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https://github.com/aNNiMON/Own-Programming-Language-Tutorial.git
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Вывод информации о длительности работы парсера
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@ -1,8 +1,6 @@
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package com.annimon.ownlang;
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import com.annimon.ownlang.lib.CallStack;
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import com.annimon.ownlang.lib.Function;
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import com.annimon.ownlang.lib.Functions;
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import com.annimon.ownlang.parser.Lexer;
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import com.annimon.ownlang.parser.Parser;
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import com.annimon.ownlang.parser.Token;
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@ -14,6 +12,7 @@ import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.util.List;
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import java.util.concurrent.TimeUnit;
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/**
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* @author aNNiMON
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@ -22,11 +21,11 @@ public final class Main {
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public static void main(String[] args) throws IOException {
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if (args.length == 0) {
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run(readFile("program.own"), true, true);
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run(readFile("program.own"), true, true, true);
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return;
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}
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boolean showTokens = false, showAst = false;
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boolean showTokens = false, showAst = false, showMeasurements = false;
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String input = null;
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for (int i = 0; i < args.length; i++) {
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switch (args[i]) {
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@ -40,6 +39,11 @@ public final class Main {
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showTokens = true;
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break;
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case "-m":
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case "--showtime":
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showMeasurements = true;
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break;
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case "-f":
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case "--file":
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if (i + 1 < args.length) {
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@ -55,23 +59,28 @@ public final class Main {
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if (input == null) {
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throw new IllegalArgumentException("Empty input");
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}
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run(input, showTokens, showAst);
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run(input, showTokens, showAst, showMeasurements);
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}
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private static String readFile(String file) throws IOException {
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return new String( Files.readAllBytes(Paths.get(file)), "UTF-8");
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}
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private static void run(String input, boolean showTokens, boolean showAst) {
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private static void run(String input, boolean showTokens, boolean showAst, boolean showMeasurements) {
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final TimeMeasurement measurement = new TimeMeasurement();
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measurement.start("Tokenize time");
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final List<Token> tokens = new Lexer(input).tokenize();
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measurement.stop("Tokenize time");
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if (showTokens) {
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for (int i = 0; i < tokens.size(); i++) {
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System.out.println(i + " " + tokens.get(i));
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}
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}
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measurement.start("Parse time");
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final Parser parser = new Parser(tokens);
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final Statement program = parser.parse();
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measurement.stop("Parse time");
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if (showAst) {
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System.out.println(program.toString());
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}
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@ -83,9 +92,15 @@ public final class Main {
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// program.accept(new VariablePrinter());
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program.accept(new AssignValidator());
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try {
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measurement.start("Execution time");
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program.execute();
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} catch (Exception ex) {
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handleException(Thread.currentThread(), ex);
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} finally {
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if (showMeasurements) {
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measurement.stop("Execution time");
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System.out.println(measurement.summary(TimeUnit.MILLISECONDS, true));
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}
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}
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}
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79
src/com/annimon/ownlang/TimeMeasurement.java
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79
src/com/annimon/ownlang/TimeMeasurement.java
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@ -0,0 +1,79 @@
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package com.annimon.ownlang;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.TimeUnit;
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public final class TimeMeasurement {
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private final Map<String, Long> finished, running;
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public TimeMeasurement() {
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finished = new HashMap<>();
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running = new HashMap<>();
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}
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public void clear() {
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finished.clear();
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running.clear();
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}
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public void start(String... names) {
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final long time = System.nanoTime();
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for (String name : names) {
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running.put(name, time);
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}
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}
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public void pause(String... names) {
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final long time = System.nanoTime();
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for (String name : names) {
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if (running.containsKey(name)) {
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addTime(name, time - running.get(name));
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running.remove(name);
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}
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}
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}
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public void stop(String... names) {
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final long time = System.nanoTime();
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for (String name : names) {
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if (running.containsKey(name)) {
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addTime(name, time - running.get(name));
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}
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}
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}
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public Map<String, Long> getFinished() {
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return finished;
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}
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public String summary() {
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return summary(TimeUnit.SECONDS, true);
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}
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public String summary(TimeUnit unit, boolean showSummary) {
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final String unitName = unit.name().toLowerCase();
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final StringBuilder result = new StringBuilder();
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long summaryTime = 0;
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for (Map.Entry<String, Long> entry : finished.entrySet()) {
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final long convertedTime = unit.convert(entry.getValue(), TimeUnit.NANOSECONDS);
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summaryTime += convertedTime;
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result.append(entry.getKey()).append(": ")
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.append(convertedTime).append(' ').append(unitName)
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.append(System.lineSeparator());
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}
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if (showSummary) {
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result.append("Summary: ")
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.append(summaryTime).append(' ').append(unitName)
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.append(System.lineSeparator());
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}
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return result.toString();
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}
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private void addTime(String name, long time) {
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final long alreadyElapsed = finished.getOrDefault(name, 0L);
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finished.put(name, alreadyElapsed + time);
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}
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}
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