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Merge pull request #364 from julia-vscode/enable-vendoring
Use the standard VS Code approach to enable vendoring
2 parents b5cb953 + cef6692 commit 2541320

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‎src/CSTParser.jl

Lines changed: 2 additions & 299 deletions
Original file line numberDiff line numberDiff line change
@@ -1,307 +1,10 @@
11
module CSTParser
2-
global debug = true
32

43
using Tokenize
5-
import Base: length, first, last, getindex, setindex!
64
import Tokenize.Tokens
75
import Tokenize.Tokens: RawToken, AbstractToken, iskeyword, isliteral, isoperator, untokenize
8-
import Tokenize.Lexers: Lexer, peekchar, iswhitespace
6+
import Tokenize.Lexers: Lexer, peekchar, iswhitespace, readchar, emit, emit_error, accept_batch, eof
97

10-
export ParseState, parse_expression
8+
include("packagedef.jl")
119

12-
include("lexer.jl")
13-
include("spec.jl")
14-
include("utils.jl")
15-
include("recovery.jl")
16-
include("components/internals.jl")
17-
include("components/keywords.jl")
18-
include("components/lists.jl")
19-
include("components/operators.jl")
20-
include("components/strings.jl")
21-
include("conversion.jl")
22-
include("display.jl")
23-
include("interface.jl")
24-
include("iterate.jl")
25-
26-
"""
27-
parse_expression(ps)
28-
29-
Parses an expression until `closer(ps) == true`. Expects to enter the
30-
`ParseState` the token before the the beginning of the expression and ends
31-
on the last token.
32-
33-
Acceptable starting tokens are:
34-
+ A keyword
35-
+ An opening parentheses or brace.
36-
+ An operator.
37-
+ An instance (e.g. identifier, number, etc.)
38-
+ An `@`.
39-
40-
"""
41-
function parse_expression(ps::ParseState, esc_on_error = false)
42-
if kindof(ps.nt) === Tokens.ENDMARKER
43-
ret = mErrorToken(ps, UnexpectedToken)
44-
elseif (esc_on_error && ps.nt.kind == Tokens.ERROR)
45-
ret = EXPR(:errortoken, 0, 0)
46-
elseif kindof(ps.nt) ∈ term_c && !(kindof(ps.nt) === Tokens.END && ps.closer.square)
47-
if ps.closer.square && kindof(ps.nt) === Tokens.RSQUARE
48-
ret = mErrorToken(ps, UnexpectedToken)
49-
else
50-
ret = mErrorToken(ps, EXPR(next(ps)), UnexpectedToken)
51-
end
52-
else
53-
next(ps)
54-
if iskeyword(kindof(ps.t)) && kindof(ps.t) != Tokens.DO
55-
ret = parse_kw(ps)
56-
elseif kindof(ps.t) === Tokens.LPAREN
57-
ret = parse_paren(ps)
58-
elseif kindof(ps.t) === Tokens.LSQUARE
59-
ret = @closer ps :for_generator @default ps parse_array(ps)
60-
elseif kindof(ps.t) === Tokens.LBRACE
61-
ret = @default ps @closebrace ps parse_braces(ps)
62-
elseif isinstance(ps.t) || isoperator(ps.t)
63-
if both_symbol_and_op(ps.t)
64-
ret = EXPR(:IDENTIFIER, ps)
65-
else
66-
@static if VERSION < v"1.6"
67-
# https://github.com/JuliaLang/julia/pull/37583
68-
ret = INSTANCE(ps)
69-
else
70-
if ps.t.dotop && closer(ps) && !isassignmentop(ps.t)
71-
# Split dotted operator into dot-call
72-
v = val(ps.t, ps)[2:end]
73-
dot = EXPR(:OPERATOR, 1, 1, ".")
