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authordkf <donal.k.fellows@manchester.ac.uk>2013-12-30 08:37:49 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2013-12-30 08:37:49 (GMT)
commit1749e8cdf33e8232f22acc08f9ce4301b00ba7eb (patch)
treea8680fa7474bcf0220ce6342a82e0a07e23ef8ff /generic
parent96f3f9a79df5d9ce6166a00452822684e177b743 (diff)
downloadtcl-1749e8cdf33e8232f22acc08f9ce4301b00ba7eb.zip
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implement [namespace origin] in bytecode
Diffstat (limited to 'generic')
-rw-r--r--generic/tclAssembly.c1
-rw-r--r--generic/tclCompCmdsGR.c22
-rw-r--r--generic/tclCompile.c5
-rw-r--r--generic/tclCompile.h4
-rw-r--r--generic/tclExecute.c26
-rw-r--r--generic/tclInt.h3
-rw-r--r--generic/tclNamesp.c2
7 files changed, 59 insertions, 4 deletions
diff --git a/generic/tclAssembly.c b/generic/tclAssembly.c
index b7bd1cd..89c286a 100644
--- a/generic/tclAssembly.c
+++ b/generic/tclAssembly.c
@@ -437,6 +437,7 @@ static const TalInstDesc TalInstructionTable[] = {
{"nop", ASSEM_1BYTE, INST_NOP, 0, 0},
{"not", ASSEM_1BYTE, INST_LNOT, 1, 1},
{"nsupvar", ASSEM_LVT4, INST_NSUPVAR, 2, 1},
+ {"originCmd", ASSEM_1BYTE, INST_ORIGIN_COMMAND, 1, 1},
{"over", ASSEM_OVER, INST_OVER, INT_MIN,-1-1},
{"pop", ASSEM_1BYTE, INST_POP, 1, 0},
{"pushReturnCode", ASSEM_1BYTE, INST_PUSH_RETURN_CODE, 0, 1},
diff --git a/generic/tclCompCmdsGR.c b/generic/tclCompCmdsGR.c
index fc54620..df8895f 100644
--- a/generic/tclCompCmdsGR.c
+++ b/generic/tclCompCmdsGR.c
@@ -1956,6 +1956,28 @@ TclCompileNamespaceCodeCmd(
}
int
+TclCompileNamespaceOriginCmd(
+ Tcl_Interp *interp, /* Used for error reporting. */
+ Tcl_Parse *parsePtr, /* Points to a parse structure for the command
+ * created by Tcl_ParseCommand. */
+ Command *cmdPtr, /* Points to defintion of command being
+ * compiled. */
+ CompileEnv *envPtr) /* Holds resulting instructions. */
+{
+ Tcl_Token *tokenPtr;
+ DefineLineInformation; /* TIP #280 */
+
+ if (parsePtr->numWords != 2) {
+ return TCL_ERROR;
+ }
+ tokenPtr = TokenAfter(parsePtr->tokenPtr);
+
+ CompileWord(envPtr, tokenPtr, interp, 1);
+ TclEmitOpcode( INST_ORIGIN_COMMAND, envPtr);
+ return TCL_OK;
+}
+
+int
TclCompileNamespaceQualifiersCmd(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Parse *parsePtr, /* Points to a parse structure for the command
diff --git a/generic/tclCompile.c b/generic/tclCompile.c
index 4ce5a66..0732fe5 100644
--- a/generic/tclCompile.c
+++ b/generic/tclCompile.c
@@ -611,6 +611,11 @@ InstructionDesc const tclInstructionTable[] = {
* with the contents of another.
* Stack: ... string fromIdx toIdx replacement => ... newString */
+ {"originCmd", 1, 0, 0, {OPERAND_NONE}},
+ /* Reports which command was the origin (via namespace import chain)
+ * of the command named on the top of the stack.
