540 lines
12 KiB
JavaScript
540 lines
12 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.default = void 0;
|
|
|
|
var _buffer = require("./buffer");
|
|
|
|
var n = require("./node");
|
|
|
|
var t = require("@babel/types");
|
|
|
|
var generatorFunctions = require("./generators");
|
|
|
|
const SCIENTIFIC_NOTATION = /e/i;
|
|
const ZERO_DECIMAL_INTEGER = /\.0+$/;
|
|
const NON_DECIMAL_LITERAL = /^0[box]/;
|
|
const PURE_ANNOTATION_RE = /^\s*[@#]__PURE__\s*$/;
|
|
const {
|
|
isProgram,
|
|
isFile,
|
|
isEmptyStatement
|
|
} = t;
|
|
const {
|
|
needsParens,
|
|
needsWhitespaceAfter,
|
|
needsWhitespaceBefore
|
|
} = n;
|
|
|
|
class Printer {
|
|
constructor(format, map) {
|
|
this.inForStatementInitCounter = 0;
|
|
this._printStack = [];
|
|
this._indent = 0;
|
|
this._insideAux = false;
|
|
this._parenPushNewlineState = null;
|
|
this._noLineTerminator = false;
|
|
this._printAuxAfterOnNextUserNode = false;
|
|
this._printedComments = new WeakSet();
|
|
this._endsWithInteger = false;
|
|
this._endsWithWord = false;
|
|
this.format = format;
|
|
this._buf = new _buffer.default(map);
|
|
}
|
|
|
|
generate(ast) {
|
|
this.print(ast);
|
|
|
|
this._maybeAddAuxComment();
|
|
|
|
return this._buf.get();
|
|
}
|
|
|
|
indent() {
|
|
if (this.format.compact || this.format.concise) return;
|
|
this._indent++;
|
|
}
|
|
|
|
dedent() {
|
|
if (this.format.compact || this.format.concise) return;
|
|
this._indent--;
|
|
}
|
|
|
|
semicolon(force = false) {
|
|
this._maybeAddAuxComment();
|
|
|
|
this._append(";", !force);
|
|
}
|
|
|
|
rightBrace() {
|
|
if (this.format.minified) {
|
|
this._buf.removeLastSemicolon();
|
|
}
|
|
|
|
this.token("}");
|
|
}
|
|
|
|
space(force = false) {
|
|
if (this.format.compact) return;
|
|
|
|
if (force) {
|
|
this._space();
|
|
} else if (this._buf.hasContent()) {
|
|
const lastCp = this.getLastChar();
|
|
|
|
if (lastCp !== 32 && lastCp !== 10) {
|
|
this._space();
|
|
}
|
|
}
|
|
}
|
|
|
|
word(str) {
|
|
if (this._endsWithWord || this.endsWith(47) && str.charCodeAt(0) === 47) {
|
|
this._space();
|
|
}
|
|
|
|
this._maybeAddAuxComment();
|
|
|
|
this._append(str);
|
|
|
|
this._endsWithWord = true;
|
|
}
|
|
|
|
number(str) {
|
|
this.word(str);
|
|
this._endsWithInteger = Number.isInteger(+str) && !NON_DECIMAL_LITERAL.test(str) && !SCIENTIFIC_NOTATION.test(str) && !ZERO_DECIMAL_INTEGER.test(str) && str.charCodeAt(str.length - 1) !== 46;
|
|
}
|
|
|
|
token(str) {
|
|
const lastChar = this.getLastChar();
|
|
const strFirst = str.charCodeAt(0);
|
|
|
|
if (str === "--" && lastChar === 33 || strFirst === 43 && lastChar === 43 || strFirst === 45 && lastChar === 45 || strFirst === 46 && this._endsWithInteger) {
|
|
this._space();
|
|
}
|
|
|
|
this._maybeAddAuxComment();
|
|
|
|
this._append(str);
|
|
}
|
|
|
|
newline(i = 1) {
|
|
if (this.format.retainLines || this.format.compact) return;
|
|
|
|
if (this.format.concise) {
|
|
this.space();
|
|
return;
|
|
}
|
|
|
|
const charBeforeNewline = this.endsWithCharAndNewline();
|
|
if (charBeforeNewline === 10) return;
|
|
|
|
if (charBeforeNewline === 123 || charBeforeNewline === 58) {
|
|
i--;
|
|
}
|
|
|
|
if (i <= 0) return;
|
|
|
|
for (let j = 0; j < i; j++) {
|
|
this._newline();
|
|
}
|
|
}
|
|
|
|
endsWith(char) {
|
|
return this.getLastChar() === char;
