Table of Contents

5.4.4.2 Resume Statement

Note

This section describes the implementation of MS-VBAL §5.4.4.2 Resume Statement.

Syntax

AST node Instruction kind(s) Notes
ResumeStatementNode ResumeCurrentStatement A bare Resume (LabelExpression is null), or Resume 0.
ResumeStatementNode ResumeLabel Resume <label>. Target: the label's offset.
ResumeNextStatementNode ResumeNext Resume Next.
  • ResumeStatementNode.LabelExpression is nullable.
  • Resume Next has its own node type, ResumeNextStatementNode. It is not a ResumeStatementNode with a "Next" label.
  • The 0 in Resume 0 is the same MS-VBAL §5.4.4.2 sentinel that On Error GoTo 0 uses; see RD-VBAL §5.4.4.1 On Error Statement.

See RD-VBAL §3.4.2 Simple Statements and RD-VBAL §3.5.2 Instruction.

Static Semantics

Condition Compile error
Resume names a label that is not defined, e.g. Resume Retry with no Retry:. VBC09309 — Label not defined

To resolve VBC09309 for an undefined Resume label, define the label, or use Resume Next to continue after the statement that failed. Resume 0 is not a jump, so VBC09309 is not raised for it.

Runtime Semantics

Resume, Resume Next and Resume <label> all require an active error. The active error and the offset of the fault statement are held on the activation's ErrorHandlerState; see RD-VBAL §5.4.4.1 On Error Statement.

  1. If the activation has no active error, run-time error 20, "Resume without error", is raised.
  2. Otherwise, the active error is cleared.
  3. Execution continues where the Resume form says:
Form Instruction kind Execution continues at
Bare Resume ResumeCurrentStatement The fault statement, which is re-executed.
Resume 0 ResumeCurrentStatement The fault statement, which is re-executed: Resume 0 behaves as a bare Resume.
Resume Next ResumeNext The statement past the fault statement.
Resume <label> ResumeLabel The label.
Condition Run-time error
Resume, Resume Next or Resume <label> executes without an active error. 20 — Resume without error

Implementation

Type or member Role
RDCore.Runtime.Execution.ProcedureExecutor Dispatches ResumeCurrentStatement, ResumeNext and ResumeLabel.
ErrorHandlerState.ActiveError, ErrorHandlerState.FaultStatementOffset The active error, and the offset of the fault statement (RDCore.SDK).
VBRuntimeErrorId.ResumeWithoutError Run-time error 20.

⏮️ RD-VBAL §5.4.4.1 On Error Statement | ⏭️ RD-VBAL §5.4.4.3 Error Statement

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