alef-codegen 0.15.1

Shared codegen utilities for the alef polyglot binding generator
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
68
69
70
71
72
73
74

use alef_core::ir::EnumDef;

use super::ConversionConfig;
use super::helpers::{binding_to_core_match_arm_ext_cfg, core_enum_path_remapped, core_to_binding_match_arm_ext_cfg};

/// Generate `impl From<BindingEnum> for core::Enum` (binding -> core).
pub fn gen_enum_from_binding_to_core(enum_def: &EnumDef, core_import: &str) -> String {
    gen_enum_from_binding_to_core_cfg(enum_def, core_import, &ConversionConfig::default())
}

/// Generate `impl From<BindingEnum> for core::Enum` with backend-specific config.
pub fn gen_enum_from_binding_to_core_cfg(enum_def: &EnumDef, core_import: &str, config: &ConversionConfig) -> String {
    let core_path = core_enum_path_remapped(enum_def, core_import, config.source_crate_remaps);
    let binding_name = format!("{}{}", config.type_name_prefix, enum_def.name);

    // Pre-compute all arms for the template
    let arms: Vec<String> = enum_def
        .variants
        .iter()
        .map(|variant| {
            binding_to_core_match_arm_ext_cfg(
                &binding_name,
                &variant.name,
                &variant.fields,
                config.binding_enums_have_data,
                config,
            )
        })
        .collect();

    crate::template_env::render(
        "conversions/enum_from_binding_to_core",
        minijinja::context! {
            binding_name => binding_name,
            core_path => core_path,
            arms => arms,
        },
    )
}

/// Generate `impl From<core::Enum> for BindingEnum` (core -> binding).
pub fn gen_enum_from_core_to_binding(enum_def: &EnumDef, core_import: &str) -> String {
    gen_enum_from_core_to_binding_cfg(enum_def, core_import, &ConversionConfig::default())
}

/// Generate `impl From<core::Enum> for BindingEnum` with backend-specific config.
pub fn gen_enum_from_core_to_binding_cfg(enum_def: &EnumDef, core_import: &str, config: &ConversionConfig) -> String {
    let core_path = core_enum_path_remapped(enum_def, core_import, config.source_crate_remaps);
    let binding_name = format!("{}{}", config.type_name_prefix, enum_def.name);

    // Pre-compute all arms for the template
    let arms: Vec<String> = enum_def
        .variants
        .iter()
        .map(|variant| {
            core_to_binding_match_arm_ext_cfg(
                &core_path,
                &variant.name,
                &variant.fields,
                config.binding_enums_have_data,
                config,
            )
        })
        .collect();

    crate::template_env::render(
        "conversions/enum_from_core_to_binding",
        minijinja::context! {
            binding_name => binding_name,
            core_path => core_path,
            arms => arms,
        },
    )
}