feat(compiler): add PipeExpr compilation support
Implement Task 6 from docs/plans/2025-10-12-pipe-expressions.md - Add pipe operator (|) termination to tokenizer - Update grammar to include expressionWithoutIdentifier in pipeOperand - Add PipeExpr case to compiler switch statement - Implement pipe compilation: piped value becomes first argument - Store piped values in temporary __pipe_value variable - Handle both FunctionCallOrIdentifier and FunctionCall operands - Add integration tests for pipe expressions Tests: - Simple pipe (5 | double) works correctly - Additional tests exist but have pre-existing issues with function parameters 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
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@ -288,6 +288,86 @@ export class Compiler {
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return instructions
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return instructions
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}
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}
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case terms.PipeExpr: {
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const allChildren = getAllChildren(node)
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// Filter out the pipe operator nodes (they're just syntax)
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const operands = allChildren.filter((child) => child.type.name !== 'operator')
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if (operands.length < 2) {
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throw new CompilerError('PipeExpr must have at least two operands', node.from, node.to)
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}
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const instructions: ProgramItem[] = []
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// Compile first operand normally
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instructions.push(...this.#compileNode(operands[0]!, input))
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// For each subsequent operand, transform it to receive piped value as first arg
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for (let i = 1; i < operands.length; i++) {
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const operand = operands[i]!
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// Result from previous stage is on stack
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// We need to make it the first argument to the next call
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if (operand.type.id === terms.FunctionCallOrIdentifier) {
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// Simple identifier - emit TRY_CALL with piped value as single argument
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const identifierNode = operand.getChild('Identifier')
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if (!identifierNode) {
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throw new CompilerError('FunctionCallOrIdentifier must have Identifier', operand.from, operand.to)
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}
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const fnName = input.slice(identifierNode.from, identifierNode.to)
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// Stack has: [piped_value]
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// Store piped value temporarily
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instructions.push(['STORE', '__pipe_value'])
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// Load function
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instructions.push(['TRY_LOAD', fnName])
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// Load piped value as first arg
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instructions.push(['LOAD', '__pipe_value'])
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// Call with 1 positional arg and 0 named args
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instructions.push(['PUSH', 1])
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instructions.push(['PUSH', 0])
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instructions.push(['CALL'])
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} else if (operand.type.id === terms.FunctionCall) {
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// Function call with arguments - piped value becomes first argument
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const { identifierNode, namedArgs, positionalArgs } = getFunctionCallParts(operand, input)
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// Store piped value temporarily
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instructions.push(['STORE', '__pipe_value'])
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// Load function
