KoD 1.7.3

- fix vari\n\n

lib/esprima/comment_handler.py

@@ -0,0 +1,176 @@
+# -*- coding: utf-8 -*-
+# Copyright JS Foundation and other contributors, https://js.foundation/
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#   * Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+from __future__ import absolute_import, unicode_literals
+
+from .objects import Object
+from .nodes import Node
+from .syntax import Syntax
+
+
+class Comment(Node):
+    def __init__(self, type, value, range=None, loc=None):
+        self.type = type
+        self.value = value
+        self.range = range
+        self.loc = loc
+
+
+class Entry(Object):
+    def __init__(self, comment, start):
+        self.comment = comment
+        self.start = start
+
+
+class NodeInfo(Object):
+    def __init__(self, node, start):
+        self.node = node
+        self.start = start
+
+
+class CommentHandler(object):
+    def __init__(self):
+        self.attach = False
+        self.comments = []
+        self.stack = []
+        self.leading = []
+        self.trailing = []
+
+    def insertInnerComments(self, node, metadata):
+        #  innnerComments for properties empty block
+        #  `function a(:/** comments **\/}`
+        if node.type is Syntax.BlockStatement and not node.body:
+            innerComments = []
+            for i, entry in enumerate(self.leading):
+                if metadata.end.offset >= entry.start:
+                    innerComments.append(entry.comment)
+                    self.leading[i] = None
+                    self.trailing[i] = None
+            if innerComments:
+                node.innerComments = innerComments
+                self.leading = [v for v in self.leading if v is not None]
+                self.trailing = [v for v in self.trailing if v is not None]
+
+    def findTrailingComments(self, metadata):
+        trailingComments = []
+
+        if self.trailing:
+            for i, entry in enumerate(self.trailing):
+                if entry.start >= metadata.end.offset:
+                    trailingComments.append(entry.comment)
+            if trailingComments:
+                self.trailing = []
+            return trailingComments
+
+        last = self.stack and self.stack[-1]
+        if last and last.node.trailingComments:
+            firstComment = last.node.trailingComments[0]
+            if firstComment and firstComment.range[0] >= metadata.end.offset:
+                trailingComments = last.node.trailingComments
+                del last.node.trailingComments
+        return trailingComments
+
+    def findLeadingComments(self, metadata):
+        leadingComments = []
+
+        target = None
+        while self.stack:
+            entry = self.stack and self.stack[-1]
+            if entry and entry.start >= metadata.start.offset:
+                target = entry.node
+                self.stack.pop()
+            else:
+                break
+
+        if target:
+            if target.leadingComments:
+                for i, comment in enumerate(target.leadingComments):
+                    if comment.range[1] <= metadata.start.offset:
+                        leadingComments.append(comment)
+                        target.leadingComments[i] = None
+            if leadingComments:
+                target.leadingComments = [v for v in target.leadingComments if v is not None]
+                if not target.leadingComments:
+                    del target.leadingComments
+            return leadingComments
+
+        for i, entry in enumerate(self.leading):
+            if entry.start <= metadata.start.offset:
+                leadingComments.append(entry.comment)
+                self.leading[i] = None
+        if leadingComments:
+            self.leading = [v for v in self.leading if v is not None]
+
+        return leadingComments
+
+    def visitNode(self, node, metadata):
+        if node.type is Syntax.Program and node.body:
+            return
+
+        self.insertInnerComments(node, metadata)
+        trailingComments = self.findTrailingComments(metadata)
+        leadingComments = self.findLeadingComments(metadata)
+        if leadingComments:
+            node.leadingComments = leadingComments
+        if trailingComments:
+            node.trailingComments = trailingComments
+
+        self.stack.append(NodeInfo(
+            node=node,
+            start=metadata.start.offset
+        ))
+
+    def visitComment(self, node, metadata):
+        type = 'Line' if node.type[0] == 'L' else 'Block'
+        comment = Comment(
+            type=type,
+            value=node.value
+        )
+        if node.range:
+            comment.range = node.range
+        if node.loc:
+            comment.loc = node.loc
+        self.comments.append(comment)
+
+        if self.attach:
+            entry = Entry(
+                comment=Comment(
+                    type=type,
+                    value=node.value,
+                    range=[metadata.start.offset, metadata.end.offset]
+                ),
+                start=metadata.start.offset
+            )
+            if node.loc:
+                entry.comment.loc = node.loc
+            node.type = type
+            self.leading.append(entry)
+            self.trailing.append(entry)
+
+    def visit(self, node, metadata):
+        if node.type == 'LineComment':
+            self.visitComment(node, metadata)
+        elif node.type == 'BlockComment':
+            self.visitComment(node, metadata)
+        elif self.attach:
+            self.visitNode(node, metadata)