Change dependency graph for qsc and qsc_qasm3 (#2134)

This change reorganizes the deps for qsc, qsc_qasm3, and the pip
package. The `qsc` crate will now depend on `qsc_qasm3` and reexport the
appropriate API surface. The pip package now consumes that exported API
from `qsc`.

compiler/qsc/Cargo.toml

@@ -31,6 +31,7 @@ qsc_passes = { path = "../qsc_passes" }
 qsc_parse = { path = "../qsc_parse" }
 qsc_partial_eval = { path = "../qsc_partial_eval" }
 qsc_project = { path = "../qsc_project", features = ["fs"] }
+qsc_qasm3 = { path = "../qsc_qasm3", features = ["fs"] }
 qsc_rca = { path = "../qsc_rca" }
 qsc_circuit = { path = "../qsc_circuit" }
 rustc-hash = { workspace = true }

compiler/qsc/src/lib.rs

@@ -74,3 +74,9 @@ pub mod parse {
 pub mod partial_eval {
     pub use qsc_partial_eval::Error;
 }
+
+pub mod qasm3 {
+    pub use qsc_qasm3::io::*;
+    pub use qsc_qasm3::parse::*;
+    pub use qsc_qasm3::*;
+}

compiler/qsc_qasm3/Cargo.toml

@@ -11,7 +11,10 @@ version.workspace = true
 bitflags = { workspace = true }
 num-bigint = { workspace = true }
 miette = { workspace = true }
-qsc = { path = "../qsc" }
+qsc_ast = { path = "../qsc_ast" }
+qsc_data_structures = { path = "../qsc_data_structures" }
+qsc_frontend = { path = "../qsc_frontend" }
+qsc_parse = { path = "../qsc_parse" }
 rustc-hash = { workspace = true }
 thiserror = { workspace = true }
 oq3_source_file = { workspace = true }
@@ -27,6 +30,7 @@ indoc = { workspace = true }
 miette = { workspace = true, features = ["fancy"] }
 # Self import adding fs feature so that we can test
 # loading qasm from file.
+qsc = { path = "../qsc" }
 qsc_qasm3 = { path = ".", features = ["fs"] }
 
 [features]

compiler/qsc_qasm3/src/ast_builder.rs

@@ -5,14 +5,12 @@ use std::rc::Rc;
 
 use num_bigint::BigInt;
 
-use qsc::{
-    ast::{
-        self, Attr, Block, CallableBody, CallableDecl, CallableKind, Expr, ExprKind, Ident, Item,
-        Lit, Mutability, NodeId, Pat, PatKind, Path, PathKind, QubitInit, QubitInitKind,
-        QubitSource, Stmt, StmtKind, TopLevelNode, Ty, TyKind,
-    },
-    Span,
+use qsc_ast::ast::{
+    self, Attr, Block, CallableBody, CallableDecl, CallableKind, Expr, ExprKind, Ident, Item, Lit,
+    Mutability, NodeId, Pat, PatKind, Path, PathKind, QubitInit, QubitInitKind, QubitSource, Stmt,
+    StmtKind, TopLevelNode, Ty, TyKind,
 };
+use qsc_data_structures::span::Span;
 
 use crate::{
     runtime::RuntimeFunctions,
@@ -203,7 +201,7 @@ where
     }
 }
 
-pub(crate) fn build_lit_result_expr(value: qsc::ast::Result, span: Span) -> Expr {
+pub(crate) fn build_lit_result_expr(value: qsc_ast::ast::Result, span: Span) -> Expr {
     Expr {
         id: NodeId::default(),
         span,
@@ -231,15 +229,15 @@ pub(crate) fn build_lit_result_array_expr_from_bitstring<S: AsRef<str>>(
     build_lit_result_array_expr(values, span)
 }
 
-pub(crate) fn build_lit_result_array_expr(values: Vec<qsc::ast::Result>, span: Span) -> Expr {
+pub(crate) fn build_lit_result_array_expr(values: Vec<qsc_ast::ast::Result>, span: Span) -> Expr {
     let exprs: Vec<_> = values
         .into_iter()
         .map(|v| build_lit_result_expr(v, Span::default()))
         .collect();
     build_expr_array_expr(exprs, span)
 }
 
-pub(crate) fn build_expr_array_expr(values: Vec<qsc::ast::Expr>, span: Span) -> Expr {
+pub(crate) fn build_expr_array_expr(values: Vec<qsc_ast::ast::Expr>, span: Span) -> Expr {
     let exprs: Vec<_> = values.into_iter().map(Box::new).collect();
     Expr {
         id: NodeId::default(),
@@ -314,7 +312,7 @@ pub(crate) fn build_binary_expr(
     }
 }
 
