@angular/compiler
Version:
Angular - the compiler library
200 lines • 23.8 kB
JavaScript
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define("@angular/compiler/src/parse_util", ["require", "exports", "@angular/compiler/src/chars", "@angular/compiler/src/compile_metadata"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.r3JitTypeSourceSpan = exports.typeSourceSpan = exports.ParseError = exports.ParseErrorLevel = exports.ParseSourceSpan = exports.ParseSourceFile = exports.ParseLocation = void 0;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
var chars = require("@angular/compiler/src/chars");
var compile_metadata_1 = require("@angular/compiler/src/compile_metadata");
var ParseLocation = /** @class */ (function () {
function ParseLocation(file, offset, line, col) {
this.file = file;
this.offset = offset;
this.line = line;
this.col = col;
}
ParseLocation.prototype.toString = function () {
return this.offset != null ? this.file.url + "@" + this.line + ":" + this.col : this.file.url;
};
ParseLocation.prototype.moveBy = function (delta) {
var source = this.file.content;
var len = source.length;
var offset = this.offset;
var line = this.line;
var col = this.col;
while (offset > 0 && delta < 0) {
offset--;
delta++;
var ch = source.charCodeAt(offset);
if (ch == chars.$LF) {
line--;
var priorLine = source.substr(0, offset - 1).lastIndexOf(String.fromCharCode(chars.$LF));
col = priorLine > 0 ? offset - priorLine : offset;
}
else {
col--;
}
}
while (offset < len && delta > 0) {
var ch = source.charCodeAt(offset);
offset++;
delta--;
if (ch == chars.$LF) {
line++;
col = 0;
}
else {
col++;
}
}
return new ParseLocation(this.file, offset, line, col);
};
// Return the source around the location
// Up to `maxChars` or `maxLines` on each side of the location
ParseLocation.prototype.getContext = function (maxChars, maxLines) {
var content = this.file.content;
var startOffset = this.offset;
if (startOffset != null) {
if (startOffset > content.length - 1) {
startOffset = content.length - 1;
}
var endOffset = startOffset;
var ctxChars = 0;
var ctxLines = 0;
while (ctxChars < maxChars && startOffset > 0) {
startOffset--;
ctxChars++;
if (content[startOffset] == '\n') {
if (++ctxLines == maxLines) {
break;
}
}
}
ctxChars = 0;
ctxLines = 0;
while (ctxChars < maxChars && endOffset < content.length - 1) {
endOffset++;
ctxChars++;
if (content[endOffset] == '\n') {
if (++ctxLines == maxLines) {
break;
}
}
}
return {
before: content.substring(startOffset, this.offset),
after: content.substring(this.offset, endOffset + 1),
};
}
return null;
};
return ParseLocation;
}());
exports.ParseLocation = ParseLocation;
var ParseSourceFile = /** @class */ (function () {
function ParseSourceFile(content, url) {
this.content = content;
this.url = url;
}
return ParseSourceFile;
}());
exports.ParseSourceFile = ParseSourceFile;
var ParseSourceSpan = /** @class */ (function () {
/**
* Create an object that holds information about spans of tokens/nodes captured during
* lexing/parsing of text.
*
* @param start
* The location of the start of the span (having skipped leading trivia).
* Skipping leading trivia makes source-spans more "user friendly", since things like HTML
* elements will appear to begin at the start of the opening tag, rather than at the start of any
* leading trivia, which could include newlines.
*
* @param end
* The location of the end of the span.
*
* @param fullStart
* The start of the token without skipping the leading trivia.
* This is used by tooling that splits tokens further, such as extracting Angular interpolations
* from text tokens. Such tooling creates new source-spans relative to the original token's
* source-span. If leading trivia characters have been skipped then the new source-spans may be
* incorrectly offset.
*
* @param details
* Additional information (such as identifier names) that should be associated with the span.