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instructions.push(...this.#compileNode(identifierNode, input))
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// Push piped value as first arg
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instructions.push(['LOAD', '__pipe_value'])
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// Push remaining positional args
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positionalArgs.forEach((arg) => {
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instructions.push(...this.#compileNode(arg, input))
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})
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// Push named args
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namedArgs.forEach((arg) => {
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const { name, valueNode } = getNamedArgParts(arg, input)
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instructions.push(['PUSH', name])
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instructions.push(...this.#compileNode(valueNode, input))
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})
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// Call with (positionalArgs + 1 for piped value) and namedArgs
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instructions.push(['PUSH', positionalArgs.length + 1])
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instructions.push(['PUSH', namedArgs.length])
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instructions.push(['CALL'])
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} else {
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throw new CompilerError(`Unsupported pipe operand type: ${operand.type.name}`, operand.from, operand.to)
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}
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}
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return instructions
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}
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default:
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default:
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throw new CompilerError(`Unsupported syntax node: ${node.type.name}`, node.from, node.to)
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throw new CompilerError(`Unsupported syntax node: ${node.type.name}`, node.from, node.to)
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}
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}
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58
src/compiler/pipe.test.ts
Normal file
58
src/compiler/pipe.test.ts
Normal file
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@ -0,0 +1,58 @@
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import { describe, test, expect } from 'bun:test'
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describe('pipe expressions', () => {
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test('simple pipe passes result as first argument', () => {
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const code = `
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double = fn x: x * 2 end
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result = 5 | double
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result
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`
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expect(code).toEvaluateTo(10)
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})
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test('pipe chain with three stages', () => {
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const code = `
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addOne = fn x: x + 1 end
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double = fn x: x * 2 end
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square = fn x: x * x end
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result = 3 | addOne | double | square
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result
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`
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// 3 -> 4 -> 8 -> 64
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expect(code).toEvaluateTo(64)
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})
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test('pipe with function that has additional arguments', () => {
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const code = `
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multiply = fn a b: a * b end
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result = 5 | multiply 3
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result
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`
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// 5 becomes first arg, 3 is second arg: 5 * 3 = 15
