X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fxwt%2Fjs%2FByteCodes.java;h=2e39d6f1846a5cfbdf0fee3c4dc0e820e8e74967;hb=bb38b8569de61718a7be9f728eabdf2c7c240c42;hp=1c73e9fc728d66896d7ccbeaaa5079239c29265b;hpb=ec3ce7739bc84c0641fc57efc8da9af89372013f;p=org.ibex.core.git diff --git a/src/org/xwt/js/ByteCodes.java b/src/org/xwt/js/ByteCodes.java index 1c73e9f..2e39d6f 100644 --- a/src/org/xwt/js/ByteCodes.java +++ b/src/org/xwt/js/ByteCodes.java @@ -21,13 +21,16 @@ interface ByteCodes { /** create a new instance; literal is a reference to the corresponding ForthBlock */ public static final byte NEWFUNCTION = -5; - /** pop a string off the stack and declare it in the current scope */ + /** if given a non-null argument declare its argument in the current scope and push + it to the stack, else, declares the element on the top of the stack and leaves it + there */ public static final byte DECLARE = -6; /** push a reference to the current scope onto the stack */ public static final byte TOPSCOPE = -7; - /** pop two elements off the stack; push stack[-1].get(stack[top]) */ + /** if given a null literal pop two elements off the stack; push stack[-1].get(stack[top]) + else pop one element off the stack, push stack[top].get(literal) */ public static final byte GET = -8; /** push stack[-1].get(stack[top]) */ @@ -48,10 +51,10 @@ interface ByteCodes { /** discard the top stack element */ static public final byte POP = -14; - /** pop two elements; call stack[-1](stack[top]) where stacktop is a JS.Array */ + /** pop two elements; call stack[-1](stack[top]) where stacktop is a JS.JS.Array */ public static final byte CALL = -15; - /** pop an element; push a JS.Array containing the keys of the popped element */ + /** pop an element; push a JS.JS.Array containing the keys of the popped element */ public static final byte PUSHKEYS = -16; /** swap the top two elements on the stack */ @@ -71,6 +74,19 @@ interface ByteCodes { /** execute the ForthBlock pointed to by the literal until BREAK encountered; push TRUE onto the stack for the first iteration * and FALSE for all subsequent iterations */ - public static final byte LOOP = -22; - + public static final byte LOOP = -22; + + /** pop three elements off the stack; method arguments, method name, and an object to call the method on, then calls the method + Has a similar effect a a GET followed by a CALL */ + public static final byte CALLMETHOD = -23; + + /** finish a finally block and carry out whatever instruction initiated the finally block */ + public static final byte FINALLY_DONE = -24; + + public static final String[] bytecodeToString = new String[] { + "", "", "LITERAL", "ARRAY", "OBJECT", "NEWFUNCTION", "DECLARE", "TOPSCOPE", + "GET", "GET_PRESERVE", "PUT", "JT", "JF", "JMP", "POP", "CALL", "PUSHKEYS", + "SWAP", "NEWSCOPE", "OLDSCOPE", "DUP", "LABEL", "LOOP", "CALLMETHOD", + "FINALLY_DONE" + }; }