74-
op = EXPR(:OPERATOR, ps.nt.startbyte - ps.t.startbyte - 1, ps.t.endbyte - ps.t.startbyte, v)
75-
ret = EXPR(dot, EXPR[op], nothing)
76-
else
77-
ret = INSTANCE(ps)
78-
end
79-
end
80-
end
81-
if is_colon(ret) && !(iscomma(ps.nt) || kindof(ps.ws) == SemiColonWS)
82-
ret = parse_unary(ps, ret)
83-
elseif isoperator(ret) && assign_prec(valof(ret)) && !isunaryop(ret)
84-
ret = mErrorToken(ps, ret, UnexpectedAssignmentOp)
85-
end
86-
elseif kindof(ps.t) === Tokens.AT_SIGN
87-
ret = parse_macrocall(ps)
88-
else
89-
ret = mErrorToken(ps, INSTANCE(ps), UnexpectedToken)
90-
end
91-
ret = parse_compound_recur(ps, ret)
92-
end
93-
return ret
94-
end
95-
96-
function parse_compound_recur(ps, ret)
97-
!closer(ps) ? parse_compound_recur(ps, parse_compound(ps, ret)) : ret
98-
end
99-
100-
"""
101-
parse_compound(ps::ParseState, ret::EXPR)
102-
103-
Attempts to parse a compound expression given the preceding expression `ret`.
104-
"""
105-
function parse_compound(ps::ParseState, ret::EXPR)
106-
if kindof(ps.nt) === Tokens.FOR
107-
ret = parse_generator(ps, ret)
108-
elseif kindof(ps.nt) === Tokens.DO
109-
ret = @default ps @closer ps :block parse_do(ps, ret)
110-
elseif isajuxtaposition(ps, ret)
111-
if disallowednumberjuxt(ret)
112-
ret = mErrorToken(ps, ret, CannotJuxtapose)
113-
end
114-
ret = parse_operator(ps, ret, EXPR(:OPERATOR, 0, 0, "*"))
115-
elseif issuffixableliteral(ps, ret)
116-
if isnumberliteral(ps.nt)
117-
arg = mLITERAL(next(ps))
118-
push!(ret, arg)
119-
else
120-
arg = EXPR(:IDENTIFIER, next(ps))
121-
push!(ret, EXPR(:STRING, arg.fullspan, arg.span, val(ps.t, ps)))
122-
end
123-
elseif (isidentifier(ret) || is_getfield(ret)) && isemptyws(ps.ws) && isprefixableliteral(ps.nt)
124-
ret = parse_prefixed_string_cmd(ps, ret)
125-
elseif kindof(ps.nt) === Tokens.LPAREN
126-
no_ws = !isemptyws(ps.ws)
127-
ret = @closer ps :for_generator @closeparen ps parse_call(ps, ret)
128-
if no_ws && !isunarycall(ret)
129-
ret = mErrorToken(ps, ret, UnexpectedWhiteSpace)
130-
end
131-
elseif kindof(ps.nt) === Tokens.LBRACE
132-
if isemptyws(ps.ws)
133-
ret = @default ps @nocloser ps :inwhere @closebrace ps parse_curly(ps, ret)
134-
else
135-
ret = mErrorToken(ps, (@default ps @nocloser ps :inwhere @closebrace ps parse_curly(ps, ret)), UnexpectedWhiteSpace)
136-
end
137-
elseif kindof(ps.nt) === Tokens.LSQUARE && isemptyws(ps.ws) && !isoperator(ret)
138-
ret = @closer ps :for_generator @default ps @nocloser ps :block parse_ref(ps, ret)
139-
elseif iscomma(ps.nt)
140-
ret = parse_tuple(ps, ret)
141-
elseif isunaryop(ret) && kindof(ps.nt) != Tokens.EQ
142-
ret = parse_unary(ps, ret)
143-
elseif isoperator(ps.nt)
144-
op = EXPR(:OPERATOR, next(ps))
145-
ret = parse_operator(ps, ret, op)
146-
elseif is_prime(ret.head)
147-
# prime operator followed by an identifier has an implicit multiplication
148-
nextarg = @precedence ps TimesOp parse_expression(ps)
149-
ret = EXPR(:call, EXPR[EXPR(:OPERATOR, 0, 0, "*"), ret, nextarg], nothing)