|
|
}
|
|
|
|
getLastChar() {
|
|
return this._buf.getLastChar();
|
|
}
|
|
|
|
endsWithCharAndNewline() {
|
|
return this._buf.endsWithCharAndNewline();
|
|
}
|
|
|
|
removeTrailingNewline() {
|
|
this._buf.removeTrailingNewline();
|
|
}
|
|
|
|
exactSource(loc, cb) {
|
|
this._catchUp("start", loc);
|
|
|
|
this._buf.exactSource(loc, cb);
|
|
}
|
|
|
|
source(prop, loc) {
|
|
this._catchUp(prop, loc);
|
|
|
|
this._buf.source(prop, loc);
|
|
}
|
|
|
|
withSource(prop, loc, cb) {
|
|
this._catchUp(prop, loc);
|
|
|
|
this._buf.withSource(prop, loc, cb);
|
|
}
|
|
|
|
_space() {
|
|
this._append(" ", true);
|
|
}
|
|
|
|
_newline() {
|
|
this._append("\n", true);
|
|
}
|
|
|
|
_append(str, queue = false) {
|
|
this._maybeAddParen(str);
|
|
|
|
this._maybeIndent(str);
|
|
|
|
if (queue) this._buf.queue(str);else this._buf.append(str);
|
|
this._endsWithWord = false;
|
|
this._endsWithInteger = false;
|
|
}
|
|
|
|
_maybeIndent(str) {
|
|
if (this._indent && this.endsWith(10) && str.charCodeAt(0) !== 10) {
|
|
this._buf.queue(this._getIndent());
|
|
}
|
|
}
|
|
|
|
_maybeAddParen(str) {
|
|
const parenPushNewlineState = this._parenPushNewlineState;
|
|
if (!parenPushNewlineState) return;
|
|
let i;
|
|
|
|
for (i = 0; i < str.length && str[i] === " "; i++) continue;
|
|
|
|
if (i === str.length) {
|
|
return;
|
|
}
|
|
|
|
const cha = str[i];
|
|
|
|
if (cha !== "\n") {
|
|
if (cha !== "/" || i + 1 === str.length) {
|
|
this._parenPushNewlineState = null;
|
|
return;
|
|
}
|
|
|
|
const chaPost = str[i + 1];
|
|
|
|
if (chaPost === "*") {
|
|
if (PURE_ANNOTATION_RE.test(str.slice(i + 2, str.length - 2))) {
|
|
return;
|
|
}
|
|
} else if (chaPost !== "/") {
|
|
this._parenPushNewlineState = null;
|
|
return;
|
|
}
|
|
}
|
|
|
|
this.token("(");
|
|
this.indent();
|
|
parenPushNewlineState.printed = true;
|
|
}
|
|
|
|
_catchUp(prop, loc) {
|
|
if (!this.format.retainLines) return;
|
|
const pos = loc ? loc[prop] : null;
|
|
|
|
if ((pos == null ? void 0 : pos.line) != null) {
|
|
const count = pos.line - this._buf.getCurrentLine();
|
|
|
|
for (let i = 0; i < count; i++) {
|
|
this._newline();
|
|
}
|
|
}
|
|
}
|
|
|
|
_getIndent() {
|
|
return this.format.indent.style.repeat(this._indent);
|
|
}
|
|
|
|
startTerminatorless(isLabel = false) {
|
|
if (isLabel) {
|
|
this._noLineTerminator = true;
|
|
return null;
|
|
} else {
|
|
return this._parenPushNewlineState = {
|
|
printed: false
|
|
};
|
|
}
|
|
}
|
|
|
|
endTerminatorless(state) {
|
|
this._noLineTerminator = false;
|
|
|
|
if (state != null && state.printed) {
|
|
this.dedent();
|
|
this.newline();
|
|
this.token(")");
|
|
}
|
|
}
|
|
|
|
print(node, parent) {
|
|
if (!node) return;
|
|
const oldConcise = this.format.concise;
|
|
|
|
if (node._compact) {
|
|
this.format.concise = true;
|
|
}
|
|
|
|
const printMethod = this[node.type];
|
|
|
|
if (!printMethod) {
|
|
throw new ReferenceError(`unknown node of type ${JSON.stringify(node.type)} with constructor ${JSON.stringify(node == null ? void 0 : node.constructor.name)}`);
|
|
}
|
|
|
|
this._printStack.push(node);
|
|
|
|
const oldInAux = this._insideAux;
|
|
this._insideAux = !node.loc;
|
|
|
|
this._maybeAddAuxComment(this._insideAux && !oldInAux);
|
|
|
|
let shouldPrintParens = needsParens(node, parent, this._printStack);