*/
function ParseSourceSpan(start, end, fullStart, details) {
if (fullStart === void 0) { fullStart = start; }
if (details === void 0) { details = null; }
this.start = start;
this.end = end;
this.fullStart = fullStart;
this.details = details;
}
ParseSourceSpan.prototype.toString = function () {
return this.start.file.content.substring(this.start.offset, this.end.offset);
};
return ParseSourceSpan;
}());
exports.ParseSourceSpan = ParseSourceSpan;
var ParseErrorLevel;
(function (ParseErrorLevel) {
ParseErrorLevel[ParseErrorLevel["WARNING"] = 0] = "WARNING";
ParseErrorLevel[ParseErrorLevel["ERROR"] = 1] = "ERROR";
})(ParseErrorLevel = exports.ParseErrorLevel || (exports.ParseErrorLevel = {}));
var ParseError = /** @class */ (function () {
function ParseError(span, msg, level) {
if (level === void 0) { level = ParseErrorLevel.ERROR; }
this.span = span;
this.msg = msg;
this.level = level;
}
ParseError.prototype.contextualMessage = function () {
var ctx = this.span.start.getContext(100, 3);
return ctx ? this.msg + " (\"" + ctx.before + "[" + ParseErrorLevel[this.level] + " ->]" + ctx.after + "\")" :
this.msg;
};
ParseError.prototype.toString = function () {
var details = this.span.details ? ", " + this.span.details : '';
return this.contextualMessage() + ": " + this.span.start + details;
};
return ParseError;
}());
exports.ParseError = ParseError;
function typeSourceSpan(kind, type) {
var moduleUrl = compile_metadata_1.identifierModuleUrl(type);
var sourceFileName = moduleUrl != null ? "in " + kind + " " + compile_metadata_1.identifierName(type) + " in " + moduleUrl :
"in " + kind + " " + compile_metadata_1.identifierName(type);
var sourceFile = new ParseSourceFile('', sourceFileName);
return new ParseSourceSpan(new ParseLocation(sourceFile, -1, -1, -1), new ParseLocation(sourceFile, -1, -1, -1));
}
exports.typeSourceSpan = typeSourceSpan;
/**
* Generates Source Span object for a given R3 Type for JIT mode.
*
* @param kind Component or Directive.
* @param typeName name of the Component or Directive.
* @param sourceUrl reference to Component or Directive source.
* @returns instance of ParseSourceSpan that represent a given Component or Directive.
*/
function r3JitTypeSourceSpan(kind, typeName, sourceUrl) {
var sourceFileName = "in " + kind + " " + typeName + " in " + sourceUrl;
var sourceFile = new ParseSourceFile('', sourceFileName);
return new ParseSourceSpan(new ParseLocation(sourceFile, -1, -1, -1), new ParseLocation(sourceFile, -1, -1, -1));
}
exports.r3JitTypeSourceSpan = r3JitTypeSourceSpan;
});
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport * as chars from './chars';\nimport {CompileIdentifierMetadata, identifierModuleUrl, identifierName} from './compile_metadata';\n\nexport class ParseLocation {\n  constructor(\n      public file: ParseSourceFile, public offset: number, public line: number,\n      public col: number) {}\n\n  toString(): string {\n    return this.offset != null ? `${this.file.url}@${this.line}:${this.col}` : this.file.url;\n  }\n\n  moveBy(delta: number): ParseLocation {\n    const source = this.file.content;\n    const len = source.length;\n    let offset = this.offset;\n    let line = this.line;\n    let col = this.col;\n    while (offset > 0 && delta < 0) {\n      offset--;\n      delta++;\n      const ch = source.charCodeAt(offset);\n      if (ch == chars.$LF) {\n        line--;\n        const priorLine = source.substr(0, offset - 1).lastIndexOf(String.fromCharCode(chars.$LF));\n        col = priorLine > 0 ? offset - priorLine : offset;\n      } else {\n        col--;\n      }\n    }\n    while (offset < len && delta > 0) {\n      const ch = source.charCodeAt(offset);\n      offset++;\n      delta--;\n      if (ch == chars.