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@glimmer/compiler

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import { assertPresent, isPresent, mapPresent } from '@glimmer/util'; export class ExpressionEncoder { expr(expr) { switch (expr.type) { case 'Missing': return undefined; case 'Literal': return this.Literal(expr); case 'CallExpression': return this.CallExpression(expr); case 'DeprecatedCallExpression': return this.DeprecatedCallExpression(expr); case 'PathExpression': return this.PathExpression(expr); case 'Arg': return [30 /* GetSymbol */ , expr.symbol]; case 'Local': return this.Local(expr); case 'This': return [30 /* GetSymbol */ , 0]; case 'Free': return [expr.resolution.resolution(), expr.symbol]; case 'HasBlock': return this.HasBlock(expr); case 'HasBlockParams': return this.HasBlockParams(expr); case 'Curry': return this.Curry(expr); case 'Not': return this.Not(expr); case 'IfInline': return this.IfInline(expr); case 'InterpolateExpression': return this.InterpolateExpression(expr); case 'GetDynamicVar': return this.GetDynamicVar(expr); case 'Log': return this.Log(expr); } } Literal({ value }) { if (value === undefined) { return [27 /* Undefined */ ]; } else { return value; } } Missing() { return undefined; } HasBlock({ symbol }) { return [48 /* HasBlock */ , [30 /* GetSymbol */ , symbol]]; } HasBlockParams({ symbol }) { return [49 /* HasBlockParams */ , [30 /* GetSymbol */ , symbol]]; } Curry({ definition, curriedType, args }) { return [50 /* Curry */ , EXPR.expr(definition), curriedType, EXPR.Positional(args.positional), EXPR.NamedArguments(args.named)]; } Local({ isTemplateLocal, symbol }) { return [isTemplateLocal ? 32 /* GetTemplateSymbol */ : 30 /* GetSymbol */ , symbol]; } GetWithResolver({ symbol }) { return [34 /* GetFreeAsComponentOrHelperHeadOrThisFallback */ , symbol]; } PathExpression({ head, tail }) { let getOp = EXPR.expr(head); return [...getOp, EXPR.Tail(tail)]; } InterpolateExpression({ parts }) { return [29 /* Concat */ , parts.map(e => EXPR.expr(e)).toArray()]; } CallExpression({ callee, args }) { return [28 /* Call */ , EXPR.expr(callee), ...EXPR.Args(args)]; } DeprecatedCallExpression({ arg, callee }) { return [99 /* GetFreeAsDeprecatedHelperHeadOrThisFallback */ , callee.symbol, [arg.chars]]; } Tail({ members }) { return mapPresent(members, member => member.chars); } Args({ positional, named }) { return [this.Positional(positional), this.NamedArguments(named)]; } Positional({ list }) { return list.map(l => EXPR.expr(l)).toPresentArray(); } NamedArgument({ key, value }) { return [key.chars, EXPR.expr(value)]; } NamedArguments({ entries: pairs }) { let list = pairs.toArray(); if (isPresent(list)) { let names = []; let values = []; for (let pair of list) { let [name, value] = EXPR.NamedArgument(pair); names.push(name); values.push(value); } assertPresent(names); assertPresent(values); return [names, values]; } else { return null; } } Not({ value }) { return [51 /* Not */ , EXPR.expr(value)]; } IfInline({ condition, truthy, falsy }) { let expr = [52 /* IfInline */ , EXPR.expr(condition), EXPR.expr(truthy)]; if (falsy) { expr.push(EXPR.expr(falsy)); } return expr; } GetDynamicVar({ name }) { return [53 /* GetDynamicVar */ , EXPR.expr(name)]; } Log({ positional }) { return [54 /* Log */ , this.Positional(positional)]; } } export const EXPR = new ExpressionEncoder(); //# 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{ PresentArray, SexpOpcodes, WireFormat } from '@glimmer/interfaces';\nimport { ASTv2 } from '@glimmer/syntax';\nimport { assertPresent, isPresent, mapPresent } from '@glimmer/util';\n\nimport * as mir from './mir';\n\nexport type HashPair = [string, WireFormat.Expression];\n\nexport class ExpressionEncoder {\n  expr(expr: mir.ExpressionNode): WireFormat.Expression {\n    switch (expr.type) {\n      case 'Missing':\n        return undefined;\n      case 'Literal':\n        return this.Literal(expr);\n      case 'CallExpression':\n        return this.CallExpression(expr);\n      case 'DeprecatedCallExpression':\n        return this.DeprecatedCallExpression(expr);\n      case 'PathExpression':\n        return this.PathExpression(expr);\n      case 'Arg':\n        return [SexpOpcodes.GetSymbol, expr.symbol];\n      case 'Local':\n        return this.Local(expr);\n      case 'This':\n        return [SexpOpcodes.GetSymbol, 0];\n      case 'Free':\n        return [expr.resolution.resolution(), expr.symbol];\n      case 