mirror of
https://github.com/SpaceVim/SpaceVim.git
synced 2025-02-04 20:40:05 +08:00
365 lines
12 KiB
Python
365 lines
12 KiB
Python
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import os
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import re
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import platform
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import subprocess
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from collections import OrderedDict
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from deoplete.base.source import Base
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from deoplete.util import charpos2bytepos, expand, getlines, load_external_module
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load_external_module(__file__, "sources/deoplete_go")
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from cgo import cgo
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from stdlib import stdlib
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try:
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load_external_module(__file__, "")
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from ujson import loads
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except ImportError:
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from json import loads
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# from https://github.com/golang/go/blob/go1.13beta1/src/go/build/syslist.go
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known_goos = (
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"aix",
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"android",
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"appengine",
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"darwin",
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"dragonfly",
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"freebsd",
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"hurd",
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"illumos",
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"js",
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"linux",
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"nacl",
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"netbsd",
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"openbsd",
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"plan9",
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"solaris",
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"windows",
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"zos",
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)
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class Source(Base):
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def __init__(self, vim):
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super(Source, self).__init__(vim)
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self.name = "go"
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self.mark = "[Go]"
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self.filetypes = ["go"]
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self.input_pattern = r"(?:\b[^\W\d]\w*|[\]\)])\.(?:[^\W\d]\w*)?"
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self.rank = 500
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def on_init(self, context):
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vars = context["vars"]
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self.gocode_binary = ""
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if "deoplete#sources#go#gocode_binary" in vars:
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self.gocode_binary = expand(vars["deoplete#sources#go#gocode_binary"])
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self.package_dot = False
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if "deoplete#sources#go#package_dot" in vars:
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self.package_dot = vars["deoplete#sources#go#package_dot"]
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self.sort_class = []
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if "deoplete#sources#go#sort_class" in vars:
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self.sort_class = vars["deoplete#sources#go#sort_class"]
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self.pointer = False
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if "deoplete#sources#go#pointer" in vars:
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self.pointer = vars["deoplete#sources#go#pointer"]
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self.auto_goos = False
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if "deoplete#sources#go#auto_goos" in vars:
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self.auto_goos = vars["deoplete#sources#go#auto_goos"]
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self.goos = ""
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if "deoplete#sources#go#goos" in vars:
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self.goos = vars["deoplete#sources#go#goos"]
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self.goarch = ""
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if "deoplete#sources#go#goarch" in vars:
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self.goarch = vars["deoplete#sources#go#goarch"]
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self.sock = ""
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if "deoplete#sources#go#sock" in vars:
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self.sock = vars["deoplete#sources#go#sock"]
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self.cgo = False
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if "deoplete#sources#go#cgo" in vars:
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self.cgo = vars["deoplete#sources#go#cgo"]
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self.cgo_only = False
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if "deoplete#sources#go#cgo_only" in vars:
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self.cgo_only = vars["deoplete#sources#go#cgo_only"]
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self.source_importer = False
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if "deoplete#sources#go#source_importer" in vars:
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self.source_importer = vars["deoplete#sources#go#source_importer"]
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self.builtin_objects = False
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if "deoplete#sources#go#builtin_objects" in vars:
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self.builtin_objects = vars["deoplete#sources#go#builtin_objects"]
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self.unimported_packages = False
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if "deoplete#sources#go#unimported_packages" in vars:
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self.unimported_packages = vars["deoplete#sources#go#unimported_packages"]
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self.fallback_to_source = False
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if "deoplete#sources#go#fallback_to_source" in vars:
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self.fallback_to_source = vars["deoplete#sources#go#fallback_to_source"]
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self.loaded_gocode_binary = False
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self.complete_pos = re.compile(r'\w*$|(?<=")[./\-\w]*$')
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if self.pointer:
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self.complete_pos = re.compile(self.complete_pos.pattern + r"|\*$")
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self.input_pattern += r"|\*"
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if self.cgo:
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load_external_module(__file__, "clang")
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import clang.cindex as clang
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self.libclang_path = vars.get("deoplete#sources#go#cgo#libclang_path", "")
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if self.libclang_path == "":
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return
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self.cgo_options = {
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"std": vars.get("deoplete#sources#go#cgo#std", "c11"),
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"sort_algo": vars.get("deoplete#sources#cgo#sort_algo", None),
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}
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if (
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not clang.Config.loaded
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and clang.Config.library_path != self.libclang_path
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):
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clang.Config.set_library_file(self.libclang_path)
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clang.Config.set_compatibility_check(False)
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# Set 'C.' complete pattern
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self.cgo_complete_pattern = re.compile(r"[^\W\d]*C\.")
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# Create clang.cindex.Index database
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self.index = clang.Index.create(0)
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# initialize in-memory cache
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self.cgo_cache, self.cgo_inline_source = dict(), None
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def get_complete_position(self, context):
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m = self.complete_pos.search(context["input"])
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return m.start() if m else -1
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def gather_candidates(self, context):
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# If enabled self.cgo, and matched self.cgo_complete_pattern pattern
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if self.cgo and self.cgo_complete_pattern.search(context["input"]):
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return self.cgo_completion(getlines(self.vim))
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if self.cgo_only:
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return []
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bufname = self.vim.current.buffer.name
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if not os.path.isfile(bufname):
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bufname = self.vim.call("tempname")
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result = self.get_complete_result(context, getlines(self.vim), bufname)
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try:
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if result[1][0]["class"] == "PANIC":
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self.print_error("gocode panicked")
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return []
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if self.sort_class:
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class_dict = OrderedDict((x, []) for x in self.sort_class)
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out = []
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sep = " "
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for complete in result[1]:
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word = complete["name"]
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info = complete["type"]
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_class = complete["class"]
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abbr = str(word + sep + info).replace(" func", "", 1)
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kind = _class
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if _class == "package" and self.package_dot:
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word += "."