|
|
|
|
if (this.format.retainFunctionParens && node.type === "FunctionExpression" && node.extra && node.extra.parenthesized) {
|
|
shouldPrintParens = true;
|
|
}
|
|
|
|
if (shouldPrintParens) this.token("(");
|
|
|
|
this._printLeadingComments(node);
|
|
|
|
const loc = isProgram(node) || isFile(node) ? null : node.loc;
|
|
this.withSource("start", loc, () => {
|
|
printMethod.call(this, node, parent);
|
|
});
|
|
|
|
this._printTrailingComments(node);
|
|
|
|
if (shouldPrintParens) this.token(")");
|
|
|
|
this._printStack.pop();
|
|
|
|
this.format.concise = oldConcise;
|
|
this._insideAux = oldInAux;
|
|
}
|
|
|
|
_maybeAddAuxComment(enteredPositionlessNode) {
|
|
if (enteredPositionlessNode) this._printAuxBeforeComment();
|
|
if (!this._insideAux) this._printAuxAfterComment();
|
|
}
|
|
|
|
_printAuxBeforeComment() {
|
|
if (this._printAuxAfterOnNextUserNode) return;
|
|
this._printAuxAfterOnNextUserNode = true;
|
|
const comment = this.format.auxiliaryCommentBefore;
|
|
|
|
if (comment) {
|
|
this._printComment({
|
|
type: "CommentBlock",
|
|
value: comment
|
|
});
|
|
}
|
|
}
|
|
|
|
_printAuxAfterComment() {
|
|
if (!this._printAuxAfterOnNextUserNode) return;
|
|
this._printAuxAfterOnNextUserNode = false;
|
|
const comment = this.format.auxiliaryCommentAfter;
|
|
|
|
if (comment) {
|
|
this._printComment({
|
|
type: "CommentBlock",
|
|
value: comment
|
|
});
|
|
}
|
|
}
|
|
|
|
getPossibleRaw(node) {
|
|
const extra = node.extra;
|
|
|
|
if (extra && extra.raw != null && extra.rawValue != null && node.value === extra.rawValue) {
|
|
return extra.raw;
|
|
}
|
|
}
|
|
|
|
printJoin(nodes, parent, opts = {}) {
|
|
if (!(nodes != null && nodes.length)) return;
|
|
if (opts.indent) this.indent();
|
|
const newlineOpts = {
|
|
addNewlines: opts.addNewlines
|
|
};
|
|
|
|
for (let i = 0; i < nodes.length; i++) {
|
|
const node = nodes[i];
|
|
if (!node) continue;
|
|
if (opts.statement) this._printNewline(true, node, parent, newlineOpts);
|
|
this.print(node, parent);
|
|
|
|
if (opts.iterator) {
|
|
opts.iterator(node, i);
|
|
}
|
|
|
|
if (opts.separator && i < nodes.length - 1) {
|
|
opts.separator.call(this);
|
|
}
|
|
|
|
if (opts.statement) this._printNewline(false, node, parent, newlineOpts);
|
|
}
|
|
|
|
if (opts.indent) this.dedent();
|
|
}
|
|
|
|
printAndIndentOnComments(node, parent) {
|
|
const indent = node.leadingComments && node.leadingComments.length > 0;
|
|
if (indent) this.indent();
|
|
this.print(node, parent);
|
|
if (indent) this.dedent();
|
|
}
|
|
|
|
printBlock(parent) {
|
|
const node = parent.body;
|
|
|
|
if (!isEmptyStatement(node)) {
|
|
this.space();
|
|
}
|
|
|
|
this.print(node, parent);
|
|
}
|
|
|
|
_printTrailingComments(node) {
|
|
this._printComments(this._getComments(false, node));
|
|
}
|
|
|
|
_printLeadingComments(node) {
|
|
this._printComments(this._getComments(true, node), true);
|
|
}
|
|
|
|
printInnerComments(node, indent = true) {
|
|
var _node$innerComments;
|
|
|
|
if (!((_node$innerComments = node.innerComments) != null && _node$innerComments.length)) return;
|
|
if (indent) this.indent();
|
|
|
|
this._printComments(node.innerComments);
|
|
|
|
if (indent) this.dedent();
|
|
}
|
|
|
|
printSequence(nodes, parent, opts = {}) {
|
|
opts.statement = true;
|
|
