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Update js tester tool
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@GuillaumeGomez
GuillaumeGomez committed May 12, 2018
1 parent 4b14573 commit e2db0a5
Showing 1 changed file with 122 additions and 47 deletions.
169 changes: 122 additions & 47 deletions src/tools/rustdoc-js/tester.js
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Expand Up @@ -12,73 +12,148 @@ const fs = require('fs');

const TEST_FOLDER = 'src/test/rustdoc-js/';

function getNextStep(content, pos, stop) {
while (pos < content.length && content[pos] !== stop &&
(content[pos] === ' ' || content[pos] === '\t' || content[pos] === '\n')) {
pos += 1;
}
if (pos >= content.length) {
return null;
}
if (content[pos] !== stop) {
return pos * -1;
}
return pos;
}

// Stupid function extractor based on indent.
function extractFunction(content, functionName) {
var x = content.split('\n');
var in_func = false;
var indent = 0;
var lines = [];

for (var i = 0; i < x.length; ++i) {
if (in_func === false) {
var splitter = "function " + functionName + "(";
if (x[i].trim().startsWith(splitter)) {
in_func = true;
indent = x[i].split(splitter)[0].length;
lines.push(x[i]);
}
} else {
lines.push(x[i]);
if (x[i].trim() === "}" && x[i].split("}")[0].length === indent) {
return lines.join("\n");
var splitter = "function " + functionName + "(";

while (true) {
var start = content.indexOf(splitter);
if (start === -1) {
break;
}
var pos = start;
while (pos < content.length && content[pos] !== ')') {
pos += 1;
}
if (pos >= content.length) {
break;
}
pos = getNextStep(content, pos + 1, '{');
if (pos === null) {
break;
} else if (pos < 0) {
content = content.slice(-pos);
continue;
}
while (pos < content.length) {
if (content[pos] === '"' || content[pos] === "'") {
var stop = content[pos];
var is_escaped = false;
do {
if (content[pos] === '\\') {
pos += 2;
} else {
pos += 1;
}
} while (pos < content.length &&
(content[pos] !== stop || content[pos - 1] === '\\'));
} else if (content[pos] === '{') {
indent += 1;
} else if (content[pos] === '}') {
indent -= 1;
if (indent === 0) {
return content.slice(start, pos + 1);
}
}
pos += 1;
}
content = content.slice(start + 1);
}
return null;
}

// Stupid function extractor for array.
function extractArrayVariable(content, arrayName) {
var x = content.split('\n');
var found_var = false;
var lines = [];

for (var i = 0; i < x.length; ++i) {
if (found_var === false) {
var splitter = "var " + arrayName + " = [";
if (x[i].trim().startsWith(splitter)) {
found_var = true;
i -= 1;
}
} else {
lines.push(x[i]);
if (x[i].endsWith('];')) {
return lines.join("\n");
var splitter = "var " + arrayName;
while (true) {
var start = content.indexOf(splitter);
if (start === -1) {
break;
}
var pos = getNextStep(content, start, '=');
if (pos === null) {
break;
} else if (pos < 0) {
content = content.slice(-pos);
continue;
}
pos = getNextStep(content, pos, '[');
if (pos === null) {
break;
} else if (pos < 0) {
content = content.slice(-pos);
continue;
}
while (pos < content.length) {
if (content[pos] === '"' || content[pos] === "'") {
var stop = content[pos];
do {
if (content[pos] === '\\') {
pos += 2;
} else {
pos += 1;
}
} while (pos < content.length &&
(content[pos] !== stop || content[pos - 1] === '\\'));
} else if (content[pos] === ']' &&
pos + 1 < content.length &&
content[pos + 1] === ';') {
return content.slice(start, pos + 2);
}
pos += 1;
}
content = content.slice(start + 1);
}
return null;
}

// Stupid function extractor for variable.
function extractVariable(content, varName) {
var x = content.split('\n');
var found_var = false;
var lines = [];

for (var i = 0; i < x.length; ++i) {
if (found_var === false) {
var splitter = "var " + varName + " = ";
if (x[i].trim().startsWith(splitter)) {
found_var = true;
i -= 1;
}
} else {
lines.push(x[i]);
if (x[i].endsWith(';')) {
return lines.join("\n");
var splitter = "var " + varName;
while (true) {
var start = content.indexOf(splitter);
if (start === -1) {
break;
}
var pos = getNextStep(content, start, '=');
if (pos === null) {
break;
} else if (pos < 0) {
content = content.slice(-pos);
continue;
}
while (pos < content.length) {
if (content[pos] === '"' || content[pos] === "'") {
var stop = content[pos];
do {
if (content[pos] === '\\') {
pos += 2;
} else {
pos += 1;
}
} while (pos < content.length &&
(content[pos] !== stop || content[pos - 1] === '\\'));
} else if (content[pos] === ';') {
return content.slice(start, pos + 1);
}
pos += 1;
}
content = content.slice(start + 1);
}
return null;
}
Expand All @@ -101,7 +176,7 @@ function loadThings(thingsToLoad, kindOfLoad, funcToCall, fileContent) {
for (var i = 0; i < thingsToLoad.length; ++i) {
var tmp = funcToCall(fileContent, thingsToLoad[i]);
if (tmp === null) {
console.error('enable to find ' + kindOfLoad + ' "' + thingsToLoad[i] + '"');
console.error('unable to find ' + kindOfLoad + ' "' + thingsToLoad[i] + '"');
process.exit(1);
}
content += tmp;
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