shithub: libmujs

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Add enum-to-string functions for syntax tree and opcodes.

--- a/jscompile.h

+++ b/jscompile.h

@@ -113,7 +113,7 @@

 };

 js_Function *jsC_compile(js_State *J, js_Ast *prog);

-

+const char *jsC_opcodestring(int opcode);

 void jsC_dumpfunction(js_State *J, js_Function *fun);

 #endif

--- a/jsdump.c

+++ b/jsdump.c

@@ -5,6 +5,8 @@

 #include <assert.h>

+#define nelem(a) (sizeof (a) / sizeof (a)[0])

+

 static const char *astname[] = {

 	"list", "fundec", "ident", "number", "string", "regexp", "undef",

 	"null", "true", "false", "this", "fun", "array", "object", "prop_val",

@@ -24,6 +26,20 @@

 static const char *opname[] = {

 #include "opnames.h"

 };

+

+const char *jsP_aststring(js_AstType type)

+{

+	if (type < 0 || type > nelem(astname))

+		return "<unknown>";

+	return astname[type];

+}

+

+const char *jsC_opcodestring(int type)

+{

+	if (type < 0 || type > nelem(opname))

+		return "<unknown>";

+	return opname[type];

+}

 static inline void pc(int c)

 {

--- a/jsparse.h

+++ b/jsparse.h

@@ -128,6 +128,7 @@

 void jsP_optimize(js_State *J, js_Ast *prog);

 void jsP_freeparse(js_State *J);

+const char *jsP_aststring(js_AstType type);

 void jsP_dumpsyntax(js_State *J, js_Ast *prog);

 void jsP_dumplist(js_State *J, js_Ast *prog);

--- a/jsrun.c

+++ b/jsrun.c

@@ -808,7 +808,7 @@

 			return;

 		default:

-			js_error(J, "illegal instruction: %d (pc=%d)", opcode, (int)(pc - F->code - 1));

+			js_error(J, "illegal instruction: %s (pc=%d)", jsC_opcodestring(opcode), (int)(pc - F->code - 1));

 		}

 	}

 }