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use std::fmt::Debug;
use clap::ValueEnum;
use super::{LanguageScoper, QuerySource, TSLanguage, TSQuery, TSQueryError, TreeSitterRegex};
use crate::find::Find;
use crate::scoping::langs::IGNORE;
/// A compiled query for the Hashicorp Configuration language.
#[derive(Debug)]
pub struct CompiledQuery(super::CompiledQuery);
impl TryFrom<QuerySource> for CompiledQuery {
type Error = TSQueryError;
/// Create a new compiled query for the Hashicorp Configuration language.
///
/// # Errors
///
/// See the concrete type of the [`TSQueryError`](tree_sitter::QueryError)variant for when this method errors.
fn try_from(query: QuerySource) -> Result<Self, Self::Error> {
let q = super::CompiledQuery::from_source(&tree_sitter_hcl::LANGUAGE.into(), &query)?;
Ok(Self(q))
}
}
impl From<PreparedQuery> for CompiledQuery {
fn from(query: PreparedQuery) -> Self {
Self(super::CompiledQuery::from_prepared_query(
&tree_sitter_hcl::LANGUAGE.into(),
&query.as_string(),
))
}
}
/// Prepared tree-sitter queries for Hcl.
#[derive(Debug, Clone, ValueEnum)]
pub enum PreparedQuery {
/// `variable` blocks (in their entirety).
Variable,
/// `resource` blocks (in their entirety).
Resource,
/// `data` blocks (in their entirety).
Data,
/// `output` blocks (in their entirety).
Output,
/// `provider` blocks (in their entirety).
Provider,
/// All `required_providers` from the `terraform` block.
RequiredProviders,
/// Entry from `required_providers` whose given name matches the pattern.
#[value(skip)] // Non-unit enum variants need: https://github.com/clap-rs/clap/issues/2621
RequiredProvidersNamed(TreeSitterRegex),
/// `terraform` blocks (in their entirety).
Terraform,
/// `locals` blocks (in their entirety).
Locals,
/// `module` blocks (in their entirety).
Module,
/// Variable declarations and usages.
Variables,
/// `resource` name declarations and usages.
///
/// In `resource "a" "b"`, only "b" is matched.
ResourceNames,
/// `resource` type declarations and usages.
///
/// In `resource "a" "b"`, only "a" is matched.
ResourceTypes,
/// `data` name declarations and usages.
///
/// In `data "a" "b"`, only "b" is matched.
DataNames,
/// `data` source declarations and usages.
///
/// In `data "a" "b"`, only "a" is matched.
DataSources,
/// Comments.
Comments,
/// Literal strings.
///
/// Excluding resource, variable, ... names as well as interpolation parts.
Strings,
}
impl PreparedQuery {
#[expect(clippy::too_many_lines)] // No good way to avoid
fn as_string(&self) -> String {
// Seems to not play nice with the macro. Put up here, else interpolation is
// affected.
match self {
Self::Variable => r#"
(block
(identifier) @name
(#eq? @name "variable")
) @block
"#
.into(),
Self::Resource => r#"
(block
(identifier) @name
(#eq? @name "resource")
) @block
"#
.into(),
Self::Data => r#"
(block
(identifier) @name
(#eq? @name "data")
) @block
"#
.into(),
Self::Output => r#"
(block
(identifier) @name
(#eq? @name "output")
) @block
"#
.into(),
Self::Provider => r#"
(block
(identifier) @name
(#eq? @name "provider")
) @block
"#
.into(),
Self::RequiredProviders => {
format!(
r#"
(block
(identifier) @{IGNORE}.level1.identifier
(body
(block
(identifier) @{IGNORE}.level2.identifier
(body) @body
(#eq? @{IGNORE}.level2.identifier "required_providers")
)
)
(#eq? @{IGNORE}.level1.identifier "terraform")
)
"#,
)
}
Self::RequiredProvidersNamed(provider) => {
format!(
r#"
(block
(identifier) @{IGNORE}.level1.identifier
(body
(block
(identifier) @{IGNORE}.level2.identifier
(body
(attribute
(identifier) @{IGNORE}.attribute.identifier
(#match? @{IGNORE}.attribute.identifier "{provider}")
(expression) @expr
)
)
(#eq? @{IGNORE}.level2.identifier "required_providers")
)
)
(#eq? @{IGNORE}.level1.identifier "terraform")
)
"#,
)
}
Self::Terraform => r#"
(block
(identifier) @name
(#eq? @name "terraform")
) @block
"#
.into(),
Self::Locals => r#"
(block
(identifier) @name
(#eq? @name "locals")
) @block
"#
.into(),
Self::Module => r#"
(block
(identifier) @name
(#eq? @name "module")
) @block
"#
.into(),
Self::Variables => {
// Capturing nodes with names, such as `@id`, requires names to be
// unique across the *entire* query, else things break. Hence, us
// `@a.b` syntax (which seems undocumented).
