backyard-generator 0.1.10

Convert AST node back to PHP code.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67

use backyard_nodes::{ cast_node, Node, NodeType, NodeWrapper };

use crate::generator::{ Builder, Generator, GeneratorArgument };

use super::block::BlockGenerator;

pub struct IfGenerator;

impl IfGenerator {
  pub fn generate<'arena>(
    generator: &mut Generator<'arena, '_>,
    builder: &mut Builder,
    node: &Node<'arena>
  ) {
    let node = cast_node!(If, &node.wrapper);

    builder.push("if (");
    generator.generate_node(builder, &node.condition, &mut GeneratorArgument::default());
    builder.push(")");

    if node.is_short {
      if let Some(n) = &node.invalid {
        BlockGenerator::generate(generator, builder, &node.valid, Some(""));
        Self::generate_else(generator, builder, n);
      } else {
        BlockGenerator::generate(generator, builder, &node.valid, Some("endif;"));
      }
    } else {
      if node.valid.node_type == NodeType::Block {
        BlockGenerator::generate(generator, builder, &node.valid, None);
      } else {
        builder.push(" ");
        generator.generate_node(builder, &node.valid, &mut GeneratorArgument::for_block());
      }
      if let Some(n) = &node.invalid {
        if node.valid.node_type == NodeType::Block {
          builder.push(" ");
        } else {
          builder.new_line();
        }
        generator.generate_node(builder, n, &mut GeneratorArgument::default());
      }
    }
  }

  pub fn generate_else<'arena>(
    generator: &mut Generator<'arena, '_>,
    builder: &mut Builder,
    node: &Node<'arena>
  ) {
    let node = cast_node!(Else, &node.wrapper);

    builder.push("else");
    match node.body.node_type {
      NodeType::If => {
        Self::generate(generator, builder, &node.body);
      }
      NodeType::Block => {
        BlockGenerator::generate(generator, builder, &node.body, node.is_short.then_some("endif;"));
      }
      _ => {
        builder.push(" ");
        generator.generate_node(builder, &node.body, &mut GeneratorArgument::for_block());
      }
    }
  }
}