isDataDirective(String directive) {
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return "byte".equals(directive) || "long".equals(directive) || "word".equals(directive) || "ascii".equals(directive); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$ //$NON-NLS-4$
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}
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private boolean parseGlobalDirective(Token token, Scanner scanner) {
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private boolean parseGlobalDirective(IToken token) {
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boolean eol= false;
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do {
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Token t= scanner.nextToken();
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IToken t= nextToken();
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if (t == null) {
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break;
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}
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switch (adaptTokenType(t)) {
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case Token.tIDENTIFIER:
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registerGlobalLabel(t.getText());
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switch (t.getType()) {
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case IToken.tIDENTIFIER:
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registerGlobalLabel(t.getImage());
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break;
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case Token.tWHITESPACE:
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if (token.getText().indexOf('\n') >= 0) {
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case Lexer.tNEWLINE:
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eol= true;
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}
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break;
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default:
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if (fLineSeparatorChar != 0) {
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if (token.getLength() == 1 && token.getText().charAt(0) == fLineSeparatorChar) {
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if (token.getLength() == 1 && token.getCharImage()[0] == fLineSeparatorChar) {
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eol= true;
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}
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}
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@ -261,11 +249,15 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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return eol;
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}
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private boolean isGlobalDirective(String name) {
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return "globl".equals(name) || "global".equals(name); //$NON-NLS-1$ //$NON-NLS-2$
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private static final boolean isDataDirective(String directive) {
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return fgDirectives.get(directive) == AsmDirective.DATA;
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}
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private void registerGlobalLabel(String labelName) {
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private static final boolean isGlobalDirective(String directive) {
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return fgDirectives.get(directive) == AsmDirective.GLOBAL;
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}
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protected void registerGlobalLabel(String labelName) {
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Counter counter= (Counter) fGlobals.get(labelName);
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if (counter == null) {
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fGlobals.put(labelName, counter= new Counter());
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@ -281,7 +273,7 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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return counter.fCount;
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}
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private int registerLabel(String labelName) {
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protected int registerLabel(String labelName) {
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Counter counter= (Counter) fLabels.get(labelName);
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if (counter == null) {
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fLabels.put(labelName, counter= new Counter());
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@ -289,8 +281,8 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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return counter.fCount++;
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}
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private void parseLabel(CElement parent, Token token) throws CModelException {
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String labelName= token.getText();
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protected void createLabel(CElement parent, IToken token) throws CModelException {
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String labelName= token.getImage();
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int index= getGlobalLabelIndex(labelName);
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boolean global= index > 0;
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if (!global) {
