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implement annotations (#4763)

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This commit is contained in:
Alex Lam S.L
2021-03-12 19:40:49 +00:00
committed by GitHub
parent c36c3cb470
commit 3b5d5014e0
15 changed files with 690 additions and 552 deletions
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28
lib/parse.js
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@@ -1758,7 +1758,6 @@ function parse($TEXT, options) {
args : args,
end : prev()
});
mark_pure(call);
return subscripts(call, allow_calls);
};
@@ -1840,7 +1839,6 @@ function parse($TEXT, options) {
end.comments_after.length = 0;
end.comments_after = ex.end.comments_after;
ex.end = end;
if (ex instanceof AST_Call) mark_pure(ex);
if (is("punc", "=>")) return arrow(ex instanceof AST_Sequence ? ex.expressions : [ ex ], start);
return subscripts(ex, allow_calls);
case "[":
@@ -2217,19 +2215,6 @@ function parse($TEXT, options) {
});
}
function mark_pure(call) {
var start = call.start;
var comments = start.comments_before;
var i = HOP(start, "comments_before_length") ? start.comments_before_length : comments.length;
while (--i >= 0) {
var comment = comments[i];
if (/[@#]__PURE__/.test(comment.value)) {
call.pure = comment;
break;
}
}
}
function template(tag) {
var read = S.input.context().read_template;
var strings = [];
@@ -2277,7 +2262,6 @@ function parse($TEXT, options) {
args : expr_list(")", !options.strict),
end : prev()
});
mark_pure(call);
return subscripts(call, true);
}
if (is("punc", "`")) {
@@ -2286,6 +2270,18 @@ function parse($TEXT, options) {
tmpl.end = prev();
return subscripts(tmpl, allow_calls);
}
if (expr instanceof AST_Call && !expr.pure) {
var start = expr.start;
var comments = start.comments_before;
var i = HOP(start, "comments_before_length") ? start.comments_before_length : comments.length;
while (--i >= 0) {
var match = /[@#]__PURE__/.exec(comments[i].value);
if (match) {
expr.pure = match[0];
break;
}
}
}
return expr;
};