150-
# ###############################################################################
151-
# Everything below here is an error
152-
# ###############################################################################
153-
else
154-
ps.errored = true
155-
if kindof(ps.nt) in (Tokens.RPAREN, Tokens.RSQUARE, Tokens.RBRACE)
156-
nextarg = mErrorToken(ps, EXPR(next(ps)), Unknown)
157-
else
158-
nextarg = try
159-
parse_expression(ps)
160-
catch err
161-
if err isa StackOverflowError
162-
throw(error(string(ps, "\nsize: ", ps.l.io.size)))
163-
end
164-
mErrorToken(ps, ret, Unknown)
165-
end
166-
end
167-
ret = EXPR(:errortoken, EXPR[ret, nextarg], nothing)
168-
end
169-
return ret
170-
end
171-
172-
"""
173-
parse_paren(ps, ret)
174-
175-
Parses an expression starting with a `(`.
176-
"""
177-
function parse_paren(ps::ParseState)
178-
args = EXPR[]
179-
trivia = EXPR[EXPR(ps)]
180-
@closeparen ps @default ps @nocloser ps :inwhere parse_comma_sep(ps, args, trivia, false, true, true, insert_params_at = 1)
181-
if length(args) == 1 && length(trivia) == 1 && ((kindof(ps.ws) !== SemiColonWS || headof(args[1]) === :block) && headof(args[1]) !== :parameters)
182-
accept_rparen(ps, trivia)
183-
ret = EXPR(:brackets, args, trivia)
184-
elseif VERSION < v"1.5" && length(args) == 1 && args[1].head === :parameters && isempty(args[1].args)
185-
accept_rparen(ps, trivia)
186-
pop!(args)
187-
push!(args, EXPR(:block, EXPR[], nothing))
188-
ret = EXPR(:brackets, args, trivia)
189-
else
190-
accept_rparen(ps, trivia)
191-
ret = EXPR(:tuple, args, trivia)
192-
end
193-
return ret
194-
end
195-
196-
"""
197-
parse(str, cont = false)
198-
199-
Parses the passed string. If `cont` is true then will continue parsing until the end of the string returning the resulting expressions in a TOPLEVEL block.
200-
"""
201-
function parse(str::String, cont=false)
202-
ps = ParseState(str)
203-
x, _ = parse(ps, cont)
204-
return x
205-
end
206-
207-
"""
208-
parse_doc(ps::ParseState)
209-
210-
Used for top-level parsing - attaches documentation (such as this) to expressions.
211-
"""
212-
function parse_doc(ps::ParseState)
213-
if (kindof(ps.nt) === Tokens.STRING || kindof(ps.nt) === Tokens.TRIPLE_STRING) && !isemptyws(ps.nws)
214-
doc = mLITERAL(next(ps))
215-
if kindof(ps.nt) === Tokens.ENDMARKER || kindof(ps.nt) === Tokens.END || ps.t.endpos[1] + 1 < ps.nt.startpos[1]
216-
ret = doc
217-
elseif isbinaryop(ps.nt) && !closer(ps)
218-
ret = parse_compound_recur(ps, doc)
219-
else
220-
ret = parse_expression(ps)
221-
ret = EXPR(:macrocall, EXPR[EXPR(:globalrefdoc, 0, 0), EXPR(:NOTHING, 0, 0), doc, ret], nothing)
222-
end
223-
else
224-
ret = parse_expression(ps)
225-
end
226-
if _continue_doc_parse(ps, ret)
227-
push!(ret, parse_expression(ps))
228-
end
229-
return ret
230-
end
231-
232-
function parse(ps::ParseState, cont=false)
233-
if ps.l.io.size == 0
234-
return (cont ? EXPR(:file, EXPR[]) : nothing), ps
235-
end
236-
last_line = 0
237-
