[Subversion] / RuleDispatch / src / dispatch / assembler.txt

Diff of /RuleDispatch/src/dispatch/assembler.txt

-version 2111, Mon Dec 19 07:32:17 2005 UTC
+version 2112, Thu Dec 22 05:26:05 2005 UTC
  Line 228
  Line 228
  Line 228
      XXX Need tests for MAKE_CLOSURE/MAKE_FUNCTION
+ Labels and backpatching forward references:
+     >>> c = Code()
+     >>> ref = c.JUMP_ABSOLUTE()
+     >>> c.LOAD_CONST(1)
+     >>> ref()
+     >>> c.RETURN_VALUE()
+     >>> dis(c.code())
+          0 JUMP_ABSOLUTE            6
+LOAD_CONST               0 (1)
+             >>    6 RETURN_VALUE
+     >>> c = Code()
+     >>> ref = c.JUMP_FORWARD()
+     >>> c.LOAD_CONST(1)
+     >>> ref()
+     >>> c.RETURN_VALUE()
+     >>> dis(c.code())
+          0 JUMP_FORWARD             3 (to 6)
+LOAD_CONST               0 (1)
+             >>    6 RETURN_VALUE
+     >>> c = Code()
+     >>> lbl = c.label()
+     >>> c.LOAD_CONST(1)
+     >>> c.JUMP_IF_TRUE(lbl)
+     Traceback (most recent call last):
+       ...
+     AssertionError: Relative jumps can't go backwards
+     >>> c = Code()
+     >>> lbl = c.label()
+     >>> c.LOAD_CONST(1)
+     >>> ref = c.JUMP_ABSOLUTE(lbl)
+     >>> dis(c.code())
+    >>    0 LOAD_CONST               0 (1)
+JUMP_ABSOLUTE            0

-Generate output suitable for use with a patch program
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