31 lines
633 B
Go
31 lines
633 B
Go
package hil
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import (
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"sync"
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"github.com/hashicorp/hil/ast"
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)
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var parserLock sync.Mutex
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var parserResult ast.Node
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// Parse parses the given program and returns an executable AST tree.
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func Parse(v string) (ast.Node, error) {
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// Unfortunately due to the way that goyacc generated parsers are
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// formatted, we can only do a single parse at a time without a lot
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// of extra work. In the future we can remove this limitation.
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parserLock.Lock()
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defer parserLock.Unlock()
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// Reset our globals
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parserResult = nil
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// Create the lexer
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lex := &parserLex{Input: v}
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// Parse!
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parserParse(lex)
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return parserResult, lex.Err
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}
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