diff options
Diffstat (limited to 'generic/tclCompCmds.c')
| -rw-r--r-- | generic/tclCompCmds.c | 55 |
1 files changed, 32 insertions, 23 deletions
diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c index 13f479d..61f7988 100644 --- a/generic/tclCompCmds.c +++ b/generic/tclCompCmds.c @@ -854,6 +854,19 @@ CompileDictEachCmd( } /* + * Create temporary variable to capture return values from loop body when + * we're collecting results. + */ + + if (collect == TCL_EACH_COLLECT) { + collectVar = TclFindCompiledLocal(NULL, /*nameChars*/ 0, /*create*/ 1, + envPtr); + if (collectVar < 0) { + return TCL_ERROR; + } + } + + /* * Check we've got a pair of variables and that they are local variables. * Then extract their indices in the LVT. */ @@ -903,23 +916,21 @@ CompileDictEachCmd( } /* - * Create temporary variable to capture return values from loop body. + * Preparation complete; issue instructions. Note that this code issues + * fixed-sized jumps. That simplifies things a lot! + * + * First up, initialize the accumulator dictionary if needed. */ if (collect == TCL_EACH_COLLECT) { - collectVar = TclFindCompiledLocal(NULL, /*nameChars*/ 0, /*create*/ 1, - envPtr); - if (collectVar < 0) { - return TCL_ERROR; - } + PushLiteral(envPtr, "", 0); + Emit14Inst( INST_STORE_SCALAR, collectVar, envPtr); + TclEmitOpcode( INST_POP, envPtr); } /* - * Preparation complete; issue instructions. Note that this code issues - * fixed-sized jumps. That simplifies things a lot! - * - * First up, get the dictionary and start the iteration. No catching of - * errors at this point. + * Get the dictionary and start the iteration. No catching of errors at + * this point. */ CompileWord(envPtr, dictTokenPtr, interp, 3); @@ -928,16 +939,6 @@ CompileDictEachCmd( TclEmitInstInt4( INST_JUMP_TRUE4, 0, envPtr); /* - * Initialize the accumulator dictionary, if needed. - */ - - if (collect == TCL_EACH_COLLECT) { - PushLiteral(envPtr, "", 0); - Emit14Inst( INST_STORE_SCALAR, collectVar, envPtr); - TclEmitOpcode( INST_POP, envPtr); - } - - /* * Now we catch errors from here on so that we can finalize the search * started by Tcl_DictObjFirst above. */ @@ -973,7 +974,7 @@ CompileDictEachCmd( Emit14Inst( INST_LOAD_SCALAR, keyVarIndex, envPtr); TclEmitInstInt4(INST_OVER, 1, envPtr); TclEmitInstInt4(INST_DICT_SET, 1, envPtr); - TclEmitInt4( collectVar, envPtr); + TclEmitInt4( collectVar, envPtr); TclEmitOpcode( INST_POP, envPtr); } TclEmitOpcode( INST_POP, envPtr); @@ -1024,6 +1025,10 @@ CompileDictEachCmd( TclEmitInstInt1( INST_UNSET_SCALAR, 0, envPtr); TclEmitInt4( infoIndex, envPtr); TclEmitOpcode( INST_END_CATCH, envPtr); + if (collect == TCL_EACH_COLLECT) { + TclEmitInstInt1(INST_UNSET_SCALAR, 0, envPtr); + TclEmitInt4( collectVar, envPtr); + } TclEmitOpcode( INST_RETURN_STK, envPtr); /* @@ -1039,7 +1044,7 @@ CompileDictEachCmd( TclEmitOpcode( INST_POP, envPtr); TclEmitOpcode( INST_POP, envPtr); TclEmitInstInt1( INST_UNSET_SCALAR, 0, envPtr); - TclEmitInt4( infoIndex, envPtr); + TclEmitInt4( infoIndex, envPtr); /* * Final stage of the command (normal case) is that we push an empty @@ -1052,6 +1057,8 @@ CompileDictEachCmd( envPtr->codeStart + endTargetOffset); if (collect == TCL_EACH_COLLECT) { Emit14Inst( INST_LOAD_SCALAR, collectVar, envPtr); + TclEmitInstInt1(INST_UNSET_SCALAR, 0, envPtr); + TclEmitInt4( collectVar, envPtr); } else { PushLiteral(envPtr, "", 0); } @@ -2279,6 +2286,8 @@ CompileEachloopCmd( envPtr->currStackDepth = savedStackDepth; if (collect == TCL_EACH_COLLECT) { Emit14Inst( INST_LOAD_SCALAR, collectVar, envPtr); + TclEmitInstInt1(INST_UNSET_SCALAR, 0, envPtr); + TclEmitInt4( collectVar, envPtr); } else { PushLiteral(envPtr, "", 0); } |