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GeezerVison is showing github.com — libscript: Check "bytecode ready" MCScriptExecuteContext invariant · livecode/livecode@c4fa2b0

This repository was archived by the owner on Aug 31, 2021. It is now read-only.

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  • libscript/src
    • script-execute.hpp
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‎libscript/src/script-execute.hpp‎

Copy file name to clipboardExpand all lines: libscript/src/script-execute.hpp
+9-2Lines changed: 9 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -271,6 +271,7 @@ class MCScriptExecuteContext
271271
Frame *m_frame;
272272
const byte_t *m_bytecode_ptr;
273273
const byte_t *m_next_bytecode_ptr;
274+
bool m_operation_ready;
274275
MCScriptBytecodeOp m_operation;
275276
uindex_t m_arguments[256];
276277
uindex_t m_argument_count;
@@ -285,6 +286,7 @@ MCScriptExecuteContext::MCScriptExecuteContext(void)
285286
m_frame(nil),
286287
m_bytecode_ptr(nil),
287288
m_next_bytecode_ptr(nil),
289+
m_operation_ready(false),
288290
m_root_arguments(nil),
289291
m_root_result(nil)
290292
{
@@ -307,6 +309,7 @@ MCScriptExecuteContext::~MCScriptExecuteContext(void)
307309
inline MCScriptBytecodeOp
308310
MCScriptExecuteContext::GetOperation(void) const
309311
{
312+
MCAssert(m_operation_ready);
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return m_operation;
311314
}
312315

@@ -325,18 +328,21 @@ MCScriptExecuteContext::GetNextAddress(void) const
325328
inline uindex_t
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MCScriptExecuteContext::GetArgumentCount(void) const
327330
{
331+
MCAssert(m_operation_ready);
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return m_argument_count;
329333
}
330334

331335
inline uindex_t
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MCScriptExecuteContext::GetArgument(uindex_t p_index) const
333337
{
338+
MCAssert(m_operation_ready);
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return m_arguments[p_index];
335340
}
336341

337342
inline const uindex_t *
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MCScriptExecuteContext::GetArgumentList(void) const
339344
{
345+
MCAssert(m_operation_ready);
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return m_arguments;
341347
}
342348

@@ -1165,8 +1171,9 @@ MCScriptExecuteContext::Step(void)
11651171
m_operation,
11661172
m_arguments,
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m_argument_count);
1168-
1169-
return !m_error;
1174+
1175+
m_operation_ready = !m_error;
1176+
return m_operation_ready;
11701177
}
11711178

11721179
inline bool

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