Martin Muñoz
151 lines
3.4 KiB
JavaScript
151 lines
3.4 KiB
JavaScript
import Visitor from "./visitor";
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export function print(ast) {
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return new PrintVisitor().accept(ast);
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}
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export function PrintVisitor() {
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this.padding = 0;
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}
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PrintVisitor.prototype = new Visitor();
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PrintVisitor.prototype.pad = function(string) {
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var out = "";
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for(var i=0,l=this.padding; i<l; i++) {
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out = out + " ";
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}
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out = out + string + "\n";
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return out;
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};
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PrintVisitor.prototype.program = function(program) {
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var out = "",
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statements = program.statements,
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i, l;
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if (program.blockParams) {
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var blockParams = "BLOCK PARAMS: [";
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for(i=0, l=program.blockParams.length; i<l; i++) {
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blockParams += " " + program.blockParams[i];
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}
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blockParams += " ]";
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out += this.pad(blockParams);
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}
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for(i=0, l=statements.length; i<l; i++) {
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out = out + this.accept(statements[i]);
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}
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this.padding--;
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return out;
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};
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PrintVisitor.prototype.block = function(block) {
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var out = "";
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out = out + this.pad("BLOCK:");
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this.padding++;
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out = out + this.pad(this.accept(block.sexpr));
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if (block.program) {
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out = out + this.pad("PROGRAM:");
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this.padding++;
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out = out + this.accept(block.program);
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this.padding--;
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}
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if (block.inverse) {
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if (block.program) { this.padding++; }
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out = out + this.pad("{{^}}");
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this.padding++;
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out = out + this.accept(block.inverse);
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this.padding--;
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if (block.program) { this.padding--; }
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}
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this.padding--;
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return out;
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};
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PrintVisitor.prototype.sexpr = function(sexpr) {
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var params = sexpr.params, paramStrings = [], hash;
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for(var i=0, l=params.length; i<l; i++) {
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paramStrings.push(this.accept(params[i]));
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}
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params = "[" + paramStrings.join(", ") + "]";
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hash = sexpr.hash ? " " + this.accept(sexpr.hash) : "";
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return this.accept(sexpr.id) + " " + params + hash;
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};
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PrintVisitor.prototype.mustache = function(mustache) {
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return this.pad("{{ " + this.accept(mustache.sexpr) + " }}");
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};
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PrintVisitor.prototype.partial = function(partial) {
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var content = this.accept(partial.partialName);
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if(partial.context) {
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content += " " + this.accept(partial.context);
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}
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if (partial.hash) {
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content += " " + this.accept(partial.hash);
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}
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return this.pad("{{> " + content + " }}");
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};
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PrintVisitor.prototype.hash = function(hash) {
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var pairs = hash.pairs;
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var joinedPairs = [], left, right;
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for(var i=0, l=pairs.length; i<l; i++) {
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left = pairs[i][0];
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right = this.accept(pairs[i][1]);
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joinedPairs.push( left + "=" + right );
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}
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return "HASH{" + joinedPairs.join(", ") + "}";
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};
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PrintVisitor.prototype.STRING = function(string) {
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return '"' + string.string + '"';
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};
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PrintVisitor.prototype.NUMBER = function(number) {
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return "NUMBER{" + number.number + "}";
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};
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PrintVisitor.prototype.BOOLEAN = function(bool) {
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return "BOOLEAN{" + bool.bool + "}";
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};
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PrintVisitor.prototype.ID = function(id) {
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var path = id.parts.join("/");
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if(id.parts.length > 1) {
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return "PATH:" + path;
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} else {
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return "ID:" + path;
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}
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};
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PrintVisitor.prototype.PARTIAL_NAME = function(partialName) {
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return "PARTIAL:" + partialName.name;
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};
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PrintVisitor.prototype.DATA = function(data) {
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return "@" + this.accept(data.id);
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};
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PrintVisitor.prototype.content = function(content) {
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return this.pad("CONTENT[ '" + content.string + "' ]");
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};
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PrintVisitor.prototype.comment = function(comment) {
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return this.pad("{{! '" + comment.comment + "' }}");
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};
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