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# SPDX-License-Identifier: Apache-2.0
# Copyright 2019 The Meson development team
# This class contains the basic functionality needed to run any interpreter
# or an interpreter-based tool
from __future__ import annotations
from .visitor import AstVisitor, FullAstVisitor
import typing as T
if T.TYPE_CHECKING:
from .. import mparser
class AstIndentationGenerator(AstVisitor):
def __init__(self) -> None:
self.level = 0
def visit_default_func(self, node: mparser.BaseNode) -> None:
# Store the current level in the node
node.level = self.level
def visit_ArrayNode(self, node: mparser.ArrayNode) -> None:
self.visit_default_func(node)
self.level += 1
node.args.accept(self)
self.level -= 1
def visit_DictNode(self, node: mparser.DictNode) -> None:
self.visit_default_func(node)
self.level += 1
node.args.accept(self)
self.level -= 1
def visit_MethodNode(self, node: mparser.MethodNode) -> None:
self.visit_default_func(node)
node.source_object.accept(self)
self.level += 1
node.args.accept(self)
self.level -= 1
def visit_FunctionNode(self, node: mparser.FunctionNode) -> None:
self.visit_default_func(node)
self.level += 1
node.args.accept(self)
self.level -= 1
def visit_ForeachClauseNode(self, node: mparser.ForeachClauseNode) -> None:
self.visit_default_func(node)
self.level += 1
node.items.accept(self)
node.block.accept(self)
self.level -= 1
def visit_IfClauseNode(self, node: mparser.IfClauseNode) -> None:
self.visit_default_func(node)
for i in node.ifs:
i.accept(self)
if node.elseblock:
self.level += 1
node.elseblock.accept(self)
self.level -= 1
def visit_IfNode(self, node: mparser.IfNode) -> None:
self.visit_default_func(node)
self.level += 1
node.condition.accept(self)
node.block.accept(self)
self.level -= 1
class AstIDGenerator(AstVisitor):
def __init__(self) -> None:
self.counter: T.Dict[str, int] = {}
def visit_default_func(self, node: mparser.BaseNode) -> None:
name = type(node).__name__
if name not in self.counter:
self.counter[name] = 0
node.ast_id = name + '#' + str(self.counter[name])
self.counter[name] += 1
class AstConditionLevel(FullAstVisitor):
def __init__(self) -> None:
self.condition_level = 0
def enter_node(self, node: mparser.BaseNode) -> None:
node.condition_level = self.condition_level
def visit_ForeachClauseNode(self, node: mparser.ForeachClauseNode) -> None:
self.enter_node(node)
node.foreach_.accept(self)
for varname in node.varnames:
varname.accept(self)
for comma in node.commas:
comma.accept(self)
node.colon.accept(self)
node.items.accept(self)
self.condition_level += 1
node.block.accept(self)
self.condition_level -= 1
node.endforeach.accept(self)
self.exit_node(node)
def visit_IfNode(self, node: mparser.IfNode) -> None:
self.enter_node(node)
node.if_.accept(self)
node.condition.accept(self)
self.condition_level += 1
node.block.accept(self)
self.condition_level -= 1
self.exit_node(node)
def visit_ElseNode(self, node: mparser.ElseNode) -> None:
self.enter_node(node)
node.else_.accept(self)
self.condition_level += 1
node.block.accept(self)
self.condition_level -= 1
self.exit_node(node)
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