127ef98486
Introduces a new enum which represents the different types of possible values, and modifies the rest of the existing code to wrap/unwrap these enum variants correctly. Notably in the vm module, a new macro has been introduced that makes it possible to encode a type expectation and return a runtime error in case of a type mismatch. Change-Id: I325b5e31e395c62d8819ab2af6d398e1277333c0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2570 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
48 lines
1 KiB
Rust
48 lines
1 KiB
Rust
use super::*;
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use crate::Lox;
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fn expect_num(code: &str, value: f64) {
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let result = Interpreter::create()
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.interpret(code.into())
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.expect("evaluation failed");
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assert_eq!(result, value::Value::Number(value));
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}
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#[test]
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fn numbers() {
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expect_num("1", 1.0);
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expect_num("13.37", 13.37);
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}
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#[test]
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fn negative_numbers() {
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// Note: This technically tests unary operators.
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expect_num("-1", -1.0);
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expect_num("-13.37", -13.37);
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}
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#[test]
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fn terms() {
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expect_num("1 + 2", 3.0);
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expect_num("3 - 1", 2.0);
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expect_num("0.7 + 0.3", 1.0);
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expect_num("1 + -3", -2.0);
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expect_num("-1 - -1", 0.0);
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expect_num("10 - -10 + 10", 30.0);
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}
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#[test]
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fn factors() {
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expect_num("1 * 2", 2.0);
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expect_num("10 / 5", 2.0);
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expect_num("0.7 * 4 / 1.4", 2.0);
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expect_num("10 * -10 / 10", -10.0);
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}
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#[test]
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fn arithmetic() {
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expect_num("10 - 3 * 2", 4.0);
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expect_num("-4 * -4 + (14 - 5)", 25.0);
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expect_num("(702 + 408) - ((239 - 734) / -5) + -4", 1007.0);
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}
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