mirror of
https://github.com/S2-/minifyfromhtml.git
synced 2025-08-03 12:20:04 +02:00
update minify
This commit is contained in:
278
node_modules/uglify-js/lib/output.js
generated
vendored
278
node_modules/uglify-js/lib/output.js
generated
vendored
@@ -43,8 +43,6 @@
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"use strict";
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var EXPECT_DIRECTIVE = /^$|[;{][\s\n]*$/;
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function is_some_comments(comment) {
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// multiline comment
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return comment.type == "comment2" && /@preserve|@license|@cc_on/i.test(comment.value);
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@@ -91,13 +89,11 @@ function OutputStream(options) {
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comment_filter = function(comment) {
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return comment.type != "comment5" && comments.test(comment.value);
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};
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}
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else if (typeof comments === "function") {
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} else if (typeof comments === "function") {
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comment_filter = function(comment) {
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return comment.type != "comment5" && comments(this, comment);
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};
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}
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else if (comments === "some") {
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} else if (comments === "some") {
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comment_filter = is_some_comments;
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} else { // NOTE includes "all" option
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comment_filter = return_true;
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@@ -123,21 +119,25 @@ function OutputStream(options) {
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});
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} : function(str) {
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var s = "";
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for (var i = 0, len = str.length; i < len; i++) {
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if (is_surrogate_pair_head(str[i]) && !is_surrogate_pair_tail(str[i + 1])
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|| is_surrogate_pair_tail(str[i]) && !is_surrogate_pair_head(str[i - 1])) {
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s += "\\u" + str.charCodeAt(i).toString(16);
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} else {
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s += str[i];
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for (var i = 0, j = 0; i < str.length; i++) {
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var code = str.charCodeAt(i);
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if (is_surrogate_pair_head(code)) {
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if (is_surrogate_pair_tail(str.charCodeAt(i + 1))) {
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i++;
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continue;
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}
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} else if (!is_surrogate_pair_tail(code)) {
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continue;
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}
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s += str.slice(j, i) + "\\u" + code.toString(16);
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j = i + 1;
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}
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return s;
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return j == 0 ? str : s + str.slice(j);
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};
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function make_string(str, quote) {
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var dq = 0, sq = 0;
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str = str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g,
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function(s, i) {
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str = str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g, function(s, i) {
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switch (s) {
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case '"': ++dq; return '"';
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case "'": ++sq; return "'";
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@@ -217,23 +217,12 @@ function OutputStream(options) {
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var flush_mappings = mappings ? function() {
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mappings.forEach(function(mapping) {
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try {
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options.source_map.add(
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mapping.token.file,
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mapping.line, mapping.col,
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mapping.token.line, mapping.token.col,
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!mapping.name && mapping.token.type == "name" ? mapping.token.value : mapping.name
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);
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} catch(ex) {
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AST_Node.warn("Couldn't figure out mapping for {file}:{line},{col} → {cline},{ccol} [{name}]", {
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file: mapping.token.file,
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line: mapping.token.line,
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col: mapping.token.col,
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cline: mapping.line,
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ccol: mapping.col,
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name: mapping.name || ""
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})
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}
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options.source_map.add(
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mapping.token.file,
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mapping.line, mapping.col,
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mapping.token.line, mapping.token.col,
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!mapping.name && mapping.token.type == "name" ? mapping.token.value : mapping.name
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);
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});
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mappings = [];
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} : noop;
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@@ -283,7 +272,7 @@ function OutputStream(options) {
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}
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}
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newline_insert = -1;
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var prev = last.charAt(last.length - 1);
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var prev = last.slice(-1);
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if (might_need_semicolon) {
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might_need_semicolon = false;
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@@ -312,16 +301,16 @@ function OutputStream(options) {
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}
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if (might_need_space) {
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if ((is_identifier_char(prev)
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&& (is_identifier_char(ch) || ch == "\\"))
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if (is_identifier_char(prev) && (is_identifier_char(ch) || ch == "\\")
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|| (ch == "/" && ch == prev)
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|| ((ch == "+" || ch == "-") && ch == last))
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{
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|| ((ch == "+" || ch == "-") && ch == last)
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|| str == "--" && last == "!"
