git.delta.rocks / jrsonnet / refs/commits / 31dfb91f8ba3

--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target

--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,59 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "jsonnet-parser"
+version = "0.1.0"
+dependencies = [
+ "peg",
+]
+
+[[package]]
+name = "peg"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9075875c14bb21f25f11cad4b6ad2e4dd443b8fb83900b2fbdd6ebd744b82e97"
+dependencies = [
+ "peg-macros",
+ "peg-runtime",
+]
+
+[[package]]
+name = "peg-macros"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c24c165fd39e995246140cc78df55c56c6733ba87e6658cb3e197b8856c62852"
+dependencies = [
+ "peg-runtime",
+ "proc-macro2",
+ "quote",
+]
+
+[[package]]
+name = "peg-runtime"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c1a2897e69d986c7986747ebad425cf03746ec5e3e09bb3b2600f91301ba864"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8872cf6f48eee44265156c111456a700ab3483686b3f96df4cf5481c89157319"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42934bc9c8ab0d3b273a16d8551c8f0fcff46be73276ca083ec2414c15c4ba5e"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"

--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,2 @@
+[workspace]
+members = ["crates/jsonnet-parser"]

--- /dev/null
+++ b/crates/jsonnet-parser/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "jsonnet-parser"
+version = "0.1.0"
+authors = ["Лач <iam@lach.pw>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+peg = "0.6.2"

--- /dev/null
+++ b/crates/jsonnet-parser/src/expr.rs
@@ -0,0 +1,206 @@
+#[derive(Debug, Clone, PartialEq)]
+pub enum FieldName {
+	/// {fixed: 2}
+	Fixed(String),
+	/// {["dyn"+"amic"]: 3}
+	Dyn(Box<Expr>),
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum Visibility {
+	/// :
+	Normal,
+	/// ::
+	Hidden,
+	/// :::
+	Unhide,
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct AssertStmt(pub Box<Expr>, pub Option<Box<Expr>>);
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum FieldMember {
+	Value {
+		name: FieldName,
+		plus: bool,
+		visibility: Visibility,
+		value: Expr,
+	},
+	Function {
+		name: FieldName,
+		params: Params,
+		visibility: Visibility,
+		value: Expr,
+	},
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum Member {
+	Field(FieldMember),
+	BindStmt(Bind),
+	AssertStmt(AssertStmt),
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum UnaryOp {
+	Plus,
+	Minus,
+	BitNot,
+	Not,
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum BinaryOp {
+	Mul,
+	Div,
+	Mod,
+
+	Add,
+	Sub,
+
+	Lhs,
+	Rhs,
+
+	Lt,
+	Gt,
+	Lte,
+	Gte,
+
+	In,
+
+	Eq,
+	Ne,
+
+	BitAnd,
+	BitOr,
+	And,
+	Or,
+
+	BitXor,
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum Param {
+	Positional(String),
+	Named(String, Box<Expr>),
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct Params(pub Vec<Param>);
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum Arg {
+	Positional(Box<Expr>),
+	Named(String, Box<Expr>),
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct Args(pub Vec<Arg>);
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum Bind {
+	Value(String, Box<Expr>),
+	Function(String, Params, Box<Expr>),
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct IfSpec(pub Box<Expr>);
+#[derive(Debug, Clone, PartialEq)]
+pub struct ForSpec(pub String, pub Vec<IfSpec>);
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum CompSpec {
+	IfSpec(IfSpec),
+	ForSpec(ForSpec),
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum ObjBody {
+	MemberList(Vec<Member>),
+	ObjComp {
+		pre_locals: Vec<Bind>,
+		key: Box<Expr>,
+		value: Box<Expr>,
+		post_locals: Vec<Bind>,
+		first: ForSpec,
+		rest: Vec<CompSpec>,
+	},
+}
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum Literal {
+	Null,
+	True,
+	False,
+	This,
+	Super,
+	Dollar,
+}
+
+/// Syntax base
+#[derive(Debug, Clone, PartialEq)]
+pub enum Expr {
+	/// Plain value: null/true/false
+	Literal(Literal),
+
+	/// String value: "hello"
+	Str(String),
+	/// Number: 1, 2.0, 2e+20
+	Num(f64),
+	/// Variable name: test
+	Var(String),
+
+	/// Array of expressions: [1, 2, "Hello"]
+	Arr(Vec<Expr>),
+	/// Array comprehension:
+	/// ```jsonnet
+	///  ingredients: [
+	///    { kind: kind, qty: 4 / 3 }
+	///    for kind in [
+	///      'Honey Syrup',
+	///      'Lemon Juice',
+	///      'Farmers Gin',
+	///    ]
+	///  ],
+	/// ```
+	ArrComp(Box<Expr>, Vec<ForSpec>),
+
+	/// Object: {a: 2}
+	Obj(ObjBody),
+	/// Object extension: var1 {b: 2}
+	ObjExtend(Box<Expr>, ObjBody),
+
+	/// (obj)
+	Parened(Box<Expr>),
+
+	Params(Params),
+	Args(Args),
+
+	UnaryOp(UnaryOp, Box<Expr>),
+	BinaryOp(Box<Expr>, BinaryOp, Box<Expr>),
+	AssertExpr(AssertStmt, Box<Expr>),
+	LocalExpr(Vec<Bind>, Box<Expr>),
+
+	Bind(Bind),
+	Import(String),
+	ImportStr(String),
+	Error(Box<Expr>),
+	Apply(Box<Expr>, Args),
+	Select(Box<Expr>, String),
+	Index(Box<Expr>, Box<Expr>),
+	Slice {
+		value: Box<Expr>,
+		start: Option<Box<Expr>>,
+		end: Option<Box<Expr>>,
+		step: Option<Box<Expr>>,
+	},
+	Function(Params, Box<Expr>),
+	IfElse {
+		cond: IfSpec,
+		cond_then: Box<Expr>,
+		cond_else: Option<Box<Expr>>,
+	},
+	IfSpec(IfSpec),
+	ForSpec(ForSpec),
+}

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