From 482eed0ae339e977a618c4ab60525596426cf967 Mon Sep 17 00:00:00 2001
From: Frederick Yin <fkfd@fkfd.me>
Date: Wed, 31 Aug 2022 16:59:55 +0800
Subject: hackc: idk, statements and expressions?

---
 projects/hackc/classes.py     |  4 ++++
 projects/hackc/expressions.py | 12 +++++++++++-
 projects/hackc/statements.py  |  3 +++
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/projects/hackc/classes.py b/projects/hackc/classes.py
index 8dc1dd5..a8d446a 100644
--- a/projects/hackc/classes.py
+++ b/projects/hackc/classes.py
@@ -311,3 +311,7 @@ class Subroutine:
     def print_verbose(self):
         print(f"Define {self.category} {self.type} {self.name}")
         self.params.print_verbose()
+        for variable in self.variables:
+            variable.print_verbose()
+        for statement in self.statements:
+            statement.print_verbose()
diff --git a/projects/hackc/expressions.py b/projects/hackc/expressions.py
index de58528..3bc83d2 100644
--- a/projects/hackc/expressions.py
+++ b/projects/hackc/expressions.py
@@ -1,4 +1,5 @@
 from .tokens import Token
+from .utils import *
 
 OPS = "+-*/&|<>="
 UNARY_OPS = "-~"
@@ -15,7 +16,7 @@ class Term:
             return (None, 0)
         if tokens[0].type in ["integer", "string"] or tokens[0] in CONSTANTS:
             return (ConstantTerm(tokens[0]), 1)
-        if tokens[0] in UNARY_OPS:
+        if tokens[0].token in UNARY_OPS:
             term, dt = Term.from_tokens(tokens[1:])
             return (UnaryTerm(tokens[0], term), dt + 1)
 
@@ -24,6 +25,9 @@ class ConstantTerm:
     def __init__(self, term: Token):
         self.term = term
 
+    def __str__(self):
+        return self.term.token
+
 
 class VarTerm:
     def __init__(self, var: Token, subscript=None):
@@ -74,3 +78,9 @@ class Expression:
         t += dt
 
         return (Expression(lhs, op, rhs), t)
+
+    def __str__(self):
+        if self.op is not None:
+            return f"({self.lhs}) {self.op} ({self.rhs})"
+        else:
+            return str(self.lhs)
diff --git a/projects/hackc/statements.py b/projects/hackc/statements.py
index e8bc0b3..16c123e 100644
--- a/projects/hackc/statements.py
+++ b/projects/hackc/statements.py
@@ -1,4 +1,5 @@
 from .expressions import Expression
+from .utils import *
 
 class Statement:
     def __init__(self):
@@ -47,3 +48,5 @@ class LetStatement:
         t += 1
         return (LetStatement(name, expr), t)
 
+    def print_verbose(self):
+        print(f"Let {self.name} be {self.expr}")
-- 
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