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|| last == "--" && ch == ">") {
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OUTPUT += " ";
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current_col++;
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current_pos++;
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}
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might_need_space = false;
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if (prev != "<" || str != "!") might_need_space = false;
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}
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if (mapping_token) {
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@@ -336,7 +325,7 @@ function OutputStream(options) {
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}
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OUTPUT += str;
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has_parens = str[str.length - 1] == "(";
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has_parens = str.slice(-1) == "(";
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current_pos += str.length;
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var a = str.split(/\r?\n/), n = a.length - 1;
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current_line += n;
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@@ -392,7 +381,7 @@ function OutputStream(options) {
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};
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function force_semicolon() {
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might_need_semicolon = false;
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if (might_need_semicolon) print(";");
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print(";");
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}
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@@ -462,16 +451,11 @@ function OutputStream(options) {
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function prepend_comments(node) {
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var self = this;
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var start = node.start;
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if (!start) return;
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if (start.comments_before && start.comments_before._dumped === self) return;
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var comments = start.comments_before;
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if (!comments) {
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comments = start.comments_before = [];
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}
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comments._dumped = self;
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var scan = node instanceof AST_Exit && node.value;
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var comments = dump(node);
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if (!comments) comments = [];
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if (node instanceof AST_Exit && node.value) {
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if (scan) {
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var tw = new TreeWalker(function(node) {
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var parent = tw.parent();
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if (parent instanceof AST_Exit
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@@ -482,11 +466,8 @@ function OutputStream(options) {
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|| parent instanceof AST_Sequence && parent.expressions[0] === node
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|| parent instanceof AST_Sub && parent.expression === node
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|| parent instanceof AST_UnaryPostfix) {
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var text = node.start.comments_before;
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if (text && text._dumped !== self) {
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text._dumped = self;
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comments = comments.concat(text);
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}
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var before = dump(node);
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if (before) comments = comments.concat(before);
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} else {
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return true;
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}
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@@ -529,13 +510,29 @@ function OutputStream(options) {
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}
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});
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if (!last_nlb) {
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if (start.nlb) {
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if (node.start.nlb) {
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print("\n");
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indent();
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} else {
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space();
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}
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}
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function dump(node) {
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var token = node.start;
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if (!token) {
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if (!scan) return;
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node.start = token = new AST_Token();
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}
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var comments = token.comments_before;
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if (!comments) {
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if (!scan) return;
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token.comments_before = comments = [];
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}
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if (comments._dumped === self) return;
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comments._dumped = self;
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return comments;
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}
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}
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function append_comments(node, tail) {
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@@ -591,18 +588,7 @@ function OutputStream(options) {
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force_semicolon : force_semicolon,
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to_utf8 : to_utf8,
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print_name : function(name) { print(make_name(name)) },
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print_string : function(str, quote, escape_directive) {
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var encoded = encode_string(str, quote);
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if (escape_directive === true && encoded.indexOf("\\") === -1) {
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// Insert semicolons to break directive prologue
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if (!EXPECT_DIRECTIVE.test(OUTPUT)) {
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force_semicolon();
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}
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force_semicolon();
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}
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print(encoded);
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},
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encode_string : encode_string,
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print_string : function(str, quote) { print(encode_string(str, quote)) },
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next_indent : next_indent,
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with_indent : with_indent,
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with_block : with_block,
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@@ -640,18 +626,10 @@ function OutputStream(options) {
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nodetype.DEFMETHOD("_codegen", generator);
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}
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var in_directive = false;
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var active_scope = null;
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var use_asm = null;
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var use_asm = false;
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AST_Node.DEFMETHOD("print", function(stream, force_parens) {
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var self = this, generator = self._codegen;
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if (self instanceof AST_Scope) {
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active_scope = self;
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}
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else if (!use_asm && self instanceof AST_Directive && self.value == "use asm") {
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use_asm = active_scope;