-pub(crate) fn is_complex_binop_supported(op: qsc::ast::BinOp) -> bool {
+pub(crate) fn is_complex_binop_supported(op: qsc_ast::ast::BinOp) -> bool {
     matches!(
         op,
         ast::BinOp::Add | ast::BinOp::Sub | ast::BinOp::Mul | ast::BinOp::Div | ast::BinOp::Exp
@@ -1005,7 +1003,7 @@ pub(crate) fn build_top_level_ns_with_item<S: AsRef<str>>(
     ns: S,
     entry: ast::Item,
 ) -> TopLevelNode {
-    TopLevelNode::Namespace(qsc::ast::Namespace {
+    TopLevelNode::Namespace(qsc_ast::ast::Namespace {
         id: NodeId::default(),
         span: whole_span,
         name: [Ident {
@@ -1031,10 +1029,10 @@ pub(crate) fn build_operation_with_stmts<S: AsRef<str>>(
     // as an entry point. We will get a Q# compilation error if we
     // attribute an operation with EntryPoint and it has input parameters.
     if input_pats.is_empty() {
-        attrs.push(Box::new(qsc::ast::Attr {
+        attrs.push(Box::new(qsc_ast::ast::Attr {
             id: NodeId::default(),
             span: Span::default(),
-            name: Box::new(qsc::ast::Ident {
+            name: Box::new(qsc_ast::ast::Ident {
                 name: Rc::from("EntryPoint"),
                 ..Default::default()
             }),
@@ -1044,15 +1042,15 @@ pub(crate) fn build_operation_with_stmts<S: AsRef<str>>(
     let input_pats = input_pats.into_iter().map(Box::new).collect::<Vec<_>>();
     let input = match input_pats.len() {
         0 => Box::new(Pat {
-            kind: Box::new(qsc::ast::PatKind::Tuple(input_pats.into_boxed_slice())),
+            kind: Box::new(qsc_ast::ast::PatKind::Tuple(input_pats.into_boxed_slice())),
             ..Default::default()
         }),
         1 => Box::new(Pat {
-            kind: Box::new(qsc::ast::PatKind::Paren(input_pats[0].clone())),
+            kind: Box::new(qsc_ast::ast::PatKind::Paren(input_pats[0].clone())),
             ..Default::default()
         }),
-        _ => Box::new(qsc::ast::Pat {
-            kind: Box::new(qsc::ast::PatKind::Tuple(input_pats.into_boxed_slice())),
+        _ => Box::new(qsc_ast::ast::Pat {
+            kind: Box::new(qsc_ast::ast::PatKind::Tuple(input_pats.into_boxed_slice())),
             ..Default::default()
         }),
     };
@@ -1062,38 +1060,40 @@ pub(crate) fn build_operation_with_stmts<S: AsRef<str>>(
         .map(Box::new)
         .collect::<Vec<_>>()
         .into_boxed_slice();
-    qsc::ast::Item {
+    qsc_ast::ast::Item {
         id: NodeId::default(),
         span: whole_span,
         doc: "".into(),
         attrs: attrs.into_boxed_slice(),
-        kind: Box::new(qsc::ast::ItemKind::Callable(Box::new(
-            qsc::ast::CallableDecl {
+        kind: Box::new(qsc_ast::ast::ItemKind::Callable(Box::new(
+            qsc_ast::ast::CallableDecl {
                 id: NodeId::default(),
                 span: whole_span,
-                kind: qsc::ast::CallableKind::Operation,
-                name: Box::new(qsc::ast::Ident {
+                kind: qsc_ast::ast::CallableKind::Operation,
+                name: Box::new(qsc_ast::ast::Ident {
                     name: Rc::from(name.as_ref()),
                     ..Default::default()
                 }),
                 generics: Box::new([]),
                 input,
                 output: Box::new(output_ty),
                 functors: None,
-                body: Box::new(qsc::ast::CallableBody::Block(Box::new(qsc::ast::Block {
-                    id: NodeId::default(),
-                    span: whole_span,
-                    stmts,
-                }))),
+                body: Box::new(qsc_ast::ast::CallableBody::Block(Box::new(
+                    qsc_ast::ast::Block {
+                        id: NodeId::default(),
+                        span: whole_span,
+                        stmts,
+                    },
+                ))),
             },
         ))),
     }
 }
 