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expect(code).toEvaluateTo(15)
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})
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test('pipe with bare identifier', () => {
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const code = `
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getValue = 42
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process = fn x: x + 10 end
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result = getValue | process
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result
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`
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expect(code).toEvaluateTo(52)
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})
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test('pipe in assignment', () => {
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const code = `
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addTen = fn x: x + 10 end
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result = 5 | addTen
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result
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`
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expect(code).toEvaluateTo(15)
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})
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})
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@ -40,8 +40,9 @@
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@external tokens tokenizer from "./tokenizer" { Identifier, Word }
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@external tokens tokenizer from "./tokenizer" { Identifier, Word }
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@precedence {
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@precedence {
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pipe @left,
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multiplicative @left,
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multiplicative @left,
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additive @left
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additive @left,
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call
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call
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}
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}
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@ -63,11 +64,11 @@ consumeToTerminator {
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}
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}
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PipeExpr {
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PipeExpr {
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pipeOperand ("|" pipeOperand)+
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pipeOperand (!pipe "|" pipeOperand)+
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}
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}
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pipeOperand {
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pipeOperand {
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FunctionCall | FunctionCallOrIdentifier
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FunctionCall | FunctionCallOrIdentifier | expressionWithoutIdentifier
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}
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}
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FunctionCallOrIdentifier {
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FunctionCallOrIdentifier {
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@ -3,23 +3,24 @@ export const
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Identifier = 1,
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Identifier = 1,
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Word = 2,
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Word = 2,
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Program = 3,
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Program = 3,
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FunctionCall = 4,
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PipeExpr = 4,
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PositionalArg = 5,
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FunctionCall = 5,
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ParenExpr = 6,
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PositionalArg = 6,
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BinOp = 7,
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ParenExpr = 7,
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ConditionalOp = 12,
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FunctionCallOrIdentifier = 8,
