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