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|
/* ___ ____ ___ __ ___ ___
** / _// __// _ | / / / _ | / _ \ Scala classfile decoder
** __\ \/ /__/ __ |/ /__/ __ |/ ___/ (c) 2003, LAMP/EPFL
** /____/\___/_/ |_/____/_/ |_/_/
**
** $Id$
*/
package scalap;
import java.io._;
class CodeWriter(writer: Writer) {
private val nl = System.getProperty("line.separator");
private var step = " ";
private var level = 0;
private var align = false;
private var space = false;
private var line = false;
def getWriter = writer;
def getIndentLevel = level;
def setIndentLevel(level: Int): CodeWriter = {
this.level = level;
this
}
def getIndentWidth = if (step == null) -1 else step.length();
def setIndentWidth(width: Int): CodeWriter = {
val buffer = new StringBuffer(width);
var i = 0;
while (i < width)
buffer.append(' ');
setIndentString(buffer.toString())
}
def getIndentString = step;
def setIndentString(step: String): CodeWriter = {
this.step = step;
this
}
def indent: CodeWriter = {
level = level + 1;
this
}
def undent: CodeWriter = {
level = level - 1;
this
}
def newline: CodeWriter = {
if (step == null)
newspace;
else if (!line) {
try {
writer.write(nl);
} catch {
case e => error("IO error")
}
line = align;
align = true;
space = false;
this
} else
this
}
def newspace: CodeWriter = {
space = !align;
this
}
def * : Unit = {}
def println: CodeWriter = newline;
def println(value: Boolean): CodeWriter = print(value).newline;
def println(value: Byte): CodeWriter = print(value).newline;
def println(value: Short): CodeWriter = print(value).newline;
def println(value: Char): CodeWriter = print(value).newline;
def println(value: Int): CodeWriter = print(value).newline;
def println(value: Long): CodeWriter = print(value).newline;
def println(value: Float): CodeWriter = print(value).newline;
def println(value: Double): CodeWriter = print(value).newline;
def println(value: String): CodeWriter = print(value).newline;
def print(value: Boolean): CodeWriter = print(String.valueOf(value));
def print(value: Byte): CodeWriter = print(String.valueOf(value));
def print(value: Short): CodeWriter = print(String.valueOf(value));
def print(value: Char): CodeWriter = print(String.valueOf(value));
def print(value: Int): CodeWriter = print(String.valueOf(value));
def print(value: Long): CodeWriter = print(String.valueOf(value));
def print(value: Float): CodeWriter = print(String.valueOf(value));
def print(value: Double): CodeWriter = print(String.valueOf(value));
def print(value: String): CodeWriter = try {
if (align) {
var i = 0;
while (i < level) {
writer.write(step);
i = i + 1;
}
}
if (space)
writer.write(" ");
writer.write(value);
align = false;
space = false;
line = false;
this
} catch {
case e => error("IO error")
}
override def toString(): String = writer.toString();
}
|
