Shakespeare programming language to Java bytecode compiler.
Hello, world:
> python compiler.py examples/hello.spl
> java SplProgram
H
E
L
L
O
,
W
O
R
L
D
Requires Python 3 and a JRE >= 5. No need for a JDK.
A class file at version 50.0 (JRE 6) is produced by default. This can be configured using the --cls-maj-version and --cls-min-version compiler options. See list of valid version numbers.
java.lang.VerifyError: Expecting a stackmap frame at branch target
This happens if you've chosen to use a class file version newer than 50 (JRE 6). Newer java bytecode verifiers don't like GOTO instructions pointing at arbitrary locations. A workaround is to disable the bytecode verifier with the -Xverify:none JVM option.
java.lang.ClassFormatError: Illegal field name [character name] in class
This happens if your character's names contain spaces and you have chosen to use a class file version older than 49 (JRE 5). As above, you can tell the JVM to ignore this error by using the Xverify:none JVM argument. Alternatively, you can choose characters that don't have spaces in their names.
java.lang.ClassFormatError: Truncated class file
This happens if you try to use a class file format earlier than 45.3 (JRE 1.1). Class file formats that old are not supported.
java.lang.UnsupportedClassVersionError
The produced class file version is not supported by your JRE. Upgrade your JRE or decrease the class file version.
- Each scene must have a well-defined set of characters on stage. All characters must leave at the end of a scene.
- Characters are single-valued, stacks have not been implemented.
- Arithmetic isn't supported yet (e.g.
You are the quotient of ... and ...) - Each character can only say one line at a time.
- Turn on/off variable initializers (The official spec says the text after a variable declaration is ignored, but other compilers try to interpret it as a value)