mirror of
https://github.com/Nexoniarz/Finch.git
synced 2026-11-03 00:44:27 +00:00
139 lines
6.4 KiB
Python
Executable file
139 lines
6.4 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
"""Talks to `finch lsp` like an editor would and checks the answers."""
|
|
import json, os, subprocess, sys, tempfile
|
|
|
|
FINCH = os.environ.get("FINCH", os.path.join(os.path.dirname(__file__), "..", "build", "finch"))
|
|
failures = 0
|
|
|
|
def check(name, cond, detail=""):
|
|
global failures
|
|
if cond:
|
|
print("ok ", name)
|
|
else:
|
|
failures += 1
|
|
print("FAIL", name, detail)
|
|
|
|
class Client:
|
|
def __init__(self):
|
|
self.p = subprocess.Popen([FINCH, "lsp"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
|
|
self.next_id = 0
|
|
self.notes = []
|
|
|
|
def send(self, msg):
|
|
body = json.dumps(msg).encode()
|
|
self.p.stdin.write(b"Content-Length: %d\r\n\r\n" % len(body) + body)
|
|
self.p.stdin.flush()
|
|
|
|
def read(self):
|
|
length = 0
|
|
while True:
|
|
line = self.p.stdout.readline().decode().strip()
|
|
if not line:
|
|
break
|
|
if line.startswith("Content-Length:"):
|
|
length = int(line.split(":")[1])
|
|
return json.loads(self.p.stdout.read(length))
|
|
|
|
def request(self, method, params):
|
|
self.next_id += 1
|
|
self.send({"jsonrpc": "2.0", "id": self.next_id, "method": method, "params": params})
|
|
while True:
|
|
m = self.read()
|
|
if m.get("id") == self.next_id:
|
|
return m.get("result")
|
|
self.notes.append(m)
|
|
|
|
def notify(self, method, params):
|
|
self.send({"jsonrpc": "2.0", "method": method, "params": params})
|
|
|
|
def diagnostics(self, uri):
|
|
# the server publishes right after didOpen/didChange; a request flushes the order
|
|
self.request("textDocument/hover", {"textDocument": {"uri": uri}, "position": {"line": 0, "character": 0}})
|
|
found = [n for n in self.notes if n.get("method") == "textDocument/publishDiagnostics" and n["params"]["uri"] == uri]
|
|
self.notes = []
|
|
return found[-1]["params"]["diagnostics"] if found else None
|
|
|
|
src = """struct Point {
|
|
int x
|
|
int y
|
|
}
|
|
|
|
fn add(int a, int b) -> int {
|
|
return a + b
|
|
}
|
|
|
|
fn main() {
|
|
p := Point(1, 2)
|
|
total := add(p.x, p.y)
|
|
names := ["a", "b"]
|
|
print(total, names.len)
|
|
}
|
|
"""
|
|
lines = src.split("\n")
|
|
def pos(line_no, text): # 0-based position of `text` in a 1-based line
|
|
return {"line": line_no - 1, "character": lines[line_no - 1].index(text)}
|
|
|
|
d = tempfile.mkdtemp()
|
|
path = os.path.join(d, "demo.fch")
|
|
open(path, "w").write(src)
|
|
uri = "file://" + path
|
|
td = {"uri": uri}
|
|
|
|
c = Client()
|
|
init = c.request("initialize", {"processId": None, "rootUri": None, "capabilities": {}})
|
|
check("initialize", init["capabilities"]["hoverProvider"] is True)
|
|
c.notify("initialized", {})
|
|
c.notify("textDocument/didOpen", {"textDocument": {"uri": uri, "languageId": "finch", "version": 1, "text": src}})
|
|
check("no errors in a good file", c.diagnostics(uri) == [])
|
|
|
|
h = c.request("textDocument/hover", {"textDocument": td, "position": pos(12, "total")})
|
|
check("hover: variable type", h and "int total" in h["contents"]["value"], h)
|
|
h = c.request("textDocument/hover", {"textDocument": td, "position": pos(12, "add")})
|
|
check("hover: function signature", h and "fn add(int a, int b) -> int" in h["contents"]["value"], h)
|
|