format!(
r#"
[
(block
(identifier) @{IGNORE}.declaration
(string_lit (template_literal) @name.declaration)
(#match? @{IGNORE}.declaration "variable")
)
(
(variable_expr
(identifier) @{IGNORE}.usage
(#match? @{IGNORE}.usage "var")
)
.
(get_attr
(identifier) @name.usage
)
)
]
"#
)
}
Self::ResourceNames => {
// Capturing nodes with names, such as `@id`, requires names to be
// unique across the *entire* query, else things break. Hence, us
// `@a.b` syntax (which seems undocumented).
format!(
r#"
[
(block
(identifier) @{IGNORE}.declaration
(string_lit)
(string_lit (template_literal) @name.declaration)
(#match? @{IGNORE}.declaration "resource")
)
(
(variable_expr
(identifier) @{IGNORE}.usage
(#not-any-of? @{IGNORE}.usage
"var"
"data"
"count"
"module"
"local"
)
)
.
(get_attr
(identifier) @name.usage
)
)
]
"#
)
}
Self::ResourceTypes => {
// Capturing nodes with names, such as `@id`, requires names to be
// unique across the *entire* query, else things break. Hence, us
// `@a.b` syntax (which seems undocumented).
format!(
r#"
[
(block
(identifier) @{IGNORE}.declaration
(string_lit (template_literal) @name.type)
(string_lit)
(#match? @{IGNORE}.declaration "resource")
)
(
(variable_expr
.
(identifier) @name.usage
(#not-any-of? @name.usage
"var"
"data"
"count"
"module"
"local"
)
)
.
(get_attr
(identifier)
)
)
]
"#
)
}
Self::DataNames => {
// Capturing nodes with names, such as `@id`, requires names to be
// unique across the *entire* query, else things break. Hence, us
// `@a.b` syntax (which seems undocumented).
format!(
r#"
[
(block
(identifier) @{IGNORE}.declaration
(string_lit)
(string_lit (template_literal) @name.declaration)
(#match? @{IGNORE}.declaration "data")
)
(
(variable_expr
(identifier) @{IGNORE}.usage
(#match? @{IGNORE}.usage "data")
)
.
(get_attr
(identifier)
)
.
(get_attr
(identifier) @name.usage
)
)
]
"#
)
}
Self::DataSources => {
// Capturing nodes with names, such as `@id`, requires names to be
// unique across the *entire* query, else things break. Hence, us
// `@a.b` syntax (which seems undocumented).
format!(
r#"
[
(block
(identifier) @{IGNORE}.declaration
(string_lit (template_literal) @name.provider)
(string_lit)
(#match? @{IGNORE}.declaration "data")
)
(
(variable_expr
(identifier) @{IGNORE}.usage
(#match? @{IGNORE}.usage "data")
)
.
(get_attr
(identifier) @name.provider
)
.
(get_attr
(identifier)
)
)
]
"#
)
}
Self::Comments => "(comment) @comment".into(),
Self::Strings => r"
[
(literal_value
(string_lit
(template_literal) @string.literal
)
)
(quoted_template
(template_literal) @string.template_literal
)
(heredoc_template
(template_literal) @string.heredoc_literal
)
]
"
.into(),
}
}
}
impl LanguageScoper for CompiledQuery {
fn lang() -> TSLanguage {
tree_sitter_hcl::LANGUAGE.into()
}
fn pos_query(&self) -> &TSQuery {
&self.0.positive_query
}
fn neg_query(&self) -> Option<&TSQuery> {
self.0.negative_query.as_ref()
}
}
impl Find for CompiledQuery {
fn extensions(&self) -> &'static [&'static str] {
&["hcl", "tf"]
}
}