# Source code for ffcx.codegeneration.codegeneration

    # Copyright (C) 2009-2017 Anders Logg, Martin Sandve Alnæs, Marie E. Rognes,
    # Kristian B. Oelgaard, and others
    #
    # This file is part of FFCx.(https://www.fenicsproject.org)
    #
    # SPDX-License-Identifier:    LGPL-3.0-or-later
    """Compiler stage 4: Code generation.

    This module implements the generation of C code for the body of each
    UFC function from an intermediate representation (IR).
    """

    from __future__ import annotations

    import logging
    import typing

    import numpy.typing as npt

    from ffcx.codegeneration.C.expressions import generator as expression_generator
    from ffcx.codegeneration.C.file import generator as file_generator
    from ffcx.codegeneration.C.form import generator as form_generator
    from ffcx.codegeneration.C.integrals import generator as integral_generator
    from ffcx.ir.representation import DataIR

    logger = logging.getLogger("ffcx")

    class CodeBlocks(typing.NamedTuple):
        """Storage of code blocks of the form (declaration, implementation).

        Blocks for integrals, forms and expressions, and start and end of file output
        """

        file_pre: list[tuple[str, str]]
        integrals: list[tuple[str, str]]
        forms: list[tuple[str, str]]
        expressions: list[tuple[str, str]]
        file_post: list[tuple[str, str]]

    def generate_code(ir: DataIR, options: dict[str, int | float | npt.DTypeLike]) -> CodeBlocks:
        """Generate code blocks from intermediate representation."""
        logger.info(79 * "*")
        logger.info("Compiler stage 3: Generating code")
        logger.info(79 * "*")

        code_integrals = [
            integral_generator(integral_ir, domain, options)
            for integral_ir in ir.integrals
            for domain in set(i[0] for i in integral_ir.expression.integrand.keys())
        ]
        code_forms = [form_generator(form_ir, options) for form_ir in ir.forms]
        code_expressions = [
            expression_generator(expression_ir, options) for expression_ir in ir.expressions
        ]
        code_file_pre, code_file_post = file_generator(options)
        return CodeBlocks(
            file_pre=[code_file_pre],
            integrals=code_integrals,
            forms=code_forms,
            expressions=code_expressions,
            file_post=[code_file_post],
        )