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[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / internal / compiler / ast / StringLiteral.java

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/internal/compiler/ast/StringLiteral.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/internal/compiler/ast/StringLiteral.java
new file mode 100644 (file)
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+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/internal/compiler/ast/StringLiteral.java
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+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpeclipse.internal.compiler.ast;
+
+import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
+import net.sourceforge.phpdt.internal.compiler.impl.Constant;
+import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
+import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
+
+
+public class StringLiteral extends Literal {
+
+       char[] source;
+
+       public StringLiteral(char[] token, int s, int e) {
+
+               this(s,e);
+               source = token;
+       }
+
+       public StringLiteral(int s, int e) {
+
+               super(s,e);
+       }
+
+       public void computeConstant() {
+       
+               constant = Constant.fromValue(String.valueOf(source));
+       }
+
+       public ExtendedStringLiteral extendWith(CharLiteral lit){
+
+               //add the lit source to mine, just as if it was mine
+               return new ExtendedStringLiteral(this,lit);
+       }
+
+       public ExtendedStringLiteral extendWith(StringLiteral lit){
+
+               //add the lit source to mine, just as if it was mine
+               return new ExtendedStringLiteral(this,lit);
+       }
+
+       /**
+        * Code generation for string literal
+        */ 
+//     public void generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired) {
+//
+//             int pc = codeStream.position;
+//             if (valueRequired)
+//                     codeStream.ldc(constant.stringValue());
+//             codeStream.recordPositionsFrom(pc, this.sourceStart);
+//     }
+
+       public TypeBinding literalType(BlockScope scope) {
+
+               return scope.getJavaLangString();
+       }
+
+       public char[] source() {
+
+               return source;
+       }
+
+       public String toStringExpression() {
+       
+               // handle some special char.....
+               StringBuffer result = new StringBuffer("\""); //$NON-NLS-1$
+               for (int i = 0; i < source.length; i++) {
+                       switch (source[i]) {
+                               case '\b' :
+                                       result.append("\\b"); //$NON-NLS-1$
+                                       break;
+                               case '\t' :
+                                       result.append("\\t"); //$NON-NLS-1$
+                                       break;
+                               case '\n' :
+                                       result.append("\\n"); //$NON-NLS-1$
+                                       break;
+                               case '\f' :
+                                       result.append("\\f"); //$NON-NLS-1$
+                                       break;
+                               case '\r' :
+                                       result.append("\\r"); //$NON-NLS-1$
+                                       break;
+                               case '\"' :
+                                       result.append("\\\""); //$NON-NLS-1$
+                                       break;
+                               case '\'' :
+                                       result.append("\\'"); //$NON-NLS-1$
+                                       break;
+                               case '\\' : //take care not to display the escape as a potential real char
+                                       result.append("\\\\"); //$NON-NLS-1$
+                                       break;
+                               default :
+                                       result.append(source[i]);
+                       }
+               }
+               result.append("\""); //$NON-NLS-1$
+               return result.toString();
+       }
+
+       public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) {
+               visitor.visit(this, scope);
+               visitor.endVisit(this, scope);
+       }
+}