extract interface and move impl to kotlin sources
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develar
@@ -1,166 +1,17 @@
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package org.jetbrains.js.compiler;
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import com.google.dart.compiler.common.SourceInfo;
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import com.google.dart.compiler.util.TextOutput;
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import com.intellij.util.PairConsumer;
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import gnu.trove.TObjectIntHashMap;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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public interface SourceMapBuilder {
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void newLine();
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public class SourceMapBuilder {
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private final StringBuilder out = new StringBuilder();
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private final String generatedFilename;
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private final TextOutput textOutput;
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private final PairConsumer<SourceMapBuilder, Object> sourceInfoConsumer;
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void addMapping(String source, int sourceLine, int sourceColumn);
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private String lastSource;
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private int lastSourceIndex;
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void processSourceInfo(Object info);
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private final TObjectIntHashMap<String> sources = new TObjectIntHashMap<String>() {
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@Override
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public int get(String key) {
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int index = index(key);
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return index < 0 ? -1 : _values[index];
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}
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};
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void addLink();
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private final List<String> orderedSources = new ArrayList<String>();
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File getOutFile();
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private int previousGeneratedColumn;
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private int previousSourceIndex;
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private int previousSourceLine;
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private int previousSourceColumn;
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public SourceMapBuilder(String generatedFilename, TextOutput textOutput, PairConsumer<SourceMapBuilder, Object> sourceInfoConsumer) {
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this.generatedFilename = generatedFilename;
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this.textOutput = textOutput;
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this.sourceInfoConsumer = sourceInfoConsumer;
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}
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public String getOutFilename() {
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return generatedFilename + ".map";
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}
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public String build() {
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StringBuilder sb = new StringBuilder();
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sb.append("{\"version\":3,\"file\":\"").append(generatedFilename).append('"').append(',');
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appendSources(sb);
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sb.append(",\"names\":[");
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sb.append("],\"mappings\":\"");
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sb.append(out);
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sb.append("\"}");
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return sb.toString();
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}
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private void appendSources(StringBuilder sb) {
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boolean isNotFirst = false;
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sb.append('"').append("sources").append("\":[");
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for (String source : orderedSources) {
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if (isNotFirst) {
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sb.append(',');
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}
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else {
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isNotFirst = true;
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}
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sb.append('"').append(source).append('"');
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}
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sb.append(']');
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}
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public void newLine() {
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out.append(';');
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previousGeneratedColumn = 0;
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}
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public void processSourceInfo(Object sourceInfo) {
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if (sourceInfo instanceof SourceInfo) {
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throw new UnsupportedOperationException("SourceInfo is not yet supported");
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}
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sourceInfoConsumer.consume(this, sourceInfo);
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}
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private int getSourceIndex(String source) {
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if (source.equals(lastSource)) {
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return lastSourceIndex;
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}
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int sourceIndex = sources.get(source);
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if (sourceIndex == -1) {
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sourceIndex = sources.put(source, orderedSources.size());
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orderedSources.add(source);
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}
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lastSource = source;
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lastSourceIndex = sourceIndex;
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return sourceIndex;
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}
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public void addMapping(String source, int sourceLine, int sourceColumn) {
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if (previousGeneratedColumn != 0) {
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out.append(',');
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}
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Base64VLQ.encode(out, textOutput.getColumn() - previousGeneratedColumn);
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previousGeneratedColumn = textOutput.getColumn();
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int sourceIndex = getSourceIndex(source);
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Base64VLQ.encode(out, sourceIndex - previousSourceIndex);
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previousSourceIndex = sourceIndex;
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Base64VLQ.encode(out, sourceLine - previousSourceLine);
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previousSourceLine = sourceLine;
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Base64VLQ.encode(out, sourceColumn - previousSourceColumn);
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previousSourceColumn = sourceColumn;
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}
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private static int toVLQSigned(int value) {
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return value < 0 ? ((-value) << 1) + 1 : value << 1;
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}
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public void addLink() {
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textOutput.print("\n//@ sourceMappingURL=");
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textOutput.print(getOutFilename());
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}
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private static final class Base64VLQ {
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// A Base64 VLQ digit can represent 5 bits, so it is base-32.
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private static final int VLQ_BASE_SHIFT = 5;
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private static final int VLQ_BASE = 1 << VLQ_BASE_SHIFT;
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// A mask of bits for a VLQ digit (11111), 31 decimal.
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private static final int VLQ_BASE_MASK = VLQ_BASE - 1;
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// The continuation bit is the 6th bit.
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private static final int VLQ_CONTINUATION_BIT = VLQ_BASE;
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/**
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* A map used to convert integer values in the range 0-63 to their base64
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* values.
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*/
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private static final String BASE64_MAP =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZ" +
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"abcdefghijklmnopqrstuvwxyz" +
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"0123456789+/";
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public static void encode(StringBuilder out, int value) {
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value = toVLQSigned(value);
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do {
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int digit = value & VLQ_BASE_MASK;
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value >>>= VLQ_BASE_SHIFT;
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if (value > 0) {
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digit |= VLQ_CONTINUATION_BIT;
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}
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out.append(toBase64(digit));
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}
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while (value > 0);
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}
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public static char toBase64(int value) {
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assert (value <= 63 && value >= 0) : "value out of range:" + value;
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return BASE64_MAP.charAt(value);
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}
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}
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String build();
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}
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