 pub(crate) fn build_arg_pat(name: String, span: Span, ty: Ty) -> Pat {
-    qsc::ast::Pat {
-        kind: Box::new(qsc::ast::PatKind::Bind(
-            Box::new(qsc::ast::Ident {
+    qsc_ast::ast::Pat {
+        kind: Box::new(qsc_ast::ast::PatKind::Bind(
+            Box::new(qsc_ast::ast::Ident {
                 name: Rc::from(name),
                 span,
                 ..Default::default()

compiler/qsc_qasm3/src/compile.rs

@@ -52,9 +52,9 @@ use oq3_syntax::ast::{
 };
 use oq3_syntax::SyntaxNode;
 use oq3_syntax::{AstNode, HasTextName};
-use qsc::ast;
-use qsc::Span;
-use qsc::{error::WithSource, SourceMap};
+use qsc_ast::ast;
+use qsc_data_structures::span::Span;
+use qsc_frontend::{compile::SourceMap, error::WithSource};
 
 use crate::{parse::QasmSource, QasmCompileUnit};
 

compiler/qsc_qasm3/src/lib.rs

@@ -19,7 +19,9 @@ pub(crate) mod tests;
 use std::{fmt::Write, sync::Arc};
 
 use miette::Diagnostic;
-use qsc::Span;
+use qsc_ast::ast::Package;
+use qsc_data_structures::span::Span;
+use qsc_frontend::{compile::SourceMap, error::WithSource};
 use thiserror::Error;
 
 #[derive(Clone, Debug, Diagnostic, Eq, Error, PartialEq)]
@@ -458,8 +460,6 @@ pub enum ProgramType {
     Fragments,
 }
 
-use qsc::{ast::Package, error::WithSource, SourceMap};
-
 /// Represents the signature of an operation.
 /// This is used to create a function signature for the
 /// operation that is created from the QASM source code.

compiler/qsc_qasm3/src/oqasm_helpers.rs

@@ -3,7 +3,7 @@
 
 use oq3_semantics::types::Type;
 use oq3_syntax::ast::{ArithOp, BinaryOp, Designator, Expr, Literal, LiteralKind};
-use qsc::Span;
+use qsc_data_structures::span::Span;
 
 /// Extracts a Q# ```Span``` from the QASM3 syntax named element
 pub(crate) fn span_for_named_item<T: oq3_syntax::ast::HasName>(value: &T) -> Span {

compiler/qsc_qasm3/src/parse.rs

@@ -5,7 +5,8 @@ use crate::io::SourceResolver;
 use crate::oqasm_helpers::text_range_to_span;
 use oq3_syntax::SyntaxNode;
 use oq3_syntax::{ast::Stmt, ParseOrErrors, SourceFile};
-use qsc::{error::WithSource, SourceMap};
+use qsc_frontend::compile::SourceMap;
+use qsc_frontend::error::WithSource;
 use std::path::{Path, PathBuf};
 use std::sync::Arc;
 

compiler/qsc_qasm3/src/runtime.rs

@@ -3,10 +3,8 @@
 
 use bitflags::bitflags;
 
-use qsc::{
-    ast::{Stmt, TopLevelNode},
-    LanguageFeatures,
-};
+use qsc_ast::ast::{Stmt, TopLevelNode};
+use qsc_data_structures::language_features::LanguageFeatures;
 
 /// Runtime functions that are used in the generated AST.
 /// These functions are not part of the QASM3 standard, but are used to implement
@@ -200,7 +198,7 @@ pub(crate) fn get_result_array_as_int_be_decl() -> Stmt {
 }
 
 fn parse_stmt(name: &str) -> Stmt {
-    let (nodes, errors) = qsc::parse::top_level_nodes(name, LanguageFeatures::default());
+    let (nodes, errors) = qsc_parse::top_level_nodes(name, LanguageFeatures::default());
     assert!(errors.is_empty(), "Failed to parse POW: {errors:?}");
     assert!(
         nodes.len() == 1,

compiler/qsc_qasm3/src/symbols.rs

@@ -2,7 +2,7 @@
 // Licensed under the MIT License.
 
 use oq3_semantics::types::{IsConst, Type};
-use qsc::Span;
+use qsc_data_structures::span::Span;
 use rustc_hash::FxHashMap;
 
 /// We need a symbol table to keep track of the symbols in the program.

compiler/qsc_qasm3/src/types.rs

@@ -4,7 +4,7 @@
 use std::fmt::{self, Display, Formatter};
 
 use oq3_semantics::types::ArrayDims;
-use qsc::Span;
+use qsc_data_structures::span::Span;
 use rustc_hash::FxHashMap;
 
 thread_local! {
@@ -73,7 +73,7 @@ pub(crate) fn get_qsharp_gate_name<S: AsRef<str>>(gate_name: S) -> Option<&'stat
 #[derive(Debug, Clone, PartialEq)]
 pub struct QasmTypedExpr {
     pub ty: oq3_semantics::types::Type,
-    pub expr: qsc::ast::Expr,
+    pub expr: qsc_ast::ast::Expr,
 }
 
