.kotlin.kotlin-compiler.1.3.11.source-code.TextOutputImpl Maven / Gradle / Ivy
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
package org.jetbrains.kotlin.js.util;
import java.util.Arrays;
public class TextOutputImpl implements TextOutput {
private final boolean compact;
private int identLevel = 0;
private final static int indentGranularity = 2;
private char[][] indents = new char[][] {new char[0]};
private boolean justNewlined;
private final StringBuilder out;
private int position = 0;
private int line = 0;
private int column = 0;
public TextOutputImpl() {
this(false);
}
public boolean isCompact() {
return compact;
}
public TextOutputImpl(boolean compact) {
this.compact = compact;
out = new StringBuilder();
}
@Override
public String toString() {
return out.toString();
}
@Override
public int getPosition() {
return position;
}
@Override
public int getLine() {
return line;
}
@Override
public int getColumn() {
return column;
}
@Override
public void indentIn() {
++identLevel;
if (identLevel >= indents.length) {
// Cache a new level of indentation string.
char[] newIndentLevel = new char[identLevel * indentGranularity];
Arrays.fill(newIndentLevel, ' ');
char[][] newIndents = new char[indents.length + 1][];
System.arraycopy(indents, 0, newIndents, 0, indents.length);
newIndents[identLevel] = newIndentLevel;
indents = newIndents;
}
}
@Override
public void indentOut() {
--identLevel;
}
@Override
public void newline() {
out.append('\n');
position++;
line++;
column = 0;
justNewlined = true;
}
@Override
public void print(double value) {
maybeIndent();
int oldLength = out.length();
out.append(value);
movePosition(out.length() - oldLength);
}
@Override
public void print(int value) {
maybeIndent();
int oldLength = out.length();
out.append(value);
movePosition(out.length() - oldLength);
}
@Override
public void print(char c) {
maybeIndent();
out.append(c);
movePosition(1);
}
private void movePosition(int l) {
position += l;
column += l;
}
@Override
public void print(char[] s) {
maybeIndent();
printAndCount(s);
}
@Override
public void print(CharSequence s) {
maybeIndent();
printAndCount(s);
}
@Override
public void printOpt(char c) {
if (!compact) {
print(c);
}
}
@Override
public void maybeIndent() {
if (justNewlined && !compact) {
printAndCount(indents[identLevel]);
justNewlined = false;
}
}
private void printAndCount(CharSequence charSequence) {
position += charSequence.length();
column += charSequence.length();
out.append(charSequence);
}
private void printAndCount(char[] chars) {
position += chars.length;
column += chars.length;
out.append(chars);
}
}