parser

Documentation

Overview

Package parser defines the full Serulian language parser and lexer for translating Serulian source code into an abstract syntax tree (AST).

Index

• Constants
• Variables
• func IsTypePrefix(input string) bool
• func Parse(builder shared.NodeBuilder, importReporter packageloader.ImportHandler, ...) (shared.AstNode, bool)
• func ParseExpression(builder shared.NodeBuilder, source compilercommon.InputSource, startIndex int, ...) (shared.AstNode, bool)

Constants

const EOFRUNE = -1

Variables

var BinaryOperators = []boe{

	boe{tokenTypeEllipsis, sourceshape.NodeDefineRangeExpression},
	boe{tokenTypeExclusiveEllipsis, sourceshape.NodeDefineExclusiveRangeExpression},

	boe{tokenTypeBooleanOr, sourceshape.NodeBooleanOrExpression},
	boe{tokenTypeBooleanAnd, sourceshape.NodeBooleanAndExpression},

	boe{tokenTypeEqualsEquals, sourceshape.NodeComparisonEqualsExpression},
	boe{tokenTypeNotEquals, sourceshape.NodeComparisonNotEqualsExpression},

	boe{tokenTypeLTE, sourceshape.NodeComparisonLTEExpression},
	boe{tokenTypeGTE, sourceshape.NodeComparisonGTEExpression},

	boe{tokenTypeLessThan, sourceshape.NodeComparisonLTExpression},
	boe{tokenTypeGreaterThan, sourceshape.NodeComparisonGTExpression},

	boe{tokenTypeNullOrValueOperator, sourceshape.NodeNullComparisonExpression},

	boe{tokenTypePipe, sourceshape.NodeBitwiseOrExpression},
	boe{tokenTypeAnd, sourceshape.NodeBitwiseAndExpression},
	boe{tokenTypeXor, sourceshape.NodeBitwiseXorExpression},
	boe{tokenTypeBitwiseShiftLeft, sourceshape.NodeBitwiseShiftLeftExpression},

	boe{tokenTypePlus, sourceshape.NodeBinaryAddExpression},
	boe{tokenTypeMinus, sourceshape.NodeBinarySubtractExpression},
	boe{tokenTypeModulo, sourceshape.NodeBinaryModuloExpression},
	boe{tokenTypeTimes, sourceshape.NodeBinaryMultiplyExpression},
	boe{tokenTypeDiv, sourceshape.NodeBinaryDivideExpression},

	boe{tokenTypeIsOperator, sourceshape.NodeIsComparisonExpression},

	boe{tokenTypeInOperator, sourceshape.NodeInCollectionExpression},
}

BinaryOperators defines the binary operators in precedence order.

Functions

func IsTypePrefix

func IsTypePrefix(input string) bool

IsTypePrefix returns whether the given input string is a prefix that supports a type reference declared right after it. For example, the string `function DoSomething() ` will return `true`, as a type can be specified right after that code snippet.

func Parse

func Parse(builder shared.NodeBuilder, importReporter packageloader.ImportHandler, source compilercommon.InputSource, input string) (shared.AstNode, bool)

Parse performs parsing of the given input string and returns the root AST node.

func ParseExpression

func ParseExpression(builder shared.NodeBuilder, source compilercommon.InputSource, startIndex int, input string) (shared.AstNode, bool)

ParseExpression parses the given string as an expression.