angular-cn/docs/dgeni-package/services/tsParser/getContent.js

49 lines
1.6 KiB
JavaScript

var ts = require('typescript');
var LEADING_STAR = /^[^\S\r\n]*\*[^\S\n\r]?/gm;
module.exports = function getContent() {
return function(symbol) {
var content = "";
if (!symbol.declarations) return content;
symbol.declarations.forEach(function(declaration) {
// If this is left side of dotted module declaration, there is no doc comment associated with this declaration
if (declaration.kind === ts.SyntaxKind.ModuleDeclaration && declaration.body.kind === ts.SyntaxKind.ModuleDeclaration) {
return content;
}
// If this is dotted module name, get the doc comments from the parent
while (declaration.kind === ts.SyntaxKind.ModuleDeclaration && declaration.parent.kind === ts.SyntaxKind.ModuleDeclaration) {
declaration = declaration.parent;
}
// If this is a variable declaration then we get the doc comments from the grand parent
if (declaration.kind === ts.SyntaxKind.VariableDeclaration) {
declaration = declaration.parent.parent;
}
// Get the source file of this declaration
var sourceFile = ts.getSourceFileOfNode(declaration);
var commentRanges = ts.getJsDocComments(declaration, sourceFile);
if (commentRanges) {
commentRanges.forEach(function(commentRange) {
content += sourceFile.text
.substring(commentRange.pos+ '/**'.length, commentRange.end - '*/'.length)
.replace(LEADING_STAR, '')
.trim();
if (commentRange.hasTrailingNewLine) {
content += '\n';
}
});
}
content += '\n';
});
return content;
};
};