$LF) {\n        line++;\n        col = 0;\n      } else {\n        col++;\n      }\n    }\n    return new ParseLocation(this.file, offset, line, col);\n  }\n\n  // Return the source around the location\n  // Up to `maxChars` or `maxLines` on each side of the location\n  getContext(maxChars: number, maxLines: number): {before: string, after: string}|null {\n    const content = this.file.content;\n    let startOffset = this.offset;\n\n    if (startOffset != null) {\n      if (startOffset > content.length - 1) {\n        startOffset = content.length - 1;\n      }\n      let endOffset = startOffset;\n      let ctxChars = 0;\n      let ctxLines = 0;\n\n      while (ctxChars < maxChars && startOffset > 0) {\n        startOffset--;\n        ctxChars++;\n        if (content[startOffset] == '\\n') {\n          if (++ctxLines == maxLines) {\n            break;\n          }\n        }\n      }\n\n      ctxChars = 0;\n      ctxLines = 0;\n      while (ctxChars < maxChars && endOffset < content.length - 1) {\n        endOffset++;\n        ctxChars++;\n        if (content[endOffset] == '\\n') {\n          if (++ctxLines == maxLines) {\n            break;\n          }\n        }\n      }\n\n      return {\n        before: content.substring(startOffset, this.offset),\n        after: content.substring(this.offset, endOffset + 1),\n      };\n    }\n\n    return null;\n  }\n}\n\nexport class ParseSourceFile {\n  constructor(public content: string, public url: string) {}\n}\n\nexport class ParseSourceSpan {\n  /**\n   * Create an object that holds information about spans of tokens/nodes captured during\n   * lexing/parsing of text.\n   *\n   * @param start\n   * The location of the start of the span (having skipped leading trivia).\n   * Skipping leading trivia makes source-spans more \"user friendly\", since things like HTML\n   * elements will appear to begin at the start of the opening tag, rather than at the start of any\n   * leading trivia, which could include newlines.\n   *\n   * @param end\n   * The location of the end of the span.\n   *\n   * @param fullStart\n   * The start of the token without skipping the leading trivia.\n   * This is used by tooling that splits tokens further, such as extracting Angular interpolations\n   * from text tokens. Such tooling creates new source-spans relative to the original token's\n   * source-span. If leading trivia characters have been skipped then the new source-spans may be\n   * incorrectly offset.\n   *\n   * @param details\n   * Additional information (such as identifier names) that should be associated with the span.\n   */\n  constructor(\n      public start: ParseLocation, public end: ParseLocation,\n      public fullStart: ParseLocation = start, public details: string|null = null) {}\n\n  toString(): string {\n    return this.start.file.content.substring(this.start.offset, this.end.offset);\n  }\n}\n\nexport enum ParseErrorLevel {\n  WARNING,\n  ERROR,\n}\n\nexport class ParseError {\n  constructor(\n      public span: ParseSourceSpan, public msg: string,\n      public level: ParseErrorLevel = ParseErrorLevel.ERROR) {}\n\n  contextualMessage(): string {\n    const ctx = this.span.start.getContext(100, 3);\n    return ctx ? `${this.msg} (\"${ctx.before}[${ParseErrorLevel[this.level]} ->]${ctx.after}\")` :\n                 this.msg;\n  }\n\n  toString(): string {\n    const details = this.span.details ? `, ${this.span.details}` : '';\n    return `${this.contextualMessage()}: ${this.span.start}${details}`;\n  }\n}\n\nexport function typeSourceSpan(kind: string, type: CompileIdentifierMetadata): ParseSourceSpan {\n  const moduleUrl = identifierModuleUrl(type);\n  const sourceFileName = moduleUrl != null ? `in ${kind} ${identifierName(type)} in ${moduleUrl}` :\n                                             `in ${kind} ${identifierName(type)}`;\n  const sourceFile = new ParseSourceFile('', sourceFileName);\n  return new ParseSourceSpan(\n      new ParseLocation(sourceFile, -1, -1, -1), new ParseLocation(sourceFile, -1, -1, -1));\n}\n\n/**\n * Generates Source Span object for a given R3 Type for JIT mode.\n *\n * @param kind Component or Directive.\n * @param typeName name of the Component or Directive.\n * @param sourceUrl reference to Component or Directive source.\n * @returns instance of ParseSourceSpan that represent a given Component or Directive.\n */\nexport function r3JitTypeSourceSpan(\n    kind: string, typeName: string, sourceUrl: string): ParseSourceSpan {\n  const sourceFileName = `in ${kind} ${typeName} in ${sourceUrl}`;\n  const sourceFile = new ParseSourceFile('', sourceFileName);\n  return new ParseSourceSpan(\n      new ParseLocation(sourceFile, -1, -1, -1), new ParseLocation(sourceFile, -1, -1, -1));\n}\n"]}