Expressions

Expression types

• Conditional
• Binary
• Indexing

Conditional

• Returns a boolean.

• Standard form:

  <TERM> <CONDITIONAL_OPERATOR> <TERM>
  

Binary

• Standard form:

  <TERM> <MATHEMATICAL_OPERATOR> <TERM>
  

Indexing

• Returns type at index of array.

• Standard form:

  <TERM>[<INDEX>]
  

Index

• An Expr -> UNumber | String | Ident