interpreter in Java as part of the book Crafting Interpreters

building

run make bin/lox/Lox.class

.jar

run make bin/lox.jar

usage

running the REPL

run make run (or java -jar bin/lox.jar)

executing a file

run make run ARGS=<FILENAME>

adding a new AST definition

1. add new definition under Main, in src/lox/GenerateAst.java
2. run make run-GenerateAst
3. fill in new visitor methods for Interpreter in src/lox/Interpreter.java

TODO:

• parser: add newline token for better error handling, unwinding and synchronizing
• interpreter: cast boolean to double for things like (a == b) * 4
• fully implement cond ? branch1 : branch2 expressions

ideas

• throw some kind of EndOfExpression exception during parsing so we can skip the upward chain of redundant checks when we know the next token (EOF) won't match anything