return this.printJoin(nodes, parent, opts);
|
|
}
|
|
|
|
printList(items, parent, opts = {}) {
|
|
if (opts.separator == null) {
|
|
opts.separator = commaSeparator;
|
|
}
|
|
|
|
return this.printJoin(items, parent, opts);
|
|
}
|
|
|
|
_printNewline(leading, node, parent, opts) {
|
|
if (this.format.retainLines || this.format.compact) return;
|
|
|
|
if (this.format.concise) {
|
|
this.space();
|
|
return;
|
|
}
|
|
|
|
let lines = 0;
|
|
|
|
if (this._buf.hasContent()) {
|
|
if (!leading) lines++;
|
|
if (opts.addNewlines) lines += opts.addNewlines(leading, node) || 0;
|
|
const needs = leading ? needsWhitespaceBefore : needsWhitespaceAfter;
|
|
if (needs(node, parent)) lines++;
|
|
}
|
|
|
|
this.newline(Math.min(2, lines));
|
|
}
|
|
|
|
_getComments(leading, node) {
|
|
return node && (leading ? node.leadingComments : node.trailingComments) || [];
|
|
}
|
|
|
|
_printComment(comment, skipNewLines) {
|
|
if (!this.format.shouldPrintComment(comment.value)) return;
|
|
if (comment.ignore) return;
|
|
if (this._printedComments.has(comment)) return;
|
|
|
|
this._printedComments.add(comment);
|
|
|
|
const isBlockComment = comment.type === "CommentBlock";
|
|
const printNewLines = isBlockComment && !skipNewLines && !this._noLineTerminator;
|
|
if (printNewLines && this._buf.hasContent()) this.newline(1);
|
|
const lastCharCode = this.getLastChar();
|
|
|
|
if (lastCharCode !== 91 && lastCharCode !== 123) {
|
|
this.space();
|
|
}
|
|
|
|
let val = !isBlockComment && !this._noLineTerminator ? `//${comment.value}\n` : `/*${comment.value}*/`;
|
|
|
|
if (isBlockComment && this.format.indent.adjustMultilineComment) {
|
|
var _comment$loc;
|
|
|
|
const offset = (_comment$loc = comment.loc) == null ? void 0 : _comment$loc.start.column;
|
|
|
|
if (offset) {
|
|
const newlineRegex = new RegExp("\\n\\s{1," + offset + "}", "g");
|
|
val = val.replace(newlineRegex, "\n");
|
|
}
|
|
|
|
const indentSize = Math.max(this._getIndent().length, this.format.retainLines ? 0 : this._buf.getCurrentColumn());
|
|
val = val.replace(/\n(?!$)/g, `\n${" ".repeat(indentSize)}`);
|
|
}
|
|
|
|
if (this.endsWith(47)) this._space();
|
|
this.withSource("start", comment.loc, () => {
|
|
this._append(val);
|
|
});
|
|
if (printNewLines) this.newline(1);
|
|
}
|
|
|
|
_printComments(comments, inlinePureAnnotation) {
|
|
if (!(comments != null && comments.length)) return;
|
|
|
|
if (inlinePureAnnotation && comments.length === 1 && PURE_ANNOTATION_RE.test(comments[0].value)) {
|
|
this._printComment(comments[0], this._buf.hasContent() && !this.endsWith(10));
|
|
} else {
|
|
for (const comment of comments) {
|
|
this._printComment(comment);
|
|
}
|
|
}
|
|
}
|
|
|
|
printAssertions(node) {
|
|
var _node$assertions;
|
|
|
|
if ((_node$assertions = node.assertions) != null && _node$assertions.length) {
|
|
this.space();
|
|
this.word("assert");
|
|
this.space();
|
|
this.token("{");
|
|
this.space();
|
|
this.printList(node.assertions, node);
|
|
this.space();
|
|
this.token("}");
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
Object.assign(Printer.prototype, generatorFunctions);
|
|
{
|
|
Printer.prototype.Noop = function Noop() {};
|
|
}
|
|
var _default = Printer;
|
|
exports.default = _default;
|
|
|
|
function commaSeparator() {
|
|
this.token(",");
|
|
this.space();
|
|
} |