h = c.request("textDocument/hover", {"textDocument": td, "position": pos(14, "print")})
|
|
check("hover: built-in docs", h and "Prints the values" in h["contents"]["value"], h)
|
|
|
|
defn = c.request("textDocument/definition", {"textDocument": td, "position": pos(12, "add")})
|
|
check("definition: function", defn and defn["range"]["start"]["line"] == 5, defn)
|
|
defn = c.request("textDocument/definition", {"textDocument": td, "position": pos(12, "p.x")})
|
|
check("definition: variable", defn and defn["range"]["start"]["line"] == 10, defn)
|
|
|
|
# completion after "p." on a new line inside main
|
|
edited = src.replace(" print(total, names.len)\n", " print(total, names.len)\n p.\n")
|
|
c.notify("textDocument/didChange", {"textDocument": {"uri": uri, "version": 2}, "contentChanges": [{"text": edited}]})
|
|
comp = c.request("textDocument/completion", {"textDocument": td, "position": {"line": 14, "character": 6}})
|
|
labels = [i["label"] for i in comp["items"]]
|
|
check("completion: struct fields after p.", "x" in labels and "y" in labels, labels)
|
|
comp = c.request("textDocument/completion", {"textDocument": td, "position": {"line": 14, "character": 4}})
|
|
labels = [i["label"] for i in comp["items"]]
|
|
check("completion: variables, functions, keywords", all(x in labels for x in ["total", "names", "add", "Point", "while", "print"]), labels[:30])
|
|
|
|
edited2 = src.replace(" print(total, names.len)\n", " print(total, names.len)\n names.\n")
|
|
c.notify("textDocument/didChange", {"textDocument": {"uri": uri, "version": 3}, "contentChanges": [{"text": edited2}]})
|
|
comp = c.request("textDocument/completion", {"textDocument": td, "position": {"line": 14, "character": 10}})
|
|
labels = [i["label"] for i in comp["items"]]
|
|
check("completion: array methods", "push" in labels and "sort" in labels, labels)
|
|
|
|
sig_src = src.replace(" print(total, names.len)\n", " print(total, names.len)\n add(1, \n")
|
|
c.notify("textDocument/didChange", {"textDocument": {"uri": uri, "version": 4}, "contentChanges": [{"text": sig_src}]})
|
|
sig = c.request("textDocument/signatureHelp", {"textDocument": td, "position": {"line": 14, "character": 11}})
|
|
check("signature help", sig and sig["signatures"][0]["label"].startswith("fn add") and sig["activeParameter"] == 1, sig)
|
|
|
|
c.notify("textDocument/didChange", {"textDocument": {"uri": uri, "version": 5}, "contentChanges": [{"text": src}]})
|
|
syms = c.request("textDocument/documentSymbol", {"textDocument": td})
|
|
names = sorted(s["name"] for s in syms)
|
|
check("document symbols", names == ["Point", "add", "main"], names)
|
|
|
|
bad = src.replace("total := add(p.x, p.y)", 'total := add(p.x, "y")')
|
|
c.notify("textDocument/didChange", {"textDocument": {"uri": uri, "version": 6}, "contentChanges": [{"text": bad}]})
|
|
diags = c.diagnostics(uri)
|
|
check("error shown while typing", diags and "must be int, but this is str" in diags[0]["message"] and diags[0]["range"]["start"]["line"] == 11, diags)
|
|
c.notify("textDocument/didChange", {"textDocument": {"uri": uri, "version": 7}, "contentChanges": [{"text": src}]})
|
|
check("error cleared after the fix", c.diagnostics(uri) == [])
|
|
|
|
c.request("shutdown", None)
|
|
c.notify("exit", None)
|
|
c.p.wait(timeout=5)
|
|
check("clean exit", c.p.returncode == 0, c.p.returncode)
|
|
print("lsp:", "all ok" if failures == 0 else f"{failures} failed")
|
|
sys.exit(1 if failures else 0)
|