Mercurial Hosting > luan
changeset 694:b620b8e1010f
remove Luan.load() allow_expression param and add Luan.eval()
author | Franklin Schmidt <fschmidt@gmail.com> |
---|---|
date | Wed, 20 Apr 2016 20:56:08 -0600 |
parents | ca169567ce07 |
children | 5042e487d717 |
files | core/src/luan/Luan.java core/src/luan/LuanState.java core/src/luan/impl/LuanCompiler.java core/src/luan/impl/LuanParser.java core/src/luan/impl/ParseException.java core/src/luan/impl/Parser.java core/src/luan/modules/BasicLuan.java core/src/luan/modules/Io.luan core/src/luan/modules/Luan.luan core/src/luan/modules/PackageLuan.java core/src/luan/modules/RpcLuan.java http/src/luan/modules/http/Shell_mod.luan |
diffstat | 12 files changed, 66 insertions(+), 43 deletions(-) [+] |
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diff -r ca169567ce07 -r b620b8e1010f core/src/luan/Luan.java --- a/core/src/luan/Luan.java Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/Luan.java Wed Apr 20 20:56:08 2016 -0600 @@ -2,6 +2,7 @@ import java.util.List; import luan.modules.BasicLuan; +import luan.impl.LuanCompiler; public final class Luan { @@ -139,6 +140,17 @@ return checkFunction(f); } + public static LuanFunction load(String text,String sourceName,LuanTable env) + throws LuanException + { + return LuanCompiler.compile(text,sourceName,env); + } + + public static LuanFunction load(String text,String sourceName) + throws LuanException + { + return load(text,sourceName,null); + } private Luan() {} // never
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/LuanState.java --- a/core/src/luan/LuanState.java Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/LuanState.java Wed Apr 20 20:56:08 2016 -0600 @@ -52,7 +52,7 @@ } onClose.clear(); } - +/* public final Object eval(String cmd) throws LuanException { return eval(cmd,new LuanTable()); } @@ -61,7 +61,7 @@ LuanFunction fn = BasicLuan.load(this,cmd,"eval",env,true); return fn.call(this); } - +*/ public String toString(Object obj) throws LuanException { if( obj instanceof LuanTable ) {
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/impl/LuanCompiler.java --- a/core/src/luan/impl/LuanCompiler.java Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/impl/LuanCompiler.java Wed Apr 20 20:56:08 2016 -0600 @@ -14,12 +14,18 @@ public final class LuanCompiler { private LuanCompiler() {} // never - public static LuanFunction compile(String sourceName,String sourceText,LuanTable env,boolean allowExpr) throws LuanException { - LuanParser parser = new LuanParser(sourceName,sourceText); + public static LuanFunction compile(String sourceText,String sourceName,LuanTable env) throws LuanException { + LuanParser parser = new LuanParser(sourceText,sourceName); parser.addVar( "java" ); parser.addVar( "require" ); if( env != null ) parser.addVar( "_ENV" ); - Class fnClass = parse(parser,allowExpr); + Class fnClass; + try { + fnClass = parser.RequiredModule(); + } catch(ParseException e) { +//e.printStackTrace(); + throw new LuanException( e.getFancyMessage() ); + } LuanJava java; if( env == null ) { java = new LuanJava(); @@ -48,20 +54,6 @@ return closure; } - private static Class parse(LuanParser parser,boolean allowExpr) throws LuanException { - try { - if( allowExpr ) { - Class fnClass = parser.Expression(); - if( fnClass != null ) - return fnClass; - } - return parser.RequiredModule(); - } catch(ParseException e) { -//e.printStackTrace(); - throw new LuanException( e.getFancyMessage() ); - } - } - public static String toJava(String sourceName,String sourceText) throws LuanException { LuanParser parser = new LuanParser(sourceName,sourceText); parser.addVar( "java" );
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/impl/LuanParser.java --- a/core/src/luan/impl/LuanParser.java Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/impl/LuanParser.java Wed Apr 20 20:56:08 2016 -0600 @@ -187,9 +187,9 @@ private final Parser parser; private final Stmts top; - LuanParser(String sourceName,String sourceText) { + LuanParser(String sourceText,String sourceName) { this.frame = new Frame(); - this.parser = new Parser(sourceName,sourceText); + this.parser = new Parser(sourceText,sourceName); this.top = new Stmts(); } @@ -247,7 +247,7 @@ private Expr newFnExp(Stmts stmt,String name) { return toFnExp( stmt, frame.upValueSymbols, name ); } - +/* Class Expression() throws ParseException { Spaces(); parser.begin(); @@ -261,7 +261,7 @@ } return parser.failure(null); } - +*/ Class RequiredModule() throws ParseException { GetRequiredModule(); return newFnClass(top);
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/impl/ParseException.java --- a/core/src/luan/impl/ParseException.java Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/impl/ParseException.java Wed Apr 20 20:56:08 2016 -0600 @@ -8,11 +8,11 @@ public final int iCurrent; public final int iHigh; - ParseException(String msg,String sourceName,String text,int iCurrent,int iHigh) { + ParseException(String msg,String text,String sourceName,int iCurrent,int iHigh) { super(msg); // this.src = src; + this.text = text; this.sourceName = sourceName; - this.text = text; this.iCurrent = iCurrent; this.iHigh = iHigh; //System.out.println("iCurrent = "+iCurrent);
