Exemplo n.º 1
0
def replace_user_defined_constants(vyper_module: vy_ast.Module) -> int:
    """
    Find user-defined constant assignments, and replace references
    to the constants with their literal values.

    Arguments
    ---------
    vyper_module : Module
        Top-level Vyper AST node.

    Returns
    -------
    int
        Number of nodes that were replaced.
    """
    changed_nodes = 0

    for node in vyper_module.get_children(vy_ast.AnnAssign):
        if not isinstance(node.target, vy_ast.Name):
            # left-hand-side of assignment is not a variable
            continue
        if node.get("annotation.func.id") != "constant":
            # annotation is not wrapped in `constant(...)`
            continue

        changed_nodes += replace_constant(vyper_module, node.target.id,
                                          node.value, False)

    return changed_nodes
Exemplo n.º 2
0
def replace_user_defined_constants(vyper_module: vy_ast.Module) -> int:
    """
    Find user-defined constant assignments, and replace references
    to the constants with their literal values.

    Arguments
    ---------
    vyper_module : Module
        Top-level Vyper AST node.

    Returns
    -------
    int
        Number of nodes that were replaced.
    """
    changed_nodes = 0

    for node in vyper_module.get_children(vy_ast.AnnAssign):
        if not isinstance(node.target, vy_ast.Name):
            # left-hand-side of assignment is not a variable
            continue
        if node.get("annotation.func.id") != "constant":
            # annotation is not wrapped in `constant(...)`
            continue

        # Extract type definition from propagated annotation
        constant_annotation = node.get("annotation.args")[0]
        try:
            type_ = (
                get_type_from_annotation(constant_annotation, DataLocation.UNSET)
                if constant_annotation
                else None
            )
        except UnknownType:
            # handle user-defined types e.g. structs - it's OK to not
            # propagate the type annotation here because user-defined
            # types can be unambiguously inferred at typechecking time
            type_ = None

        changed_nodes += replace_constant(
            vyper_module, node.target.id, node.value, False, type_=type_
        )

    return changed_nodes
Exemplo n.º 3
0
def replace_user_defined_constants(vyper_ast_node: vy_ast.Module) -> None:
    """
    Find user-defined constant assignments, and replace references
    to the constants with their literal values.

    Arguments
    ---------
    vyper_ast_node : Module
        Top-level Vyper AST node.
    """
    for node in vyper_ast_node.get_children(vy_ast.AnnAssign):
        if not isinstance(node.target, vy_ast.Name):
            # left-hand-side of assignment is not a variable
            continue
        if node.get('annotation.func.id') != "constant":
            # annotation is not wrapped in `constant(...)`
            continue

        replace_constant(vyper_ast_node, node.target.id, node.value)
Exemplo n.º 4
0
def replace_user_defined_constants(vyper_module: vy_ast.Module) -> int:
    """
    Find user-defined constant assignments, and replace references
    to the constants with their literal values.

    Arguments
    ---------
    vyper_module : Module
        Top-level Vyper AST node.

    Returns
    -------
    int
        Number of nodes that were replaced.
    """
    changed_nodes = 0

    for node in vyper_module.get_children(vy_ast.AnnAssign):
        if not isinstance(node.target, vy_ast.Name):
            # left-hand-side of assignment is not a variable
            continue
        if node.get("annotation.func.id") != "constant":
            # annotation is not wrapped in `constant(...)`
            continue

        # Extract type definition from propagated annotation
        constant_annotation = node.get("annotation.args")[0]
        type_ = (get_type_from_annotation(constant_annotation,
                                          DataLocation.UNSET)
                 if constant_annotation else None)

        changed_nodes += replace_constant(vyper_module,
                                          node.target.id,
                                          node.value,
                                          False,
                                          type_=type_)

    return changed_nodes