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@ -347,68 +339,93 @@ public class AsmModelBuilder implements IContributedModelBuilder {
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}
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}
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private void parseDefine(CElement parent, Token token) throws CModelException {
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final String tokenText= token.getText();
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Scanner defineScanner= new Tokenizer(tokenText.toCharArray());
|
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defineScanner.setCurrentPosition(tokenText.indexOf('#') + 1);
|
||||
private void parsePPDirective(CElement parent) throws CModelException {
|
||||
IToken token= nextToken();
|
||||
if (token != null && token.getType() == IToken.tIDENTIFIER) {
|
||||
final String image= token.getImage();
|
||||
if (image.equals("define")) { //$NON-NLS-1$
|
||||
try {
|
||||
parsePPDefine(parent);
|
||||
} catch (OffsetLimitReachedException exc) {
|
||||
}
|
||||
return;
|
||||
} else if (image.equals("include")) { //$NON-NLS-1$
|
||||
try {
|
||||
parsePPInclude(parent);
|
||||
} catch (OffsetLimitReachedException exc) {
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
try {
|
||||
skipToNewLine();
|
||||
} catch (OffsetLimitReachedException exc) {
|
||||
}
|
||||
}
|
||||
|
||||
protected int skipToNewLine() throws OffsetLimitReachedException {
|
||||
return fLexer.consumeLine(fLexer.currentToken().getEndOffset());
|
||||
}
|
||||
|
||||
private void parsePPDefine(CElement parent) throws CModelException, OffsetLimitReachedException {
|
||||
int startOffset= fLexer.currentToken().getOffset();
|
||||
int nameStart= 0;
|
||||
int nameEnd= 0;
|
||||
String name= null;
|
||||
Token t= defineScanner.nextToken();
|
||||
if (adaptTokenType(t) == Token.tIDENTIFIER && t.getText().equals("define")) { //$NON-NLS-1$
|
||||
t= defineScanner.nextToken();
|
||||
if (adaptTokenType(t) == Token.tIDENTIFIER) {
|
||||
nameStart= defineScanner.getCurrentTokenStartPosition();
|
||||
nameEnd= defineScanner.getCurrentTokenEndPosition() + 1;
|
||||
name= t.getText();
|
||||
}
|
||||
IToken t= nextToken();
|
||||
if (t.getType() == IToken.tIDENTIFIER) {
|
||||
nameStart= fLexer.currentToken().getOffset();
|
||||
nameEnd= fLexer.currentToken().getEndOffset();
|
||||
name= t.getImage();
|
||||
}
|
||||
if (name == null) {
|
||||
return;
|
||||
}
|
||||
int endOffset= skipToNewLine();
|
||||
Macro macro= new Macro(parent, name);
|
||||
SourceManipulationInfo macroInfo= macro.getSourceManipulationInfo();
|
||||
macroInfo.setIdPos(token.getOffset() + nameStart, nameEnd - nameStart);
|
||||
macroInfo.setPos(token.getOffset(), token.getLength());
|
||||
macroInfo.setIdPos(nameStart, nameEnd - nameStart);
|
||||
macroInfo.setPos(startOffset, endOffset - startOffset);
|
||||
parent.addChild(macro);
|
||||
}
|
||||
|
||||
private void parseInclude(CElement parent, Token token) throws CModelException {
|
||||
final String tokenText= token.getText();
|
||||
Scanner includeScanner= new Tokenizer(tokenText.toCharArray());
|
||||
includeScanner.setCurrentPosition(tokenText.indexOf('#') + 1);
|
||||
private void parsePPInclude(CElement parent) throws CModelException, OffsetLimitReachedException {
|
||||
int startOffset= fLexer.currentToken().getOffset();
|
||||
int nameStart= 0;
|
||||
int nameEnd= includeScanner.eofPosition + 1;
|
||||
int nameEnd= 0;
|
||||
String name= null;
|
||||
boolean isStandard= false;
|
||||
Token t= includeScanner.nextToken();
|
||||
if (adaptTokenType(t) == Token.tIDENTIFIER) {
|
||||
t= includeScanner.nextToken();
|
||||
if (t.type == Token.tLT) {
|
||||
nameStart= includeScanner.getCurrentTokenStartPosition();
|
||||
IToken t= nextToken();
|
||||
switch (t.getType()) {
|
||||
case IToken.tLT:
|
||||
nameStart= fLexer.currentToken().getOffset();
|
||||
do {
|
||||
t= includeScanner.nextToken();
|
||||
} while (t != null && t.type != Token.tGT);
|
||||
nameEnd= includeScanner.getCurrentTokenEndPosition() + 1;
|
||||
name= tokenText.substring(nameStart + 1, nameEnd - 1);
|
||||
} else if (t.type == Token.tSTRING) {
|
||||
nameStart= includeScanner.getCurrentTokenStartPosition();
|
||||
nameEnd= includeScanner.getCurrentTokenEndPosition() + 1;
|
||||
name= t.getText().substring(1, t.getLength() - 1);
|
||||
t= nextToken();
|
||||
} while (t.getType() != IToken.tGT);
|
||||
nameEnd= fLexer.currentToken().getEndOffset();
|
||||
name= new String(fLexer.getInputChars(nameStart + 1, nameEnd - 1));
|
||||
isStandard= true;
|
||||
} else if (adaptTokenType(t) == Token.tIDENTIFIER) {
|
||||
nameStart= includeScanner.getCurrentTokenStartPosition();
|
||||
nameEnd= includeScanner.getCurrentTokenEndPosition() + 1;
|
||||
name= t.getText();
|
||||
}
|
||||
break;
|
||||
case IToken.tSTRING:
|
||||
nameStart= fLexer.currentToken().getOffset();
|
||||
nameEnd= fLexer.currentToken().getEndOffset();
|
||||
name= t.getImage().substring(1, t.getLength() - 1);
|
||||
break;
|
||||
case IToken.tIDENTIFIER:
|
||||
nameStart= fLexer.currentToken().getOffset();
|
||||
nameEnd= fLexer.currentToken().getEndOffset();
|
||||
name= t.getImage();
|
||||
break;
|
||||
default:
|
||||
}
|
||||
if (name == null) {
|
||||
return;
|
||||
}
|
||||
int endOffset= skipToNewLine();
|
||||
Include include= new Include(parent, name, isStandard);
|
||||
SourceManipulationInfo includeInfo= include.getSourceManipulationInfo();
|
||||
includeInfo.setIdPos(token.getOffset() + nameStart, nameEnd - nameStart);
|
||||
includeInfo.setPos(token.getOffset(), token.getLength());
|
||||
includeInfo.setIdPos(nameStart, nameEnd - nameStart);
|
||||
includeInfo.setPos(startOffset, endOffset - startOffset);
|
||||
parent.addChild(include);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue