Emit opening and closing positions for instructions

5 files changed, 13 insertions, 13 deletions

diff --git a/docs/bqn.js b/docs/bqn.js
index 22d4223a..852836b8 100644
--- a/docs/bqn.js
+++ b/docs/bqn.js
@@ -27,7 +27,7 @@ let chkR = v => { if (v===null) throw Error("Runtime: Variable referenced before
 let genjs = (B, p, L) => { // Bytecode -> Javascript compiler
   let rD = 0;
   let r = L?"let l=0;try{":"";
-  let fin = L?"}catch(e){e.message=[l,e.message];e.message.loc=true;e.message.sh=[2];throw e;}":"";
+  let fin = L?"}catch(e){let s=L.map(p=>p[l]);s.sh=[1,2];let m=[s,e.message];m.loc=true;m.sh=[2];e.message=m;throw e;}":"";
   let szM = 1;
   let rV = n => { szM=Math.max(szM,n+1); return 'v'+n; };
   let rP = val => rV(rD++) + "="+val+";";
@@ -42,7 +42,7 @@ let genjs = (B, p, L) => { // Bytecode -> Javascript compiler
   let ge = n => "e"+".p".repeat(n);
   loop: while(true) { r+="\n";
     if (p>B.length) throw Error("Internal compiler error: Unclosed function");
-    if (L) r+="l="+L[p]+";";
+    if (L) r+="l="+p+";";
     switch(B[p++]) {
       case 0:          { r+= rP("O["+num()+"]");                                                                                           break; }
       case 3: case  4: { let n=num(); rD-= n;      r+=rP("list(["+(new Array(n).fill().map((_,i)=>rV(rD+i)).join(","))+"])");              break; }
@@ -75,8 +75,8 @@ let run = (B,O,S,L) => { // Bytecode, Objects, Sections/blocks
     if (type===0) c = "let e2=def;"+c;
     if (type===1) c = "const mod=(f  ) => {let e2=[...def]; e2["+I+"]=mod;e2["+(I+1)+"]=f;"                +c+"}; mod.m=1;return mod;";
     if (type===2) c = "const mod=(f,g) => {let e2=[...def]; e2["+I+"]=mod;e2["+(I+1)+"]=f;e2["+(I+2)+"]=g;"+c+"}; mod.m=2;return mod;";
-    return Function("'use strict'; return (chkM,chkR,has,call,get,set,list,O,def) => D => oe => {"+c+"};")()
-                                          (chkM,chkR,has,call,get,set,list,O,def);
+    return Function("'use strict'; return (chkM,chkR,has,call,get,set,list,O,L,def) => D => oe => {"+c+"};")()
+                                          (chkM,chkR,has,call,get,set,list,O,L,def);
   });
   D.forEach((d,i) => {D[i]=d(D)});
   return D[0]([]);
@@ -178,9 +178,9 @@ let runtime = run(
 // Compiler
 runtime[42] = assertFn("Compiler");
 let compile = run(
-  new 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+  new 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  ,[runtime[0],runtime[1],runtime[2],runtime[3],runtime[4],runtime[6],runtime[7],runtime[8],runtime[9],runtime[10],runtime[11],runtime[12],runtime[13],runtime[14],runtime[15],runtime[16],runtime[17],runtime[19],runtime[20],runtime[21],runtime[22],runtime[23],runtime[24],runtime[25],runtime[26],runtime[27],runtime[28],runtime[29],runtime[30],runtime[31],runtime[32],runtime[33],runtime[35],runtime[36],runtime[37],runtime[38],runtime[39],runtime[40],runtime[41],runtime[42],runtime[43],runtime[44],runtime[45],runtime[46],runtime[47],runtime[48],runtime[49],runtime[50],runtime[51],runtime[52],runtime[53],runtime[54],runtime[55],runtime[56],runtime[58],runtime[59],runtime[61],10,-1,26,9,1,0,2,3,-3,-2,5,17,3.141592653589793,Infinity,4,-4,-10,21,14,15,11,16,7,25,128,'
- ,[[0,1,0,33],[1,0,466,5],[1,1,485,5],[0,0,609,44],[0,0,2126,22],[0,0,2928,111],[0,0,7356,9],[0,0,7475,13],[0,0,7597,3],[0,0,7605,3],[0,0,7645,3],[0,0,7664,3],[0,0,7687,3],[2,1,7711,3],[0,0,7747,6],[2,1,7884,3],[0,0,7953,3],[0,0,8003,3],[0,0,8025,3],[0,0,8055,3],[0,0,8113,3],[0,0,8176,4],[0,0,8229,4],[0,0,8315,3],[2,1,8340,3]]
+ ,[[0,1,0,33],[1,0,466,5],[1,1,485,5],[0,0,609,44],[0,0,2126,22],[0,0,2928,112],[0,0,7441,9],[0,0,7560,13],[0,0,7682,3],[0,0,7690,3],[0,0,7730,3],[0,0,7749,3],[0,0,7772,3],[2,1,7796,3],[0,0,7832,6],[2,1,7969,3],[0,0,8038,3],[0,0,8088,3],[0,0,8110,3],[0,0,8140,3],[0,0,8198,3],[0,0,8261,4],[0,0,8314,4],[0,0,8400,3],[2,1,8425,3]]
 );
 runtime[42] = assertFn("!");
 runtime.map((r,i) => {
diff --git a/docs/repl.js b/docs/repl.js
index 964f7fa3..4ac4d268 100644
--- a/docs/repl.js
+++ b/docs/repl.js
@@ -47,9 +47,9 @@ let exp=0, explain;
 if (doc.doexplain) doc.doexplain.onclick = () => {
   if (explain===undefined) {
     let drawEval = run(
-      new 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+      new 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      ,[runtime[0],runtime[1],runtime[2],runtime[3],runtime[4],runtime[6],runtime[7],runtime[8],runtime[9],runtime[10],runtime[11],runtime[12],runtime[13],runtime[14],runtime[15],runtime[16],runtime[18],runtime[19],runtime[20],runtime[21],runtime[22],runtime[23],runtime[24],runtime[25],runtime[26],runtime[27],runtime[29],runtime[30],runtime[31],runtime[32],runtime[33],runtime[35],runtime[36],runtime[37],runtime[38],runtime[39],runtime[40],runtime[41],runtime[42],runtime[43],runtime[44],runtime[45],runtime[46],runtime[47],runtime[48],runtime[49],runtime[50],runtime[51],runtime[52],runtime[53],runtime[54],runtime[55],runtime[56],runtime[57],runtime[58],runtime[59],runtime[61],1,2,3,0,-Infinity,Infinity,10,0.5,10.84,24,-1,128,-1.25,0.1,512,' ','0','=','|','\"','
-     ,[[0,1,0,31],[0,0,517,4],[0,0,604,8],[0,0,724,3],[0,0,737,10],[0,0,988,3],[0,0,998,3],[0,0,1008,3],[0,0,1024,4],[0,0,1075,3],[1,1,1100,2],[0,0,1130,3],[0,0,1144,32],[0,0,2060,3],[1,0,2103,5],[0,0,2115,3],[0,0,2154,4],[0,0,2244,4],[1,1,2345,2],[0,1,2375,4],[0,0,2565,22],[0,0,3097,5],[0,0,3179,3],[0,0,3230,3]]
+     ,[[0,1,0,31],[0,0,517,4],[0,0,604,8],[0,0,724,3],[0,0,737,10],[0,0,988,3],[0,0,998,3],[0,0,1008,3],[0,0,1024,4],[0,0,1075,3],[1,1,1100,2],[0,0,1130,3],[0,0,1144,33],[0,0,2065,3],[1,0,2108,5],[0,0,2120,3],[0,0,2159,4],[0,0,2249,4],[1,1,2350,2],[0,1,2380,4],[0,0,2570,22],[0,0,3102,5],[0,0,3184,3],[0,0,3235,3]]
     );
     explain = (s,c) => {
       doc.explain.innerHTML = s?drawEval(s,c).map(l=>l.join("")).join("\n"):'';
diff --git a/docs/try.html b/docs/try.html
index 0debb497..13870403 100644
--- a/docs/try.html
+++ b/docs/try.html
@@ -32,7 +32,6 @@
     <ul>
       <li>You can type special characters with a back<em>slash</em> prefix, as shown by hovering over the character bar above. Documentation links for primitives are <a href="doc/primitive.html">here</a>.</li>
       <li>Any modifier with enter will execute (not just shift).</li>
-      <li>For errors in dyadic functions or modifiers, the caret indicating position will point to the left argument or operand, not the function itself.</li>
       <li>Support for function headers and multiple bodies is missing, and Under (<code class="Modifier2">⌾</code>) only works for a small class of structural functions. Fill elements aren't tracked: instead 0 is always used. Performance is bad.</li>
     </ul>
   </p>
diff --git a/src/c.bqn b/src/c.bqn
index a7dd7a7e..037debfd 100644
--- a/src/c.bqn
+++ b/src/c.bqn
@@ -190,8 +190,9 @@ Parse ← {r‿vn‿i‿e←𝕨⋄nv←≠vn
   or←⍋oi←idor∾g⊏˜∾⟨cn,cn,bk,bk,dr,2/l,af/at,oa+1⌈oa⊏os,(dy×⊏⟜os)⊸+fa+dy,rt⟩
   bc←or⊏∾idbc∾⟨0¨cn,ob,15¨bk,1+↕≠bk,14¨dr,⥊⍉(3+l⊏aa)≍ll
                11⌈(11-1+⊑bG)+(af/ai)⊏ma+𝕩,5+oa⊏r,(⊢+9×10⊸=)16+dy-7×fa⊏er,25¨rt⟩
+  oj←i(≠-1˙)⊸⌊oi(-⊸↓˜⟜≠∾⊢)g⊏˜∾⟨1-˜af/at,oa,fa,rt⟩
   bcl‿el‿ol←LEB bc∾25
-  ⟨bcl,u,⟨ft,¬fx,el/˜1∾or≥bc-○≠rt,lc+fsc⟩, ol/(¯1∾˜or⊏oi)⊏¯1(⊢∾⊏)i⟩
+  ⟨bcl,u,⟨ft,¬fx,el/˜1∾or≥bc-○≠rt,lc+fsc⟩, (ol/¯1∾˜or⊏oj)⊸⊏¨i‿e⟩
 }
 
 LEB←{
@@ -204,6 +205,6 @@ LEB←{
 
 Compile←{
   ⟨tok,role,val,t0,t1⟩←tx←Tokenize 𝕩
-  ⟨bc,prim,blk,indb⟩←⟨role,⊑val,t0,t1⟩ Parse tok
-  ⟨bc, ∾⟨prim⊏𝕨⟩∾1↓val, <˘⍉>blk, indb, tx⟩
+  ⟨bc,prim,blk,oi⟩←⟨role,⊑val,t0,t1⟩ Parse tok
+  ⟨bc, ∾⟨prim⊏𝕨⟩∾1↓val, <˘⍉>blk, oi, tx⟩
 }
diff --git a/src/e.bqn b/src/e.bqn
index 5144c902..c242ce9f 100644
--- a/src/e.bqn
+++ b/src/e.bqn
@@ -37,7 +37,7 @@ hlTag ← {"<tspan class='"∾𝕩∾"'>"}¨ hlcl
 escchars ← """&<>" ⋄ escapes ← ("&"∾∾⟜";")¨"quot"‿"amp"‿"lt"‿"gt"
 
 Explain ← {
-  b‿const‿blk‿i‿tok ← 𝕨
+  b‿const‿blk‿(i‿e)‿tok ← 𝕨
   ba‿bc‿bo‿bp ← '0'-˜⟨ # For each instruction, number of:
     "11111000000000010000022000"  # Arguments
     "000//232323223102303200121"  # Stack values consumed