+ * Stack: ... cmdName => ... fullOriginalCmdName */
+
{NULL, 0, 0, 0, {OPERAND_NONE}}
};
diff --git a/generic/tclCompile.h b/generic/tclCompile.h
index 207b710..fb66e90 100644
--- a/generic/tclCompile.h
+++ b/generic/tclCompile.h
@@ -786,8 +786,10 @@ typedef struct ByteCode {
#define INST_STR_TITLE 176
#define INST_STR_REPLACE 177
+#define INST_ORIGIN_COMMAND 178
+
/* The last opcode */
-#define LAST_INST_OPCODE 177
+#define LAST_INST_OPCODE 178
/*
* Table describing the Tcl bytecode instructions: their name (for displaying
diff --git a/generic/tclExecute.c b/generic/tclExecute.c
index bbc3731..14ff3dd 100644
--- a/generic/tclExecute.c
+++ b/generic/tclExecute.c
@@ -4402,15 +4402,37 @@ TEBCresume(
TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
NEXT_INST_F(1, 1, 1);
}
- case INST_RESOLVE_COMMAND: {
- Tcl_Command cmd = Tcl_GetCommandFromObj(interp, OBJ_AT_TOS);
+ {
+ Tcl_Command cmd, origCmd;
+ case INST_RESOLVE_COMMAND:
+ cmd = Tcl_GetCommandFromObj(interp, OBJ_AT_TOS);
TclNewObj(objResultPtr);
if (cmd != NULL) {
Tcl_GetCommandFullName(interp, cmd, objResultPtr);
}
TRACE_WITH_OBJ(("\"%.20s\" => ", O2S(OBJ_AT_TOS)), objResultPtr);
NEXT_INST_F(1, 1, 1);
+
+ case INST_ORIGIN_COMMAND:
+ TRACE(("\"%.30s\" => ", O2S(OBJ_AT_TOS)));
+ cmd = Tcl_GetCommandFromObj(interp, OBJ_AT_TOS);
+ if (cmd == NULL) {
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "invalid command name \"%s\"", TclGetString(OBJ_AT_TOS)));
+ Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "COMMAND",
+ TclGetString(OBJ_AT_TOS), NULL);
+ TRACE_APPEND(("ERROR: not command\n"));
+ goto gotError;
+ }
+ origCmd = TclGetOriginalCommand(cmd);
+ if (origCmd == NULL) {
+ origCmd = cmd;
+ }
+ TclNewObj(objResultPtr);
+ Tcl_GetCommandFullName(interp, origCmd, objResultPtr);
+ TRACE_APPEND(("\"%.30s\"", O2S(OBJ_AT_TOS)));
+ NEXT_INST_F(1, 1, 1);
}
case INST_TCLOO_SELF: {
CallFrame *framePtr = iPtr->varFramePtr;
diff --git a/generic/tclInt.h b/generic/tclInt.h
index 1ad32df..94ee836 100644
--- a/generic/tclInt.h
+++ b/generic/tclInt.h
@@ -3571,6 +3571,9 @@ MODULE_SCOPE int TclCompileNamespaceCodeCmd(Tcl_Interp *interp,
MODULE_SCOPE int TclCompileNamespaceCurrentCmd(Tcl_Interp *interp,
Tcl_Parse *parsePtr, Command *cmdPtr,
struct CompileEnv *envPtr);
+MODULE_SCOPE int TclCompileNamespaceOriginCmd(Tcl_Interp *interp,
+ Tcl_Parse *parsePtr, Command *cmdPtr,
+ struct CompileEnv *envPtr);
MODULE_SCOPE int TclCompileNamespaceQualifiersCmd(Tcl_Interp *interp,
Tcl_Parse *parsePtr, Command *cmdPtr,
struct CompileEnv *envPtr);
diff --git a/generic/tclNamesp.c b/generic/tclNamesp.c
index cd44455..8f2f10e 100644
--- a/generic/tclNamesp.c
+++ b/generic/tclNamesp.c
@@ -171,7 +171,7 @@ static const EnsembleImplMap defaultNamespaceMap[] = {
{"forget", NamespaceForgetCmd, TclCompileBasicMin0ArgCmd, NULL, NULL, 0},
{"import", NamespaceImportCmd, TclCompileBasicMin0ArgCmd, NULL, NULL, 0},
{"inscope", NamespaceInscopeCmd, NULL, NRNamespaceInscopeCmd, NULL, 0},
- {"origin", NamespaceOriginCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0},
+ {"origin", NamespaceOriginCmd, TclCompileNamespaceOriginCmd, NULL, NULL, 0},
{"parent", NamespaceParentCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
{"path", NamespacePathCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0},
{"qualifiers", NamespaceQualifiersCmd, TclCompileNamespaceQualifiersCmd, NULL, NULL, 0},