Function insert_block

cranelift/codegen/src/ir/layout.rs:937–969

()

    #[test]
    fn insert_block() {
        let mut layout = Layout::new();
        let e0 = Block::new(0);
        let e1 = Block::new(1);
        let e2 = Block::new(2);

        {
            let imm = &layout;
            assert!(!imm.is_block_inserted(e0));
            assert!(!imm.is_block_inserted(e1));

            let v: Vec<Block> = layout.blocks().collect();
            assert_eq!(v, []);
        }

        layout.append_block(e1);
        assert!(!layout.is_block_inserted(e0));
        assert!(layout.is_block_inserted(e1));
        assert!(!layout.is_block_inserted(e2));
        verify(&mut layout, &[(e1, &[])]);

        layout.insert_block(e2, e1);
        assert!(!layout.is_block_inserted(e0));
        assert!(layout.is_block_inserted(e1));
        assert!(layout.is_block_inserted(e2));
        verify(&mut layout, &[(e2, &[]), (e1, &[])]);

        layout.insert_block(e0, e1);
        assert!(layout.is_block_inserted(e0));
        assert!(layout.is_block_inserted(e1));
        assert!(layout.is_block_inserted(e2));
        verify(&mut layout, &[(e2, &[]), (e0, &[]), (e1, &[])]);
    }

    #[test]
    fn insert_block_after() {