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/impl/Parser.java --- a/core/src/luan/impl/Parser.java Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/impl/Parser.java Wed Apr 20 20:56:08 2016 -0600 @@ -9,17 +9,17 @@ } // private final LuanSource src; + public final String text; public final String sourceName; - public final String text; private final int len; private Frame[] stack = new Frame[256]; private int frame = 0; private int iHigh; - public Parser(String sourceName,String text) { + public Parser(String text,String sourceName) { // this.src = src; + this.text = text; this.sourceName = sourceName; - this.text = text; this.len = text.length(); stack[0] = new Frame(); } @@ -78,7 +78,7 @@ } public ParseException exception(String msg) { - return new ParseException(msg,sourceName,text,i(),iHigh); + return new ParseException(msg,text,sourceName,i(),iHigh); } public ParseException exception() {
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/modules/BasicLuan.java --- a/core/src/luan/modules/BasicLuan.java Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/modules/BasicLuan.java Wed Apr 20 20:56:08 2016 -0600 @@ -15,7 +15,6 @@ import luan.LuanException; import luan.LuanMethod; import luan.LuanMeta; -import luan.impl.LuanCompiler; public final class BasicLuan { @@ -24,12 +23,12 @@ return Luan.type(obj); } - public static LuanFunction load(LuanState luan,String text,String sourceName,LuanTable env,Boolean allowExpr) + public static LuanFunction load(String text,String sourceName,LuanTable env) throws LuanException { - if( allowExpr==null ) - allowExpr = false; - return LuanCompiler.compile(sourceName,text,env,allowExpr); + Utils.checkNotNull(text); + Utils.checkNotNull(sourceName,1); + return Luan.load(text,sourceName,env); } public static LuanFunction load_file(LuanState luan,String fileName) throws LuanException { @@ -41,7 +40,7 @@ String src = PackageLuan.read(luan,fileName); if( src == null ) throw new LuanException("file '"+fileName+"' not found" ); - return load(luan,src,fileName,null,false); + return load(src,fileName,null); } public static LuanFunction pairs(final LuanState luan,final LuanTable t) throws LuanException {
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/modules/Io.luan --- a/core/src/luan/modules/Io.luan Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/modules/Io.luan Wed Apr 20 20:56:08 2016 -0600 @@ -159,12 +159,20 @@ for line in console do try { function() - local fn = load(line,"stdin",env,true) + local fn + try { + function() + fn = load("return "..line,"stdin",env) + end + catch = function(e) + fn = load(line,"stdin",env) + end + } M.print( fn() ) - end; + end catch = function(e) M.print(e) - end; + end } end end
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/modules/Luan.luan --- a/core/src/luan/modules/Luan.luan Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/modules/Luan.luan Wed Apr 20 20:56:08 2016 -0600 @@ -43,4 +43,8 @@ return v or M.error(message or "assertion failed!") end +function M.eval(s,source_name) + return M.load( "return "..s, source_name or "eval" )() +end + return M
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/modules/PackageLuan.java --- a/core/src/luan/modules/PackageLuan.java Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/modules/PackageLuan.java Wed Apr 20 20:56:08 2016 -0600 @@ -48,7 +48,7 @@ String src = read(luan,modName); if( src == null ) return null; - LuanFunction loader = BasicLuan.load(luan,src,modName,null,false); + LuanFunction loader = Luan.load(src,modName); mod = Luan.first( loader.call(luan,new Object[]{modName}) );
diff -r ca169567ce07 -r b620b8e1010f core/src/luan/modules/RpcLuan.java --- a/core/src/luan/modules/RpcLuan.java Tue Apr 19 15:54:11 2016 -0600 +++ b/core/src/luan/modules/RpcLuan.java Wed Apr 20 20:56:08 2016 -0600 @@ -139,7 +139,7 @@ return readBinary(in,readInt(in)); case TABLE: String s = readString(in); - LuanFunction fn = BasicLuan.load(luan,s,"rpc-reader",null,true); + LuanFunction fn = Luan.load("return "+s,"rpc-reader"); return fn.call(luan); default: throw new LuanException( "invalid type: " + type );
diff -r ca169567ce07 -r b620b8e1010f http/src/luan/modules/http/Shell_mod.luan --- a/http/src/luan/modules/http/Shell_mod.luan Tue Apr 19 15:54:11 2016 -0600 +++ b/http/src/luan/modules/http/Shell_mod.luan Wed Apr 20 20:56:08 2016 -0600 @@ -30,13 +30,21 @@ print( "% "..cmd ) try { function() - local line = load(cmd,"<web_shell>",M.env,true) + local line + try { + function() + line = load("return "..cmd,"<web_shell>",M.env) + end + catch = function(e) + line = load(cmd,"<web_shell>",M.env) + end + } print( line() ) - end; + end catch = function(e) Io.print_to(Io.stderr,e) print(e) - end; + end } end end