From 89789777926bb4b23089825679379aa872ba16de Mon Sep 17 00:00:00 2001
From: Frederik Hennig <frederik.hennig@fau.de>
Date: Sun, 30 Jun 2024 13:45:21 +0200
Subject: [PATCH] hold back expr evaluation for now
---
src/pystencils/backend/ast/expressions.py | 33 -----------------------
1 file changed, 33 deletions(-)
diff --git a/src/pystencils/backend/ast/expressions.py b/src/pystencils/backend/ast/expressions.py
index 9a388a160..5e6adfa4f 100644
--- a/src/pystencils/backend/ast/expressions.py
+++ b/src/pystencils/backend/ast/expressions.py
@@ -757,36 +757,3 @@ class PsArrayInitList(PsExpression):
def __repr__(self) -> str:
return f"PsArrayInitList({repr(self._items)})"
-
-
-def evaluate_expression(
- expr: PsExpression, valuation: dict[str | PsSymbol, Any]
-) -> Any:
- """Evaluate a pystencils backend expression tree with values assigned to symbols according to the given valuation.
-
- Only a subset of expression nodes can be processed by this evaluator.
- """
-
- def visit(node):
- match node:
- case PsSymbolExpr(symb):
- if value := valuation.get(symb, None) is not None:
- return value
- else:
- return valuation[symb.name]
-
- case PsConstantExpr(c):
- return c.value
-
- case PsUnOp(op1) if node.python_operator is not None:
- return node.python_operator(visit(op1))
-
- case PsBinOp(op1, op2) if node.python_operator is not None:
- return node.python_operator(visit(op1), visit(op2))
-
- case other:
- raise NotImplementedError(
- f"Unable to evaluate {other}: No implementation available."
- )
-
- return visit(expr)
--
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