You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
146 lines
5.3 KiB
146 lines
5.3 KiB
'use strict';
|
|
|
|
const Mixin = require('../../utils/mixin');
|
|
const Tokenizer = require('../../tokenizer');
|
|
const PositionTrackingPreprocessorMixin = require('../position-tracking/preprocessor-mixin');
|
|
|
|
class LocationInfoTokenizerMixin extends Mixin {
|
|
constructor(tokenizer) {
|
|
super(tokenizer);
|
|
|
|
this.tokenizer = tokenizer;
|
|
this.posTracker = Mixin.install(tokenizer.preprocessor, PositionTrackingPreprocessorMixin);
|
|
this.currentAttrLocation = null;
|
|
this.ctLoc = null;
|
|
}
|
|
|
|
_getCurrentLocation() {
|
|
return {
|
|
startLine: this.posTracker.line,
|
|
startCol: this.posTracker.col,
|
|
startOffset: this.posTracker.offset,
|
|
endLine: -1,
|
|
endCol: -1,
|
|
endOffset: -1
|
|
};
|
|
}
|
|
|
|
_attachCurrentAttrLocationInfo() {
|
|
this.currentAttrLocation.endLine = this.posTracker.line;
|
|
this.currentAttrLocation.endCol = this.posTracker.col;
|
|
this.currentAttrLocation.endOffset = this.posTracker.offset;
|
|
|
|
const currentToken = this.tokenizer.currentToken;
|
|
const currentAttr = this.tokenizer.currentAttr;
|
|
|
|
if (!currentToken.location.attrs) {
|
|
currentToken.location.attrs = Object.create(null);
|
|
}
|
|
|
|
currentToken.location.attrs[currentAttr.name] = this.currentAttrLocation;
|
|
}
|
|
|
|
_getOverriddenMethods(mxn, orig) {
|
|
const methods = {
|
|
_createStartTagToken() {
|
|
orig._createStartTagToken.call(this);
|
|
this.currentToken.location = mxn.ctLoc;
|
|
},
|
|
|
|
_createEndTagToken() {
|
|
orig._createEndTagToken.call(this);
|
|
this.currentToken.location = mxn.ctLoc;
|
|
},
|
|
|
|
_createCommentToken() {
|
|
orig._createCommentToken.call(this);
|
|
this.currentToken.location = mxn.ctLoc;
|
|
},
|
|
|
|
_createDoctypeToken(initialName) {
|
|
orig._createDoctypeToken.call(this, initialName);
|
|
this.currentToken.location = mxn.ctLoc;
|
|
},
|
|
|
|
_createCharacterToken(type, ch) {
|
|
orig._createCharacterToken.call(this, type, ch);
|
|
this.currentCharacterToken.location = mxn.ctLoc;
|
|
},
|
|
|
|
_createEOFToken() {
|
|
orig._createEOFToken.call(this);
|
|
this.currentToken.location = mxn._getCurrentLocation();
|
|
},
|
|
|
|
_createAttr(attrNameFirstCh) {
|
|
orig._createAttr.call(this, attrNameFirstCh);
|
|
mxn.currentAttrLocation = mxn._getCurrentLocation();
|
|
},
|
|
|
|
_leaveAttrName(toState) {
|
|
orig._leaveAttrName.call(this, toState);
|
|
mxn._attachCurrentAttrLocationInfo();
|
|
},
|
|
|
|
_leaveAttrValue(toState) {
|
|
orig._leaveAttrValue.call(this, toState);
|
|
mxn._attachCurrentAttrLocationInfo();
|
|
},
|
|
|
|
_emitCurrentToken() {
|
|
const ctLoc = this.currentToken.location;
|
|
|
|
//NOTE: if we have pending character token make it's end location equal to the
|
|
//current token's start location.
|
|
if (this.currentCharacterToken) {
|
|
this.currentCharacterToken.location.endLine = ctLoc.startLine;
|
|
this.currentCharacterToken.location.endCol = ctLoc.startCol;
|
|
this.currentCharacterToken.location.endOffset = ctLoc.startOffset;
|
|
}
|
|
|
|
if (this.currentToken.type === Tokenizer.EOF_TOKEN) {
|
|
ctLoc.endLine = ctLoc.startLine;
|
|
ctLoc.endCol = ctLoc.startCol;
|
|
ctLoc.endOffset = ctLoc.startOffset;
|
|
} else {
|
|
ctLoc.endLine = mxn.posTracker.line;
|
|
ctLoc.endCol = mxn.posTracker.col + 1;
|
|
ctLoc.endOffset = mxn.posTracker.offset + 1;
|
|
}
|
|
|
|
orig._emitCurrentToken.call(this);
|
|
},
|
|
|
|
_emitCurrentCharacterToken() {
|
|
const ctLoc = this.currentCharacterToken && this.currentCharacterToken.location;
|
|
|
|
//NOTE: if we have character token and it's location wasn't set in the _emitCurrentToken(),
|
|
//then set it's location at the current preprocessor position.
|
|
//We don't need to increment preprocessor position, since character token
|
|
//emission is always forced by the start of the next character token here.
|
|
//So, we already have advanced position.
|
|
if (ctLoc && ctLoc.endOffset === -1) {
|
|
ctLoc.endLine = mxn.posTracker.line;
|
|
ctLoc.endCol = mxn.posTracker.col;
|
|
ctLoc.endOffset = mxn.posTracker.offset;
|
|
}
|
|
|
|
orig._emitCurrentCharacterToken.call(this);
|
|
}
|
|
};
|
|
|
|
//NOTE: patch initial states for each mode to obtain token start position
|
|
Object.keys(Tokenizer.MODE).forEach(modeName => {
|
|
const state = Tokenizer.MODE[modeName];
|
|
|
|
methods[state] = function(cp) {
|
|
mxn.ctLoc = mxn._getCurrentLocation();
|
|
orig[state].call(this, cp);
|
|
};
|
|
});
|
|
|
|
return methods;
|
|
}
|
|
}
|
|
|
|
module.exports = LocationInfoTokenizerMixin;
|