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if (
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self.pointer
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and str(context["input"][context["complete_position"] :]) == "*"
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):
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word = "*" + word
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candidates = dict(word=word, abbr=abbr, kind=kind, info=info, dup=1)
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if not self.sort_class or _class == "import":
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out.append(candidates)
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elif _class in class_dict.keys():
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class_dict[_class].append(candidates)
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if self.sort_class:
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for v in class_dict.values():
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out += v
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return out
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except Exception:
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return []
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def cgo_completion(self, buffer):
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# No include header
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if cgo.get_inline_source(buffer)[0] == 0:
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return
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count, inline_source = cgo.get_inline_source(buffer)
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# exists 'self.cgo_inline_source', same inline sources and
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# already cached cgo complete candidates
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if (
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self.cgo_inline_source is not None
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and self.cgo_inline_source == inline_source
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and self.cgo_cache[self.cgo_inline_source]
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):
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# Use in-memory(self.cgo_headers) cacahe
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return self.cgo_cache[self.cgo_inline_source]
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else:
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self.cgo_inline_source = inline_source
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# return candidates use libclang-python3
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return cgo.complete(
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self.index,
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self.cgo_cache,
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self.cgo_options,
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count,
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self.cgo_inline_source,
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)
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def get_complete_result(self, context, buffer, bufname):
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offset = self.get_cursor_offset(context)
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env = os.environ.copy()
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env["GOPATH"] = self.vim.eval("$GOPATH")
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if self.auto_goos:
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name = os.path.basename(os.path.splitext(bufname)[0])
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if "_" in name:
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for part in name.rsplit("_", 2):
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if part in known_goos:
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env["GOOS"] = part
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break
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if "GOOS" not in env:
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for line in buffer:
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if line.startswith("package "):
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break
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elif not line.startswith("// +build"):
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continue
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directives = [x.split(",", 1)[0] for x in line[9:].strip().split()]
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if platform.system().lower() not in directives:
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for plat in directives:
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if plat in known_goos:
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env["GOOS"] = plat
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break
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elif self.goos != "":
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env["GOOS"] = self.goos
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if "GOOS" in env and env["GOOS"] != platform.system().lower():
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env["CGO_ENABLED"] = "0"
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if self.goarch != "":
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env["GOARCH"] = self.goarch
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gocode = self.find_gocode_binary()
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if not gocode:
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return []
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args = [gocode, "-f=json"]
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if self.source_importer:
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args.append("-source")
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if self.builtin_objects:
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args.append("-builtin")
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if self.unimported_packages:
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args.append("-unimported-packages")
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if self.fallback_to_source:
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args.append("-fallback-to-source")
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# basically, '-sock' option for mdempsky/gocode.
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# probably meaningless in nsf/gocode that already run the rpc server
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if self.sock != "" and self.sock in ["unix", "tcp", "none"]:
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args.append("-sock={}".format(self.sock))
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args += ["autocomplete", bufname, str(offset)]
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process = subprocess.Popen(
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args,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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start_new_session=True,
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env=env,
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)
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stdout_data, stderr_data = process.communicate("\n".join(buffer).encode())
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result = []
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try:
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result = loads(stdout_data.decode())
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except Exception as e:
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self.print_error("gocode decode error")
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self.print_error(stdout_data.decode())
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self.print_error(stderr_data.decode())
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return result
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def get_cursor_offset(self, context):
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line = self.vim.current.window.cursor[0]
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column = context["complete_position"]
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count = self.vim.call("line2byte", line)
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if self.vim.current.buffer.options["fileformat"] == "dos":
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# Note: line2byte() counts "\r\n" in DOS format. It must be "\n"
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# in gocode.
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count -= line - 1
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return count + charpos2bytepos("utf-8", context["input"][:column], column) - 1
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def parse_import_package(self, buffer):
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start = 0
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packages = []
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for line, b in enumerate(buffer):
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if re.match(r"^\s*import \w*|^\s*import \(", b):
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start = line
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continue
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elif re.match(r"\)", b):
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break
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elif line > start:
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package_name = re.sub(r'\t|"', "", b)
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if str(package_name).find(r"/", 0) > 0:
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full_package_name = str(package_name).split("/", -1)
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package_name = full_package_name[len(full_package_name) - 1]
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library = (
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"/".join(full_package_name[: len(full_package_name) - 1]),
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)
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packages.append(dict(library=library, package=package_name))
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else:
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packages.append(dict(library="none", package=package_name))
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return packages
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def find_gocode_binary(self):
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if self.gocode_binary != "" and self.loaded_gocode_binary:
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return self.gocode_binary
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self.loaded_gocode_binary = os.path.isfile(self.gocode_binary)
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if self.loaded_gocode_binary:
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return self.gocode_binary
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elif platform.system().lower() == "windows":
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return self.find_binary_path("gocode.exe")
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else:
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return self.find_binary_path("gocode")
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def find_binary_path(self, path):
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def is_exec(bin_path):
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return os.path.isfile(bin_path) and os.access(bin_path, os.X_OK)
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dirpath, binary = os.path.split(path)
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if dirpath:
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if is_exec(path):
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return path
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else:
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for p in os.environ["PATH"].split(os.pathsep):
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p = p.strip('"')
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binary = os.path.join(p, path)
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if is_exec(binary):
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return binary
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return self.print_error(path + " binary not found")
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