'HasBlock':\n        return this.HasBlock(expr);\n      case 'HasBlockParams':\n        return this.HasBlockParams(expr);\n      case 'Curry':\n        return this.Curry(expr);\n      case 'Not':\n        return this.Not(expr);\n      case 'IfInline':\n        return this.IfInline(expr);\n      case 'InterpolateExpression':\n        return this.InterpolateExpression(expr);\n      case 'GetDynamicVar':\n        return this.GetDynamicVar(expr);\n      case 'Log':\n        return this.Log(expr);\n    }\n  }\n\n  Literal({\n    value,\n  }: ASTv2.LiteralExpression): WireFormat.Expressions.Value | WireFormat.Expressions.Undefined {\n    if (value === undefined) {\n      return [SexpOpcodes.Undefined];\n    } else {\n      return value;\n    }\n  }\n\n  Missing(): undefined {\n    return undefined;\n  }\n\n  HasBlock({ symbol }: mir.HasBlock): WireFormat.Expressions.HasBlock {\n    return [SexpOpcodes.HasBlock, [SexpOpcodes.GetSymbol, symbol]];\n  }\n\n  HasBlockParams({ symbol }: mir.HasBlockParams): WireFormat.Expressions.HasBlockParams {\n    return [SexpOpcodes.HasBlockParams, [SexpOpcodes.GetSymbol, symbol]];\n  }\n\n  Curry({ definition, curriedType, args }: mir.Curry): WireFormat.Expressions.Curry {\n    return [\n      SexpOpcodes.Curry,\n      EXPR.expr(definition),\n      curriedType,\n      EXPR.Positional(args.positional),\n      EXPR.NamedArguments(args.named),\n    ];\n  }\n\n  Local({\n    isTemplateLocal,\n    symbol,\n  }: ASTv2.LocalVarReference):\n    | WireFormat.Expressions.GetSymbol\n    | WireFormat.Expressions.GetTemplateSymbol {\n    return [isTemplateLocal ? SexpOpcodes.GetTemplateSymbol : SexpOpcodes.GetSymbol, symbol];\n  }\n\n  GetWithResolver({ symbol }: mir.GetWithResolver): WireFormat.Expressions.GetContextualFree {\n    return [SexpOpcodes.GetFreeAsComponentOrHelperHeadOrThisFallback, symbol];\n  }\n\n  PathExpression({ head, tail }: mir.PathExpression): WireFormat.Expressions.GetPath {\n    let getOp = EXPR.expr(head) as WireFormat.Expressions.GetVar;\n\n    return [...getOp, EXPR.Tail(tail)];\n  }\n\n  InterpolateExpression({ parts }: mir.InterpolateExpression): WireFormat.Expressions.Concat {\n    return [SexpOpcodes.Concat, parts.map((e) => EXPR.expr(e)).toArray()];\n  }\n\n  CallExpression({ callee, args }: mir.CallExpression): WireFormat.Expressions.Helper {\n    return [SexpOpcodes.Call, EXPR.expr(callee), ...EXPR.Args(args)];\n  }\n\n  DeprecatedCallExpression({\n    arg,\n    callee,\n  }: mir.DeprecatedCallExpression): WireFormat.Expressions.GetPathFreeAsDeprecatedHelperHeadOrThisFallback {\n    return [SexpOpcodes.GetFreeAsDeprecatedHelperHeadOrThisFallback, callee.symbol, [arg.chars]];\n  }\n\n  Tail({ members }: mir.Tail): PresentArray<string> {\n    return mapPresent(members, (member) => member.chars);\n  }\n\n  Args({ positional, named }: mir.Args): WireFormat.Core.Args {\n    return [this.Positional(positional), this.NamedArguments(named)];\n  }\n\n  Positional({ list }: mir.Positional): WireFormat.Core.Params {\n    return list.map((l) => EXPR.expr(l)).toPresentArray();\n  }\n\n  NamedArgument({ key, value }: mir.NamedArgument): HashPair {\n    return [key.chars, EXPR.expr(value)];\n  }\n\n  NamedArguments({ entries: pairs }: mir.NamedArguments): WireFormat.Core.Hash {\n    let list = pairs.toArray();\n\n    if (isPresent(list)) {\n      let names: string[] = [];\n      let values: WireFormat.Expression[] = [];\n\n      for (let pair of list) {\n        let [name, value] = EXPR.NamedArgument(pair);\n        names.push(name);\n        values.push(value);\n      }\n\n      assertPresent(names);\n      assertPresent(values);\n\n      return [names, values];\n    } else {\n      return null;\n    }\n  }\n\n  Not({ value }: mir.Not): WireFormat.Expressions.Not {\n    return [SexpOpcodes.Not, EXPR.expr(value)];\n  }\n\n  IfInline({ condition, truthy, falsy }: mir.IfInline): WireFormat.Expressions.IfInline {\n    let expr = [SexpOpcodes.IfInline, EXPR.expr(condition), EXPR.expr(truthy)];\n\n    if (falsy) {\n      expr.push(EXPR.expr(falsy));\n    }\n\n    return expr as WireFormat.Expressions.IfInline;\n  }\n\n  GetDynamicVar({ name }: mir.GetDynamicVar): WireFormat.Expressions.GetDynamicVar {\n    return [SexpOpcodes.GetDynamicVar, EXPR.expr(name)];\n  }\n\n  Log({ positional }: mir.Log): WireFormat.Expressions.Log {\n    return [SexpOpcodes.Log, this.Positional(positional)];\n  }\n}\n\nexport const EXPR = new ExpressionEncoder();\n"],"sourceRoot":""}