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}
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function doit() {
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stream.prepend_comments(self);
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self.add_source_map(stream);
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@@ -665,9 +643,6 @@ function OutputStream(options) {
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doit();
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}
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stream.pop_node();
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if (self === use_asm) {
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use_asm = null;
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}
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});
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AST_Node.DEFMETHOD("_print", AST_Node.prototype.print);
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@@ -719,16 +694,23 @@ function OutputStream(options) {
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PARENS(AST_Sequence, function(output) {
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var p = output.parent();
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return p instanceof AST_Call // (foo, bar)() or foo(1, (2, 3), 4)
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|| p instanceof AST_Unary // !(foo, bar, baz)
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|| p instanceof AST_Binary // 1 + (2, 3) + 4 ==> 8
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|| p instanceof AST_VarDef // var a = (1, 2), b = a + a; ==> b == 4
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|| p instanceof AST_PropAccess // (1, {foo:2}).foo or (1, {foo:2})["foo"] ==> 2
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|| p instanceof AST_Array // [ 1, (2, 3), 4 ] ==> [ 1, 3, 4 ]
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|| p instanceof AST_ObjectProperty // { foo: (1, 2) }.foo ==> 2
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|| p instanceof AST_Conditional /* (false, true) ? (a = 10, b = 20) : (c = 30)
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* ==> 20 (side effect, set a := 10 and b := 20) */
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;
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// (foo, bar)() or foo(1, (2, 3), 4)
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return p instanceof AST_Call
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// !(foo, bar, baz)
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|| p instanceof AST_Unary
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// 1 + (2, 3) + 4 ==> 8
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|| p instanceof AST_Binary
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// var a = (1, 2), b = a + a; ==> b == 4
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|| p instanceof AST_VarDef
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// (1, {foo:2}).foo or (1, {foo:2})["foo"] ==> 2
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|| p instanceof AST_PropAccess && p.expression === this
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// [ 1, (2, 3), 4 ] ==> [ 1, 3, 4 ]
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|| p instanceof AST_Array
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// { foo: (1, 2) }.foo ==> 2
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|| p instanceof AST_ObjectProperty
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||||
// (false, true) ? (a = 10, b = 20) : (c = 30)
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||||
// ==> 20 (side effect, set a := 10 and b := 20)
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|| p instanceof AST_Conditional;
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});
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PARENS(AST_Binary, function(output) {
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@@ -800,7 +782,7 @@ function OutputStream(options) {
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||||
PARENS(AST_Number, function(output) {
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var p = output.parent();
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if (p instanceof AST_PropAccess && p.expression === this) {
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var value = this.getValue();
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var value = this.value;
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||||
if (value < 0 || /^0/.test(make_num(value))) {
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return true;
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}
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@@ -829,7 +811,18 @@ function OutputStream(options) {
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/* -----[ PRINTERS ]----- */
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DEFPRINT(AST_Directive, function(self, output) {
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output.print_string(self.value, self.quote);
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var quote = self.quote;
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var value = self.value;
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switch (output.option("quote_style")) {
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||||
case 0:
|
||||
case 2:
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if (value.indexOf('"') == -1) quote = '"';
|
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break;
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||||
case 1:
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||||
if (value.indexOf("'") == -1) quote = "'";
|
||||
break;
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||||
}
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output.print(quote + value + quote);
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output.semicolon();
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});
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DEFPRINT(AST_Debugger, function(self, output) {
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@@ -841,30 +834,27 @@ function OutputStream(options) {
|
||||
|
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function display_body(body, is_toplevel, output, allow_directives) {
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||||
var last = body.length - 1;
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||||
in_directive = allow_directives;
|
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var in_directive = allow_directives;
|
||||
var was_asm = use_asm;
|
||||
body.forEach(function(stmt, i) {
|
||||
if (in_directive === true && !(stmt instanceof AST_Directive ||
|
||||
stmt instanceof AST_EmptyStatement ||
|
||||
(stmt instanceof AST_SimpleStatement && stmt.body instanceof AST_String)
|
||||
)) {
|
||||
in_directive = false;
|
||||
}
|
||||
if (!(stmt instanceof AST_EmptyStatement)) {
|
||||
output.indent();
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||||
stmt.print(output);
|
||||
if (!(i == last && is_toplevel)) {
|
||||
output.newline();
|
||||
if (is_toplevel) output.newline();
|
||||
if (in_directive) {
|
||||
if (stmt instanceof AST_Directive) {
|
||||
if (stmt.value == "use asm") use_asm = true;
|
||||
} else if (!(stmt instanceof AST_EmptyStatement)) {
|
||||
if (stmt instanceof AST_SimpleStatement && stmt.body instanceof AST_String) {
|
||||
output.force_semicolon();
|
||||
}
|
||||
in_directive = false;
|
||||
}
|
||||
}
|
||||
if (in_directive === true &&
|
||||
stmt instanceof AST_SimpleStatement &&
|
||||
stmt.body instanceof AST_String
|
||||
) {
|
||||
in_directive = false;
|
||||
}
|
||||
if (stmt instanceof AST_EmptyStatement) return;
|
||||
output.indent();
|
||||
stmt.print(output);
|
||||
if (i == last && is_toplevel) return;
|
||||
output.newline();
|
||||
if (is_toplevel) output.newline();
|
||||
});
|
||||
in_directive = false;
|
||||
use_asm = was_asm;
|
||||
}
|
||||
|
||||
AST_StatementWithBody.DEFMETHOD("_do_print_body", function(output) {
|
||||
@@ -1048,11 +1038,9 @@ function OutputStream(options) {
|
||||
return;
|
||||
}
|
||||
b = b.alternative;
|
||||
}
|
||||
else if (b instanceof AST_StatementWithBody) {
|
||||
} else if (b instanceof AST_StatementWithBody) {
|
||||
b = b.body;
|
||||
}
|
||||
else break;
|
||||
} else break;
|
||||
}
|
||||
force_statement(self.body, output);
|
||||
}
|
||||
@@ -1224,7 +1212,7 @@ function OutputStream(options) {
|
||||
output.print_string(prop);
|
||||
output.print("]");
|
||||
} else {
|
||||
if (expr instanceof AST_Number && expr.getValue() >= 0) {
|
||||
if (expr instanceof AST_Number && expr.value >= 0) {
|
||||
if (!/[xa-f.)]/i.test(output.last())) {
|
||||
output.print(".");
|
||||
}
|
||||
@@ -1257,29 +1245,10 @@ function OutputStream(options) {
|
||||
output.print(self.operator);
|
||||
});
|
||||
DEFPRINT(AST_Binary, function(self, output) {
|
||||
var op = self.operator;
|
||||
self.left.print(output);
|
||||
if (op[0] == ">" /* ">>" ">>>" ">" ">=" */
|
||||
&& self.left instanceof AST_UnaryPostfix
|
||||
&& self.left.operator == "--") {
|
||||
// space is mandatory to avoid outputting -->
|
||||
output.print(" ");
|
||||
} else {
|
||||
// the space is optional depending on "beautify"
|
||||
output.space();
|
||||
}
|
||||
output.print(op);
|
||||
if ((op == "<" || op == "<<")
|
||||
&& self.right instanceof AST_UnaryPrefix
|
||||
&& self.right.operator == "!"
