cerxes/babel
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Merge pull request #1900 from samccone/sjs/opt2

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rework findCommonStringDelimiter
This commit is contained in:
Sebastian McKenzie
2015-07-02 23:54:52 +02:00
parent 6450f5263e 74c59c94ce
commit c40215497d
1 changed files with 7 additions and 25 deletions
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32
src/babel/generation/index.js
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@@ -57,34 +57,16 @@ class CodeGenerator {
return format;
}
static findCommonStringDelimiter(code, tokens) {
var occurences = {
single: 0,
double: 0
};
var checked = 0;
for (var i = 0; i < tokens.length; i++) {
var token = tokens[i];
if (token.type.label !== "string") continue;
var raw = code.slice(token.start, token.end);
if (raw[0] === "'") {
occurences.single++;
} else {
occurences.double++;
}
checked++;
if (checked >= 3) break;
static findCommonStringDelimiter(code, tokens, occurences = {"'": 0, "\"": 0}) {
if (tokens.length === 0 || occurences["'"] + occurences["\""] >= 3) {
return occurences["'"] > occurences["\""] ? "single" : "double";
}
if (occurences.single > occurences.double) {
return "single";
} else {
return "double";
if (tokens[0].type.label === "string") {
occurences[code[tokens[0].start]]++;
}
return this.findCommonStringDelimiter(code, tokens.slice(1), occurences);
}
static generators = {