 #[derive(Clone, Debug, PartialEq)]

pip/Cargo.toml

@@ -14,7 +14,6 @@ noisy_simulator = { path = "../noisy_simulator" }
 num-bigint = { workspace = true }
 num-complex = { workspace = true }
 qsc = { path = "../compiler/qsc" }
-qsc_qasm3 = { path = "../compiler/qsc_qasm3", features = ["fs"]}
 resource_estimator = { path = "../resource_estimator" }
 miette = { workspace = true, features = ["fancy-no-syscall"] }
 rustc-hash = { workspace = true }

pip/src/interop.rs

@@ -10,16 +10,16 @@ use pyo3::prelude::*;
 use pyo3::types::{PyDict, PyList};
 use qsc::interpret::output::Receiver;
 use qsc::interpret::{into_errors, Interpreter};
+use qsc::qasm3::io::SourceResolver;
+use qsc::qasm3::{
+    qasm_to_program, CompilerConfig, OperationSignature, QasmCompileUnit, QubitSemantics,
+};
 use qsc::target::Profile;
 use qsc::{
     ast::Package, error::WithSource, interpret, project::FileSystem, LanguageFeatures,
     PackageStore, SourceMap,
 };
 use qsc::{Backend, PackageType, SparseSim};
-use qsc_qasm3::io::SourceResolver;
-use qsc_qasm3::{
-    qasm_to_program, CompilerConfig, OperationSignature, QasmCompileUnit, QubitSemantics,
-};
 
 use crate::fs::file_system;
 use crate::interpreter::{
@@ -261,7 +261,7 @@ pub(crate) fn compile_qasm<S: AsRef<str>, R: SourceResolver>(
     program_ty: ProgramType,
     output_semantics: OutputSemantics,
 ) -> PyResult<QasmCompileUnit> {
-    let parse_result = qsc_qasm3::parse::parse_source(
+    let parse_result = qsc::qasm3::parse::parse_source(
         source,
         format!("{}.qasm", operation_name.as_ref()),
         resolver,
@@ -494,7 +494,7 @@ fn into_estimation_errors(errors: Vec<interpret::Error>) -> Vec<resource_estimat
 }
 
 /// Formats a list of QASM3 errors into a single string.
-pub(crate) fn format_qasm_errors(errors: Vec<WithSource<qsc_qasm3::Error>>) -> String {
+pub(crate) fn format_qasm_errors(errors: Vec<WithSource<qsc::qasm3::Error>>) -> String {
     errors
         .into_iter()
         .map(|e| {

pip/src/interpreter.rs

@@ -184,12 +184,12 @@ pub(crate) enum OutputSemantics {
     ResourceEstimation,
 }
 
-impl From<OutputSemantics> for qsc_qasm3::OutputSemantics {
+impl From<OutputSemantics> for qsc::qasm3::OutputSemantics {
     fn from(output_semantics: OutputSemantics) -> Self {
         match output_semantics {
-            OutputSemantics::Qiskit => qsc_qasm3::OutputSemantics::Qiskit,
-            OutputSemantics::OpenQasm => qsc_qasm3::OutputSemantics::OpenQasm,
-            OutputSemantics::ResourceEstimation => qsc_qasm3::OutputSemantics::ResourceEstimation,
+            OutputSemantics::Qiskit => qsc::qasm3::OutputSemantics::Qiskit,
+            OutputSemantics::OpenQasm => qsc::qasm3::OutputSemantics::OpenQasm,
+            OutputSemantics::ResourceEstimation => qsc::qasm3::OutputSemantics::ResourceEstimation,
         }
     }
 }
@@ -215,12 +215,12 @@ pub enum ProgramType {
     Fragments,
 }
 
-impl From<ProgramType> for qsc_qasm3::ProgramType {
+impl From<ProgramType> for qsc::qasm3::ProgramType {
     fn from(output_semantics: ProgramType) -> Self {
         match output_semantics {
-            ProgramType::File => qsc_qasm3::ProgramType::File,
-            ProgramType::Operation => qsc_qasm3::ProgramType::Operation,
-            ProgramType::Fragments => qsc_qasm3::ProgramType::Fragments,
+            ProgramType::File => qsc::qasm3::ProgramType::File,
+            ProgramType::Operation => qsc::qasm3::ProgramType::Operation,
+            ProgramType::Fragments => qsc::qasm3::ProgramType::Fragments,
         }
     }
 }