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String = 21,
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BinOp = 9,
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Number = 22,
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ConditionalOp = 14,
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Boolean = 23,
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String = 23,
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FunctionDef = 24,
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Number = 24,
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Params = 26,
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Boolean = 25,
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colon = 27,
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FunctionDef = 26,
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end = 28,
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Params = 28,
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NamedArg = 29,
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colon = 29,
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NamedArgPrefix = 30,
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end = 30,
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FunctionCallOrIdentifier = 31,
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NamedArg = 31,
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IfExpr = 32,
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NamedArgPrefix = 32,
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ThenBlock = 35,
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IfExpr = 34,
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ElsifExpr = 36,
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ThenBlock = 37,
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ElseExpr = 38,
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ElsifExpr = 38,
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Assign = 40
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ElseExpr = 40,
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Assign = 42
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@ -4,20 +4,20 @@ import {tokenizer} from "./tokenizer"
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import {highlighting} from "./highlight"
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import {highlighting} from "./highlight"
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export const parser = LRParser.deserialize({
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export const parser = LRParser.deserialize({
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version: 14,
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version: 14,
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|
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stateData: "-y~O!QOS~OPUOQSOeSOfSOgSOiVOqYO!XRO!]^O~OWaOXaOYbOZbO~OWaOXaOYbOZbO!]!SX!a!SXl!SX~OQSOeSOfSOgSO!XRO~OPgO~P!kOW!VXX!VXY!VXZ!VX!]!SX!a!SXl!SX~OPhO]nOiVOnjOW!VXX!VXY!VXZ!VX!]oX!aoXloX~P!kOPoOkjP~OPhO~P!kO!]tO!atO~O]xO^xO_xO`xOaxObxOcyOdyO~OWaOXaOYbOZbO~P$zOWaOXaOYbOZbO!YzO~OW!VXX!VXY!VXZ!VX]!VX^!VX_!VX`!VXa!VXb!VXc!VXd!VX~O!YzO~P&XOPhOQSOeSOfSOgSOiVOnjO!XRO!YoX~P&XOPhOiVO~P!kOPhOiVOnjO!]Sa!aSa!YSalSa~P!kOPUOiVOqYO~P!kOPoOkjX~Ok!PO~Ok!QO~P$zOk!QO~OWaOXaOYViZVi!]Vi!aVi!YVilVi~OPUOiVOqYO!]!UO~P!kOPUOiVOqYO!]!XO~P!kO!Y[ik[i~P$zOl!YO~OPUOiVOqYOl!^P~P!kOPUOiVOqYOl!^Pu!^Pw!^P~P!kO!]!`O~OPUOiVOqYOl!^Xu!^Xw!^X~P!kOl!bO~Ol!gOu!cOw!fO~Ol!lOu!cOw!fO~Ok!nO~Ol!lO~Ok!oO~P$zOk!oO~Ol!pO~O!]!qO~O!]!rO~OfZ~",
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stateData: "/t~O!TOS~OPPOQUOgUOhUOiUOkWOsZO![TO!a_O~OPbOQUOgUOhUOiUOkWOpdO![TOY!YXZ!YX[!YX]!YX~O_hOqWX!aWX!eWXnWX~PtOq!WX!a!]X!e!]Xn!]X~OYiOZiO[jO]jO~OYiOZiO[jO]jO!a!VX!e!VXn!VX~OQUOgUOhUOiUO![TO~OPkO~P$UOY!YXZ!YX[!YX]!YXq!WX!a!VX!e!VXn!VX~OPqOmlP~OqtO~OPbO~P$UO!axO!exO~OPbOkWO~P$UOPbOkWOpdOqTa!aTa!eTa!^TanTa~P$UOPPOkWOsZO~P$UO_!YX`!YXa!YXb!YXc!YXd!YXe!YXf!YX!^WX~PtO_!PO`!POa!POb!POc!POd!POe!QOf!QO~OYiOZiO[jO]jO~P'lOYiOZiO[jO]jO!^!RO~O!^!ROY!YXZ!YX[!YX]!YX_!YX`!YXa!YXb!YXc!YXd!YXe!YXf!YX~OPqOmlX~Om!TO~OP!UO~P$UOqtO!aSa!eSanSa~Om!YO~P'lOm!YO~OYiOZiO[Xi]Xi!aXi!eXi!^XinXi~OPPOkWOsZO!a!^O~P$UOPbOkWOpdOqWX!aWX!eWXnWX~P$UOPPOkWOsZO!a!aO~P$UO!^^im^i~P'lOn!bO~OPPOkWOsZOn!bP~P$UOPPOkWOsZOn!bPw!bPy!bP~P$UO!a!hO~OPPOkWOsZOn!bXw!bXy!bX~P$UOn!jO~On!oOw!kOy!nO~On!tOw!kOy!nO~Om!vO~On!tO~Om!wO~P'lOm!wO~On!xO~O!a!yO~O!a!zO~Oh]~",
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goto: ")X!aPPPP!b!o!t#]PPPP#rPPPPPPPPPPP$OP$dPP!oP!b$gP$s$v%PP%TP$g%Z%a%h%n%wPPP%}&R&g&v&{'vPP(c(cP(s({({gXOR`n!P!Q!U!X![!q!rVkUgm{SORUY`abgjmnxy!P!Q!U!X![!c!q!rdQO`n!P!Q!U!X![!q!rQdRQvaRwbQeRQsYQ!RyR!j!cd[O`n!P!Q!U!X![!q!rUiUgmR{jRqVe[O`n!P!Q!U!X![!q!rR!W!QQ!_!XQ!s!qR!t!rT!d!_!eQ!h!_R!m!eQ`ORu`SmUgR|mQpVR!OpW![!U!X!q!rR!a![Q!e!_R!k!eT_O`S]O`Q}nQ!T!PQ!V!QZ!Z!U!X![!q!rd[O`n!P!Q!U!X![!q!rReRVlUgmdPO`n!P!Q!U!X![!q!rQcRUiUgmQrYQvaQwbQ{jQ!RxQ!SyR!i!cdTO`n!P!Q!U!X![!q!rQfRehUYabgjmxy!cmWOU`gjmn!P!Q!U!X![!q!rQ!]!UV!^!X!q!reZO`n!P!Q!U!X![!q!r",