curr_line = 0
238-
239-
if cont
240-
top = EXPR(:file, EXPR[], nothing)
241-
if kindof(ps.nt) === Tokens.WHITESPACE || kindof(ps.nt) === Tokens.COMMENT
242-
next(ps)
243-
push!(top, EXPR(:NOTHING, ps.nt.startbyte, ps.nt.startbyte, ""))
244-
elseif kindof(ps.nt) === Tokens.SEMICOLON
245-
next(ps)
246-
push!(top, EXPR(:toplevel, EXPR[EXPR(:NOTHING, ps.nt.startbyte, ps.nt.startbyte, "")]))
247-
end
248-
249-
prevpos = position(ps)
250-
while kindof(ps.nt) !== Tokens.ENDMARKER
251-
curr_line = ps.nt.startpos[1]
252-
ret = parse_doc(ps)
253-
# join semicolon sep items
254-
if curr_line == last_line && headof(last(top.args)) === :toplevel
255-
push!(last(top.args), ret)
256-
top.fullspan += ret.fullspan
257-
top.span = top.fullspan - (ret.fullspan - ret.span)
258-
elseif kindof(ps.ws) == SemiColonWS
259-
push!(top, EXPR(:toplevel, EXPR[ret]))
260-
else
261-
push!(top, ret)
262-
end
263-
last_line = curr_line
264-
kindof(ps.nt) === Tokens.ENDMARKER && break # don't do loop check if eof
265-
prevpos = loop_check(ps, prevpos)
266-
end
267-
else
268-
if kindof(ps.nt) === Tokens.WHITESPACE || kindof(ps.nt) === Tokens.COMMENT
269-
next(ps)
270-
top = EXPR(:NOTHING, ps.nt.startbyte, ps.nt.startbyte, "")
271-
elseif !(ps.done || kindof(ps.nt) === Tokens.ENDMARKER)
272-
last_line = current_line(ps)
273-
if ps.nt.kind === Tokens.SEMICOLON
274-
next(ps)
275-
top = EXPR(:toplevel, EXPR[EXPR(:NOTHING, ps.nt.startbyte, ps.nt.startbyte, "")])
276-
else
277-
top = parse_doc(ps)
278-
end
279-
if kindof(ps.ws) == SemiColonWS# && curr_line == last_line
280-
top = EXPR(:toplevel, EXPR[top], nothing)
281-
prevpos = position(ps)
282-
while kindof(ps.ws) == SemiColonWS && current_line(ps) == last_line && kindof(ps.nt) != Tokens.ENDMARKER
283-
last_line = current_line(ps)
284-
ret = parse_doc(ps)
285-
push!(top, ret)
286-
prevpos = loop_check(ps, prevpos)
287-
end
288-
end
289-
else
290-
top = EXPR(:errortoken, EXPR[], nothing, 0, 0)
291-
end
292-
end
293-
294-
return top, ps
295-
end
296-
297-
function _continue_doc_parse(ps::ParseState, x::EXPR)
298-
kindof(ps.nt) !== Tokens.ENDMARKER &&
299-
headof(x) === :macrocall &&
300-
valof(x.args[1]) == "@doc" &&
301-
length(x.args) < 4 &&
302-
ps.t.endpos[1] + 1 == ps.nt.startpos[1]
303-
end
304-
305-
include("precompile.jl")
306-
_precompile()
30710
end

‎src/components/operators.jl

Lines changed: 0 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
1-
import Tokenize.Tokens: isoperator
21
precedence(op::Int) = op < Tokens.end_assignments ? AssignmentOp :
32
op < Tokens.end_pairarrow ? 2 :
43
op < Tokens.end_conditional ? ConditionalOp :

‎src/lexer.jl

Lines changed: 0 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,3 @@
1-
import Tokenize.Lexers: peekchar, readchar, iswhitespace, emit, emit_error, accept_batch, eof
2-
31
const EmptyWS = Tokens.EMPTY_WS
42
const SemiColonWS = Tokens.SEMICOLON_WS
53
const NewLineWS = Tokens.NEWLINE_WS

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