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perf(parser): optimize v8 perf deoptimizations (#61)

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This commit is contained in:
Nikolay Kostyurin
2020-04-05 15:08:59 +02:00
committed by GitHub
parent e3727dc5f5
commit 97ecba0af6
3 changed files with 93 additions and 14 deletions
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packages/bbob-parser/src/Token.js
+60 -9
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@@ -17,19 +17,70 @@ const TOKEN_TYPE_ATTR_VALUE = 'attr-value';
const TOKEN_TYPE_SPACE = 'space';
const TOKEN_TYPE_NEW_LINE = 'new-line';
const getTokenValue = (token) => token[TOKEN_VALUE_ID];
const getTokenLine = (token) => token[TOKEN_LINE_ID];
const getTokenColumn = (token) => token[TOKEN_COLUMN_ID];
/**
* @param {Token} token
* @returns {string}
*/
const getTokenValue = (token) => {
if (token && typeof token[TOKEN_VALUE_ID] !== 'undefined') {
return token[TOKEN_VALUE_ID];
}
const isTextToken = (token) => token[TOKEN_TYPE_ID] === TOKEN_TYPE_SPACE
|| token[TOKEN_TYPE_ID] === TOKEN_TYPE_NEW_LINE
|| token[TOKEN_TYPE_ID] === TOKEN_TYPE_WORD;
return '';
};
/**
* @param {Token}token
* @returns {number}
*/
const getTokenLine = (token) => (token && token[TOKEN_LINE_ID]) || 0;
const getTokenColumn = (token) => (token && token[TOKEN_COLUMN_ID]) || 0;
const isTagToken = (token) => token[TOKEN_TYPE_ID] === TOKEN_TYPE_TAG;
/**
* @param {Token} token
* @returns {boolean}
*/
const isTextToken = (token) => {
if (token && typeof token[TOKEN_TYPE_ID] !== 'undefined') {
return token[TOKEN_TYPE_ID] === TOKEN_TYPE_SPACE
|| token[TOKEN_TYPE_ID] === TOKEN_TYPE_NEW_LINE
|| token[TOKEN_TYPE_ID] === TOKEN_TYPE_WORD;
}
return false;
};
/**
* @param {Token} token
* @returns {boolean}
*/
const isTagToken = (token) => {
if (token && typeof token[TOKEN_TYPE_ID] !== 'undefined') {
return token[TOKEN_TYPE_ID] === TOKEN_TYPE_TAG;
}
return false;
};
const isTagEnd = (token) => getTokenValue(token).charCodeAt(0) === SLASH.charCodeAt(0);
const isTagStart = (token) => !isTagEnd(token);
const isAttrNameToken = (token) => token[TOKEN_TYPE_ID] === TOKEN_TYPE_ATTR_NAME;
const isAttrValueToken = (token) => token[TOKEN_TYPE_ID] === TOKEN_TYPE_ATTR_VALUE;
const isAttrNameToken = (token) => {
if (token && typeof token[TOKEN_TYPE_ID] !== 'undefined') {
return token[TOKEN_TYPE_ID] === TOKEN_TYPE_ATTR_NAME;
}
return false;
};
/**
* @param {Token} token
* @returns {boolean}
*/
const isAttrValueToken = (token) => {
if (token && typeof token[TOKEN_TYPE_ID] !== 'undefined') {
return token[TOKEN_TYPE_ID] === TOKEN_TYPE_ATTR_VALUE;
}
return false;
};
const getTagName = (token) => {
const value = getTokenValue(token);