670662a360
... basically just optional blocks (no else). Change-Id: If091c6b8fdeb6c13a5f3dd284d0a9a87f9f4228d Reviewed-on: https://cl.tvl.fyi/c/depot/+/3739 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in>
55 lines
998 B
Rust
55 lines
998 B
Rust
#[derive(Clone, Copy, Debug)]
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pub struct ConstantIdx(pub usize);
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#[derive(Clone, Copy, Debug)]
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pub struct StackIdx(pub usize);
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#[derive(Clone, Copy, Debug)]
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pub struct CodeIdx(pub usize);
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#[derive(Clone, Copy, Debug)]
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pub struct CodeOffset(pub usize);
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#[derive(Debug)]
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pub enum OpCode {
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/// Push a constant onto the stack.
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OpConstant(ConstantIdx),
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// Literal pushes
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OpNil,
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OpTrue,
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OpFalse,
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/// Return from the current function.
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OpReturn,
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// Boolean & comparison operators
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OpNot,
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OpEqual,
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OpGreater,
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OpLess,
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/// Unary negation
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OpNegate,
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// Arithmetic operators
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OpAdd,
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OpSubtract,
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OpMultiply,
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OpDivide,
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// Built in operations
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OpPrint,
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OpPop,
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// Variable management
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OpDefineGlobal(ConstantIdx),
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OpGetGlobal(ConstantIdx),
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OpSetGlobal(ConstantIdx),
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OpGetLocal(StackIdx),
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OpSetLocal(StackIdx),
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// Control flow
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OpJumpPlaceholder(bool),
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OpJumpIfFalse(CodeOffset),
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}
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