source-map: Introduce helper for generate a parse rule function name

peggyjs · Jul 25, 2021 · d2fabaf · d2fabaf
1 parent 1aabf07
commit d2fabaf
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/lib/compiler/passes/generate-js.js b/lib/compiler/passes/generate-js.js
@@ -134,6 +134,9 @@ function generateJS(ast, options) {
   function e(i) { return "peg$e" + i; } // |expectations[i]| of the abstract machine
   function f(i) { return "peg$f" + i; } // |actions[i]| of the abstract machine
 
+  /** Generates name of the function that parses specified rule. */
+  function name(name) { return "peg$parse" + name; }
+
   function generateTables() {
     function buildLiteral(literal) {
       return "\"" + stringEscape(literal) + "\"";
@@ -551,7 +554,7 @@ function generateJS(ast, options) {
             break;
 
           case op.RULE:               // RULE r
-            parts.push(stack.push("peg$parse" + ast.rules[bc[ip + 1]].name + "()"));
+            parts.push(stack.push(name(ast.rules[bc[ip + 1]].name) + "()"));
             ip += 2;
             break;
 
@@ -575,7 +578,7 @@ function generateJS(ast, options) {
 
     const code = compile(rule.bytecode);
 
-    parts.push("function peg$parse" + rule.name + "() {");
+    parts.push("function " + name(rule.name) + "() {");
 
     if (options.trace) {
       parts.push("  var startPos = peg$currPos;");
@@ -840,10 +843,10 @@ function generateJS(ast, options) {
 
     const startRuleFunctions = "{ "
       + options.allowedStartRules.map(
-        r => r + ": peg$parse" + r
+        r => r + ": " + name(r)
       ).join(", ")
       + " }";
-    const startRuleFunction = "peg$parse" + options.allowedStartRules[0];
+    const startRuleFunction = name(options.allowedStartRules[0]);
 
     parts.push(
       "function peg$parse(input, options) {",