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Add a simple extended error message (#4646) #5568

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d375c3a
simple extended error message
Jul 1, 2018
3351997
changed mechanism
Jul 3, 2018
6aeaec5
add regex-method and tidy up the code
Jul 4, 2018
10f8624
removed some println`s
Jul 4, 2018
b00f689
modified the regex expression
Jul 4, 2018
a38f29c
modified the regex expression for proper error message
Jul 4, 2018
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add regex-method and tidy up the code
  • Loading branch information
Christian Bender committed Jul 4, 2018
commit 6aeaec5328ff8f3e005dc45996fd25a7398c495b
16 changes: 2 additions & 14 deletions java/src/processing/mode/java/Compiler.java
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Original file line number Diff line number Diff line change
Expand Up @@ -62,8 +62,6 @@ static public boolean compile(JavaBuild build) throws SketchException {
SketchException exception = null;
boolean success = false;

// System.out.printf("DEBUG: class Compiler -- BEGIN compile(...)\n"); //DEBUG

String baseCommand[] = new String[] {
"-g",
"-Xemacs",
Expand Down Expand Up @@ -112,9 +110,6 @@ public void close() { }
// so that it can grab the compiler JAR files from it.
ClassLoader loader = build.mode.getClassLoader();

// System.out.printf("DEBUG: class Compiler -- line 114 -- compile(...) exception=%s\n",exception); // DEBUG
// System.err.println(errorBuffer.toString()); //DEBUG

try {
Class<?> batchClass =
Class.forName("org.eclipse.jdt.core.compiler.batch.BatchCompiler", false, loader);
Expand All @@ -125,33 +120,26 @@ public void close() { }
Method compileMethod = batchClass.getMethod("compile", compileArgs);
success = (Boolean)
compileMethod.invoke(null, new Object[] { command, outWriter, writer, null });
// System.err.println(errorBuffer.toString()); //DEBUG

} catch (Exception e) {
e.printStackTrace();
throw new SketchException("Unknown error inside the compiler.");
}

// System.err.println(errorBuffer.toString()); //DEBUG

// Close out the stream for good measure
writer.flush();
writer.close();

BufferedReader reader =
new BufferedReader(new StringReader(errorBuffer.toString()));
// System.err.println(errorBuffer.toString()); //DEBUG

String line = null;
while ((line = reader.readLine()) != null) {
// System.out.println("got line " + line); // debug

// get first line, which contains file name, line number,
// and at least the first line of the error message
String errorFormat = "([\\w\\d_]+.java):(\\d+):\\s*(.*):\\s*(.*)\\s*";
String[] pieces = PApplet.match(line, errorFormat);
// PApplet.println(pieces);
// System.out.println(pieces[4]); //DEBUG

// if it's something unexpected, die and print the mess to the console
if (pieces == null) {
Expand All @@ -173,7 +161,8 @@ public void close() { }
String errorMessage = pieces[4];

// extended error message or certain error message
if (errorMessage.length() <= 3) {

if (!errorMessage.matches("(a-zA-Z| )+")) {
switch (errorMessage) {
case "23)": // cast error: int -> boolean
errorMessage = "int constant cannot be casted into boolean";
Expand All @@ -191,7 +180,6 @@ public void close() { }


if (exception == null) {
// System.err.println(errorMessage); //DEBUG
exception = new SketchException(errorMessage);
}

Expand Down