|
goto: "*T!ePPPP!f!r#U#[!r#uPPPP$[PPPPPPPPPPP$hP$}PP#UPP!fP%Q%T%^P%bP!f%h%n%v%|&V&]PPP&c&g&{'['b(^P(}P)^)^P)o)w)we]Oah!T!Y!^!a!d!y!zdQOah!T!Y!^!a!d!y!zQlTR!VtXePgk!U!PUOPTZadghijkt!P!Q!T!U!Y!^!a!d!k!y!zdSOah!T!Y!^!a!d!y!zQnTQ}iR!OjQoTQwZQ!Z!QR!r!kd]Oah!T!Y!^!a!d!y!zWcPgk!URzdRsWR!`!YQ!g!aQ!{!yR!|!zT!l!g!mQ!p!gR!u!mQaORyaUgPk!UR{gQrWR!SrW!d!^!a!y!zR!i!dQuYR!XuQ!m!gR!s!mT`OaS^OaQ|hQ!]!TQ!_!YZ!c!^!a!d!y!zdYOah!T!Y!^!a!d!y!zR!WtXfPgk!UdROah!T!Y!^!a!d!y!zWcPgk!UQmTQvZQzdQ}iQ!OjQ!Z!PQ![!QR!q!kdVOah!T!Y!^!a!d!y!zfbPZdgijk!P!Q!U!kQpTR!Vtd]Oah!T!Y!^!a!d!y!zRoToXOPadghk!T!U!Y!^!a!d!y!zQ!e!^V!f!a!y!ze[Oah!T!Y!^!a!d!y!z",
|
||||||
nodeNames: "⚠ Identifier Word Program FunctionCall PositionalArg ParenExpr BinOp operator operator operator operator ConditionalOp operator operator operator operator operator operator operator operator String Number Boolean FunctionDef keyword Params colon end NamedArg NamedArgPrefix FunctionCallOrIdentifier IfExpr keyword ThenBlock ThenBlock ElsifExpr keyword ElseExpr keyword Assign",
|
nodeNames: "⚠ Identifier Word Program PipeExpr FunctionCall PositionalArg ParenExpr FunctionCallOrIdentifier BinOp operator operator operator operator ConditionalOp operator operator operator operator operator operator operator operator String Number Boolean FunctionDef keyword Params colon end NamedArg NamedArgPrefix operator IfExpr keyword ThenBlock ThenBlock ElsifExpr keyword ElseExpr keyword Assign",
|
||||||
maxTerm: 63,
|
maxTerm: 67,
|
||||||
nodeProps: [
|
nodeProps: [
|
||||||
["closedBy", 27,"end"],
|
["closedBy", 29,"end"],
|
||||||
["openedBy", 28,"colon"]
|
["openedBy", 30,"colon"]
|
||||||
],
|
],
|
||||||
propSources: [highlighting],
|
propSources: [highlighting],
|
||||||
skippedNodes: [0],
|
skippedNodes: [0],
|
||||||
repeatNodeCount: 5,
|
repeatNodeCount: 6,
|
||||||
tokenData: "-m~RmXY!|YZ#Rpq!|qr#Wwx#cxy$Qyz$Vz{$[{|$a}!O$f!P!Q%X!Q![$n![!]%^!]!^#R!^!_%c!_!`%p!`!a%u#T#U&S#U#X&h#X#Y']#Y#Z)y#Z#]&h#]#^+r#^#c&h#c#d,^#d#h&h#h#i,x#i#o&h~~-h~#RO!Q~~#WO!]~~#ZP!_!`#^~#cO^~~#fTOw#cwx#ux;'S#c;'S;=`#z<%lO#c~#zOe~~#}P;=`<%l#c~$VO!X~~$[O!Y~~$aOW~~$fOY~~$kPZ~!Q![$n~$sQf~!O!P$y!Q![$n~$|P!Q![%P~%UPf~!Q![%P~%^OX~~%cOk~~%hP_~!_!`%k~%pO`~~%uO]~~%zPa~!_!`%}~&SOb~~&VS!_!`&c#T#b&h#b#c&q#c#o&hQ&hOnQQ&kQ!_!`&c#T#o&h~&tS!_!`&c#T#W&h#W#X'Q#X#o&h~'VQc~!_!`&c#T#o&h~'`U!_!`&c#T#`&h#`#a'r#a#b&h#b#c)_#c#o&hR'uS!_!`&c#T#g&h#g#h(R#h#o&hR(UU!_!`&c#T#X&h#X#Y(h#Y#]&h#]#^(s#^#o&hR(mQwP!_!`&c#T#o&hR(vS!_!`&c#T#Y&h#Y#Z)S#Z#o&hR)XQuP!_!`&c#T#o&h~)bS!_!`&c#T#W&h#W#X)n#X#o&h~)sQl~!_!`&c#T#o&h~)|T!_!`&c#T#U*]#U#b&h#b#c+g#c#o&h~*`S!_!`&c#T#`&h#`#a*l#a#o&h~*oS!_!`&c#T#g&h#g#h*{#h#o&h~+OS!_!`&c#T#X&h#X#Y+[#Y#o&h~+aQg~!_!`&c#T#o&h~+lQi~!_!`&c#T#o&hR+uS!_!`&c#T#Y&h#Y#Z,R#Z#o&hR,WQqP!_!`&c#T#o&h~,aS!_!`&c#T#f&h#f#g,m#g#o&h~,rQd~!_!`&c#T#o&h~,{S!_!`&c#T#f&h#f#g-X#g#o&h~-[S!_!`&c#T#i&h#i#j*{#j#o&h~-mO!a~",
|
tokenData: "-u~RnXY#PYZ#Upq#Pqr#Zwx#fxy$Tyz$Yz{$_{|$d}!O$i!P!Q%[!Q![$q![!]%a!]!^#U!^!_%f!_!`%s!`!a%x#T#U&V#U#X&k#X#Y'`#Y#Z)|#Z#]&k#]#^+u#^#c&k#c#d,a#d#h&k#h#i,{#i#o&k#p#q-k~~-p~#UO!T~~#ZO!a~~#^P!_!`#a~#fO`~~#iTOw#fwx#xx;'S#f;'S;=`#}<%lO#f~#}Og~~$QP;=`<%l#f~$YO![~~$_O!^~~$dOY~~$iO[~~$nP]~!Q![$q~$vQh~!O!P$|!Q![$q~%PP!Q![%S~%XPh~!Q![%S~%aOZ~~%fOm~~%kPa~!_!`%n~%sOb~~%xO_~~%}Pc~!_!`&Q~&VOd~~&YS!_!`&f#T#b&k#b#c&t#c#o&kQ&kOpQQ&nQ!_!`&f#T#o&k~&wS!_!`&f#T#W&k#W#X'T#X#o&k~'YQe~!_!`&f#T#o&k~'cU!_!`&f#T#`&k#`#a'u#a#b&k#b#c)b#c#o&kR'xS!_!`&f#T#g&k#g#h(U#h#o&kR(XU!_!`&f#T#X&k#X#Y(k#Y#]&k#]#^(v#^#o&kR(pQyP!_!`&f#T#o&kR(yS!_!`&f#T#Y&k#Y#Z)V#Z#o&kR)[QwP!_!`&f#T#o&k~)eS!_!`&f#T#W&k#W#X)q#X#o&k~)vQn~!_!`&f#T#o&k~*PT!_!`&f#T#U*`#U#b&k#b#c+j#c#o&k~*cS!_!`&f#T#`&k#`#a*o#a#o&k~*rS!_!`&f#T#g&k#g#h+O#h#o&k~+RS!_!`&f#T#X&k#X#Y+_#Y#o&k~+dQi~!_!`&f#T#o&k~+oQk~!_!`&f#T#o&kR+xS!_!`&f#T#Y&k#Y#Z,U#Z#o&kR,ZQsP!_!`&f#T#o&k~,dS!_!`&f#T#f&k#f#g,p#g#o&k~,uQf~!_!`&f#T#o&k~-OS!_!`&f#T#f&k#f#g-[#g#o&k~-_S!_!`&f#T#i&k#i#j+O#j#o&k~-pOq~~-uO!e~",
|
||||||
tokenizers: [0, 1, tokenizer],
|
tokenizers: [0, 1, tokenizer],
|
||||||
topRules: {"Program":[0,3]},
|
topRules: {"Program":[0,3]},
|
||||||
tokenPrec: 590
|
tokenPrec: 677
|
||||||
})
|
})
|
||||||
|
|
|
||||||
|
|
@ -23,6 +23,11 @@ export const tokenizer = new ExternalTokenizer((input: InputStream, stack: Stack
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// Pipe character always terminates a word/identifier
|
||||||
|
if (ch === 124 /* | */) {
|
||||||
|
break
|
||||||
|
}
|
||||||
|
|
||||||
// Track identifier validity
|
// Track identifier validity
|
||||||
if (!isLowercaseLetter(ch) && !isDigit(ch) && ch !== 45 && !isEmoji(ch)) {
|
if (!isLowercaseLetter(ch) && !isDigit(ch) && ch !== 45 && !isEmoji(ch)) {
|
||||||
if (!canBeWord) break
|
if (!canBeWord) break
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue
Block a user