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minor: allow specifying indentation unit in Printer

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This commit is contained in:
Dmitry Petrov
2016-08-04 14:54:59 +03:00
committed by Dmitry Petrov
parent 1600037625
commit 520a3133bc
1 changed files with 14 additions and 4 deletions
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core/util.runtime/src/org/jetbrains/kotlin/utils/Printer.java
+14 -4
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@@ -23,13 +23,14 @@ import java.util.Collection;
import java.util.Iterator; import java.util.Iterator;
public class Printer { public class Printer {
private static final String INDENTATION_UNIT = " "; private static final String DEFAULT_INDENTATION_UNIT = " ";
private static final String LINE_SEPARATOR = System.getProperty("line.separator"); private static final String LINE_SEPARATOR = System.getProperty("line.separator");
protected final Appendable out; protected final Appendable out;
private final int maxBlankLines; private final int maxBlankLines;
private String indent = ""; private String indent = "";
private final String indentUnit;
private int blankLineCountIncludingCurrent = 0; private int blankLineCountIncludingCurrent = 0;
private boolean withholdIndentOnce = false; private boolean withholdIndentOnce = false;
@@ -37,9 +38,18 @@ public class Printer {
this(out, Integer.MAX_VALUE); this(out, Integer.MAX_VALUE);
} }
public Printer(@NotNull Appendable out, @NotNull String indentUnit) {
this(out, Integer.MAX_VALUE, indentUnit);
}
public Printer(@NotNull Appendable out, int maxBlankLines) { public Printer(@NotNull Appendable out, int maxBlankLines) {
this(out, maxBlankLines, DEFAULT_INDENTATION_UNIT);
}
public Printer(@NotNull Appendable out, int maxBlankLines, @NotNull String indentUnit) {
this.out = out; this.out = out;
this.maxBlankLines = maxBlankLines; this.maxBlankLines = maxBlankLines;
this.indentUnit = indentUnit;
} }
private void append(Object o) { private void append(Object o) {
@@ -109,18 +119,18 @@ public class Printer {
@NotNull @NotNull
public Printer pushIndent() { public Printer pushIndent() {
indent += INDENTATION_UNIT; indent += indentUnit;
return this; return this;
} }
@NotNull @NotNull
public Printer popIndent() { public Printer popIndent() {
if (indent.length() < INDENTATION_UNIT.length()) { if (indent.length() < indentUnit.length()) {
throw new IllegalStateException("No indentation to pop"); throw new IllegalStateException("No indentation to pop");
} }
indent = indent.substring(INDENTATION_UNIT.length()); indent = indent.substring(indentUnit.length());
return this; return this;
} }