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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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31
lib/output.js
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@@ -52,6 +52,7 @@ function OutputStream(options) {
var readonly = !options;
options = defaults(options, {
annotations : false,
ascii_only : false,
beautify : false,
braces : false,
@@ -500,12 +501,14 @@ function OutputStream(options) {
space();
}
}
var value = c.value.replace(/[@#]__PURE__/g, " ");
if (/^\s*$/.test(value)) return;
if (/comment[134]/.test(c.type)) {
print("//" + c.value.replace(/[@#]__PURE__/g, " ") + "\n");
print("//" + value + "\n");
indent();
last_nlb = true;
} else if (c.type == "comment2") {
print("/*" + c.value.replace(/[@#]__PURE__/g, " ") + "*/");
print("/*" + value + "*/");
last_nlb = false;
}
});
@@ -558,11 +561,13 @@ function OutputStream(options) {
} else if (i > 0 || !tail) {
space();
}
var value = c.value.replace(/[@#]__PURE__/g, " ");
if (/^\s*$/.test(value)) return;
if (/comment[134]/.test(c.type)) {
print("//" + c.value.replace(/[@#]__PURE__/g, " "));
print("//" + value);
need_newline_indented = true;
} else if (c.type == "comment2") {
print("/*" + c.value.replace(/[@#]__PURE__/g, " ") + "*/");
print("/*" + value + "*/");
need_space = true;
}
});
@@ -1436,6 +1441,17 @@ function OutputStream(options) {
});
/* -----[ other expressions ]----- */
function print_annotation(self, output) {
if (!output.option("annotations")) return;
if (!self.pure) return;
var level = 0, parent = self, node;
do {
node = parent;
parent = output.parent(level++);
if (parent instanceof AST_Call && parent.expression === node) return;
} while (parent instanceof AST_PropAccess && parent.expression === node);
output.print("/*" + self.pure + "*/");
}
function print_call_args(self, output) {
if (self.expression instanceof AST_Call || self.expression instanceof AST_Lambda) {
output.add_mapping(self.start);
@@ -1448,11 +1464,14 @@ function OutputStream(options) {
});
}
DEFPRINT(AST_Call, function(output) {
this.expression.print(output);
print_call_args(this, output);
var self = this;
print_annotation(self, output);
self.expression.print(output);
print_call_args(self, output);
});
DEFPRINT(AST_New, function(output) {
var self = this;
print_annotation(self, output);
output.print("new");
output.space();
self.expression.print(output);