codama_attributes/codama_directives/
codama_directive.rs

1use crate::{
2    AccountDirective, ArgumentDirective, AttributeContext, DefaultValueDirective,
3    DiscriminatorDirective, EncodingDirective, EnumDiscriminatorDirective, ErrorDirective,
4    FieldDirective, FixedSizeDirective, NameDirective, PdaDirective, SeedDirective,
5    SizePrefixDirective, TypeDirective,
6};
7use codama_syn_helpers::{extensions::*, Meta};
8use derive_more::derive::From;
9
10#[derive(Debug, PartialEq, From)]
11pub enum CodamaDirective {
12    // Type directives.
13    Type(TypeDirective),
14    Encoding(EncodingDirective),
15    Field(FieldDirective),
16    FixedSize(FixedSizeDirective),
17    SizePrefix(SizePrefixDirective),
18
19    // Default value directive.
20    DefaultValue(DefaultValueDirective),
21
22    // Multi-purpose directives.
23    Discriminator(DiscriminatorDirective),
24    EnumDiscriminator(EnumDiscriminatorDirective),
25    Name(NameDirective),
26    Seed(SeedDirective),
27
28    // Account directives.
29    Pda(PdaDirective),
30
31    // Instruction directives.
32    Account(AccountDirective),
33    Argument(ArgumentDirective),
34
35    // Error directives.
36    Error(ErrorDirective),
37}
38
39impl CodamaDirective {
40    pub fn parse(meta: &Meta, ctx: &AttributeContext) -> syn::Result<Self> {
41        let path = meta.path()?;
42        match path.to_string().as_str() {
43            // Type directives.
44            "type" => Ok(TypeDirective::parse(meta)?.into()),
45            "encoding" => Ok(EncodingDirective::parse(meta)?.into()),
46            "field" => Ok(FieldDirective::parse(meta)?.into()),
47            "fixed_size" => Ok(FixedSizeDirective::parse(meta)?.into()),
48            "size_prefix" => Ok(SizePrefixDirective::parse(meta)?.into()),
49
50            // Default value directive.
51            "default_value" => Ok(DefaultValueDirective::parse(meta)?.into()),
52            "value" => Ok(DefaultValueDirective::parse(meta)?.into()),
53
54            // Multi-purpose directives.
55            "discriminator" => Ok(DiscriminatorDirective::parse(meta)?.into()),
56            "enum_discriminator" => Ok(EnumDiscriminatorDirective::parse(meta)?.into()),
57            "name" => Ok(NameDirective::parse(meta)?.into()),
58            "seed" => Ok(SeedDirective::parse(meta, ctx)?.into()),
59
60            // Account directives.
61            "pda" => Ok(PdaDirective::parse(meta)?.into()),
62
63            // Instruction directives.
64            "account" => Ok(AccountDirective::parse(meta, ctx)?.into()),
65            "argument" => Ok(ArgumentDirective::parse(meta)?.into()),
66
67            // Error directives.
68            "error" => Ok(ErrorDirective::parse(meta)?.into()),
69
70            _ => Err(path.error("unrecognized codama directive")),
71        }
72    }
73
74    pub fn name(&self) -> &'static str {
75        match self {
76            // Type directives.
77            Self::Type(_) => "type",
78            Self::Encoding(_) => "encoding",
79            Self::Field(_) => "field",
80            Self::FixedSize(_) => "fixed_size",
81            Self::SizePrefix(_) => "size_prefix",
82
83            // Default value directive.
84            Self::DefaultValue(_) => "default_value | value",
85
86            // Multi-purpose directives.
87            Self::Discriminator(_) => "discriminator",
88            Self::EnumDiscriminator(_) => "enum_discriminator",
89            Self::Name(_) => "name",
90            Self::Seed(_) => "seed",
91
92            // Account directives.
93            Self::Pda(_) => "pda",
94
95            // Instruction directives.
96            Self::Account(_) => "account",
97            Self::Argument(_) => "argument",
98
99            // Error directives.
100            Self::Error(_) => "error",
101        }
102    }
103}
codama_attributes/codama_directives/codama_directive.rs

codama_attributes/codama_directives/
codama_directive.rs