|
||||
&& self.right.expression instanceof AST_UnaryPrefix
|
||||
&& self.right.expression.operator == "--") {
|
||||
// space is mandatory to avoid outputting <!--
|
||||
output.print(" ");
|
||||
} else {
|
||||
// the space is optional depending on "beautify"
|
||||
output.space();
|
||||
}
|
||||
output.space();
|
||||
output.print(self.operator);
|
||||
output.space();
|
||||
self.right.print(output);
|
||||
});
|
||||
DEFPRINT(AST_Conditional, function(self, output) {
|
||||
@@ -1360,34 +1329,53 @@ function OutputStream(options) {
|
||||
});
|
||||
DEFPRINT(AST_Symbol, function(self, output) {
|
||||
var def = self.definition();
|
||||
output.print_name(def ? def.mangled_name || def.name : self.name);
|
||||
output.print_name(def && def.mangled_name || self.name);
|
||||
});
|
||||
DEFPRINT(AST_Hole, noop);
|
||||
DEFPRINT(AST_This, function(self, output) {
|
||||
output.print("this");
|
||||
});
|
||||
DEFPRINT(AST_Constant, function(self, output) {
|
||||
output.print(self.getValue());
|
||||
output.print(self.value);
|
||||
});
|
||||
DEFPRINT(AST_String, function(self, output) {
|
||||
output.print_string(self.getValue(), self.quote, in_directive);
|
||||
output.print_string(self.value, self.quote);
|
||||
});
|
||||
DEFPRINT(AST_Number, function(self, output) {
|
||||
if (use_asm && self.start && self.start.raw != null) {
|
||||
output.print(self.start.raw);
|
||||
} else {
|
||||
output.print(make_num(self.getValue()));
|
||||
output.print(make_num(self.value));
|
||||
}
|
||||
});
|
||||
|
||||
DEFPRINT(AST_RegExp, function(self, output) {
|
||||
var regexp = self.getValue();
|
||||
var regexp = self.value;
|
||||
var str = regexp.toString();
|
||||
if (regexp.raw_source) {
|
||||
str = "/" + regexp.raw_source + str.slice(str.lastIndexOf("/"));
|
||||
}
|
||||
str = output.to_utf8(str);
|
||||
output.print(str);
|
||||
output.print(output.to_utf8(str).replace(/\\(?:\0(?![0-9])|[^\0])/g, function(seq) {
|
||||
switch (seq[1]) {
|
||||
case "\n": return "\\n";
|
||||
case "\r": return "\\r";
|
||||
case "\t": return "\t";
|
||||
case "\b": return "\b";
|
||||
case "\f": return "\f";
|
||||
case "\0": return "\0";
|
||||
case "\x0B": return "\v";
|
||||
case "\u2028": return "\\u2028";
|
||||
case "\u2029": return "\\u2029";
|
||||
default: return seq;
|
||||
}
|
||||
}).replace(/[\n\r\u2028\u2029]/g, function(c) {
|
||||
switch (c) {
|
||||
case "\n": return "\\n";
|
||||
case "\r": return "\\r";
|
||||
case "\u2028": return "\\u2028";
|
||||
case "\u2029": return "\\u2029";
|
||||
}
|
||||
}));
|
||||
var p = output.parent();
|
||||
if (p instanceof AST_Binary && /^in/.test(p.operator) && p.left === self)
|
||||
output.print(" ");
|
||||
|
Reference in New Issue
Block a user