diff options
Diffstat (limited to 'compilador/astree/expr.py')
| -rw-r--r-- | compilador/astree/expr.py | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/compilador/astree/expr.py b/compilador/astree/expr.py index 1bb7f4f..d5a2cb0 100644 --- a/compilador/astree/expr.py +++ b/compilador/astree/expr.py @@ -3,10 +3,19 @@ from enum import Enum, auto from typing import List, Optional from astree.type import Type +from astree.ident import Ident Expr = None -# An assignment expression +# An identifier access expression. +# +# a +AccessIdentifier = Ident + +# An access expression. +AccessExpr = AccessIdentifier + +# An assignment expression. # # a = 10 @dataclass @@ -14,7 +23,7 @@ class AssignExpr: _object: Expr value: Expr -# A binary arithmetic operator +# A binary arithmetic operator. class BinarithmOp(Enum): BAND = '&' BOR = '|' @@ -92,19 +101,23 @@ class IfExpr: # A print statement. # # imprimir a -PrintExpr = Expr +@dataclass +class PrintExpr: + expr: Expr # A read statement. # # leer a -ReadExpr = Expr +@dataclass +class ReadExpr: + expr: AccessExpr # A return statement. # # return a ReturnExpr = Optional[Expr] -# A Javañol expression -Expr = (AssignExpr | BinarithmExpr | CallExpr | ConstantExpr | - ForExpr | IfExpr | CompoundExpr | PrintExpr | - ReadExpr | ReturnExpr) +# A Javañol expression. +Expr = (AccessExpr | AssignExpr | BinarithmExpr | CallExpr | + ConstantExpr | ForExpr | IfExpr | CompoundExpr | + PrintExpr | ReadExpr | ReturnExpr) |