forked from defunkt/ReefVM
74 lines
1.5 KiB
TypeScript
74 lines
1.5 KiB
TypeScript
/**
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* Demonstrates the ADD opcode working with both numbers and strings
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*
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* ADD now behaves like JavaScript's + operator:
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* - If either operand is a string, it does string concatenation
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* - Otherwise, it does numeric addition
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*/
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import { toBytecode, run } from "#reef"
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// Numeric addition
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const numericAdd = toBytecode(`
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PUSH 10
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PUSH 5
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ADD
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HALT
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`)
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console.log('Numeric addition (10 + 5):')
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console.log(await run(numericAdd))
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// Output: { type: 'number', value: 15 }
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// String concatenation
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const stringConcat = toBytecode(`
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PUSH "hello"
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PUSH " world"
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ADD
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HALT
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`)
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console.log('\nString concatenation ("hello" + " world"):')
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console.log(await run(stringConcat))
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// Output: { type: 'string', value: 'hello world' }
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// Mixed: string + number
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const mixedConcat = toBytecode(`
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PUSH "count: "
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PUSH 42
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ADD
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HALT
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`)
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console.log('\nMixed concatenation ("count: " + 42):')
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console.log(await run(mixedConcat))
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// Output: { type: 'string', value: 'count: 42' }
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// Building a message
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const buildMessage = toBytecode(`
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PUSH "You have "
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PUSH 3
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ADD
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PUSH " new messages"
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ADD
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HALT
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`)
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console.log('\nBuilding a message:')
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console.log(await run(buildMessage))
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// Output: { type: 'string', value: 'You have 3 new messages' }
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// Computing then concatenating
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const computeAndConcat = toBytecode(`
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PUSH "Result: "
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PUSH 10
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PUSH 5
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ADD
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ADD
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HALT
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`)
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console.log('\nComputing then concatenating ("Result: " + (10 + 5)):')
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console.log(await run(computeAndConcat))
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// Output: { type: 'string', value: 'Result: 15' }
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